diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp
index 1911839..b500a6b 100644
--- a/cmds/atrace/atrace.cpp
+++ b/cmds/atrace/atrace.cpp
@@ -82,6 +82,7 @@
     { "hal",        "Hardware Modules", ATRACE_TAG_HAL, { } },
     { "res",        "Resource Loading", ATRACE_TAG_RESOURCES, { } },
     { "dalvik",     "Dalvik VM",        ATRACE_TAG_DALVIK, { } },
+    { "rs",         "RenderScript",     ATRACE_TAG_RS, { } },
     { "sched",      "CPU Scheduling",   0, {
         { REQ,      "/sys/kernel/debug/tracing/events/sched/sched_switch/enable" },
         { REQ,      "/sys/kernel/debug/tracing/events/sched/sched_wakeup/enable" },
@@ -102,6 +103,9 @@
         { REQ,      "/sys/kernel/debug/tracing/events/block/block_rq_issue/enable" },
         { REQ,      "/sys/kernel/debug/tracing/events/block/block_rq_complete/enable" },
     } },
+    { "mmc",        "eMMC commands",    0, {
+        { REQ,      "/sys/kernel/debug/tracing/events/mmc/enable" },
+    } },
     { "load",       "CPU Load",         0, {
         { REQ,      "/sys/kernel/debug/tracing/events/cpufreq_interactive/enable" },
     } },
diff --git a/cmds/dumpstate/dumpstate.c b/cmds/dumpstate/dumpstate.c
index 89bea91..7710c5b 100644
--- a/cmds/dumpstate/dumpstate.c
+++ b/cmds/dumpstate/dumpstate.c
@@ -95,6 +95,7 @@
 
     run_command("PROCESSES", 10, "ps", "-P", NULL);
     run_command("PROCESSES AND THREADS", 10, "ps", "-t", "-p", "-P", NULL);
+    run_command("PROCESSES (SELINUX LABELS)", 10, "ps", "-Z", NULL);
     run_command("LIBRANK", 10, "librank", NULL);
 
     do_dmesg();
@@ -278,6 +279,16 @@
     run_command("DUMPSYS", 60, "dumpsys", NULL);
 
     printf("========================================================\n");
+    printf("== Checkins\n");
+    printf("========================================================\n");
+
+    run_command("CHECKIN BATTERYSTATS", 30, "dumpsys", "batterystats", "--checkin", NULL);
+    run_command("CHECKIN MEMINFO", 30, "dumpsys", "meminfo", "--checkin", NULL);
+    run_command("CHECKIN NETSTATS", 30, "dumpsys", "netstats", "--checkin", NULL);
+    run_command("CHECKIN PROCSTATS", 30, "dumpsys", "procstats", "-c", NULL);
+    run_command("CHECKIN USAGESTATS", 30, "dumpsys", "usagestats", "-c", NULL);
+
+    printf("========================================================\n");
     printf("== Running Application Activities\n");
     printf("========================================================\n");
 
diff --git a/cmds/dumpsys/dumpsys.cpp b/cmds/dumpsys/dumpsys.cpp
index c9fcc00..ce8993d 100644
--- a/cmds/dumpsys/dumpsys.cpp
+++ b/cmds/dumpsys/dumpsys.cpp
@@ -9,7 +9,7 @@
 #include <binder/Parcel.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/TextOutput.h>
+#include <binder/TextOutput.h>
 #include <utils/Vector.h>
 
 #include <getopt.h>
@@ -39,7 +39,11 @@
 
     Vector<String16> services;
     Vector<String16> args;
-    if (argc == 1) {
+    bool showListOnly = false;
+    if ((argc == 2) && (strcmp(argv[1], "-l") == 0)) {
+        showListOnly = true;
+    }
+    if ((argc == 1) || showListOnly) {
         services = sm->listServices();
         services.sort(sort_func);
         args.add(String16("-a"));
@@ -64,6 +68,10 @@
         }
     }
 
+    if (showListOnly) {
+        return 0;
+    }
+
     for (size_t i=0; i<N; i++) {
         sp<IBinder> service = sm->checkService(services[i]);
         if (service != NULL) {
diff --git a/cmds/flatland/GLHelper.cpp b/cmds/flatland/GLHelper.cpp
index 4f7697f..89eb95f 100644
--- a/cmds/flatland/GLHelper.cpp
+++ b/cmds/flatland/GLHelper.cpp
@@ -199,8 +199,8 @@
 bool GLHelper::createNamedSurfaceTexture(GLuint name, uint32_t w, uint32_t h,
         sp<GLConsumer>* glConsumer, EGLSurface* surface) {
     sp<BufferQueue> bq = new BufferQueue(true, mGraphicBufferAlloc);
-    sp<GLConsumer> glc = new GLConsumer(name, true,
-            GL_TEXTURE_EXTERNAL_OES, false, bq);
+    sp<GLConsumer> glc = new GLConsumer(bq, name,
+            GL_TEXTURE_EXTERNAL_OES, false);
     glc->setDefaultBufferSize(w, h);
     glc->setDefaultMaxBufferCount(3);
     glc->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER);
diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index 99715d3..d6ac3d2 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -56,7 +56,7 @@
 
 static const BenchmarkDesc benchmarks[] = {
     { "16:10 Single Static Window",
-        2560, 1600, { 800, 1600, 2400 },
+        2560, 1600, { 800, 1200, 1600, 2400 },
         {
             {   // Window
                 0, staticGradient, opaque,
@@ -73,8 +73,26 @@
         },
     },
 
+    { "3:2 Single Static Window",
+        2048, 1536, { 1536 },
+        {
+            {   // Window
+                0, staticGradient, opaque,
+                0,    50,     2048,   1440,
+            },
+            {   // Status bar
+                0, staticGradient, opaque,
+                0,    0,      2048,   50,
+            },
+            {   // Navigation bar
+                0, staticGradient, opaque,
+                0,    1440,   2048,   96,
+            },
+        },
+    },
+
     { "16:10 App -> Home Transition",
-        2560, 1600, { 800, 1600, 2400 },
+        2560, 1600, { 800, 1200, 1600, 2400 },
         {
             {   // Wallpaper
                 0, staticGradient, opaque,
@@ -99,8 +117,34 @@
         },
     },
 
+    { "3:2 App -> Home Transition",
+        2048, 1536, { 1536 },
+        {
+            {   // Wallpaper
+                0, staticGradient, opaque,
+                0,    50,     2048,   1440,
+            },
+            {   // Launcher
+                0, staticGradient, blend,
+                0,    50,     2048,   1440,
+            },
+            {   // Outgoing activity
+                0, staticGradient, blendShrink,
+                20,    70,     2048,   1400,
+            },
+            {   // Status bar
+                0, staticGradient, opaque,
+                0,    0,      2048,   50,
+            },
+            {   // Navigation bar
+                0, staticGradient, opaque,
+                0,    1440,   2048,   96,
+            },
+        },
+    },
+
     { "16:10 SurfaceView -> Home Transition",
-        2560, 1600, { 800, 1600, 2400 },
+        2560, 1600, { 800, 1200, 1600, 2400 },
         {
             {   // Wallpaper
                 0, staticGradient, opaque,
@@ -128,6 +172,36 @@
             },
         },
     },
+
+    { "3:2 SurfaceView -> Home Transition",
+        2048, 1536, { 1536 },
+        {
+            {   // Wallpaper
+                0, staticGradient, opaque,
+                0,    50,     2048,   1440,
+            },
+            {   // Launcher
+                0, staticGradient, blend,
+                0,    50,     2048,   1440,
+            },
+            {   // Outgoing SurfaceView
+                0, staticGradient, blendShrink,
+                20,    70,     2048,   1400,
+            },
+            {   // Outgoing activity
+                0, staticGradient, blendShrink,
+                20,    70,     2048,   1400,
+            },
+            {   // Status bar
+                0, staticGradient, opaque,
+                0,    0,      2048,   50,
+            },
+            {   // Navigation bar
+                0, staticGradient, opaque,
+                0,    1440,   2048,   96,
+            },
+        },
+    },
 };
 
 static const ShaderDesc shaders[] = {
diff --git a/cmds/inputflinger/Android.mk b/cmds/inputflinger/Android.mk
new file mode 100644
index 0000000..b44de44
--- /dev/null
+++ b/cmds/inputflinger/Android.mk
@@ -0,0 +1,28 @@
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+	main.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+	libbinder \
+	libinputflinger \
+	libutils
+
+LOCAL_MODULE := inputflinger
+
+include $(BUILD_EXECUTABLE)
diff --git a/cmds/inputflinger/main.cpp b/cmds/inputflinger/main.cpp
new file mode 100644
index 0000000..6de7b24
--- /dev/null
+++ b/cmds/inputflinger/main.cpp
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/BinderService.h>
+#include <InputFlinger.h>
+
+using namespace android;
+
+int main(int argc, char** argv) {
+    ProcessState::self()->setThreadPoolMaxThreadCount(4);
+    BinderService<InputFlinger>::publishAndJoinThreadPool(true);
+    return 0;
+}
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c
index 8e14a2c..84ad204 100644
--- a/cmds/installd/commands.c
+++ b/cmds/installd/commands.c
@@ -108,11 +108,11 @@
     return 0;
 }
 
-int uninstall(const char *pkgname, uid_t persona)
+int uninstall(const char *pkgname, userid_t userid)
 {
     char pkgdir[PKG_PATH_MAX];
 
-    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona))
+    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userid))
         return -1;
 
     /* delete contents AND directory, no exceptions */
@@ -173,18 +173,18 @@
     return 0;
 }
 
-int delete_user_data(const char *pkgname, uid_t persona)
+int delete_user_data(const char *pkgname, userid_t userid)
 {
     char pkgdir[PKG_PATH_MAX];
 
-    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona))
+    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userid))
         return -1;
 
     /* delete contents, excluding "lib", but not the directory itself */
     return delete_dir_contents(pkgdir, 0, "lib");
 }
 
-int make_user_data(const char *pkgname, uid_t uid, uid_t persona)
+int make_user_data(const char *pkgname, uid_t uid, userid_t userid)
 {
     char pkgdir[PKG_PATH_MAX];
     char applibdir[PKG_PATH_MAX];
@@ -192,10 +192,10 @@
     struct stat libStat;
 
     // Create the data dir for the package
-    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, persona)) {
+    if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userid)) {
         return -1;
     }
-    if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, persona)) {
+    if (create_pkg_path(libsymlink, pkgname, PKG_LIB_POSTFIX, userid)) {
         ALOGE("cannot create package lib symlink origin path\n");
         return -1;
     }
@@ -262,10 +262,10 @@
     return 0;
 }
 
-int delete_persona(uid_t persona)
+int delete_user(userid_t userid)
 {
     char data_path[PKG_PATH_MAX];
-    if (create_persona_path(data_path, persona)) {
+    if (create_user_path(data_path, userid)) {
         return -1;
     }
     if (delete_dir_contents(data_path, 1, NULL)) {
@@ -273,7 +273,7 @@
     }
 
     char media_path[PATH_MAX];
-    if (create_persona_media_path(media_path, (userid_t) persona) == -1) {
+    if (create_user_media_path(media_path, userid) == -1) {
         return -1;
     }
     if (delete_dir_contents(media_path, 1, NULL) == -1) {
@@ -283,11 +283,11 @@
     return 0;
 }
 
-int delete_cache(const char *pkgname, uid_t persona)
+int delete_cache(const char *pkgname, userid_t userid)
 {
     char cachedir[PKG_PATH_MAX];
 
-    if (create_pkg_path(cachedir, pkgname, CACHE_DIR_POSTFIX, persona))
+    if (create_pkg_path(cachedir, pkgname, CACHE_DIR_POSTFIX, userid))
         return -1;
 
         /* delete contents, not the directory, no exceptions */
@@ -319,7 +319,7 @@
     cache = start_cache_collection();
 
     // Collect cache files for primary user.
-    if (create_persona_path(tmpdir, 0) == 0) {
+    if (create_user_path(tmpdir, 0) == 0) {
         //ALOGI("adding cache files from %s\n", tmpdir);
         add_cache_files(cache, tmpdir, "cache");
     }
@@ -420,7 +420,7 @@
     }
 }
 
-int get_size(const char *pkgname, int persona, const char *apkpath,
+int get_size(const char *pkgname, userid_t userid, const char *apkpath,
              const char *libdirpath, const char *fwdlock_apkpath, const char *asecpath,
              int64_t *_codesize, int64_t *_datasize, int64_t *_cachesize,
              int64_t* _asecsize)
@@ -477,7 +477,7 @@
         }
     }
 
-    if (create_pkg_path(path, pkgname, PKG_DIR_POSTFIX, persona)) {
+    if (create_pkg_path(path, pkgname, PKG_DIR_POSTFIX, userid)) {
         goto done;
     }
 
@@ -540,7 +540,6 @@
 }
 
 
-/* a simpler version of dexOptGenerateCacheFileName() */
 int create_cache_path(char path[PKG_PATH_MAX], const char *src)
 {
     char *tmp;
@@ -580,7 +579,7 @@
 }
 
 static void run_dexopt(int zip_fd, int odex_fd, const char* input_file_name,
-    const char* dexopt_flags)
+    const char* output_file_name, const char* dexopt_flags)
 {
     static const char* DEX_OPT_BIN = "/system/bin/dexopt";
     static const int MAX_INT_LEN = 12;      // '-'+10dig+'\0' -OR- 0x+8dig
@@ -590,11 +589,35 @@
     sprintf(zip_num, "%d", zip_fd);
     sprintf(odex_num, "%d", odex_fd);
 
+    ALOGV("Running %s in=%s out=%s\n", DEX_OPT_BIN, input_file_name, output_file_name);
     execl(DEX_OPT_BIN, DEX_OPT_BIN, "--zip", zip_num, odex_num, input_file_name,
         dexopt_flags, (char*) NULL);
     ALOGE("execl(%s) failed: %s\n", DEX_OPT_BIN, strerror(errno));
 }
 
+static void run_dex2oat(int zip_fd, int oat_fd, const char* input_file_name,
+    const char* output_file_name, const char* dexopt_flags)
+{
+    static const char* DEX2OAT_BIN = "/system/bin/dex2oat";
+    static const int MAX_INT_LEN = 12;      // '-'+10dig+'\0' -OR- 0x+8dig
+    char zip_fd_arg[strlen("--zip-fd=") + MAX_INT_LEN];
+    char zip_location_arg[strlen("--zip-location=") + PKG_PATH_MAX];
+    char oat_fd_arg[strlen("--oat-fd=") + MAX_INT_LEN];
+    char oat_location_arg[strlen("--oat-name=") + PKG_PATH_MAX];
+
+    sprintf(zip_fd_arg, "--zip-fd=%d", zip_fd);
+    sprintf(zip_location_arg, "--zip-location=%s", input_file_name);
+    sprintf(oat_fd_arg, "--oat-fd=%d", oat_fd);
+    sprintf(oat_location_arg, "--oat-location=%s", output_file_name);
+
+    ALOGV("Running %s in=%s out=%s\n", DEX2OAT_BIN, input_file_name, output_file_name);
+    execl(DEX2OAT_BIN, DEX2OAT_BIN,
+          zip_fd_arg, zip_location_arg,
+          oat_fd_arg, oat_location_arg,
+          (char*) NULL);
+    ALOGE("execl(%s) failed: %s\n", DEX2OAT_BIN, strerror(errno));
+}
+
 static int wait_dexopt(pid_t pid, const char* apk_path)
 {
     int status;
@@ -631,31 +654,32 @@
 {
     struct utimbuf ut;
     struct stat apk_stat, dex_stat;
-    char dex_path[PKG_PATH_MAX];
+    char out_path[PKG_PATH_MAX];
     char dexopt_flags[PROPERTY_VALUE_MAX];
+    char persist_sys_dalvik_vm_lib[PROPERTY_VALUE_MAX];
     char *end;
-    int res, zip_fd=-1, odex_fd=-1;
+    int res, zip_fd=-1, out_fd=-1;
 
-        /* Before anything else: is there a .odex file?  If so, we have
-         * pre-optimized the apk and there is nothing to do here.
-         */
     if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) {
         return -1;
     }
 
     /* platform-specific flags affecting optimization and verification */
     property_get("dalvik.vm.dexopt-flags", dexopt_flags, "");
+    ALOGV("dalvik.vm.dexopt_flags=%s\n", dexopt_flags);
 
-    strcpy(dex_path, apk_path);
-    end = strrchr(dex_path, '.');
-    if (end != NULL) {
-        strcpy(end, ".odex");
-        if (stat(dex_path, &dex_stat) == 0) {
-            return 0;
-        }
+    /* The command to run depend ones the value of persist.sys.dalvik.vm.lib */
+    property_get("persist.sys.dalvik.vm.lib", persist_sys_dalvik_vm_lib, "libdvm.so");
+
+    /* Before anything else: is there a .odex file?  If so, we have
+     * precompiled the apk and there is nothing to do here.
+     */
+    sprintf(out_path, "%s%s", apk_path, ".odex");
+    if (stat(out_path, &dex_stat) == 0) {
+        return 0;
     }
 
-    if (create_cache_path(dex_path, apk_path)) {
+    if (create_cache_path(out_path, apk_path)) {
         return -1;
     }
 
@@ -664,24 +688,24 @@
 
     zip_fd = open(apk_path, O_RDONLY, 0);
     if (zip_fd < 0) {
-        ALOGE("dexopt cannot open '%s' for input\n", apk_path);
+        ALOGE("installd cannot open '%s' for input during dexopt\n", apk_path);
         return -1;
     }
 
-    unlink(dex_path);
-    odex_fd = open(dex_path, O_RDWR | O_CREAT | O_EXCL, 0644);
-    if (odex_fd < 0) {
-        ALOGE("dexopt cannot open '%s' for output\n", dex_path);
+    unlink(out_path);
+    out_fd = open(out_path, O_RDWR | O_CREAT | O_EXCL, 0644);
+    if (out_fd < 0) {
+        ALOGE("installd cannot open '%s' for output during dexopt\n", out_path);
         goto fail;
     }
-    if (fchmod(odex_fd,
+    if (fchmod(out_fd,
                S_IRUSR|S_IWUSR|S_IRGRP |
                (is_public ? S_IROTH : 0)) < 0) {
-        ALOGE("dexopt cannot chmod '%s'\n", dex_path);
+        ALOGE("installd cannot chmod '%s' during dexopt\n", out_path);
         goto fail;
     }
-    if (fchown(odex_fd, AID_SYSTEM, uid) < 0) {
-        ALOGE("dexopt cannot chown '%s'\n", dex_path);
+    if (fchown(out_fd, AID_SYSTEM, uid) < 0) {
+        ALOGE("installd cannot chown '%s' during dexopt\n", out_path);
         goto fail;
     }
 
@@ -692,11 +716,11 @@
     if (pid == 0) {
         /* child -- drop privileges before continuing */
         if (setgid(uid) != 0) {
-            ALOGE("setgid(%d) failed during dexopt\n", uid);
+            ALOGE("setgid(%d) failed in installd during dexopt\n", uid);
             exit(64);
         }
         if (setuid(uid) != 0) {
-            ALOGE("setuid(%d) during dexopt\n", uid);
+            ALOGE("setuid(%d) failed in installd during dexopt\n", uid);
             exit(65);
         }
         // drop capabilities
@@ -709,33 +733,39 @@
             ALOGE("capset failed: %s\n", strerror(errno));
             exit(66);
         }
-        if (flock(odex_fd, LOCK_EX | LOCK_NB) != 0) {
-            ALOGE("flock(%s) failed: %s\n", dex_path, strerror(errno));
+        if (flock(out_fd, LOCK_EX | LOCK_NB) != 0) {
+            ALOGE("flock(%s) failed: %s\n", out_path, strerror(errno));
             exit(67);
         }
 
-        run_dexopt(zip_fd, odex_fd, apk_path, dexopt_flags);
+        if (strncmp(persist_sys_dalvik_vm_lib, "libdvm", 6) == 0) {
+            run_dexopt(zip_fd, out_fd, apk_path, out_path, dexopt_flags);
+        } else if (strncmp(persist_sys_dalvik_vm_lib, "libart", 6) == 0) {
+            run_dex2oat(zip_fd, out_fd, apk_path, out_path, dexopt_flags);
+        } else {
+            exit(69);   /* Unexpected persist.sys.dalvik.vm.lib value */
+        }
         exit(68);   /* only get here on exec failure */
     } else {
         res = wait_dexopt(pid, apk_path);
         if (res != 0) {
-            ALOGE("dexopt failed on '%s' res = %d\n", dex_path, res);
+            ALOGE("dexopt in='%s' out='%s' res=%d\n", apk_path, out_path, res);
             goto fail;
         }
     }
 
     ut.actime = apk_stat.st_atime;
     ut.modtime = apk_stat.st_mtime;
-    utime(dex_path, &ut);
-    
-    close(odex_fd);
+    utime(out_path, &ut);
+
+    close(out_fd);
     close(zip_fd);
     return 0;
 
 fail:
-    if (odex_fd >= 0) {
-        close(odex_fd);
-        unlink(dex_path);
+    if (out_fd >= 0) {
+        close(out_fd);
+        unlink(out_path);
     }
     if (zip_fd >= 0) {
         close(zip_fd);
diff --git a/cmds/installd/installd.c b/cmds/installd/installd.c
index c918633..1904408 100644
--- a/cmds/installd/installd.c
+++ b/cmds/installd/installd.c
@@ -83,7 +83,7 @@
     int64_t asecsize = 0;
     int res = 0;
 
-        /* pkgdir, persona, apkpath */
+        /* pkgdir, userid, apkpath */
     res = get_size(arg[0], atoi(arg[1]), arg[2], arg[3], arg[4], arg[5],
             &codesize, &datasize, &cachesize, &asecsize);
 
@@ -108,7 +108,7 @@
 
 static int do_rm_user(char **arg, char reply[REPLY_MAX])
 {
-    return delete_persona(atoi(arg[0])); /* userid */
+    return delete_user(atoi(arg[0])); /* userid */
 }
 
 static int do_movefiles(char **arg, char reply[REPLY_MAX])
@@ -198,7 +198,7 @@
     unsigned short count;
     int ret = -1;
 
-//    ALOGI("execute('%s')\n", cmd);
+    // ALOGI("execute('%s')\n", cmd);
 
         /* default reply is "" */
     reply[0] = 0;
@@ -240,7 +240,7 @@
     if (n > BUFFER_MAX) n = BUFFER_MAX;
     count = n;
 
-//    ALOGI("reply: '%s'\n", cmd);
+    // ALOGI("reply: '%s'\n", cmd);
     if (writex(s, &count, sizeof(count))) return -1;
     if (writex(s, cmd, count)) return -1;
     return 0;
diff --git a/cmds/installd/installd.h b/cmds/installd/installd.h
index fbfc876..635b07c 100644
--- a/cmds/installd/installd.h
+++ b/cmds/installd/installd.h
@@ -78,9 +78,6 @@
 #define PKG_NAME_MAX  128   /* largest allowed package name */
 #define PKG_PATH_MAX  256   /* max size of any path we use */
 
-#define PER_USER_RANGE ((uid_t)100000)   /* range of uids per user
-                                            uid = persona * PER_USER_RANGE + appid */
-
 /* data structures */
 
 typedef struct {
@@ -138,17 +135,17 @@
 int create_pkg_path(char path[PKG_PATH_MAX],
                     const char *pkgname,
                     const char *postfix,
-                    uid_t persona);
+                    userid_t userid);
 
-int create_persona_path(char path[PKG_PATH_MAX],
-                    uid_t persona);
+int create_user_path(char path[PKG_PATH_MAX],
+                    userid_t userid);
 
-int create_persona_media_path(char path[PKG_PATH_MAX], userid_t userid);
+int create_user_media_path(char path[PKG_PATH_MAX], userid_t userid);
 
 int create_move_path(char path[PKG_PATH_MAX],
                      const char* pkgname,
                      const char* leaf,
-                     uid_t persona);
+                     userid_t userid);
 
 int is_valid_package_name(const char* pkgname);
 
@@ -193,17 +190,17 @@
 /* commands.c */
 
 int install(const char *pkgname, uid_t uid, gid_t gid, const char *seinfo);
-int uninstall(const char *pkgname, uid_t persona);
+int uninstall(const char *pkgname, userid_t userid);
 int renamepkg(const char *oldpkgname, const char *newpkgname);
 int fix_uid(const char *pkgname, uid_t uid, gid_t gid);
-int delete_user_data(const char *pkgname, uid_t persona);
-int make_user_data(const char *pkgname, uid_t uid, uid_t persona);
-int delete_persona(uid_t persona);
-int delete_cache(const char *pkgname, uid_t persona);
+int delete_user_data(const char *pkgname, userid_t userid);
+int make_user_data(const char *pkgname, uid_t uid, userid_t userid);
+int delete_user(userid_t userid);
+int delete_cache(const char *pkgname, userid_t userid);
 int move_dex(const char *src, const char *dst);
 int rm_dex(const char *path);
 int protect(char *pkgname, gid_t gid);
-int get_size(const char *pkgname, int persona, const char *apkpath, const char *libdirpath,
+int get_size(const char *pkgname, userid_t userid, const char *apkpath, const char *libdirpath,
              const char *fwdlock_apkpath, const char *asecpath, int64_t *codesize,
              int64_t *datasize, int64_t *cachesize, int64_t *asecsize);
 int free_cache(int64_t free_size);
diff --git a/cmds/installd/tests/installd_utils_test.cpp b/cmds/installd/tests/installd_utils_test.cpp
index 7cb9b37..0b182af 100644
--- a/cmds/installd/tests/installd_utils_test.cpp
+++ b/cmds/installd/tests/installd_utils_test.cpp
@@ -340,7 +340,7 @@
 TEST_F(UtilsTest, CreatePersonaPath_Primary) {
     char path[PKG_PATH_MAX];
 
-    EXPECT_EQ(0, create_persona_path(path, 0))
+    EXPECT_EQ(0, create_user_path(path, 0))
             << "Should successfully build primary user path.";
 
     EXPECT_STREQ("/data/data/", path)
@@ -350,7 +350,7 @@
 TEST_F(UtilsTest, CreatePersonaPath_Secondary) {
     char path[PKG_PATH_MAX];
 
-    EXPECT_EQ(0, create_persona_path(path, 1))
+    EXPECT_EQ(0, create_user_path(path, 1))
             << "Should successfully build primary user path.";
 
     EXPECT_STREQ("/data/user/1/", path)
diff --git a/cmds/installd/utils.c b/cmds/installd/utils.c
index 625a35e..ef634c6 100644
--- a/cmds/installd/utils.c
+++ b/cmds/installd/utils.c
@@ -53,38 +53,39 @@
 
 /**
  * Create the package path name for a given package name with a postfix for
- * a certain persona. Returns 0 on success, and -1 on failure.
+ * a certain userid. Returns 0 on success, and -1 on failure.
  */
 int create_pkg_path(char path[PKG_PATH_MAX],
                     const char *pkgname,
                     const char *postfix,
-                    uid_t persona)
+                    userid_t userid)
 {
-    size_t uid_len;
-    char* persona_prefix;
-    if (persona == 0) {
-        persona_prefix = PRIMARY_USER_PREFIX;
-        uid_len = 0;
+    size_t userid_len;
+    char* userid_prefix;
+    if (userid == 0) {
+        userid_prefix = PRIMARY_USER_PREFIX;
+        userid_len = 0;
     } else {
-        persona_prefix = SECONDARY_USER_PREFIX;
-        uid_len = snprintf(NULL, 0, "%d", persona);
+        userid_prefix = SECONDARY_USER_PREFIX;
+        userid_len = snprintf(NULL, 0, "%d", userid);
     }
 
-    const size_t prefix_len = android_data_dir.len + strlen(persona_prefix) + uid_len + 1 /*slash*/;
+    const size_t prefix_len = android_data_dir.len + strlen(userid_prefix)
+            + userid_len + 1 /*slash*/;
     char prefix[prefix_len + 1];
 
     char *dst = prefix;
     size_t dst_size = sizeof(prefix);
 
     if (append_and_increment(&dst, android_data_dir.path, &dst_size) < 0
-            || append_and_increment(&dst, persona_prefix, &dst_size) < 0) {
+            || append_and_increment(&dst, userid_prefix, &dst_size) < 0) {
         ALOGE("Error building prefix for APK path");
         return -1;
     }
 
-    if (persona != 0) {
-        int ret = snprintf(dst, dst_size, "%d/", persona);
-        if (ret < 0 || (size_t) ret != uid_len + 1) {
+    if (userid != 0) {
+        int ret = snprintf(dst, dst_size, "%d/", userid);
+        if (ret < 0 || (size_t) ret != userid_len + 1) {
             ALOGW("Error appending UID to APK path");
             return -1;
         }
@@ -98,39 +99,39 @@
 }
 
 /**
- * Create the path name for user data for a certain persona.
+ * Create the path name for user data for a certain userid.
  * Returns 0 on success, and -1 on failure.
  */
-int create_persona_path(char path[PKG_PATH_MAX],
-                    uid_t persona)
+int create_user_path(char path[PKG_PATH_MAX],
+                    userid_t userid)
 {
-    size_t uid_len;
-    char* persona_prefix;
-    if (persona == 0) {
-        persona_prefix = PRIMARY_USER_PREFIX;
-        uid_len = 0;
+    size_t userid_len;
+    char* userid_prefix;
+    if (userid == 0) {
+        userid_prefix = PRIMARY_USER_PREFIX;
+        userid_len = 0;
     } else {
-        persona_prefix = SECONDARY_USER_PREFIX;
-        uid_len = snprintf(NULL, 0, "%d/", persona);
+        userid_prefix = SECONDARY_USER_PREFIX;
+        userid_len = snprintf(NULL, 0, "%d/", userid);
     }
 
     char *dst = path;
     size_t dst_size = PKG_PATH_MAX;
 
     if (append_and_increment(&dst, android_data_dir.path, &dst_size) < 0
-            || append_and_increment(&dst, persona_prefix, &dst_size) < 0) {
+            || append_and_increment(&dst, userid_prefix, &dst_size) < 0) {
         ALOGE("Error building prefix for user path");
         return -1;
     }
 
-    if (persona != 0) {
-        if (dst_size < uid_len + 1) {
+    if (userid != 0) {
+        if (dst_size < userid_len + 1) {
             ALOGE("Error building user path");
             return -1;
         }
-        int ret = snprintf(dst, dst_size, "%d/", persona);
-        if (ret < 0 || (size_t) ret != uid_len) {
-            ALOGE("Error appending persona id to path");
+        int ret = snprintf(dst, dst_size, "%d/", userid);
+        if (ret < 0 || (size_t) ret != userid_len) {
+            ALOGE("Error appending userid to path");
             return -1;
         }
     }
@@ -138,10 +139,10 @@
 }
 
 /**
- * Create the path name for media for a certain persona.
+ * Create the path name for media for a certain userid.
  * Returns 0 on success, and -1 on failure.
  */
-int create_persona_media_path(char path[PATH_MAX], userid_t userid) {
+int create_user_media_path(char path[PATH_MAX], userid_t userid) {
     if (snprintf(path, PATH_MAX, "%s%d", android_media_dir.path, userid) > PATH_MAX) {
         return -1;
     }
@@ -151,7 +152,7 @@
 int create_move_path(char path[PKG_PATH_MAX],
     const char* pkgname,
     const char* leaf,
-    uid_t persona)
+    userid_t userid)
 {
     if ((android_data_dir.len + strlen(PRIMARY_USER_PREFIX) + strlen(pkgname) + strlen(leaf) + 1)
             >= PKG_PATH_MAX) {
@@ -997,7 +998,7 @@
     char path[PATH_MAX];
 
     // Ensure /data/media/<userid> exists
-    create_persona_media_path(media_user_path, userid);
+    create_user_media_path(media_user_path, userid);
     if (fs_prepare_dir(media_user_path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) {
         return -1;
     }
diff --git a/cmds/rawbu/backup.cpp b/cmds/rawbu/backup.cpp
index 70e7b57..ff6719f 100644
--- a/cmds/rawbu/backup.cpp
+++ b/cmds/rawbu/backup.cpp
@@ -639,6 +639,12 @@
     fprintf(stderr, "options include:\n"
                     "  -h              Show this help text.\n"
                     "  -a              Backup all files.\n");
+    fprintf(stderr, "\n backup-file-path Defaults to /sdcard/backup.dat .\n"
+                    "                  On devices that emulate the sdcard, you will need to\n"
+                    "                  explicitly specify the directory it is mapped to,\n"
+                    "                  to avoid recursive backup or deletion of the backup file\n"
+                    "                  during restore.\n\n"
+                    "                  Eg. /data/media/0/backup.dat\n");
     fprintf(stderr, "\nThe %s command allows you to perform low-level\n"
                     "backup and restore of the /data partition.  This is\n"
                     "where all user data is kept, allowing for a fairly\n"
diff --git a/cmds/service/service.cpp b/cmds/service/service.cpp
index 32db83b..97fc47c 100644
--- a/cmds/service/service.cpp
+++ b/cmds/service/service.cpp
@@ -1,12 +1,23 @@
 /*
- * Command line access to services.
+ * Copyright 2013 The Android Open Source Project
  *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
- 
+
 #include <binder/Parcel.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/TextOutput.h>
+#include <binder/TextOutput.h>
 
 #include <getopt.h>
 #include <stdlib.h>
diff --git a/include/android/keycodes.h b/include/android/keycodes.h
index cf38d1a..1ca1332 100644
--- a/include/android/keycodes.h
+++ b/include/android/keycodes.h
@@ -265,6 +265,7 @@
     AKEYCODE_ASSIST          = 219,
     AKEYCODE_BRIGHTNESS_DOWN = 220,
     AKEYCODE_BRIGHTNESS_UP   = 221,
+    AKEYCODE_MEDIA_AUDIO_TRACK = 222,
 
     // NOTE: If you add a new keycode here you must also add it to several other files.
     //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
diff --git a/include/android/sensor.h b/include/android/sensor.h
index f163f18..32c5c0a 100644
--- a/include/android/sensor.h
+++ b/include/android/sensor.h
@@ -114,14 +114,20 @@
     int32_t reserved0;
     int64_t timestamp;
     union {
-        float           data[16];
-        ASensorVector   vector;
-        ASensorVector   acceleration;
-        ASensorVector   magnetic;
-        float           temperature;
-        float           distance;
-        float           light;
-        float           pressure;
+        union {
+            float           data[16];
+            ASensorVector   vector;
+            ASensorVector   acceleration;
+            ASensorVector   magnetic;
+            float           temperature;
+            float           distance;
+            float           light;
+            float           pressure;
+        };
+        union {
+            uint64_t        data[8];
+            uint64_t        step_counter;
+        } u64;
     };
     int32_t reserved1[4];
 } ASensorEvent;
diff --git a/include/binder/BinderService.h b/include/binder/BinderService.h
index 5ac36d9..ef703bd 100644
--- a/include/binder/BinderService.h
+++ b/include/binder/BinderService.h
@@ -42,19 +42,20 @@
     }
 
     static void publishAndJoinThreadPool(bool allowIsolated = false) {
-        sp<IServiceManager> sm(defaultServiceManager());
-        sm->addService(
-                String16(SERVICE::getServiceName()),
-                new SERVICE(), allowIsolated);
-        ProcessState::self()->startThreadPool();
-        ProcessState::self()->giveThreadPoolName();
-        IPCThreadState::self()->joinThreadPool();
+        publish(allowIsolated);
+        joinThreadPool();
     }
 
     static void instantiate() { publish(); }
 
-    static status_t shutdown() {
-        return NO_ERROR;
+    static status_t shutdown() { return NO_ERROR; }
+
+private:
+    static void joinThreadPool() {
+        sp<ProcessState> ps(ProcessState::self());
+        ps->startThreadPool();
+        ps->giveThreadPoolName();
+        IPCThreadState::self()->joinThreadPool();
     }
 };
 
diff --git a/include/utils/BufferedTextOutput.h b/include/binder/BufferedTextOutput.h
similarity index 98%
rename from include/utils/BufferedTextOutput.h
rename to include/binder/BufferedTextOutput.h
index 69c6240..adf3c32 100644
--- a/include/utils/BufferedTextOutput.h
+++ b/include/binder/BufferedTextOutput.h
@@ -17,7 +17,7 @@
 #ifndef ANDROID_BUFFEREDTEXTOUTPUT_H
 #define ANDROID_BUFFEREDTEXTOUTPUT_H
 
-#include <utils/TextOutput.h>
+#include <binder/TextOutput.h>
 #include <utils/threads.h>
 #include <cutils/uio.h>
 
diff --git a/include/binder/Debug.h b/include/binder/Debug.h
new file mode 100644
index 0000000..f6a3355
--- /dev/null
+++ b/include/binder/Debug.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2005 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BINDER_DEBUG_H
+#define ANDROID_BINDER_DEBUG_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+const char* stringForIndent(int32_t indentLevel);
+
+typedef void (*debugPrintFunc)(void* cookie, const char* txt);
+
+void printTypeCode(uint32_t typeCode,
+    debugPrintFunc func = 0, void* cookie = 0);
+
+void printHexData(int32_t indent, const void *buf, size_t length,
+    size_t bytesPerLine=16, int32_t singleLineBytesCutoff=16,
+    size_t alignment=0, bool cArrayStyle=false,
+    debugPrintFunc func = 0, void* cookie = 0);
+
+#ifdef __cplusplus
+}
+#endif
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_BINDER_DEBUG_H
diff --git a/include/binder/IPCThreadState.h b/include/binder/IPCThreadState.h
index 3378d97..5bc123e 100644
--- a/include/binder/IPCThreadState.h
+++ b/include/binder/IPCThreadState.h
@@ -39,8 +39,8 @@
             
             status_t            clearLastError();
 
-            int                 getCallingPid();
-            int                 getCallingUid();
+            int                 getCallingPid() const;
+            int                 getCallingUid() const;
 
             void                setStrictModePolicy(int32_t policy);
             int32_t             getStrictModePolicy() const;
@@ -51,6 +51,8 @@
             int64_t             clearCallingIdentity();
             void                restoreCallingIdentity(int64_t token);
             
+            int                 setupPolling(int* fd);
+            status_t            handlePolledCommands();
             void                flushCommands();
 
             void                joinThreadPool(bool isMain = true);
@@ -96,7 +98,9 @@
                                                      uint32_t code,
                                                      const Parcel& data,
                                                      status_t* statusBuffer);
+            status_t            getAndExecuteCommand();
             status_t            executeCommand(int32_t command);
+            void                processPendingDerefs();
             
             void                clearCaller();
             
diff --git a/include/utils/TextOutput.h b/include/binder/TextOutput.h
similarity index 96%
rename from include/utils/TextOutput.h
rename to include/binder/TextOutput.h
index de2fbbe..974a194 100644
--- a/include/utils/TextOutput.h
+++ b/include/binder/TextOutput.h
@@ -25,6 +25,9 @@
 // ---------------------------------------------------------------------------
 namespace android {
 
+class String8;
+class String16;
+
 class TextOutput
 {
 public:
@@ -76,6 +79,8 @@
 TextOutput& operator<<(TextOutput& to, double);
 TextOutput& operator<<(TextOutput& to, TextOutputManipFunc func);
 TextOutput& operator<<(TextOutput& to, const void*);
+TextOutput& operator<<(TextOutput& to, const String8& val);
+TextOutput& operator<<(TextOutput& to, const String16& val);
 
 class TypeCode 
 {
diff --git a/include/cpustats/CentralTendencyStatistics.h b/include/cpustats/CentralTendencyStatistics.h
deleted file mode 100644
index 21b6981..0000000
--- a/include/cpustats/CentralTendencyStatistics.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _CENTRAL_TENDENCY_STATISTICS_H
-#define _CENTRAL_TENDENCY_STATISTICS_H
-
-#include <math.h>
-
-// Not multithread safe
-class CentralTendencyStatistics {
-
-public:
-
-    CentralTendencyStatistics() :
-            mMean(NAN), mMedian(NAN), mMinimum(INFINITY), mMaximum(-INFINITY), mN(0), mM2(0),
-            mVariance(NAN), mVarianceKnownForN(0), mStddev(NAN), mStddevKnownForN(0) { }
-
-    ~CentralTendencyStatistics() { }
-
-    // add x to the set of samples
-    void sample(double x);
-
-    // return the arithmetic mean of all samples so far
-    double mean() const { return mMean; }
-
-    // return the minimum of all samples so far
-    double minimum() const { return mMinimum; }
-
-    // return the maximum of all samples so far
-    double maximum() const { return mMaximum; }
-
-    // return the variance of all samples so far
-    double variance() const;
-
-    // return the standard deviation of all samples so far
-    double stddev() const;
-
-    // return the number of samples added so far
-    unsigned n() const { return mN; }
-
-    // reset the set of samples to be empty
-    void reset();
-
-private:
-    double mMean;
-    double mMedian;
-    double mMinimum;
-    double mMaximum;
-    unsigned mN;    // number of samples so far
-    double mM2;
-
-    // cached variance, and n at time of caching
-    mutable double mVariance;
-    mutable unsigned mVarianceKnownForN;
-
-    // cached standard deviation, and n at time of caching
-    mutable double mStddev;
-    mutable unsigned mStddevKnownForN;
-
-};
-
-#endif // _CENTRAL_TENDENCY_STATISTICS_H
diff --git a/include/cpustats/README.txt b/include/cpustats/README.txt
deleted file mode 100644
index 14439f0..0000000
--- a/include/cpustats/README.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-This is a static library of CPU usage statistics, originally written
-for audio but most are not actually specific to audio.
-
-Requirements to be here:
- * should be related to CPU usage statistics
- * should be portable to host; avoid Android OS dependencies without a conditional
diff --git a/include/cpustats/ThreadCpuUsage.h b/include/cpustats/ThreadCpuUsage.h
deleted file mode 100644
index 9756844..0000000
--- a/include/cpustats/ThreadCpuUsage.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _THREAD_CPU_USAGE_H
-#define _THREAD_CPU_USAGE_H
-
-#include <fcntl.h>
-#include <pthread.h>
-
-namespace android {
-
-// Track CPU usage for the current thread.
-// Units are in per-thread CPU ns, as reported by
-// clock_gettime(CLOCK_THREAD_CPUTIME_ID).  Simple usage: for cyclic
-// threads where you want to measure the execution time of the whole
-// cycle, just call sampleAndEnable() at the start of each cycle.
-// For acyclic threads, or for cyclic threads where you want to measure/track
-// only part of each cycle, call enable(), disable(), and/or setEnabled()
-// to demarcate the region(s) of interest, and then call sample() periodically.
-// This class is not thread-safe for concurrent calls from multiple threads;
-// the methods of this class may only be called by the current thread
-// which constructed the object.
-
-class ThreadCpuUsage
-{
-
-public:
-    ThreadCpuUsage() :
-        mIsEnabled(false),
-        mWasEverEnabled(false),
-        mAccumulator(0),
-        // mPreviousTs
-        // mMonotonicTs
-        mMonotonicKnown(false)
-        {
-            (void) pthread_once(&sOnceControl, &init);
-            for (int i = 0; i < sKernelMax; ++i) {
-                mCurrentkHz[i] = (uint32_t) ~0;   // unknown
-            }
-        }
-
-    ~ThreadCpuUsage() { }
-
-    // Return whether currently tracking CPU usage by current thread
-    bool isEnabled() const  { return mIsEnabled; }
-
-    // Enable tracking of CPU usage by current thread;
-    // any CPU used from this point forward will be tracked.
-    // Returns the previous enabled status.
-    bool enable()       { return setEnabled(true); }
-
-    // Disable tracking of CPU usage by current thread;
-    // any CPU used from this point forward will be ignored.
-    // Returns the previous enabled status.
-    bool disable()      { return setEnabled(false); }
-
-    // Set the enabled status and return the previous enabled status.
-    // This method is intended to be used for safe nested enable/disabling.
-    bool setEnabled(bool isEnabled);
-
-    // Add a sample point, and also enable tracking if needed.
-    // If tracking has never been enabled, then this call enables tracking but
-    // does _not_ add a sample -- it is not possible to add a sample the
-    // first time because there is no previous point to subtract from.
-    // Otherwise, if tracking is enabled,
-    // then adds a sample for tracked CPU ns since the previous
-    // sample, or since the first call to sampleAndEnable(), enable(), or
-    // setEnabled(true).  If there was a previous sample but tracking is
-    // now disabled, then adds a sample for the tracked CPU ns accumulated
-    // up until the most recent disable(), resets this accumulator, and then
-    // enables tracking.  Calling this method rather than enable() followed
-    // by sample() avoids a race condition for the first sample.
-    // Returns true if the sample 'ns' is valid, or false if invalid.
-    // Note that 'ns' is an output parameter passed by reference.
-    // The caller does not need to initialize this variable.
-    // The units are CPU nanoseconds consumed by current thread.
-    bool sampleAndEnable(double& ns);
-
-    // Add a sample point, but do not
-    // change the tracking enabled status.  If tracking has either never been
-    // enabled, or has never been enabled since the last sample, then log a warning
-    // and don't add sample.  Otherwise, adds a sample for tracked CPU ns since
-    // the previous sample or since the first call to sampleAndEnable(),
-    // enable(), or setEnabled(true) if no previous sample.
-    // Returns true if the sample is valid, or false if invalid.
-    // Note that 'ns' is an output parameter passed by reference.
-    // The caller does not need to initialize this variable.
-    // The units are CPU nanoseconds consumed by current thread.
-    bool sample(double& ns);
-
-    // Return the elapsed delta wall clock ns since initial enable or reset,
-    // as reported by clock_gettime(CLOCK_MONOTONIC).
-    long long elapsed() const;
-
-    // Reset elapsed wall clock.  Has no effect on tracking or accumulator.
-    void resetElapsed();
-
-    // Return current clock frequency for specified CPU, in kHz.
-    // You can get your CPU number using sched_getcpu(2).  Note that, unless CPU affinity
-    // has been configured appropriately, the CPU number can change.
-    // Also note that, unless the CPU governor has been configured appropriately,
-    // the CPU frequency can change.  And even if the CPU frequency is locked down
-    // to a particular value, that the frequency might still be adjusted
-    // to prevent thermal overload.  Therefore you should poll for your thread's
-    // current CPU number and clock frequency periodically.
-    uint32_t getCpukHz(int cpuNum);
-
-private:
-    bool mIsEnabled;                // whether tracking is currently enabled
-    bool mWasEverEnabled;           // whether tracking was ever enabled
-    long long mAccumulator;         // accumulated thread CPU time since last sample, in ns
-    struct timespec mPreviousTs;    // most recent thread CPU time, valid only if mIsEnabled is true
-    struct timespec mMonotonicTs;   // most recent monotonic time
-    bool mMonotonicKnown;           // whether mMonotonicTs has been set
-
-    static const int MAX_CPU = 8;
-    static int sScalingFds[MAX_CPU];// file descriptor per CPU for reading scaling_cur_freq
-    uint32_t mCurrentkHz[MAX_CPU];  // current CPU frequency in kHz, not static to avoid a race
-    static pthread_once_t sOnceControl;
-    static int sKernelMax;          // like MAX_CPU, but determined at runtime == cpu/kernel_max + 1
-    static void init();             // called once at first ThreadCpuUsage construction
-    static pthread_mutex_t sMutex;  // protects sScalingFds[] after initialization
-};
-
-}   // namespace android
-
-#endif //  _THREAD_CPU_USAGE_H
diff --git a/include/gui/BufferItemConsumer.h b/include/gui/BufferItemConsumer.h
index 98b450c..0af6f8e 100644
--- a/include/gui/BufferItemConsumer.h
+++ b/include/gui/BufferItemConsumer.h
@@ -29,6 +29,8 @@
 
 namespace android {
 
+class BufferQueue;
+
 /**
  * BufferItemConsumer is a BufferQueue consumer endpoint that allows clients
  * access to the whole BufferItem entry from BufferQueue. Multiple buffers may
@@ -49,7 +51,7 @@
     // the consumer usage flags passed to the graphics allocator. The
     // bufferCount parameter specifies how many buffers can be locked for user
     // access at the same time.
-    BufferItemConsumer(uint32_t consumerUsage,
+    BufferItemConsumer(const sp<BufferQueue>& bq, uint32_t consumerUsage,
             int bufferCount = BufferQueue::MIN_UNDEQUEUED_BUFFERS,
             bool synchronousMode = false);
 
@@ -71,7 +73,8 @@
     //
     // If waitForFence is true, and the acquired BufferItem has a valid fence object,
     // acquireBuffer will wait on the fence with no timeout before returning.
-    status_t acquireBuffer(BufferItem *item, bool waitForFence = true);
+    status_t acquireBuffer(BufferItem *item, nsecs_t presentWhen,
+        bool waitForFence = true);
 
     // Returns an acquired buffer to the queue, allowing it to be reused. Since
     // only a fixed number of buffers may be acquired at a time, old buffers
diff --git a/include/gui/BufferQueue.h b/include/gui/BufferQueue.h
index 6c1b691..0143be3 100644
--- a/include/gui/BufferQueue.h
+++ b/include/gui/BufferQueue.h
@@ -39,7 +39,7 @@
     enum { NUM_BUFFER_SLOTS = 32 };
     enum { NO_CONNECTED_API = 0 };
     enum { INVALID_BUFFER_SLOT = -1 };
-    enum { STALE_BUFFER_SLOT = 1, NO_BUFFER_AVAILABLE };
+    enum { STALE_BUFFER_SLOT = 1, NO_BUFFER_AVAILABLE, PRESENT_LATER };
 
     // When in async mode we reserve two slots in order to guarantee that the
     // producer and consumer can run asynchronously.
@@ -229,7 +229,7 @@
 
     // dump our state in a String
     virtual void dump(String8& result) const;
-    virtual void dump(String8& result, const char* prefix, char* buffer, size_t SIZE) const;
+    virtual void dump(String8& result, const char* prefix) const;
 
     // public facing structure for BufferSlot
     struct BufferItem {
@@ -240,7 +240,8 @@
            mScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
            mTimestamp(0),
            mFrameNumber(0),
-           mBuf(INVALID_BUFFER_SLOT) {
+           mBuf(INVALID_BUFFER_SLOT),
+           mAcquireCalled(false) {
              mCrop.makeInvalid();
         }
         // mGraphicBuffer points to the buffer allocated for this slot, or is NULL
@@ -269,6 +270,9 @@
 
         // mFence is a fence that will signal when the buffer is idle.
         sp<Fence> mFence;
+
+        // Indicates whether this buffer has been seen by a consumer yet
+        bool mAcquireCalled;
     };
 
     // The following public functions are the consumer-facing interface
@@ -280,12 +284,18 @@
     // acquired then the BufferItem::mGraphicBuffer field of buffer is set to
     // NULL and it is assumed that the consumer still holds a reference to the
     // buffer.
-    status_t acquireBuffer(BufferItem *buffer);
+    //
+    // If presentWhen is nonzero, it indicates the time when the buffer will
+    // be displayed on screen.  If the buffer's timestamp is farther in the
+    // future, the buffer won't be acquired, and PRESENT_LATER will be
+    // returned.  The presentation time is in nanoseconds, and the time base
+    // is CLOCK_MONOTONIC.
+    status_t acquireBuffer(BufferItem *buffer, nsecs_t presentWhen);
 
     // releaseBuffer releases a buffer slot from the consumer back to the
     // BufferQueue.  This may be done while the buffer's contents are still
     // being accessed.  The fence will signal when the buffer is no longer
-    // in use.
+    // in use. frameNumber is used to indentify the exact buffer returned.
     //
     // If releaseBuffer returns STALE_BUFFER_SLOT, then the consumer must free
     // any references to the just-released buffer that it might have, as if it
@@ -294,7 +304,8 @@
     //
     // Note that the dependencies on EGL will be removed once we switch to using
     // the Android HW Sync HAL.
-    status_t releaseBuffer(int buf, EGLDisplay display, EGLSyncKHR fence,
+    status_t releaseBuffer(int buf, uint64_t frameNumber,
+            EGLDisplay display, EGLSyncKHR fence,
             const sp<Fence>& releaseFence);
 
     // consumerConnect connects a consumer to the BufferQueue.  Only one
@@ -368,10 +379,6 @@
     // all slots.
     void freeAllBuffersLocked();
 
-    // freeAllBuffersExceptHeadLocked frees the GraphicBuffer and sync
-    // resources for all slots except the head of mQueue.
-    void freeAllBuffersExceptHeadLocked();
-
     // drainQueueLocked waits for the buffer queue to empty if we're in
     // synchronous mode, or returns immediately otherwise. It returns NO_INIT
     // if the BufferQueue is abandoned (consumer disconnected) or disconnected
@@ -410,20 +417,20 @@
     // connected, mDequeueCondition must be broadcast.
     int getMaxBufferCountLocked() const;
 
+    // stillTracking returns true iff the buffer item is still being tracked
+    // in one of the slots.
+    bool stillTracking(const BufferItem *item) const;
+
     struct BufferSlot {
 
         BufferSlot()
         : mEglDisplay(EGL_NO_DISPLAY),
           mBufferState(BufferSlot::FREE),
           mRequestBufferCalled(false),
-          mTransform(0),
-          mScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
-          mTimestamp(0),
           mFrameNumber(0),
           mEglFence(EGL_NO_SYNC_KHR),
           mAcquireCalled(false),
           mNeedsCleanupOnRelease(false) {
-            mCrop.makeInvalid();
         }
 
         // mGraphicBuffer points to the buffer allocated for this slot or is NULL
@@ -482,21 +489,6 @@
         // needed but useful for debugging and catching producer bugs.
         bool mRequestBufferCalled;
 
-        // mCrop is the current crop rectangle for this buffer slot.
-        Rect mCrop;
-
-        // mTransform is the current transform flags for this buffer slot.
-        // (example: NATIVE_WINDOW_TRANSFORM_ROT_90)
-        uint32_t mTransform;
-
-        // mScalingMode is the current scaling mode for this buffer slot.
-        // (example: NATIVE_WINDOW_SCALING_MODE_FREEZE)
-        uint32_t mScalingMode;
-
-        // mTimestamp is the current timestamp for this buffer slot. This gets
-        // to set by queueBuffer each time this slot is queued.
-        int64_t mTimestamp;
-
         // mFrameNumber is the number of the queued frame for this slot.  This
         // is used to dequeue buffers in LRU order (useful because buffers
         // may be released before their release fence is signaled).
@@ -592,7 +584,7 @@
     mutable Condition mDequeueCondition;
 
     // mQueue is a FIFO of queued buffers used in synchronous mode
-    typedef Vector<int> Fifo;
+    typedef Vector<BufferItem> Fifo;
     Fifo mQueue;
 
     // mAbandoned indicates that the BufferQueue will no longer be used to
@@ -613,7 +605,7 @@
     mutable Mutex mMutex;
 
     // mFrameCounter is the free running counter, incremented on every
-    // successful queueBuffer call.
+    // successful queueBuffer call, and buffer allocation.
     uint64_t mFrameCounter;
 
     // mBufferHasBeenQueued is true once a buffer has been queued.  It is
diff --git a/include/gui/ConsumerBase.h b/include/gui/ConsumerBase.h
index 8a7545d..42b84cc 100644
--- a/include/gui/ConsumerBase.h
+++ b/include/gui/ConsumerBase.h
@@ -73,7 +73,7 @@
     // their state to the dump by overriding the dumpLocked method, which is
     // called by these methods after locking the mutex.
     void dump(String8& result) const;
-    void dump(String8& result, const char* prefix, char* buffer, size_t SIZE) const;
+    void dump(String8& result, const char* prefix) const;
 
     // setFrameAvailableListener sets the listener object that will be notified
     // when a new frame becomes available.
@@ -143,8 +143,7 @@
     // should call ConsumerBase::dumpLocked.
     //
     // This method must be called with mMutex locked.
-    virtual void dumpLocked(String8& result, const char* prefix, char* buffer,
-            size_t size) const;
+    virtual void dumpLocked(String8& result, const char* prefix) const;
 
     // acquireBufferLocked fetches the next buffer from the BufferQueue and
     // updates the buffer slot for the buffer returned.
@@ -153,7 +152,8 @@
     // initialization that must take place the first time a buffer is assigned
     // to a slot.  If it is overridden the derived class's implementation must
     // call ConsumerBase::acquireBufferLocked.
-    virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item);
+    virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item,
+        nsecs_t presentWhen);
 
     // releaseBufferLocked relinquishes control over a buffer, returning that
     // control to the BufferQueue.
@@ -161,17 +161,23 @@
     // Derived classes should override this method to perform any cleanup that
     // must take place when a buffer is released back to the BufferQueue.  If
     // it is overridden the derived class's implementation must call
-    // ConsumerBase::releaseBufferLocked.
-    virtual status_t releaseBufferLocked(int buf, EGLDisplay display,
-           EGLSyncKHR eglFence);
+    // ConsumerBase::releaseBufferLocked.e
+    virtual status_t releaseBufferLocked(int slot,
+            const sp<GraphicBuffer> graphicBuffer,
+            EGLDisplay display, EGLSyncKHR eglFence);
+
+    // returns true iff the slot still has the graphicBuffer in it.
+    bool stillTracking(int slot, const sp<GraphicBuffer> graphicBuffer);
 
     // addReleaseFence* adds the sync points associated with a fence to the set
     // of sync points that must be reached before the buffer in the given slot
     // may be used after the slot has been released.  This should be called by
     // derived classes each time some asynchronous work is kicked off that
     // references the buffer.
-    status_t addReleaseFence(int slot, const sp<Fence>& fence);
-    status_t addReleaseFenceLocked(int slot, const sp<Fence>& fence);
+    status_t addReleaseFence(int slot,
+            const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence);
+    status_t addReleaseFenceLocked(int slot,
+            const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence);
 
     // Slot contains the information and object references that
     // ConsumerBase maintains about a BufferQueue buffer slot.
@@ -185,6 +191,9 @@
         // overwritten. The buffer can be dequeued before the fence signals;
         // the producer is responsible for delaying writes until it signals.
         sp<Fence> mFence;
+
+        // the frame number of the last acquired frame for this slot
+        uint64_t mFrameNumber;
     };
 
     // mSlots stores the buffers that have been allocated by the BufferQueue
diff --git a/include/gui/CpuConsumer.h b/include/gui/CpuConsumer.h
index bf9918e..5f1e369 100644
--- a/include/gui/CpuConsumer.h
+++ b/include/gui/CpuConsumer.h
@@ -25,10 +25,11 @@
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
-#define ANDROID_GRAPHICS_CPUCONSUMER_JNI_ID "mCpuConsumer"
 
 namespace android {
 
+class BufferQueue;
+
 /**
  * CpuConsumer is a BufferQueue consumer endpoint that allows direct CPU
  * access to the underlying gralloc buffers provided by BufferQueue. Multiple
@@ -65,7 +66,8 @@
 
     // Create a new CPU consumer. The maxLockedBuffers parameter specifies
     // how many buffers can be locked for user access at the same time.
-    CpuConsumer(uint32_t maxLockedBuffers, bool synchronousMode = true);
+    CpuConsumer(const sp<BufferQueue>& bq,
+            uint32_t maxLockedBuffers, bool synchronousMode = true);
 
     virtual ~CpuConsumer();
 
@@ -73,6 +75,18 @@
     // log messages.
     void setName(const String8& name);
 
+    // setDefaultBufferSize is used to set the size of buffers returned by
+    // requestBuffers when a width and height of zero is requested.
+    // A call to setDefaultBufferSize() may trigger requestBuffers() to
+    // be called from the client. Default size is 1x1.
+    status_t setDefaultBufferSize(uint32_t width, uint32_t height);
+
+    // setDefaultBufferFormat allows CpuConsumer's BufferQueue to create buffers
+    // of a defaultFormat if no format is specified by producer. Formats are
+    // enumerated in graphics.h; the initial default is
+    // HAL_PIXEL_FORMAT_RGBA_8888.
+    status_t setDefaultBufferFormat(uint32_t defaultFormat);
+
     // Gets the next graphics buffer from the producer and locks it for CPU use,
     // filling out the passed-in locked buffer structure with the native pointer
     // and metadata. Returns BAD_VALUE if no new buffer is available, and
diff --git a/include/gui/GLConsumer.h b/include/gui/GLConsumer.h
index 1ef54f5..65544bd 100644
--- a/include/gui/GLConsumer.h
+++ b/include/gui/GLConsumer.h
@@ -88,9 +88,6 @@
     GLConsumer(const sp<BufferQueue>& bq,
             GLuint tex, GLenum texTarget = GL_TEXTURE_EXTERNAL_OES,
             bool useFenceSync = true);
-    GLConsumer(GLuint tex, bool allowSynchronousMode = true,
-            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, bool useFenceSync = true,
-            const sp<BufferQueue> &bufferQueue = 0);
 
     // updateTexImage acquires the most recently queued buffer, and sets the
     // image contents of the target texture to it.
@@ -236,20 +233,22 @@
 
     // dumpLocked overrides the ConsumerBase method to dump GLConsumer-
     // specific info in addition to the ConsumerBase behavior.
-    virtual void dumpLocked(String8& result, const char* prefix, char* buffer,
-           size_t size) const;
+    virtual void dumpLocked(String8& result, const char* prefix) const;
 
     // acquireBufferLocked overrides the ConsumerBase method to update the
     // mEglSlots array in addition to the ConsumerBase behavior.
-    virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item);
+    virtual status_t acquireBufferLocked(BufferQueue::BufferItem *item,
+        nsecs_t presentWhen);
 
     // releaseBufferLocked overrides the ConsumerBase method to update the
     // mEglSlots array in addition to the ConsumerBase.
-    virtual status_t releaseBufferLocked(int buf, EGLDisplay display,
-           EGLSyncKHR eglFence);
+    virtual status_t releaseBufferLocked(int slot,
+            const sp<GraphicBuffer> graphicBuffer,
+            EGLDisplay display, EGLSyncKHR eglFence);
 
-    status_t releaseBufferLocked(int buf, EGLSyncKHR eglFence) {
-        return releaseBufferLocked(buf, mEglDisplay, eglFence);
+    status_t releaseBufferLocked(int slot,
+            const sp<GraphicBuffer> graphicBuffer, EGLSyncKHR eglFence) {
+        return releaseBufferLocked(slot, graphicBuffer, mEglDisplay, eglFence);
     }
 
     static bool isExternalFormat(uint32_t format);
diff --git a/include/input/IInputFlinger.h b/include/input/IInputFlinger.h
new file mode 100644
index 0000000..79ff12a
--- /dev/null
+++ b/include/input/IInputFlinger.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_IINPUT_FLINGER_H
+#define _LIBINPUT_IINPUT_FLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+/*
+ * This class defines the Binder IPC interface for accessing various
+ * InputFlinger features.
+ */
+class IInputFlinger : public IInterface {
+public:
+    DECLARE_META_INTERFACE(InputFlinger);
+
+    virtual status_t doSomething() = 0;
+};
+
+
+/**
+ * Binder implementation.
+ */
+class BnInputFlinger : public BnInterface<IInputFlinger> {
+public:
+    enum {
+        DO_SOMETHING_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
+    };
+
+    virtual status_t onTransact(uint32_t code, const Parcel& data,
+            Parcel* reply, uint32_t flags = 0);
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_IINPUT_FLINGER_H
diff --git a/include/input/Input.h b/include/input/Input.h
new file mode 100644
index 0000000..e778076
--- /dev/null
+++ b/include/input/Input.h
@@ -0,0 +1,620 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_INPUT_H
+#define _LIBINPUT_INPUT_H
+
+/**
+ * Native input event structures.
+ */
+
+#include <android/input.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+#include <utils/Timers.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+/*
+ * Additional private constants not defined in ndk/ui/input.h.
+ */
+enum {
+    /* Signifies that the key is being predispatched */
+    AKEY_EVENT_FLAG_PREDISPATCH = 0x20000000,
+
+    /* Private control to determine when an app is tracking a key sequence. */
+    AKEY_EVENT_FLAG_START_TRACKING = 0x40000000,
+
+    /* Key event is inconsistent with previously sent key events. */
+    AKEY_EVENT_FLAG_TAINTED = 0x80000000,
+};
+
+enum {
+    /* Motion event is inconsistent with previously sent motion events. */
+    AMOTION_EVENT_FLAG_TAINTED = 0x80000000,
+};
+
+enum {
+    /* Used when a motion event is not associated with any display.
+     * Typically used for non-pointer events. */
+    ADISPLAY_ID_NONE = -1,
+
+    /* The default display id. */
+    ADISPLAY_ID_DEFAULT = 0,
+};
+
+enum {
+    /*
+     * Indicates that an input device has switches.
+     * This input source flag is hidden from the API because switches are only used by the system
+     * and applications have no way to interact with them.
+     */
+    AINPUT_SOURCE_SWITCH = 0x80000000,
+};
+
+/*
+ * SystemUiVisibility constants from View.
+ */
+enum {
+    ASYSTEM_UI_VISIBILITY_STATUS_BAR_VISIBLE = 0,
+    ASYSTEM_UI_VISIBILITY_STATUS_BAR_HIDDEN = 0x00000001,
+};
+
+/*
+ * Maximum number of pointers supported per motion event.
+ * Smallest number of pointers is 1.
+ * (We want at least 10 but some touch controllers obstensibly configured for 10 pointers
+ * will occasionally emit 11.  There is not much harm making this constant bigger.)
+ */
+#define MAX_POINTERS 16
+
+/*
+ * Maximum pointer id value supported in a motion event.
+ * Smallest pointer id is 0.
+ * (This is limited by our use of BitSet32 to track pointer assignments.)
+ */
+#define MAX_POINTER_ID 31
+
+/*
+ * Declare a concrete type for the NDK's input event forward declaration.
+ */
+struct AInputEvent {
+    virtual ~AInputEvent() { }
+};
+
+/*
+ * Declare a concrete type for the NDK's input device forward declaration.
+ */
+struct AInputDevice {
+    virtual ~AInputDevice() { }
+};
+
+
+namespace android {
+
+#ifdef HAVE_ANDROID_OS
+class Parcel;
+#endif
+
+/*
+ * Flags that flow alongside events in the input dispatch system to help with certain
+ * policy decisions such as waking from device sleep.
+ *
+ * These flags are also defined in frameworks/base/core/java/android/view/WindowManagerPolicy.java.
+ */
+enum {
+    /* These flags originate in RawEvents and are generally set in the key map.
+     * NOTE: If you edit these flags, also edit labels in KeycodeLabels.h. */
+
+    POLICY_FLAG_WAKE = 0x00000001,
+    POLICY_FLAG_WAKE_DROPPED = 0x00000002,
+    POLICY_FLAG_SHIFT = 0x00000004,
+    POLICY_FLAG_CAPS_LOCK = 0x00000008,
+    POLICY_FLAG_ALT = 0x00000010,
+    POLICY_FLAG_ALT_GR = 0x00000020,
+    POLICY_FLAG_MENU = 0x00000040,
+    POLICY_FLAG_LAUNCHER = 0x00000080,
+    POLICY_FLAG_VIRTUAL = 0x00000100,
+    POLICY_FLAG_FUNCTION = 0x00000200,
+
+    POLICY_FLAG_RAW_MASK = 0x0000ffff,
+
+    /* These flags are set by the input dispatcher. */
+
+    // Indicates that the input event was injected.
+    POLICY_FLAG_INJECTED = 0x01000000,
+
+    // Indicates that the input event is from a trusted source such as a directly attached
+    // input device or an application with system-wide event injection permission.
+    POLICY_FLAG_TRUSTED = 0x02000000,
+
+    // Indicates that the input event has passed through an input filter.
+    POLICY_FLAG_FILTERED = 0x04000000,
+
+    // Disables automatic key repeating behavior.
+    POLICY_FLAG_DISABLE_KEY_REPEAT = 0x08000000,
+
+    /* These flags are set by the input reader policy as it intercepts each event. */
+
+    // Indicates that the screen was off when the event was received and the event
+    // should wake the device.
+    POLICY_FLAG_WOKE_HERE = 0x10000000,
+
+    // Indicates that the screen was dim when the event was received and the event
+    // should brighten the device.
+    POLICY_FLAG_BRIGHT_HERE = 0x20000000,
+
+    // Indicates that the event should be dispatched to applications.
+    // The input event should still be sent to the InputDispatcher so that it can see all
+    // input events received include those that it will not deliver.
+    POLICY_FLAG_PASS_TO_USER = 0x40000000,
+};
+
+/*
+ * Pointer coordinate data.
+ */
+struct PointerCoords {
+    enum { MAX_AXES = 14 }; // 14 so that sizeof(PointerCoords) == 64
+
+    // Bitfield of axes that are present in this structure.
+    uint64_t bits;
+
+    // Values of axes that are stored in this structure packed in order by axis id
+    // for each axis that is present in the structure according to 'bits'.
+    float values[MAX_AXES];
+
+    inline void clear() {
+        bits = 0;
+    }
+
+    float getAxisValue(int32_t axis) const;
+    status_t setAxisValue(int32_t axis, float value);
+
+    void scale(float scale);
+
+    inline float getX() const {
+        return getAxisValue(AMOTION_EVENT_AXIS_X);
+    }
+
+    inline float getY() const {
+        return getAxisValue(AMOTION_EVENT_AXIS_Y);
+    }
+
+#ifdef HAVE_ANDROID_OS
+    status_t readFromParcel(Parcel* parcel);
+    status_t writeToParcel(Parcel* parcel) const;
+#endif
+
+    bool operator==(const PointerCoords& other) const;
+    inline bool operator!=(const PointerCoords& other) const {
+        return !(*this == other);
+    }
+
+    void copyFrom(const PointerCoords& other);
+
+private:
+    void tooManyAxes(int axis);
+};
+
+/*
+ * Pointer property data.
+ */
+struct PointerProperties {
+    // The id of the pointer.
+    int32_t id;
+
+    // The pointer tool type.
+    int32_t toolType;
+
+    inline void clear() {
+        id = -1;
+        toolType = 0;
+    }
+
+    bool operator==(const PointerProperties& other) const;
+    inline bool operator!=(const PointerProperties& other) const {
+        return !(*this == other);
+    }
+
+    void copyFrom(const PointerProperties& other);
+};
+
+/*
+ * Input events.
+ */
+class InputEvent : public AInputEvent {
+public:
+    virtual ~InputEvent() { }
+
+    virtual int32_t getType() const = 0;
+
+    inline int32_t getDeviceId() const { return mDeviceId; }
+
+    inline int32_t getSource() const { return mSource; }
+
+    inline void setSource(int32_t source) { mSource = source; }
+
+protected:
+    void initialize(int32_t deviceId, int32_t source);
+    void initialize(const InputEvent& from);
+
+    int32_t mDeviceId;
+    int32_t mSource;
+};
+
+/*
+ * Key events.
+ */
+class KeyEvent : public InputEvent {
+public:
+    virtual ~KeyEvent() { }
+
+    virtual int32_t getType() const { return AINPUT_EVENT_TYPE_KEY; }
+
+    inline int32_t getAction() const { return mAction; }
+
+    inline int32_t getFlags() const { return mFlags; }
+
+    inline void setFlags(int32_t flags) { mFlags = flags; }
+
+    inline int32_t getKeyCode() const { return mKeyCode; }
+
+    inline int32_t getScanCode() const { return mScanCode; }
+
+    inline int32_t getMetaState() const { return mMetaState; }
+
+    inline int32_t getRepeatCount() const { return mRepeatCount; }
+
+    inline nsecs_t getDownTime() const { return mDownTime; }
+
+    inline nsecs_t getEventTime() const { return mEventTime; }
+
+    // Return true if this event may have a default action implementation.
+    static bool hasDefaultAction(int32_t keyCode);
+    bool hasDefaultAction() const;
+
+    // Return true if this event represents a system key.
+    static bool isSystemKey(int32_t keyCode);
+    bool isSystemKey() const;
+    
+    void initialize(
+            int32_t deviceId,
+            int32_t source,
+            int32_t action,
+            int32_t flags,
+            int32_t keyCode,
+            int32_t scanCode,
+            int32_t metaState,
+            int32_t repeatCount,
+            nsecs_t downTime,
+            nsecs_t eventTime);
+    void initialize(const KeyEvent& from);
+
+protected:
+    int32_t mAction;
+    int32_t mFlags;
+    int32_t mKeyCode;
+    int32_t mScanCode;
+    int32_t mMetaState;
+    int32_t mRepeatCount;
+    nsecs_t mDownTime;
+    nsecs_t mEventTime;
+};
+
+/*
+ * Motion events.
+ */
+class MotionEvent : public InputEvent {
+public:
+    virtual ~MotionEvent() { }
+
+    virtual int32_t getType() const { return AINPUT_EVENT_TYPE_MOTION; }
+
+    inline int32_t getAction() const { return mAction; }
+
+    inline int32_t getActionMasked() const { return mAction & AMOTION_EVENT_ACTION_MASK; }
+
+    inline int32_t getActionIndex() const {
+        return (mAction & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)
+                >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+    }
+
+    inline void setAction(int32_t action) { mAction = action; }
+
+    inline int32_t getFlags() const { return mFlags; }
+
+    inline void setFlags(int32_t flags) { mFlags = flags; }
+
+    inline int32_t getEdgeFlags() const { return mEdgeFlags; }
+
+    inline void setEdgeFlags(int32_t edgeFlags) { mEdgeFlags = edgeFlags; }
+
+    inline int32_t getMetaState() const { return mMetaState; }
+
+    inline void setMetaState(int32_t metaState) { mMetaState = metaState; }
+
+    inline int32_t getButtonState() const { return mButtonState; }
+
+    inline float getXOffset() const { return mXOffset; }
+
+    inline float getYOffset() const { return mYOffset; }
+
+    inline float getXPrecision() const { return mXPrecision; }
+
+    inline float getYPrecision() const { return mYPrecision; }
+
+    inline nsecs_t getDownTime() const { return mDownTime; }
+
+    inline void setDownTime(nsecs_t downTime) { mDownTime = downTime; }
+
+    inline size_t getPointerCount() const { return mPointerProperties.size(); }
+
+    inline const PointerProperties* getPointerProperties(size_t pointerIndex) const {
+        return &mPointerProperties[pointerIndex];
+    }
+
+    inline int32_t getPointerId(size_t pointerIndex) const {
+        return mPointerProperties[pointerIndex].id;
+    }
+
+    inline int32_t getToolType(size_t pointerIndex) const {
+        return mPointerProperties[pointerIndex].toolType;
+    }
+
+    inline nsecs_t getEventTime() const { return mSampleEventTimes[getHistorySize()]; }
+
+    const PointerCoords* getRawPointerCoords(size_t pointerIndex) const;
+
+    float getRawAxisValue(int32_t axis, size_t pointerIndex) const;
+
+    inline float getRawX(size_t pointerIndex) const {
+        return getRawAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
+    }
+
+    inline float getRawY(size_t pointerIndex) const {
+        return getRawAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
+    }
+
+    float getAxisValue(int32_t axis, size_t pointerIndex) const;
+
+    inline float getX(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
+    }
+
+    inline float getY(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
+    }
+
+    inline float getPressure(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pointerIndex);
+    }
+
+    inline float getSize(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_SIZE, pointerIndex);
+    }
+
+    inline float getTouchMajor(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex);
+    }
+
+    inline float getTouchMinor(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex);
+    }
+
+    inline float getToolMajor(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex);
+    }
+
+    inline float getToolMinor(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex);
+    }
+
+    inline float getOrientation(size_t pointerIndex) const {
+        return getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex);
+    }
+
+    inline size_t getHistorySize() const { return mSampleEventTimes.size() - 1; }
+
+    inline nsecs_t getHistoricalEventTime(size_t historicalIndex) const {
+        return mSampleEventTimes[historicalIndex];
+    }
+
+    const PointerCoords* getHistoricalRawPointerCoords(
+            size_t pointerIndex, size_t historicalIndex) const;
+
+    float getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
+            size_t historicalIndex) const;
+
+    inline float getHistoricalRawX(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalRawAxisValue(
+                AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalRawY(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalRawAxisValue(
+                AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
+    }
+
+    float getHistoricalAxisValue(int32_t axis, size_t pointerIndex, size_t historicalIndex) const;
+
+    inline float getHistoricalX(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalY(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalPressure(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_PRESSURE, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalSize(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_SIZE, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalTouchMajor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalTouchMinor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalToolMajor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalToolMinor(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex, historicalIndex);
+    }
+
+    inline float getHistoricalOrientation(size_t pointerIndex, size_t historicalIndex) const {
+        return getHistoricalAxisValue(
+                AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex, historicalIndex);
+    }
+
+    ssize_t findPointerIndex(int32_t pointerId) const;
+
+    void initialize(
+            int32_t deviceId,
+            int32_t source,
+            int32_t action,
+            int32_t flags,
+            int32_t edgeFlags,
+            int32_t metaState,
+            int32_t buttonState,
+            float xOffset,
+            float yOffset,
+            float xPrecision,
+            float yPrecision,
+            nsecs_t downTime,
+            nsecs_t eventTime,
+            size_t pointerCount,
+            const PointerProperties* pointerProperties,
+            const PointerCoords* pointerCoords);
+
+    void copyFrom(const MotionEvent* other, bool keepHistory);
+
+    void addSample(
+            nsecs_t eventTime,
+            const PointerCoords* pointerCoords);
+
+    void offsetLocation(float xOffset, float yOffset);
+
+    void scale(float scaleFactor);
+
+    // Apply 3x3 perspective matrix transformation.
+    // Matrix is in row-major form and compatible with SkMatrix.
+    void transform(const float matrix[9]);
+
+#ifdef HAVE_ANDROID_OS
+    status_t readFromParcel(Parcel* parcel);
+    status_t writeToParcel(Parcel* parcel) const;
+#endif
+
+    static bool isTouchEvent(int32_t source, int32_t action);
+    inline bool isTouchEvent() const {
+        return isTouchEvent(mSource, mAction);
+    }
+
+    // Low-level accessors.
+    inline const PointerProperties* getPointerProperties() const {
+        return mPointerProperties.array();
+    }
+    inline const nsecs_t* getSampleEventTimes() const { return mSampleEventTimes.array(); }
+    inline const PointerCoords* getSamplePointerCoords() const {
+            return mSamplePointerCoords.array();
+    }
+
+protected:
+    int32_t mAction;
+    int32_t mFlags;
+    int32_t mEdgeFlags;
+    int32_t mMetaState;
+    int32_t mButtonState;
+    float mXOffset;
+    float mYOffset;
+    float mXPrecision;
+    float mYPrecision;
+    nsecs_t mDownTime;
+    Vector<PointerProperties> mPointerProperties;
+    Vector<nsecs_t> mSampleEventTimes;
+    Vector<PointerCoords> mSamplePointerCoords;
+};
+
+/*
+ * Input event factory.
+ */
+class InputEventFactoryInterface {
+protected:
+    virtual ~InputEventFactoryInterface() { }
+
+public:
+    InputEventFactoryInterface() { }
+
+    virtual KeyEvent* createKeyEvent() = 0;
+    virtual MotionEvent* createMotionEvent() = 0;
+};
+
+/*
+ * A simple input event factory implementation that uses a single preallocated instance
+ * of each type of input event that are reused for each request.
+ */
+class PreallocatedInputEventFactory : public InputEventFactoryInterface {
+public:
+    PreallocatedInputEventFactory() { }
+    virtual ~PreallocatedInputEventFactory() { }
+
+    virtual KeyEvent* createKeyEvent() { return & mKeyEvent; }
+    virtual MotionEvent* createMotionEvent() { return & mMotionEvent; }
+
+private:
+    KeyEvent mKeyEvent;
+    MotionEvent mMotionEvent;
+};
+
+/*
+ * An input event factory implementation that maintains a pool of input events.
+ */
+class PooledInputEventFactory : public InputEventFactoryInterface {
+public:
+    PooledInputEventFactory(size_t maxPoolSize = 20);
+    virtual ~PooledInputEventFactory();
+
+    virtual KeyEvent* createKeyEvent();
+    virtual MotionEvent* createMotionEvent();
+
+    void recycle(InputEvent* event);
+
+private:
+    const size_t mMaxPoolSize;
+
+    Vector<KeyEvent*> mKeyEventPool;
+    Vector<MotionEvent*> mMotionEventPool;
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_INPUT_H
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
new file mode 100644
index 0000000..4672ad4
--- /dev/null
+++ b/include/input/InputDevice.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_INPUT_DEVICE_H
+#define _LIBINPUT_INPUT_DEVICE_H
+
+#include <input/Input.h>
+#include <input/KeyCharacterMap.h>
+
+namespace android {
+
+/*
+ * Identifies a device.
+ */
+struct InputDeviceIdentifier {
+    inline InputDeviceIdentifier() :
+            bus(0), vendor(0), product(0), version(0) {
+    }
+
+    // Information provided by the kernel.
+    String8 name;
+    String8 location;
+    String8 uniqueId;
+    uint16_t bus;
+    uint16_t vendor;
+    uint16_t product;
+    uint16_t version;
+
+    // A composite input device descriptor string that uniquely identifies the device
+    // even across reboots or reconnections.  The value of this field is used by
+    // upper layers of the input system to associate settings with individual devices.
+    // It is hashed from whatever kernel provided information is available.
+    // Ideally, the way this value is computed should not change between Android releases
+    // because that would invalidate persistent settings that rely on it.
+    String8 descriptor;
+};
+
+/*
+ * Describes the characteristics and capabilities of an input device.
+ */
+class InputDeviceInfo {
+public:
+    InputDeviceInfo();
+    InputDeviceInfo(const InputDeviceInfo& other);
+    ~InputDeviceInfo();
+
+    struct MotionRange {
+        int32_t axis;
+        uint32_t source;
+        float min;
+        float max;
+        float flat;
+        float fuzz;
+        float resolution;
+    };
+
+    void initialize(int32_t id, int32_t generation, const InputDeviceIdentifier& identifier,
+            const String8& alias, bool isExternal);
+
+    inline int32_t getId() const { return mId; }
+    inline int32_t getGeneration() const { return mGeneration; }
+    inline const InputDeviceIdentifier& getIdentifier() const { return mIdentifier; }
+    inline const String8& getAlias() const { return mAlias; }
+    inline const String8& getDisplayName() const {
+        return mAlias.isEmpty() ? mIdentifier.name : mAlias;
+    }
+    inline bool isExternal() const { return mIsExternal; }
+    inline uint32_t getSources() const { return mSources; }
+
+    const MotionRange* getMotionRange(int32_t axis, uint32_t source) const;
+
+    void addSource(uint32_t source);
+    void addMotionRange(int32_t axis, uint32_t source,
+            float min, float max, float flat, float fuzz, float resolution);
+    void addMotionRange(const MotionRange& range);
+
+    inline void setKeyboardType(int32_t keyboardType) { mKeyboardType = keyboardType; }
+    inline int32_t getKeyboardType() const { return mKeyboardType; }
+
+    inline void setKeyCharacterMap(const sp<KeyCharacterMap>& value) {
+        mKeyCharacterMap = value;
+    }
+
+    inline sp<KeyCharacterMap> getKeyCharacterMap() const {
+        return mKeyCharacterMap;
+    }
+
+    inline void setVibrator(bool hasVibrator) { mHasVibrator = hasVibrator; }
+    inline bool hasVibrator() const { return mHasVibrator; }
+
+    inline const Vector<MotionRange>& getMotionRanges() const {
+        return mMotionRanges;
+    }
+
+private:
+    int32_t mId;
+    int32_t mGeneration;
+    InputDeviceIdentifier mIdentifier;
+    String8 mAlias;
+    bool mIsExternal;
+    uint32_t mSources;
+    int32_t mKeyboardType;
+    sp<KeyCharacterMap> mKeyCharacterMap;
+    bool mHasVibrator;
+
+    Vector<MotionRange> mMotionRanges;
+};
+
+/* Types of input device configuration files. */
+enum InputDeviceConfigurationFileType {
+    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION = 0,     /* .idc file */
+    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_LAYOUT = 1,        /* .kl file */
+    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_CHARACTER_MAP = 2, /* .kcm file */
+};
+
+/*
+ * Gets the path of an input device configuration file, if one is available.
+ * Considers both system provided and user installed configuration files.
+ *
+ * The device identifier is used to construct several default configuration file
+ * names to try based on the device name, vendor, product, and version.
+ *
+ * Returns an empty string if not found.
+ */
+extern String8 getInputDeviceConfigurationFilePathByDeviceIdentifier(
+        const InputDeviceIdentifier& deviceIdentifier,
+        InputDeviceConfigurationFileType type);
+
+/*
+ * Gets the path of an input device configuration file, if one is available.
+ * Considers both system provided and user installed configuration files.
+ *
+ * The name is case-sensitive and is used to construct the filename to resolve.
+ * All characters except 'a'-'z', 'A'-'Z', '0'-'9', '-', and '_' are replaced by underscores.
+ *
+ * Returns an empty string if not found.
+ */
+extern String8 getInputDeviceConfigurationFilePathByName(
+        const String8& name, InputDeviceConfigurationFileType type);
+
+} // namespace android
+
+#endif // _LIBINPUT_INPUT_DEVICE_H
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
new file mode 100644
index 0000000..609b679
--- /dev/null
+++ b/include/input/InputTransport.h
@@ -0,0 +1,443 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_INPUT_TRANSPORT_H
+#define _LIBINPUT_INPUT_TRANSPORT_H
+
+/**
+ * Native input transport.
+ *
+ * The InputChannel provides a mechanism for exchanging InputMessage structures across processes.
+ *
+ * The InputPublisher and InputConsumer each handle one end-point of an input channel.
+ * The InputPublisher is used by the input dispatcher to send events to the application.
+ * The InputConsumer is used by the application to receive events from the input dispatcher.
+ */
+
+#include <input/Input.h>
+#include <utils/Errors.h>
+#include <utils/Timers.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <utils/BitSet.h>
+
+namespace android {
+
+/*
+ * Intermediate representation used to send input events and related signals.
+ */
+struct InputMessage {
+    enum {
+        TYPE_KEY = 1,
+        TYPE_MOTION = 2,
+        TYPE_FINISHED = 3,
+    };
+
+    struct Header {
+        uint32_t type;
+        uint32_t padding; // 8 byte alignment for the body that follows
+    } header;
+
+    union Body {
+        struct Key {
+            uint32_t seq;
+            nsecs_t eventTime;
+            int32_t deviceId;
+            int32_t source;
+            int32_t action;
+            int32_t flags;
+            int32_t keyCode;
+            int32_t scanCode;
+            int32_t metaState;
+            int32_t repeatCount;
+            nsecs_t downTime;
+
+            inline size_t size() const {
+                return sizeof(Key);
+            }
+        } key;
+
+        struct Motion {
+            uint32_t seq;
+            nsecs_t eventTime;
+            int32_t deviceId;
+            int32_t source;
+            int32_t action;
+            int32_t flags;
+            int32_t metaState;
+            int32_t buttonState;
+            int32_t edgeFlags;
+            nsecs_t downTime;
+            float xOffset;
+            float yOffset;
+            float xPrecision;
+            float yPrecision;
+            size_t pointerCount;
+            struct Pointer {
+                PointerProperties properties;
+                PointerCoords coords;
+            } pointers[MAX_POINTERS];
+
+            int32_t getActionId() const {
+                uint32_t index = (action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)
+                        >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+                return pointers[index].properties.id;
+            }
+
+            inline size_t size() const {
+                return sizeof(Motion) - sizeof(Pointer) * MAX_POINTERS
+                        + sizeof(Pointer) * pointerCount;
+            }
+        } motion;
+
+        struct Finished {
+            uint32_t seq;
+            bool handled;
+
+            inline size_t size() const {
+                return sizeof(Finished);
+            }
+        } finished;
+    } body;
+
+    bool isValid(size_t actualSize) const;
+    size_t size() const;
+};
+
+/*
+ * An input channel consists of a local unix domain socket used to send and receive
+ * input messages across processes.  Each channel has a descriptive name for debugging purposes.
+ *
+ * Each endpoint has its own InputChannel object that specifies its file descriptor.
+ *
+ * The input channel is closed when all references to it are released.
+ */
+class InputChannel : public RefBase {
+protected:
+    virtual ~InputChannel();
+
+public:
+    InputChannel(const String8& name, int fd);
+
+    /* Creates a pair of input channels.
+     *
+     * Returns OK on success.
+     */
+    static status_t openInputChannelPair(const String8& name,
+            sp<InputChannel>& outServerChannel, sp<InputChannel>& outClientChannel);
+
+    inline String8 getName() const { return mName; }
+    inline int getFd() const { return mFd; }
+
+    /* Sends a message to the other endpoint.
+     *
+     * If the channel is full then the message is guaranteed not to have been sent at all.
+     * Try again after the consumer has sent a finished signal indicating that it has
+     * consumed some of the pending messages from the channel.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if the channel is full.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t sendMessage(const InputMessage* msg);
+
+    /* Receives a message sent by the other endpoint.
+     *
+     * If there is no message present, try again after poll() indicates that the fd
+     * is readable.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if there is no message present.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t receiveMessage(InputMessage* msg);
+
+    /* Returns a new object that has a duplicate of this channel's fd. */
+    sp<InputChannel> dup() const;
+
+private:
+    String8 mName;
+    int mFd;
+};
+
+/*
+ * Publishes input events to an input channel.
+ */
+class InputPublisher {
+public:
+    /* Creates a publisher associated with an input channel. */
+    explicit InputPublisher(const sp<InputChannel>& channel);
+
+    /* Destroys the publisher and releases its input channel. */
+    ~InputPublisher();
+
+    /* Gets the underlying input channel. */
+    inline sp<InputChannel> getChannel() { return mChannel; }
+
+    /* Publishes a key event to the input channel.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if the channel is full.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Returns BAD_VALUE if seq is 0.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t publishKeyEvent(
+            uint32_t seq,
+            int32_t deviceId,
+            int32_t source,
+            int32_t action,
+            int32_t flags,
+            int32_t keyCode,
+            int32_t scanCode,
+            int32_t metaState,
+            int32_t repeatCount,
+            nsecs_t downTime,
+            nsecs_t eventTime);
+
+    /* Publishes a motion event to the input channel.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if the channel is full.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Returns BAD_VALUE if seq is 0 or if pointerCount is less than 1 or greater than MAX_POINTERS.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t publishMotionEvent(
+            uint32_t seq,
+            int32_t deviceId,
+            int32_t source,
+            int32_t action,
+            int32_t flags,
+            int32_t edgeFlags,
+            int32_t metaState,
+            int32_t buttonState,
+            float xOffset,
+            float yOffset,
+            float xPrecision,
+            float yPrecision,
+            nsecs_t downTime,
+            nsecs_t eventTime,
+            size_t pointerCount,
+            const PointerProperties* pointerProperties,
+            const PointerCoords* pointerCoords);
+
+    /* Receives the finished signal from the consumer in reply to the original dispatch signal.
+     * If a signal was received, returns the message sequence number,
+     * and whether the consumer handled the message.
+     *
+     * The returned sequence number is never 0 unless the operation failed.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if there is no signal present.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t receiveFinishedSignal(uint32_t* outSeq, bool* outHandled);
+
+private:
+    sp<InputChannel> mChannel;
+};
+
+/*
+ * Consumes input events from an input channel.
+ */
+class InputConsumer {
+public:
+    /* Creates a consumer associated with an input channel. */
+    explicit InputConsumer(const sp<InputChannel>& channel);
+
+    /* Destroys the consumer and releases its input channel. */
+    ~InputConsumer();
+
+    /* Gets the underlying input channel. */
+    inline sp<InputChannel> getChannel() { return mChannel; }
+
+    /* Consumes an input event from the input channel and copies its contents into
+     * an InputEvent object created using the specified factory.
+     *
+     * Tries to combine a series of move events into larger batches whenever possible.
+     *
+     * If consumeBatches is false, then defers consuming pending batched events if it
+     * is possible for additional samples to be added to them later.  Call hasPendingBatch()
+     * to determine whether a pending batch is available to be consumed.
+     *
+     * If consumeBatches is true, then events are still batched but they are consumed
+     * immediately as soon as the input channel is exhausted.
+     *
+     * The frameTime parameter specifies the time when the current display frame started
+     * rendering in the CLOCK_MONOTONIC time base, or -1 if unknown.
+     *
+     * The returned sequence number is never 0 unless the operation failed.
+     *
+     * Returns OK on success.
+     * Returns WOULD_BLOCK if there is no event present.
+     * Returns DEAD_OBJECT if the channel's peer has been closed.
+     * Returns NO_MEMORY if the event could not be created.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t consume(InputEventFactoryInterface* factory, bool consumeBatches,
+            nsecs_t frameTime, uint32_t* outSeq, InputEvent** outEvent);
+
+    /* Sends a finished signal to the publisher to inform it that the message
+     * with the specified sequence number has finished being process and whether
+     * the message was handled by the consumer.
+     *
+     * Returns OK on success.
+     * Returns BAD_VALUE if seq is 0.
+     * Other errors probably indicate that the channel is broken.
+     */
+    status_t sendFinishedSignal(uint32_t seq, bool handled);
+
+    /* Returns true if there is a deferred event waiting.
+     *
+     * Should be called after calling consume() to determine whether the consumer
+     * has a deferred event to be processed.  Deferred events are somewhat special in
+     * that they have already been removed from the input channel.  If the input channel
+     * becomes empty, the client may need to do extra work to ensure that it processes
+     * the deferred event despite the fact that the input channel's file descriptor
+     * is not readable.
+     *
+     * One option is simply to call consume() in a loop until it returns WOULD_BLOCK.
+     * This guarantees that all deferred events will be processed.
+     *
+     * Alternately, the caller can call hasDeferredEvent() to determine whether there is
+     * a deferred event waiting and then ensure that its event loop wakes up at least
+     * one more time to consume the deferred event.
+     */
+    bool hasDeferredEvent() const;
+
+    /* Returns true if there is a pending batch.
+     *
+     * Should be called after calling consume() with consumeBatches == false to determine
+     * whether consume() should be called again later on with consumeBatches == true.
+     */
+    bool hasPendingBatch() const;
+
+private:
+    // True if touch resampling is enabled.
+    const bool mResampleTouch;
+
+    // The input channel.
+    sp<InputChannel> mChannel;
+
+    // The current input message.
+    InputMessage mMsg;
+
+    // True if mMsg contains a valid input message that was deferred from the previous
+    // call to consume and that still needs to be handled.
+    bool mMsgDeferred;
+
+    // Batched motion events per device and source.
+    struct Batch {
+        Vector<InputMessage> samples;
+    };
+    Vector<Batch> mBatches;
+
+    // Touch state per device and source, only for sources of class pointer.
+    struct History {
+        nsecs_t eventTime;
+        BitSet32 idBits;
+        int32_t idToIndex[MAX_POINTER_ID + 1];
+        PointerCoords pointers[MAX_POINTERS];
+
+        void initializeFrom(const InputMessage* msg) {
+            eventTime = msg->body.motion.eventTime;
+            idBits.clear();
+            for (size_t i = 0; i < msg->body.motion.pointerCount; i++) {
+                uint32_t id = msg->body.motion.pointers[i].properties.id;
+                idBits.markBit(id);
+                idToIndex[id] = i;
+                pointers[i].copyFrom(msg->body.motion.pointers[i].coords);
+            }
+        }
+
+        const PointerCoords& getPointerById(uint32_t id) const {
+            return pointers[idToIndex[id]];
+        }
+    };
+    struct TouchState {
+        int32_t deviceId;
+        int32_t source;
+        size_t historyCurrent;
+        size_t historySize;
+        History history[2];
+        History lastResample;
+
+        void initialize(int32_t deviceId, int32_t source) {
+            this->deviceId = deviceId;
+            this->source = source;
+            historyCurrent = 0;
+            historySize = 0;
+            lastResample.eventTime = 0;
+            lastResample.idBits.clear();
+        }
+
+        void addHistory(const InputMessage* msg) {
+            historyCurrent ^= 1;
+            if (historySize < 2) {
+                historySize += 1;
+            }
+            history[historyCurrent].initializeFrom(msg);
+        }
+
+        const History* getHistory(size_t index) const {
+            return &history[(historyCurrent + index) & 1];
+        }
+    };
+    Vector<TouchState> mTouchStates;
+
+    // Chain of batched sequence numbers.  When multiple input messages are combined into
+    // a batch, we append a record here that associates the last sequence number in the
+    // batch with the previous one.  When the finished signal is sent, we traverse the
+    // chain to individually finish all input messages that were part of the batch.
+    struct SeqChain {
+        uint32_t seq;   // sequence number of batched input message
+        uint32_t chain; // sequence number of previous batched input message
+    };
+    Vector<SeqChain> mSeqChains;
+
+    status_t consumeBatch(InputEventFactoryInterface* factory,
+            nsecs_t frameTime, uint32_t* outSeq, InputEvent** outEvent);
+    status_t consumeSamples(InputEventFactoryInterface* factory,
+            Batch& batch, size_t count, uint32_t* outSeq, InputEvent** outEvent);
+
+    void updateTouchState(InputMessage* msg);
+    void rewriteMessage(const TouchState& state, InputMessage* msg);
+    void resampleTouchState(nsecs_t frameTime, MotionEvent* event,
+            const InputMessage *next);
+
+    ssize_t findBatch(int32_t deviceId, int32_t source) const;
+    ssize_t findTouchState(int32_t deviceId, int32_t source) const;
+
+    status_t sendUnchainedFinishedSignal(uint32_t seq, bool handled);
+
+    static void initializeKeyEvent(KeyEvent* event, const InputMessage* msg);
+    static void initializeMotionEvent(MotionEvent* event, const InputMessage* msg);
+    static void addSample(MotionEvent* event, const InputMessage* msg);
+    static bool canAddSample(const Batch& batch, const InputMessage* msg);
+    static ssize_t findSampleNoLaterThan(const Batch& batch, nsecs_t time);
+    static bool shouldResampleTool(int32_t toolType);
+
+    static bool isTouchResamplingEnabled();
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_INPUT_TRANSPORT_H
diff --git a/include/input/KeyCharacterMap.h b/include/input/KeyCharacterMap.h
new file mode 100644
index 0000000..e70666a
--- /dev/null
+++ b/include/input/KeyCharacterMap.h
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_KEY_CHARACTER_MAP_H
+#define _LIBINPUT_KEY_CHARACTER_MAP_H
+
+#include <stdint.h>
+
+#if HAVE_ANDROID_OS
+#include <binder/IBinder.h>
+#endif
+
+#include <input/Input.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Tokenizer.h>
+#include <utils/String8.h>
+#include <utils/Unicode.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+/**
+ * Describes a mapping from Android key codes to characters.
+ * Also specifies other functions of the keyboard such as the keyboard type
+ * and key modifier semantics.
+ *
+ * This object is immutable after it has been loaded.
+ */
+class KeyCharacterMap : public RefBase {
+public:
+    enum KeyboardType {
+        KEYBOARD_TYPE_UNKNOWN = 0,
+        KEYBOARD_TYPE_NUMERIC = 1,
+        KEYBOARD_TYPE_PREDICTIVE = 2,
+        KEYBOARD_TYPE_ALPHA = 3,
+        KEYBOARD_TYPE_FULL = 4,
+        KEYBOARD_TYPE_SPECIAL_FUNCTION = 5,
+        KEYBOARD_TYPE_OVERLAY = 6,
+    };
+
+    enum Format {
+        // Base keyboard layout, may contain device-specific options, such as "type" declaration.
+        FORMAT_BASE = 0,
+        // Overlay keyboard layout, more restrictive, may be published by applications,
+        // cannot override device-specific options.
+        FORMAT_OVERLAY = 1,
+        // Either base or overlay layout ok.
+        FORMAT_ANY = 2,
+    };
+
+    // Substitute key code and meta state for fallback action.
+    struct FallbackAction {
+        int32_t keyCode;
+        int32_t metaState;
+    };
+
+    /* Loads a key character map from a file. */
+    static status_t load(const String8& filename, Format format, sp<KeyCharacterMap>* outMap);
+
+    /* Loads a key character map from its string contents. */
+    static status_t loadContents(const String8& filename,
+            const char* contents, Format format, sp<KeyCharacterMap>* outMap);
+
+    /* Combines a base key character map and an overlay. */
+    static sp<KeyCharacterMap> combine(const sp<KeyCharacterMap>& base,
+            const sp<KeyCharacterMap>& overlay);
+
+    /* Returns an empty key character map. */
+    static sp<KeyCharacterMap> empty();
+
+    /* Gets the keyboard type. */
+    int32_t getKeyboardType() const;
+
+    /* Gets the primary character for this key as in the label physically printed on it.
+     * Returns 0 if none (eg. for non-printing keys). */
+    char16_t getDisplayLabel(int32_t keyCode) const;
+
+    /* Gets the Unicode character for the number or symbol generated by the key
+     * when the keyboard is used as a dialing pad.
+     * Returns 0 if no number or symbol is generated.
+     */
+    char16_t getNumber(int32_t keyCode) const;
+
+    /* Gets the Unicode character generated by the key and meta key modifiers.
+     * Returns 0 if no character is generated.
+     */
+    char16_t getCharacter(int32_t keyCode, int32_t metaState) const;
+
+    /* Gets the fallback action to use by default if the application does not
+     * handle the specified key.
+     * Returns true if an action was available, false if none.
+     */
+    bool getFallbackAction(int32_t keyCode, int32_t metaState,
+            FallbackAction* outFallbackAction) const;
+
+    /* Gets the first matching Unicode character that can be generated by the key,
+     * preferring the one with the specified meta key modifiers.
+     * Returns 0 if no matching character is generated.
+     */
+    char16_t getMatch(int32_t keyCode, const char16_t* chars,
+            size_t numChars, int32_t metaState) const;
+
+    /* Gets a sequence of key events that could plausibly generate the specified
+     * character sequence.  Returns false if some of the characters cannot be generated.
+     */
+    bool getEvents(int32_t deviceId, const char16_t* chars, size_t numChars,
+            Vector<KeyEvent>& outEvents) const;
+
+    /* Maps a scan code and usage code to a key code, in case this key map overrides
+     * the mapping in some way. */
+    status_t mapKey(int32_t scanCode, int32_t usageCode, int32_t* outKeyCode) const;
+
+#if HAVE_ANDROID_OS
+    /* Reads a key map from a parcel. */
+    static sp<KeyCharacterMap> readFromParcel(Parcel* parcel);
+
+    /* Writes a key map to a parcel. */
+    void writeToParcel(Parcel* parcel) const;
+#endif
+
+protected:
+    virtual ~KeyCharacterMap();
+
+private:
+    struct Behavior {
+        Behavior();
+        Behavior(const Behavior& other);
+
+        /* The next behavior in the list, or NULL if none. */
+        Behavior* next;
+
+        /* The meta key modifiers for this behavior. */
+        int32_t metaState;
+
+        /* The character to insert. */
+        char16_t character;
+
+        /* The fallback keycode if the key is not handled. */
+        int32_t fallbackKeyCode;
+    };
+
+    struct Key {
+        Key();
+        Key(const Key& other);
+        ~Key();
+
+        /* The single character label printed on the key, or 0 if none. */
+        char16_t label;
+
+        /* The number or symbol character generated by the key, or 0 if none. */
+        char16_t number;
+
+        /* The list of key behaviors sorted from most specific to least specific
+         * meta key binding. */
+        Behavior* firstBehavior;
+    };
+
+    class Parser {
+        enum State {
+            STATE_TOP = 0,
+            STATE_KEY = 1,
+        };
+
+        enum {
+            PROPERTY_LABEL = 1,
+            PROPERTY_NUMBER = 2,
+            PROPERTY_META = 3,
+        };
+
+        struct Property {
+            inline Property(int32_t property = 0, int32_t metaState = 0) :
+                    property(property), metaState(metaState) { }
+
+            int32_t property;
+            int32_t metaState;
+        };
+
+        KeyCharacterMap* mMap;
+        Tokenizer* mTokenizer;
+        Format mFormat;
+        State mState;
+        int32_t mKeyCode;
+
+    public:
+        Parser(KeyCharacterMap* map, Tokenizer* tokenizer, Format format);
+        ~Parser();
+        status_t parse();
+
+    private:
+        status_t parseType();
+        status_t parseMap();
+        status_t parseMapKey();
+        status_t parseKey();
+        status_t parseKeyProperty();
+        status_t finishKey(Key* key);
+        status_t parseModifier(const String8& token, int32_t* outMetaState);
+        status_t parseCharacterLiteral(char16_t* outCharacter);
+    };
+
+    static sp<KeyCharacterMap> sEmpty;
+
+    KeyedVector<int32_t, Key*> mKeys;
+    int mType;
+
+    KeyedVector<int32_t, int32_t> mKeysByScanCode;
+    KeyedVector<int32_t, int32_t> mKeysByUsageCode;
+
+    KeyCharacterMap();
+    KeyCharacterMap(const KeyCharacterMap& other);
+
+    bool getKey(int32_t keyCode, const Key** outKey) const;
+    bool getKeyBehavior(int32_t keyCode, int32_t metaState,
+            const Key** outKey, const Behavior** outBehavior) const;
+    static bool matchesMetaState(int32_t eventMetaState, int32_t behaviorMetaState);
+
+    bool findKey(char16_t ch, int32_t* outKeyCode, int32_t* outMetaState) const;
+
+    static status_t load(Tokenizer* tokenizer, Format format, sp<KeyCharacterMap>* outMap);
+
+    static void addKey(Vector<KeyEvent>& outEvents,
+            int32_t deviceId, int32_t keyCode, int32_t metaState, bool down, nsecs_t time);
+    static void addMetaKeys(Vector<KeyEvent>& outEvents,
+            int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+            int32_t* currentMetaState);
+    static bool addSingleEphemeralMetaKey(Vector<KeyEvent>& outEvents,
+            int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+            int32_t keyCode, int32_t keyMetaState,
+            int32_t* currentMetaState);
+    static void addDoubleEphemeralMetaKey(Vector<KeyEvent>& outEvents,
+            int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+            int32_t leftKeyCode, int32_t leftKeyMetaState,
+            int32_t rightKeyCode, int32_t rightKeyMetaState,
+            int32_t eitherKeyMetaState,
+            int32_t* currentMetaState);
+    static void addLockedMetaKey(Vector<KeyEvent>& outEvents,
+            int32_t deviceId, int32_t metaState, nsecs_t time,
+            int32_t keyCode, int32_t keyMetaState,
+            int32_t* currentMetaState);
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_KEY_CHARACTER_MAP_H
diff --git a/include/input/KeyLayoutMap.h b/include/input/KeyLayoutMap.h
new file mode 100644
index 0000000..eec11cf
--- /dev/null
+++ b/include/input/KeyLayoutMap.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_KEY_LAYOUT_MAP_H
+#define _LIBINPUT_KEY_LAYOUT_MAP_H
+
+#include <stdint.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Tokenizer.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct AxisInfo {
+    enum Mode {
+        // Axis value is reported directly.
+        MODE_NORMAL = 0,
+        // Axis value should be inverted before reporting.
+        MODE_INVERT = 1,
+        // Axis value should be split into two axes
+        MODE_SPLIT = 2,
+    };
+
+    // Axis mode.
+    Mode mode;
+
+    // Axis id.
+    // When split, this is the axis used for values smaller than the split position.
+    int32_t axis;
+
+    // When split, this is the axis used for values after higher than the split position.
+    int32_t highAxis;
+
+    // The split value, or 0 if not split.
+    int32_t splitValue;
+
+    // The flat value, or -1 if none.
+    int32_t flatOverride;
+
+    AxisInfo() : mode(MODE_NORMAL), axis(-1), highAxis(-1), splitValue(0), flatOverride(-1) {
+    }
+};
+
+/**
+ * Describes a mapping from keyboard scan codes and joystick axes to Android key codes and axes.
+ *
+ * This object is immutable after it has been loaded.
+ */
+class KeyLayoutMap : public RefBase {
+public:
+    static status_t load(const String8& filename, sp<KeyLayoutMap>* outMap);
+
+    status_t mapKey(int32_t scanCode, int32_t usageCode,
+            int32_t* outKeyCode, uint32_t* outFlags) const;
+    status_t findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const;
+
+    status_t mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const;
+
+protected:
+    virtual ~KeyLayoutMap();
+
+private:
+    struct Key {
+        int32_t keyCode;
+        uint32_t flags;
+    };
+
+    KeyedVector<int32_t, Key> mKeysByScanCode;
+    KeyedVector<int32_t, Key> mKeysByUsageCode;
+    KeyedVector<int32_t, AxisInfo> mAxes;
+
+    KeyLayoutMap();
+
+    const Key* getKey(int32_t scanCode, int32_t usageCode) const;
+
+    class Parser {
+        KeyLayoutMap* mMap;
+        Tokenizer* mTokenizer;
+
+    public:
+        Parser(KeyLayoutMap* map, Tokenizer* tokenizer);
+        ~Parser();
+        status_t parse();
+
+    private:
+        status_t parseKey();
+        status_t parseAxis();
+    };
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_KEY_LAYOUT_MAP_H
diff --git a/include/input/Keyboard.h b/include/input/Keyboard.h
new file mode 100644
index 0000000..846cb0c
--- /dev/null
+++ b/include/input/Keyboard.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_KEYBOARD_H
+#define _LIBINPUT_KEYBOARD_H
+
+#include <input/Input.h>
+#include <input/InputDevice.h>
+#include <utils/Errors.h>
+#include <utils/String8.h>
+#include <utils/PropertyMap.h>
+
+namespace android {
+
+enum {
+    /* Device id of the built in keyboard. */
+    DEVICE_ID_BUILT_IN_KEYBOARD = 0,
+
+    /* Device id of a generic virtual keyboard with a full layout that can be used
+     * to synthesize key events. */
+    DEVICE_ID_VIRTUAL_KEYBOARD = -1,
+};
+
+class KeyLayoutMap;
+class KeyCharacterMap;
+
+/**
+ * Loads the key layout map and key character map for a keyboard device.
+ */
+class KeyMap {
+public:
+    String8 keyLayoutFile;
+    sp<KeyLayoutMap> keyLayoutMap;
+
+    String8 keyCharacterMapFile;
+    sp<KeyCharacterMap> keyCharacterMap;
+
+    KeyMap();
+    ~KeyMap();
+
+    status_t load(const InputDeviceIdentifier& deviceIdenfier,
+            const PropertyMap* deviceConfiguration);
+
+    inline bool haveKeyLayout() const {
+        return !keyLayoutFile.isEmpty();
+    }
+
+    inline bool haveKeyCharacterMap() const {
+        return !keyCharacterMapFile.isEmpty();
+    }
+
+    inline bool isComplete() const {
+        return haveKeyLayout() && haveKeyCharacterMap();
+    }
+
+private:
+    bool probeKeyMap(const InputDeviceIdentifier& deviceIdentifier, const String8& name);
+    status_t loadKeyLayout(const InputDeviceIdentifier& deviceIdentifier, const String8& name);
+    status_t loadKeyCharacterMap(const InputDeviceIdentifier& deviceIdentifier,
+            const String8& name);
+    String8 getPath(const InputDeviceIdentifier& deviceIdentifier,
+            const String8& name, InputDeviceConfigurationFileType type);
+};
+
+/**
+ * Returns true if the keyboard is eligible for use as a built-in keyboard.
+ */
+extern bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentifier,
+        const PropertyMap* deviceConfiguration, const KeyMap* keyMap);
+
+/**
+ * Gets a key code by its short form label, eg. "HOME".
+ * Returns 0 if unknown.
+ */
+extern int32_t getKeyCodeByLabel(const char* label);
+
+/**
+ * Gets a key flag by its short form label, eg. "WAKE".
+ * Returns 0 if unknown.
+ */
+extern uint32_t getKeyFlagByLabel(const char* label);
+
+/**
+ * Gets a axis by its short form label, eg. "X".
+ * Returns -1 if unknown.
+ */
+extern int32_t getAxisByLabel(const char* label);
+
+/**
+ * Gets a axis label by its id.
+ * Returns NULL if unknown.
+ */
+extern const char* getAxisLabel(int32_t axisId);
+
+/**
+ * Updates a meta state field when a key is pressed or released.
+ */
+extern int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState);
+
+/**
+ * Returns true if a key is a meta key like ALT or CAPS_LOCK.
+ */
+extern bool isMetaKey(int32_t keyCode);
+
+} // namespace android
+
+#endif // _LIBINPUT_KEYBOARD_H
diff --git a/include/input/KeycodeLabels.h b/include/input/KeycodeLabels.h
index 1e91ea8..c64c5d8 100644
--- a/include/input/KeycodeLabels.h
+++ b/include/input/KeycodeLabels.h
@@ -1,6 +1,322 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #ifndef _LIBINPUT_KEYCODE_LABELS_H
 #define _LIBINPUT_KEYCODE_LABELS_H
 
-#include <androidfw/KeycodeLabels.h>
+#include <android/keycodes.h>
+
+struct KeycodeLabel {
+    const char *literal;
+    int value;
+};
+
+static const KeycodeLabel KEYCODES[] = {
+    { "SOFT_LEFT", 1 },
+    { "SOFT_RIGHT", 2 },
+    { "HOME", 3 },
+    { "BACK", 4 },
+    { "CALL", 5 },
+    { "ENDCALL", 6 },
+    { "0", 7 },
+    { "1", 8 },
+    { "2", 9 },
+    { "3", 10 },
+    { "4", 11 },
+    { "5", 12 },
+    { "6", 13 },
+    { "7", 14 },
+    { "8", 15 },
+    { "9", 16 },
+    { "STAR", 17 },
+    { "POUND", 18 },
+    { "DPAD_UP", 19 },
+    { "DPAD_DOWN", 20 },
+    { "DPAD_LEFT", 21 },
+    { "DPAD_RIGHT", 22 },
+    { "DPAD_CENTER", 23 },
+    { "VOLUME_UP", 24 },
+    { "VOLUME_DOWN", 25 },
+    { "POWER", 26 },
+    { "CAMERA", 27 },
+    { "CLEAR", 28 },
+    { "A", 29 },
+    { "B", 30 },
+    { "C", 31 },
+    { "D", 32 },
+    { "E", 33 },
+    { "F", 34 },
+    { "G", 35 },
+    { "H", 36 },
+    { "I", 37 },
+    { "J", 38 },
+    { "K", 39 },
+    { "L", 40 },
+    { "M", 41 },
+    { "N", 42 },
+    { "O", 43 },
+    { "P", 44 },
+    { "Q", 45 },
+    { "R", 46 },
+    { "S", 47 },
+    { "T", 48 },
+    { "U", 49 },
+    { "V", 50 },
+    { "W", 51 },
+    { "X", 52 },
+    { "Y", 53 },
+    { "Z", 54 },
+    { "COMMA", 55 },
+    { "PERIOD", 56 },
+    { "ALT_LEFT", 57 },
+    { "ALT_RIGHT", 58 },
+    { "SHIFT_LEFT", 59 },
+    { "SHIFT_RIGHT", 60 },
+    { "TAB", 61 },
+    { "SPACE", 62 },
+    { "SYM", 63 },
+    { "EXPLORER", 64 },
+    { "ENVELOPE", 65 },
+    { "ENTER", 66 },
+    { "DEL", 67 },
+    { "GRAVE", 68 },
+    { "MINUS", 69 },
+    { "EQUALS", 70 },
+    { "LEFT_BRACKET", 71 },
+    { "RIGHT_BRACKET", 72 },
+    { "BACKSLASH", 73 },
+    { "SEMICOLON", 74 },
+    { "APOSTROPHE", 75 },
+    { "SLASH", 76 },
+    { "AT", 77 },
+    { "NUM", 78 },
+    { "HEADSETHOOK", 79 },
+    { "FOCUS", 80 },
+    { "PLUS", 81 },
+    { "MENU", 82 },
+    { "NOTIFICATION", 83 },
+    { "SEARCH", 84 },
+    { "MEDIA_PLAY_PAUSE", 85 },
+    { "MEDIA_STOP", 86 },
+    { "MEDIA_NEXT", 87 },
+    { "MEDIA_PREVIOUS", 88 },
+    { "MEDIA_REWIND", 89 },
+    { "MEDIA_FAST_FORWARD", 90 },
+    { "MUTE", 91 },
+    { "PAGE_UP", 92 },
+    { "PAGE_DOWN", 93 },
+    { "PICTSYMBOLS", 94 },
+    { "SWITCH_CHARSET", 95 },
+    { "BUTTON_A", 96 },
+    { "BUTTON_B", 97 },
+    { "BUTTON_C", 98 },
+    { "BUTTON_X", 99 },
+    { "BUTTON_Y", 100 },
+    { "BUTTON_Z", 101 },
+    { "BUTTON_L1", 102 },
+    { "BUTTON_R1", 103 },
+    { "BUTTON_L2", 104 },
+    { "BUTTON_R2", 105 },
+    { "BUTTON_THUMBL", 106 },
+    { "BUTTON_THUMBR", 107 },
+    { "BUTTON_START", 108 },
+    { "BUTTON_SELECT", 109 },
+    { "BUTTON_MODE", 110 },
+    { "ESCAPE", 111 },
+    { "FORWARD_DEL", 112 },
+    { "CTRL_LEFT", 113 },
+    { "CTRL_RIGHT", 114 },
+    { "CAPS_LOCK", 115 },
+    { "SCROLL_LOCK", 116 },
+    { "META_LEFT", 117 },
+    { "META_RIGHT", 118 },
+    { "FUNCTION", 119 },
+    { "SYSRQ", 120 },
+    { "BREAK", 121 },
+    { "MOVE_HOME", 122 },
+    { "MOVE_END", 123 },
+    { "INSERT", 124 },
+    { "FORWARD", 125 },
+    { "MEDIA_PLAY", 126 },
+    { "MEDIA_PAUSE", 127 },
+    { "MEDIA_CLOSE", 128 },
+    { "MEDIA_EJECT", 129 },
+    { "MEDIA_RECORD", 130 },
+    { "F1", 131 },
+    { "F2", 132 },
+    { "F3", 133 },
+    { "F4", 134 },
+    { "F5", 135 },
+    { "F6", 136 },
+    { "F7", 137 },
+    { "F8", 138 },
+    { "F9", 139 },
+    { "F10", 140 },
+    { "F11", 141 },
+    { "F12", 142 },
+    { "NUM_LOCK", 143 },
+    { "NUMPAD_0", 144 },
+    { "NUMPAD_1", 145 },
+    { "NUMPAD_2", 146 },
+    { "NUMPAD_3", 147 },
+    { "NUMPAD_4", 148 },
+    { "NUMPAD_5", 149 },
+    { "NUMPAD_6", 150 },
+    { "NUMPAD_7", 151 },
+    { "NUMPAD_8", 152 },
+    { "NUMPAD_9", 153 },
+    { "NUMPAD_DIVIDE", 154 },
+    { "NUMPAD_MULTIPLY", 155 },
+    { "NUMPAD_SUBTRACT", 156 },
+    { "NUMPAD_ADD", 157 },
+    { "NUMPAD_DOT", 158 },
+    { "NUMPAD_COMMA", 159 },
+    { "NUMPAD_ENTER", 160 },
+    { "NUMPAD_EQUALS", 161 },
+    { "NUMPAD_LEFT_PAREN", 162 },
+    { "NUMPAD_RIGHT_PAREN", 163 },
+    { "VOLUME_MUTE", 164 },
+    { "INFO", 165 },
+    { "CHANNEL_UP", 166 },
+    { "CHANNEL_DOWN", 167 },
+    { "ZOOM_IN", 168 },
+    { "ZOOM_OUT", 169 },
+    { "TV", 170 },
+    { "WINDOW", 171 },
+    { "GUIDE", 172 },
+    { "DVR", 173 },
+    { "BOOKMARK", 174 },
+    { "CAPTIONS", 175 },
+    { "SETTINGS", 176 },
+    { "TV_POWER", 177 },
+    { "TV_INPUT", 178 },
+    { "STB_POWER", 179 },
+    { "STB_INPUT", 180 },
+    { "AVR_POWER", 181 },
+    { "AVR_INPUT", 182 },
+    { "PROG_RED", 183 },
+    { "PROG_GREEN", 184 },
+    { "PROG_YELLOW", 185 },
+    { "PROG_BLUE", 186 },
+    { "APP_SWITCH", 187 },
+    { "BUTTON_1", 188 },
+    { "BUTTON_2", 189 },
+    { "BUTTON_3", 190 },
+    { "BUTTON_4", 191 },
+    { "BUTTON_5", 192 },
+    { "BUTTON_6", 193 },
+    { "BUTTON_7", 194 },
+    { "BUTTON_8", 195 },
+    { "BUTTON_9", 196 },
+    { "BUTTON_10", 197 },
+    { "BUTTON_11", 198 },
+    { "BUTTON_12", 199 },
+    { "BUTTON_13", 200 },
+    { "BUTTON_14", 201 },
+    { "BUTTON_15", 202 },
+    { "BUTTON_16", 203 },
+    { "LANGUAGE_SWITCH", 204 },
+    { "MANNER_MODE", 205 },
+    { "3D_MODE", 206 },
+    { "CONTACTS", 207 },
+    { "CALENDAR", 208 },
+    { "MUSIC", 209 },
+    { "CALCULATOR", 210 },
+    { "ZENKAKU_HANKAKU", 211 },
+    { "EISU", 212 },
+    { "MUHENKAN", 213 },
+    { "HENKAN", 214 },
+    { "KATAKANA_HIRAGANA", 215 },
+    { "YEN", 216 },
+    { "RO", 217 },
+    { "KANA", 218 },
+    { "ASSIST", 219 },
+    { "BRIGHTNESS_DOWN", 220 },
+    { "BRIGHTNESS_UP", 221 },
+    { "MEDIA_AUDIO_TRACK", 222 },
+
+    // NOTE: If you add a new keycode here you must also add it to several other files.
+    //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
+
+    { NULL, 0 }
+};
+
+// NOTE: If you edit these flags, also edit policy flags in Input.h.
+static const KeycodeLabel FLAGS[] = {
+    { "WAKE", 0x00000001 },
+    { "WAKE_DROPPED", 0x00000002 },
+    { "SHIFT", 0x00000004 },
+    { "CAPS_LOCK", 0x00000008 },
+    { "ALT", 0x00000010 },
+    { "ALT_GR", 0x00000020 },
+    { "MENU", 0x00000040 },
+    { "LAUNCHER", 0x00000080 },
+    { "VIRTUAL", 0x00000100 },
+    { "FUNCTION", 0x00000200 },
+    { NULL, 0 }
+};
+
+static const KeycodeLabel AXES[] = {
+    { "X", 0 },
+    { "Y", 1 },
+    { "PRESSURE", 2 },
+    { "SIZE", 3 },
+    { "TOUCH_MAJOR", 4 },
+    { "TOUCH_MINOR", 5 },
+    { "TOOL_MAJOR", 6 },
+    { "TOOL_MINOR", 7 },
+    { "ORIENTATION", 8 },
+    { "VSCROLL", 9 },
+    { "HSCROLL", 10 },
+    { "Z", 11 },
+    { "RX", 12 },
+    { "RY", 13 },
+    { "RZ", 14 },
+    { "HAT_X", 15 },
+    { "HAT_Y", 16 },
+    { "LTRIGGER", 17 },
+    { "RTRIGGER", 18 },
+    { "THROTTLE", 19 },
+    { "RUDDER", 20 },
+    { "WHEEL", 21 },
+    { "GAS", 22 },
+    { "BRAKE", 23 },
+    { "DISTANCE", 24 },
+    { "TILT", 25 },
+    { "GENERIC_1", 32 },
+    { "GENERIC_2", 33 },
+    { "GENERIC_3", 34 },
+    { "GENERIC_4", 35 },
+    { "GENERIC_5", 36 },
+    { "GENERIC_6", 37 },
+    { "GENERIC_7", 38 },
+    { "GENERIC_8", 39 },
+    { "GENERIC_9", 40 },
+    { "GENERIC_10", 41 },
+    { "GENERIC_11", 42 },
+    { "GENERIC_12", 43 },
+    { "GENERIC_13", 44 },
+    { "GENERIC_14", 45 },
+    { "GENERIC_15", 46 },
+    { "GENERIC_16", 47 },
+
+    // NOTE: If you add a new axis here you must also add it to several other files.
+    //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
+
+    { NULL, -1 }
+};
 
 #endif // _LIBINPUT_KEYCODE_LABELS_H
diff --git a/include/input/VelocityControl.h b/include/input/VelocityControl.h
new file mode 100644
index 0000000..1acc2ae
--- /dev/null
+++ b/include/input/VelocityControl.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_VELOCITY_CONTROL_H
+#define _LIBINPUT_VELOCITY_CONTROL_H
+
+#include <input/Input.h>
+#include <input/VelocityTracker.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+/*
+ * Specifies parameters that govern pointer or wheel acceleration.
+ */
+struct VelocityControlParameters {
+    // A scale factor that is multiplied with the raw velocity deltas
+    // prior to applying any other velocity control factors.  The scale
+    // factor should be used to adapt the input device resolution
+    // (eg. counts per inch) to the output device resolution (eg. pixels per inch).
+    //
+    // Must be a positive value.
+    // Default is 1.0 (no scaling).
+    float scale;
+
+    // The scaled speed at which acceleration begins to be applied.
+    // This value establishes the upper bound of a low speed regime for
+    // small precise motions that are performed without any acceleration.
+    //
+    // Must be a non-negative value.
+    // Default is 0.0 (no low threshold).
+    float lowThreshold;
+
+    // The scaled speed at which maximum acceleration is applied.
+    // The difference between highThreshold and lowThreshold controls
+    // the range of speeds over which the acceleration factor is interpolated.
+    // The wider the range, the smoother the acceleration.
+    //
+    // Must be a non-negative value greater than or equal to lowThreshold.
+    // Default is 0.0 (no high threshold).
+    float highThreshold;
+
+    // The acceleration factor.
+    // When the speed is above the low speed threshold, the velocity will scaled
+    // by an interpolated value between 1.0 and this amount.
+    //
+    // Must be a positive greater than or equal to 1.0.
+    // Default is 1.0 (no acceleration).
+    float acceleration;
+
+    VelocityControlParameters() :
+            scale(1.0f), lowThreshold(0.0f), highThreshold(0.0f), acceleration(1.0f) {
+    }
+
+    VelocityControlParameters(float scale, float lowThreshold,
+            float highThreshold, float acceleration) :
+            scale(scale), lowThreshold(lowThreshold),
+            highThreshold(highThreshold), acceleration(acceleration) {
+    }
+};
+
+/*
+ * Implements mouse pointer and wheel speed control and acceleration.
+ */
+class VelocityControl {
+public:
+    VelocityControl();
+
+    /* Sets the various parameters. */
+    void setParameters(const VelocityControlParameters& parameters);
+
+    /* Resets the current movement counters to zero.
+     * This has the effect of nullifying any acceleration. */
+    void reset();
+
+    /* Translates a raw movement delta into an appropriately
+     * scaled / accelerated delta based on the current velocity. */
+    void move(nsecs_t eventTime, float* deltaX, float* deltaY);
+
+private:
+    // If no movements are received within this amount of time,
+    // we assume the movement has stopped and reset the movement counters.
+    static const nsecs_t STOP_TIME = 500 * 1000000; // 500 ms
+
+    VelocityControlParameters mParameters;
+
+    nsecs_t mLastMovementTime;
+    VelocityTracker::Position mRawPosition;
+    VelocityTracker mVelocityTracker;
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_VELOCITY_CONTROL_H
diff --git a/include/input/VelocityTracker.h b/include/input/VelocityTracker.h
new file mode 100644
index 0000000..795f575
--- /dev/null
+++ b/include/input/VelocityTracker.h
@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_VELOCITY_TRACKER_H
+#define _LIBINPUT_VELOCITY_TRACKER_H
+
+#include <input/Input.h>
+#include <utils/Timers.h>
+#include <utils/BitSet.h>
+
+namespace android {
+
+class VelocityTrackerStrategy;
+
+/*
+ * Calculates the velocity of pointer movements over time.
+ */
+class VelocityTracker {
+public:
+    struct Position {
+        float x, y;
+    };
+
+    struct Estimator {
+        static const size_t MAX_DEGREE = 4;
+
+        // Estimator time base.
+        nsecs_t time;
+
+        // Polynomial coefficients describing motion in X and Y.
+        float xCoeff[MAX_DEGREE + 1], yCoeff[MAX_DEGREE + 1];
+
+        // Polynomial degree (number of coefficients), or zero if no information is
+        // available.
+        uint32_t degree;
+
+        // Confidence (coefficient of determination), between 0 (no fit) and 1 (perfect fit).
+        float confidence;
+
+        inline void clear() {
+            time = 0;
+            degree = 0;
+            confidence = 0;
+            for (size_t i = 0; i <= MAX_DEGREE; i++) {
+                xCoeff[i] = 0;
+                yCoeff[i] = 0;
+            }
+        }
+    };
+
+    // Creates a velocity tracker using the specified strategy.
+    // If strategy is NULL, uses the default strategy for the platform.
+    VelocityTracker(const char* strategy = NULL);
+
+    ~VelocityTracker();
+
+    // Resets the velocity tracker state.
+    void clear();
+
+    // Resets the velocity tracker state for specific pointers.
+    // Call this method when some pointers have changed and may be reusing
+    // an id that was assigned to a different pointer earlier.
+    void clearPointers(BitSet32 idBits);
+
+    // Adds movement information for a set of pointers.
+    // The idBits bitfield specifies the pointer ids of the pointers whose positions
+    // are included in the movement.
+    // The positions array contains position information for each pointer in order by
+    // increasing id.  Its size should be equal to the number of one bits in idBits.
+    void addMovement(nsecs_t eventTime, BitSet32 idBits, const Position* positions);
+
+    // Adds movement information for all pointers in a MotionEvent, including historical samples.
+    void addMovement(const MotionEvent* event);
+
+    // Gets the velocity of the specified pointer id in position units per second.
+    // Returns false and sets the velocity components to zero if there is
+    // insufficient movement information for the pointer.
+    bool getVelocity(uint32_t id, float* outVx, float* outVy) const;
+
+    // Gets an estimator for the recent movements of the specified pointer id.
+    // Returns false and clears the estimator if there is no information available
+    // about the pointer.
+    bool getEstimator(uint32_t id, Estimator* outEstimator) const;
+
+    // Gets the active pointer id, or -1 if none.
+    inline int32_t getActivePointerId() const { return mActivePointerId; }
+
+    // Gets a bitset containing all pointer ids from the most recent movement.
+    inline BitSet32 getCurrentPointerIdBits() const { return mCurrentPointerIdBits; }
+
+private:
+    static const char* DEFAULT_STRATEGY;
+
+    nsecs_t mLastEventTime;
+    BitSet32 mCurrentPointerIdBits;
+    int32_t mActivePointerId;
+    VelocityTrackerStrategy* mStrategy;
+
+    bool configureStrategy(const char* strategy);
+
+    static VelocityTrackerStrategy* createStrategy(const char* strategy);
+};
+
+
+/*
+ * Implements a particular velocity tracker algorithm.
+ */
+class VelocityTrackerStrategy {
+protected:
+    VelocityTrackerStrategy() { }
+
+public:
+    virtual ~VelocityTrackerStrategy() { }
+
+    virtual void clear() = 0;
+    virtual void clearPointers(BitSet32 idBits) = 0;
+    virtual void addMovement(nsecs_t eventTime, BitSet32 idBits,
+            const VelocityTracker::Position* positions) = 0;
+    virtual bool getEstimator(uint32_t id, VelocityTracker::Estimator* outEstimator) const = 0;
+};
+
+
+/*
+ * Velocity tracker algorithm based on least-squares linear regression.
+ */
+class LeastSquaresVelocityTrackerStrategy : public VelocityTrackerStrategy {
+public:
+    enum Weighting {
+        // No weights applied.  All data points are equally reliable.
+        WEIGHTING_NONE,
+
+        // Weight by time delta.  Data points clustered together are weighted less.
+        WEIGHTING_DELTA,
+
+        // Weight such that points within a certain horizon are weighed more than those
+        // outside of that horizon.
+        WEIGHTING_CENTRAL,
+
+        // Weight such that points older than a certain amount are weighed less.
+        WEIGHTING_RECENT,
+    };
+
+    // Degree must be no greater than Estimator::MAX_DEGREE.
+    LeastSquaresVelocityTrackerStrategy(uint32_t degree, Weighting weighting = WEIGHTING_NONE);
+    virtual ~LeastSquaresVelocityTrackerStrategy();
+
+    virtual void clear();
+    virtual void clearPointers(BitSet32 idBits);
+    virtual void addMovement(nsecs_t eventTime, BitSet32 idBits,
+            const VelocityTracker::Position* positions);
+    virtual bool getEstimator(uint32_t id, VelocityTracker::Estimator* outEstimator) const;
+
+private:
+    // Sample horizon.
+    // We don't use too much history by default since we want to react to quick
+    // changes in direction.
+    static const nsecs_t HORIZON = 100 * 1000000; // 100 ms
+
+    // Number of samples to keep.
+    static const uint32_t HISTORY_SIZE = 20;
+
+    struct Movement {
+        nsecs_t eventTime;
+        BitSet32 idBits;
+        VelocityTracker::Position positions[MAX_POINTERS];
+
+        inline const VelocityTracker::Position& getPosition(uint32_t id) const {
+            return positions[idBits.getIndexOfBit(id)];
+        }
+    };
+
+    float chooseWeight(uint32_t index) const;
+
+    const uint32_t mDegree;
+    const Weighting mWeighting;
+    uint32_t mIndex;
+    Movement mMovements[HISTORY_SIZE];
+};
+
+
+/*
+ * Velocity tracker algorithm that uses an IIR filter.
+ */
+class IntegratingVelocityTrackerStrategy : public VelocityTrackerStrategy {
+public:
+    // Degree must be 1 or 2.
+    IntegratingVelocityTrackerStrategy(uint32_t degree);
+    ~IntegratingVelocityTrackerStrategy();
+
+    virtual void clear();
+    virtual void clearPointers(BitSet32 idBits);
+    virtual void addMovement(nsecs_t eventTime, BitSet32 idBits,
+            const VelocityTracker::Position* positions);
+    virtual bool getEstimator(uint32_t id, VelocityTracker::Estimator* outEstimator) const;
+
+private:
+    // Current state estimate for a particular pointer.
+    struct State {
+        nsecs_t updateTime;
+        uint32_t degree;
+
+        float xpos, xvel, xaccel;
+        float ypos, yvel, yaccel;
+    };
+
+    const uint32_t mDegree;
+    BitSet32 mPointerIdBits;
+    State mPointerState[MAX_POINTER_ID + 1];
+
+    void initState(State& state, nsecs_t eventTime, float xpos, float ypos) const;
+    void updateState(State& state, nsecs_t eventTime, float xpos, float ypos) const;
+    void populateEstimator(const State& state, VelocityTracker::Estimator* outEstimator) const;
+};
+
+
+/*
+ * Velocity tracker strategy used prior to ICS.
+ */
+class LegacyVelocityTrackerStrategy : public VelocityTrackerStrategy {
+public:
+    LegacyVelocityTrackerStrategy();
+    virtual ~LegacyVelocityTrackerStrategy();
+
+    virtual void clear();
+    virtual void clearPointers(BitSet32 idBits);
+    virtual void addMovement(nsecs_t eventTime, BitSet32 idBits,
+            const VelocityTracker::Position* positions);
+    virtual bool getEstimator(uint32_t id, VelocityTracker::Estimator* outEstimator) const;
+
+private:
+    // Oldest sample to consider when calculating the velocity.
+    static const nsecs_t HORIZON = 200 * 1000000; // 100 ms
+
+    // Number of samples to keep.
+    static const uint32_t HISTORY_SIZE = 20;
+
+    // The minimum duration between samples when estimating velocity.
+    static const nsecs_t MIN_DURATION = 10 * 1000000; // 10 ms
+
+    struct Movement {
+        nsecs_t eventTime;
+        BitSet32 idBits;
+        VelocityTracker::Position positions[MAX_POINTERS];
+
+        inline const VelocityTracker::Position& getPosition(uint32_t id) const {
+            return positions[idBits.getIndexOfBit(id)];
+        }
+    };
+
+    uint32_t mIndex;
+    Movement mMovements[HISTORY_SIZE];
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_VELOCITY_TRACKER_H
diff --git a/include/input/VirtualKeyMap.h b/include/input/VirtualKeyMap.h
new file mode 100644
index 0000000..e245ead
--- /dev/null
+++ b/include/input/VirtualKeyMap.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_VIRTUAL_KEY_MAP_H
+#define _LIBINPUT_VIRTUAL_KEY_MAP_H
+
+#include <stdint.h>
+
+#include <input/Input.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Tokenizer.h>
+#include <utils/String8.h>
+#include <utils/Unicode.h>
+
+namespace android {
+
+/* Describes a virtual key. */
+struct VirtualKeyDefinition {
+    int32_t scanCode;
+
+    // configured position data, specified in display coords
+    int32_t centerX;
+    int32_t centerY;
+    int32_t width;
+    int32_t height;
+};
+
+
+/**
+ * Describes a collection of virtual keys on a touch screen in terms of
+ * virtual scan codes and hit rectangles.
+ *
+ * This object is immutable after it has been loaded.
+ */
+class VirtualKeyMap {
+public:
+    ~VirtualKeyMap();
+
+    static status_t load(const String8& filename, VirtualKeyMap** outMap);
+
+    inline const Vector<VirtualKeyDefinition>& getVirtualKeys() const {
+        return mVirtualKeys;
+    }
+
+private:
+    class Parser {
+        VirtualKeyMap* mMap;
+        Tokenizer* mTokenizer;
+
+    public:
+        Parser(VirtualKeyMap* map, Tokenizer* tokenizer);
+        ~Parser();
+        status_t parse();
+
+    private:
+        bool consumeFieldDelimiterAndSkipWhitespace();
+        bool parseNextIntField(int32_t* outValue);
+    };
+
+    Vector<VirtualKeyDefinition> mVirtualKeys;
+
+    VirtualKeyMap();
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_KEY_CHARACTER_MAP_H
diff --git a/include/media/hardware/HDCPAPI.h b/include/media/hardware/HDCPAPI.h
index 147448e..b3f4222 100644
--- a/include/media/hardware/HDCPAPI.h
+++ b/include/media/hardware/HDCPAPI.h
@@ -19,6 +19,7 @@
 #define HDCP_API_H_
 
 #include <utils/Errors.h>
+#include <system/window.h>
 
 namespace android {
 
@@ -90,6 +91,20 @@
         return INVALID_OPERATION;
     }
 
+    // Encrypt data according to the HDCP spec. "size" bytes of data starting
+    // at location "offset" are available in "buffer" (buffer handle). "size"
+    // may not be a multiple of 128 bits (16 bytes). An equal number of
+    // encrypted bytes should be written to the buffer at "outData" (virtual
+    // address). This operation is to be synchronous, i.e. this call does not
+    // return until outData contains size bytes of encrypted data.
+    // streamCTR will be assigned by the caller (to 0 for the first PES stream,
+    // 1 for the second and so on)
+    // inputCTR _will_be_maintained_by_the_callee_ for each PES stream.
+    virtual status_t encryptNative(
+            buffer_handle_t buffer, size_t offset, size_t size,
+            uint32_t streamCTR, uint64_t *outInputCTR, void *outData) {
+        return INVALID_OPERATION;
+    }
     // DECRYPTION only:
     // Decrypt data according to the HDCP spec.
     // "size" bytes of encrypted data are available at "inData"
diff --git a/include/media/hardware/HardwareAPI.h b/include/media/hardware/HardwareAPI.h
index cc43bf6..a6a849d 100644
--- a/include/media/hardware/HardwareAPI.h
+++ b/include/media/hardware/HardwareAPI.h
@@ -18,7 +18,8 @@
 
 #define HARDWARE_API_H_
 
-#include <OMXPluginBase.h>
+#include <media/hardware/OMXPluginBase.h>
+#include <media/hardware/MetadataBufferType.h>
 #include <system/window.h>
 #include <utils/RefBase.h>
 
@@ -73,6 +74,13 @@
     OMX_BOOL bStoreMetaData;
 };
 
+// Meta data buffer layout used to transport output frames to the decoder for
+// dynamic buffer handling.
+struct VideoDecoderOutputMetaData {
+  MetadataBufferType eType;
+  buffer_handle_t pHandle;
+};
+
 // A pointer to this struct is passed to OMX_SetParameter when the extension
 // index for the 'OMX.google.android.index.useAndroidNativeBuffer' extension is
 // given.  This call will only be performed if a prior call was made with the
diff --git a/include/media/openmax/OMX_IVCommon.h b/include/media/openmax/OMX_IVCommon.h
index 85bf00d..96a4396 100644
--- a/include/media/openmax/OMX_IVCommon.h
+++ b/include/media/openmax/OMX_IVCommon.h
@@ -161,6 +161,7 @@
     OMX_QCOM_COLOR_FormatYVU420SemiPlanar = 0x7FA30C00,
     OMX_QCOM_COLOR_FormatYUV420PackedSemiPlanar64x32Tile2m8ka = 0x7FA30C03,
     OMX_SEC_COLOR_FormatNV12Tiled = 0x7FC00002,
+    OMX_QCOM_COLOR_FormatYUV420PackedSemiPlanar32m = 0x7FA30C04,
     OMX_COLOR_FormatMax = 0x7FFFFFFF
 } OMX_COLOR_FORMATTYPE;
 
diff --git a/include/media/openmax/OMX_Video.h b/include/media/openmax/OMX_Video.h
index 4f8485d..4441a7a 100644
--- a/include/media/openmax/OMX_Video.h
+++ b/include/media/openmax/OMX_Video.h
@@ -85,7 +85,8 @@
     OMX_VIDEO_CodingRV,         /**< all versions of Real Video */
     OMX_VIDEO_CodingAVC,        /**< H.264/AVC */
     OMX_VIDEO_CodingMJPEG,      /**< Motion JPEG */
-    OMX_VIDEO_CodingVPX,        /**< Google VPX, formerly known as On2 VP8 */
+    OMX_VIDEO_CodingVP8,        /**< Google VP8, formerly known as On2 VP8 */
+    OMX_VIDEO_CodingVP9,        /**< Google VP9 */
     OMX_VIDEO_CodingKhronosExtensions = 0x6F000000, /**< Reserved region for introducing Khronos Standard Extensions */ 
     OMX_VIDEO_CodingVendorStartUnused = 0x7F000000, /**< Reserved region for introducing Vendor Extensions */
     OMX_VIDEO_CodingMax = 0x7FFFFFFF
diff --git a/include/media/openmax/OMX_VideoExt.h b/include/media/openmax/OMX_VideoExt.h
index 5e79b47..fa24168 100644
--- a/include/media/openmax/OMX_VideoExt.h
+++ b/include/media/openmax/OMX_VideoExt.h
@@ -58,12 +58,6 @@
     OMX_NALUFORMATSTYPE eNaluFormat;
 } OMX_NALSTREAMFORMATTYPE;
 
-/** Enum for standard video codingtype extensions */
-typedef enum OMX_VIDEO_CODINGEXTTYPE {
-    OMX_VIDEO_ExtCodingUnused = OMX_VIDEO_CodingKhronosExtensions,
-    OMX_VIDEO_CodingVP8,        /**< VP8/WebM */
-} OMX_VIDEO_CODINGEXTTYPE;
-
 /** VP8 profiles */
 typedef enum OMX_VIDEO_VP8PROFILETYPE {
     OMX_VIDEO_VP8ProfileMain = 0x01,
diff --git a/include/powermanager/IPowerManager.h b/include/powermanager/IPowerManager.h
index 1723f04..e21e6a8 100644
--- a/include/powermanager/IPowerManager.h
+++ b/include/powermanager/IPowerManager.h
@@ -30,7 +30,8 @@
 public:
     DECLARE_META_INTERFACE(PowerManager);
 
-    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag) = 0;
+    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag,
+            const String16& packageName) = 0;
     virtual status_t releaseWakeLock(const sp<IBinder>& lock, int flags) = 0;
 };
 
diff --git a/include/private/binder/Static.h b/include/private/binder/Static.h
index 5b0f9fc..6a03594 100644
--- a/include/private/binder/Static.h
+++ b/include/private/binder/Static.h
@@ -27,6 +27,9 @@
 
 namespace android {
 
+// For TextStream.cpp
+extern Vector<int32_t> gTextBuffers;
+
 // For ProcessState.cpp
 extern Mutex gProcessMutex;
 extern sp<ProcessState> gProcess;
diff --git a/include/private/utils/Static.h b/include/private/utils/Static.h
deleted file mode 100644
index d95ae0d..0000000
--- a/include/private/utils/Static.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// All static variables go here, to control initialization and
-// destruction order in the library.
-
-#include <utils/threads.h>
-#include <utils/KeyedVector.h>
-
-namespace android {
-// For TextStream.cpp
-extern Vector<int32_t> gTextBuffers;
-
-// For String8.cpp
-extern void initialize_string8();
-extern void terminate_string8();
-
-// For String16.cpp
-extern void initialize_string16();
-extern void terminate_string16();
-
-}   // namespace android
diff --git a/include/ui/Rect.h b/include/ui/Rect.h
index 47d37b6..6cf64eb 100644
--- a/include/ui/Rect.h
+++ b/include/ui/Rect.h
@@ -35,14 +35,25 @@
 
     inline Rect() {
     }
+
     inline Rect(int32_t w, int32_t h) {
-        left = top = 0; right = w; bottom = h;
+        left = top = 0;
+        right = w;
+        bottom = h;
     }
+
     inline Rect(int32_t l, int32_t t, int32_t r, int32_t b) {
-        left = l; top = t; right = r; bottom = b;
+        left = l;
+        top = t;
+        right = r;
+        bottom = b;
     }
+
     inline Rect(const Point& lt, const Point& rb) {
-        left = lt.x; top = lt.y; right = rb.x; bottom = rb.y;
+        left = lt.x;
+        top = lt.y;
+        right = rb.x;
+        bottom = rb.y;
     }
 
     void makeInvalid();
@@ -53,43 +64,36 @@
 
     // a valid rectangle has a non negative width and height
     inline bool isValid() const {
-        return (width()>=0) && (height()>=0);
+        return (getWidth() >= 0) && (getHeight() >= 0);
     }
 
     // an empty rect has a zero width or height, or is invalid
     inline bool isEmpty() const {
-        return (width()<=0) || (height()<=0);
-    }
-
-    inline void set(const Rect& rhs) {
-        operator = (rhs);
+        return (getWidth() <= 0) || (getHeight() <= 0);
     }
 
     // rectangle's width
     inline int32_t getWidth() const {
-        return right-left;
+        return right - left;
     }
-    
+
     // rectangle's height
     inline int32_t getHeight() const {
-        return bottom-top;
+        return bottom - top;
     }
 
     inline Rect getBounds() const {
-        return Rect(right-left, bottom-top);
+        return Rect(right - left, bottom - top);
     }
 
-    inline int32_t width() const { return getWidth(); }
-    inline int32_t height() const { return getHeight(); }
-
     void setLeftTop(const Point& lt) {
         left = lt.x;
-        top  = lt.y;
+        top = lt.y;
     }
 
     void setRightBottom(const Point& rb) {
         right = rb.x;
-        bottom  = rb.y;
+        bottom = rb.y;
     }
     
     // the following 4 functions return the 4 corners of the rect as Point
@@ -120,6 +124,16 @@
     // vectors.
     bool operator < (const Rect& rhs) const;
 
+    const Rect operator + (const Point& rhs) const;
+    const Rect operator - (const Point& rhs) const;
+
+    Rect& operator += (const Point& rhs) {
+        return offsetBy(rhs.x, rhs.y);
+    }
+    Rect& operator -= (const Point& rhs) {
+        return offsetBy(-rhs.x, -rhs.y);
+    }
+
     Rect& offsetToOrigin() {
         right -= left;
         bottom -= top;
@@ -132,22 +146,11 @@
     Rect& offsetBy(const Point& dp) {
         return offsetBy(dp.x, dp.y);
     }
-    Rect& operator += (const Point& rhs) {
-        return offsetBy(rhs.x, rhs.y);
-    }
-    Rect& operator -= (const Point& rhs) {
-        return offsetBy(-rhs.x, -rhs.y);
-    }
-    const Rect operator + (const Point& rhs) const;
-    const Rect operator - (const Point& rhs) const;
 
-    void translate(int32_t dx, int32_t dy) { // legacy, don't use.
-        offsetBy(dx, dy);
-    }
+    Rect& offsetTo(int32_t x, int32_t y);
+    Rect& offsetBy(int32_t x, int32_t y);
 
-    Rect&   offsetTo(int32_t x, int32_t y);
-    Rect&   offsetBy(int32_t x, int32_t y);
-    bool    intersect(const Rect& with, Rect* result) const;
+    bool intersect(const Rect& with, Rect* result) const;
 
     // Create a new Rect by transforming this one using a graphics HAL
     // transform.  This rectangle is defined in a coordinate space starting at
@@ -156,6 +159,15 @@
     // (height, width).  Otherwise the output rectangle is in the same space as
     // the input.
     Rect transform(uint32_t xform, int32_t width, int32_t height) const;
+
+    // this calculates (Region(*this) - exclude).bounds() efficiently
+    Rect reduce(const Rect& exclude) const;
+
+
+    // for backward compatibility
+    inline int32_t width() const { return getWidth(); }
+    inline int32_t height() const { return getHeight(); }
+    inline void set(const Rect& rhs) { operator = (rhs); }
 };
 
 ANDROID_BASIC_TYPES_TRAITS(Rect)
diff --git a/include/utils/BitSet.h b/include/utils/BitSet.h
index e189d0c..19c03d1 100644
--- a/include/utils/BitSet.h
+++ b/include/utils/BitSet.h
@@ -101,6 +101,20 @@
 
     inline bool operator== (const BitSet32& other) const { return value == other.value; }
     inline bool operator!= (const BitSet32& other) const { return value != other.value; }
+    inline BitSet32 operator& (const BitSet32& other) const {
+        return BitSet32(value & other.value);
+    }
+    inline BitSet32& operator&= (const BitSet32& other) {
+        value &= other.value;
+        return *this;
+    }
+    inline BitSet32 operator| (const BitSet32& other) const {
+        return BitSet32(value | other.value);
+    }
+    inline BitSet32& operator|= (const BitSet32& other) {
+        value |= other.value;
+        return *this;
+    }
 };
 
 ANDROID_BASIC_TYPES_TRAITS(BitSet32)
diff --git a/include/utils/Debug.h b/include/utils/Debug.h
index d9ed32d..08893bd 100644
--- a/include/utils/Debug.h
+++ b/include/utils/Debug.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_DEBUG_H
-#define ANDROID_DEBUG_H
+#ifndef ANDROID_UTILS_DEBUG_H
+#define ANDROID_UTILS_DEBUG_H
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -43,28 +43,6 @@
 #endif
 
 // ---------------------------------------------------------------------------
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-const char* stringForIndent(int32_t indentLevel);
-
-typedef void (*debugPrintFunc)(void* cookie, const char* txt);
-
-void printTypeCode(uint32_t typeCode,
-    debugPrintFunc func = 0, void* cookie = 0);
-
-void printHexData(int32_t indent, const void *buf, size_t length,
-    size_t bytesPerLine=16, int32_t singleLineBytesCutoff=16,
-    size_t alignment=0, bool cArrayStyle=false,
-    debugPrintFunc func = 0, void* cookie = 0);
-
-#ifdef __cplusplus
-}
-#endif
-
-// ---------------------------------------------------------------------------
 }; // namespace android
 
-#endif // ANDROID_DEBUG_H
+#endif // ANDROID_UTILS_DEBUG_H
diff --git a/include/utils/GenerationCache.h b/include/utils/GenerationCache.h
deleted file mode 100644
index 40722d1..0000000
--- a/include/utils/GenerationCache.h
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_UTILS_GENERATION_CACHE_H
-#define ANDROID_UTILS_GENERATION_CACHE_H
-
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-/**
- * GenerationCache callback used when an item is removed
- */
-template<typename EntryKey, typename EntryValue>
-class OnEntryRemoved {
-public:
-    virtual ~OnEntryRemoved() { };
-    virtual void operator()(EntryKey& key, EntryValue& value) = 0;
-}; // class OnEntryRemoved
-
-template<typename EntryKey, typename EntryValue>
-struct Entry: public LightRefBase<Entry<EntryKey, EntryValue> > {
-    Entry(const Entry<EntryKey, EntryValue>& e) :
-            key(e.key), value(e.value),
-            parent(e.parent), child(e.child) { }
-    Entry(const EntryKey& key, const EntryValue& value) :
-            key(key), value(value) { }
-
-    EntryKey key;
-    EntryValue value;
-
-    sp<Entry<EntryKey, EntryValue> > parent; // next older entry
-    sp<Entry<EntryKey, EntryValue> > child;  // next younger entry
-}; // struct Entry
-
-/**
- * A LRU type cache
- */
-template<typename K, typename V>
-class GenerationCache {
-public:
-    GenerationCache(uint32_t maxCapacity);
-    virtual ~GenerationCache();
-
-    enum Capacity {
-        kUnlimitedCapacity,
-    };
-
-    void setOnEntryRemovedListener(OnEntryRemoved<K, V>* listener);
-
-    size_t size() const;
-
-    void clear();
-
-    bool contains(const K& key) const;
-    const K& getKeyAt(size_t index) const;
-    const V& getValueAt(size_t index) const;
-
-    const V& get(const K& key);
-    bool put(const K& key, const V& value);
-
-    void removeAt(ssize_t index);
-    bool remove(const K& key);
-    bool removeOldest();
-
-private:
-    KeyedVector<K, sp<Entry<K, V> > > mCache;
-    uint32_t mMaxCapacity;
-
-    OnEntryRemoved<K, V>* mListener;
-
-    sp<Entry<K, V> > mOldest;
-    sp<Entry<K, V> > mYoungest;
-
-    void attachToCache(const sp<Entry<K, V> >& entry);
-    void detachFromCache(const sp<Entry<K, V> >& entry);
-
-    const V mNullValue;
-}; // class GenerationCache
-
-template<typename K, typename V>
-GenerationCache<K, V>::GenerationCache(uint32_t maxCapacity): mMaxCapacity(maxCapacity),
-    mListener(NULL), mNullValue(NULL) {
-};
-
-template<typename K, typename V>
-GenerationCache<K, V>::~GenerationCache() {
-    clear();
-};
-
-template<typename K, typename V>
-uint32_t GenerationCache<K, V>::size() const {
-    return mCache.size();
-}
-
-/**
- * Should be set by the user of the Cache so that the callback is called whenever an item is
- * removed from the cache
- */
-template<typename K, typename V>
-void GenerationCache<K, V>::setOnEntryRemovedListener(OnEntryRemoved<K, V>* listener) {
-    mListener = listener;
-}
-
-template<typename K, typename V>
-void GenerationCache<K, V>::clear() {
-    if (mListener) {
-        for (uint32_t i = 0; i < mCache.size(); i++) {
-            sp<Entry<K, V> > entry = mCache.valueAt(i);
-            if (mListener) {
-                (*mListener)(entry->key, entry->value);
-            }
-        }
-    }
-    mCache.clear();
-    mYoungest.clear();
-    mOldest.clear();
-}
-
-template<typename K, typename V>
-bool GenerationCache<K, V>::contains(const K& key) const {
-    return mCache.indexOfKey(key) >= 0;
-}
-
-template<typename K, typename V>
-const K& GenerationCache<K, V>::getKeyAt(size_t index) const {
-    return mCache.keyAt(index);
-}
-
-template<typename K, typename V>
-const V& GenerationCache<K, V>::getValueAt(size_t index) const {
-    return mCache.valueAt(index)->value;
-}
-
-template<typename K, typename V>
-const V& GenerationCache<K, V>::get(const K& key) {
-    ssize_t index = mCache.indexOfKey(key);
-    if (index >= 0) {
-        const sp<Entry<K, V> >& entry = mCache.valueAt(index);
-        detachFromCache(entry);
-        attachToCache(entry);
-        return entry->value;
-    }
-
-    return mNullValue;
-}
-
-template<typename K, typename V>
-bool GenerationCache<K, V>::put(const K& key, const V& value) {
-    if (mMaxCapacity != kUnlimitedCapacity && mCache.size() >= mMaxCapacity) {
-        removeOldest();
-    }
-
-    ssize_t index = mCache.indexOfKey(key);
-    if (index < 0) {
-        sp<Entry<K, V> > entry = new Entry<K, V>(key, value);
-        mCache.add(key, entry);
-        attachToCache(entry);
-        return true;
-    }
-
-    return false;
-}
-
-template<typename K, typename V>
-bool GenerationCache<K, V>::remove(const K& key) {
-    ssize_t index = mCache.indexOfKey(key);
-    if (index >= 0) {
-        removeAt(index);
-        return true;
-    }
-
-    return false;
-}
-
-template<typename K, typename V>
-void GenerationCache<K, V>::removeAt(ssize_t index) {
-    sp<Entry<K, V> > entry = mCache.valueAt(index);
-    if (mListener) {
-        (*mListener)(entry->key, entry->value);
-    }
-    mCache.removeItemsAt(index, 1);
-    detachFromCache(entry);
-}
-
-template<typename K, typename V>
-bool GenerationCache<K, V>::removeOldest() {
-    if (mOldest.get()) {
-        ssize_t index = mCache.indexOfKey(mOldest->key);
-        if (index >= 0) {
-            removeAt(index);
-            return true;
-        }
-        ALOGE("GenerationCache: removeOldest failed to find the item in the cache "
-                "with the given key, but we know it must be in there.  "
-                "Is the key comparator kaput?");
-    }
-
-    return false;
-}
-
-template<typename K, typename V>
-void GenerationCache<K, V>::attachToCache(const sp<Entry<K, V> >& entry) {
-    if (!mYoungest.get()) {
-        mYoungest = mOldest = entry;
-    } else {
-        entry->parent = mYoungest;
-        mYoungest->child = entry;
-        mYoungest = entry;
-    }
-}
-
-template<typename K, typename V>
-void GenerationCache<K, V>::detachFromCache(const sp<Entry<K, V> >& entry) {
-    if (entry->parent.get()) {
-        entry->parent->child = entry->child;
-    } else {
-        mOldest = entry->child;
-    }
-
-    if (entry->child.get()) {
-        entry->child->parent = entry->parent;
-    } else {
-        mYoungest = entry->parent;
-    }
-
-    entry->parent.clear();
-    entry->child.clear();
-}
-
-}; // namespace android
-
-#endif // ANDROID_UTILS_GENERATION_CACHE_H
diff --git a/include/utils/Looper.h b/include/utils/Looper.h
index d4a0067..2e0651a 100644
--- a/include/utils/Looper.h
+++ b/include/utils/Looper.h
@@ -297,6 +297,13 @@
     void removeMessages(const sp<MessageHandler>& handler, int what);
 
     /**
+     * Return whether this looper's thread is currently idling -- that is, whether it
+     * stopped waiting for more work to do.  Note that this is intrinsically racy, since
+     * its state can change before you get the result back.
+     */
+    bool isIdling() const;
+
+    /**
      * Prepares a looper associated with the calling thread, and returns it.
      * If the thread already has a looper, it is returned.  Otherwise, a new
      * one is created, associated with the thread, and returned.
@@ -353,6 +360,10 @@
     Vector<MessageEnvelope> mMessageEnvelopes; // guarded by mLock
     bool mSendingMessage; // guarded by mLock
 
+    // Whether we are currently waiting for work.  Not protected by a lock,
+    // any use of it is racy anyway.
+    volatile bool mIdling;
+
     int mEpollFd; // immutable
 
     // Locked list of file descriptor monitoring requests.
diff --git a/include/utils/LruCache.h b/include/utils/LruCache.h
index 302b929..053bfaf 100644
--- a/include/utils/LruCache.h
+++ b/include/utils/LruCache.h
@@ -18,12 +18,19 @@
 #define ANDROID_UTILS_LRU_CACHE_H
 
 #include <utils/BasicHashtable.h>
-#include <utils/GenerationCache.h>
 #include <utils/UniquePtr.h>
 
 namespace android {
 
-// OnEntryRemoved is defined in GenerationCache.h, but maybe should move here.
+/**
+ * GenerationCache callback used when an item is removed
+ */
+template<typename EntryKey, typename EntryValue>
+class OnEntryRemoved {
+public:
+    virtual ~OnEntryRemoved() { };
+    virtual void operator()(EntryKey& key, EntryValue& value) = 0;
+}; // class OnEntryRemoved
 
 template <typename TKey, typename TValue>
 class LruCache {
diff --git a/include/utils/String16.h b/include/utils/String16.h
index fe06c57..d131bfc 100644
--- a/include/utils/String16.h
+++ b/include/utils/String16.h
@@ -41,7 +41,16 @@
 class String16
 {
 public:
+    /* use String16(StaticLinkage) if you're statically linking against
+     * libutils and declaring an empty static String16, e.g.:
+     *
+     *   static String16 sAStaticEmptyString(String16::kEmptyString);
+     *   static String16 sAnotherStaticEmptyString(sAStaticEmptyString);
+     */
+    enum StaticLinkage { kEmptyString };
+
                                 String16();
+    explicit                    String16(StaticLinkage);
                                 String16(const String16& o);
                                 String16(const String16& o,
                                          size_t len,
@@ -117,8 +126,6 @@
 // require any change to the underlying SharedBuffer contents or reference count.
 ANDROID_TRIVIAL_MOVE_TRAIT(String16)
 
-TextOutput& operator<<(TextOutput& to, const String16& val);
-
 // ---------------------------------------------------------------------------
 // No user servicable parts below.
 
diff --git a/include/utils/String8.h b/include/utils/String8.h
index 335e7f1..ef59470 100644
--- a/include/utils/String8.h
+++ b/include/utils/String8.h
@@ -37,7 +37,16 @@
 class String8
 {
 public:
+    /* use String8(StaticLinkage) if you're statically linking against
+     * libutils and declaring an empty static String8, e.g.:
+     *
+     *   static String8 sAStaticEmptyString(String8::kEmptyString);
+     *   static String8 sAnotherStaticEmptyString(sAStaticEmptyString);
+     */
+    enum StaticLinkage { kEmptyString };
+
                                 String8();
+    explicit                    String8(StaticLinkage);
                                 String8(const String8& o);
     explicit                    String8(const char* o);
     explicit                    String8(const char* o, size_t numChars);
@@ -224,8 +233,6 @@
 // require any change to the underlying SharedBuffer contents or reference count.
 ANDROID_TRIVIAL_MOVE_TRAIT(String8)
 
-TextOutput& operator<<(TextOutput& to, const String16& val);
-
 // ---------------------------------------------------------------------------
 // No user servicable parts below.
 
diff --git a/include/utils/StringArray.h b/include/utils/StringArray.h
deleted file mode 100644
index c2445871..0000000
--- a/include/utils/StringArray.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Sortable array of strings.  STL-ish, but STL-free.
-//  
-#ifndef _LIBS_UTILS_STRING_ARRAY_H
-#define _LIBS_UTILS_STRING_ARRAY_H
-
-#include <stdlib.h>
-#include <string.h>
-
-namespace android {
-
-//
-// An expanding array of strings.  Add, get, sort, delete.
-//
-class StringArray {
-public:
-    StringArray();
-    virtual ~StringArray();
-
-    //
-    // Add a string.  A copy of the string is made.
-    //
-    bool push_back(const char* str);
-
-    //
-    // Delete an entry.
-    //
-    void erase(int idx);
-
-    //
-    // Sort the array.
-    //
-    void sort(int (*compare)(const void*, const void*));
-    
-    //
-    // Pass this to the sort routine to do an ascending alphabetical sort.
-    //
-    static int cmpAscendingAlpha(const void* pstr1, const void* pstr2);
-    
-    //
-    // Get the #of items in the array.
-    //
-    inline int size(void) const { return mCurrent; }
-
-    //
-    // Return entry N.
-    // [should use operator[] here]
-    //
-    const char* getEntry(int idx) const {
-        return (unsigned(idx) >= unsigned(mCurrent)) ? NULL : mArray[idx];
-    }
-
-    //
-    // Set entry N to specified string.
-    // [should use operator[] here]
-    //
-    void setEntry(int idx, const char* str);
-
-private:
-    int     mMax;
-    int     mCurrent;
-    char**  mArray;
-};
-
-}; // namespace android
-
-#endif // _LIBS_UTILS_STRING_ARRAY_H
diff --git a/include/utils/StrongPointer.h b/include/utils/StrongPointer.h
index 49fa3a8..aba9577 100644
--- a/include/utils/StrongPointer.h
+++ b/include/utils/StrongPointer.h
@@ -26,9 +26,6 @@
 // ---------------------------------------------------------------------------
 namespace android {
 
-class TextOutput;
-TextOutput& printStrongPointer(TextOutput& to, const void* val);
-
 template<typename T> class wp;
 
 // ---------------------------------------------------------------------------
@@ -58,9 +55,8 @@
 
 // ---------------------------------------------------------------------------
 
-template <typename T>
-class sp
-{
+template<typename T>
+class sp {
 public:
     inline sp() : m_ptr(0) { }
 
@@ -110,92 +106,93 @@
 
 #undef COMPARE
 
-template <typename T>
-TextOutput& operator<<(TextOutput& to, const sp<T>& val);
-
 // ---------------------------------------------------------------------------
 // No user serviceable parts below here.
 
 template<typename T>
 sp<T>::sp(T* other)
-: m_ptr(other)
-  {
-    if (other) other->incStrong(this);
-  }
+        : m_ptr(other) {
+    if (other)
+        other->incStrong(this);
+}
 
 template<typename T>
 sp<T>::sp(const sp<T>& other)
-: m_ptr(other.m_ptr)
-  {
-    if (m_ptr) m_ptr->incStrong(this);
-  }
+        : m_ptr(other.m_ptr) {
+    if (m_ptr)
+        m_ptr->incStrong(this);
+}
 
 template<typename T> template<typename U>
-sp<T>::sp(U* other) : m_ptr(other)
-{
-    if (other) ((T*)other)->incStrong(this);
+sp<T>::sp(U* other)
+        : m_ptr(other) {
+    if (other)
+        ((T*) other)->incStrong(this);
 }
 
 template<typename T> template<typename U>
 sp<T>::sp(const sp<U>& other)
-: m_ptr(other.m_ptr)
-  {
-    if (m_ptr) m_ptr->incStrong(this);
-  }
-
-template<typename T>
-sp<T>::~sp()
-{
-    if (m_ptr) m_ptr->decStrong(this);
+        : m_ptr(other.m_ptr) {
+    if (m_ptr)
+        m_ptr->incStrong(this);
 }
 
 template<typename T>
-sp<T>& sp<T>::operator = (const sp<T>& other) {
+sp<T>::~sp() {
+    if (m_ptr)
+        m_ptr->decStrong(this);
+}
+
+template<typename T>
+sp<T>& sp<T>::operator =(const sp<T>& other) {
     T* otherPtr(other.m_ptr);
-    if (otherPtr) otherPtr->incStrong(this);
-    if (m_ptr) m_ptr->decStrong(this);
+    if (otherPtr)
+        otherPtr->incStrong(this);
+    if (m_ptr)
+        m_ptr->decStrong(this);
     m_ptr = otherPtr;
     return *this;
 }
 
 template<typename T>
-sp<T>& sp<T>::operator = (T* other)
-{
-    if (other) other->incStrong(this);
-    if (m_ptr) m_ptr->decStrong(this);
+sp<T>& sp<T>::operator =(T* other) {
+    if (other)
+        other->incStrong(this);
+    if (m_ptr)
+        m_ptr->decStrong(this);
     m_ptr = other;
     return *this;
 }
 
 template<typename T> template<typename U>
-sp<T>& sp<T>::operator = (const sp<U>& other)
-{
+sp<T>& sp<T>::operator =(const sp<U>& other) {
     T* otherPtr(other.m_ptr);
-    if (otherPtr) otherPtr->incStrong(this);
-    if (m_ptr) m_ptr->decStrong(this);
+    if (otherPtr)
+        otherPtr->incStrong(this);
+    if (m_ptr)
+        m_ptr->decStrong(this);
     m_ptr = otherPtr;
     return *this;
 }
 
 template<typename T> template<typename U>
-sp<T>& sp<T>::operator = (U* other)
-{
-    if (other) ((T*)other)->incStrong(this);
-    if (m_ptr) m_ptr->decStrong(this);
+sp<T>& sp<T>::operator =(U* other) {
+    if (other)
+        ((T*) other)->incStrong(this);
+    if (m_ptr)
+        m_ptr->decStrong(this);
     m_ptr = other;
     return *this;
 }
 
-template<typename T>    
-void sp<T>::force_set(T* other)
-{
+template<typename T>
+void sp<T>::force_set(T* other) {
     other->forceIncStrong(this);
     m_ptr = other;
 }
 
 template<typename T>
-void sp<T>::clear()
-{
+void sp<T>::clear() {
     if (m_ptr) {
         m_ptr->decStrong(this);
         m_ptr = 0;
@@ -207,12 +204,6 @@
     m_ptr = ptr;
 }
 
-template <typename T>
-inline TextOutput& operator<<(TextOutput& to, const sp<T>& val)
-{
-    return printStrongPointer(to, val.get());
-}
-
 }; // namespace android
 
 // ---------------------------------------------------------------------------
diff --git a/include/utils/SystemClock.h b/include/utils/SystemClock.h
index d75264c..01db340 100644
--- a/include/utils/SystemClock.h
+++ b/include/utils/SystemClock.h
@@ -22,7 +22,6 @@
 
 namespace android {
 
-int setCurrentTimeMillis(int64_t millis);
 int64_t uptimeMillis();
 int64_t elapsedRealtime();
 int64_t elapsedRealtimeNano();
diff --git a/include/utils/Timers.h b/include/utils/Timers.h
index 92f66c9..d015421 100644
--- a/include/utils/Timers.h
+++ b/include/utils/Timers.h
@@ -103,43 +103,4 @@
 } // extern "C"
 #endif
 
-// ------------------------------------------------------------------
-// C++ API
-
-#ifdef __cplusplus
-
-namespace android {
-/*
- * Time the duration of something.
- *
- * Includes some timeval manipulation functions.
- */
-class DurationTimer {
-public:
-    DurationTimer() {}
-    ~DurationTimer() {}
-
-    // Start the timer.
-    void start();
-    // Stop the timer.
-    void stop();
-    // Get the duration in microseconds.
-    long long durationUsecs() const;
-
-    // Subtract two timevals.  Returns the difference (ptv1-ptv2) in
-    // microseconds.
-    static long long subtractTimevals(const struct timeval* ptv1,
-        const struct timeval* ptv2);
-
-    // Add the specified amount of time to the timeval.
-    static void addToTimeval(struct timeval* ptv, long usec);
-
-private:
-    struct timeval  mStartWhen;
-    struct timeval  mStopWhen;
-};
-
-}; // android
-#endif // def __cplusplus
-
 #endif // _LIBS_UTILS_TIMERS_H
diff --git a/include/utils/Trace.h b/include/utils/Trace.h
index 49578c4..6ee343d 100644
--- a/include/utils/Trace.h
+++ b/include/utils/Trace.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_TRACE_H
 #define ANDROID_TRACE_H
 
+#ifdef HAVE_ANDROID_OS
+
 #include <fcntl.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -57,4 +59,11 @@
 
 }; // namespace android
 
+#else // HAVE_ANDROID_OS
+
+#define ATRACE_NAME(...)
+#define ATRACE_CALL()
+
+#endif // HAVE_ANDROID_OS
+
 #endif // ANDROID_TRACE_H
diff --git a/include/utils/VectorImpl.h b/include/utils/VectorImpl.h
index 9bc50e6..21ad71c 100644
--- a/include/utils/VectorImpl.h
+++ b/include/utils/VectorImpl.h
@@ -105,16 +105,6 @@
     virtual void            do_splat(void* dest, const void* item, size_t num) const = 0;
     virtual void            do_move_forward(void* dest, const void* from, size_t num) const = 0;
     virtual void            do_move_backward(void* dest, const void* from, size_t num) const = 0;
-
-    // take care of FBC...
-    virtual void            reservedVectorImpl1();
-    virtual void            reservedVectorImpl2();
-    virtual void            reservedVectorImpl3();
-    virtual void            reservedVectorImpl4();
-    virtual void            reservedVectorImpl5();
-    virtual void            reservedVectorImpl6();
-    virtual void            reservedVectorImpl7();
-    virtual void            reservedVectorImpl8();
     
 private:
         void* _grow(size_t where, size_t amount);
@@ -166,16 +156,6 @@
 protected:
     virtual int             do_compare(const void* lhs, const void* rhs) const = 0;
 
-    // take care of FBC...
-    virtual void            reservedSortedVectorImpl1();
-    virtual void            reservedSortedVectorImpl2();
-    virtual void            reservedSortedVectorImpl3();
-    virtual void            reservedSortedVectorImpl4();
-    virtual void            reservedSortedVectorImpl5();
-    virtual void            reservedSortedVectorImpl6();
-    virtual void            reservedSortedVectorImpl7();
-    virtual void            reservedSortedVectorImpl8();
-
 private:
             ssize_t         _indexOrderOf(const void* item, size_t* order = 0) const;
 
diff --git a/include/utils/WorkQueue.h b/include/utils/WorkQueue.h
deleted file mode 100644
index e3c75b2..0000000
--- a/include/utils/WorkQueue.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*]
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _LIBS_UTILS_WORK_QUEUE_H
-#define _LIBS_UTILS_WORK_QUEUE_H
-
-#include <utils/Errors.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
-
-namespace android {
-
-/*
- * A threaded work queue.
- *
- * This class is designed to make it easy to run a bunch of isolated work
- * units in parallel, using up to the specified number of threads.
- * To use it, write a loop to post work units to the work queue, then synchronize
- * on the queue at the end.
- */
-class WorkQueue {
-public:
-    class WorkUnit {
-    public:
-        WorkUnit() { }
-        virtual ~WorkUnit() { }
-
-        /*
-         * Runs the work unit.
-         * If the result is 'true' then the work queue continues scheduling work as usual.
-         * If the result is 'false' then the work queue is canceled.
-         */
-        virtual bool run() = 0;
-    };
-
-    /* Creates a work queue with the specified maximum number of work threads. */
-    WorkQueue(size_t maxThreads, bool canCallJava = true);
-
-    /* Destroys the work queue.
-     * Cancels pending work and waits for all remaining threads to complete.
-     */
-    ~WorkQueue();
-
-    /* Posts a work unit to run later.
-     * If the work queue has been canceled or is already finished, returns INVALID_OPERATION
-     * and does not take ownership of the work unit (caller must destroy it itself).
-     * Otherwise, returns OK and takes ownership of the work unit (the work queue will
-     * destroy it automatically).
-     *
-     * For flow control, this method blocks when the size of the pending work queue is more
-     * 'backlog' times the number of threads.  This condition reduces the rate of entry into
-     * the pending work queue and prevents it from growing much more rapidly than the
-     * work threads can actually handle.
-     *
-     * If 'backlog' is 0, then no throttle is applied.
-     */
-    status_t schedule(WorkUnit* workUnit, size_t backlog = 2);
-
-    /* Cancels all pending work.
-     * If the work queue is already finished, returns INVALID_OPERATION.
-     * If the work queue is already canceled, returns OK and does nothing else.
-     * Otherwise, returns OK, discards all pending work units and prevents additional
-     * work units from being scheduled.
-     *
-     * Call finish() after cancel() to wait for all remaining work to complete.
-     */
-    status_t cancel();
-
-    /* Waits for all work to complete.
-     * If the work queue is already finished, returns INVALID_OPERATION.
-     * Otherwise, waits for all work to complete and returns OK.
-     */
-    status_t finish();
-
-private:
-    class WorkThread : public Thread {
-    public:
-        WorkThread(WorkQueue* workQueue, bool canCallJava);
-        virtual ~WorkThread();
-
-    private:
-        virtual bool threadLoop();
-
-        WorkQueue* const mWorkQueue;
-    };
-
-    status_t cancelLocked();
-    bool threadLoop(); // called from each work thread
-
-    const size_t mMaxThreads;
-    const bool mCanCallJava;
-
-    Mutex mLock;
-    Condition mWorkChangedCondition;
-    Condition mWorkDequeuedCondition;
-
-    bool mCanceled;
-    bool mFinished;
-    size_t mIdleThreads;
-    Vector<sp<WorkThread> > mWorkThreads;
-    Vector<WorkUnit*> mWorkUnits;
-};
-
-}; // namespace android
-
-#endif // _LIBS_UTILS_WORK_QUEUE_H
diff --git a/include/utils/ZipFileCRO.h b/include/utils/ZipFileCRO.h
deleted file mode 100644
index 3e42a95..0000000
--- a/include/utils/ZipFileCRO.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// C API for ead-only access to Zip archives, with minimal heap allocation.
-//
-#ifndef __LIBS_ZIPFILECRO_H
-#define __LIBS_ZIPFILECRO_H
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <utils/Compat.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Trivial typedef to ensure that ZipFileCRO is not treated as a simple integer.
- */
-typedef void* ZipFileCRO;
-
-/*
- * Trivial typedef to ensure that ZipEntryCRO is not treated as a simple
- * integer.  We use NULL to indicate an invalid value.
- */
-typedef void* ZipEntryCRO;
-
-extern ZipFileCRO ZipFileXRO_open(const char* path);
-
-extern void ZipFileCRO_destroy(ZipFileCRO zip);
-
-extern ZipEntryCRO ZipFileCRO_findEntryByName(ZipFileCRO zip,
-        const char* fileName);
-
-extern bool ZipFileCRO_getEntryInfo(ZipFileCRO zip, ZipEntryCRO entry,
-        int* pMethod, size_t* pUncompLen,
-        size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32);
-
-extern bool ZipFileCRO_uncompressEntry(ZipFileCRO zip, ZipEntryCRO entry, int fd);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*__LIBS_ZIPFILECRO_H*/
diff --git a/include/utils/ZipFileRO.h b/include/utils/ZipFileRO.h
deleted file mode 100644
index 547e36a..0000000
--- a/include/utils/ZipFileRO.h
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Read-only access to Zip archives, with minimal heap allocation.
- *
- * This is similar to the more-complete ZipFile class, but no attempt
- * has been made to make them interchangeable.  This class operates under
- * a very different set of assumptions and constraints.
- *
- * One such assumption is that if you're getting file descriptors for
- * use with this class as a child of a fork() operation, you must be on
- * a pread() to guarantee correct operation. This is because pread() can
- * atomically read at a file offset without worrying about a lock around an
- * lseek() + read() pair.
- */
-#ifndef __LIBS_ZIPFILERO_H
-#define __LIBS_ZIPFILERO_H
-
-#include <utils/Compat.h>
-#include <utils/Errors.h>
-#include <utils/FileMap.h>
-#include <utils/threads.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <time.h>
-
-namespace android {
-
-/*
- * Trivial typedef to ensure that ZipEntryRO is not treated as a simple
- * integer.  We use NULL to indicate an invalid value.
- */
-typedef void* ZipEntryRO;
-
-/*
- * Open a Zip archive for reading.
- *
- * We want "open" and "find entry by name" to be fast operations, and we
- * want to use as little memory as possible.  We memory-map the file,
- * and load a hash table with pointers to the filenames (which aren't
- * null-terminated).  The other fields are at a fixed offset from the
- * filename, so we don't need to extract those (but we do need to byte-read
- * and endian-swap them every time we want them).
- *
- * To speed comparisons when doing a lookup by name, we could make the mapping
- * "private" (copy-on-write) and null-terminate the filenames after verifying
- * the record structure.  However, this requires a private mapping of
- * every page that the Central Directory touches.  Easier to tuck a copy
- * of the string length into the hash table entry.
- *
- * NOTE: If this is used on file descriptors inherited from a fork() operation,
- * you must be on a platform that implements pread() to guarantee correctness
- * on the shared file descriptors.
- */
-class ZipFileRO {
-public:
-    ZipFileRO()
-        : mFd(-1), mFileName(NULL), mFileLength(-1),
-          mDirectoryMap(NULL),
-          mNumEntries(-1), mDirectoryOffset(-1),
-          mHashTableSize(-1), mHashTable(NULL)
-        {}
-
-    ~ZipFileRO();
-
-    /*
-     * Open an archive.
-     */
-    status_t open(const char* zipFileName);
-
-    /*
-     * Find an entry, by name.  Returns the entry identifier, or NULL if
-     * not found.
-     *
-     * If two entries have the same name, one will be chosen at semi-random.
-     */
-    ZipEntryRO findEntryByName(const char* fileName) const;
-
-    /*
-     * Return the #of entries in the Zip archive.
-     */
-    int getNumEntries(void) const {
-        return mNumEntries;
-    }
-
-    /*
-     * Return the Nth entry.  Zip file entries are not stored in sorted
-     * order, and updated entries may appear at the end, so anyone walking
-     * the archive needs to avoid making ordering assumptions.  We take
-     * that further by returning the Nth non-empty entry in the hash table
-     * rather than the Nth entry in the archive.
-     *
-     * Valid values are [0..numEntries).
-     *
-     * [This is currently O(n).  If it needs to be fast we can allocate an
-     * additional data structure or provide an iterator interface.]
-     */
-    ZipEntryRO findEntryByIndex(int idx) const;
-
-    /*
-     * Copy the filename into the supplied buffer.  Returns 0 on success,
-     * -1 if "entry" is invalid, or the filename length if it didn't fit.  The
-     * length, and the returned string, include the null-termination.
-     */
-    int getEntryFileName(ZipEntryRO entry, char* buffer, int bufLen) const;
-
-    /*
-     * Get the vital stats for an entry.  Pass in NULL pointers for anything
-     * you don't need.
-     *
-     * "*pOffset" holds the Zip file offset of the entry's data.
-     *
-     * Returns "false" if "entry" is bogus or if the data in the Zip file
-     * appears to be bad.
-     */
-    bool getEntryInfo(ZipEntryRO entry, int* pMethod, size_t* pUncompLen,
-        size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32) const;
-
-    /*
-     * Create a new FileMap object that maps a subset of the archive.  For
-     * an uncompressed entry this effectively provides a pointer to the
-     * actual data, for a compressed entry this provides the input buffer
-     * for inflate().
-     */
-    FileMap* createEntryFileMap(ZipEntryRO entry) const;
-
-    /*
-     * Uncompress the data into a buffer.  Depending on the compression
-     * format, this is either an "inflate" operation or a memcpy.
-     *
-     * Use "uncompLen" from getEntryInfo() to determine the required
-     * buffer size.
-     *
-     * Returns "true" on success.
-     */
-    bool uncompressEntry(ZipEntryRO entry, void* buffer) const;
-
-    /*
-     * Uncompress the data to an open file descriptor.
-     */
-    bool uncompressEntry(ZipEntryRO entry, int fd) const;
-
-    /* Zip compression methods we support */
-    enum {
-        kCompressStored     = 0,        // no compression
-        kCompressDeflated   = 8,        // standard deflate
-    };
-
-    /*
-     * Utility function: uncompress deflated data, buffer to buffer.
-     */
-    static bool inflateBuffer(void* outBuf, const void* inBuf,
-        size_t uncompLen, size_t compLen);
-
-    /*
-     * Utility function: uncompress deflated data, buffer to fd.
-     */
-    static bool inflateBuffer(int fd, const void* inBuf,
-        size_t uncompLen, size_t compLen);
-
-    /*
-     * Utility function to convert ZIP's time format to a timespec struct.
-     */
-    static inline void zipTimeToTimespec(long when, struct tm* timespec) {
-        const long date = when >> 16;
-        timespec->tm_year = ((date >> 9) & 0x7F) + 80; // Zip is years since 1980
-        timespec->tm_mon = (date >> 5) & 0x0F;
-        timespec->tm_mday = date & 0x1F;
-
-        timespec->tm_hour = (when >> 11) & 0x1F;
-        timespec->tm_min = (when >> 5) & 0x3F;
-        timespec->tm_sec = (when & 0x1F) << 1;
-    }
-
-    /*
-     * Some basic functions for raw data manipulation.  "LE" means
-     * Little Endian.
-     */
-    static inline unsigned short get2LE(const unsigned char* buf) {
-        return buf[0] | (buf[1] << 8);
-    }
-    static inline unsigned long get4LE(const unsigned char* buf) {
-        return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
-    }
-
-private:
-    /* these are private and not defined */ 
-    ZipFileRO(const ZipFileRO& src);
-    ZipFileRO& operator=(const ZipFileRO& src);
-
-    /* locate and parse the central directory */
-    bool mapCentralDirectory(void);
-
-    /* parse the archive, prepping internal structures */
-    bool parseZipArchive(void);
-
-    /* add a new entry to the hash table */
-    void addToHash(const char* str, int strLen, unsigned int hash);
-
-    /* compute string hash code */
-    static unsigned int computeHash(const char* str, int len);
-
-    /* convert a ZipEntryRO back to a hash table index */
-    int entryToIndex(const ZipEntryRO entry) const;
-
-    /*
-     * One entry in the hash table.
-     */
-    typedef struct HashEntry {
-        const char*     name;
-        unsigned short  nameLen;
-        //unsigned int    hash;
-    } HashEntry;
-
-    /* open Zip archive */
-    int         mFd;
-
-    /* Lock for handling the file descriptor (seeks, etc) */
-    mutable Mutex mFdLock;
-
-    /* zip file name */
-    char*       mFileName;
-
-    /* length of file */
-    size_t      mFileLength;
-
-    /* mapped file */
-    FileMap*    mDirectoryMap;
-
-    /* number of entries in the Zip archive */
-    int         mNumEntries;
-
-    /* CD directory offset in the Zip archive */
-    off64_t     mDirectoryOffset;
-
-    /*
-     * We know how many entries are in the Zip archive, so we have a
-     * fixed-size hash table.  We probe for an empty slot.
-     */
-    int         mHashTableSize;
-    HashEntry*  mHashTable;
-};
-
-}; // namespace android
-
-#endif /*__LIBS_ZIPFILERO_H*/
diff --git a/include/utils/ZipUtils.h b/include/utils/ZipUtils.h
deleted file mode 100644
index 42c42b6..0000000
--- a/include/utils/ZipUtils.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Miscellaneous zip/gzip utility functions.
-//
-#ifndef __LIBS_ZIPUTILS_H
-#define __LIBS_ZIPUTILS_H
-
-#include <stdio.h>
-
-namespace android {
-
-/*
- * Container class for utility functions, primarily for namespace reasons.
- */
-class ZipUtils {
-public:
-    /*
-     * General utility function for uncompressing "deflate" data from a file
-     * to a buffer.
-     */
-    static bool inflateToBuffer(int fd, void* buf, long uncompressedLen,
-        long compressedLen);
-    static bool inflateToBuffer(FILE* fp, void* buf, long uncompressedLen,
-        long compressedLen);
-
-    /*
-     * Someday we might want to make this generic and handle bzip2 ".bz2"
-     * files too.
-     *
-     * We could declare gzip to be a sub-class of zip that has exactly
-     * one always-compressed entry, but we currently want to treat Zip
-     * and gzip as distinct, so there's no value.
-     *
-     * The zlib library has some gzip utilities, but it has no interface
-     * for extracting the uncompressed length of the file (you do *not*
-     * want to gzseek to the end).
-     *
-     * Pass in a seeked file pointer for the gzip file.  If this is a gzip
-     * file, we set our return values appropriately and return "true" with
-     * the file seeked to the start of the compressed data.
-     */
-    static bool examineGzip(FILE* fp, int* pCompressionMethod,
-        long* pUncompressedLen, long* pCompressedLen, unsigned long* pCRC32);
-
-private:
-    ZipUtils() {}
-    ~ZipUtils() {}
-};
-
-}; // namespace android
-
-#endif /*__LIBS_ZIPUTILS_H*/
diff --git a/include/utils/misc.h b/include/utils/misc.h
index f1aa432..6cccec3 100644
--- a/include/utils/misc.h
+++ b/include/utils/misc.h
@@ -20,7 +20,6 @@
 #ifndef _LIBS_UTILS_MISC_H
 #define _LIBS_UTILS_MISC_H
 
-#include <sys/time.h>
 #include <utils/Endian.h>
 
 /* get #of elements in a static array */
@@ -30,26 +29,6 @@
 
 namespace android {
 
-/*
- * Some utility functions for working with files.  These could be made
- * part of a "File" class.
- */
-typedef enum FileType {
-    kFileTypeUnknown = 0,
-    kFileTypeNonexistent,       // i.e. ENOENT
-    kFileTypeRegular,
-    kFileTypeDirectory,
-    kFileTypeCharDev,
-    kFileTypeBlockDev,
-    kFileTypeFifo,
-    kFileTypeSymlink,
-    kFileTypeSocket,
-} FileType;
-/* get the file's type; follows symlinks */
-FileType getFileType(const char* fileName);
-/* get the file's modification date; returns -1 w/errno set on failure */
-time_t getFileModDate(const char* fileName);
-
 typedef void (*sysprop_change_callback)(void);
 void add_sysprop_change_callback(sysprop_change_callback cb, int priority);
 void report_sysprop_change();
diff --git a/libs/binder/Android.mk b/libs/binder/Android.mk
index 994d3db..4c8820e 100644
--- a/libs/binder/Android.mk
+++ b/libs/binder/Android.mk
@@ -17,6 +17,8 @@
     AppOpsManager.cpp \
     Binder.cpp \
     BpBinder.cpp \
+    BufferedTextOutput.cpp \
+    Debug.cpp \
     IAppOpsCallback.cpp \
     IAppOpsService.cpp \
     IInterface.cpp \
@@ -30,7 +32,8 @@
     Parcel.cpp \
     PermissionCache.cpp \
     ProcessState.cpp \
-    Static.cpp
+    Static.cpp \
+    TextOutput.cpp \
 
 LOCAL_PATH:= $(call my-dir)
 
diff --git a/libs/utils/BufferedTextOutput.cpp b/libs/binder/BufferedTextOutput.cpp
similarity index 98%
rename from libs/utils/BufferedTextOutput.cpp
rename to libs/binder/BufferedTextOutput.cpp
index 989662e..2d493c1 100644
--- a/libs/utils/BufferedTextOutput.cpp
+++ b/libs/binder/BufferedTextOutput.cpp
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-#include <utils/BufferedTextOutput.h>
+#include <binder/BufferedTextOutput.h>
+#include <binder/Debug.h>
 
 #include <utils/Atomic.h>
-#include <utils/Debug.h>
 #include <utils/Log.h>
 #include <utils/RefBase.h>
 #include <utils/Vector.h>
 #include <cutils/threads.h>
 
-#include <private/utils/Static.h>
+#include <private/binder/Static.h>
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/libs/utils/Debug.cpp b/libs/binder/Debug.cpp
similarity index 96%
rename from libs/utils/Debug.cpp
rename to libs/binder/Debug.cpp
index e8ac983..a8b6e83 100644
--- a/libs/utils/Debug.cpp
+++ b/libs/binder/Debug.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include <utils/Debug.h>
+#include <binder/Debug.h>
 
 #include <utils/misc.h>
 
@@ -70,20 +70,6 @@
     return out;
 }
 
-static inline char makeupperhexdigit(uint32_t val)
-{
-    return "0123456789ABCDEF"[val&0xF];
-}
-
-static char* appendupperhexnum(uint32_t val, char* out)
-{
-    for( int32_t i=28; i>=0; i-=4 ) {
-        *out++ = makeupperhexdigit( val>>i );
-    }
-    *out = 0;
-    return out;
-}
-
 static char* appendcharornum(char c, char* out, bool skipzero = true)
 {
     if (skipzero && c == 0) return out;
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 2ffa927..5951a3f 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -20,10 +20,11 @@
 
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
+#include <binder/TextOutput.h>
+
 #include <cutils/sched_policy.h>
 #include <utils/Debug.h>
 #include <utils/Log.h>
-#include <utils/TextOutput.h>
 #include <utils/threads.h>
 
 #include <private/binder/binder_module.h>
@@ -361,12 +362,12 @@
     return err;
 }
 
-int IPCThreadState::getCallingPid()
+int IPCThreadState::getCallingPid() const
 {
     return mCallingPid;
 }
 
-int IPCThreadState::getCallingUid()
+int IPCThreadState::getCallingUid() const
 {
     return mCallingUid;
 }
@@ -417,6 +418,60 @@
     talkWithDriver(false);
 }
 
+status_t IPCThreadState::getAndExecuteCommand()
+{
+    status_t result;
+    int32_t cmd;
+
+    result = talkWithDriver();
+    if (result >= NO_ERROR) {
+        size_t IN = mIn.dataAvail();
+        if (IN < sizeof(int32_t)) return result;
+        cmd = mIn.readInt32();
+        IF_LOG_COMMANDS() {
+            alog << "Processing top-level Command: "
+                 << getReturnString(cmd) << endl;
+        }
+
+        result = executeCommand(cmd);
+
+        // After executing the command, ensure that the thread is returned to the
+        // foreground cgroup before rejoining the pool.  The driver takes care of
+        // restoring the priority, but doesn't do anything with cgroups so we
+        // need to take care of that here in userspace.  Note that we do make
+        // sure to go in the foreground after executing a transaction, but
+        // there are other callbacks into user code that could have changed
+        // our group so we want to make absolutely sure it is put back.
+        set_sched_policy(mMyThreadId, SP_FOREGROUND);
+    }
+
+    return result;
+}
+
+// When we've cleared the incoming command queue, process any pending derefs
+void IPCThreadState::processPendingDerefs()
+{
+    if (mIn.dataPosition() >= mIn.dataSize()) {
+        size_t numPending = mPendingWeakDerefs.size();
+        if (numPending > 0) {
+            for (size_t i = 0; i < numPending; i++) {
+                RefBase::weakref_type* refs = mPendingWeakDerefs[i];
+                refs->decWeak(mProcess.get());
+            }
+            mPendingWeakDerefs.clear();
+        }
+
+        numPending = mPendingStrongDerefs.size();
+        if (numPending > 0) {
+            for (size_t i = 0; i < numPending; i++) {
+                BBinder* obj = mPendingStrongDerefs[i];
+                obj->decStrong(mProcess.get());
+            }
+            mPendingStrongDerefs.clear();
+        }
+    }
+}
+
 void IPCThreadState::joinThreadPool(bool isMain)
 {
     LOG_THREADPOOL("**** THREAD %p (PID %d) IS JOINING THE THREAD POOL\n", (void*)pthread_self(), getpid());
@@ -430,57 +485,16 @@
         
     status_t result;
     do {
-        int32_t cmd;
-        
-        // When we've cleared the incoming command queue, process any pending derefs
-        if (mIn.dataPosition() >= mIn.dataSize()) {
-            size_t numPending = mPendingWeakDerefs.size();
-            if (numPending > 0) {
-                for (size_t i = 0; i < numPending; i++) {
-                    RefBase::weakref_type* refs = mPendingWeakDerefs[i];
-                    refs->decWeak(mProcess.get());
-                }
-                mPendingWeakDerefs.clear();
-            }
-
-            numPending = mPendingStrongDerefs.size();
-            if (numPending > 0) {
-                for (size_t i = 0; i < numPending; i++) {
-                    BBinder* obj = mPendingStrongDerefs[i];
-                    obj->decStrong(mProcess.get());
-                }
-                mPendingStrongDerefs.clear();
-            }
-        }
-
+        processPendingDerefs();
         // now get the next command to be processed, waiting if necessary
-        result = talkWithDriver();
-        if (result >= NO_ERROR) {
-            size_t IN = mIn.dataAvail();
-            if (IN < sizeof(int32_t)) continue;
-            cmd = mIn.readInt32();
-            IF_LOG_COMMANDS() {
-                alog << "Processing top-level Command: "
-                    << getReturnString(cmd) << endl;
-            }
+        result = getAndExecuteCommand();
 
-
-            result = executeCommand(cmd);
-        } else if (result != TIMED_OUT && result != -ECONNREFUSED && result != -EBADF) {
-            ALOGE("talkWithDriver(fd=%d) returned unexpected error %d, aborting",
+        if (result < NO_ERROR && result != TIMED_OUT && result != -ECONNREFUSED && result != -EBADF) {
+            ALOGE("getAndExecuteCommand(fd=%d) returned unexpected error %d, aborting",
                   mProcess->mDriverFD, result);
             abort();
         }
         
-        // After executing the command, ensure that the thread is returned to the
-        // foreground cgroup before rejoining the pool.  The driver takes care of
-        // restoring the priority, but doesn't do anything with cgroups so we
-        // need to take care of that here in userspace.  Note that we do make
-        // sure to go in the foreground after executing a transaction, but
-        // there are other callbacks into user code that could have changed
-        // our group so we want to make absolutely sure it is put back.
-        set_sched_policy(mMyThreadId, SP_FOREGROUND);
-
         // Let this thread exit the thread pool if it is no longer
         // needed and it is not the main process thread.
         if(result == TIMED_OUT && !isMain) {
@@ -495,6 +509,30 @@
     talkWithDriver(false);
 }
 
+int IPCThreadState::setupPolling(int* fd)
+{
+    if (mProcess->mDriverFD <= 0) {
+        return -EBADF;
+    }
+
+    mOut.writeInt32(BC_ENTER_LOOPER);
+    *fd = mProcess->mDriverFD;
+    return 0;
+}
+
+status_t IPCThreadState::handlePolledCommands()
+{
+    status_t result;
+
+    do {
+        result = getAndExecuteCommand();
+    } while (mIn.dataPosition() < mIn.dataSize());
+
+    processPendingDerefs();
+    flushCommands();
+    return result;
+}
+
 void IPCThreadState::stopProcess(bool immediate)
 {
     //ALOGI("**** STOPPING PROCESS");
@@ -825,7 +863,7 @@
     IF_LOG_COMMANDS() {
         alog << "Our err: " << (void*)err << ", write consumed: "
             << bwr.write_consumed << " (of " << mOut.dataSize()
-			<< "), read consumed: " << bwr.read_consumed << endl;
+                        << "), read consumed: " << bwr.read_consumed << endl;
     }
 
     if (err >= NO_ERROR) {
@@ -1103,16 +1141,16 @@
 
 void IPCThreadState::threadDestructor(void *st)
 {
-	IPCThreadState* const self = static_cast<IPCThreadState*>(st);
-	if (self) {
-		self->flushCommands();
+        IPCThreadState* const self = static_cast<IPCThreadState*>(st);
+        if (self) {
+                self->flushCommands();
 #if defined(HAVE_ANDROID_OS)
         if (self->mProcess->mDriverFD > 0) {
             ioctl(self->mProcess->mDriverFD, BINDER_THREAD_EXIT, 0);
         }
 #endif
-		delete self;
-	}
+                delete self;
+        }
 }
 
 
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index c7bdcbc..359742c 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -22,12 +22,13 @@
 #include <binder/IPCThreadState.h>
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
-#include <utils/Debug.h>
 #include <binder/ProcessState.h>
+#include <binder/TextOutput.h>
+
+#include <utils/Debug.h>
 #include <utils/Log.h>
 #include <utils/String8.h>
 #include <utils/String16.h>
-#include <utils/TextOutput.h>
 #include <utils/misc.h>
 #include <utils/Flattenable.h>
 #include <cutils/ashmem.h>
diff --git a/libs/binder/Static.cpp b/libs/binder/Static.cpp
index 12b0308..2062692 100644
--- a/libs/binder/Static.cpp
+++ b/libs/binder/Static.cpp
@@ -19,30 +19,76 @@
 
 #include <private/binder/Static.h>
 
+#include <binder/BufferedTextOutput.h>
 #include <binder/IPCThreadState.h>
 #include <utils/Log.h>
 
 namespace android {
 
+// ------------ Text output streams
+
+Vector<int32_t> gTextBuffers;
+
+class LogTextOutput : public BufferedTextOutput
+{
+public:
+    LogTextOutput() : BufferedTextOutput(MULTITHREADED) { }
+    virtual ~LogTextOutput() { };
+
+protected:
+    virtual status_t writeLines(const struct iovec& vec, size_t N)
+    {
+        //android_writevLog(&vec, N);       <-- this is now a no-op
+        if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
+        ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
+        return NO_ERROR;
+    }
+};
+
+class FdTextOutput : public BufferedTextOutput
+{
+public:
+    FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
+    virtual ~FdTextOutput() { };
+
+protected:
+    virtual status_t writeLines(const struct iovec& vec, size_t N)
+    {
+        writev(mFD, &vec, N);
+        return NO_ERROR;
+    }
+
+private:
+    int mFD;
+};
+
+static LogTextOutput gLogTextOutput;
+static FdTextOutput gStdoutTextOutput(STDOUT_FILENO);
+static FdTextOutput gStderrTextOutput(STDERR_FILENO);
+
+TextOutput& alog(gLogTextOutput);
+TextOutput& aout(gStdoutTextOutput);
+TextOutput& aerr(gStderrTextOutput);
+
 // ------------ ProcessState.cpp
 
 Mutex gProcessMutex;
 sp<ProcessState> gProcess;
 
-class LibUtilsIPCtStatics
+class LibBinderIPCtStatics
 {
 public:
-    LibUtilsIPCtStatics()
+    LibBinderIPCtStatics()
     {
     }
     
-    ~LibUtilsIPCtStatics()
+    ~LibBinderIPCtStatics()
     {
         IPCThreadState::shutdown();
     }
 };
 
-static LibUtilsIPCtStatics gIPCStatics;
+static LibBinderIPCtStatics gIPCStatics;
 
 // ------------ ServiceManager.cpp
 
diff --git a/libs/utils/TextOutput.cpp b/libs/binder/TextOutput.cpp
similarity index 91%
rename from libs/utils/TextOutput.cpp
rename to libs/binder/TextOutput.cpp
index e04823d..db3e858 100644
--- a/libs/utils/TextOutput.cpp
+++ b/libs/binder/TextOutput.cpp
@@ -14,9 +14,12 @@
  * limitations under the License.
  */
 
-#include <utils/TextOutput.h>
+#include <binder/TextOutput.h>
 
-#include <utils/Debug.h>
+#include <binder/Debug.h>
+
+#include <utils/String8.h>
+#include <utils/String16.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -119,6 +122,18 @@
     return to;
 }
 
+TextOutput& operator<<(TextOutput& to, const String8& val)
+{
+    to << val.string();
+    return to;
+}
+
+TextOutput& operator<<(TextOutput& to, const String16& val)
+{
+    to << String8(val).string();
+    return to;
+}
+
 static void textOutputPrinter(void* cookie, const char* txt)
 {
     ((TextOutput*)cookie)->print(txt, strlen(txt));
diff --git a/libs/cpustats/Android.mk b/libs/cpustats/Android.mk
deleted file mode 100644
index b506353..0000000
--- a/libs/cpustats/Android.mk
+++ /dev/null
@@ -1,11 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES :=     \
-        CentralTendencyStatistics.cpp \
-        ThreadCpuUsage.cpp
-
-LOCAL_MODULE := libcpustats
-
-include $(BUILD_STATIC_LIBRARY)
diff --git a/libs/cpustats/CentralTendencyStatistics.cpp b/libs/cpustats/CentralTendencyStatistics.cpp
deleted file mode 100644
index 42ab62b..0000000
--- a/libs/cpustats/CentralTendencyStatistics.cpp
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-
-#include <cpustats/CentralTendencyStatistics.h>
-
-void CentralTendencyStatistics::sample(double x)
-{
-    // update min and max
-    if (x < mMinimum)
-        mMinimum = x;
-    if (x > mMaximum)
-        mMaximum = x;
-    // Knuth
-    if (mN == 0) {
-        mMean = 0;
-    }
-    ++mN;
-    double delta = x - mMean;
-    mMean += delta / mN;
-    mM2 += delta * (x - mMean);
-}
-
-void CentralTendencyStatistics::reset()
-{
-    mMean = NAN;
-    mMedian = NAN;
-    mMinimum = INFINITY;
-    mMaximum = -INFINITY;
-    mN = 0;
-    mM2 = 0;
-    mVariance = NAN;
-    mVarianceKnownForN = 0;
-    mStddev = NAN;
-    mStddevKnownForN = 0;
-}
-
-double CentralTendencyStatistics::variance() const
-{
-    double variance;
-    if (mVarianceKnownForN != mN) {
-        if (mN > 1) {
-            // double variance_n = M2/n;
-            variance = mM2 / (mN - 1);
-        } else {
-            variance = NAN;
-        }
-        mVariance = variance;
-        mVarianceKnownForN = mN;
-    } else {
-        variance = mVariance;
-    }
-    return variance;
-}
-
-double CentralTendencyStatistics::stddev() const
-{
-    double stddev;
-    if (mStddevKnownForN != mN) {
-        stddev = sqrt(variance());
-        mStddev = stddev;
-        mStddevKnownForN = mN;
-    } else {
-        stddev = mStddev;
-    }
-    return stddev;
-}
diff --git a/libs/cpustats/ThreadCpuUsage.cpp b/libs/cpustats/ThreadCpuUsage.cpp
deleted file mode 100644
index 637402a..0000000
--- a/libs/cpustats/ThreadCpuUsage.cpp
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "ThreadCpuUsage"
-//#define LOG_NDEBUG 0
-
-#include <errno.h>
-#include <stdlib.h>
-#include <time.h>
-
-#include <utils/Debug.h>
-#include <utils/Log.h>
-
-#include <cpustats/ThreadCpuUsage.h>
-
-namespace android {
-
-bool ThreadCpuUsage::setEnabled(bool isEnabled)
-{
-    bool wasEnabled = mIsEnabled;
-    // only do something if there is a change
-    if (isEnabled != wasEnabled) {
-        ALOGV("setEnabled(%d)", isEnabled);
-        int rc;
-        // enabling
-        if (isEnabled) {
-            rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &mPreviousTs);
-            if (rc) {
-                ALOGE("clock_gettime(CLOCK_THREAD_CPUTIME_ID) errno=%d", errno);
-                isEnabled = false;
-            } else {
-                mWasEverEnabled = true;
-                // record wall clock time at first enable
-                if (!mMonotonicKnown) {
-                    rc = clock_gettime(CLOCK_MONOTONIC, &mMonotonicTs);
-                    if (rc) {
-                        ALOGE("clock_gettime(CLOCK_MONOTONIC) errno=%d", errno);
-                    } else {
-                        mMonotonicKnown = true;
-                    }
-                }
-            }
-        // disabling
-        } else {
-            struct timespec ts;
-            rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
-            if (rc) {
-                ALOGE("clock_gettime(CLOCK_THREAD_CPUTIME_ID) errno=%d", errno);
-            } else {
-                long long delta = (ts.tv_sec - mPreviousTs.tv_sec) * 1000000000LL +
-                        (ts.tv_nsec - mPreviousTs.tv_nsec);
-                mAccumulator += delta;
-#if 0
-                mPreviousTs = ts;
-#endif
-            }
-        }
-        mIsEnabled = isEnabled;
-    }
-    return wasEnabled;
-}
-
-bool ThreadCpuUsage::sampleAndEnable(double& ns)
-{
-    bool ret;
-    bool wasEverEnabled = mWasEverEnabled;
-    if (enable()) {
-        // already enabled, so add a new sample relative to previous
-        return sample(ns);
-    } else if (wasEverEnabled) {
-        // was disabled, but add sample for accumulated time while enabled
-        ns = (double) mAccumulator;
-        mAccumulator = 0;
-        ALOGV("sampleAndEnable %.0f", ns);
-        return true;
-    } else {
-        // first time called
-        ns = 0.0;
-        ALOGV("sampleAndEnable false");
-        return false;
-    }
-}
-
-bool ThreadCpuUsage::sample(double &ns)
-{
-    if (mWasEverEnabled) {
-        if (mIsEnabled) {
-            struct timespec ts;
-            int rc;
-            rc = clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
-            if (rc) {
-                ALOGE("clock_gettime(CLOCK_THREAD_CPUTIME_ID) errno=%d", errno);
-                ns = 0.0;
-                return false;
-            } else {
-                long long delta = (ts.tv_sec - mPreviousTs.tv_sec) * 1000000000LL +
-                        (ts.tv_nsec - mPreviousTs.tv_nsec);
-                mAccumulator += delta;
-                mPreviousTs = ts;
-            }
-        } else {
-            mWasEverEnabled = false;
-        }
-        ns = (double) mAccumulator;
-        ALOGV("sample %.0f", ns);
-        mAccumulator = 0;
-        return true;
-    } else {
-        ALOGW("Can't add sample because measurements have never been enabled");
-        ns = 0.0;
-        return false;
-    }
-}
-
-long long ThreadCpuUsage::elapsed() const
-{
-    long long elapsed;
-    if (mMonotonicKnown) {
-        struct timespec ts;
-        int rc;
-        rc = clock_gettime(CLOCK_MONOTONIC, &ts);
-        if (rc) {
-            ALOGE("clock_gettime(CLOCK_MONOTONIC) errno=%d", errno);
-            elapsed = 0;
-        } else {
-            // mMonotonicTs is updated only at first enable and resetStatistics
-            elapsed = (ts.tv_sec - mMonotonicTs.tv_sec) * 1000000000LL +
-                    (ts.tv_nsec - mMonotonicTs.tv_nsec);
-        }
-    } else {
-        ALOGW("Can't compute elapsed time because measurements have never been enabled");
-        elapsed = 0;
-    }
-    ALOGV("elapsed %lld", elapsed);
-    return elapsed;
-}
-
-void ThreadCpuUsage::resetElapsed()
-{
-    ALOGV("resetElapsed");
-    if (mMonotonicKnown) {
-        int rc;
-        rc = clock_gettime(CLOCK_MONOTONIC, &mMonotonicTs);
-        if (rc) {
-            ALOGE("clock_gettime(CLOCK_MONOTONIC) errno=%d", errno);
-            mMonotonicKnown = false;
-        }
-    }
-}
-
-/*static*/
-int ThreadCpuUsage::sScalingFds[ThreadCpuUsage::MAX_CPU];
-pthread_once_t ThreadCpuUsage::sOnceControl = PTHREAD_ONCE_INIT;
-int ThreadCpuUsage::sKernelMax;
-pthread_mutex_t ThreadCpuUsage::sMutex = PTHREAD_MUTEX_INITIALIZER;
-
-/*static*/
-void ThreadCpuUsage::init()
-{
-    // read the number of CPUs
-    sKernelMax = 1;
-    int fd = open("/sys/devices/system/cpu/kernel_max", O_RDONLY);
-    if (fd >= 0) {
-#define KERNEL_MAX_SIZE 12
-        char kernelMax[KERNEL_MAX_SIZE];
-        ssize_t actual = read(fd, kernelMax, sizeof(kernelMax));
-        if (actual >= 2 && kernelMax[actual-1] == '\n') {
-            sKernelMax = atoi(kernelMax);
-            if (sKernelMax >= MAX_CPU - 1) {
-                ALOGW("kernel_max %d but MAX_CPU %d", sKernelMax, MAX_CPU);
-                sKernelMax = MAX_CPU;
-            } else if (sKernelMax < 0) {
-                ALOGW("kernel_max invalid %d", sKernelMax);
-                sKernelMax = 1;
-            } else {
-                ++sKernelMax;
-                ALOGV("number of CPUs %d", sKernelMax);
-            }
-        } else {
-            ALOGW("Can't read number of CPUs");
-        }
-        (void) close(fd);
-    } else {
-        ALOGW("Can't open number of CPUs");
-    }
-    int i;
-    for (i = 0; i < MAX_CPU; ++i) {
-        sScalingFds[i] = -1;
-    }
-}
-
-uint32_t ThreadCpuUsage::getCpukHz(int cpuNum)
-{
-    if (cpuNum < 0 || cpuNum >= MAX_CPU) {
-        ALOGW("getCpukHz called with invalid CPU %d", cpuNum);
-        return 0;
-    }
-    // double-checked locking idiom is not broken for atomic values such as fd
-    int fd = sScalingFds[cpuNum];
-    if (fd < 0) {
-        // some kernels can't open a scaling file until hot plug complete
-        pthread_mutex_lock(&sMutex);
-        fd = sScalingFds[cpuNum];
-        if (fd < 0) {
-#define FREQ_SIZE 64
-            char freq_path[FREQ_SIZE];
-#define FREQ_DIGIT 27
-            COMPILE_TIME_ASSERT_FUNCTION_SCOPE(MAX_CPU <= 10);
-#define FREQ_PATH "/sys/devices/system/cpu/cpu?/cpufreq/scaling_cur_freq"
-            strlcpy(freq_path, FREQ_PATH, sizeof(freq_path));
-            freq_path[FREQ_DIGIT] = cpuNum + '0';
-            fd = open(freq_path, O_RDONLY | O_CLOEXEC);
-            // keep this fd until process exit or exec
-            sScalingFds[cpuNum] = fd;
-        }
-        pthread_mutex_unlock(&sMutex);
-        if (fd < 0) {
-            ALOGW("getCpukHz can't open CPU %d", cpuNum);
-            return 0;
-        }
-    }
-#define KHZ_SIZE 12
-    char kHz[KHZ_SIZE];   // kHz base 10
-    ssize_t actual = pread(fd, kHz, sizeof(kHz), (off_t) 0);
-    uint32_t ret;
-    if (actual >= 2 && kHz[actual-1] == '\n') {
-        ret = atoi(kHz);
-    } else {
-        ret = 0;
-    }
-    if (ret != mCurrentkHz[cpuNum]) {
-        if (ret > 0) {
-            ALOGV("CPU %d frequency %u kHz", cpuNum, ret);
-        } else {
-            ALOGW("Can't read CPU %d frequency", cpuNum);
-        }
-        mCurrentkHz[cpuNum] = ret;
-    }
-    return ret;
-}
-
-}   // namespace android
diff --git a/libs/gui/BufferItemConsumer.cpp b/libs/gui/BufferItemConsumer.cpp
index 7db1b84..f5b2c7e 100644
--- a/libs/gui/BufferItemConsumer.cpp
+++ b/libs/gui/BufferItemConsumer.cpp
@@ -29,9 +29,9 @@
 
 namespace android {
 
-BufferItemConsumer::BufferItemConsumer(uint32_t consumerUsage,
-        int bufferCount, bool synchronousMode) :
-    ConsumerBase(new BufferQueue(true) )
+BufferItemConsumer::BufferItemConsumer(const sp<BufferQueue>& bq,
+        uint32_t consumerUsage, int bufferCount, bool synchronousMode) :
+    ConsumerBase(bq)
 {
     mBufferQueue->setConsumerUsageBits(consumerUsage);
     mBufferQueue->setSynchronousMode(synchronousMode);
@@ -47,14 +47,15 @@
     mBufferQueue->setConsumerName(name);
 }
 
-status_t BufferItemConsumer::acquireBuffer(BufferItem *item, bool waitForFence) {
+status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
+        nsecs_t presentWhen, bool waitForFence) {
     status_t err;
 
     if (!item) return BAD_VALUE;
 
     Mutex::Autolock _l(mMutex);
 
-    err = acquireBufferLocked(item);
+    err = acquireBufferLocked(item, presentWhen);
     if (err != OK) {
         if (err != NO_BUFFER_AVAILABLE) {
             BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
@@ -82,9 +83,9 @@
 
     Mutex::Autolock _l(mMutex);
 
-    err = addReleaseFenceLocked(item.mBuf, releaseFence);
+    err = addReleaseFenceLocked(item.mBuf, item.mGraphicBuffer, releaseFence);
 
-    err = releaseBufferLocked(item.mBuf, EGL_NO_DISPLAY,
+    err = releaseBufferLocked(item.mBuf, item.mGraphicBuffer, EGL_NO_DISPLAY,
             EGL_NO_SYNC_KHR);
     if (err != OK) {
         BI_LOGE("Failed to release buffer: %s (%d)",
diff --git a/libs/gui/BufferQueue.cpp b/libs/gui/BufferQueue.cpp
index b4c7231..8d4b174 100644
--- a/libs/gui/BufferQueue.cpp
+++ b/libs/gui/BufferQueue.cpp
@@ -178,12 +178,10 @@
         }
 
         // here we're guaranteed that the client doesn't have dequeued buffers
-        // and will release all of its buffer references.
-        //
-        // XXX: Should this use drainQueueAndFreeBuffersLocked instead?
+        // and will release all of its buffer references.  We don't clear the
+        // queue, however, so currently queued buffers still get displayed.
         freeAllBuffersLocked();
         mOverrideMaxBufferCount = bufferCount;
-        mBufferHasBeenQueued = false;
         mDequeueCondition.broadcast();
         listener = mConsumerListener;
     } // scope for lock
@@ -418,6 +416,7 @@
                 return NO_INIT;
             }
 
+            mSlots[*outBuf].mFrameNumber = ~0;
             mSlots[*outBuf].mGraphicBuffer = graphicBuffer;
         }
     }
@@ -435,7 +434,8 @@
         eglDestroySyncKHR(dpy, eglFence);
     }
 
-    ST_LOGV("dequeueBuffer: returning slot=%d buf=%p flags=%#x", *outBuf,
+    ST_LOGV("dequeueBuffer: returning slot=%d/%llu buf=%p flags=%#x", *outBuf,
+            mSlots[*outBuf].mFrameNumber,
             mSlots[*outBuf].mGraphicBuffer->handle, returnFlags);
 
     return returnFlags;
@@ -491,15 +491,22 @@
         return BAD_VALUE;
     }
 
-    ST_LOGV("queueBuffer: slot=%d time=%#llx crop=[%d,%d,%d,%d] tr=%#x "
-            "scale=%s",
-            buf, timestamp, crop.left, crop.top, crop.right, crop.bottom,
-            transform, scalingModeName(scalingMode));
+    switch (scalingMode) {
+        case NATIVE_WINDOW_SCALING_MODE_FREEZE:
+        case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
+        case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
+        case NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP:
+            break;
+        default:
+            ST_LOGE("unknown scaling mode: %d", scalingMode);
+            return -EINVAL;
+    }
 
     sp<ConsumerListener> listener;
 
     { // scope for the lock
         Mutex::Autolock lock(mMutex);
+
         if (mAbandoned) {
             ST_LOGE("queueBuffer: BufferQueue has been abandoned!");
             return NO_INIT;
@@ -519,6 +526,12 @@
             return -EINVAL;
         }
 
+        ST_LOGV("queueBuffer: slot=%d/%llu time=%#llx crop=[%d,%d,%d,%d] "
+                "tr=%#x scale=%s",
+                buf, mFrameCounter + 1, timestamp,
+                crop.left, crop.top, crop.right, crop.bottom,
+                transform, scalingModeName(scalingMode));
+
         const sp<GraphicBuffer>& graphicBuffer(mSlots[buf].mGraphicBuffer);
         Rect bufferRect(graphicBuffer->getWidth(), graphicBuffer->getHeight());
         Rect croppedCrop;
@@ -529,9 +542,25 @@
             return -EINVAL;
         }
 
+        mSlots[buf].mFence = fence;
+        mSlots[buf].mBufferState = BufferSlot::QUEUED;
+        mFrameCounter++;
+        mSlots[buf].mFrameNumber = mFrameCounter;
+
+        BufferItem item;
+        item.mAcquireCalled = mSlots[buf].mAcquireCalled;
+        item.mGraphicBuffer = mSlots[buf].mGraphicBuffer;
+        item.mCrop = crop;
+        item.mTransform = transform;
+        item.mScalingMode = scalingMode;
+        item.mTimestamp = timestamp;
+        item.mFrameNumber = mFrameCounter;
+        item.mBuf = buf;
+        item.mFence = fence;
+
         if (mSynchronousMode) {
             // In synchronous mode we queue all buffers in a FIFO.
-            mQueue.push_back(buf);
+            mQueue.push_back(item);
 
             // Synchronous mode always signals that an additional frame should
             // be consumed.
@@ -539,7 +568,7 @@
         } else {
             // In asynchronous mode we only keep the most recent buffer.
             if (mQueue.empty()) {
-                mQueue.push_back(buf);
+                mQueue.push_back(item);
 
                 // Asynchronous mode only signals that a frame should be
                 // consumed if no previous frame was pending. If a frame were
@@ -547,34 +576,15 @@
                 listener = mConsumerListener;
             } else {
                 Fifo::iterator front(mQueue.begin());
-                // buffer currently queued is freed
-                mSlots[*front].mBufferState = BufferSlot::FREE;
+                // buffer slot currently queued is marked free if still tracked
+                if (stillTracking(front)) {
+                    mSlots[front->mBuf].mBufferState = BufferSlot::FREE;
+                }
                 // and we record the new buffer index in the queued list
-                *front = buf;
+                *front = item;
             }
         }
 
-        mSlots[buf].mTimestamp = timestamp;
-        mSlots[buf].mCrop = crop;
-        mSlots[buf].mTransform = transform;
-        mSlots[buf].mFence = fence;
-
-        switch (scalingMode) {
-            case NATIVE_WINDOW_SCALING_MODE_FREEZE:
-            case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
-            case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
-                break;
-            default:
-                ST_LOGE("unknown scaling mode: %d (ignoring)", scalingMode);
-                scalingMode = mSlots[buf].mScalingMode;
-                break;
-        }
-
-        mSlots[buf].mBufferState = BufferSlot::QUEUED;
-        mSlots[buf].mScalingMode = scalingMode;
-        mFrameCounter++;
-        mSlots[buf].mFrameNumber = mFrameCounter;
-
         mBufferHasBeenQueued = true;
         mDequeueCondition.broadcast();
 
@@ -707,36 +717,36 @@
     return err;
 }
 
-void BufferQueue::dump(String8& result) const
-{
-    char buffer[1024];
-    BufferQueue::dump(result, "", buffer, 1024);
+void BufferQueue::dump(String8& result) const {
+    BufferQueue::dump(result, "");
 }
 
-void BufferQueue::dump(String8& result, const char* prefix,
-        char* buffer, size_t SIZE) const
-{
+void BufferQueue::dump(String8& result, const char* prefix) const {
     Mutex::Autolock _l(mMutex);
 
     String8 fifo;
     int fifoSize = 0;
     Fifo::const_iterator i(mQueue.begin());
     while (i != mQueue.end()) {
-       snprintf(buffer, SIZE, "%02d ", *i++);
-       fifoSize++;
-       fifo.append(buffer);
+        fifo.appendFormat("%02d:%p crop=[%d,%d,%d,%d], "
+                "xform=0x%02x, time=%#llx, scale=%s\n",
+                i->mBuf, i->mGraphicBuffer.get(),
+                i->mCrop.left, i->mCrop.top, i->mCrop.right,
+                i->mCrop.bottom, i->mTransform, i->mTimestamp,
+                scalingModeName(i->mScalingMode)
+                );
+        i++;
+        fifoSize++;
     }
 
     int maxBufferCount = getMaxBufferCountLocked();
 
-    snprintf(buffer, SIZE,
+    result.appendFormat(
             "%s-BufferQueue maxBufferCount=%d, mSynchronousMode=%d, default-size=[%dx%d], "
             "default-format=%d, transform-hint=%02x, FIFO(%d)={%s}\n",
             prefix, maxBufferCount, mSynchronousMode, mDefaultWidth,
             mDefaultHeight, mDefaultBufferFormat, mTransformHint,
             fifoSize, fifo.string());
-    result.append(buffer);
-
 
     struct {
         const char * operator()(int state) const {
@@ -752,25 +762,19 @@
 
     for (int i=0 ; i<maxBufferCount ; i++) {
         const BufferSlot& slot(mSlots[i]);
-        snprintf(buffer, SIZE,
-                "%s%s[%02d] "
-                "state=%-8s, crop=[%d,%d,%d,%d], "
-                "xform=0x%02x, time=%#llx, scale=%s",
+        result.appendFormat(
+            "%s%s[%02d:%p] state=%-8s",
                 prefix, (slot.mBufferState == BufferSlot::ACQUIRED)?">":" ", i,
-                stateName(slot.mBufferState),
-                slot.mCrop.left, slot.mCrop.top, slot.mCrop.right,
-                slot.mCrop.bottom, slot.mTransform, slot.mTimestamp,
-                scalingModeName(slot.mScalingMode)
+                slot.mGraphicBuffer.get(),
+                stateName(slot.mBufferState)
         );
-        result.append(buffer);
 
         const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);
         if (buf != NULL) {
-            snprintf(buffer, SIZE,
+            result.appendFormat(
                     ", %p [%4ux%4u:%4u,%3X]",
                     buf->handle, buf->width, buf->height, buf->stride,
                     buf->format);
-            result.append(buffer);
         }
         result.append("\n");
     }
@@ -795,16 +799,15 @@
 }
 
 void BufferQueue::freeAllBuffersLocked() {
-    ALOGW_IF(!mQueue.isEmpty(),
-            "freeAllBuffersLocked called but mQueue is not empty");
-    mQueue.clear();
+    ALOGD_IF(!mQueue.isEmpty(),
+            "freeAllBuffersLocked called with non-empty mQueue");
     mBufferHasBeenQueued = false;
     for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
         freeBufferLocked(i);
     }
 }
 
-status_t BufferQueue::acquireBuffer(BufferItem *buffer) {
+status_t BufferQueue::acquireBuffer(BufferItem *buffer, nsecs_t presentWhen) {
     ATRACE_CALL();
     Mutex::Autolock _l(mMutex);
 
@@ -827,42 +830,73 @@
     // check if queue is empty
     // In asynchronous mode the list is guaranteed to be one buffer
     // deep, while in synchronous mode we use the oldest buffer.
-    if (!mQueue.empty()) {
-        Fifo::iterator front(mQueue.begin());
-        int buf = *front;
+    if (mQueue.empty()) {
+        return NO_BUFFER_AVAILABLE;
+    }
 
-        ATRACE_BUFFER_INDEX(buf);
+    Fifo::iterator front(mQueue.begin());
+    int buf = front->mBuf;
 
-        if (mSlots[buf].mAcquireCalled) {
-            buffer->mGraphicBuffer = NULL;
-        } else {
-            buffer->mGraphicBuffer = mSlots[buf].mGraphicBuffer;
-        }
-        buffer->mCrop = mSlots[buf].mCrop;
-        buffer->mTransform = mSlots[buf].mTransform;
-        buffer->mScalingMode = mSlots[buf].mScalingMode;
-        buffer->mFrameNumber = mSlots[buf].mFrameNumber;
-        buffer->mTimestamp = mSlots[buf].mTimestamp;
-        buffer->mBuf = buf;
-        buffer->mFence = mSlots[buf].mFence;
+    // Compare the buffer's desired presentation time to the predicted
+    // actual display time.
+    //
+    // The "presentWhen" argument indicates when the buffer is expected
+    // to be presented on-screen.  If the buffer's desired-present time
+    // is earlier (less) than presentWhen, meaning it'll be displayed
+    // on time or possibly late, we acquire and return it.  If we don't want
+    // to display it until after the presentWhen time, we return PRESENT_LATER
+    // without acquiring it.
+    //
+    // To be safe, we don't refuse to acquire the buffer if presentWhen is
+    // more than one second in the future beyond the desired present time
+    // (i.e. we'd be holding the buffer for a really long time).
+    const int MAX_FUTURE_NSEC = 1000000000ULL;
+    nsecs_t desiredPresent = front->mTimestamp;
+    if (presentWhen != 0 && desiredPresent > presentWhen &&
+            desiredPresent - presentWhen < MAX_FUTURE_NSEC)
+    {
+        ALOGV("pts defer: des=%lld when=%lld (%lld) now=%lld",
+                desiredPresent, presentWhen, desiredPresent - presentWhen,
+                systemTime(CLOCK_MONOTONIC));
+        return PRESENT_LATER;
+    }
+    if (presentWhen != 0) {
+        ALOGV("pts accept: %p[%d] sig=%lld des=%lld when=%lld (%lld)",
+                mSlots, buf, mSlots[buf].mFence->getSignalTime(),
+                desiredPresent, presentWhen, desiredPresent - presentWhen);
+    }
 
+    *buffer = *front;
+    ATRACE_BUFFER_INDEX(buf);
+
+    ST_LOGV("acquireBuffer: acquiring { slot=%d/%llu, buffer=%p }",
+            front->mBuf, front->mFrameNumber,
+            front->mGraphicBuffer->handle);
+    // if front buffer still being tracked update slot state
+    if (stillTracking(front)) {
         mSlots[buf].mAcquireCalled = true;
         mSlots[buf].mNeedsCleanupOnRelease = false;
         mSlots[buf].mBufferState = BufferSlot::ACQUIRED;
         mSlots[buf].mFence = Fence::NO_FENCE;
-
-        mQueue.erase(front);
-        mDequeueCondition.broadcast();
-
-        ATRACE_INT(mConsumerName.string(), mQueue.size());
-    } else {
-        return NO_BUFFER_AVAILABLE;
     }
 
+    // If the buffer has previously been acquired by the consumer, set
+    // mGraphicBuffer to NULL to avoid unnecessarily remapping this
+    // buffer on the consumer side.
+    if (buffer->mAcquireCalled) {
+        buffer->mGraphicBuffer = NULL;
+    }
+
+    mQueue.erase(front);
+    mDequeueCondition.broadcast();
+
+    ATRACE_INT(mConsumerName.string(), mQueue.size());
+
     return NO_ERROR;
 }
 
-status_t BufferQueue::releaseBuffer(int buf, EGLDisplay display,
+status_t BufferQueue::releaseBuffer(
+        int buf, uint64_t frameNumber, EGLDisplay display,
         EGLSyncKHR eglFence, const sp<Fence>& fence) {
     ATRACE_CALL();
     ATRACE_BUFFER_INDEX(buf);
@@ -873,12 +907,35 @@
         return BAD_VALUE;
     }
 
-    mSlots[buf].mEglDisplay = display;
-    mSlots[buf].mEglFence = eglFence;
-    mSlots[buf].mFence = fence;
+    // Check if this buffer slot is on the queue
+    bool slotQueued = false;
+    Fifo::iterator front(mQueue.begin());
+    while (front != mQueue.end() && !slotQueued) {
+        if (front->mBuf == buf)
+            slotQueued = true;
+        front++;
+    }
+
+    // If the frame number has changed because buffer has been reallocated,
+    // we can ignore this releaseBuffer for the old buffer.
+    if (frameNumber != mSlots[buf].mFrameNumber) {
+        // This should only occur if new buffer is still in the queue
+        ALOGE_IF(!slotQueued,
+                "received old buffer(#%lld) after new buffer(#%lld) on same "
+                "slot #%d already acquired", frameNumber,
+                mSlots[buf].mFrameNumber, buf);
+        return STALE_BUFFER_SLOT;
+    }
+    // this should never happen
+    ALOGE_IF(slotQueued,
+            "received new buffer(#%lld) on slot #%d that has not yet been "
+            "acquired", frameNumber, buf);
 
     // The buffer can now only be released if its in the acquired state
     if (mSlots[buf].mBufferState == BufferSlot::ACQUIRED) {
+        mSlots[buf].mEglDisplay = display;
+        mSlots[buf].mEglFence = eglFence;
+        mSlots[buf].mFence = fence;
         mSlots[buf].mBufferState = BufferSlot::FREE;
     } else if (mSlots[buf].mNeedsCleanupOnRelease) {
         ST_LOGV("releasing a stale buf %d its state was %d", buf, mSlots[buf].mBufferState);
@@ -943,6 +1000,17 @@
             mask |= 1 << i;
         }
     }
+
+    // Remove buffers in flight (on the queue) from the mask where acquire has
+    // been called, as the consumer will not receive the buffer address, so
+    // it should not free these slots.
+    Fifo::iterator front(mQueue.begin());
+    while (front != mQueue.end()) {
+        if (front->mAcquireCalled)
+            mask &= ~(1 << front->mBuf);
+        front++;
+    }
+
     *slotMask = mask;
 
     ST_LOGV("getReleasedBuffers: returning mask %#x", mask);
@@ -985,20 +1053,6 @@
     return NO_ERROR;
 }
 
-void BufferQueue::freeAllBuffersExceptHeadLocked() {
-    int head = -1;
-    if (!mQueue.empty()) {
-        Fifo::iterator front(mQueue.begin());
-        head = *front;
-    }
-    mBufferHasBeenQueued = false;
-    for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
-        if (i != head) {
-            freeBufferLocked(i);
-        }
-    }
-}
-
 status_t BufferQueue::drainQueueLocked() {
     while (mSynchronousMode && mQueue.size() > 1) {
         mDequeueCondition.wait(mMutex);
@@ -1017,11 +1071,7 @@
 status_t BufferQueue::drainQueueAndFreeBuffersLocked() {
     status_t err = drainQueueLocked();
     if (err == NO_ERROR) {
-        if (mQueue.empty()) {
-            freeAllBuffersLocked();
-        } else {
-            freeAllBuffersExceptHeadLocked();
-        }
+        freeAllBuffersLocked();
     }
     return err;
 }
@@ -1061,6 +1111,22 @@
     return maxBufferCount;
 }
 
+bool BufferQueue::stillTracking(const BufferItem *item) const {
+    const BufferSlot &slot = mSlots[item->mBuf];
+
+    ST_LOGV("stillTracking?: item: { slot=%d/%llu, buffer=%p }, "
+            "slot: { slot=%d/%llu, buffer=%p }",
+            item->mBuf, item->mFrameNumber,
+            (item->mGraphicBuffer.get() ? item->mGraphicBuffer->handle : 0),
+            item->mBuf, slot.mFrameNumber,
+            (slot.mGraphicBuffer.get() ? slot.mGraphicBuffer->handle : 0));
+
+    // Compare item with its original buffer slot.  We can check the slot
+    // as the buffer would not be moved to a different slot by the producer.
+    return (slot.mGraphicBuffer != NULL &&
+            item->mGraphicBuffer->handle == slot.mGraphicBuffer->handle);
+}
+
 BufferQueue::ProxyConsumerListener::ProxyConsumerListener(
         const wp<BufferQueue::ConsumerListener>& consumerListener):
         mConsumerListener(consumerListener) {}
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index 4937b17..deb2646 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -95,6 +95,7 @@
     CB_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
     mSlots[slotIndex].mGraphicBuffer = 0;
     mSlots[slotIndex].mFence = Fence::NO_FENCE;
+    mSlots[slotIndex].mFrameNumber = 0;
 }
 
 // Used for refactoring, should not be in final interface
@@ -165,28 +166,25 @@
 }
 
 void ConsumerBase::dump(String8& result) const {
-    char buffer[1024];
-    dump(result, "", buffer, 1024);
+    dump(result, "");
 }
 
-void ConsumerBase::dump(String8& result, const char* prefix,
-        char* buffer, size_t size) const {
+void ConsumerBase::dump(String8& result, const char* prefix) const {
     Mutex::Autolock _l(mMutex);
-    dumpLocked(result, prefix, buffer, size);
+    dumpLocked(result, prefix);
 }
 
-void ConsumerBase::dumpLocked(String8& result, const char* prefix,
-        char* buffer, size_t SIZE) const {
-    snprintf(buffer, SIZE, "%smAbandoned=%d\n", prefix, int(mAbandoned));
-    result.append(buffer);
+void ConsumerBase::dumpLocked(String8& result, const char* prefix) const {
+    result.appendFormat("%smAbandoned=%d\n", prefix, int(mAbandoned));
 
     if (!mAbandoned) {
-        mBufferQueue->dump(result, prefix, buffer, SIZE);
+        mBufferQueue->dump(result, prefix);
     }
 }
 
-status_t ConsumerBase::acquireBufferLocked(BufferQueue::BufferItem *item) {
-    status_t err = mBufferQueue->acquireBuffer(item);
+status_t ConsumerBase::acquireBufferLocked(BufferQueue::BufferItem *item,
+        nsecs_t presentWhen) {
+    status_t err = mBufferQueue->acquireBuffer(item, presentWhen);
     if (err != NO_ERROR) {
         return err;
     }
@@ -195,21 +193,31 @@
         mSlots[item->mBuf].mGraphicBuffer = item->mGraphicBuffer;
     }
 
+    mSlots[item->mBuf].mFrameNumber = item->mFrameNumber;
     mSlots[item->mBuf].mFence = item->mFence;
 
-    CB_LOGV("acquireBufferLocked: -> slot=%d", item->mBuf);
+    CB_LOGV("acquireBufferLocked: -> slot=%d/%llu",
+            item->mBuf, item->mFrameNumber);
 
     return OK;
 }
 
-status_t ConsumerBase::addReleaseFence(int slot, const sp<Fence>& fence) {
+status_t ConsumerBase::addReleaseFence(int slot,
+        const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence) {
     Mutex::Autolock lock(mMutex);
-    return addReleaseFenceLocked(slot, fence);
+    return addReleaseFenceLocked(slot, graphicBuffer, fence);
 }
 
-status_t ConsumerBase::addReleaseFenceLocked(int slot, const sp<Fence>& fence) {
+status_t ConsumerBase::addReleaseFenceLocked(int slot,
+        const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence) {
     CB_LOGV("addReleaseFenceLocked: slot=%d", slot);
 
+    // If consumer no longer tracks this graphicBuffer, we can safely
+    // drop this fence, as it will never be received by the producer.
+    if (!stillTracking(slot, graphicBuffer)) {
+        return OK;
+    }
+
     if (!mSlots[slot].mFence.get()) {
         mSlots[slot].mFence = fence;
     } else {
@@ -229,11 +237,20 @@
     return OK;
 }
 
-status_t ConsumerBase::releaseBufferLocked(int slot, EGLDisplay display,
-       EGLSyncKHR eglFence) {
-    CB_LOGV("releaseBufferLocked: slot=%d", slot);
-    status_t err = mBufferQueue->releaseBuffer(slot, display, eglFence,
-            mSlots[slot].mFence);
+status_t ConsumerBase::releaseBufferLocked(
+        int slot, const sp<GraphicBuffer> graphicBuffer,
+        EGLDisplay display, EGLSyncKHR eglFence) {
+    // If consumer no longer tracks this graphicBuffer (we received a new
+    // buffer on the same slot), the buffer producer is definitely no longer
+    // tracking it.
+    if (!stillTracking(slot, graphicBuffer)) {
+        return OK;
+    }
+
+    CB_LOGV("releaseBufferLocked: slot=%d/%llu",
+            slot, mSlots[slot].mFrameNumber);
+    status_t err = mBufferQueue->releaseBuffer(slot, mSlots[slot].mFrameNumber,
+            display, eglFence, mSlots[slot].mFence);
     if (err == BufferQueue::STALE_BUFFER_SLOT) {
         freeBufferLocked(slot);
     }
@@ -243,4 +260,13 @@
     return err;
 }
 
+bool ConsumerBase::stillTracking(int slot,
+        const sp<GraphicBuffer> graphicBuffer) {
+    if (slot < 0 || slot >= BufferQueue::NUM_BUFFER_SLOTS) {
+        return false;
+    }
+    return (mSlots[slot].mGraphicBuffer != NULL &&
+            mSlots[slot].mGraphicBuffer->handle == graphicBuffer->handle);
+}
+
 } // namespace android
diff --git a/libs/gui/CpuConsumer.cpp b/libs/gui/CpuConsumer.cpp
index 0543649..adddfc2 100644
--- a/libs/gui/CpuConsumer.cpp
+++ b/libs/gui/CpuConsumer.cpp
@@ -30,8 +30,9 @@
 
 namespace android {
 
-CpuConsumer::CpuConsumer(uint32_t maxLockedBuffers, bool synchronousMode) :
-    ConsumerBase(new BufferQueue(true) ),
+CpuConsumer::CpuConsumer(const sp<BufferQueue>& bq,
+        uint32_t maxLockedBuffers, bool synchronousMode) :
+    ConsumerBase(bq),
     mMaxLockedBuffers(maxLockedBuffers),
     mCurrentLockedBuffers(0)
 {
@@ -55,6 +56,18 @@
     mBufferQueue->setConsumerName(name);
 }
 
+status_t CpuConsumer::setDefaultBufferSize(uint32_t width, uint32_t height)
+{
+    Mutex::Autolock _l(mMutex);
+    return mBufferQueue->setDefaultBufferSize(width, height);
+}
+
+status_t CpuConsumer::setDefaultBufferFormat(uint32_t defaultFormat)
+{
+    Mutex::Autolock _l(mMutex);
+    return mBufferQueue->setDefaultBufferFormat(defaultFormat);
+}
+
 status_t CpuConsumer::lockNextBuffer(LockedBuffer *nativeBuffer) {
     status_t err;
 
@@ -67,7 +80,7 @@
 
     Mutex::Autolock _l(mMutex);
 
-    err = acquireBufferLocked(&b);
+    err = acquireBufferLocked(&b, 0);
     if (err != OK) {
         if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
             return BAD_VALUE;
@@ -189,7 +202,9 @@
     // disconnected after this buffer was acquired.
     if (CC_LIKELY(mAcquiredBuffers[lockedIdx].mGraphicBuffer ==
             mSlots[buf].mGraphicBuffer)) {
-        releaseBufferLocked(buf, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
+        releaseBufferLocked(
+                buf, mAcquiredBuffers[lockedIdx].mGraphicBuffer,
+                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
     }
 
     AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx);
diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
index dc46a51..07f27c3 100644
--- a/libs/gui/GLConsumer.cpp
+++ b/libs/gui/GLConsumer.cpp
@@ -81,13 +81,6 @@
 GLConsumer::GLConsumer(const sp<BufferQueue>& bq, GLuint tex,
         GLenum texTarget, bool useFenceSync) :
     ConsumerBase(bq),
-    mUseFenceSync(useFenceSync),
-    mTexTarget(texTarget) {}
-
-
-GLConsumer::GLConsumer(GLuint tex, bool allowSynchronousMode,
-        GLenum texTarget, bool useFenceSync, const sp<BufferQueue> &bufferQueue) :
-    ConsumerBase(bufferQueue == 0 ? new BufferQueue(allowSynchronousMode) : bufferQueue),
     mCurrentTransform(0),
     mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
     mCurrentFence(Fence::NO_FENCE),
@@ -146,7 +139,7 @@
     // Acquire the next buffer.
     // In asynchronous mode the list is guaranteed to be one buffer
     // deep, while in synchronous mode we use the oldest buffer.
-    err = acquireBufferLocked(&item);
+    err = acquireBufferLocked(&item, 0);
     if (err != NO_ERROR) {
         if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
             // We always bind the texture even if we don't update its contents.
@@ -172,8 +165,9 @@
     return bindTextureImageLocked();
 }
 
-status_t GLConsumer::acquireBufferLocked(BufferQueue::BufferItem *item) {
-    status_t err = ConsumerBase::acquireBufferLocked(item);
+status_t GLConsumer::acquireBufferLocked(BufferQueue::BufferItem *item,
+        nsecs_t presentWhen) {
+    status_t err = ConsumerBase::acquireBufferLocked(item, presentWhen);
     if (err != NO_ERROR) {
         return err;
     }
@@ -195,12 +189,16 @@
     return NO_ERROR;
 }
 
-status_t GLConsumer::releaseBufferLocked(int buf, EGLDisplay display,
-       EGLSyncKHR eglFence) {
-    status_t err = ConsumerBase::releaseBufferLocked(buf, display, eglFence);
-
+status_t GLConsumer::releaseBufferLocked(int buf,
+        sp<GraphicBuffer> graphicBuffer,
+        EGLDisplay display, EGLSyncKHR eglFence) {
+    // release the buffer if it hasn't already been discarded by the
+    // BufferQueue. This can happen, for example, when the producer of this
+    // buffer has reallocated the original buffer slot after this buffer
+    // was acquired.
+    status_t err = ConsumerBase::releaseBufferLocked(
+            buf, graphicBuffer, display, eglFence);
     mEglSlots[buf].mEglFence = EGL_NO_SYNC_KHR;
-
     return err;
 }
 
@@ -244,7 +242,10 @@
     if (err != NO_ERROR) {
         // Release the buffer we just acquired.  It's not safe to
         // release the old buffer, so instead we just drop the new frame.
-        releaseBufferLocked(buf, mEglDisplay, EGL_NO_SYNC_KHR);
+        // As we are still under lock since acquireBuffer, it is safe to
+        // release by slot.
+        releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer,
+                mEglDisplay, EGL_NO_SYNC_KHR);
         return err;
     }
 
@@ -255,7 +256,8 @@
 
     // release old buffer
     if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
-        status_t status = releaseBufferLocked(mCurrentTexture, mEglDisplay,
+        status_t status = releaseBufferLocked(
+                mCurrentTexture, mCurrentTextureBuf, mEglDisplay,
                 mEglSlots[mCurrentTexture].mEglFence);
         if (status != NO_ERROR && status != BufferQueue::STALE_BUFFER_SLOT) {
             ST_LOGE("releaseAndUpdate: failed to release buffer: %s (%d)",
@@ -341,7 +343,8 @@
 void GLConsumer::setReleaseFence(const sp<Fence>& fence) {
     if (fence->isValid() &&
             mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
-        status_t err = addReleaseFence(mCurrentTexture, fence);
+        status_t err = addReleaseFence(mCurrentTexture,
+                mCurrentTextureBuf, fence);
         if (err != OK) {
             ST_LOGE("setReleaseFence: failed to add the fence: %s (%d)",
                     strerror(-err), err);
@@ -510,7 +513,8 @@
                 return UNKNOWN_ERROR;
             }
             sp<Fence> fence(new Fence(fenceFd));
-            status_t err = addReleaseFenceLocked(mCurrentTexture, fence);
+            status_t err = addReleaseFenceLocked(mCurrentTexture,
+                    mCurrentTextureBuf, fence);
             if (err != OK) {
                 ST_LOGE("syncForReleaseLocked: error adding release fence: "
                         "%s (%d)", strerror(-err), err);
@@ -894,18 +898,16 @@
     return mBufferQueue->setSynchronousMode(enabled);
 }
 
-void GLConsumer::dumpLocked(String8& result, const char* prefix,
-        char* buffer, size_t size) const
+void GLConsumer::dumpLocked(String8& result, const char* prefix) const
 {
-    snprintf(buffer, size,
+    result.appendFormat(
        "%smTexName=%d mCurrentTexture=%d\n"
        "%smCurrentCrop=[%d,%d,%d,%d] mCurrentTransform=%#x\n",
        prefix, mTexName, mCurrentTexture, prefix, mCurrentCrop.left,
        mCurrentCrop.top, mCurrentCrop.right, mCurrentCrop.bottom,
        mCurrentTransform);
-    result.append(buffer);
 
-    ConsumerBase::dumpLocked(result, prefix, buffer, size);
+    ConsumerBase::dumpLocked(result, prefix);
 }
 
 static void mtxMul(float out[16], const float a[16], const float b[16]) {
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index f345df8..94f21b6 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -633,7 +633,8 @@
 
 sp<CpuConsumer> ScreenshotClient::getCpuConsumer() const {
     if (mCpuConsumer == NULL) {
-        mCpuConsumer = new CpuConsumer(1);
+        sp<BufferQueue> bq = new BufferQueue();
+        mCpuConsumer = new CpuConsumer(bq, 1);
         mCpuConsumer->setName(String8("ScreenshotClient"));
     }
     return mCpuConsumer;
diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index 62d215b..9682987 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -80,7 +80,7 @@
                     GRALLOC_USAGE_SW_READ_OFTEN));
         ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
         ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
-        ASSERT_EQ(OK, mBQ->acquireBuffer(&item));
+        ASSERT_EQ(OK, mBQ->acquireBuffer(&item, 0));
     }
 
     ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
@@ -90,7 +90,7 @@
     ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
 
     // Acquire the third buffer, which should fail.
-    ASSERT_EQ(INVALID_OPERATION, mBQ->acquireBuffer(&item));
+    ASSERT_EQ(INVALID_OPERATION, mBQ->acquireBuffer(&item, 0));
 }
 
 TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithIllegalValues_ReturnsError) {
diff --git a/libs/gui/tests/CpuConsumer_test.cpp b/libs/gui/tests/CpuConsumer_test.cpp
index 73fdd04..f8a35b4 100644
--- a/libs/gui/tests/CpuConsumer_test.cpp
+++ b/libs/gui/tests/CpuConsumer_test.cpp
@@ -66,7 +66,8 @@
                 test_info->name(),
                 params.width, params.height,
                 params.maxLockedBuffers, params.format);
-        mCC = new CpuConsumer(params.maxLockedBuffers);
+        sp<BufferQueue> bq = new BufferQueue();
+        mCC = new CpuConsumer(bq, params.maxLockedBuffers);
         String8 name("CpuConsumer_Under_Test");
         mCC->setName(name);
         mSTC = new Surface(mCC->getProducerInterface());
diff --git a/libs/gui/tests/SurfaceTextureClient_test.cpp b/libs/gui/tests/SurfaceTextureClient_test.cpp
index 7376b4c..46bcb22 100644
--- a/libs/gui/tests/SurfaceTextureClient_test.cpp
+++ b/libs/gui/tests/SurfaceTextureClient_test.cpp
@@ -40,7 +40,8 @@
         ALOGV("Begin test: %s.%s", testInfo->test_case_name(),
                 testInfo->name());
 
-        mST = new GLConsumer(123);
+        sp<BufferQueue> bq = new BufferQueue();
+        mST = new GLConsumer(bq, 123);
         mSTC = new Surface(mST->getBufferQueue());
         mANW = mSTC;
 
@@ -715,7 +716,8 @@
         ASSERT_NE(EGL_NO_CONTEXT, mEglContext);
 
         for (int i = 0; i < NUM_SURFACE_TEXTURES; i++) {
-            sp<GLConsumer> st(new GLConsumer(i));
+            sp<BufferQueue> bq = new BufferQueue();
+            sp<GLConsumer> st(new GLConsumer(bq, i));
             sp<Surface> stc(new Surface(st->getBufferQueue()));
             mEglSurfaces[i] = eglCreateWindowSurface(mEglDisplay, myConfig,
                     static_cast<ANativeWindow*>(stc.get()), NULL);
diff --git a/libs/gui/tests/SurfaceTexture_test.cpp b/libs/gui/tests/SurfaceTexture_test.cpp
index dd6c435..d97521a 100644
--- a/libs/gui/tests/SurfaceTexture_test.cpp
+++ b/libs/gui/tests/SurfaceTexture_test.cpp
@@ -385,7 +385,8 @@
 
     virtual void SetUp() {
         GLTest::SetUp();
-        mGlConsumer = new GLConsumer(TEX_ID);
+        sp<BufferQueue> bq = new BufferQueue();
+        mGlConsumer = new GLConsumer(bq, TEX_ID);
         mSurface = new Surface(mGlConsumer->getBufferQueue());
         mANW = mSurface.get();
 
@@ -479,7 +480,8 @@
 
     virtual void SetUp() {
         GLTest::SetUp();
-        mST = new GLConsumer(TEX_ID);
+        sp<BufferQueue> bq = new BufferQueue();
+        mST = new GLConsumer(bq, TEX_ID);
         mSTC = new Surface(mST->getBufferQueue());
         mANW = mSTC;
         mTextureRenderer = new TextureRenderer(TEX_ID, mST);
diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index 429becf..953f6f9 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -87,7 +87,8 @@
     sp<ANativeWindow> anw(mSurface);
 
     // Verify the screenshot works with no protected buffers.
-    sp<CpuConsumer> consumer = new CpuConsumer(1);
+    sp<BufferQueue> bq = new BufferQueue();
+    sp<CpuConsumer> consumer = new CpuConsumer(bq, 1);
     sp<ISurfaceComposer> sf(ComposerService::getComposerService());
     sp<IBinder> display(sf->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain));
     ASSERT_EQ(NO_ERROR, sf->captureScreen(display, consumer->getBufferQueue(),
diff --git a/libs/input/Android.mk b/libs/input/Android.mk
new file mode 100644
index 0000000..944ac7f
--- /dev/null
+++ b/libs/input/Android.mk
@@ -0,0 +1,79 @@
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+
+# libinput is partially built for the host (used by build time keymap validation tool)
+# These files are common to host and target builds.
+
+commonSources := \
+    Input.cpp \
+    InputDevice.cpp \
+    Keyboard.cpp \
+    KeyCharacterMap.cpp \
+    KeyLayoutMap.cpp \
+    VirtualKeyMap.cpp
+
+deviceSources := \
+    $(commonSources) \
+    IInputFlinger.cpp \
+    InputTransport.cpp \
+    VelocityControl.cpp \
+    VelocityTracker.cpp
+
+hostSources := \
+    $(commonSources)
+
+# For the host
+# =====================================================
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= $(hostSources)
+
+LOCAL_MODULE:= libinput
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_HOST_STATIC_LIBRARY)
+
+
+# For the device
+# =====================================================
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= $(deviceSources)
+
+LOCAL_SHARED_LIBRARIES := \
+	liblog \
+	libcutils \
+	libutils \
+	libbinder
+
+LOCAL_MODULE:= libinput
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
+
+
+# Include subdirectory makefiles
+# ============================================================
+
+# If we're building with ONE_SHOT_MAKEFILE (mm, mmm), then what the framework
+# team really wants is to build the stuff defined by this makefile.
+ifeq (,$(ONE_SHOT_MAKEFILE))
+include $(call first-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/libs/input/IInputFlinger.cpp b/libs/input/IInputFlinger.cpp
new file mode 100644
index 0000000..e009731
--- /dev/null
+++ b/libs/input/IInputFlinger.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <input/IInputFlinger.h>
+
+
+namespace android {
+
+class BpInputFlinger : public BpInterface<IInputFlinger> {
+public:
+    BpInputFlinger(const sp<IBinder>& impl) :
+            BpInterface<IInputFlinger>(impl) { }
+
+    virtual status_t doSomething() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
+        remote()->transact(BnInputFlinger::DO_SOMETHING_TRANSACTION, data, &reply);
+        return reply.readInt32();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(InputFlinger, "android.input.IInputFlinger");
+
+
+status_t BnInputFlinger::onTransact(
+        uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+    switch(code) {
+    case DO_SOMETHING_TRANSACTION: {
+        CHECK_INTERFACE(IInputFlinger, data, reply);
+        reply->writeInt32(0);
+        break;
+    }
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+    return NO_ERROR;
+}
+
+};
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
new file mode 100644
index 0000000..6f53996
--- /dev/null
+++ b/libs/input/Input.cpp
@@ -0,0 +1,646 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Input"
+//#define LOG_NDEBUG 0
+
+#include <math.h>
+#include <limits.h>
+
+#include <input/Input.h>
+
+#ifdef HAVE_ANDROID_OS
+#include <binder/Parcel.h>
+#endif
+
+namespace android {
+
+// --- InputEvent ---
+
+void InputEvent::initialize(int32_t deviceId, int32_t source) {
+    mDeviceId = deviceId;
+    mSource = source;
+}
+
+void InputEvent::initialize(const InputEvent& from) {
+    mDeviceId = from.mDeviceId;
+    mSource = from.mSource;
+}
+
+// --- KeyEvent ---
+
+bool KeyEvent::hasDefaultAction(int32_t keyCode) {
+    switch (keyCode) {
+        case AKEYCODE_HOME:
+        case AKEYCODE_BACK:
+        case AKEYCODE_CALL:
+        case AKEYCODE_ENDCALL:
+        case AKEYCODE_VOLUME_UP:
+        case AKEYCODE_VOLUME_DOWN:
+        case AKEYCODE_VOLUME_MUTE:
+        case AKEYCODE_POWER:
+        case AKEYCODE_CAMERA:
+        case AKEYCODE_HEADSETHOOK:
+        case AKEYCODE_MENU:
+        case AKEYCODE_NOTIFICATION:
+        case AKEYCODE_FOCUS:
+        case AKEYCODE_SEARCH:
+        case AKEYCODE_MEDIA_PLAY:
+        case AKEYCODE_MEDIA_PAUSE:
+        case AKEYCODE_MEDIA_PLAY_PAUSE:
+        case AKEYCODE_MEDIA_STOP:
+        case AKEYCODE_MEDIA_NEXT:
+        case AKEYCODE_MEDIA_PREVIOUS:
+        case AKEYCODE_MEDIA_REWIND:
+        case AKEYCODE_MEDIA_RECORD:
+        case AKEYCODE_MEDIA_FAST_FORWARD:
+        case AKEYCODE_MUTE:
+        case AKEYCODE_BRIGHTNESS_DOWN:
+        case AKEYCODE_BRIGHTNESS_UP:
+        case AKEYCODE_MEDIA_AUDIO_TRACK:
+            return true;
+    }
+    
+    return false;
+}
+
+bool KeyEvent::hasDefaultAction() const {
+    return hasDefaultAction(getKeyCode());
+}
+
+bool KeyEvent::isSystemKey(int32_t keyCode) {
+    switch (keyCode) {
+        case AKEYCODE_MENU:
+        case AKEYCODE_SOFT_RIGHT:
+        case AKEYCODE_HOME:
+        case AKEYCODE_BACK:
+        case AKEYCODE_CALL:
+        case AKEYCODE_ENDCALL:
+        case AKEYCODE_VOLUME_UP:
+        case AKEYCODE_VOLUME_DOWN:
+        case AKEYCODE_VOLUME_MUTE:
+        case AKEYCODE_MUTE:
+        case AKEYCODE_POWER:
+        case AKEYCODE_HEADSETHOOK:
+        case AKEYCODE_MEDIA_PLAY:
+        case AKEYCODE_MEDIA_PAUSE:
+        case AKEYCODE_MEDIA_PLAY_PAUSE:
+        case AKEYCODE_MEDIA_STOP:
+        case AKEYCODE_MEDIA_NEXT:
+        case AKEYCODE_MEDIA_PREVIOUS:
+        case AKEYCODE_MEDIA_REWIND:
+        case AKEYCODE_MEDIA_RECORD:
+        case AKEYCODE_MEDIA_FAST_FORWARD:
+        case AKEYCODE_CAMERA:
+        case AKEYCODE_FOCUS:
+        case AKEYCODE_SEARCH:
+        case AKEYCODE_BRIGHTNESS_DOWN:
+        case AKEYCODE_BRIGHTNESS_UP:
+        case AKEYCODE_MEDIA_AUDIO_TRACK:
+            return true;
+    }
+    
+    return false;
+}
+
+bool KeyEvent::isSystemKey() const {
+    return isSystemKey(getKeyCode());
+}
+
+void KeyEvent::initialize(
+        int32_t deviceId,
+        int32_t source,
+        int32_t action,
+        int32_t flags,
+        int32_t keyCode,
+        int32_t scanCode,
+        int32_t metaState,
+        int32_t repeatCount,
+        nsecs_t downTime,
+        nsecs_t eventTime) {
+    InputEvent::initialize(deviceId, source);
+    mAction = action;
+    mFlags = flags;
+    mKeyCode = keyCode;
+    mScanCode = scanCode;
+    mMetaState = metaState;
+    mRepeatCount = repeatCount;
+    mDownTime = downTime;
+    mEventTime = eventTime;
+}
+
+void KeyEvent::initialize(const KeyEvent& from) {
+    InputEvent::initialize(from);
+    mAction = from.mAction;
+    mFlags = from.mFlags;
+    mKeyCode = from.mKeyCode;
+    mScanCode = from.mScanCode;
+    mMetaState = from.mMetaState;
+    mRepeatCount = from.mRepeatCount;
+    mDownTime = from.mDownTime;
+    mEventTime = from.mEventTime;
+}
+
+
+// --- PointerCoords ---
+
+float PointerCoords::getAxisValue(int32_t axis) const {
+    if (axis < 0 || axis > 63) {
+        return 0;
+    }
+
+    uint64_t axisBit = 1LL << axis;
+    if (!(bits & axisBit)) {
+        return 0;
+    }
+    uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL));
+    return values[index];
+}
+
+status_t PointerCoords::setAxisValue(int32_t axis, float value) {
+    if (axis < 0 || axis > 63) {
+        return NAME_NOT_FOUND;
+    }
+
+    uint64_t axisBit = 1LL << axis;
+    uint32_t index = __builtin_popcountll(bits & (axisBit - 1LL));
+    if (!(bits & axisBit)) {
+        if (value == 0) {
+            return OK; // axes with value 0 do not need to be stored
+        }
+        uint32_t count = __builtin_popcountll(bits);
+        if (count >= MAX_AXES) {
+            tooManyAxes(axis);
+            return NO_MEMORY;
+        }
+        bits |= axisBit;
+        for (uint32_t i = count; i > index; i--) {
+            values[i] = values[i - 1];
+        }
+    }
+    values[index] = value;
+    return OK;
+}
+
+static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) {
+    float value = c.getAxisValue(axis);
+    if (value != 0) {
+        c.setAxisValue(axis, value * scaleFactor);
+    }
+}
+
+void PointerCoords::scale(float scaleFactor) {
+    // No need to scale pressure or size since they are normalized.
+    // No need to scale orientation since it is meaningless to do so.
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_X, scaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_Y, scaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor);
+    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor);
+}
+
+#ifdef HAVE_ANDROID_OS
+status_t PointerCoords::readFromParcel(Parcel* parcel) {
+    bits = parcel->readInt64();
+
+    uint32_t count = __builtin_popcountll(bits);
+    if (count > MAX_AXES) {
+        return BAD_VALUE;
+    }
+
+    for (uint32_t i = 0; i < count; i++) {
+        values[i] = parcel->readFloat();
+    }
+    return OK;
+}
+
+status_t PointerCoords::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt64(bits);
+
+    uint32_t count = __builtin_popcountll(bits);
+    for (uint32_t i = 0; i < count; i++) {
+        parcel->writeFloat(values[i]);
+    }
+    return OK;
+}
+#endif
+
+void PointerCoords::tooManyAxes(int axis) {
+    ALOGW("Could not set value for axis %d because the PointerCoords structure is full and "
+            "cannot contain more than %d axis values.", axis, int(MAX_AXES));
+}
+
+bool PointerCoords::operator==(const PointerCoords& other) const {
+    if (bits != other.bits) {
+        return false;
+    }
+    uint32_t count = __builtin_popcountll(bits);
+    for (uint32_t i = 0; i < count; i++) {
+        if (values[i] != other.values[i]) {
+            return false;
+        }
+    }
+    return true;
+}
+
+void PointerCoords::copyFrom(const PointerCoords& other) {
+    bits = other.bits;
+    uint32_t count = __builtin_popcountll(bits);
+    for (uint32_t i = 0; i < count; i++) {
+        values[i] = other.values[i];
+    }
+}
+
+
+// --- PointerProperties ---
+
+bool PointerProperties::operator==(const PointerProperties& other) const {
+    return id == other.id
+            && toolType == other.toolType;
+}
+
+void PointerProperties::copyFrom(const PointerProperties& other) {
+    id = other.id;
+    toolType = other.toolType;
+}
+
+
+// --- MotionEvent ---
+
+void MotionEvent::initialize(
+        int32_t deviceId,
+        int32_t source,
+        int32_t action,
+        int32_t flags,
+        int32_t edgeFlags,
+        int32_t metaState,
+        int32_t buttonState,
+        float xOffset,
+        float yOffset,
+        float xPrecision,
+        float yPrecision,
+        nsecs_t downTime,
+        nsecs_t eventTime,
+        size_t pointerCount,
+        const PointerProperties* pointerProperties,
+        const PointerCoords* pointerCoords) {
+    InputEvent::initialize(deviceId, source);
+    mAction = action;
+    mFlags = flags;
+    mEdgeFlags = edgeFlags;
+    mMetaState = metaState;
+    mButtonState = buttonState;
+    mXOffset = xOffset;
+    mYOffset = yOffset;
+    mXPrecision = xPrecision;
+    mYPrecision = yPrecision;
+    mDownTime = downTime;
+    mPointerProperties.clear();
+    mPointerProperties.appendArray(pointerProperties, pointerCount);
+    mSampleEventTimes.clear();
+    mSamplePointerCoords.clear();
+    addSample(eventTime, pointerCoords);
+}
+
+void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) {
+    InputEvent::initialize(other->mDeviceId, other->mSource);
+    mAction = other->mAction;
+    mFlags = other->mFlags;
+    mEdgeFlags = other->mEdgeFlags;
+    mMetaState = other->mMetaState;
+    mButtonState = other->mButtonState;
+    mXOffset = other->mXOffset;
+    mYOffset = other->mYOffset;
+    mXPrecision = other->mXPrecision;
+    mYPrecision = other->mYPrecision;
+    mDownTime = other->mDownTime;
+    mPointerProperties = other->mPointerProperties;
+
+    if (keepHistory) {
+        mSampleEventTimes = other->mSampleEventTimes;
+        mSamplePointerCoords = other->mSamplePointerCoords;
+    } else {
+        mSampleEventTimes.clear();
+        mSampleEventTimes.push(other->getEventTime());
+        mSamplePointerCoords.clear();
+        size_t pointerCount = other->getPointerCount();
+        size_t historySize = other->getHistorySize();
+        mSamplePointerCoords.appendArray(other->mSamplePointerCoords.array()
+                + (historySize * pointerCount), pointerCount);
+    }
+}
+
+void MotionEvent::addSample(
+        int64_t eventTime,
+        const PointerCoords* pointerCoords) {
+    mSampleEventTimes.push(eventTime);
+    mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
+}
+
+const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const {
+    return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex];
+}
+
+float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const {
+    return getRawPointerCoords(pointerIndex)->getAxisValue(axis);
+}
+
+float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const {
+    float value = getRawPointerCoords(pointerIndex)->getAxisValue(axis);
+    switch (axis) {
+    case AMOTION_EVENT_AXIS_X:
+        return value + mXOffset;
+    case AMOTION_EVENT_AXIS_Y:
+        return value + mYOffset;
+    }
+    return value;
+}
+
+const PointerCoords* MotionEvent::getHistoricalRawPointerCoords(
+        size_t pointerIndex, size_t historicalIndex) const {
+    return &mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex];
+}
+
+float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
+        size_t historicalIndex) const {
+    return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
+}
+
+float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex,
+        size_t historicalIndex) const {
+    float value = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);
+    switch (axis) {
+    case AMOTION_EVENT_AXIS_X:
+        return value + mXOffset;
+    case AMOTION_EVENT_AXIS_Y:
+        return value + mYOffset;
+    }
+    return value;
+}
+
+ssize_t MotionEvent::findPointerIndex(int32_t pointerId) const {
+    size_t pointerCount = mPointerProperties.size();
+    for (size_t i = 0; i < pointerCount; i++) {
+        if (mPointerProperties.itemAt(i).id == pointerId) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+void MotionEvent::offsetLocation(float xOffset, float yOffset) {
+    mXOffset += xOffset;
+    mYOffset += yOffset;
+}
+
+void MotionEvent::scale(float scaleFactor) {
+    mXOffset *= scaleFactor;
+    mYOffset *= scaleFactor;
+    mXPrecision *= scaleFactor;
+    mYPrecision *= scaleFactor;
+
+    size_t numSamples = mSamplePointerCoords.size();
+    for (size_t i = 0; i < numSamples; i++) {
+        mSamplePointerCoords.editItemAt(i).scale(scaleFactor);
+    }
+}
+
+static void transformPoint(const float matrix[9], float x, float y, float *outX, float *outY) {
+    // Apply perspective transform like Skia.
+    float newX = matrix[0] * x + matrix[1] * y + matrix[2];
+    float newY = matrix[3] * x + matrix[4] * y + matrix[5];
+    float newZ = matrix[6] * x + matrix[7] * y + matrix[8];
+    if (newZ) {
+        newZ = 1.0f / newZ;
+    }
+    *outX = newX * newZ;
+    *outY = newY * newZ;
+}
+
+static float transformAngle(const float matrix[9], float angleRadians,
+        float originX, float originY) {
+    // Construct and transform a vector oriented at the specified clockwise angle from vertical.
+    // Coordinate system: down is increasing Y, right is increasing X.
+    float x = sinf(angleRadians);
+    float y = -cosf(angleRadians);
+    transformPoint(matrix, x, y, &x, &y);
+    x -= originX;
+    y -= originY;
+
+    // Derive the transformed vector's clockwise angle from vertical.
+    float result = atan2f(x, -y);
+    if (result < - M_PI_2) {
+        result += M_PI;
+    } else if (result > M_PI_2) {
+        result -= M_PI;
+    }
+    return result;
+}
+
+void MotionEvent::transform(const float matrix[9]) {
+    // The tricky part of this implementation is to preserve the value of
+    // rawX and rawY.  So we apply the transformation to the first point
+    // then derive an appropriate new X/Y offset that will preserve rawX
+     // and rawY for that point.
+    float oldXOffset = mXOffset;
+    float oldYOffset = mYOffset;
+    float newX, newY;
+    float rawX = getRawX(0);
+    float rawY = getRawY(0);
+    transformPoint(matrix, rawX + oldXOffset, rawY + oldYOffset, &newX, &newY);
+    mXOffset = newX - rawX;
+    mYOffset = newY - rawY;
+
+    // Determine how the origin is transformed by the matrix so that we
+    // can transform orientation vectors.
+    float originX, originY;
+    transformPoint(matrix, 0, 0, &originX, &originY);
+
+    // Apply the transformation to all samples.
+    size_t numSamples = mSamplePointerCoords.size();
+    for (size_t i = 0; i < numSamples; i++) {
+        PointerCoords& c = mSamplePointerCoords.editItemAt(i);
+        float x = c.getAxisValue(AMOTION_EVENT_AXIS_X) + oldXOffset;
+        float y = c.getAxisValue(AMOTION_EVENT_AXIS_Y) + oldYOffset;
+        transformPoint(matrix, x, y, &x, &y);
+        c.setAxisValue(AMOTION_EVENT_AXIS_X, x - mXOffset);
+        c.setAxisValue(AMOTION_EVENT_AXIS_Y, y - mYOffset);
+
+        float orientation = c.getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION);
+        c.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION,
+                transformAngle(matrix, orientation, originX, originY));
+    }
+}
+
+#ifdef HAVE_ANDROID_OS
+status_t MotionEvent::readFromParcel(Parcel* parcel) {
+    size_t pointerCount = parcel->readInt32();
+    size_t sampleCount = parcel->readInt32();
+    if (pointerCount == 0 || pointerCount > MAX_POINTERS || sampleCount == 0) {
+        return BAD_VALUE;
+    }
+
+    mDeviceId = parcel->readInt32();
+    mSource = parcel->readInt32();
+    mAction = parcel->readInt32();
+    mFlags = parcel->readInt32();
+    mEdgeFlags = parcel->readInt32();
+    mMetaState = parcel->readInt32();
+    mButtonState = parcel->readInt32();
+    mXOffset = parcel->readFloat();
+    mYOffset = parcel->readFloat();
+    mXPrecision = parcel->readFloat();
+    mYPrecision = parcel->readFloat();
+    mDownTime = parcel->readInt64();
+
+    mPointerProperties.clear();
+    mPointerProperties.setCapacity(pointerCount);
+    mSampleEventTimes.clear();
+    mSampleEventTimes.setCapacity(sampleCount);
+    mSamplePointerCoords.clear();
+    mSamplePointerCoords.setCapacity(sampleCount * pointerCount);
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        mPointerProperties.push();
+        PointerProperties& properties = mPointerProperties.editTop();
+        properties.id = parcel->readInt32();
+        properties.toolType = parcel->readInt32();
+    }
+
+    while (sampleCount-- > 0) {
+        mSampleEventTimes.push(parcel->readInt64());
+        for (size_t i = 0; i < pointerCount; i++) {
+            mSamplePointerCoords.push();
+            status_t status = mSamplePointerCoords.editTop().readFromParcel(parcel);
+            if (status) {
+                return status;
+            }
+        }
+    }
+    return OK;
+}
+
+status_t MotionEvent::writeToParcel(Parcel* parcel) const {
+    size_t pointerCount = mPointerProperties.size();
+    size_t sampleCount = mSampleEventTimes.size();
+
+    parcel->writeInt32(pointerCount);
+    parcel->writeInt32(sampleCount);
+
+    parcel->writeInt32(mDeviceId);
+    parcel->writeInt32(mSource);
+    parcel->writeInt32(mAction);
+    parcel->writeInt32(mFlags);
+    parcel->writeInt32(mEdgeFlags);
+    parcel->writeInt32(mMetaState);
+    parcel->writeInt32(mButtonState);
+    parcel->writeFloat(mXOffset);
+    parcel->writeFloat(mYOffset);
+    parcel->writeFloat(mXPrecision);
+    parcel->writeFloat(mYPrecision);
+    parcel->writeInt64(mDownTime);
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        const PointerProperties& properties = mPointerProperties.itemAt(i);
+        parcel->writeInt32(properties.id);
+        parcel->writeInt32(properties.toolType);
+    }
+
+    const PointerCoords* pc = mSamplePointerCoords.array();
+    for (size_t h = 0; h < sampleCount; h++) {
+        parcel->writeInt64(mSampleEventTimes.itemAt(h));
+        for (size_t i = 0; i < pointerCount; i++) {
+            status_t status = (pc++)->writeToParcel(parcel);
+            if (status) {
+                return status;
+            }
+        }
+    }
+    return OK;
+}
+#endif
+
+bool MotionEvent::isTouchEvent(int32_t source, int32_t action) {
+    if (source & AINPUT_SOURCE_CLASS_POINTER) {
+        // Specifically excludes HOVER_MOVE and SCROLL.
+        switch (action & AMOTION_EVENT_ACTION_MASK) {
+        case AMOTION_EVENT_ACTION_DOWN:
+        case AMOTION_EVENT_ACTION_MOVE:
+        case AMOTION_EVENT_ACTION_UP:
+        case AMOTION_EVENT_ACTION_POINTER_DOWN:
+        case AMOTION_EVENT_ACTION_POINTER_UP:
+        case AMOTION_EVENT_ACTION_CANCEL:
+        case AMOTION_EVENT_ACTION_OUTSIDE:
+            return true;
+        }
+    }
+    return false;
+}
+
+
+// --- PooledInputEventFactory ---
+
+PooledInputEventFactory::PooledInputEventFactory(size_t maxPoolSize) :
+        mMaxPoolSize(maxPoolSize) {
+}
+
+PooledInputEventFactory::~PooledInputEventFactory() {
+    for (size_t i = 0; i < mKeyEventPool.size(); i++) {
+        delete mKeyEventPool.itemAt(i);
+    }
+    for (size_t i = 0; i < mMotionEventPool.size(); i++) {
+        delete mMotionEventPool.itemAt(i);
+    }
+}
+
+KeyEvent* PooledInputEventFactory::createKeyEvent() {
+    if (!mKeyEventPool.isEmpty()) {
+        KeyEvent* event = mKeyEventPool.top();
+        mKeyEventPool.pop();
+        return event;
+    }
+    return new KeyEvent();
+}
+
+MotionEvent* PooledInputEventFactory::createMotionEvent() {
+    if (!mMotionEventPool.isEmpty()) {
+        MotionEvent* event = mMotionEventPool.top();
+        mMotionEventPool.pop();
+        return event;
+    }
+    return new MotionEvent();
+}
+
+void PooledInputEventFactory::recycle(InputEvent* event) {
+    switch (event->getType()) {
+    case AINPUT_EVENT_TYPE_KEY:
+        if (mKeyEventPool.size() < mMaxPoolSize) {
+            mKeyEventPool.push(static_cast<KeyEvent*>(event));
+            return;
+        }
+        break;
+    case AINPUT_EVENT_TYPE_MOTION:
+        if (mMotionEventPool.size() < mMaxPoolSize) {
+            mMotionEventPool.push(static_cast<MotionEvent*>(event));
+            return;
+        }
+        break;
+    }
+    delete event;
+}
+
+} // namespace android
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
new file mode 100644
index 0000000..77fa49d
--- /dev/null
+++ b/libs/input/InputDevice.cpp
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputDevice"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include <input/InputDevice.h>
+
+namespace android {
+
+static const char* CONFIGURATION_FILE_DIR[] = {
+        "idc/",
+        "keylayout/",
+        "keychars/",
+};
+
+static const char* CONFIGURATION_FILE_EXTENSION[] = {
+        ".idc",
+        ".kl",
+        ".kcm",
+};
+
+static bool isValidNameChar(char ch) {
+    return isascii(ch) && (isdigit(ch) || isalpha(ch) || ch == '-' || ch == '_');
+}
+
+static void appendInputDeviceConfigurationFileRelativePath(String8& path,
+        const String8& name, InputDeviceConfigurationFileType type) {
+    path.append(CONFIGURATION_FILE_DIR[type]);
+    for (size_t i = 0; i < name.length(); i++) {
+        char ch = name[i];
+        if (!isValidNameChar(ch)) {
+            ch = '_';
+        }
+        path.append(&ch, 1);
+    }
+    path.append(CONFIGURATION_FILE_EXTENSION[type]);
+}
+
+String8 getInputDeviceConfigurationFilePathByDeviceIdentifier(
+        const InputDeviceIdentifier& deviceIdentifier,
+        InputDeviceConfigurationFileType type) {
+    if (deviceIdentifier.vendor !=0 && deviceIdentifier.product != 0) {
+        if (deviceIdentifier.version != 0) {
+            // Try vendor product version.
+            String8 versionPath(getInputDeviceConfigurationFilePathByName(
+                    String8::format("Vendor_%04x_Product_%04x_Version_%04x",
+                            deviceIdentifier.vendor, deviceIdentifier.product,
+                            deviceIdentifier.version),
+                    type));
+            if (!versionPath.isEmpty()) {
+                return versionPath;
+            }
+        }
+
+        // Try vendor product.
+        String8 productPath(getInputDeviceConfigurationFilePathByName(
+                String8::format("Vendor_%04x_Product_%04x",
+                        deviceIdentifier.vendor, deviceIdentifier.product),
+                type));
+        if (!productPath.isEmpty()) {
+            return productPath;
+        }
+    }
+
+    // Try device name.
+    return getInputDeviceConfigurationFilePathByName(deviceIdentifier.name, type);
+}
+
+String8 getInputDeviceConfigurationFilePathByName(
+        const String8& name, InputDeviceConfigurationFileType type) {
+    // Search system repository.
+    String8 path;
+    path.setTo(getenv("ANDROID_ROOT"));
+    path.append("/usr/");
+    appendInputDeviceConfigurationFileRelativePath(path, name, type);
+#if DEBUG_PROBE
+    ALOGD("Probing for system provided input device configuration file: path='%s'", path.string());
+#endif
+    if (!access(path.string(), R_OK)) {
+#if DEBUG_PROBE
+        ALOGD("Found");
+#endif
+        return path;
+    }
+
+    // Search user repository.
+    // TODO Should only look here if not in safe mode.
+    path.setTo(getenv("ANDROID_DATA"));
+    path.append("/system/devices/");
+    appendInputDeviceConfigurationFileRelativePath(path, name, type);
+#if DEBUG_PROBE
+    ALOGD("Probing for system user input device configuration file: path='%s'", path.string());
+#endif
+    if (!access(path.string(), R_OK)) {
+#if DEBUG_PROBE
+        ALOGD("Found");
+#endif
+        return path;
+    }
+
+    // Not found.
+#if DEBUG_PROBE
+    ALOGD("Probe failed to find input device configuration file: name='%s', type=%d",
+            name.string(), type);
+#endif
+    return String8();
+}
+
+
+// --- InputDeviceInfo ---
+
+InputDeviceInfo::InputDeviceInfo() {
+    initialize(-1, -1, InputDeviceIdentifier(), String8(), false);
+}
+
+InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
+        mId(other.mId), mGeneration(other.mGeneration), mIdentifier(other.mIdentifier),
+        mAlias(other.mAlias), mIsExternal(other.mIsExternal), mSources(other.mSources),
+        mKeyboardType(other.mKeyboardType),
+        mKeyCharacterMap(other.mKeyCharacterMap),
+        mHasVibrator(other.mHasVibrator),
+        mMotionRanges(other.mMotionRanges) {
+}
+
+InputDeviceInfo::~InputDeviceInfo() {
+}
+
+void InputDeviceInfo::initialize(int32_t id, int32_t generation,
+        const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal) {
+    mId = id;
+    mGeneration = generation;
+    mIdentifier = identifier;
+    mAlias = alias;
+    mIsExternal = isExternal;
+    mSources = 0;
+    mKeyboardType = AINPUT_KEYBOARD_TYPE_NONE;
+    mHasVibrator = false;
+    mMotionRanges.clear();
+}
+
+const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(
+        int32_t axis, uint32_t source) const {
+    size_t numRanges = mMotionRanges.size();
+    for (size_t i = 0; i < numRanges; i++) {
+        const MotionRange& range = mMotionRanges.itemAt(i);
+        if (range.axis == axis && range.source == source) {
+            return &range;
+        }
+    }
+    return NULL;
+}
+
+void InputDeviceInfo::addSource(uint32_t source) {
+    mSources |= source;
+}
+
+void InputDeviceInfo::addMotionRange(int32_t axis, uint32_t source, float min, float max,
+        float flat, float fuzz, float resolution) {
+    MotionRange range = { axis, source, min, max, flat, fuzz, resolution };
+    mMotionRanges.add(range);
+}
+
+void InputDeviceInfo::addMotionRange(const MotionRange& range) {
+    mMotionRanges.add(range);
+}
+
+} // namespace android
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
new file mode 100644
index 0000000..d6507f4
--- /dev/null
+++ b/libs/input/InputTransport.cpp
@@ -0,0 +1,958 @@
+//
+// Copyright 2010 The Android Open Source Project
+//
+// Provides a shared memory transport for input events.
+//
+#define LOG_TAG "InputTransport"
+
+//#define LOG_NDEBUG 0
+
+// Log debug messages about channel messages (send message, receive message)
+#define DEBUG_CHANNEL_MESSAGES 0
+
+// Log debug messages whenever InputChannel objects are created/destroyed
+#define DEBUG_CHANNEL_LIFECYCLE 0
+
+// Log debug messages about transport actions
+#define DEBUG_TRANSPORT_ACTIONS 0
+
+// Log debug messages about touch event resampling
+#define DEBUG_RESAMPLING 0
+
+
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <input/InputTransport.h>
+
+
+namespace android {
+
+// Socket buffer size.  The default is typically about 128KB, which is much larger than
+// we really need.  So we make it smaller.  It just needs to be big enough to hold
+// a few dozen large multi-finger motion events in the case where an application gets
+// behind processing touches.
+static const size_t SOCKET_BUFFER_SIZE = 32 * 1024;
+
+// Nanoseconds per milliseconds.
+static const nsecs_t NANOS_PER_MS = 1000000;
+
+// Latency added during resampling.  A few milliseconds doesn't hurt much but
+// reduces the impact of mispredicted touch positions.
+static const nsecs_t RESAMPLE_LATENCY = 5 * NANOS_PER_MS;
+
+// Minimum time difference between consecutive samples before attempting to resample.
+static const nsecs_t RESAMPLE_MIN_DELTA = 2 * NANOS_PER_MS;
+
+// Maximum time to predict forward from the last known state, to avoid predicting too
+// far into the future.  This time is further bounded by 50% of the last time delta.
+static const nsecs_t RESAMPLE_MAX_PREDICTION = 8 * NANOS_PER_MS;
+
+template<typename T>
+inline static T min(const T& a, const T& b) {
+    return a < b ? a : b;
+}
+
+inline static float lerp(float a, float b, float alpha) {
+    return a + alpha * (b - a);
+}
+
+// --- InputMessage ---
+
+bool InputMessage::isValid(size_t actualSize) const {
+    if (size() == actualSize) {
+        switch (header.type) {
+        case TYPE_KEY:
+            return true;
+        case TYPE_MOTION:
+            return body.motion.pointerCount > 0
+                    && body.motion.pointerCount <= MAX_POINTERS;
+        case TYPE_FINISHED:
+            return true;
+        }
+    }
+    return false;
+}
+
+size_t InputMessage::size() const {
+    switch (header.type) {
+    case TYPE_KEY:
+        return sizeof(Header) + body.key.size();
+    case TYPE_MOTION:
+        return sizeof(Header) + body.motion.size();
+    case TYPE_FINISHED:
+        return sizeof(Header) + body.finished.size();
+    }
+    return sizeof(Header);
+}
+
+
+// --- InputChannel ---
+
+InputChannel::InputChannel(const String8& name, int fd) :
+        mName(name), mFd(fd) {
+#if DEBUG_CHANNEL_LIFECYCLE
+    ALOGD("Input channel constructed: name='%s', fd=%d",
+            mName.string(), fd);
+#endif
+
+    int result = fcntl(mFd, F_SETFL, O_NONBLOCK);
+    LOG_ALWAYS_FATAL_IF(result != 0, "channel '%s' ~ Could not make socket "
+            "non-blocking.  errno=%d", mName.string(), errno);
+}
+
+InputChannel::~InputChannel() {
+#if DEBUG_CHANNEL_LIFECYCLE
+    ALOGD("Input channel destroyed: name='%s', fd=%d",
+            mName.string(), mFd);
+#endif
+
+    ::close(mFd);
+}
+
+status_t InputChannel::openInputChannelPair(const String8& name,
+        sp<InputChannel>& outServerChannel, sp<InputChannel>& outClientChannel) {
+    int sockets[2];
+    if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, sockets)) {
+        status_t result = -errno;
+        ALOGE("channel '%s' ~ Could not create socket pair.  errno=%d",
+                name.string(), errno);
+        outServerChannel.clear();
+        outClientChannel.clear();
+        return result;
+    }
+
+    int bufferSize = SOCKET_BUFFER_SIZE;
+    setsockopt(sockets[0], SOL_SOCKET, SO_SNDBUF, &bufferSize, sizeof(bufferSize));
+    setsockopt(sockets[0], SOL_SOCKET, SO_RCVBUF, &bufferSize, sizeof(bufferSize));
+    setsockopt(sockets[1], SOL_SOCKET, SO_SNDBUF, &bufferSize, sizeof(bufferSize));
+    setsockopt(sockets[1], SOL_SOCKET, SO_RCVBUF, &bufferSize, sizeof(bufferSize));
+
+    String8 serverChannelName = name;
+    serverChannelName.append(" (server)");
+    outServerChannel = new InputChannel(serverChannelName, sockets[0]);
+
+    String8 clientChannelName = name;
+    clientChannelName.append(" (client)");
+    outClientChannel = new InputChannel(clientChannelName, sockets[1]);
+    return OK;
+}
+
+status_t InputChannel::sendMessage(const InputMessage* msg) {
+    size_t msgLength = msg->size();
+    ssize_t nWrite;
+    do {
+        nWrite = ::send(mFd, msg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
+    } while (nWrite == -1 && errno == EINTR);
+
+    if (nWrite < 0) {
+        int error = errno;
+#if DEBUG_CHANNEL_MESSAGES
+        ALOGD("channel '%s' ~ error sending message of type %d, errno=%d", mName.string(),
+                msg->header.type, error);
+#endif
+        if (error == EAGAIN || error == EWOULDBLOCK) {
+            return WOULD_BLOCK;
+        }
+        if (error == EPIPE || error == ENOTCONN || error == ECONNREFUSED || error == ECONNRESET) {
+            return DEAD_OBJECT;
+        }
+        return -error;
+    }
+
+    if (size_t(nWrite) != msgLength) {
+#if DEBUG_CHANNEL_MESSAGES
+        ALOGD("channel '%s' ~ error sending message type %d, send was incomplete",
+                mName.string(), msg->header.type);
+#endif
+        return DEAD_OBJECT;
+    }
+
+#if DEBUG_CHANNEL_MESSAGES
+    ALOGD("channel '%s' ~ sent message of type %d", mName.string(), msg->header.type);
+#endif
+    return OK;
+}
+
+status_t InputChannel::receiveMessage(InputMessage* msg) {
+    ssize_t nRead;
+    do {
+        nRead = ::recv(mFd, msg, sizeof(InputMessage), MSG_DONTWAIT);
+    } while (nRead == -1 && errno == EINTR);
+
+    if (nRead < 0) {
+        int error = errno;
+#if DEBUG_CHANNEL_MESSAGES
+        ALOGD("channel '%s' ~ receive message failed, errno=%d", mName.string(), errno);
+#endif
+        if (error == EAGAIN || error == EWOULDBLOCK) {
+            return WOULD_BLOCK;
+        }
+        if (error == EPIPE || error == ENOTCONN || error == ECONNREFUSED) {
+            return DEAD_OBJECT;
+        }
+        return -error;
+    }
+
+    if (nRead == 0) { // check for EOF
+#if DEBUG_CHANNEL_MESSAGES
+        ALOGD("channel '%s' ~ receive message failed because peer was closed", mName.string());
+#endif
+        return DEAD_OBJECT;
+    }
+
+    if (!msg->isValid(nRead)) {
+#if DEBUG_CHANNEL_MESSAGES
+        ALOGD("channel '%s' ~ received invalid message", mName.string());
+#endif
+        return BAD_VALUE;
+    }
+
+#if DEBUG_CHANNEL_MESSAGES
+    ALOGD("channel '%s' ~ received message of type %d", mName.string(), msg->header.type);
+#endif
+    return OK;
+}
+
+sp<InputChannel> InputChannel::dup() const {
+    int fd = ::dup(getFd());
+    return fd >= 0 ? new InputChannel(getName(), fd) : NULL;
+}
+
+
+// --- InputPublisher ---
+
+InputPublisher::InputPublisher(const sp<InputChannel>& channel) :
+        mChannel(channel) {
+}
+
+InputPublisher::~InputPublisher() {
+}
+
+status_t InputPublisher::publishKeyEvent(
+        uint32_t seq,
+        int32_t deviceId,
+        int32_t source,
+        int32_t action,
+        int32_t flags,
+        int32_t keyCode,
+        int32_t scanCode,
+        int32_t metaState,
+        int32_t repeatCount,
+        nsecs_t downTime,
+        nsecs_t eventTime) {
+#if DEBUG_TRANSPORT_ACTIONS
+    ALOGD("channel '%s' publisher ~ publishKeyEvent: seq=%u, deviceId=%d, source=0x%x, "
+            "action=0x%x, flags=0x%x, keyCode=%d, scanCode=%d, metaState=0x%x, repeatCount=%d,"
+            "downTime=%lld, eventTime=%lld",
+            mChannel->getName().string(), seq,
+            deviceId, source, action, flags, keyCode, scanCode, metaState, repeatCount,
+            downTime, eventTime);
+#endif
+
+    if (!seq) {
+        ALOGE("Attempted to publish a key event with sequence number 0.");
+        return BAD_VALUE;
+    }
+
+    InputMessage msg;
+    msg.header.type = InputMessage::TYPE_KEY;
+    msg.body.key.seq = seq;
+    msg.body.key.deviceId = deviceId;
+    msg.body.key.source = source;
+    msg.body.key.action = action;
+    msg.body.key.flags = flags;
+    msg.body.key.keyCode = keyCode;
+    msg.body.key.scanCode = scanCode;
+    msg.body.key.metaState = metaState;
+    msg.body.key.repeatCount = repeatCount;
+    msg.body.key.downTime = downTime;
+    msg.body.key.eventTime = eventTime;
+    return mChannel->sendMessage(&msg);
+}
+
+status_t InputPublisher::publishMotionEvent(
+        uint32_t seq,
+        int32_t deviceId,
+        int32_t source,
+        int32_t action,
+        int32_t flags,
+        int32_t edgeFlags,
+        int32_t metaState,
+        int32_t buttonState,
+        float xOffset,
+        float yOffset,
+        float xPrecision,
+        float yPrecision,
+        nsecs_t downTime,
+        nsecs_t eventTime,
+        size_t pointerCount,
+        const PointerProperties* pointerProperties,
+        const PointerCoords* pointerCoords) {
+#if DEBUG_TRANSPORT_ACTIONS
+    ALOGD("channel '%s' publisher ~ publishMotionEvent: seq=%u, deviceId=%d, source=0x%x, "
+            "action=0x%x, flags=0x%x, edgeFlags=0x%x, metaState=0x%x, buttonState=0x%x, "
+            "xOffset=%f, yOffset=%f, "
+            "xPrecision=%f, yPrecision=%f, downTime=%lld, eventTime=%lld, "
+            "pointerCount=%d",
+            mChannel->getName().string(), seq,
+            deviceId, source, action, flags, edgeFlags, metaState, buttonState,
+            xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime, pointerCount);
+#endif
+
+    if (!seq) {
+        ALOGE("Attempted to publish a motion event with sequence number 0.");
+        return BAD_VALUE;
+    }
+
+    if (pointerCount > MAX_POINTERS || pointerCount < 1) {
+        ALOGE("channel '%s' publisher ~ Invalid number of pointers provided: %d.",
+                mChannel->getName().string(), pointerCount);
+        return BAD_VALUE;
+    }
+
+    InputMessage msg;
+    msg.header.type = InputMessage::TYPE_MOTION;
+    msg.body.motion.seq = seq;
+    msg.body.motion.deviceId = deviceId;
+    msg.body.motion.source = source;
+    msg.body.motion.action = action;
+    msg.body.motion.flags = flags;
+    msg.body.motion.edgeFlags = edgeFlags;
+    msg.body.motion.metaState = metaState;
+    msg.body.motion.buttonState = buttonState;
+    msg.body.motion.xOffset = xOffset;
+    msg.body.motion.yOffset = yOffset;
+    msg.body.motion.xPrecision = xPrecision;
+    msg.body.motion.yPrecision = yPrecision;
+    msg.body.motion.downTime = downTime;
+    msg.body.motion.eventTime = eventTime;
+    msg.body.motion.pointerCount = pointerCount;
+    for (size_t i = 0; i < pointerCount; i++) {
+        msg.body.motion.pointers[i].properties.copyFrom(pointerProperties[i]);
+        msg.body.motion.pointers[i].coords.copyFrom(pointerCoords[i]);
+    }
+    return mChannel->sendMessage(&msg);
+}
+
+status_t InputPublisher::receiveFinishedSignal(uint32_t* outSeq, bool* outHandled) {
+#if DEBUG_TRANSPORT_ACTIONS
+    ALOGD("channel '%s' publisher ~ receiveFinishedSignal",
+            mChannel->getName().string());
+#endif
+
+    InputMessage msg;
+    status_t result = mChannel->receiveMessage(&msg);
+    if (result) {
+        *outSeq = 0;
+        *outHandled = false;
+        return result;
+    }
+    if (msg.header.type != InputMessage::TYPE_FINISHED) {
+        ALOGE("channel '%s' publisher ~ Received unexpected message of type %d from consumer",
+                mChannel->getName().string(), msg.header.type);
+        return UNKNOWN_ERROR;
+    }
+    *outSeq = msg.body.finished.seq;
+    *outHandled = msg.body.finished.handled;
+    return OK;
+}
+
+// --- InputConsumer ---
+
+InputConsumer::InputConsumer(const sp<InputChannel>& channel) :
+        mResampleTouch(isTouchResamplingEnabled()),
+        mChannel(channel), mMsgDeferred(false) {
+}
+
+InputConsumer::~InputConsumer() {
+}
+
+bool InputConsumer::isTouchResamplingEnabled() {
+    char value[PROPERTY_VALUE_MAX];
+    int length = property_get("debug.inputconsumer.resample", value, NULL);
+    if (length > 0) {
+        if (!strcmp("0", value)) {
+            return false;
+        }
+        if (strcmp("1", value)) {
+            ALOGD("Unrecognized property value for 'debug.inputconsumer.resample'.  "
+                    "Use '1' or '0'.");
+        }
+    }
+    return true;
+}
+
+status_t InputConsumer::consume(InputEventFactoryInterface* factory,
+        bool consumeBatches, nsecs_t frameTime, uint32_t* outSeq, InputEvent** outEvent) {
+#if DEBUG_TRANSPORT_ACTIONS
+    ALOGD("channel '%s' consumer ~ consume: consumeBatches=%s, frameTime=%lld",
+            mChannel->getName().string(), consumeBatches ? "true" : "false", frameTime);
+#endif
+
+    *outSeq = 0;
+    *outEvent = NULL;
+
+    // Fetch the next input message.
+    // Loop until an event can be returned or no additional events are received.
+    while (!*outEvent) {
+        if (mMsgDeferred) {
+            // mMsg contains a valid input message from the previous call to consume
+            // that has not yet been processed.
+            mMsgDeferred = false;
+        } else {
+            // Receive a fresh message.
+            status_t result = mChannel->receiveMessage(&mMsg);
+            if (result) {
+                // Consume the next batched event unless batches are being held for later.
+                if (consumeBatches || result != WOULD_BLOCK) {
+                    result = consumeBatch(factory, frameTime, outSeq, outEvent);
+                    if (*outEvent) {
+#if DEBUG_TRANSPORT_ACTIONS
+                        ALOGD("channel '%s' consumer ~ consumed batch event, seq=%u",
+                                mChannel->getName().string(), *outSeq);
+#endif
+                        break;
+                    }
+                }
+                return result;
+            }
+        }
+
+        switch (mMsg.header.type) {
+        case InputMessage::TYPE_KEY: {
+            KeyEvent* keyEvent = factory->createKeyEvent();
+            if (!keyEvent) return NO_MEMORY;
+
+            initializeKeyEvent(keyEvent, &mMsg);
+            *outSeq = mMsg.body.key.seq;
+            *outEvent = keyEvent;
+#if DEBUG_TRANSPORT_ACTIONS
+            ALOGD("channel '%s' consumer ~ consumed key event, seq=%u",
+                    mChannel->getName().string(), *outSeq);
+#endif
+            break;
+        }
+
+        case AINPUT_EVENT_TYPE_MOTION: {
+            ssize_t batchIndex = findBatch(mMsg.body.motion.deviceId, mMsg.body.motion.source);
+            if (batchIndex >= 0) {
+                Batch& batch = mBatches.editItemAt(batchIndex);
+                if (canAddSample(batch, &mMsg)) {
+                    batch.samples.push(mMsg);
+#if DEBUG_TRANSPORT_ACTIONS
+                    ALOGD("channel '%s' consumer ~ appended to batch event",
+                            mChannel->getName().string());
+#endif
+                    break;
+                } else {
+                    // We cannot append to the batch in progress, so we need to consume
+                    // the previous batch right now and defer the new message until later.
+                    mMsgDeferred = true;
+                    status_t result = consumeSamples(factory,
+                            batch, batch.samples.size(), outSeq, outEvent);
+                    mBatches.removeAt(batchIndex);
+                    if (result) {
+                        return result;
+                    }
+#if DEBUG_TRANSPORT_ACTIONS
+                    ALOGD("channel '%s' consumer ~ consumed batch event and "
+                            "deferred current event, seq=%u",
+                            mChannel->getName().string(), *outSeq);
+#endif
+                    break;
+                }
+            }
+
+            // Start a new batch if needed.
+            if (mMsg.body.motion.action == AMOTION_EVENT_ACTION_MOVE
+                    || mMsg.body.motion.action == AMOTION_EVENT_ACTION_HOVER_MOVE) {
+                mBatches.push();
+                Batch& batch = mBatches.editTop();
+                batch.samples.push(mMsg);
+#if DEBUG_TRANSPORT_ACTIONS
+                ALOGD("channel '%s' consumer ~ started batch event",
+                        mChannel->getName().string());
+#endif
+                break;
+            }
+
+            MotionEvent* motionEvent = factory->createMotionEvent();
+            if (! motionEvent) return NO_MEMORY;
+
+            updateTouchState(&mMsg);
+            initializeMotionEvent(motionEvent, &mMsg);
+            *outSeq = mMsg.body.motion.seq;
+            *outEvent = motionEvent;
+#if DEBUG_TRANSPORT_ACTIONS
+            ALOGD("channel '%s' consumer ~ consumed motion event, seq=%u",
+                    mChannel->getName().string(), *outSeq);
+#endif
+            break;
+        }
+
+        default:
+            ALOGE("channel '%s' consumer ~ Received unexpected message of type %d",
+                    mChannel->getName().string(), mMsg.header.type);
+            return UNKNOWN_ERROR;
+        }
+    }
+    return OK;
+}
+
+status_t InputConsumer::consumeBatch(InputEventFactoryInterface* factory,
+        nsecs_t frameTime, uint32_t* outSeq, InputEvent** outEvent) {
+    status_t result;
+    for (size_t i = mBatches.size(); i-- > 0; ) {
+        Batch& batch = mBatches.editItemAt(i);
+        if (frameTime < 0) {
+            result = consumeSamples(factory, batch, batch.samples.size(),
+                    outSeq, outEvent);
+            mBatches.removeAt(i);
+            return result;
+        }
+
+        nsecs_t sampleTime = frameTime - RESAMPLE_LATENCY;
+        ssize_t split = findSampleNoLaterThan(batch, sampleTime);
+        if (split < 0) {
+            continue;
+        }
+
+        result = consumeSamples(factory, batch, split + 1, outSeq, outEvent);
+        const InputMessage* next;
+        if (batch.samples.isEmpty()) {
+            mBatches.removeAt(i);
+            next = NULL;
+        } else {
+            next = &batch.samples.itemAt(0);
+        }
+        if (!result) {
+            resampleTouchState(sampleTime, static_cast<MotionEvent*>(*outEvent), next);
+        }
+        return result;
+    }
+
+    return WOULD_BLOCK;
+}
+
+status_t InputConsumer::consumeSamples(InputEventFactoryInterface* factory,
+        Batch& batch, size_t count, uint32_t* outSeq, InputEvent** outEvent) {
+    MotionEvent* motionEvent = factory->createMotionEvent();
+    if (! motionEvent) return NO_MEMORY;
+
+    uint32_t chain = 0;
+    for (size_t i = 0; i < count; i++) {
+        InputMessage& msg = batch.samples.editItemAt(i);
+        updateTouchState(&msg);
+        if (i) {
+            SeqChain seqChain;
+            seqChain.seq = msg.body.motion.seq;
+            seqChain.chain = chain;
+            mSeqChains.push(seqChain);
+            addSample(motionEvent, &msg);
+        } else {
+            initializeMotionEvent(motionEvent, &msg);
+        }
+        chain = msg.body.motion.seq;
+    }
+    batch.samples.removeItemsAt(0, count);
+
+    *outSeq = chain;
+    *outEvent = motionEvent;
+    return OK;
+}
+
+void InputConsumer::updateTouchState(InputMessage* msg) {
+    if (!mResampleTouch ||
+            !(msg->body.motion.source & AINPUT_SOURCE_CLASS_POINTER)) {
+        return;
+    }
+
+    int32_t deviceId = msg->body.motion.deviceId;
+    int32_t source = msg->body.motion.source;
+    nsecs_t eventTime = msg->body.motion.eventTime;
+
+    // Update the touch state history to incorporate the new input message.
+    // If the message is in the past relative to the most recently produced resampled
+    // touch, then use the resampled time and coordinates instead.
+    switch (msg->body.motion.action & AMOTION_EVENT_ACTION_MASK) {
+    case AMOTION_EVENT_ACTION_DOWN: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index < 0) {
+            mTouchStates.push();
+            index = mTouchStates.size() - 1;
+        }
+        TouchState& touchState = mTouchStates.editItemAt(index);
+        touchState.initialize(deviceId, source);
+        touchState.addHistory(msg);
+        break;
+    }
+
+    case AMOTION_EVENT_ACTION_MOVE: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index >= 0) {
+            TouchState& touchState = mTouchStates.editItemAt(index);
+            touchState.addHistory(msg);
+            if (eventTime < touchState.lastResample.eventTime) {
+                rewriteMessage(touchState, msg);
+            } else {
+                touchState.lastResample.idBits.clear();
+            }
+        }
+        break;
+    }
+
+    case AMOTION_EVENT_ACTION_POINTER_DOWN: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index >= 0) {
+            TouchState& touchState = mTouchStates.editItemAt(index);
+            touchState.lastResample.idBits.clearBit(msg->body.motion.getActionId());
+            rewriteMessage(touchState, msg);
+        }
+        break;
+    }
+
+    case AMOTION_EVENT_ACTION_POINTER_UP: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index >= 0) {
+            TouchState& touchState = mTouchStates.editItemAt(index);
+            rewriteMessage(touchState, msg);
+            touchState.lastResample.idBits.clearBit(msg->body.motion.getActionId());
+        }
+        break;
+    }
+
+    case AMOTION_EVENT_ACTION_SCROLL: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index >= 0) {
+            const TouchState& touchState = mTouchStates.itemAt(index);
+            rewriteMessage(touchState, msg);
+        }
+        break;
+    }
+
+    case AMOTION_EVENT_ACTION_UP:
+    case AMOTION_EVENT_ACTION_CANCEL: {
+        ssize_t index = findTouchState(deviceId, source);
+        if (index >= 0) {
+            const TouchState& touchState = mTouchStates.itemAt(index);
+            rewriteMessage(touchState, msg);
+            mTouchStates.removeAt(index);
+        }
+        break;
+    }
+    }
+}
+
+void InputConsumer::rewriteMessage(const TouchState& state, InputMessage* msg) {
+    for (size_t i = 0; i < msg->body.motion.pointerCount; i++) {
+        uint32_t id = msg->body.motion.pointers[i].properties.id;
+        if (state.lastResample.idBits.hasBit(id)) {
+            PointerCoords& msgCoords = msg->body.motion.pointers[i].coords;
+            const PointerCoords& resampleCoords = state.lastResample.getPointerById(id);
+#if DEBUG_RESAMPLING
+            ALOGD("[%d] - rewrite (%0.3f, %0.3f), old (%0.3f, %0.3f)", id,
+                    resampleCoords.getAxisValue(AMOTION_EVENT_AXIS_X),
+                    resampleCoords.getAxisValue(AMOTION_EVENT_AXIS_Y),
+                    msgCoords.getAxisValue(AMOTION_EVENT_AXIS_X),
+                    msgCoords.getAxisValue(AMOTION_EVENT_AXIS_Y));
+#endif
+            msgCoords.setAxisValue(AMOTION_EVENT_AXIS_X, resampleCoords.getX());
+            msgCoords.setAxisValue(AMOTION_EVENT_AXIS_Y, resampleCoords.getY());
+        }
+    }
+}
+
+void InputConsumer::resampleTouchState(nsecs_t sampleTime, MotionEvent* event,
+    const InputMessage* next) {
+    if (!mResampleTouch
+            || !(event->getSource() & AINPUT_SOURCE_CLASS_POINTER)
+            || event->getAction() != AMOTION_EVENT_ACTION_MOVE) {
+        return;
+    }
+
+    ssize_t index = findTouchState(event->getDeviceId(), event->getSource());
+    if (index < 0) {
+#if DEBUG_RESAMPLING
+        ALOGD("Not resampled, no touch state for device.");
+#endif
+        return;
+    }
+
+    TouchState& touchState = mTouchStates.editItemAt(index);
+    if (touchState.historySize < 1) {
+#if DEBUG_RESAMPLING
+        ALOGD("Not resampled, no history for device.");
+#endif
+        return;
+    }
+
+    // Ensure that the current sample has all of the pointers that need to be reported.
+    const History* current = touchState.getHistory(0);
+    size_t pointerCount = event->getPointerCount();
+    for (size_t i = 0; i < pointerCount; i++) {
+        uint32_t id = event->getPointerId(i);
+        if (!current->idBits.hasBit(id)) {
+#if DEBUG_RESAMPLING
+            ALOGD("Not resampled, missing id %d", id);
+#endif
+            return;
+        }
+    }
+
+    // Find the data to use for resampling.
+    const History* other;
+    History future;
+    float alpha;
+    if (next) {
+        // Interpolate between current sample and future sample.
+        // So current->eventTime <= sampleTime <= future.eventTime.
+        future.initializeFrom(next);
+        other = &future;
+        nsecs_t delta = future.eventTime - current->eventTime;
+        if (delta < RESAMPLE_MIN_DELTA) {
+#if DEBUG_RESAMPLING
+            ALOGD("Not resampled, delta time is %lld ns.", delta);
+#endif
+            return;
+        }
+        alpha = float(sampleTime - current->eventTime) / delta;
+    } else if (touchState.historySize >= 2) {
+        // Extrapolate future sample using current sample and past sample.
+        // So other->eventTime <= current->eventTime <= sampleTime.
+        other = touchState.getHistory(1);
+        nsecs_t delta = current->eventTime - other->eventTime;
+        if (delta < RESAMPLE_MIN_DELTA) {
+#if DEBUG_RESAMPLING
+            ALOGD("Not resampled, delta time is %lld ns.", delta);
+#endif
+            return;
+        }
+        nsecs_t maxPredict = current->eventTime + min(delta / 2, RESAMPLE_MAX_PREDICTION);
+        if (sampleTime > maxPredict) {
+#if DEBUG_RESAMPLING
+            ALOGD("Sample time is too far in the future, adjusting prediction "
+                    "from %lld to %lld ns.",
+                    sampleTime - current->eventTime, maxPredict - current->eventTime);
+#endif
+            sampleTime = maxPredict;
+        }
+        alpha = float(current->eventTime - sampleTime) / delta;
+    } else {
+#if DEBUG_RESAMPLING
+        ALOGD("Not resampled, insufficient data.");
+#endif
+        return;
+    }
+
+    // Resample touch coordinates.
+    touchState.lastResample.eventTime = sampleTime;
+    touchState.lastResample.idBits.clear();
+    for (size_t i = 0; i < pointerCount; i++) {
+        uint32_t id = event->getPointerId(i);
+        touchState.lastResample.idToIndex[id] = i;
+        touchState.lastResample.idBits.markBit(id);
+        PointerCoords& resampledCoords = touchState.lastResample.pointers[i];
+        const PointerCoords& currentCoords = current->getPointerById(id);
+        if (other->idBits.hasBit(id)
+                && shouldResampleTool(event->getToolType(i))) {
+            const PointerCoords& otherCoords = other->getPointerById(id);
+            resampledCoords.copyFrom(currentCoords);
+            resampledCoords.setAxisValue(AMOTION_EVENT_AXIS_X,
+                    lerp(currentCoords.getX(), otherCoords.getX(), alpha));
+            resampledCoords.setAxisValue(AMOTION_EVENT_AXIS_Y,
+                    lerp(currentCoords.getY(), otherCoords.getY(), alpha));
+#if DEBUG_RESAMPLING
+            ALOGD("[%d] - out (%0.3f, %0.3f), cur (%0.3f, %0.3f), "
+                    "other (%0.3f, %0.3f), alpha %0.3f",
+                    id, resampledCoords.getX(), resampledCoords.getY(),
+                    currentCoords.getX(), currentCoords.getY(),
+                    otherCoords.getX(), otherCoords.getY(),
+                    alpha);
+#endif
+        } else {
+            resampledCoords.copyFrom(currentCoords);
+#if DEBUG_RESAMPLING
+            ALOGD("[%d] - out (%0.3f, %0.3f), cur (%0.3f, %0.3f)",
+                    id, resampledCoords.getX(), resampledCoords.getY(),
+                    currentCoords.getX(), currentCoords.getY());
+#endif
+        }
+    }
+
+    event->addSample(sampleTime, touchState.lastResample.pointers);
+}
+
+bool InputConsumer::shouldResampleTool(int32_t toolType) {
+    return toolType == AMOTION_EVENT_TOOL_TYPE_FINGER
+            || toolType == AMOTION_EVENT_TOOL_TYPE_UNKNOWN;
+}
+
+status_t InputConsumer::sendFinishedSignal(uint32_t seq, bool handled) {
+#if DEBUG_TRANSPORT_ACTIONS
+    ALOGD("channel '%s' consumer ~ sendFinishedSignal: seq=%u, handled=%s",
+            mChannel->getName().string(), seq, handled ? "true" : "false");
+#endif
+
+    if (!seq) {
+        ALOGE("Attempted to send a finished signal with sequence number 0.");
+        return BAD_VALUE;
+    }
+
+    // Send finished signals for the batch sequence chain first.
+    size_t seqChainCount = mSeqChains.size();
+    if (seqChainCount) {
+        uint32_t currentSeq = seq;
+        uint32_t chainSeqs[seqChainCount];
+        size_t chainIndex = 0;
+        for (size_t i = seqChainCount; i-- > 0; ) {
+             const SeqChain& seqChain = mSeqChains.itemAt(i);
+             if (seqChain.seq == currentSeq) {
+                 currentSeq = seqChain.chain;
+                 chainSeqs[chainIndex++] = currentSeq;
+                 mSeqChains.removeAt(i);
+             }
+        }
+        status_t status = OK;
+        while (!status && chainIndex-- > 0) {
+            status = sendUnchainedFinishedSignal(chainSeqs[chainIndex], handled);
+        }
+        if (status) {
+            // An error occurred so at least one signal was not sent, reconstruct the chain.
+            do {
+                SeqChain seqChain;
+                seqChain.seq = chainIndex != 0 ? chainSeqs[chainIndex - 1] : seq;
+                seqChain.chain = chainSeqs[chainIndex];
+                mSeqChains.push(seqChain);
+            } while (chainIndex-- > 0);
+            return status;
+        }
+    }
+
+    // Send finished signal for the last message in the batch.
+    return sendUnchainedFinishedSignal(seq, handled);
+}
+
+status_t InputConsumer::sendUnchainedFinishedSignal(uint32_t seq, bool handled) {
+    InputMessage msg;
+    msg.header.type = InputMessage::TYPE_FINISHED;
+    msg.body.finished.seq = seq;
+    msg.body.finished.handled = handled;
+    return mChannel->sendMessage(&msg);
+}
+
+bool InputConsumer::hasDeferredEvent() const {
+    return mMsgDeferred;
+}
+
+bool InputConsumer::hasPendingBatch() const {
+    return !mBatches.isEmpty();
+}
+
+ssize_t InputConsumer::findBatch(int32_t deviceId, int32_t source) const {
+    for (size_t i = 0; i < mBatches.size(); i++) {
+        const Batch& batch = mBatches.itemAt(i);
+        const InputMessage& head = batch.samples.itemAt(0);
+        if (head.body.motion.deviceId == deviceId && head.body.motion.source == source) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+ssize_t InputConsumer::findTouchState(int32_t deviceId, int32_t source) const {
+    for (size_t i = 0; i < mTouchStates.size(); i++) {
+        const TouchState& touchState = mTouchStates.itemAt(i);
+        if (touchState.deviceId == deviceId && touchState.source == source) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+void InputConsumer::initializeKeyEvent(KeyEvent* event, const InputMessage* msg) {
+    event->initialize(
+            msg->body.key.deviceId,
+            msg->body.key.source,
+            msg->body.key.action,
+            msg->body.key.flags,
+            msg->body.key.keyCode,
+            msg->body.key.scanCode,
+            msg->body.key.metaState,
+            msg->body.key.repeatCount,
+            msg->body.key.downTime,
+            msg->body.key.eventTime);
+}
+
+void InputConsumer::initializeMotionEvent(MotionEvent* event, const InputMessage* msg) {
+    size_t pointerCount = msg->body.motion.pointerCount;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].copyFrom(msg->body.motion.pointers[i].properties);
+        pointerCoords[i].copyFrom(msg->body.motion.pointers[i].coords);
+    }
+
+    event->initialize(
+            msg->body.motion.deviceId,
+            msg->body.motion.source,
+            msg->body.motion.action,
+            msg->body.motion.flags,
+            msg->body.motion.edgeFlags,
+            msg->body.motion.metaState,
+            msg->body.motion.buttonState,
+            msg->body.motion.xOffset,
+            msg->body.motion.yOffset,
+            msg->body.motion.xPrecision,
+            msg->body.motion.yPrecision,
+            msg->body.motion.downTime,
+            msg->body.motion.eventTime,
+            pointerCount,
+            pointerProperties,
+            pointerCoords);
+}
+
+void InputConsumer::addSample(MotionEvent* event, const InputMessage* msg) {
+    size_t pointerCount = msg->body.motion.pointerCount;
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerCoords[i].copyFrom(msg->body.motion.pointers[i].coords);
+    }
+
+    event->setMetaState(event->getMetaState() | msg->body.motion.metaState);
+    event->addSample(msg->body.motion.eventTime, pointerCoords);
+}
+
+bool InputConsumer::canAddSample(const Batch& batch, const InputMessage *msg) {
+    const InputMessage& head = batch.samples.itemAt(0);
+    size_t pointerCount = msg->body.motion.pointerCount;
+    if (head.body.motion.pointerCount != pointerCount
+            || head.body.motion.action != msg->body.motion.action) {
+        return false;
+    }
+    for (size_t i = 0; i < pointerCount; i++) {
+        if (head.body.motion.pointers[i].properties
+                != msg->body.motion.pointers[i].properties) {
+            return false;
+        }
+    }
+    return true;
+}
+
+ssize_t InputConsumer::findSampleNoLaterThan(const Batch& batch, nsecs_t time) {
+    size_t numSamples = batch.samples.size();
+    size_t index = 0;
+    while (index < numSamples
+            && batch.samples.itemAt(index).body.motion.eventTime <= time) {
+        index += 1;
+    }
+    return ssize_t(index) - 1;
+}
+
+} // namespace android
diff --git a/libs/input/KeyCharacterMap.cpp b/libs/input/KeyCharacterMap.cpp
new file mode 100644
index 0000000..15a877447
--- /dev/null
+++ b/libs/input/KeyCharacterMap.cpp
@@ -0,0 +1,1154 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "KeyCharacterMap"
+
+#include <stdlib.h>
+#include <string.h>
+
+#if HAVE_ANDROID_OS
+#include <binder/Parcel.h>
+#endif
+
+#include <android/keycodes.h>
+#include <input/Keyboard.h>
+#include <input/KeyCharacterMap.h>
+
+#include <utils/Log.h>
+#include <utils/Errors.h>
+#include <utils/Tokenizer.h>
+#include <utils/Timers.h>
+
+// Enables debug output for the parser.
+#define DEBUG_PARSER 0
+
+// Enables debug output for parser performance.
+#define DEBUG_PARSER_PERFORMANCE 0
+
+// Enables debug output for mapping.
+#define DEBUG_MAPPING 0
+
+
+namespace android {
+
+static const char* WHITESPACE = " \t\r";
+static const char* WHITESPACE_OR_PROPERTY_DELIMITER = " \t\r,:";
+
+struct Modifier {
+    const char* label;
+    int32_t metaState;
+};
+static const Modifier modifiers[] = {
+        { "shift", AMETA_SHIFT_ON },
+        { "lshift", AMETA_SHIFT_LEFT_ON },
+        { "rshift", AMETA_SHIFT_RIGHT_ON },
+        { "alt", AMETA_ALT_ON },
+        { "lalt", AMETA_ALT_LEFT_ON },
+        { "ralt", AMETA_ALT_RIGHT_ON },
+        { "ctrl", AMETA_CTRL_ON },
+        { "lctrl", AMETA_CTRL_LEFT_ON },
+        { "rctrl", AMETA_CTRL_RIGHT_ON },
+        { "meta", AMETA_META_ON },
+        { "lmeta", AMETA_META_LEFT_ON },
+        { "rmeta", AMETA_META_RIGHT_ON },
+        { "sym", AMETA_SYM_ON },
+        { "fn", AMETA_FUNCTION_ON },
+        { "capslock", AMETA_CAPS_LOCK_ON },
+        { "numlock", AMETA_NUM_LOCK_ON },
+        { "scrolllock", AMETA_SCROLL_LOCK_ON },
+};
+
+#if DEBUG_MAPPING
+static String8 toString(const char16_t* chars, size_t numChars) {
+    String8 result;
+    for (size_t i = 0; i < numChars; i++) {
+        result.appendFormat(i == 0 ? "%d" : ", %d", chars[i]);
+    }
+    return result;
+}
+#endif
+
+
+// --- KeyCharacterMap ---
+
+sp<KeyCharacterMap> KeyCharacterMap::sEmpty = new KeyCharacterMap();
+
+KeyCharacterMap::KeyCharacterMap() :
+    mType(KEYBOARD_TYPE_UNKNOWN) {
+}
+
+KeyCharacterMap::KeyCharacterMap(const KeyCharacterMap& other) :
+    RefBase(), mType(other.mType), mKeysByScanCode(other.mKeysByScanCode),
+    mKeysByUsageCode(other.mKeysByUsageCode) {
+    for (size_t i = 0; i < other.mKeys.size(); i++) {
+        mKeys.add(other.mKeys.keyAt(i), new Key(*other.mKeys.valueAt(i)));
+    }
+}
+
+KeyCharacterMap::~KeyCharacterMap() {
+    for (size_t i = 0; i < mKeys.size(); i++) {
+        Key* key = mKeys.editValueAt(i);
+        delete key;
+    }
+}
+
+status_t KeyCharacterMap::load(const String8& filename,
+        Format format, sp<KeyCharacterMap>* outMap) {
+    outMap->clear();
+
+    Tokenizer* tokenizer;
+    status_t status = Tokenizer::open(filename, &tokenizer);
+    if (status) {
+        ALOGE("Error %d opening key character map file %s.", status, filename.string());
+    } else {
+        status = load(tokenizer, format, outMap);
+        delete tokenizer;
+    }
+    return status;
+}
+
+status_t KeyCharacterMap::loadContents(const String8& filename, const char* contents,
+        Format format, sp<KeyCharacterMap>* outMap) {
+    outMap->clear();
+
+    Tokenizer* tokenizer;
+    status_t status = Tokenizer::fromContents(filename, contents, &tokenizer);
+    if (status) {
+        ALOGE("Error %d opening key character map.", status);
+    } else {
+        status = load(tokenizer, format, outMap);
+        delete tokenizer;
+    }
+    return status;
+}
+
+status_t KeyCharacterMap::load(Tokenizer* tokenizer,
+        Format format, sp<KeyCharacterMap>* outMap) {
+    status_t status = OK;
+    sp<KeyCharacterMap> map = new KeyCharacterMap();
+    if (!map.get()) {
+        ALOGE("Error allocating key character map.");
+        status = NO_MEMORY;
+    } else {
+#if DEBUG_PARSER_PERFORMANCE
+        nsecs_t startTime = systemTime(SYSTEM_TIME_MONOTONIC);
+#endif
+        Parser parser(map.get(), tokenizer, format);
+        status = parser.parse();
+#if DEBUG_PARSER_PERFORMANCE
+        nsecs_t elapsedTime = systemTime(SYSTEM_TIME_MONOTONIC) - startTime;
+        ALOGD("Parsed key character map file '%s' %d lines in %0.3fms.",
+                tokenizer->getFilename().string(), tokenizer->getLineNumber(),
+                elapsedTime / 1000000.0);
+#endif
+        if (!status) {
+            *outMap = map;
+        }
+    }
+    return status;
+}
+
+sp<KeyCharacterMap> KeyCharacterMap::combine(const sp<KeyCharacterMap>& base,
+        const sp<KeyCharacterMap>& overlay) {
+    if (overlay == NULL) {
+        return base;
+    }
+    if (base == NULL) {
+        return overlay;
+    }
+
+    sp<KeyCharacterMap> map = new KeyCharacterMap(*base.get());
+    for (size_t i = 0; i < overlay->mKeys.size(); i++) {
+        int32_t keyCode = overlay->mKeys.keyAt(i);
+        Key* key = overlay->mKeys.valueAt(i);
+        ssize_t oldIndex = map->mKeys.indexOfKey(keyCode);
+        if (oldIndex >= 0) {
+            delete map->mKeys.valueAt(oldIndex);
+            map->mKeys.editValueAt(oldIndex) = new Key(*key);
+        } else {
+            map->mKeys.add(keyCode, new Key(*key));
+        }
+    }
+
+    for (size_t i = 0; i < overlay->mKeysByScanCode.size(); i++) {
+        map->mKeysByScanCode.replaceValueFor(overlay->mKeysByScanCode.keyAt(i),
+                overlay->mKeysByScanCode.valueAt(i));
+    }
+
+    for (size_t i = 0; i < overlay->mKeysByUsageCode.size(); i++) {
+        map->mKeysByUsageCode.replaceValueFor(overlay->mKeysByUsageCode.keyAt(i),
+                overlay->mKeysByUsageCode.valueAt(i));
+    }
+    return map;
+}
+
+sp<KeyCharacterMap> KeyCharacterMap::empty() {
+    return sEmpty;
+}
+
+int32_t KeyCharacterMap::getKeyboardType() const {
+    return mType;
+}
+
+char16_t KeyCharacterMap::getDisplayLabel(int32_t keyCode) const {
+    char16_t result = 0;
+    const Key* key;
+    if (getKey(keyCode, &key)) {
+        result = key->label;
+    }
+#if DEBUG_MAPPING
+    ALOGD("getDisplayLabel: keyCode=%d ~ Result %d.", keyCode, result);
+#endif
+    return result;
+}
+
+char16_t KeyCharacterMap::getNumber(int32_t keyCode) const {
+    char16_t result = 0;
+    const Key* key;
+    if (getKey(keyCode, &key)) {
+        result = key->number;
+    }
+#if DEBUG_MAPPING
+    ALOGD("getNumber: keyCode=%d ~ Result %d.", keyCode, result);
+#endif
+    return result;
+}
+
+char16_t KeyCharacterMap::getCharacter(int32_t keyCode, int32_t metaState) const {
+    char16_t result = 0;
+    const Key* key;
+    const Behavior* behavior;
+    if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
+        result = behavior->character;
+    }
+#if DEBUG_MAPPING
+    ALOGD("getCharacter: keyCode=%d, metaState=0x%08x ~ Result %d.", keyCode, metaState, result);
+#endif
+    return result;
+}
+
+bool KeyCharacterMap::getFallbackAction(int32_t keyCode, int32_t metaState,
+        FallbackAction* outFallbackAction) const {
+    outFallbackAction->keyCode = 0;
+    outFallbackAction->metaState = 0;
+
+    bool result = false;
+    const Key* key;
+    const Behavior* behavior;
+    if (getKeyBehavior(keyCode, metaState, &key, &behavior)) {
+        if (behavior->fallbackKeyCode) {
+            outFallbackAction->keyCode = behavior->fallbackKeyCode;
+            outFallbackAction->metaState = metaState & ~behavior->metaState;
+            result = true;
+        }
+    }
+#if DEBUG_MAPPING
+    ALOGD("getFallbackKeyCode: keyCode=%d, metaState=0x%08x ~ Result %s, "
+            "fallback keyCode=%d, fallback metaState=0x%08x.",
+            keyCode, metaState, result ? "true" : "false",
+            outFallbackAction->keyCode, outFallbackAction->metaState);
+#endif
+    return result;
+}
+
+char16_t KeyCharacterMap::getMatch(int32_t keyCode, const char16_t* chars, size_t numChars,
+        int32_t metaState) const {
+    char16_t result = 0;
+    const Key* key;
+    if (getKey(keyCode, &key)) {
+        // Try to find the most general behavior that maps to this character.
+        // For example, the base key behavior will usually be last in the list.
+        // However, if we find a perfect meta state match for one behavior then use that one.
+        for (const Behavior* behavior = key->firstBehavior; behavior; behavior = behavior->next) {
+            if (behavior->character) {
+                for (size_t i = 0; i < numChars; i++) {
+                    if (behavior->character == chars[i]) {
+                        result = behavior->character;
+                        if ((behavior->metaState & metaState) == behavior->metaState) {
+                            goto ExactMatch;
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+    ExactMatch: ;
+    }
+#if DEBUG_MAPPING
+    ALOGD("getMatch: keyCode=%d, chars=[%s], metaState=0x%08x ~ Result %d.",
+            keyCode, toString(chars, numChars).string(), metaState, result);
+#endif
+    return result;
+}
+
+bool KeyCharacterMap::getEvents(int32_t deviceId, const char16_t* chars, size_t numChars,
+        Vector<KeyEvent>& outEvents) const {
+    nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
+
+    for (size_t i = 0; i < numChars; i++) {
+        int32_t keyCode, metaState;
+        char16_t ch = chars[i];
+        if (!findKey(ch, &keyCode, &metaState)) {
+#if DEBUG_MAPPING
+            ALOGD("getEvents: deviceId=%d, chars=[%s] ~ Failed to find mapping for character %d.",
+                    deviceId, toString(chars, numChars).string(), ch);
+#endif
+            return false;
+        }
+
+        int32_t currentMetaState = 0;
+        addMetaKeys(outEvents, deviceId, metaState, true, now, &currentMetaState);
+        addKey(outEvents, deviceId, keyCode, currentMetaState, true, now);
+        addKey(outEvents, deviceId, keyCode, currentMetaState, false, now);
+        addMetaKeys(outEvents, deviceId, metaState, false, now, &currentMetaState);
+    }
+#if DEBUG_MAPPING
+    ALOGD("getEvents: deviceId=%d, chars=[%s] ~ Generated %d events.",
+            deviceId, toString(chars, numChars).string(), int32_t(outEvents.size()));
+    for (size_t i = 0; i < outEvents.size(); i++) {
+        ALOGD("  Key: keyCode=%d, metaState=0x%08x, %s.",
+                outEvents[i].getKeyCode(), outEvents[i].getMetaState(),
+                outEvents[i].getAction() == AKEY_EVENT_ACTION_DOWN ? "down" : "up");
+    }
+#endif
+    return true;
+}
+
+status_t KeyCharacterMap::mapKey(int32_t scanCode, int32_t usageCode, int32_t* outKeyCode) const {
+    if (usageCode) {
+        ssize_t index = mKeysByUsageCode.indexOfKey(usageCode);
+        if (index >= 0) {
+#if DEBUG_MAPPING
+    ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d.",
+            scanCode, usageCode, *outKeyCode);
+#endif
+            *outKeyCode = mKeysByUsageCode.valueAt(index);
+            return OK;
+        }
+    }
+    if (scanCode) {
+        ssize_t index = mKeysByScanCode.indexOfKey(scanCode);
+        if (index >= 0) {
+#if DEBUG_MAPPING
+    ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d.",
+            scanCode, usageCode, *outKeyCode);
+#endif
+            *outKeyCode = mKeysByScanCode.valueAt(index);
+            return OK;
+        }
+    }
+
+#if DEBUG_MAPPING
+        ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode, usageCode);
+#endif
+    *outKeyCode = AKEYCODE_UNKNOWN;
+    return NAME_NOT_FOUND;
+}
+
+bool KeyCharacterMap::getKey(int32_t keyCode, const Key** outKey) const {
+    ssize_t index = mKeys.indexOfKey(keyCode);
+    if (index >= 0) {
+        *outKey = mKeys.valueAt(index);
+        return true;
+    }
+    return false;
+}
+
+bool KeyCharacterMap::getKeyBehavior(int32_t keyCode, int32_t metaState,
+        const Key** outKey, const Behavior** outBehavior) const {
+    const Key* key;
+    if (getKey(keyCode, &key)) {
+        const Behavior* behavior = key->firstBehavior;
+        while (behavior) {
+            if (matchesMetaState(metaState, behavior->metaState)) {
+                *outKey = key;
+                *outBehavior = behavior;
+                return true;
+            }
+            behavior = behavior->next;
+        }
+    }
+    return false;
+}
+
+bool KeyCharacterMap::matchesMetaState(int32_t eventMetaState, int32_t behaviorMetaState) {
+    // Behavior must have at least the set of meta states specified.
+    // And if the key event has CTRL, ALT or META then the behavior must exactly
+    // match those, taking into account that a behavior can specify that it handles
+    // one, both or either of a left/right modifier pair.
+    if ((eventMetaState & behaviorMetaState) == behaviorMetaState) {
+        const int32_t EXACT_META_STATES =
+                AMETA_CTRL_ON | AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON
+                | AMETA_ALT_ON | AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON
+                | AMETA_META_ON | AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON;
+        int32_t unmatchedMetaState = eventMetaState & ~behaviorMetaState & EXACT_META_STATES;
+        if (behaviorMetaState & AMETA_CTRL_ON) {
+            unmatchedMetaState &= ~(AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON);
+        } else if (behaviorMetaState & (AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON)) {
+            unmatchedMetaState &= ~AMETA_CTRL_ON;
+        }
+        if (behaviorMetaState & AMETA_ALT_ON) {
+            unmatchedMetaState &= ~(AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON);
+        } else if (behaviorMetaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
+            unmatchedMetaState &= ~AMETA_ALT_ON;
+        }
+        if (behaviorMetaState & AMETA_META_ON) {
+            unmatchedMetaState &= ~(AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON);
+        } else if (behaviorMetaState & (AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON)) {
+            unmatchedMetaState &= ~AMETA_META_ON;
+        }
+        return !unmatchedMetaState;
+    }
+    return false;
+}
+
+bool KeyCharacterMap::findKey(char16_t ch, int32_t* outKeyCode, int32_t* outMetaState) const {
+    if (!ch) {
+        return false;
+    }
+
+    for (size_t i = 0; i < mKeys.size(); i++) {
+        const Key* key = mKeys.valueAt(i);
+
+        // Try to find the most general behavior that maps to this character.
+        // For example, the base key behavior will usually be last in the list.
+        const Behavior* found = NULL;
+        for (const Behavior* behavior = key->firstBehavior; behavior; behavior = behavior->next) {
+            if (behavior->character == ch) {
+                found = behavior;
+            }
+        }
+        if (found) {
+            *outKeyCode = mKeys.keyAt(i);
+            *outMetaState = found->metaState;
+            return true;
+        }
+    }
+    return false;
+}
+
+void KeyCharacterMap::addKey(Vector<KeyEvent>& outEvents,
+        int32_t deviceId, int32_t keyCode, int32_t metaState, bool down, nsecs_t time) {
+    outEvents.push();
+    KeyEvent& event = outEvents.editTop();
+    event.initialize(deviceId, AINPUT_SOURCE_KEYBOARD,
+            down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP,
+            0, keyCode, 0, metaState, 0, time, time);
+}
+
+void KeyCharacterMap::addMetaKeys(Vector<KeyEvent>& outEvents,
+        int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+        int32_t* currentMetaState) {
+    // Add and remove meta keys symmetrically.
+    if (down) {
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_CAPS_LOCK, AMETA_CAPS_LOCK_ON, currentMetaState);
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_NUM_LOCK, AMETA_NUM_LOCK_ON, currentMetaState);
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_SCROLL_LOCK, AMETA_SCROLL_LOCK_ON, currentMetaState);
+
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_SHIFT_LEFT, AMETA_SHIFT_LEFT_ON,
+                AKEYCODE_SHIFT_RIGHT, AMETA_SHIFT_RIGHT_ON,
+                AMETA_SHIFT_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_ALT_LEFT, AMETA_ALT_LEFT_ON,
+                AKEYCODE_ALT_RIGHT, AMETA_ALT_RIGHT_ON,
+                AMETA_ALT_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_CTRL_LEFT, AMETA_CTRL_LEFT_ON,
+                AKEYCODE_CTRL_RIGHT, AMETA_CTRL_RIGHT_ON,
+                AMETA_CTRL_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_META_LEFT, AMETA_META_LEFT_ON,
+                AKEYCODE_META_RIGHT, AMETA_META_RIGHT_ON,
+                AMETA_META_ON, currentMetaState);
+
+        addSingleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_SYM, AMETA_SYM_ON, currentMetaState);
+        addSingleEphemeralMetaKey(outEvents, deviceId, metaState, true, time,
+                AKEYCODE_FUNCTION, AMETA_FUNCTION_ON, currentMetaState);
+    } else {
+        addSingleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_FUNCTION, AMETA_FUNCTION_ON, currentMetaState);
+        addSingleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_SYM, AMETA_SYM_ON, currentMetaState);
+
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_META_LEFT, AMETA_META_LEFT_ON,
+                AKEYCODE_META_RIGHT, AMETA_META_RIGHT_ON,
+                AMETA_META_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_CTRL_LEFT, AMETA_CTRL_LEFT_ON,
+                AKEYCODE_CTRL_RIGHT, AMETA_CTRL_RIGHT_ON,
+                AMETA_CTRL_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_ALT_LEFT, AMETA_ALT_LEFT_ON,
+                AKEYCODE_ALT_RIGHT, AMETA_ALT_RIGHT_ON,
+                AMETA_ALT_ON, currentMetaState);
+        addDoubleEphemeralMetaKey(outEvents, deviceId, metaState, false, time,
+                AKEYCODE_SHIFT_LEFT, AMETA_SHIFT_LEFT_ON,
+                AKEYCODE_SHIFT_RIGHT, AMETA_SHIFT_RIGHT_ON,
+                AMETA_SHIFT_ON, currentMetaState);
+
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_SCROLL_LOCK, AMETA_SCROLL_LOCK_ON, currentMetaState);
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_NUM_LOCK, AMETA_NUM_LOCK_ON, currentMetaState);
+        addLockedMetaKey(outEvents, deviceId, metaState, time,
+                AKEYCODE_CAPS_LOCK, AMETA_CAPS_LOCK_ON, currentMetaState);
+    }
+}
+
+bool KeyCharacterMap::addSingleEphemeralMetaKey(Vector<KeyEvent>& outEvents,
+        int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+        int32_t keyCode, int32_t keyMetaState,
+        int32_t* currentMetaState) {
+    if ((metaState & keyMetaState) == keyMetaState) {
+        *currentMetaState = updateMetaState(keyCode, down, *currentMetaState);
+        addKey(outEvents, deviceId, keyCode, *currentMetaState, down, time);
+        return true;
+    }
+    return false;
+}
+
+void KeyCharacterMap::addDoubleEphemeralMetaKey(Vector<KeyEvent>& outEvents,
+        int32_t deviceId, int32_t metaState, bool down, nsecs_t time,
+        int32_t leftKeyCode, int32_t leftKeyMetaState,
+        int32_t rightKeyCode, int32_t rightKeyMetaState,
+        int32_t eitherKeyMetaState,
+        int32_t* currentMetaState) {
+    bool specific = false;
+    specific |= addSingleEphemeralMetaKey(outEvents, deviceId, metaState, down, time,
+            leftKeyCode, leftKeyMetaState, currentMetaState);
+    specific |= addSingleEphemeralMetaKey(outEvents, deviceId, metaState, down, time,
+            rightKeyCode, rightKeyMetaState, currentMetaState);
+
+    if (!specific) {
+        addSingleEphemeralMetaKey(outEvents, deviceId, metaState, down, time,
+                leftKeyCode, eitherKeyMetaState, currentMetaState);
+    }
+}
+
+void KeyCharacterMap::addLockedMetaKey(Vector<KeyEvent>& outEvents,
+        int32_t deviceId, int32_t metaState, nsecs_t time,
+        int32_t keyCode, int32_t keyMetaState,
+        int32_t* currentMetaState) {
+    if ((metaState & keyMetaState) == keyMetaState) {
+        *currentMetaState = updateMetaState(keyCode, true, *currentMetaState);
+        addKey(outEvents, deviceId, keyCode, *currentMetaState, true, time);
+        *currentMetaState = updateMetaState(keyCode, false, *currentMetaState);
+        addKey(outEvents, deviceId, keyCode, *currentMetaState, false, time);
+    }
+}
+
+#if HAVE_ANDROID_OS
+sp<KeyCharacterMap> KeyCharacterMap::readFromParcel(Parcel* parcel) {
+    sp<KeyCharacterMap> map = new KeyCharacterMap();
+    map->mType = parcel->readInt32();
+    size_t numKeys = parcel->readInt32();
+    if (parcel->errorCheck()) {
+        return NULL;
+    }
+
+    for (size_t i = 0; i < numKeys; i++) {
+        int32_t keyCode = parcel->readInt32();
+        char16_t label = parcel->readInt32();
+        char16_t number = parcel->readInt32();
+        if (parcel->errorCheck()) {
+            return NULL;
+        }
+
+        Key* key = new Key();
+        key->label = label;
+        key->number = number;
+        map->mKeys.add(keyCode, key);
+
+        Behavior* lastBehavior = NULL;
+        while (parcel->readInt32()) {
+            int32_t metaState = parcel->readInt32();
+            char16_t character = parcel->readInt32();
+            int32_t fallbackKeyCode = parcel->readInt32();
+            if (parcel->errorCheck()) {
+                return NULL;
+            }
+
+            Behavior* behavior = new Behavior();
+            behavior->metaState = metaState;
+            behavior->character = character;
+            behavior->fallbackKeyCode = fallbackKeyCode;
+            if (lastBehavior) {
+                lastBehavior->next = behavior;
+            } else {
+                key->firstBehavior = behavior;
+            }
+            lastBehavior = behavior;
+        }
+
+        if (parcel->errorCheck()) {
+            return NULL;
+        }
+    }
+    return map;
+}
+
+void KeyCharacterMap::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mType);
+
+    size_t numKeys = mKeys.size();
+    parcel->writeInt32(numKeys);
+    for (size_t i = 0; i < numKeys; i++) {
+        int32_t keyCode = mKeys.keyAt(i);
+        const Key* key = mKeys.valueAt(i);
+        parcel->writeInt32(keyCode);
+        parcel->writeInt32(key->label);
+        parcel->writeInt32(key->number);
+        for (const Behavior* behavior = key->firstBehavior; behavior != NULL;
+                behavior = behavior->next) {
+            parcel->writeInt32(1);
+            parcel->writeInt32(behavior->metaState);
+            parcel->writeInt32(behavior->character);
+            parcel->writeInt32(behavior->fallbackKeyCode);
+        }
+        parcel->writeInt32(0);
+    }
+}
+#endif
+
+
+// --- KeyCharacterMap::Key ---
+
+KeyCharacterMap::Key::Key() :
+        label(0), number(0), firstBehavior(NULL) {
+}
+
+KeyCharacterMap::Key::Key(const Key& other) :
+        label(other.label), number(other.number),
+        firstBehavior(other.firstBehavior ? new Behavior(*other.firstBehavior) : NULL) {
+}
+
+KeyCharacterMap::Key::~Key() {
+    Behavior* behavior = firstBehavior;
+    while (behavior) {
+        Behavior* next = behavior->next;
+        delete behavior;
+        behavior = next;
+    }
+}
+
+
+// --- KeyCharacterMap::Behavior ---
+
+KeyCharacterMap::Behavior::Behavior() :
+        next(NULL), metaState(0), character(0), fallbackKeyCode(0) {
+}
+
+KeyCharacterMap::Behavior::Behavior(const Behavior& other) :
+        next(other.next ? new Behavior(*other.next) : NULL),
+        metaState(other.metaState), character(other.character),
+        fallbackKeyCode(other.fallbackKeyCode) {
+}
+
+
+// --- KeyCharacterMap::Parser ---
+
+KeyCharacterMap::Parser::Parser(KeyCharacterMap* map, Tokenizer* tokenizer, Format format) :
+        mMap(map), mTokenizer(tokenizer), mFormat(format), mState(STATE_TOP) {
+}
+
+KeyCharacterMap::Parser::~Parser() {
+}
+
+status_t KeyCharacterMap::Parser::parse() {
+    while (!mTokenizer->isEof()) {
+#if DEBUG_PARSER
+        ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(),
+                mTokenizer->peekRemainderOfLine().string());
+#endif
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+
+        if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
+            switch (mState) {
+            case STATE_TOP: {
+                String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
+                if (keywordToken == "type") {
+                    mTokenizer->skipDelimiters(WHITESPACE);
+                    status_t status = parseType();
+                    if (status) return status;
+                } else if (keywordToken == "map") {
+                    mTokenizer->skipDelimiters(WHITESPACE);
+                    status_t status = parseMap();
+                    if (status) return status;
+                } else if (keywordToken == "key") {
+                    mTokenizer->skipDelimiters(WHITESPACE);
+                    status_t status = parseKey();
+                    if (status) return status;
+                } else {
+                    ALOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(),
+                            keywordToken.string());
+                    return BAD_VALUE;
+                }
+                break;
+            }
+
+            case STATE_KEY: {
+                status_t status = parseKeyProperty();
+                if (status) return status;
+                break;
+            }
+            }
+
+            mTokenizer->skipDelimiters(WHITESPACE);
+            if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
+                ALOGE("%s: Expected end of line or trailing comment, got '%s'.",
+                        mTokenizer->getLocation().string(),
+                        mTokenizer->peekRemainderOfLine().string());
+                return BAD_VALUE;
+            }
+        }
+
+        mTokenizer->nextLine();
+    }
+
+    if (mState != STATE_TOP) {
+        ALOGE("%s: Unterminated key description at end of file.",
+                mTokenizer->getLocation().string());
+        return BAD_VALUE;
+    }
+
+    if (mMap->mType == KEYBOARD_TYPE_UNKNOWN) {
+        ALOGE("%s: Keyboard layout missing required keyboard 'type' declaration.",
+                mTokenizer->getLocation().string());
+        return BAD_VALUE;
+    }
+
+    if (mFormat == FORMAT_BASE) {
+        if (mMap->mType == KEYBOARD_TYPE_OVERLAY) {
+            ALOGE("%s: Base keyboard layout must specify a keyboard 'type' other than 'OVERLAY'.",
+                    mTokenizer->getLocation().string());
+            return BAD_VALUE;
+        }
+    } else if (mFormat == FORMAT_OVERLAY) {
+        if (mMap->mType != KEYBOARD_TYPE_OVERLAY) {
+            ALOGE("%s: Overlay keyboard layout missing required keyboard "
+                    "'type OVERLAY' declaration.",
+                    mTokenizer->getLocation().string());
+            return BAD_VALUE;
+        }
+    }
+
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseType() {
+    if (mMap->mType != KEYBOARD_TYPE_UNKNOWN) {
+        ALOGE("%s: Duplicate keyboard 'type' declaration.",
+                mTokenizer->getLocation().string());
+        return BAD_VALUE;
+    }
+
+    KeyboardType type;
+    String8 typeToken = mTokenizer->nextToken(WHITESPACE);
+    if (typeToken == "NUMERIC") {
+        type = KEYBOARD_TYPE_NUMERIC;
+    } else if (typeToken == "PREDICTIVE") {
+        type = KEYBOARD_TYPE_PREDICTIVE;
+    } else if (typeToken == "ALPHA") {
+        type = KEYBOARD_TYPE_ALPHA;
+    } else if (typeToken == "FULL") {
+        type = KEYBOARD_TYPE_FULL;
+    } else if (typeToken == "SPECIAL_FUNCTION") {
+        type = KEYBOARD_TYPE_SPECIAL_FUNCTION;
+    } else if (typeToken == "OVERLAY") {
+        type = KEYBOARD_TYPE_OVERLAY;
+    } else {
+        ALOGE("%s: Expected keyboard type label, got '%s'.", mTokenizer->getLocation().string(),
+                typeToken.string());
+        return BAD_VALUE;
+    }
+
+#if DEBUG_PARSER
+    ALOGD("Parsed type: type=%d.", type);
+#endif
+    mMap->mType = type;
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseMap() {
+    String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
+    if (keywordToken == "key") {
+        mTokenizer->skipDelimiters(WHITESPACE);
+        return parseMapKey();
+    }
+    ALOGE("%s: Expected keyword after 'map', got '%s'.", mTokenizer->getLocation().string(),
+            keywordToken.string());
+    return BAD_VALUE;
+}
+
+status_t KeyCharacterMap::Parser::parseMapKey() {
+    String8 codeToken = mTokenizer->nextToken(WHITESPACE);
+    bool mapUsage = false;
+    if (codeToken == "usage") {
+        mapUsage = true;
+        mTokenizer->skipDelimiters(WHITESPACE);
+        codeToken = mTokenizer->nextToken(WHITESPACE);
+    }
+
+    char* end;
+    int32_t code = int32_t(strtol(codeToken.string(), &end, 0));
+    if (*end) {
+        ALOGE("%s: Expected key %s number, got '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
+        return BAD_VALUE;
+    }
+    KeyedVector<int32_t, int32_t>& map =
+            mapUsage ? mMap->mKeysByUsageCode : mMap->mKeysByScanCode;
+    if (map.indexOfKey(code) >= 0) {
+        ALOGE("%s: Duplicate entry for key %s '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
+        return BAD_VALUE;
+    }
+
+    mTokenizer->skipDelimiters(WHITESPACE);
+    String8 keyCodeToken = mTokenizer->nextToken(WHITESPACE);
+    int32_t keyCode = getKeyCodeByLabel(keyCodeToken.string());
+    if (!keyCode) {
+        ALOGE("%s: Expected key code label, got '%s'.", mTokenizer->getLocation().string(),
+                keyCodeToken.string());
+        return BAD_VALUE;
+    }
+
+#if DEBUG_PARSER
+    ALOGD("Parsed map key %s: code=%d, keyCode=%d.",
+            mapUsage ? "usage" : "scan code", code, keyCode);
+#endif
+    map.add(code, keyCode);
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseKey() {
+    String8 keyCodeToken = mTokenizer->nextToken(WHITESPACE);
+    int32_t keyCode = getKeyCodeByLabel(keyCodeToken.string());
+    if (!keyCode) {
+        ALOGE("%s: Expected key code label, got '%s'.", mTokenizer->getLocation().string(),
+                keyCodeToken.string());
+        return BAD_VALUE;
+    }
+    if (mMap->mKeys.indexOfKey(keyCode) >= 0) {
+        ALOGE("%s: Duplicate entry for key code '%s'.", mTokenizer->getLocation().string(),
+                keyCodeToken.string());
+        return BAD_VALUE;
+    }
+
+    mTokenizer->skipDelimiters(WHITESPACE);
+    String8 openBraceToken = mTokenizer->nextToken(WHITESPACE);
+    if (openBraceToken != "{") {
+        ALOGE("%s: Expected '{' after key code label, got '%s'.",
+                mTokenizer->getLocation().string(), openBraceToken.string());
+        return BAD_VALUE;
+    }
+
+#if DEBUG_PARSER
+    ALOGD("Parsed beginning of key: keyCode=%d.", keyCode);
+#endif
+    mKeyCode = keyCode;
+    mMap->mKeys.add(keyCode, new Key());
+    mState = STATE_KEY;
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseKeyProperty() {
+    Key* key = mMap->mKeys.valueFor(mKeyCode);
+    String8 token = mTokenizer->nextToken(WHITESPACE_OR_PROPERTY_DELIMITER);
+    if (token == "}") {
+        mState = STATE_TOP;
+        return finishKey(key);
+    }
+
+    Vector<Property> properties;
+
+    // Parse all comma-delimited property names up to the first colon.
+    for (;;) {
+        if (token == "label") {
+            properties.add(Property(PROPERTY_LABEL));
+        } else if (token == "number") {
+            properties.add(Property(PROPERTY_NUMBER));
+        } else {
+            int32_t metaState;
+            status_t status = parseModifier(token, &metaState);
+            if (status) {
+                ALOGE("%s: Expected a property name or modifier, got '%s'.",
+                        mTokenizer->getLocation().string(), token.string());
+                return status;
+            }
+            properties.add(Property(PROPERTY_META, metaState));
+        }
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+        if (!mTokenizer->isEol()) {
+            char ch = mTokenizer->nextChar();
+            if (ch == ':') {
+                break;
+            } else if (ch == ',') {
+                mTokenizer->skipDelimiters(WHITESPACE);
+                token = mTokenizer->nextToken(WHITESPACE_OR_PROPERTY_DELIMITER);
+                continue;
+            }
+        }
+
+        ALOGE("%s: Expected ',' or ':' after property name.",
+                mTokenizer->getLocation().string());
+        return BAD_VALUE;
+    }
+
+    // Parse behavior after the colon.
+    mTokenizer->skipDelimiters(WHITESPACE);
+
+    Behavior behavior;
+    bool haveCharacter = false;
+    bool haveFallback = false;
+
+    do {
+        char ch = mTokenizer->peekChar();
+        if (ch == '\'') {
+            char16_t character;
+            status_t status = parseCharacterLiteral(&character);
+            if (status || !character) {
+                ALOGE("%s: Invalid character literal for key.",
+                        mTokenizer->getLocation().string());
+                return BAD_VALUE;
+            }
+            if (haveCharacter) {
+                ALOGE("%s: Cannot combine multiple character literals or 'none'.",
+                        mTokenizer->getLocation().string());
+                return BAD_VALUE;
+            }
+            behavior.character = character;
+            haveCharacter = true;
+        } else {
+            token = mTokenizer->nextToken(WHITESPACE);
+            if (token == "none") {
+                if (haveCharacter) {
+                    ALOGE("%s: Cannot combine multiple character literals or 'none'.",
+                            mTokenizer->getLocation().string());
+                    return BAD_VALUE;
+                }
+                haveCharacter = true;
+            } else if (token == "fallback") {
+                mTokenizer->skipDelimiters(WHITESPACE);
+                token = mTokenizer->nextToken(WHITESPACE);
+                int32_t keyCode = getKeyCodeByLabel(token.string());
+                if (!keyCode) {
+                    ALOGE("%s: Invalid key code label for fallback behavior, got '%s'.",
+                            mTokenizer->getLocation().string(),
+                            token.string());
+                    return BAD_VALUE;
+                }
+                if (haveFallback) {
+                    ALOGE("%s: Cannot combine multiple fallback key codes.",
+                            mTokenizer->getLocation().string());
+                    return BAD_VALUE;
+                }
+                behavior.fallbackKeyCode = keyCode;
+                haveFallback = true;
+            } else {
+                ALOGE("%s: Expected a key behavior after ':'.",
+                        mTokenizer->getLocation().string());
+                return BAD_VALUE;
+            }
+        }
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+    } while (!mTokenizer->isEol() && mTokenizer->peekChar() != '#');
+
+    // Add the behavior.
+    for (size_t i = 0; i < properties.size(); i++) {
+        const Property& property = properties.itemAt(i);
+        switch (property.property) {
+        case PROPERTY_LABEL:
+            if (key->label) {
+                ALOGE("%s: Duplicate label for key.",
+                        mTokenizer->getLocation().string());
+                return BAD_VALUE;
+            }
+            key->label = behavior.character;
+#if DEBUG_PARSER
+            ALOGD("Parsed key label: keyCode=%d, label=%d.", mKeyCode, key->label);
+#endif
+            break;
+        case PROPERTY_NUMBER:
+            if (key->number) {
+                ALOGE("%s: Duplicate number for key.",
+                        mTokenizer->getLocation().string());
+                return BAD_VALUE;
+            }
+            key->number = behavior.character;
+#if DEBUG_PARSER
+            ALOGD("Parsed key number: keyCode=%d, number=%d.", mKeyCode, key->number);
+#endif
+            break;
+        case PROPERTY_META: {
+            for (Behavior* b = key->firstBehavior; b; b = b->next) {
+                if (b->metaState == property.metaState) {
+                    ALOGE("%s: Duplicate key behavior for modifier.",
+                            mTokenizer->getLocation().string());
+                    return BAD_VALUE;
+                }
+            }
+            Behavior* newBehavior = new Behavior(behavior);
+            newBehavior->metaState = property.metaState;
+            newBehavior->next = key->firstBehavior;
+            key->firstBehavior = newBehavior;
+#if DEBUG_PARSER
+            ALOGD("Parsed key meta: keyCode=%d, meta=0x%x, char=%d, fallback=%d.", mKeyCode,
+                    newBehavior->metaState, newBehavior->character, newBehavior->fallbackKeyCode);
+#endif
+            break;
+        }
+        }
+    }
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::finishKey(Key* key) {
+    // Fill in default number property.
+    if (!key->number) {
+        char16_t digit = 0;
+        char16_t symbol = 0;
+        for (Behavior* b = key->firstBehavior; b; b = b->next) {
+            char16_t ch = b->character;
+            if (ch) {
+                if (ch >= '0' && ch <= '9') {
+                    digit = ch;
+                } else if (ch == '(' || ch == ')' || ch == '#' || ch == '*'
+                        || ch == '-' || ch == '+' || ch == ',' || ch == '.'
+                        || ch == '\'' || ch == ':' || ch == ';' || ch == '/') {
+                    symbol = ch;
+                }
+            }
+        }
+        key->number = digit ? digit : symbol;
+    }
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseModifier(const String8& token, int32_t* outMetaState) {
+    if (token == "base") {
+        *outMetaState = 0;
+        return NO_ERROR;
+    }
+
+    int32_t combinedMeta = 0;
+
+    const char* str = token.string();
+    const char* start = str;
+    for (const char* cur = str; ; cur++) {
+        char ch = *cur;
+        if (ch == '+' || ch == '\0') {
+            size_t len = cur - start;
+            int32_t metaState = 0;
+            for (size_t i = 0; i < sizeof(modifiers) / sizeof(Modifier); i++) {
+                if (strlen(modifiers[i].label) == len
+                        && strncmp(modifiers[i].label, start, len) == 0) {
+                    metaState = modifiers[i].metaState;
+                    break;
+                }
+            }
+            if (!metaState) {
+                return BAD_VALUE;
+            }
+            if (combinedMeta & metaState) {
+                ALOGE("%s: Duplicate modifier combination '%s'.",
+                        mTokenizer->getLocation().string(), token.string());
+                return BAD_VALUE;
+            }
+
+            combinedMeta |= metaState;
+            start = cur + 1;
+
+            if (ch == '\0') {
+                break;
+            }
+        }
+    }
+    *outMetaState = combinedMeta;
+    return NO_ERROR;
+}
+
+status_t KeyCharacterMap::Parser::parseCharacterLiteral(char16_t* outCharacter) {
+    char ch = mTokenizer->nextChar();
+    if (ch != '\'') {
+        goto Error;
+    }
+
+    ch = mTokenizer->nextChar();
+    if (ch == '\\') {
+        // Escape sequence.
+        ch = mTokenizer->nextChar();
+        if (ch == 'n') {
+            *outCharacter = '\n';
+        } else if (ch == 't') {
+            *outCharacter = '\t';
+        } else if (ch == '\\') {
+            *outCharacter = '\\';
+        } else if (ch == '\'') {
+            *outCharacter = '\'';
+        } else if (ch == '"') {
+            *outCharacter = '"';
+        } else if (ch == 'u') {
+            *outCharacter = 0;
+            for (int i = 0; i < 4; i++) {
+                ch = mTokenizer->nextChar();
+                int digit;
+                if (ch >= '0' && ch <= '9') {
+                    digit = ch - '0';
+                } else if (ch >= 'A' && ch <= 'F') {
+                    digit = ch - 'A' + 10;
+                } else if (ch >= 'a' && ch <= 'f') {
+                    digit = ch - 'a' + 10;
+                } else {
+                    goto Error;
+                }
+                *outCharacter = (*outCharacter << 4) | digit;
+            }
+        } else {
+            goto Error;
+        }
+    } else if (ch >= 32 && ch <= 126 && ch != '\'') {
+        // ASCII literal character.
+        *outCharacter = ch;
+    } else {
+        goto Error;
+    }
+
+    ch = mTokenizer->nextChar();
+    if (ch != '\'') {
+        goto Error;
+    }
+
+    // Ensure that we consumed the entire token.
+    if (mTokenizer->nextToken(WHITESPACE).isEmpty()) {
+        return NO_ERROR;
+    }
+
+Error:
+    ALOGE("%s: Malformed character literal.", mTokenizer->getLocation().string());
+    return BAD_VALUE;
+}
+
+} // namespace android
diff --git a/libs/input/KeyLayoutMap.cpp b/libs/input/KeyLayoutMap.cpp
new file mode 100644
index 0000000..2f5494b
--- /dev/null
+++ b/libs/input/KeyLayoutMap.cpp
@@ -0,0 +1,367 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "KeyLayoutMap"
+
+#include <stdlib.h>
+
+#include <android/keycodes.h>
+#include <input/Keyboard.h>
+#include <input/KeyLayoutMap.h>
+#include <utils/Log.h>
+#include <utils/Errors.h>
+#include <utils/Tokenizer.h>
+#include <utils/Timers.h>
+
+// Enables debug output for the parser.
+#define DEBUG_PARSER 0
+
+// Enables debug output for parser performance.
+#define DEBUG_PARSER_PERFORMANCE 0
+
+// Enables debug output for mapping.
+#define DEBUG_MAPPING 0
+
+
+namespace android {
+
+static const char* WHITESPACE = " \t\r";
+
+// --- KeyLayoutMap ---
+
+KeyLayoutMap::KeyLayoutMap() {
+}
+
+KeyLayoutMap::~KeyLayoutMap() {
+}
+
+status_t KeyLayoutMap::load(const String8& filename, sp<KeyLayoutMap>* outMap) {
+    outMap->clear();
+
+    Tokenizer* tokenizer;
+    status_t status = Tokenizer::open(filename, &tokenizer);
+    if (status) {
+        ALOGE("Error %d opening key layout map file %s.", status, filename.string());
+    } else {
+        sp<KeyLayoutMap> map = new KeyLayoutMap();
+        if (!map.get()) {
+            ALOGE("Error allocating key layout map.");
+            status = NO_MEMORY;
+        } else {
+#if DEBUG_PARSER_PERFORMANCE
+            nsecs_t startTime = systemTime(SYSTEM_TIME_MONOTONIC);
+#endif
+            Parser parser(map.get(), tokenizer);
+            status = parser.parse();
+#if DEBUG_PARSER_PERFORMANCE
+            nsecs_t elapsedTime = systemTime(SYSTEM_TIME_MONOTONIC) - startTime;
+            ALOGD("Parsed key layout map file '%s' %d lines in %0.3fms.",
+                    tokenizer->getFilename().string(), tokenizer->getLineNumber(),
+                    elapsedTime / 1000000.0);
+#endif
+            if (!status) {
+                *outMap = map;
+            }
+        }
+        delete tokenizer;
+    }
+    return status;
+}
+
+status_t KeyLayoutMap::mapKey(int32_t scanCode, int32_t usageCode,
+        int32_t* outKeyCode, uint32_t* outFlags) const {
+    const Key* key = getKey(scanCode, usageCode);
+    if (!key) {
+#if DEBUG_MAPPING
+        ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Failed.", scanCode, usageCode);
+#endif
+        *outKeyCode = AKEYCODE_UNKNOWN;
+        *outFlags = 0;
+        return NAME_NOT_FOUND;
+    }
+
+    *outKeyCode = key->keyCode;
+    *outFlags = key->flags;
+
+#if DEBUG_MAPPING
+    ALOGD("mapKey: scanCode=%d, usageCode=0x%08x ~ Result keyCode=%d, outFlags=0x%08x.",
+            scanCode, usageCode, *outKeyCode, *outFlags);
+#endif
+    return NO_ERROR;
+}
+
+const KeyLayoutMap::Key* KeyLayoutMap::getKey(int32_t scanCode, int32_t usageCode) const {
+    if (usageCode) {
+        ssize_t index = mKeysByUsageCode.indexOfKey(usageCode);
+        if (index >= 0) {
+            return &mKeysByUsageCode.valueAt(index);
+        }
+    }
+    if (scanCode) {
+        ssize_t index = mKeysByScanCode.indexOfKey(scanCode);
+        if (index >= 0) {
+            return &mKeysByScanCode.valueAt(index);
+        }
+    }
+    return NULL;
+}
+
+status_t KeyLayoutMap::findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const {
+    const size_t N = mKeysByScanCode.size();
+    for (size_t i=0; i<N; i++) {
+        if (mKeysByScanCode.valueAt(i).keyCode == keyCode) {
+            outScanCodes->add(mKeysByScanCode.keyAt(i));
+        }
+    }
+    return NO_ERROR;
+}
+
+status_t KeyLayoutMap::mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const {
+    ssize_t index = mAxes.indexOfKey(scanCode);
+    if (index < 0) {
+#if DEBUG_MAPPING
+        ALOGD("mapAxis: scanCode=%d ~ Failed.", scanCode);
+#endif
+        return NAME_NOT_FOUND;
+    }
+
+    *outAxisInfo = mAxes.valueAt(index);
+
+#if DEBUG_MAPPING
+    ALOGD("mapAxis: scanCode=%d ~ Result mode=%d, axis=%d, highAxis=%d, "
+            "splitValue=%d, flatOverride=%d.",
+            scanCode,
+            outAxisInfo->mode, outAxisInfo->axis, outAxisInfo->highAxis,
+            outAxisInfo->splitValue, outAxisInfo->flatOverride);
+#endif
+    return NO_ERROR;
+}
+
+
+// --- KeyLayoutMap::Parser ---
+
+KeyLayoutMap::Parser::Parser(KeyLayoutMap* map, Tokenizer* tokenizer) :
+        mMap(map), mTokenizer(tokenizer) {
+}
+
+KeyLayoutMap::Parser::~Parser() {
+}
+
+status_t KeyLayoutMap::Parser::parse() {
+    while (!mTokenizer->isEof()) {
+#if DEBUG_PARSER
+        ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(),
+                mTokenizer->peekRemainderOfLine().string());
+#endif
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+
+        if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
+            String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
+            if (keywordToken == "key") {
+                mTokenizer->skipDelimiters(WHITESPACE);
+                status_t status = parseKey();
+                if (status) return status;
+            } else if (keywordToken == "axis") {
+                mTokenizer->skipDelimiters(WHITESPACE);
+                status_t status = parseAxis();
+                if (status) return status;
+            } else {
+                ALOGE("%s: Expected keyword, got '%s'.", mTokenizer->getLocation().string(),
+                        keywordToken.string());
+                return BAD_VALUE;
+            }
+
+            mTokenizer->skipDelimiters(WHITESPACE);
+            if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
+                ALOGE("%s: Expected end of line or trailing comment, got '%s'.",
+                        mTokenizer->getLocation().string(),
+                        mTokenizer->peekRemainderOfLine().string());
+                return BAD_VALUE;
+            }
+        }
+
+        mTokenizer->nextLine();
+    }
+    return NO_ERROR;
+}
+
+status_t KeyLayoutMap::Parser::parseKey() {
+    String8 codeToken = mTokenizer->nextToken(WHITESPACE);
+    bool mapUsage = false;
+    if (codeToken == "usage") {
+        mapUsage = true;
+        mTokenizer->skipDelimiters(WHITESPACE);
+        codeToken = mTokenizer->nextToken(WHITESPACE);
+    }
+
+    char* end;
+    int32_t code = int32_t(strtol(codeToken.string(), &end, 0));
+    if (*end) {
+        ALOGE("%s: Expected key %s number, got '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
+        return BAD_VALUE;
+    }
+    KeyedVector<int32_t, Key>& map =
+            mapUsage ? mMap->mKeysByUsageCode : mMap->mKeysByScanCode;
+    if (map.indexOfKey(code) >= 0) {
+        ALOGE("%s: Duplicate entry for key %s '%s'.", mTokenizer->getLocation().string(),
+                mapUsage ? "usage" : "scan code", codeToken.string());
+        return BAD_VALUE;
+    }
+
+    mTokenizer->skipDelimiters(WHITESPACE);
+    String8 keyCodeToken = mTokenizer->nextToken(WHITESPACE);
+    int32_t keyCode = getKeyCodeByLabel(keyCodeToken.string());
+    if (!keyCode) {
+        ALOGE("%s: Expected key code label, got '%s'.", mTokenizer->getLocation().string(),
+                keyCodeToken.string());
+        return BAD_VALUE;
+    }
+
+    uint32_t flags = 0;
+    for (;;) {
+        mTokenizer->skipDelimiters(WHITESPACE);
+        if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') break;
+
+        String8 flagToken = mTokenizer->nextToken(WHITESPACE);
+        uint32_t flag = getKeyFlagByLabel(flagToken.string());
+        if (!flag) {
+            ALOGE("%s: Expected key flag label, got '%s'.", mTokenizer->getLocation().string(),
+                    flagToken.string());
+            return BAD_VALUE;
+        }
+        if (flags & flag) {
+            ALOGE("%s: Duplicate key flag '%s'.", mTokenizer->getLocation().string(),
+                    flagToken.string());
+            return BAD_VALUE;
+        }
+        flags |= flag;
+    }
+
+#if DEBUG_PARSER
+    ALOGD("Parsed key %s: code=%d, keyCode=%d, flags=0x%08x.",
+            mapUsage ? "usage" : "scan code", code, keyCode, flags);
+#endif
+    Key key;
+    key.keyCode = keyCode;
+    key.flags = flags;
+    map.add(code, key);
+    return NO_ERROR;
+}
+
+status_t KeyLayoutMap::Parser::parseAxis() {
+    String8 scanCodeToken = mTokenizer->nextToken(WHITESPACE);
+    char* end;
+    int32_t scanCode = int32_t(strtol(scanCodeToken.string(), &end, 0));
+    if (*end) {
+        ALOGE("%s: Expected axis scan code number, got '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.string());
+        return BAD_VALUE;
+    }
+    if (mMap->mAxes.indexOfKey(scanCode) >= 0) {
+        ALOGE("%s: Duplicate entry for axis scan code '%s'.", mTokenizer->getLocation().string(),
+                scanCodeToken.string());
+        return BAD_VALUE;
+    }
+
+    AxisInfo axisInfo;
+
+    mTokenizer->skipDelimiters(WHITESPACE);
+    String8 token = mTokenizer->nextToken(WHITESPACE);
+    if (token == "invert") {
+        axisInfo.mode = AxisInfo::MODE_INVERT;
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+        String8 axisToken = mTokenizer->nextToken(WHITESPACE);
+        axisInfo.axis = getAxisByLabel(axisToken.string());
+        if (axisInfo.axis < 0) {
+            ALOGE("%s: Expected inverted axis label, got '%s'.",
+                    mTokenizer->getLocation().string(), axisToken.string());
+            return BAD_VALUE;
+        }
+    } else if (token == "split") {
+        axisInfo.mode = AxisInfo::MODE_SPLIT;
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+        String8 splitToken = mTokenizer->nextToken(WHITESPACE);
+        axisInfo.splitValue = int32_t(strtol(splitToken.string(), &end, 0));
+        if (*end) {
+            ALOGE("%s: Expected split value, got '%s'.",
+                    mTokenizer->getLocation().string(), splitToken.string());
+            return BAD_VALUE;
+        }
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+        String8 lowAxisToken = mTokenizer->nextToken(WHITESPACE);
+        axisInfo.axis = getAxisByLabel(lowAxisToken.string());
+        if (axisInfo.axis < 0) {
+            ALOGE("%s: Expected low axis label, got '%s'.",
+                    mTokenizer->getLocation().string(), lowAxisToken.string());
+            return BAD_VALUE;
+        }
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+        String8 highAxisToken = mTokenizer->nextToken(WHITESPACE);
+        axisInfo.highAxis = getAxisByLabel(highAxisToken.string());
+        if (axisInfo.highAxis < 0) {
+            ALOGE("%s: Expected high axis label, got '%s'.",
+                    mTokenizer->getLocation().string(), highAxisToken.string());
+            return BAD_VALUE;
+        }
+    } else {
+        axisInfo.axis = getAxisByLabel(token.string());
+        if (axisInfo.axis < 0) {
+            ALOGE("%s: Expected axis label, 'split' or 'invert', got '%s'.",
+                    mTokenizer->getLocation().string(), token.string());
+            return BAD_VALUE;
+        }
+    }
+
+    for (;;) {
+        mTokenizer->skipDelimiters(WHITESPACE);
+        if (mTokenizer->isEol() || mTokenizer->peekChar() == '#') {
+            break;
+        }
+        String8 keywordToken = mTokenizer->nextToken(WHITESPACE);
+        if (keywordToken == "flat") {
+            mTokenizer->skipDelimiters(WHITESPACE);
+            String8 flatToken = mTokenizer->nextToken(WHITESPACE);
+            axisInfo.flatOverride = int32_t(strtol(flatToken.string(), &end, 0));
+            if (*end) {
+                ALOGE("%s: Expected flat value, got '%s'.",
+                        mTokenizer->getLocation().string(), flatToken.string());
+                return BAD_VALUE;
+            }
+        } else {
+            ALOGE("%s: Expected keyword 'flat', got '%s'.",
+                    mTokenizer->getLocation().string(), keywordToken.string());
+            return BAD_VALUE;
+        }
+    }
+
+#if DEBUG_PARSER
+    ALOGD("Parsed axis: scanCode=%d, mode=%d, axis=%d, highAxis=%d, "
+            "splitValue=%d, flatOverride=%d.",
+            scanCode,
+            axisInfo.mode, axisInfo.axis, axisInfo.highAxis,
+            axisInfo.splitValue, axisInfo.flatOverride);
+#endif
+    mMap->mAxes.add(scanCode, axisInfo);
+    return NO_ERROR;
+}
+
+};
diff --git a/libs/input/Keyboard.cpp b/libs/input/Keyboard.cpp
new file mode 100644
index 0000000..b6551ee
--- /dev/null
+++ b/libs/input/Keyboard.cpp
@@ -0,0 +1,297 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Keyboard"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+
+#include <input/Keyboard.h>
+#include <input/KeycodeLabels.h>
+#include <input/KeyLayoutMap.h>
+#include <input/KeyCharacterMap.h>
+#include <input/InputDevice.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+namespace android {
+
+// --- KeyMap ---
+
+KeyMap::KeyMap() {
+}
+
+KeyMap::~KeyMap() {
+}
+
+status_t KeyMap::load(const InputDeviceIdentifier& deviceIdenfifier,
+        const PropertyMap* deviceConfiguration) {
+    // Use the configured key layout if available.
+    if (deviceConfiguration) {
+        String8 keyLayoutName;
+        if (deviceConfiguration->tryGetProperty(String8("keyboard.layout"),
+                keyLayoutName)) {
+            status_t status = loadKeyLayout(deviceIdenfifier, keyLayoutName);
+            if (status == NAME_NOT_FOUND) {
+                ALOGE("Configuration for keyboard device '%s' requested keyboard layout '%s' but "
+                        "it was not found.",
+                        deviceIdenfifier.name.string(), keyLayoutName.string());
+            }
+        }
+
+        String8 keyCharacterMapName;
+        if (deviceConfiguration->tryGetProperty(String8("keyboard.characterMap"),
+                keyCharacterMapName)) {
+            status_t status = loadKeyCharacterMap(deviceIdenfifier, keyCharacterMapName);
+            if (status == NAME_NOT_FOUND) {
+                ALOGE("Configuration for keyboard device '%s' requested keyboard character "
+                        "map '%s' but it was not found.",
+                        deviceIdenfifier.name.string(), keyLayoutName.string());
+            }
+        }
+
+        if (isComplete()) {
+            return OK;
+        }
+    }
+
+    // Try searching by device identifier.
+    if (probeKeyMap(deviceIdenfifier, String8::empty())) {
+        return OK;
+    }
+
+    // Fall back on the Generic key map.
+    // TODO Apply some additional heuristics here to figure out what kind of
+    //      generic key map to use (US English, etc.) for typical external keyboards.
+    if (probeKeyMap(deviceIdenfifier, String8("Generic"))) {
+        return OK;
+    }
+
+    // Try the Virtual key map as a last resort.
+    if (probeKeyMap(deviceIdenfifier, String8("Virtual"))) {
+        return OK;
+    }
+
+    // Give up!
+    ALOGE("Could not determine key map for device '%s' and no default key maps were found!",
+            deviceIdenfifier.name.string());
+    return NAME_NOT_FOUND;
+}
+
+bool KeyMap::probeKeyMap(const InputDeviceIdentifier& deviceIdentifier,
+        const String8& keyMapName) {
+    if (!haveKeyLayout()) {
+        loadKeyLayout(deviceIdentifier, keyMapName);
+    }
+    if (!haveKeyCharacterMap()) {
+        loadKeyCharacterMap(deviceIdentifier, keyMapName);
+    }
+    return isComplete();
+}
+
+status_t KeyMap::loadKeyLayout(const InputDeviceIdentifier& deviceIdentifier,
+        const String8& name) {
+    String8 path(getPath(deviceIdentifier, name,
+            INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_LAYOUT));
+    if (path.isEmpty()) {
+        return NAME_NOT_FOUND;
+    }
+
+    status_t status = KeyLayoutMap::load(path, &keyLayoutMap);
+    if (status) {
+        return status;
+    }
+
+    keyLayoutFile.setTo(path);
+    return OK;
+}
+
+status_t KeyMap::loadKeyCharacterMap(const InputDeviceIdentifier& deviceIdentifier,
+        const String8& name) {
+    String8 path(getPath(deviceIdentifier, name,
+            INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_CHARACTER_MAP));
+    if (path.isEmpty()) {
+        return NAME_NOT_FOUND;
+    }
+
+    status_t status = KeyCharacterMap::load(path,
+            KeyCharacterMap::FORMAT_BASE, &keyCharacterMap);
+    if (status) {
+        return status;
+    }
+
+    keyCharacterMapFile.setTo(path);
+    return OK;
+}
+
+String8 KeyMap::getPath(const InputDeviceIdentifier& deviceIdentifier,
+        const String8& name, InputDeviceConfigurationFileType type) {
+    return name.isEmpty()
+            ? getInputDeviceConfigurationFilePathByDeviceIdentifier(deviceIdentifier, type)
+            : getInputDeviceConfigurationFilePathByName(name, type);
+}
+
+
+// --- Global functions ---
+
+bool isEligibleBuiltInKeyboard(const InputDeviceIdentifier& deviceIdentifier,
+        const PropertyMap* deviceConfiguration, const KeyMap* keyMap) {
+    if (!keyMap->haveKeyCharacterMap()
+            || keyMap->keyCharacterMap->getKeyboardType()
+                    == KeyCharacterMap::KEYBOARD_TYPE_SPECIAL_FUNCTION) {
+        return false;
+    }
+
+    if (deviceConfiguration) {
+        bool builtIn = false;
+        if (deviceConfiguration->tryGetProperty(String8("keyboard.builtIn"), builtIn)
+                && builtIn) {
+            return true;
+        }
+    }
+
+    return strstr(deviceIdentifier.name.string(), "-keypad");
+}
+
+static int lookupValueByLabel(const char* literal, const KeycodeLabel *list) {
+    while (list->literal) {
+        if (strcmp(literal, list->literal) == 0) {
+            return list->value;
+        }
+        list++;
+    }
+    return list->value;
+}
+
+static const char* lookupLabelByValue(int value, const KeycodeLabel *list) {
+    while (list->literal) {
+        if (list->value == value) {
+            return list->literal;
+        }
+        list++;
+    }
+    return NULL;
+}
+
+int32_t getKeyCodeByLabel(const char* label) {
+    return int32_t(lookupValueByLabel(label, KEYCODES));
+}
+
+uint32_t getKeyFlagByLabel(const char* label) {
+    return uint32_t(lookupValueByLabel(label, FLAGS));
+}
+
+int32_t getAxisByLabel(const char* label) {
+    return int32_t(lookupValueByLabel(label, AXES));
+}
+
+const char* getAxisLabel(int32_t axisId) {
+    return lookupLabelByValue(axisId, AXES);
+}
+
+static int32_t setEphemeralMetaState(int32_t mask, bool down, int32_t oldMetaState) {
+    int32_t newMetaState;
+    if (down) {
+        newMetaState = oldMetaState | mask;
+    } else {
+        newMetaState = oldMetaState &
+                ~(mask | AMETA_ALT_ON | AMETA_SHIFT_ON | AMETA_CTRL_ON | AMETA_META_ON);
+    }
+
+    if (newMetaState & (AMETA_ALT_LEFT_ON | AMETA_ALT_RIGHT_ON)) {
+        newMetaState |= AMETA_ALT_ON;
+    }
+
+    if (newMetaState & (AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_RIGHT_ON)) {
+        newMetaState |= AMETA_SHIFT_ON;
+    }
+
+    if (newMetaState & (AMETA_CTRL_LEFT_ON | AMETA_CTRL_RIGHT_ON)) {
+        newMetaState |= AMETA_CTRL_ON;
+    }
+
+    if (newMetaState & (AMETA_META_LEFT_ON | AMETA_META_RIGHT_ON)) {
+        newMetaState |= AMETA_META_ON;
+    }
+    return newMetaState;
+}
+
+static int32_t toggleLockedMetaState(int32_t mask, bool down, int32_t oldMetaState) {
+    if (down) {
+        return oldMetaState;
+    } else {
+        return oldMetaState ^ mask;
+    }
+}
+
+int32_t updateMetaState(int32_t keyCode, bool down, int32_t oldMetaState) {
+    int32_t mask;
+    switch (keyCode) {
+    case AKEYCODE_ALT_LEFT:
+        return setEphemeralMetaState(AMETA_ALT_LEFT_ON, down, oldMetaState);
+    case AKEYCODE_ALT_RIGHT:
+        return setEphemeralMetaState(AMETA_ALT_RIGHT_ON, down, oldMetaState);
+    case AKEYCODE_SHIFT_LEFT:
+        return setEphemeralMetaState(AMETA_SHIFT_LEFT_ON, down, oldMetaState);
+    case AKEYCODE_SHIFT_RIGHT:
+        return setEphemeralMetaState(AMETA_SHIFT_RIGHT_ON, down, oldMetaState);
+    case AKEYCODE_SYM:
+        return setEphemeralMetaState(AMETA_SYM_ON, down, oldMetaState);
+    case AKEYCODE_FUNCTION:
+        return setEphemeralMetaState(AMETA_FUNCTION_ON, down, oldMetaState);
+    case AKEYCODE_CTRL_LEFT:
+        return setEphemeralMetaState(AMETA_CTRL_LEFT_ON, down, oldMetaState);
+    case AKEYCODE_CTRL_RIGHT:
+        return setEphemeralMetaState(AMETA_CTRL_RIGHT_ON, down, oldMetaState);
+    case AKEYCODE_META_LEFT:
+        return setEphemeralMetaState(AMETA_META_LEFT_ON, down, oldMetaState);
+    case AKEYCODE_META_RIGHT:
+        return setEphemeralMetaState(AMETA_META_RIGHT_ON, down, oldMetaState);
+    case AKEYCODE_CAPS_LOCK:
+        return toggleLockedMetaState(AMETA_CAPS_LOCK_ON, down, oldMetaState);
+    case AKEYCODE_NUM_LOCK:
+        return toggleLockedMetaState(AMETA_NUM_LOCK_ON, down, oldMetaState);
+    case AKEYCODE_SCROLL_LOCK:
+        return toggleLockedMetaState(AMETA_SCROLL_LOCK_ON, down, oldMetaState);
+    default:
+        return oldMetaState;
+    }
+}
+
+bool isMetaKey(int32_t keyCode) {
+    switch (keyCode) {
+    case AKEYCODE_ALT_LEFT:
+    case AKEYCODE_ALT_RIGHT:
+    case AKEYCODE_SHIFT_LEFT:
+    case AKEYCODE_SHIFT_RIGHT:
+    case AKEYCODE_SYM:
+    case AKEYCODE_FUNCTION:
+    case AKEYCODE_CTRL_LEFT:
+    case AKEYCODE_CTRL_RIGHT:
+    case AKEYCODE_META_LEFT:
+    case AKEYCODE_META_RIGHT:
+    case AKEYCODE_CAPS_LOCK:
+    case AKEYCODE_NUM_LOCK:
+    case AKEYCODE_SCROLL_LOCK:
+        return true;
+    default:
+        return false;
+    }
+}
+
+
+} // namespace android
diff --git a/libs/input/VelocityControl.cpp b/libs/input/VelocityControl.cpp
new file mode 100644
index 0000000..bcf55b0
--- /dev/null
+++ b/libs/input/VelocityControl.cpp
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VelocityControl"
+//#define LOG_NDEBUG 0
+
+// Log debug messages about acceleration.
+#define DEBUG_ACCELERATION 0
+
+#include <math.h>
+#include <limits.h>
+
+#include <input/VelocityControl.h>
+#include <utils/BitSet.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+// --- VelocityControl ---
+
+const nsecs_t VelocityControl::STOP_TIME;
+
+VelocityControl::VelocityControl() {
+    reset();
+}
+
+void VelocityControl::setParameters(const VelocityControlParameters& parameters) {
+    mParameters = parameters;
+    reset();
+}
+
+void VelocityControl::reset() {
+    mLastMovementTime = LLONG_MIN;
+    mRawPosition.x = 0;
+    mRawPosition.y = 0;
+    mVelocityTracker.clear();
+}
+
+void VelocityControl::move(nsecs_t eventTime, float* deltaX, float* deltaY) {
+    if ((deltaX && *deltaX) || (deltaY && *deltaY)) {
+        if (eventTime >= mLastMovementTime + STOP_TIME) {
+#if DEBUG_ACCELERATION
+            ALOGD("VelocityControl: stopped, last movement was %0.3fms ago",
+                    (eventTime - mLastMovementTime) * 0.000001f);
+#endif
+            reset();
+        }
+
+        mLastMovementTime = eventTime;
+        if (deltaX) {
+            mRawPosition.x += *deltaX;
+        }
+        if (deltaY) {
+            mRawPosition.y += *deltaY;
+        }
+        mVelocityTracker.addMovement(eventTime, BitSet32(BitSet32::valueForBit(0)), &mRawPosition);
+
+        float vx, vy;
+        float scale = mParameters.scale;
+        if (mVelocityTracker.getVelocity(0, &vx, &vy)) {
+            float speed = hypotf(vx, vy) * scale;
+            if (speed >= mParameters.highThreshold) {
+                // Apply full acceleration above the high speed threshold.
+                scale *= mParameters.acceleration;
+            } else if (speed > mParameters.lowThreshold) {
+                // Linearly interpolate the acceleration to apply between the low and high
+                // speed thresholds.
+                scale *= 1 + (speed - mParameters.lowThreshold)
+                        / (mParameters.highThreshold - mParameters.lowThreshold)
+                        * (mParameters.acceleration - 1);
+            }
+
+#if DEBUG_ACCELERATION
+            ALOGD("VelocityControl(%0.3f, %0.3f, %0.3f, %0.3f): "
+                    "vx=%0.3f, vy=%0.3f, speed=%0.3f, accel=%0.3f",
+                    mParameters.scale, mParameters.lowThreshold, mParameters.highThreshold,
+                    mParameters.acceleration,
+                    vx, vy, speed, scale / mParameters.scale);
+#endif
+        } else {
+#if DEBUG_ACCELERATION
+            ALOGD("VelocityControl(%0.3f, %0.3f, %0.3f, %0.3f): unknown velocity",
+                    mParameters.scale, mParameters.lowThreshold, mParameters.highThreshold,
+                    mParameters.acceleration);
+#endif
+        }
+
+        if (deltaX) {
+            *deltaX *= scale;
+        }
+        if (deltaY) {
+            *deltaY *= scale;
+        }
+    }
+}
+
+} // namespace android
diff --git a/libs/input/VelocityTracker.cpp b/libs/input/VelocityTracker.cpp
new file mode 100644
index 0000000..6c70c3c
--- /dev/null
+++ b/libs/input/VelocityTracker.cpp
@@ -0,0 +1,927 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VelocityTracker"
+//#define LOG_NDEBUG 0
+
+// Log debug messages about velocity tracking.
+#define DEBUG_VELOCITY 0
+
+// Log debug messages about the progress of the algorithm itself.
+#define DEBUG_STRATEGY 0
+
+#include <math.h>
+#include <limits.h>
+
+#include <cutils/properties.h>
+#include <input/VelocityTracker.h>
+#include <utils/BitSet.h>
+#include <utils/String8.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+// Nanoseconds per milliseconds.
+static const nsecs_t NANOS_PER_MS = 1000000;
+
+// Threshold for determining that a pointer has stopped moving.
+// Some input devices do not send ACTION_MOVE events in the case where a pointer has
+// stopped.  We need to detect this case so that we can accurately predict the
+// velocity after the pointer starts moving again.
+static const nsecs_t ASSUME_POINTER_STOPPED_TIME = 40 * NANOS_PER_MS;
+
+
+static float vectorDot(const float* a, const float* b, uint32_t m) {
+    float r = 0;
+    while (m--) {
+        r += *(a++) * *(b++);
+    }
+    return r;
+}
+
+static float vectorNorm(const float* a, uint32_t m) {
+    float r = 0;
+    while (m--) {
+        float t = *(a++);
+        r += t * t;
+    }
+    return sqrtf(r);
+}
+
+#if DEBUG_STRATEGY || DEBUG_VELOCITY
+static String8 vectorToString(const float* a, uint32_t m) {
+    String8 str;
+    str.append("[");
+    while (m--) {
+        str.appendFormat(" %f", *(a++));
+        if (m) {
+            str.append(",");
+        }
+    }
+    str.append(" ]");
+    return str;
+}
+
+static String8 matrixToString(const float* a, uint32_t m, uint32_t n, bool rowMajor) {
+    String8 str;
+    str.append("[");
+    for (size_t i = 0; i < m; i++) {
+        if (i) {
+            str.append(",");
+        }
+        str.append(" [");
+        for (size_t j = 0; j < n; j++) {
+            if (j) {
+                str.append(",");
+            }
+            str.appendFormat(" %f", a[rowMajor ? i * n + j : j * m + i]);
+        }
+        str.append(" ]");
+    }
+    str.append(" ]");
+    return str;
+}
+#endif
+
+
+// --- VelocityTracker ---
+
+// The default velocity tracker strategy.
+// Although other strategies are available for testing and comparison purposes,
+// this is the strategy that applications will actually use.  Be very careful
+// when adjusting the default strategy because it can dramatically affect
+// (often in a bad way) the user experience.
+const char* VelocityTracker::DEFAULT_STRATEGY = "lsq2";
+
+VelocityTracker::VelocityTracker(const char* strategy) :
+        mLastEventTime(0), mCurrentPointerIdBits(0), mActivePointerId(-1) {
+    char value[PROPERTY_VALUE_MAX];
+
+    // Allow the default strategy to be overridden using a system property for debugging.
+    if (!strategy) {
+        int length = property_get("debug.velocitytracker.strategy", value, NULL);
+        if (length > 0) {
+            strategy = value;
+        } else {
+            strategy = DEFAULT_STRATEGY;
+        }
+    }
+
+    // Configure the strategy.
+    if (!configureStrategy(strategy)) {
+        ALOGD("Unrecognized velocity tracker strategy name '%s'.", strategy);
+        if (!configureStrategy(DEFAULT_STRATEGY)) {
+            LOG_ALWAYS_FATAL("Could not create the default velocity tracker strategy '%s'!",
+                    strategy);
+        }
+    }
+}
+
+VelocityTracker::~VelocityTracker() {
+    delete mStrategy;
+}
+
+bool VelocityTracker::configureStrategy(const char* strategy) {
+    mStrategy = createStrategy(strategy);
+    return mStrategy != NULL;
+}
+
+VelocityTrackerStrategy* VelocityTracker::createStrategy(const char* strategy) {
+    if (!strcmp("lsq1", strategy)) {
+        // 1st order least squares.  Quality: POOR.
+        // Frequently underfits the touch data especially when the finger accelerates
+        // or changes direction.  Often underestimates velocity.  The direction
+        // is overly influenced by historical touch points.
+        return new LeastSquaresVelocityTrackerStrategy(1);
+    }
+    if (!strcmp("lsq2", strategy)) {
+        // 2nd order least squares.  Quality: VERY GOOD.
+        // Pretty much ideal, but can be confused by certain kinds of touch data,
+        // particularly if the panel has a tendency to generate delayed,
+        // duplicate or jittery touch coordinates when the finger is released.
+        return new LeastSquaresVelocityTrackerStrategy(2);
+    }
+    if (!strcmp("lsq3", strategy)) {
+        // 3rd order least squares.  Quality: UNUSABLE.
+        // Frequently overfits the touch data yielding wildly divergent estimates
+        // of the velocity when the finger is released.
+        return new LeastSquaresVelocityTrackerStrategy(3);
+    }
+    if (!strcmp("wlsq2-delta", strategy)) {
+        // 2nd order weighted least squares, delta weighting.  Quality: EXPERIMENTAL
+        return new LeastSquaresVelocityTrackerStrategy(2,
+                LeastSquaresVelocityTrackerStrategy::WEIGHTING_DELTA);
+    }
+    if (!strcmp("wlsq2-central", strategy)) {
+        // 2nd order weighted least squares, central weighting.  Quality: EXPERIMENTAL
+        return new LeastSquaresVelocityTrackerStrategy(2,
+                LeastSquaresVelocityTrackerStrategy::WEIGHTING_CENTRAL);
+    }
+    if (!strcmp("wlsq2-recent", strategy)) {
+        // 2nd order weighted least squares, recent weighting.  Quality: EXPERIMENTAL
+        return new LeastSquaresVelocityTrackerStrategy(2,
+                LeastSquaresVelocityTrackerStrategy::WEIGHTING_RECENT);
+    }
+    if (!strcmp("int1", strategy)) {
+        // 1st order integrating filter.  Quality: GOOD.
+        // Not as good as 'lsq2' because it cannot estimate acceleration but it is
+        // more tolerant of errors.  Like 'lsq1', this strategy tends to underestimate
+        // the velocity of a fling but this strategy tends to respond to changes in
+        // direction more quickly and accurately.
+        return new IntegratingVelocityTrackerStrategy(1);
+    }
+    if (!strcmp("int2", strategy)) {
+        // 2nd order integrating filter.  Quality: EXPERIMENTAL.
+        // For comparison purposes only.  Unlike 'int1' this strategy can compensate
+        // for acceleration but it typically overestimates the effect.
+        return new IntegratingVelocityTrackerStrategy(2);
+    }
+    if (!strcmp("legacy", strategy)) {
+        // Legacy velocity tracker algorithm.  Quality: POOR.
+        // For comparison purposes only.  This algorithm is strongly influenced by
+        // old data points, consistently underestimates velocity and takes a very long
+        // time to adjust to changes in direction.
+        return new LegacyVelocityTrackerStrategy();
+    }
+    return NULL;
+}
+
+void VelocityTracker::clear() {
+    mCurrentPointerIdBits.clear();
+    mActivePointerId = -1;
+
+    mStrategy->clear();
+}
+
+void VelocityTracker::clearPointers(BitSet32 idBits) {
+    BitSet32 remainingIdBits(mCurrentPointerIdBits.value & ~idBits.value);
+    mCurrentPointerIdBits = remainingIdBits;
+
+    if (mActivePointerId >= 0 && idBits.hasBit(mActivePointerId)) {
+        mActivePointerId = !remainingIdBits.isEmpty() ? remainingIdBits.firstMarkedBit() : -1;
+    }
+
+    mStrategy->clearPointers(idBits);
+}
+
+void VelocityTracker::addMovement(nsecs_t eventTime, BitSet32 idBits, const Position* positions) {
+    while (idBits.count() > MAX_POINTERS) {
+        idBits.clearLastMarkedBit();
+    }
+
+    if ((mCurrentPointerIdBits.value & idBits.value)
+            && eventTime >= mLastEventTime + ASSUME_POINTER_STOPPED_TIME) {
+#if DEBUG_VELOCITY
+        ALOGD("VelocityTracker: stopped for %0.3f ms, clearing state.",
+                (eventTime - mLastEventTime) * 0.000001f);
+#endif
+        // We have not received any movements for too long.  Assume that all pointers
+        // have stopped.
+        mStrategy->clear();
+    }
+    mLastEventTime = eventTime;
+
+    mCurrentPointerIdBits = idBits;
+    if (mActivePointerId < 0 || !idBits.hasBit(mActivePointerId)) {
+        mActivePointerId = idBits.isEmpty() ? -1 : idBits.firstMarkedBit();
+    }
+
+    mStrategy->addMovement(eventTime, idBits, positions);
+
+#if DEBUG_VELOCITY
+    ALOGD("VelocityTracker: addMovement eventTime=%lld, idBits=0x%08x, activePointerId=%d",
+            eventTime, idBits.value, mActivePointerId);
+    for (BitSet32 iterBits(idBits); !iterBits.isEmpty(); ) {
+        uint32_t id = iterBits.firstMarkedBit();
+        uint32_t index = idBits.getIndexOfBit(id);
+        iterBits.clearBit(id);
+        Estimator estimator;
+        getEstimator(id, &estimator);
+        ALOGD("  %d: position (%0.3f, %0.3f), "
+                "estimator (degree=%d, xCoeff=%s, yCoeff=%s, confidence=%f)",
+                id, positions[index].x, positions[index].y,
+                int(estimator.degree),
+                vectorToString(estimator.xCoeff, estimator.degree + 1).string(),
+                vectorToString(estimator.yCoeff, estimator.degree + 1).string(),
+                estimator.confidence);
+    }
+#endif
+}
+
+void VelocityTracker::addMovement(const MotionEvent* event) {
+    int32_t actionMasked = event->getActionMasked();
+
+    switch (actionMasked) {
+    case AMOTION_EVENT_ACTION_DOWN:
+    case AMOTION_EVENT_ACTION_HOVER_ENTER:
+        // Clear all pointers on down before adding the new movement.
+        clear();
+        break;
+    case AMOTION_EVENT_ACTION_POINTER_DOWN: {
+        // Start a new movement trace for a pointer that just went down.
+        // We do this on down instead of on up because the client may want to query the
+        // final velocity for a pointer that just went up.
+        BitSet32 downIdBits;
+        downIdBits.markBit(event->getPointerId(event->getActionIndex()));
+        clearPointers(downIdBits);
+        break;
+    }
+    case AMOTION_EVENT_ACTION_MOVE:
+    case AMOTION_EVENT_ACTION_HOVER_MOVE:
+        break;
+    default:
+        // Ignore all other actions because they do not convey any new information about
+        // pointer movement.  We also want to preserve the last known velocity of the pointers.
+        // Note that ACTION_UP and ACTION_POINTER_UP always report the last known position
+        // of the pointers that went up.  ACTION_POINTER_UP does include the new position of
+        // pointers that remained down but we will also receive an ACTION_MOVE with this
+        // information if any of them actually moved.  Since we don't know how many pointers
+        // will be going up at once it makes sense to just wait for the following ACTION_MOVE
+        // before adding the movement.
+        return;
+    }
+
+    size_t pointerCount = event->getPointerCount();
+    if (pointerCount > MAX_POINTERS) {
+        pointerCount = MAX_POINTERS;
+    }
+
+    BitSet32 idBits;
+    for (size_t i = 0; i < pointerCount; i++) {
+        idBits.markBit(event->getPointerId(i));
+    }
+
+    uint32_t pointerIndex[MAX_POINTERS];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerIndex[i] = idBits.getIndexOfBit(event->getPointerId(i));
+    }
+
+    nsecs_t eventTime;
+    Position positions[pointerCount];
+
+    size_t historySize = event->getHistorySize();
+    for (size_t h = 0; h < historySize; h++) {
+        eventTime = event->getHistoricalEventTime(h);
+        for (size_t i = 0; i < pointerCount; i++) {
+            uint32_t index = pointerIndex[i];
+            positions[index].x = event->getHistoricalX(i, h);
+            positions[index].y = event->getHistoricalY(i, h);
+        }
+        addMovement(eventTime, idBits, positions);
+    }
+
+    eventTime = event->getEventTime();
+    for (size_t i = 0; i < pointerCount; i++) {
+        uint32_t index = pointerIndex[i];
+        positions[index].x = event->getX(i);
+        positions[index].y = event->getY(i);
+    }
+    addMovement(eventTime, idBits, positions);
+}
+
+bool VelocityTracker::getVelocity(uint32_t id, float* outVx, float* outVy) const {
+    Estimator estimator;
+    if (getEstimator(id, &estimator) && estimator.degree >= 1) {
+        *outVx = estimator.xCoeff[1];
+        *outVy = estimator.yCoeff[1];
+        return true;
+    }
+    *outVx = 0;
+    *outVy = 0;
+    return false;
+}
+
+bool VelocityTracker::getEstimator(uint32_t id, Estimator* outEstimator) const {
+    return mStrategy->getEstimator(id, outEstimator);
+}
+
+
+// --- LeastSquaresVelocityTrackerStrategy ---
+
+const nsecs_t LeastSquaresVelocityTrackerStrategy::HORIZON;
+const uint32_t LeastSquaresVelocityTrackerStrategy::HISTORY_SIZE;
+
+LeastSquaresVelocityTrackerStrategy::LeastSquaresVelocityTrackerStrategy(
+        uint32_t degree, Weighting weighting) :
+        mDegree(degree), mWeighting(weighting) {
+    clear();
+}
+
+LeastSquaresVelocityTrackerStrategy::~LeastSquaresVelocityTrackerStrategy() {
+}
+
+void LeastSquaresVelocityTrackerStrategy::clear() {
+    mIndex = 0;
+    mMovements[0].idBits.clear();
+}
+
+void LeastSquaresVelocityTrackerStrategy::clearPointers(BitSet32 idBits) {
+    BitSet32 remainingIdBits(mMovements[mIndex].idBits.value & ~idBits.value);
+    mMovements[mIndex].idBits = remainingIdBits;
+}
+
+void LeastSquaresVelocityTrackerStrategy::addMovement(nsecs_t eventTime, BitSet32 idBits,
+        const VelocityTracker::Position* positions) {
+    if (++mIndex == HISTORY_SIZE) {
+        mIndex = 0;
+    }
+
+    Movement& movement = mMovements[mIndex];
+    movement.eventTime = eventTime;
+    movement.idBits = idBits;
+    uint32_t count = idBits.count();
+    for (uint32_t i = 0; i < count; i++) {
+        movement.positions[i] = positions[i];
+    }
+}
+
+/**
+ * Solves a linear least squares problem to obtain a N degree polynomial that fits
+ * the specified input data as nearly as possible.
+ *
+ * Returns true if a solution is found, false otherwise.
+ *
+ * The input consists of two vectors of data points X and Y with indices 0..m-1
+ * along with a weight vector W of the same size.
+ *
+ * The output is a vector B with indices 0..n that describes a polynomial
+ * that fits the data, such the sum of W[i] * W[i] * abs(Y[i] - (B[0] + B[1] X[i]
+ * + B[2] X[i]^2 ... B[n] X[i]^n)) for all i between 0 and m-1 is minimized.
+ *
+ * Accordingly, the weight vector W should be initialized by the caller with the
+ * reciprocal square root of the variance of the error in each input data point.
+ * In other words, an ideal choice for W would be W[i] = 1 / var(Y[i]) = 1 / stddev(Y[i]).
+ * The weights express the relative importance of each data point.  If the weights are
+ * all 1, then the data points are considered to be of equal importance when fitting
+ * the polynomial.  It is a good idea to choose weights that diminish the importance
+ * of data points that may have higher than usual error margins.
+ *
+ * Errors among data points are assumed to be independent.  W is represented here
+ * as a vector although in the literature it is typically taken to be a diagonal matrix.
+ *
+ * That is to say, the function that generated the input data can be approximated
+ * by y(x) ~= B[0] + B[1] x + B[2] x^2 + ... + B[n] x^n.
+ *
+ * The coefficient of determination (R^2) is also returned to describe the goodness
+ * of fit of the model for the given data.  It is a value between 0 and 1, where 1
+ * indicates perfect correspondence.
+ *
+ * This function first expands the X vector to a m by n matrix A such that
+ * A[i][0] = 1, A[i][1] = X[i], A[i][2] = X[i]^2, ..., A[i][n] = X[i]^n, then
+ * multiplies it by w[i]./
+ *
+ * Then it calculates the QR decomposition of A yielding an m by m orthonormal matrix Q
+ * and an m by n upper triangular matrix R.  Because R is upper triangular (lower
+ * part is all zeroes), we can simplify the decomposition into an m by n matrix
+ * Q1 and a n by n matrix R1 such that A = Q1 R1.
+ *
+ * Finally we solve the system of linear equations given by R1 B = (Qtranspose W Y)
+ * to find B.
+ *
+ * For efficiency, we lay out A and Q column-wise in memory because we frequently
+ * operate on the column vectors.  Conversely, we lay out R row-wise.
+ *
+ * http://en.wikipedia.org/wiki/Numerical_methods_for_linear_least_squares
+ * http://en.wikipedia.org/wiki/Gram-Schmidt
+ */
+static bool solveLeastSquares(const float* x, const float* y,
+        const float* w, uint32_t m, uint32_t n, float* outB, float* outDet) {
+#if DEBUG_STRATEGY
+    ALOGD("solveLeastSquares: m=%d, n=%d, x=%s, y=%s, w=%s", int(m), int(n),
+            vectorToString(x, m).string(), vectorToString(y, m).string(),
+            vectorToString(w, m).string());
+#endif
+
+    // Expand the X vector to a matrix A, pre-multiplied by the weights.
+    float a[n][m]; // column-major order
+    for (uint32_t h = 0; h < m; h++) {
+        a[0][h] = w[h];
+        for (uint32_t i = 1; i < n; i++) {
+            a[i][h] = a[i - 1][h] * x[h];
+        }
+    }
+#if DEBUG_STRATEGY
+    ALOGD("  - a=%s", matrixToString(&a[0][0], m, n, false /*rowMajor*/).string());
+#endif
+
+    // Apply the Gram-Schmidt process to A to obtain its QR decomposition.
+    float q[n][m]; // orthonormal basis, column-major order
+    float r[n][n]; // upper triangular matrix, row-major order
+    for (uint32_t j = 0; j < n; j++) {
+        for (uint32_t h = 0; h < m; h++) {
+            q[j][h] = a[j][h];
+        }
+        for (uint32_t i = 0; i < j; i++) {
+            float dot = vectorDot(&q[j][0], &q[i][0], m);
+            for (uint32_t h = 0; h < m; h++) {
+                q[j][h] -= dot * q[i][h];
+            }
+        }
+
+        float norm = vectorNorm(&q[j][0], m);
+        if (norm < 0.000001f) {
+            // vectors are linearly dependent or zero so no solution
+#if DEBUG_STRATEGY
+            ALOGD("  - no solution, norm=%f", norm);
+#endif
+            return false;
+        }
+
+        float invNorm = 1.0f / norm;
+        for (uint32_t h = 0; h < m; h++) {
+            q[j][h] *= invNorm;
+        }
+        for (uint32_t i = 0; i < n; i++) {
+            r[j][i] = i < j ? 0 : vectorDot(&q[j][0], &a[i][0], m);
+        }
+    }
+#if DEBUG_STRATEGY
+    ALOGD("  - q=%s", matrixToString(&q[0][0], m, n, false /*rowMajor*/).string());
+    ALOGD("  - r=%s", matrixToString(&r[0][0], n, n, true /*rowMajor*/).string());
+
+    // calculate QR, if we factored A correctly then QR should equal A
+    float qr[n][m];
+    for (uint32_t h = 0; h < m; h++) {
+        for (uint32_t i = 0; i < n; i++) {
+            qr[i][h] = 0;
+            for (uint32_t j = 0; j < n; j++) {
+                qr[i][h] += q[j][h] * r[j][i];
+            }
+        }
+    }
+    ALOGD("  - qr=%s", matrixToString(&qr[0][0], m, n, false /*rowMajor*/).string());
+#endif
+
+    // Solve R B = Qt W Y to find B.  This is easy because R is upper triangular.
+    // We just work from bottom-right to top-left calculating B's coefficients.
+    float wy[m];
+    for (uint32_t h = 0; h < m; h++) {
+        wy[h] = y[h] * w[h];
+    }
+    for (uint32_t i = n; i-- != 0; ) {
+        outB[i] = vectorDot(&q[i][0], wy, m);
+        for (uint32_t j = n - 1; j > i; j--) {
+            outB[i] -= r[i][j] * outB[j];
+        }
+        outB[i] /= r[i][i];
+    }
+#if DEBUG_STRATEGY
+    ALOGD("  - b=%s", vectorToString(outB, n).string());
+#endif
+
+    // Calculate the coefficient of determination as 1 - (SSerr / SStot) where
+    // SSerr is the residual sum of squares (variance of the error),
+    // and SStot is the total sum of squares (variance of the data) where each
+    // has been weighted.
+    float ymean = 0;
+    for (uint32_t h = 0; h < m; h++) {
+        ymean += y[h];
+    }
+    ymean /= m;
+
+    float sserr = 0;
+    float sstot = 0;
+    for (uint32_t h = 0; h < m; h++) {
+        float err = y[h] - outB[0];
+        float term = 1;
+        for (uint32_t i = 1; i < n; i++) {
+            term *= x[h];
+            err -= term * outB[i];
+        }
+        sserr += w[h] * w[h] * err * err;
+        float var = y[h] - ymean;
+        sstot += w[h] * w[h] * var * var;
+    }
+    *outDet = sstot > 0.000001f ? 1.0f - (sserr / sstot) : 1;
+#if DEBUG_STRATEGY
+    ALOGD("  - sserr=%f", sserr);
+    ALOGD("  - sstot=%f", sstot);
+    ALOGD("  - det=%f", *outDet);
+#endif
+    return true;
+}
+
+bool LeastSquaresVelocityTrackerStrategy::getEstimator(uint32_t id,
+        VelocityTracker::Estimator* outEstimator) const {
+    outEstimator->clear();
+
+    // Iterate over movement samples in reverse time order and collect samples.
+    float x[HISTORY_SIZE];
+    float y[HISTORY_SIZE];
+    float w[HISTORY_SIZE];
+    float time[HISTORY_SIZE];
+    uint32_t m = 0;
+    uint32_t index = mIndex;
+    const Movement& newestMovement = mMovements[mIndex];
+    do {
+        const Movement& movement = mMovements[index];
+        if (!movement.idBits.hasBit(id)) {
+            break;
+        }
+
+        nsecs_t age = newestMovement.eventTime - movement.eventTime;
+        if (age > HORIZON) {
+            break;
+        }
+
+        const VelocityTracker::Position& position = movement.getPosition(id);
+        x[m] = position.x;
+        y[m] = position.y;
+        w[m] = chooseWeight(index);
+        time[m] = -age * 0.000000001f;
+        index = (index == 0 ? HISTORY_SIZE : index) - 1;
+    } while (++m < HISTORY_SIZE);
+
+    if (m == 0) {
+        return false; // no data
+    }
+
+    // Calculate a least squares polynomial fit.
+    uint32_t degree = mDegree;
+    if (degree > m - 1) {
+        degree = m - 1;
+    }
+    if (degree >= 1) {
+        float xdet, ydet;
+        uint32_t n = degree + 1;
+        if (solveLeastSquares(time, x, w, m, n, outEstimator->xCoeff, &xdet)
+                && solveLeastSquares(time, y, w, m, n, outEstimator->yCoeff, &ydet)) {
+            outEstimator->time = newestMovement.eventTime;
+            outEstimator->degree = degree;
+            outEstimator->confidence = xdet * ydet;
+#if DEBUG_STRATEGY
+            ALOGD("estimate: degree=%d, xCoeff=%s, yCoeff=%s, confidence=%f",
+                    int(outEstimator->degree),
+                    vectorToString(outEstimator->xCoeff, n).string(),
+                    vectorToString(outEstimator->yCoeff, n).string(),
+                    outEstimator->confidence);
+#endif
+            return true;
+        }
+    }
+
+    // No velocity data available for this pointer, but we do have its current position.
+    outEstimator->xCoeff[0] = x[0];
+    outEstimator->yCoeff[0] = y[0];
+    outEstimator->time = newestMovement.eventTime;
+    outEstimator->degree = 0;
+    outEstimator->confidence = 1;
+    return true;
+}
+
+float LeastSquaresVelocityTrackerStrategy::chooseWeight(uint32_t index) const {
+    switch (mWeighting) {
+    case WEIGHTING_DELTA: {
+        // Weight points based on how much time elapsed between them and the next
+        // point so that points that "cover" a shorter time span are weighed less.
+        //   delta  0ms: 0.5
+        //   delta 10ms: 1.0
+        if (index == mIndex) {
+            return 1.0f;
+        }
+        uint32_t nextIndex = (index + 1) % HISTORY_SIZE;
+        float deltaMillis = (mMovements[nextIndex].eventTime- mMovements[index].eventTime)
+                * 0.000001f;
+        if (deltaMillis < 0) {
+            return 0.5f;
+        }
+        if (deltaMillis < 10) {
+            return 0.5f + deltaMillis * 0.05;
+        }
+        return 1.0f;
+    }
+
+    case WEIGHTING_CENTRAL: {
+        // Weight points based on their age, weighing very recent and very old points less.
+        //   age  0ms: 0.5
+        //   age 10ms: 1.0
+        //   age 50ms: 1.0
+        //   age 60ms: 0.5
+        float ageMillis = (mMovements[mIndex].eventTime - mMovements[index].eventTime)
+                * 0.000001f;
+        if (ageMillis < 0) {
+            return 0.5f;
+        }
+        if (ageMillis < 10) {
+            return 0.5f + ageMillis * 0.05;
+        }
+        if (ageMillis < 50) {
+            return 1.0f;
+        }
+        if (ageMillis < 60) {
+            return 0.5f + (60 - ageMillis) * 0.05;
+        }
+        return 0.5f;
+    }
+
+    case WEIGHTING_RECENT: {
+        // Weight points based on their age, weighing older points less.
+        //   age   0ms: 1.0
+        //   age  50ms: 1.0
+        //   age 100ms: 0.5
+        float ageMillis = (mMovements[mIndex].eventTime - mMovements[index].eventTime)
+                * 0.000001f;
+        if (ageMillis < 50) {
+            return 1.0f;
+        }
+        if (ageMillis < 100) {
+            return 0.5f + (100 - ageMillis) * 0.01f;
+        }
+        return 0.5f;
+    }
+
+    case WEIGHTING_NONE:
+    default:
+        return 1.0f;
+    }
+}
+
+
+// --- IntegratingVelocityTrackerStrategy ---
+
+IntegratingVelocityTrackerStrategy::IntegratingVelocityTrackerStrategy(uint32_t degree) :
+        mDegree(degree) {
+}
+
+IntegratingVelocityTrackerStrategy::~IntegratingVelocityTrackerStrategy() {
+}
+
+void IntegratingVelocityTrackerStrategy::clear() {
+    mPointerIdBits.clear();
+}
+
+void IntegratingVelocityTrackerStrategy::clearPointers(BitSet32 idBits) {
+    mPointerIdBits.value &= ~idBits.value;
+}
+
+void IntegratingVelocityTrackerStrategy::addMovement(nsecs_t eventTime, BitSet32 idBits,
+        const VelocityTracker::Position* positions) {
+    uint32_t index = 0;
+    for (BitSet32 iterIdBits(idBits); !iterIdBits.isEmpty();) {
+        uint32_t id = iterIdBits.clearFirstMarkedBit();
+        State& state = mPointerState[id];
+        const VelocityTracker::Position& position = positions[index++];
+        if (mPointerIdBits.hasBit(id)) {
+            updateState(state, eventTime, position.x, position.y);
+        } else {
+            initState(state, eventTime, position.x, position.y);
+        }
+    }
+
+    mPointerIdBits = idBits;
+}
+
+bool IntegratingVelocityTrackerStrategy::getEstimator(uint32_t id,
+        VelocityTracker::Estimator* outEstimator) const {
+    outEstimator->clear();
+
+    if (mPointerIdBits.hasBit(id)) {
+        const State& state = mPointerState[id];
+        populateEstimator(state, outEstimator);
+        return true;
+    }
+
+    return false;
+}
+
+void IntegratingVelocityTrackerStrategy::initState(State& state,
+        nsecs_t eventTime, float xpos, float ypos) const {
+    state.updateTime = eventTime;
+    state.degree = 0;
+
+    state.xpos = xpos;
+    state.xvel = 0;
+    state.xaccel = 0;
+    state.ypos = ypos;
+    state.yvel = 0;
+    state.yaccel = 0;
+}
+
+void IntegratingVelocityTrackerStrategy::updateState(State& state,
+        nsecs_t eventTime, float xpos, float ypos) const {
+    const nsecs_t MIN_TIME_DELTA = 2 * NANOS_PER_MS;
+    const float FILTER_TIME_CONSTANT = 0.010f; // 10 milliseconds
+
+    if (eventTime <= state.updateTime + MIN_TIME_DELTA) {
+        return;
+    }
+
+    float dt = (eventTime - state.updateTime) * 0.000000001f;
+    state.updateTime = eventTime;
+
+    float xvel = (xpos - state.xpos) / dt;
+    float yvel = (ypos - state.ypos) / dt;
+    if (state.degree == 0) {
+        state.xvel = xvel;
+        state.yvel = yvel;
+        state.degree = 1;
+    } else {
+        float alpha = dt / (FILTER_TIME_CONSTANT + dt);
+        if (mDegree == 1) {
+            state.xvel += (xvel - state.xvel) * alpha;
+            state.yvel += (yvel - state.yvel) * alpha;
+        } else {
+            float xaccel = (xvel - state.xvel) / dt;
+            float yaccel = (yvel - state.yvel) / dt;
+            if (state.degree == 1) {
+                state.xaccel = xaccel;
+                state.yaccel = yaccel;
+                state.degree = 2;
+            } else {
+                state.xaccel += (xaccel - state.xaccel) * alpha;
+                state.yaccel += (yaccel - state.yaccel) * alpha;
+            }
+            state.xvel += (state.xaccel * dt) * alpha;
+            state.yvel += (state.yaccel * dt) * alpha;
+        }
+    }
+    state.xpos = xpos;
+    state.ypos = ypos;
+}
+
+void IntegratingVelocityTrackerStrategy::populateEstimator(const State& state,
+        VelocityTracker::Estimator* outEstimator) const {
+    outEstimator->time = state.updateTime;
+    outEstimator->confidence = 1.0f;
+    outEstimator->degree = state.degree;
+    outEstimator->xCoeff[0] = state.xpos;
+    outEstimator->xCoeff[1] = state.xvel;
+    outEstimator->xCoeff[2] = state.xaccel / 2;
+    outEstimator->yCoeff[0] = state.ypos;
+    outEstimator->yCoeff[1] = state.yvel;
+    outEstimator->yCoeff[2] = state.yaccel / 2;
+}
+
+
+// --- LegacyVelocityTrackerStrategy ---
+
+const nsecs_t LegacyVelocityTrackerStrategy::HORIZON;
+const uint32_t LegacyVelocityTrackerStrategy::HISTORY_SIZE;
+const nsecs_t LegacyVelocityTrackerStrategy::MIN_DURATION;
+
+LegacyVelocityTrackerStrategy::LegacyVelocityTrackerStrategy() {
+    clear();
+}
+
+LegacyVelocityTrackerStrategy::~LegacyVelocityTrackerStrategy() {
+}
+
+void LegacyVelocityTrackerStrategy::clear() {
+    mIndex = 0;
+    mMovements[0].idBits.clear();
+}
+
+void LegacyVelocityTrackerStrategy::clearPointers(BitSet32 idBits) {
+    BitSet32 remainingIdBits(mMovements[mIndex].idBits.value & ~idBits.value);
+    mMovements[mIndex].idBits = remainingIdBits;
+}
+
+void LegacyVelocityTrackerStrategy::addMovement(nsecs_t eventTime, BitSet32 idBits,
+        const VelocityTracker::Position* positions) {
+    if (++mIndex == HISTORY_SIZE) {
+        mIndex = 0;
+    }
+
+    Movement& movement = mMovements[mIndex];
+    movement.eventTime = eventTime;
+    movement.idBits = idBits;
+    uint32_t count = idBits.count();
+    for (uint32_t i = 0; i < count; i++) {
+        movement.positions[i] = positions[i];
+    }
+}
+
+bool LegacyVelocityTrackerStrategy::getEstimator(uint32_t id,
+        VelocityTracker::Estimator* outEstimator) const {
+    outEstimator->clear();
+
+    const Movement& newestMovement = mMovements[mIndex];
+    if (!newestMovement.idBits.hasBit(id)) {
+        return false; // no data
+    }
+
+    // Find the oldest sample that contains the pointer and that is not older than HORIZON.
+    nsecs_t minTime = newestMovement.eventTime - HORIZON;
+    uint32_t oldestIndex = mIndex;
+    uint32_t numTouches = 1;
+    do {
+        uint32_t nextOldestIndex = (oldestIndex == 0 ? HISTORY_SIZE : oldestIndex) - 1;
+        const Movement& nextOldestMovement = mMovements[nextOldestIndex];
+        if (!nextOldestMovement.idBits.hasBit(id)
+                || nextOldestMovement.eventTime < minTime) {
+            break;
+        }
+        oldestIndex = nextOldestIndex;
+    } while (++numTouches < HISTORY_SIZE);
+
+    // Calculate an exponentially weighted moving average of the velocity estimate
+    // at different points in time measured relative to the oldest sample.
+    // This is essentially an IIR filter.  Newer samples are weighted more heavily
+    // than older samples.  Samples at equal time points are weighted more or less
+    // equally.
+    //
+    // One tricky problem is that the sample data may be poorly conditioned.
+    // Sometimes samples arrive very close together in time which can cause us to
+    // overestimate the velocity at that time point.  Most samples might be measured
+    // 16ms apart but some consecutive samples could be only 0.5sm apart because
+    // the hardware or driver reports them irregularly or in bursts.
+    float accumVx = 0;
+    float accumVy = 0;
+    uint32_t index = oldestIndex;
+    uint32_t samplesUsed = 0;
+    const Movement& oldestMovement = mMovements[oldestIndex];
+    const VelocityTracker::Position& oldestPosition = oldestMovement.getPosition(id);
+    nsecs_t lastDuration = 0;
+
+    while (numTouches-- > 1) {
+        if (++index == HISTORY_SIZE) {
+            index = 0;
+        }
+        const Movement& movement = mMovements[index];
+        nsecs_t duration = movement.eventTime - oldestMovement.eventTime;
+
+        // If the duration between samples is small, we may significantly overestimate
+        // the velocity.  Consequently, we impose a minimum duration constraint on the
+        // samples that we include in the calculation.
+        if (duration >= MIN_DURATION) {
+            const VelocityTracker::Position& position = movement.getPosition(id);
+            float scale = 1000000000.0f / duration; // one over time delta in seconds
+            float vx = (position.x - oldestPosition.x) * scale;
+            float vy = (position.y - oldestPosition.y) * scale;
+            accumVx = (accumVx * lastDuration + vx * duration) / (duration + lastDuration);
+            accumVy = (accumVy * lastDuration + vy * duration) / (duration + lastDuration);
+            lastDuration = duration;
+            samplesUsed += 1;
+        }
+    }
+
+    // Report velocity.
+    const VelocityTracker::Position& newestPosition = newestMovement.getPosition(id);
+    outEstimator->time = newestMovement.eventTime;
+    outEstimator->confidence = 1;
+    outEstimator->xCoeff[0] = newestPosition.x;
+    outEstimator->yCoeff[0] = newestPosition.y;
+    if (samplesUsed) {
+        outEstimator->xCoeff[1] = accumVx;
+        outEstimator->yCoeff[1] = accumVy;
+        outEstimator->degree = 1;
+    } else {
+        outEstimator->degree = 0;
+    }
+    return true;
+}
+
+} // namespace android
diff --git a/libs/input/VirtualKeyMap.cpp b/libs/input/VirtualKeyMap.cpp
new file mode 100644
index 0000000..28ea717
--- /dev/null
+++ b/libs/input/VirtualKeyMap.cpp
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VirtualKeyMap"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <input/VirtualKeyMap.h>
+#include <utils/Log.h>
+#include <utils/Errors.h>
+#include <utils/Tokenizer.h>
+#include <utils/Timers.h>
+
+// Enables debug output for the parser.
+#define DEBUG_PARSER 0
+
+// Enables debug output for parser performance.
+#define DEBUG_PARSER_PERFORMANCE 0
+
+
+namespace android {
+
+static const char* WHITESPACE = " \t\r";
+static const char* WHITESPACE_OR_FIELD_DELIMITER = " \t\r:";
+
+
+// --- VirtualKeyMap ---
+
+VirtualKeyMap::VirtualKeyMap() {
+}
+
+VirtualKeyMap::~VirtualKeyMap() {
+}
+
+status_t VirtualKeyMap::load(const String8& filename, VirtualKeyMap** outMap) {
+    *outMap = NULL;
+
+    Tokenizer* tokenizer;
+    status_t status = Tokenizer::open(filename, &tokenizer);
+    if (status) {
+        ALOGE("Error %d opening virtual key map file %s.", status, filename.string());
+    } else {
+        VirtualKeyMap* map = new VirtualKeyMap();
+        if (!map) {
+            ALOGE("Error allocating virtual key map.");
+            status = NO_MEMORY;
+        } else {
+#if DEBUG_PARSER_PERFORMANCE
+            nsecs_t startTime = systemTime(SYSTEM_TIME_MONOTONIC);
+#endif
+            Parser parser(map, tokenizer);
+            status = parser.parse();
+#if DEBUG_PARSER_PERFORMANCE
+            nsecs_t elapsedTime = systemTime(SYSTEM_TIME_MONOTONIC) - startTime;
+            ALOGD("Parsed key character map file '%s' %d lines in %0.3fms.",
+                    tokenizer->getFilename().string(), tokenizer->getLineNumber(),
+                    elapsedTime / 1000000.0);
+#endif
+            if (status) {
+                delete map;
+            } else {
+                *outMap = map;
+            }
+        }
+        delete tokenizer;
+    }
+    return status;
+}
+
+
+// --- VirtualKeyMap::Parser ---
+
+VirtualKeyMap::Parser::Parser(VirtualKeyMap* map, Tokenizer* tokenizer) :
+        mMap(map), mTokenizer(tokenizer) {
+}
+
+VirtualKeyMap::Parser::~Parser() {
+}
+
+status_t VirtualKeyMap::Parser::parse() {
+    while (!mTokenizer->isEof()) {
+#if DEBUG_PARSER
+        ALOGD("Parsing %s: '%s'.", mTokenizer->getLocation().string(),
+                mTokenizer->peekRemainderOfLine().string());
+#endif
+
+        mTokenizer->skipDelimiters(WHITESPACE);
+
+        if (!mTokenizer->isEol() && mTokenizer->peekChar() != '#') {
+            // Multiple keys can appear on one line or they can be broken up across multiple lines.
+            do {
+                String8 token = mTokenizer->nextToken(WHITESPACE_OR_FIELD_DELIMITER);
+                if (token != "0x01") {
+                    ALOGE("%s: Unknown virtual key type, expected 0x01.",
+                          mTokenizer->getLocation().string());
+                    return BAD_VALUE;
+                }
+
+                VirtualKeyDefinition defn;
+                bool success = parseNextIntField(&defn.scanCode)
+                        && parseNextIntField(&defn.centerX)
+                        && parseNextIntField(&defn.centerY)
+                        && parseNextIntField(&defn.width)
+                        && parseNextIntField(&defn.height);
+                if (!success) {
+                    ALOGE("%s: Expected 5 colon-delimited integers in virtual key definition.",
+                          mTokenizer->getLocation().string());
+                    return BAD_VALUE;
+                }
+
+#if DEBUG_PARSER
+                ALOGD("Parsed virtual key: scanCode=%d, centerX=%d, centerY=%d, "
+                        "width=%d, height=%d",
+                        defn.scanCode, defn.centerX, defn.centerY, defn.width, defn.height);
+#endif
+                mMap->mVirtualKeys.push(defn);
+            } while (consumeFieldDelimiterAndSkipWhitespace());
+
+            if (!mTokenizer->isEol()) {
+                ALOGE("%s: Expected end of line, got '%s'.",
+                        mTokenizer->getLocation().string(),
+                        mTokenizer->peekRemainderOfLine().string());
+                return BAD_VALUE;
+            }
+        }
+
+        mTokenizer->nextLine();
+    }
+
+    return NO_ERROR;
+}
+
+bool VirtualKeyMap::Parser::consumeFieldDelimiterAndSkipWhitespace() {
+    mTokenizer->skipDelimiters(WHITESPACE);
+    if (mTokenizer->peekChar() == ':') {
+        mTokenizer->nextChar();
+        mTokenizer->skipDelimiters(WHITESPACE);
+        return true;
+    }
+    return false;
+}
+
+bool VirtualKeyMap::Parser::parseNextIntField(int32_t* outValue) {
+    if (!consumeFieldDelimiterAndSkipWhitespace()) {
+        return false;
+    }
+
+    String8 token = mTokenizer->nextToken(WHITESPACE_OR_FIELD_DELIMITER);
+    char* end;
+    *outValue = strtol(token.string(), &end, 0);
+    if (token.isEmpty() || *end != '\0') {
+        ALOGE("Expected an integer, got '%s'.", token.string());
+        return false;
+    }
+    return true;
+}
+
+} // namespace android
diff --git a/libs/input/tests/Android.mk b/libs/input/tests/Android.mk
new file mode 100644
index 0000000..c62dff1
--- /dev/null
+++ b/libs/input/tests/Android.mk
@@ -0,0 +1,33 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+# Build the unit tests.
+test_src_files := \
+    InputChannel_test.cpp \
+    InputEvent_test.cpp \
+    InputPublisherAndConsumer_test.cpp
+
+shared_libraries := \
+    libinput \
+    libcutils \
+    libutils \
+    libbinder \
+    libui \
+    libstlport
+
+static_libraries := \
+    libgtest \
+    libgtest_main
+
+$(foreach file,$(test_src_files), \
+    $(eval include $(CLEAR_VARS)) \
+    $(eval LOCAL_SHARED_LIBRARIES := $(shared_libraries)) \
+    $(eval LOCAL_STATIC_LIBRARIES := $(static_libraries)) \
+    $(eval LOCAL_SRC_FILES := $(file)) \
+    $(eval LOCAL_MODULE := $(notdir $(file:%.cpp=%))) \
+    $(eval include $(BUILD_NATIVE_TEST)) \
+)
+
+# Build the manual test programs.
+include $(call all-makefiles-under, $(LOCAL_PATH))
diff --git a/libs/input/tests/InputChannel_test.cpp b/libs/input/tests/InputChannel_test.cpp
new file mode 100644
index 0000000..e71ebe2
--- /dev/null
+++ b/libs/input/tests/InputChannel_test.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TestHelpers.h"
+
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+
+#include <gtest/gtest.h>
+#include <input/InputTransport.h>
+#include <utils/Timers.h>
+#include <utils/StopWatch.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+class InputChannelTest : public testing::Test {
+protected:
+    virtual void SetUp() { }
+    virtual void TearDown() { }
+};
+
+
+TEST_F(InputChannelTest, ConstructorAndDestructor_TakesOwnershipOfFileDescriptors) {
+    // Our purpose here is to verify that the input channel destructor closes the
+    // file descriptor provided to it.  One easy way is to provide it with one end
+    // of a pipe and to check for EPIPE on the other end after the channel is destroyed.
+    Pipe pipe;
+
+    sp<InputChannel> inputChannel = new InputChannel(String8("channel name"), pipe.sendFd);
+
+    EXPECT_STREQ("channel name", inputChannel->getName().string())
+            << "channel should have provided name";
+    EXPECT_EQ(pipe.sendFd, inputChannel->getFd())
+            << "channel should have provided fd";
+
+    inputChannel.clear(); // destroys input channel
+
+    EXPECT_EQ(-EPIPE, pipe.readSignal())
+            << "channel should have closed fd when destroyed";
+
+    // clean up fds of Pipe endpoints that were closed so we don't try to close them again
+    pipe.sendFd = -1;
+}
+
+TEST_F(InputChannelTest, OpenInputChannelPair_ReturnsAPairOfConnectedChannels) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result = InputChannel::openInputChannelPair(String8("channel name"),
+            serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result)
+            << "should have successfully opened a channel pair";
+
+    // Name
+    EXPECT_STREQ("channel name (server)", serverChannel->getName().string())
+            << "server channel should have suffixed name";
+    EXPECT_STREQ("channel name (client)", clientChannel->getName().string())
+            << "client channel should have suffixed name";
+
+    // Server->Client communication
+    InputMessage serverMsg;
+    memset(&serverMsg, 0, sizeof(InputMessage));
+    serverMsg.header.type = InputMessage::TYPE_KEY;
+    serverMsg.body.key.action = AKEY_EVENT_ACTION_DOWN;
+    EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
+            << "server channel should be able to send message to client channel";
+
+    InputMessage clientMsg;
+    EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
+            << "client channel should be able to receive message from server channel";
+    EXPECT_EQ(serverMsg.header.type, clientMsg.header.type)
+            << "client channel should receive the correct message from server channel";
+    EXPECT_EQ(serverMsg.body.key.action, clientMsg.body.key.action)
+            << "client channel should receive the correct message from server channel";
+
+    // Client->Server communication
+    InputMessage clientReply;
+    memset(&clientReply, 0, sizeof(InputMessage));
+    clientReply.header.type = InputMessage::TYPE_FINISHED;
+    clientReply.body.finished.seq = 0x11223344;
+    clientReply.body.finished.handled = true;
+    EXPECT_EQ(OK, clientChannel->sendMessage(&clientReply))
+            << "client channel should be able to send message to server channel";
+
+    InputMessage serverReply;
+    EXPECT_EQ(OK, serverChannel->receiveMessage(&serverReply))
+            << "server channel should be able to receive message from client channel";
+    EXPECT_EQ(clientReply.header.type, serverReply.header.type)
+            << "server channel should receive the correct message from client channel";
+    EXPECT_EQ(clientReply.body.finished.seq, serverReply.body.finished.seq)
+            << "server channel should receive the correct message from client channel";
+    EXPECT_EQ(clientReply.body.finished.handled, serverReply.body.finished.handled)
+            << "server channel should receive the correct message from client channel";
+}
+
+TEST_F(InputChannelTest, ReceiveSignal_WhenNoSignalPresent_ReturnsAnError) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result = InputChannel::openInputChannelPair(String8("channel name"),
+            serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result)
+            << "should have successfully opened a channel pair";
+
+    InputMessage msg;
+    EXPECT_EQ(WOULD_BLOCK, clientChannel->receiveMessage(&msg))
+            << "receiveMessage should have returned WOULD_BLOCK";
+}
+
+TEST_F(InputChannelTest, ReceiveSignal_WhenPeerClosed_ReturnsAnError) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result = InputChannel::openInputChannelPair(String8("channel name"),
+            serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result)
+            << "should have successfully opened a channel pair";
+
+    serverChannel.clear(); // close server channel
+
+    InputMessage msg;
+    EXPECT_EQ(DEAD_OBJECT, clientChannel->receiveMessage(&msg))
+            << "receiveMessage should have returned DEAD_OBJECT";
+}
+
+TEST_F(InputChannelTest, SendSignal_WhenPeerClosed_ReturnsAnError) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result = InputChannel::openInputChannelPair(String8("channel name"),
+            serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result)
+            << "should have successfully opened a channel pair";
+
+    serverChannel.clear(); // close server channel
+
+    InputMessage msg;
+    msg.header.type = InputMessage::TYPE_KEY;
+    EXPECT_EQ(DEAD_OBJECT, clientChannel->sendMessage(&msg))
+            << "sendMessage should have returned DEAD_OBJECT";
+}
+
+
+} // namespace android
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
new file mode 100644
index 0000000..78ea98e
--- /dev/null
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -0,0 +1,594 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <math.h>
+
+#include <binder/Parcel.h>
+#include <gtest/gtest.h>
+#include <input/Input.h>
+
+namespace android {
+
+class BaseTest : public testing::Test {
+protected:
+    virtual void SetUp() { }
+    virtual void TearDown() { }
+};
+
+// --- PointerCoordsTest ---
+
+class PointerCoordsTest : public BaseTest {
+};
+
+TEST_F(PointerCoordsTest, ClearSetsBitsToZero) {
+    PointerCoords coords;
+    coords.clear();
+
+    ASSERT_EQ(0ULL, coords.bits);
+}
+
+TEST_F(PointerCoordsTest, AxisValues) {
+    float* valuePtr;
+    PointerCoords coords;
+    coords.clear();
+
+    // Check invariants when no axes are present.
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(0, coords.getAxisValue(1))
+            << "getAxisValue should return zero because axis is not present";
+
+    // Set first axis.
+    ASSERT_EQ(OK, coords.setAxisValue(1, 5));
+    ASSERT_EQ(0x00000002ULL, coords.bits);
+    ASSERT_EQ(5, coords.values[0]);
+
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with a higher id than all others.  (appending value at the end)
+    ASSERT_EQ(OK, coords.setAxisValue(3, 2));
+    ASSERT_EQ(0x0000000aULL, coords.bits);
+    ASSERT_EQ(5, coords.values[0]);
+    ASSERT_EQ(2, coords.values[1]);
+
+    ASSERT_EQ(0, coords.getAxisValue(0))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(0, coords.getAxisValue(2))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with an id lower than all others.  (prepending value at beginning)
+    ASSERT_EQ(OK, coords.setAxisValue(0, 4));
+    ASSERT_EQ(0x0000000bULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(5, coords.values[1]);
+    ASSERT_EQ(2, coords.values[2]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(0, coords.getAxisValue(2))
+            << "getAxisValue should return zero because axis is not present";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set an axis with an id between the others.  (inserting value in the middle)
+    ASSERT_EQ(OK, coords.setAxisValue(2, 1));
+    ASSERT_EQ(0x0000000fULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(5, coords.values[1]);
+    ASSERT_EQ(1, coords.values[2]);
+    ASSERT_EQ(2, coords.values[3]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(5, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(1, coords.getAxisValue(2))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set an existing axis value in place.
+    ASSERT_EQ(OK, coords.setAxisValue(1, 6));
+    ASSERT_EQ(0x0000000fULL, coords.bits);
+    ASSERT_EQ(4, coords.values[0]);
+    ASSERT_EQ(6, coords.values[1]);
+    ASSERT_EQ(1, coords.values[2]);
+    ASSERT_EQ(2, coords.values[3]);
+
+    ASSERT_EQ(4, coords.getAxisValue(0))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(6, coords.getAxisValue(1))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(1, coords.getAxisValue(2))
+            << "getAxisValue should return value of axis";
+    ASSERT_EQ(2, coords.getAxisValue(3))
+            << "getAxisValue should return value of axis";
+
+    // Set maximum number of axes.
+    for (size_t axis = 4; axis < PointerCoords::MAX_AXES; axis++) {
+        ASSERT_EQ(OK, coords.setAxisValue(axis, axis));
+    }
+    ASSERT_EQ(PointerCoords::MAX_AXES, __builtin_popcountll(coords.bits));
+
+    // Try to set one more axis beyond maximum number.
+    // Ensure bits are unchanged.
+    ASSERT_EQ(NO_MEMORY, coords.setAxisValue(PointerCoords::MAX_AXES, 100));
+    ASSERT_EQ(PointerCoords::MAX_AXES, __builtin_popcountll(coords.bits));
+}
+
+TEST_F(PointerCoordsTest, Parcel) {
+    Parcel parcel;
+
+    PointerCoords inCoords;
+    inCoords.clear();
+    PointerCoords outCoords;
+
+    // Round trip with empty coords.
+    inCoords.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outCoords.readFromParcel(&parcel);
+
+    ASSERT_EQ(0ULL, outCoords.bits);
+
+    // Round trip with some values.
+    parcel.freeData();
+    inCoords.setAxisValue(2, 5);
+    inCoords.setAxisValue(5, 8);
+
+    inCoords.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outCoords.readFromParcel(&parcel);
+
+    ASSERT_EQ(outCoords.bits, inCoords.bits);
+    ASSERT_EQ(outCoords.values[0], inCoords.values[0]);
+    ASSERT_EQ(outCoords.values[1], inCoords.values[1]);
+}
+
+
+// --- KeyEventTest ---
+
+class KeyEventTest : public BaseTest {
+};
+
+TEST_F(KeyEventTest, Properties) {
+    KeyEvent event;
+
+    // Initialize and get properties.
+    const nsecs_t ARBITRARY_DOWN_TIME = 1;
+    const nsecs_t ARBITRARY_EVENT_TIME = 2;
+    event.initialize(2, AINPUT_SOURCE_GAMEPAD, AKEY_EVENT_ACTION_DOWN,
+            AKEY_EVENT_FLAG_FROM_SYSTEM, AKEYCODE_BUTTON_X, 121,
+            AMETA_ALT_ON, 1, ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME);
+
+    ASSERT_EQ(AINPUT_EVENT_TYPE_KEY, event.getType());
+    ASSERT_EQ(2, event.getDeviceId());
+    ASSERT_EQ(AINPUT_SOURCE_GAMEPAD, event.getSource());
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, event.getAction());
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, event.getFlags());
+    ASSERT_EQ(AKEYCODE_BUTTON_X, event.getKeyCode());
+    ASSERT_EQ(121, event.getScanCode());
+    ASSERT_EQ(AMETA_ALT_ON, event.getMetaState());
+    ASSERT_EQ(1, event.getRepeatCount());
+    ASSERT_EQ(ARBITRARY_DOWN_TIME, event.getDownTime());
+    ASSERT_EQ(ARBITRARY_EVENT_TIME, event.getEventTime());
+
+    // Set source.
+    event.setSource(AINPUT_SOURCE_JOYSTICK);
+    ASSERT_EQ(AINPUT_SOURCE_JOYSTICK, event.getSource());
+}
+
+
+// --- MotionEventTest ---
+
+class MotionEventTest : public BaseTest {
+protected:
+    static const nsecs_t ARBITRARY_DOWN_TIME;
+    static const nsecs_t ARBITRARY_EVENT_TIME;
+    static const float X_OFFSET;
+    static const float Y_OFFSET;
+
+    void initializeEventWithHistory(MotionEvent* event);
+    void assertEqualsEventWithHistory(const MotionEvent* event);
+};
+
+const nsecs_t MotionEventTest::ARBITRARY_DOWN_TIME = 1;
+const nsecs_t MotionEventTest::ARBITRARY_EVENT_TIME = 2;
+const float MotionEventTest::X_OFFSET = 1.0f;
+const float MotionEventTest::Y_OFFSET = 1.1f;
+
+void MotionEventTest::initializeEventWithHistory(MotionEvent* event) {
+    PointerProperties pointerProperties[2];
+    pointerProperties[0].clear();
+    pointerProperties[0].id = 1;
+    pointerProperties[0].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
+    pointerProperties[1].clear();
+    pointerProperties[1].id = 2;
+    pointerProperties[1].toolType = AMOTION_EVENT_TOOL_TYPE_STYLUS;
+
+    PointerCoords pointerCoords[2];
+    pointerCoords[0].clear();
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 10);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 11);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 12);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 13);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 14);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 15);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 16);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 17);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 18);
+    pointerCoords[1].clear();
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 20);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 21);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 22);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 23);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 24);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 25);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 26);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 27);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 28);
+    event->initialize(2, AINPUT_SOURCE_TOUCHSCREEN, AMOTION_EVENT_ACTION_MOVE,
+            AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED,
+            AMOTION_EVENT_EDGE_FLAG_TOP, AMETA_ALT_ON, AMOTION_EVENT_BUTTON_PRIMARY,
+            X_OFFSET, Y_OFFSET, 2.0f, 2.1f,
+            ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME,
+            2, pointerProperties, pointerCoords);
+
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 110);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 111);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 112);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 113);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 114);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 115);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 116);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 117);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 118);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 120);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 121);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 122);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 123);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 124);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 125);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 126);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 127);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 128);
+    event->addSample(ARBITRARY_EVENT_TIME + 1, pointerCoords);
+
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 210);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 211);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 212);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 213);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 214);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 215);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 216);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 217);
+    pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 218);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_X, 220);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_Y, 221);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 222);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 223);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 224);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 225);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 226);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 227);
+    pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 228);
+    event->addSample(ARBITRARY_EVENT_TIME + 2, pointerCoords);
+}
+
+void MotionEventTest::assertEqualsEventWithHistory(const MotionEvent* event) {
+    // Check properties.
+    ASSERT_EQ(AINPUT_EVENT_TYPE_MOTION, event->getType());
+    ASSERT_EQ(2, event->getDeviceId());
+    ASSERT_EQ(AINPUT_SOURCE_TOUCHSCREEN, event->getSource());
+    ASSERT_EQ(AMOTION_EVENT_ACTION_MOVE, event->getAction());
+    ASSERT_EQ(AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED, event->getFlags());
+    ASSERT_EQ(AMOTION_EVENT_EDGE_FLAG_TOP, event->getEdgeFlags());
+    ASSERT_EQ(AMETA_ALT_ON, event->getMetaState());
+    ASSERT_EQ(AMOTION_EVENT_BUTTON_PRIMARY, event->getButtonState());
+    ASSERT_EQ(X_OFFSET, event->getXOffset());
+    ASSERT_EQ(Y_OFFSET, event->getYOffset());
+    ASSERT_EQ(2.0f, event->getXPrecision());
+    ASSERT_EQ(2.1f, event->getYPrecision());
+    ASSERT_EQ(ARBITRARY_DOWN_TIME, event->getDownTime());
+
+    ASSERT_EQ(2U, event->getPointerCount());
+    ASSERT_EQ(1, event->getPointerId(0));
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_FINGER, event->getToolType(0));
+    ASSERT_EQ(2, event->getPointerId(1));
+    ASSERT_EQ(AMOTION_EVENT_TOOL_TYPE_STYLUS, event->getToolType(1));
+
+    ASSERT_EQ(2U, event->getHistorySize());
+
+    // Check data.
+    ASSERT_EQ(ARBITRARY_EVENT_TIME, event->getHistoricalEventTime(0));
+    ASSERT_EQ(ARBITRARY_EVENT_TIME + 1, event->getHistoricalEventTime(1));
+    ASSERT_EQ(ARBITRARY_EVENT_TIME + 2, event->getEventTime());
+
+    ASSERT_EQ(11, event->getHistoricalRawPointerCoords(0, 0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(21, event->getHistoricalRawPointerCoords(1, 0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(111, event->getHistoricalRawPointerCoords(0, 1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(121, event->getHistoricalRawPointerCoords(1, 1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(211, event->getRawPointerCoords(0)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+    ASSERT_EQ(221, event->getRawPointerCoords(1)->
+            getAxisValue(AMOTION_EVENT_AXIS_Y));
+
+    ASSERT_EQ(11, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 0, 0));
+    ASSERT_EQ(21, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 1, 0));
+    ASSERT_EQ(111, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 0, 1));
+    ASSERT_EQ(121, event->getHistoricalRawAxisValue(AMOTION_EVENT_AXIS_Y, 1, 1));
+    ASSERT_EQ(211, event->getRawAxisValue(AMOTION_EVENT_AXIS_Y, 0));
+    ASSERT_EQ(221, event->getRawAxisValue(AMOTION_EVENT_AXIS_Y, 1));
+
+    ASSERT_EQ(10, event->getHistoricalRawX(0, 0));
+    ASSERT_EQ(20, event->getHistoricalRawX(1, 0));
+    ASSERT_EQ(110, event->getHistoricalRawX(0, 1));
+    ASSERT_EQ(120, event->getHistoricalRawX(1, 1));
+    ASSERT_EQ(210, event->getRawX(0));
+    ASSERT_EQ(220, event->getRawX(1));
+
+    ASSERT_EQ(11, event->getHistoricalRawY(0, 0));
+    ASSERT_EQ(21, event->getHistoricalRawY(1, 0));
+    ASSERT_EQ(111, event->getHistoricalRawY(0, 1));
+    ASSERT_EQ(121, event->getHistoricalRawY(1, 1));
+    ASSERT_EQ(211, event->getRawY(0));
+    ASSERT_EQ(221, event->getRawY(1));
+
+    ASSERT_EQ(X_OFFSET + 10, event->getHistoricalX(0, 0));
+    ASSERT_EQ(X_OFFSET + 20, event->getHistoricalX(1, 0));
+    ASSERT_EQ(X_OFFSET + 110, event->getHistoricalX(0, 1));
+    ASSERT_EQ(X_OFFSET + 120, event->getHistoricalX(1, 1));
+    ASSERT_EQ(X_OFFSET + 210, event->getX(0));
+    ASSERT_EQ(X_OFFSET + 220, event->getX(1));
+
+    ASSERT_EQ(Y_OFFSET + 11, event->getHistoricalY(0, 0));
+    ASSERT_EQ(Y_OFFSET + 21, event->getHistoricalY(1, 0));
+    ASSERT_EQ(Y_OFFSET + 111, event->getHistoricalY(0, 1));
+    ASSERT_EQ(Y_OFFSET + 121, event->getHistoricalY(1, 1));
+    ASSERT_EQ(Y_OFFSET + 211, event->getY(0));
+    ASSERT_EQ(Y_OFFSET + 221, event->getY(1));
+
+    ASSERT_EQ(12, event->getHistoricalPressure(0, 0));
+    ASSERT_EQ(22, event->getHistoricalPressure(1, 0));
+    ASSERT_EQ(112, event->getHistoricalPressure(0, 1));
+    ASSERT_EQ(122, event->getHistoricalPressure(1, 1));
+    ASSERT_EQ(212, event->getPressure(0));
+    ASSERT_EQ(222, event->getPressure(1));
+
+    ASSERT_EQ(13, event->getHistoricalSize(0, 0));
+    ASSERT_EQ(23, event->getHistoricalSize(1, 0));
+    ASSERT_EQ(113, event->getHistoricalSize(0, 1));
+    ASSERT_EQ(123, event->getHistoricalSize(1, 1));
+    ASSERT_EQ(213, event->getSize(0));
+    ASSERT_EQ(223, event->getSize(1));
+
+    ASSERT_EQ(14, event->getHistoricalTouchMajor(0, 0));
+    ASSERT_EQ(24, event->getHistoricalTouchMajor(1, 0));
+    ASSERT_EQ(114, event->getHistoricalTouchMajor(0, 1));
+    ASSERT_EQ(124, event->getHistoricalTouchMajor(1, 1));
+    ASSERT_EQ(214, event->getTouchMajor(0));
+    ASSERT_EQ(224, event->getTouchMajor(1));
+
+    ASSERT_EQ(15, event->getHistoricalTouchMinor(0, 0));
+    ASSERT_EQ(25, event->getHistoricalTouchMinor(1, 0));
+    ASSERT_EQ(115, event->getHistoricalTouchMinor(0, 1));
+    ASSERT_EQ(125, event->getHistoricalTouchMinor(1, 1));
+    ASSERT_EQ(215, event->getTouchMinor(0));
+    ASSERT_EQ(225, event->getTouchMinor(1));
+
+    ASSERT_EQ(16, event->getHistoricalToolMajor(0, 0));
+    ASSERT_EQ(26, event->getHistoricalToolMajor(1, 0));
+    ASSERT_EQ(116, event->getHistoricalToolMajor(0, 1));
+    ASSERT_EQ(126, event->getHistoricalToolMajor(1, 1));
+    ASSERT_EQ(216, event->getToolMajor(0));
+    ASSERT_EQ(226, event->getToolMajor(1));
+
+    ASSERT_EQ(17, event->getHistoricalToolMinor(0, 0));
+    ASSERT_EQ(27, event->getHistoricalToolMinor(1, 0));
+    ASSERT_EQ(117, event->getHistoricalToolMinor(0, 1));
+    ASSERT_EQ(127, event->getHistoricalToolMinor(1, 1));
+    ASSERT_EQ(217, event->getToolMinor(0));
+    ASSERT_EQ(227, event->getToolMinor(1));
+
+    ASSERT_EQ(18, event->getHistoricalOrientation(0, 0));
+    ASSERT_EQ(28, event->getHistoricalOrientation(1, 0));
+    ASSERT_EQ(118, event->getHistoricalOrientation(0, 1));
+    ASSERT_EQ(128, event->getHistoricalOrientation(1, 1));
+    ASSERT_EQ(218, event->getOrientation(0));
+    ASSERT_EQ(228, event->getOrientation(1));
+}
+
+TEST_F(MotionEventTest, Properties) {
+    MotionEvent event;
+
+    // Initialize, add samples and check properties.
+    initializeEventWithHistory(&event);
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&event));
+
+    // Set source.
+    event.setSource(AINPUT_SOURCE_JOYSTICK);
+    ASSERT_EQ(AINPUT_SOURCE_JOYSTICK, event.getSource());
+
+    // Set action.
+    event.setAction(AMOTION_EVENT_ACTION_CANCEL);
+    ASSERT_EQ(AMOTION_EVENT_ACTION_CANCEL, event.getAction());
+
+    // Set meta state.
+    event.setMetaState(AMETA_CTRL_ON);
+    ASSERT_EQ(AMETA_CTRL_ON, event.getMetaState());
+}
+
+TEST_F(MotionEventTest, CopyFrom_KeepHistory) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    MotionEvent copy;
+    copy.copyFrom(&event, true /*keepHistory*/);
+
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&event));
+}
+
+TEST_F(MotionEventTest, CopyFrom_DoNotKeepHistory) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    MotionEvent copy;
+    copy.copyFrom(&event, false /*keepHistory*/);
+
+    ASSERT_EQ(event.getPointerCount(), copy.getPointerCount());
+    ASSERT_EQ(0U, copy.getHistorySize());
+
+    ASSERT_EQ(event.getPointerId(0), copy.getPointerId(0));
+    ASSERT_EQ(event.getPointerId(1), copy.getPointerId(1));
+
+    ASSERT_EQ(event.getEventTime(), copy.getEventTime());
+
+    ASSERT_EQ(event.getX(0), copy.getX(0));
+}
+
+TEST_F(MotionEventTest, OffsetLocation) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    event.offsetLocation(5.0f, -2.0f);
+
+    ASSERT_EQ(X_OFFSET + 5.0f, event.getXOffset());
+    ASSERT_EQ(Y_OFFSET - 2.0f, event.getYOffset());
+}
+
+TEST_F(MotionEventTest, Scale) {
+    MotionEvent event;
+    initializeEventWithHistory(&event);
+
+    event.scale(2.0f);
+
+    ASSERT_EQ(X_OFFSET * 2, event.getXOffset());
+    ASSERT_EQ(Y_OFFSET * 2, event.getYOffset());
+
+    ASSERT_EQ(210 * 2, event.getRawX(0));
+    ASSERT_EQ(211 * 2, event.getRawY(0));
+    ASSERT_EQ((X_OFFSET + 210) * 2, event.getX(0));
+    ASSERT_EQ((Y_OFFSET + 211) * 2, event.getY(0));
+    ASSERT_EQ(212, event.getPressure(0));
+    ASSERT_EQ(213, event.getSize(0));
+    ASSERT_EQ(214 * 2, event.getTouchMajor(0));
+    ASSERT_EQ(215 * 2, event.getTouchMinor(0));
+    ASSERT_EQ(216 * 2, event.getToolMajor(0));
+    ASSERT_EQ(217 * 2, event.getToolMinor(0));
+    ASSERT_EQ(218, event.getOrientation(0));
+}
+
+TEST_F(MotionEventTest, Parcel) {
+    Parcel parcel;
+
+    MotionEvent inEvent;
+    initializeEventWithHistory(&inEvent);
+    MotionEvent outEvent;
+
+    // Round trip.
+    inEvent.writeToParcel(&parcel);
+    parcel.setDataPosition(0);
+    outEvent.readFromParcel(&parcel);
+
+    ASSERT_NO_FATAL_FAILURE(assertEqualsEventWithHistory(&outEvent));
+}
+
+static void setRotationMatrix(float matrix[9], float angle) {
+    float sin = sinf(angle);
+    float cos = cosf(angle);
+    matrix[0] = cos;
+    matrix[1] = -sin;
+    matrix[2] = 0;
+    matrix[3] = sin;
+    matrix[4] = cos;
+    matrix[5] = 0;
+    matrix[6] = 0;
+    matrix[7] = 0;
+    matrix[8] = 1.0f;
+}
+
+TEST_F(MotionEventTest, Transform) {
+    // Generate some points on a circle.
+    // Each point 'i' is a point on a circle of radius ROTATION centered at (3,2) at an angle
+    // of ARC * i degrees clockwise relative to the Y axis.
+    // The geometrical representation is irrelevant to the test, it's just easy to generate
+    // and check rotation.  We set the orientation to the same angle.
+    // Coordinate system: down is increasing Y, right is increasing X.
+    const float PI_180 = float(M_PI / 180);
+    const float RADIUS = 10;
+    const float ARC = 36;
+    const float ROTATION = ARC * 2;
+
+    const size_t pointerCount = 11;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        float angle = float(i * ARC * PI_180);
+        pointerProperties[i].clear();
+        pointerProperties[i].id = i;
+        pointerCoords[i].clear();
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_X, sinf(angle) * RADIUS + 3);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_Y, -cosf(angle) * RADIUS + 2);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, angle);
+    }
+    MotionEvent event;
+    event.initialize(0, 0, AMOTION_EVENT_ACTION_MOVE, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0, pointerCount, pointerProperties, pointerCoords);
+    float originalRawX = 0 + 3;
+    float originalRawY = -RADIUS + 2;
+
+    // Check original raw X and Y assumption.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+
+    // Now translate the motion event so the circle's origin is at (0,0).
+    event.offsetLocation(-3, -2);
+
+    // Offsetting the location should preserve the raw X and Y of the first point.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+
+    // Apply a rotation about the origin by ROTATION degrees clockwise.
+    float matrix[9];
+    setRotationMatrix(matrix, ROTATION * PI_180);
+    event.transform(matrix);
+
+    // Check the points.
+    for (size_t i = 0; i < pointerCount; i++) {
+        float angle = float((i * ARC + ROTATION) * PI_180);
+        ASSERT_NEAR(sinf(angle) * RADIUS, event.getX(i), 0.001);
+        ASSERT_NEAR(-cosf(angle) * RADIUS, event.getY(i), 0.001);
+        ASSERT_NEAR(tanf(angle), tanf(event.getOrientation(i)), 0.1);
+    }
+
+    // Applying the transformation should preserve the raw X and Y of the first point.
+    ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
+    ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
+}
+
+} // namespace android
diff --git a/libs/input/tests/InputPublisherAndConsumer_test.cpp b/libs/input/tests/InputPublisherAndConsumer_test.cpp
new file mode 100644
index 0000000..de192f1
--- /dev/null
+++ b/libs/input/tests/InputPublisherAndConsumer_test.cpp
@@ -0,0 +1,288 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TestHelpers.h"
+
+#include <unistd.h>
+#include <sys/mman.h>
+#include <time.h>
+
+#include <cutils/ashmem.h>
+#include <gtest/gtest.h>
+#include <input/InputTransport.h>
+#include <utils/Timers.h>
+#include <utils/StopWatch.h>
+
+namespace android {
+
+class InputPublisherAndConsumerTest : public testing::Test {
+protected:
+    sp<InputChannel> serverChannel, clientChannel;
+    InputPublisher* mPublisher;
+    InputConsumer* mConsumer;
+    PreallocatedInputEventFactory mEventFactory;
+
+    virtual void SetUp() {
+        status_t result = InputChannel::openInputChannelPair(String8("channel name"),
+                serverChannel, clientChannel);
+
+        mPublisher = new InputPublisher(serverChannel);
+        mConsumer = new InputConsumer(clientChannel);
+    }
+
+    virtual void TearDown() {
+        if (mPublisher) {
+            delete mPublisher;
+            mPublisher = NULL;
+        }
+
+        if (mConsumer) {
+            delete mConsumer;
+            mConsumer = NULL;
+        }
+
+        serverChannel.clear();
+        clientChannel.clear();
+    }
+
+    void PublishAndConsumeKeyEvent();
+    void PublishAndConsumeMotionEvent();
+};
+
+TEST_F(InputPublisherAndConsumerTest, GetChannel_ReturnsTheChannel) {
+    EXPECT_EQ(serverChannel.get(), mPublisher->getChannel().get());
+    EXPECT_EQ(clientChannel.get(), mConsumer->getChannel().get());
+}
+
+void InputPublisherAndConsumerTest::PublishAndConsumeKeyEvent() {
+    status_t status;
+
+    const uint32_t seq = 15;
+    const int32_t deviceId = 1;
+    const int32_t source = AINPUT_SOURCE_KEYBOARD;
+    const int32_t action = AKEY_EVENT_ACTION_DOWN;
+    const int32_t flags = AKEY_EVENT_FLAG_FROM_SYSTEM;
+    const int32_t keyCode = AKEYCODE_ENTER;
+    const int32_t scanCode = 13;
+    const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
+    const int32_t repeatCount = 1;
+    const nsecs_t downTime = 3;
+    const nsecs_t eventTime = 4;
+
+    status = mPublisher->publishKeyEvent(seq, deviceId, source, action, flags,
+            keyCode, scanCode, metaState, repeatCount, downTime, eventTime);
+    ASSERT_EQ(OK, status)
+            << "publisher publishKeyEvent should return OK";
+
+    uint32_t consumeSeq;
+    InputEvent* event;
+    status = mConsumer->consume(&mEventFactory, true /*consumeBatches*/, -1, &consumeSeq, &event);
+    ASSERT_EQ(OK, status)
+            << "consumer consume should return OK";
+
+    ASSERT_TRUE(event != NULL)
+            << "consumer should have returned non-NULL event";
+    ASSERT_EQ(AINPUT_EVENT_TYPE_KEY, event->getType())
+            << "consumer should have returned a key event";
+
+    KeyEvent* keyEvent = static_cast<KeyEvent*>(event);
+    EXPECT_EQ(seq, consumeSeq);
+    EXPECT_EQ(deviceId, keyEvent->getDeviceId());
+    EXPECT_EQ(source, keyEvent->getSource());
+    EXPECT_EQ(action, keyEvent->getAction());
+    EXPECT_EQ(flags, keyEvent->getFlags());
+    EXPECT_EQ(keyCode, keyEvent->getKeyCode());
+    EXPECT_EQ(scanCode, keyEvent->getScanCode());
+    EXPECT_EQ(metaState, keyEvent->getMetaState());
+    EXPECT_EQ(repeatCount, keyEvent->getRepeatCount());
+    EXPECT_EQ(downTime, keyEvent->getDownTime());
+    EXPECT_EQ(eventTime, keyEvent->getEventTime());
+
+    status = mConsumer->sendFinishedSignal(seq, true);
+    ASSERT_EQ(OK, status)
+            << "consumer sendFinishedSignal should return OK";
+
+    uint32_t finishedSeq = 0;
+    bool handled = false;
+    status = mPublisher->receiveFinishedSignal(&finishedSeq, &handled);
+    ASSERT_EQ(OK, status)
+            << "publisher receiveFinishedSignal should return OK";
+    ASSERT_EQ(seq, finishedSeq)
+            << "publisher receiveFinishedSignal should have returned the original sequence number";
+    ASSERT_TRUE(handled)
+            << "publisher receiveFinishedSignal should have set handled to consumer's reply";
+}
+
+void InputPublisherAndConsumerTest::PublishAndConsumeMotionEvent() {
+    status_t status;
+
+    const uint32_t seq = 15;
+    const int32_t deviceId = 1;
+    const int32_t source = AINPUT_SOURCE_TOUCHSCREEN;
+    const int32_t action = AMOTION_EVENT_ACTION_MOVE;
+    const int32_t flags = AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED;
+    const int32_t edgeFlags = AMOTION_EVENT_EDGE_FLAG_TOP;
+    const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
+    const int32_t buttonState = AMOTION_EVENT_BUTTON_PRIMARY;
+    const float xOffset = -10;
+    const float yOffset = -20;
+    const float xPrecision = 0.25;
+    const float yPrecision = 0.5;
+    const nsecs_t downTime = 3;
+    const size_t pointerCount = 3;
+    const nsecs_t eventTime = 4;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].clear();
+        pointerProperties[i].id = (i + 2) % pointerCount;
+        pointerProperties[i].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
+
+        pointerCoords[i].clear();
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_X, 100 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_Y, 200 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 0.5 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 0.7 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 1.5 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 1.7 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.5 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.7 * i);
+        pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 3.5 * i);
+    }
+
+    status = mPublisher->publishMotionEvent(seq, deviceId, source, action, flags, edgeFlags,
+            metaState, buttonState, xOffset, yOffset, xPrecision, yPrecision,
+            downTime, eventTime, pointerCount,
+            pointerProperties, pointerCoords);
+    ASSERT_EQ(OK, status)
+            << "publisher publishMotionEvent should return OK";
+
+    uint32_t consumeSeq;
+    InputEvent* event;
+    status = mConsumer->consume(&mEventFactory, true /*consumeBatches*/, -1, &consumeSeq, &event);
+    ASSERT_EQ(OK, status)
+            << "consumer consume should return OK";
+
+    ASSERT_TRUE(event != NULL)
+            << "consumer should have returned non-NULL event";
+    ASSERT_EQ(AINPUT_EVENT_TYPE_MOTION, event->getType())
+            << "consumer should have returned a motion event";
+
+    MotionEvent* motionEvent = static_cast<MotionEvent*>(event);
+    EXPECT_EQ(seq, consumeSeq);
+    EXPECT_EQ(deviceId, motionEvent->getDeviceId());
+    EXPECT_EQ(source, motionEvent->getSource());
+    EXPECT_EQ(action, motionEvent->getAction());
+    EXPECT_EQ(flags, motionEvent->getFlags());
+    EXPECT_EQ(edgeFlags, motionEvent->getEdgeFlags());
+    EXPECT_EQ(metaState, motionEvent->getMetaState());
+    EXPECT_EQ(buttonState, motionEvent->getButtonState());
+    EXPECT_EQ(xPrecision, motionEvent->getXPrecision());
+    EXPECT_EQ(yPrecision, motionEvent->getYPrecision());
+    EXPECT_EQ(downTime, motionEvent->getDownTime());
+    EXPECT_EQ(eventTime, motionEvent->getEventTime());
+    EXPECT_EQ(pointerCount, motionEvent->getPointerCount());
+    EXPECT_EQ(0U, motionEvent->getHistorySize());
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        SCOPED_TRACE(i);
+        EXPECT_EQ(pointerProperties[i].id, motionEvent->getPointerId(i));
+        EXPECT_EQ(pointerProperties[i].toolType, motionEvent->getToolType(i));
+
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
+                motionEvent->getRawX(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y),
+                motionEvent->getRawY(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X) + xOffset,
+                motionEvent->getX(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y) + yOffset,
+                motionEvent->getY(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
+                motionEvent->getPressure(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
+                motionEvent->getSize(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
+                motionEvent->getTouchMajor(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
+                motionEvent->getTouchMinor(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
+                motionEvent->getToolMajor(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
+                motionEvent->getToolMinor(i));
+        EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION),
+                motionEvent->getOrientation(i));
+    }
+
+    status = mConsumer->sendFinishedSignal(seq, false);
+    ASSERT_EQ(OK, status)
+            << "consumer sendFinishedSignal should return OK";
+
+    uint32_t finishedSeq = 0;
+    bool handled = true;
+    status = mPublisher->receiveFinishedSignal(&finishedSeq, &handled);
+    ASSERT_EQ(OK, status)
+            << "publisher receiveFinishedSignal should return OK";
+    ASSERT_EQ(seq, finishedSeq)
+            << "publisher receiveFinishedSignal should have returned the original sequence number";
+    ASSERT_FALSE(handled)
+            << "publisher receiveFinishedSignal should have set handled to consumer's reply";
+}
+
+TEST_F(InputPublisherAndConsumerTest, PublishKeyEvent_EndToEnd) {
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeKeyEvent());
+}
+
+TEST_F(InputPublisherAndConsumerTest, PublishMotionEvent_EndToEnd) {
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeMotionEvent());
+}
+
+TEST_F(InputPublisherAndConsumerTest, PublishMotionEvent_WhenPointerCountLessThan1_ReturnsError) {
+    status_t status;
+    const size_t pointerCount = 0;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+
+    status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            pointerCount, pointerProperties, pointerCoords);
+    ASSERT_EQ(BAD_VALUE, status)
+            << "publisher publishMotionEvent should return BAD_VALUE";
+}
+
+TEST_F(InputPublisherAndConsumerTest, PublishMotionEvent_WhenPointerCountGreaterThanMax_ReturnsError) {
+    status_t status;
+    const size_t pointerCount = MAX_POINTERS + 1;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].clear();
+        pointerCoords[i].clear();
+    }
+
+    status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            pointerCount, pointerProperties, pointerCoords);
+    ASSERT_EQ(BAD_VALUE, status)
+            << "publisher publishMotionEvent should return BAD_VALUE";
+}
+
+TEST_F(InputPublisherAndConsumerTest, PublishMultipleEvents_EndToEnd) {
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeMotionEvent());
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeKeyEvent());
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeMotionEvent());
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeMotionEvent());
+    ASSERT_NO_FATAL_FAILURE(PublishAndConsumeKeyEvent());
+}
+
+} // namespace android
diff --git a/libs/input/tests/TestHelpers.h b/libs/input/tests/TestHelpers.h
new file mode 100644
index 0000000..fe87bb9
--- /dev/null
+++ b/libs/input/tests/TestHelpers.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TESTHELPERS_H
+#define TESTHELPERS_H
+
+#include <unistd.h>
+
+#include <utils/threads.h>
+
+namespace android {
+
+class Pipe {
+public:
+    int sendFd;
+    int receiveFd;
+
+    Pipe() {
+        int fds[2];
+        ::pipe(fds);
+
+        receiveFd = fds[0];
+        sendFd = fds[1];
+    }
+
+    ~Pipe() {
+        if (sendFd != -1) {
+            ::close(sendFd);
+        }
+
+        if (receiveFd != -1) {
+            ::close(receiveFd);
+        }
+    }
+
+    status_t writeSignal() {
+        ssize_t nWritten = ::write(sendFd, "*", 1);
+        return nWritten == 1 ? 0 : -errno;
+    }
+
+    status_t readSignal() {
+        char buf[1];
+        ssize_t nRead = ::read(receiveFd, buf, 1);
+        return nRead == 1 ? 0 : nRead == 0 ? -EPIPE : -errno;
+    }
+};
+
+class DelayedTask : public Thread {
+    int mDelayMillis;
+
+public:
+    DelayedTask(int delayMillis) : mDelayMillis(delayMillis) { }
+
+protected:
+    virtual ~DelayedTask() { }
+
+    virtual void doTask() = 0;
+
+    virtual bool threadLoop() {
+        usleep(mDelayMillis * 1000);
+        doTask();
+        return false;
+    }
+};
+
+} // namespace android
+
+#endif // TESTHELPERS_H
diff --git a/libs/ui/Rect.cpp b/libs/ui/Rect.cpp
index c4dd55b..b480f3a 100644
--- a/libs/ui/Rect.cpp
+++ b/libs/ui/Rect.cpp
@@ -20,11 +20,11 @@
 namespace android {
 
 static inline int32_t min(int32_t a, int32_t b) {
-    return (a<b) ? a : b;
+    return (a < b) ? a : b;
 }
 
 static inline int32_t max(int32_t a, int32_t b) {
-    return (a>b) ? a : b;
+    return (a > b) ? a : b;
 }
 
 void Rect::makeInvalid() {
@@ -34,18 +34,17 @@
     bottom = -1;
 }
 
-bool Rect::operator < (const Rect& rhs) const
-{
-    if (top<rhs.top) {
+bool Rect::operator <(const Rect& rhs) const {
+    if (top < rhs.top) {
         return true;
     } else if (top == rhs.top) {
         if (left < rhs.left) {
             return true;
         } else if (left == rhs.left) {
-            if (bottom<rhs.bottom) {
+            if (bottom < rhs.bottom) {
                 return true;
             } else if (bottom == rhs.bottom) {
-                if (right<rhs.right) {
+                if (right < rhs.right) {
                     return true;
                 }
             }
@@ -54,8 +53,7 @@
     return false;
 }
 
-Rect& Rect::offsetTo(int32_t x, int32_t y)
-{
+Rect& Rect::offsetTo(int32_t x, int32_t y) {
     right -= left - x;
     bottom -= top - y;
     left = x;
@@ -63,45 +61,41 @@
     return *this;
 }
 
-Rect& Rect::offsetBy(int32_t x, int32_t y)
-{
+Rect& Rect::offsetBy(int32_t x, int32_t y) {
     left += x;
-    top  += y;
-    right+= x;
-    bottom+=y;
+    top += y;
+    right += x;
+    bottom += y;
     return *this;
 }
 
-const Rect Rect::operator + (const Point& rhs) const
-{
-    const Rect result(left+rhs.x, top+rhs.y, right+rhs.x, bottom+rhs.y);
+const Rect Rect::operator +(const Point& rhs) const {
+    const Rect result(left + rhs.x, top + rhs.y, right + rhs.x, bottom + rhs.y);
     return result;
 }
 
-const Rect Rect::operator - (const Point& rhs) const
-{
-    const Rect result(left-rhs.x, top-rhs.y, right-rhs.x, bottom-rhs.y);
+const Rect Rect::operator -(const Point& rhs) const {
+    const Rect result(left - rhs.x, top - rhs.y, right - rhs.x, bottom - rhs.y);
     return result;
 }
 
-bool Rect::intersect(const Rect& with, Rect* result) const
-{
-    result->left    = max(left, with.left);
-    result->top     = max(top, with.top);
-    result->right   = min(right, with.right);
-    result->bottom  = min(bottom, with.bottom);
+bool Rect::intersect(const Rect& with, Rect* result) const {
+    result->left = max(left, with.left);
+    result->top = max(top, with.top);
+    result->right = min(right, with.right);
+    result->bottom = min(bottom, with.bottom);
     return !(result->isEmpty());
 }
 
 Rect Rect::transform(uint32_t xform, int32_t width, int32_t height) const {
     Rect result(*this);
     if (xform & HAL_TRANSFORM_FLIP_H) {
-        result = Rect(width - result.right, result.top,
-                width - result.left, result.bottom);
+        result = Rect(width - result.right, result.top, width - result.left,
+                result.bottom);
     }
     if (xform & HAL_TRANSFORM_FLIP_V) {
-        result = Rect(result.left, height - result.bottom,
-                result.right, height - result.top);
+        result = Rect(result.left, height - result.bottom, result.right,
+                height - result.top);
     }
     if (xform & HAL_TRANSFORM_ROT_90) {
         int left = height - result.bottom;
@@ -113,4 +107,35 @@
     return result;
 }
 
+Rect Rect::reduce(const Rect& exclude) const {
+    Rect result;
+
+    uint32_t mask = 0;
+    mask |= (exclude.left   > left)   ? 1 : 0;
+    mask |= (exclude.top    > top)    ? 2 : 0;
+    mask |= (exclude.right  < right)  ? 4 : 0;
+    mask |= (exclude.bottom < bottom) ? 8 : 0;
+
+    if (mask == 0) {
+        // crop entirely covers us
+        result.clear();
+    } else {
+        result = *this;
+        if (!(mask & (mask - 1))) {
+            // power-of-2, i.e.: just one bit is set
+            if (mask & 1) {
+                result.right = exclude.left;
+            } else if (mask & 2) {
+                result.bottom = exclude.top;
+            } else if (mask & 4) {
+                result.left = exclude.right;
+            } else if (mask & 8) {
+                result.top = exclude.bottom;
+            }
+        }
+    }
+
+    return result;
+}
+
 }; // namespace android
diff --git a/libs/ui/Region.cpp b/libs/ui/Region.cpp
index bf01488..623f8ed 100644
--- a/libs/ui/Region.cpp
+++ b/libs/ui/Region.cpp
@@ -697,7 +697,7 @@
         size_t count = reg.mStorage.size();
         Rect* rects = reg.mStorage.editArray();
         while (count) {
-            rects->translate(dx, dy);
+            rects->offsetBy(dx, dy);
             rects++;
             count--;
         }
diff --git a/libs/utils/Android.mk b/libs/utils/Android.mk
index cbfe7bd..42e1c7e 100644
--- a/libs/utils/Android.mk
+++ b/libs/utils/Android.mk
@@ -20,9 +20,7 @@
 commonSources:= \
 	BasicHashtable.cpp \
 	BlobCache.cpp \
-	BufferedTextOutput.cpp \
 	CallStack.cpp \
-	Debug.cpp \
 	FileMap.cpp \
 	Flattenable.cpp \
 	JenkinsHash.cpp \
@@ -36,18 +34,12 @@
 	StopWatch.cpp \
 	String8.cpp \
 	String16.cpp \
-	StringArray.cpp \
 	SystemClock.cpp \
-	TextOutput.cpp \
 	Threads.cpp \
 	Timers.cpp \
 	Tokenizer.cpp \
 	Unicode.cpp \
 	VectorImpl.cpp \
-	WorkQueue.cpp \
-	ZipFileCRO.cpp \
-	ZipFileRO.cpp \
-	ZipUtils.cpp \
 	misc.cpp
 
 host_commonCflags := -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS)
@@ -74,9 +66,6 @@
 LOCAL_SRC_FILES += Looper.cpp
 endif
 LOCAL_MODULE:= libutils
-LOCAL_STATIC_LIBRARIES := libz
-LOCAL_C_INCLUDES := \
-	external/zlib
 LOCAL_CFLAGS += $(host_commonCflags)
 LOCAL_LDLIBS += $(host_commonLdlibs)
 include $(BUILD_HOST_STATIC_LIBRARY)
@@ -90,15 +79,12 @@
 LOCAL_SRC_FILES += Looper.cpp
 endif
 LOCAL_MODULE:= lib64utils
-LOCAL_STATIC_LIBRARIES := libz
-LOCAL_C_INCLUDES := \
-	external/zlib
 LOCAL_CFLAGS += $(host_commonCflags) -m64
 LOCAL_LDLIBS += $(host_commonLdlibs)
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 
-# For the device
+# For the device, static
 # =====================================================
 include $(CLEAR_VARS)
 
@@ -123,14 +109,28 @@
 
 LOCAL_LDLIBS += -lpthread
 
+LOCAL_STATIC_LIBRARIES := \
+	libcutils
+
 LOCAL_SHARED_LIBRARIES := \
-	liblog \
-	libcutils \
-	libdl \
-	libcorkscrew \
-	libz
+        libcorkscrew \
+        liblog \
+        libdl
 
 LOCAL_MODULE:= libutils
+include $(BUILD_STATIC_LIBRARY)
+
+# For the device, shared
+# =====================================================
+include $(CLEAR_VARS)
+LOCAL_MODULE:= libutils
+LOCAL_WHOLE_STATIC_LIBRARIES := libutils
+LOCAL_SHARED_LIBRARIES := \
+        liblog \
+        libcutils \
+        libdl \
+        libcorkscrew
+
 include $(BUILD_SHARED_LIBRARY)
 
 # Include subdirectory makefiles
diff --git a/libs/utils/Looper.cpp b/libs/utils/Looper.cpp
index a5e6645..c51df2d 100644
--- a/libs/utils/Looper.cpp
+++ b/libs/utils/Looper.cpp
@@ -84,6 +84,8 @@
     LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake write pipe non-blocking.  errno=%d",
             errno);
 
+    mIdling = false;
+
     // Allocate the epoll instance and register the wake pipe.
     mEpollFd = epoll_create(EPOLL_SIZE_HINT);
     LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance.  errno=%d", errno);
@@ -214,9 +216,15 @@
     mResponses.clear();
     mResponseIndex = 0;
 
+    // We are about to idle.
+    mIdling = true;
+
     struct epoll_event eventItems[EPOLL_MAX_EVENTS];
     int eventCount = epoll_wait(mEpollFd, eventItems, EPOLL_MAX_EVENTS, timeoutMillis);
 
+    // No longer idling.
+    mIdling = false;
+
     // Acquire lock.
     mLock.lock();
 
@@ -558,4 +566,8 @@
     } // release lock
 }
 
+bool Looper::isIdling() const {
+    return mIdling;
+}
+
 } // namespace android
diff --git a/libs/utils/RefBase.cpp b/libs/utils/RefBase.cpp
index e538f68..f398a82 100644
--- a/libs/utils/RefBase.cpp
+++ b/libs/utils/RefBase.cpp
@@ -23,7 +23,6 @@
 #include <utils/CallStack.h>
 #include <utils/Log.h>
 #include <utils/threads.h>
-#include <utils/TextOutput.h>
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -648,19 +647,4 @@
     ref->mRefs->renameWeakRefId(old_id, new_id);
 }
 
-// ---------------------------------------------------------------------------
-
-TextOutput& printStrongPointer(TextOutput& to, const void* val)
-{
-    to << "sp<>(" << val << ")";
-    return to;
-}
-
-TextOutput& printWeakPointer(TextOutput& to, const void* val)
-{
-    to << "wp<>(" << val << ")";
-    return to;
-}
-
-
 }; // namespace android
diff --git a/libs/utils/Static.cpp b/libs/utils/Static.cpp
index 624e917..3ed07a1 100644
--- a/libs/utils/Static.cpp
+++ b/libs/utils/Static.cpp
@@ -17,13 +17,16 @@
 // All static variables go here, to control initialization and
 // destruction order in the library.
 
-#include <private/utils/Static.h>
-
-#include <utils/BufferedTextOutput.h>
-#include <utils/Log.h>
-
 namespace android {
 
+// For String8.cpp
+extern void initialize_string8();
+extern void terminate_string8();
+
+// For String16.cpp
+extern void initialize_string16();
+extern void terminate_string16();
+
 class LibUtilsFirstStatics
 {
 public:
@@ -43,49 +46,4 @@
 static LibUtilsFirstStatics gFirstStatics;
 int gDarwinCantLoadAllObjects = 1;
 
-// ------------ Text output streams
-
-Vector<int32_t> gTextBuffers;
-
-class LogTextOutput : public BufferedTextOutput
-{
-public:
-    LogTextOutput() : BufferedTextOutput(MULTITHREADED) { }
-    virtual ~LogTextOutput() { };
-
-protected:
-    virtual status_t writeLines(const struct iovec& vec, size_t N)
-    {
-        //android_writevLog(&vec, N);       <-- this is now a no-op
-        if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
-        ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
-        return NO_ERROR;
-    }
-};
-
-class FdTextOutput : public BufferedTextOutput
-{
-public:
-    FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
-    virtual ~FdTextOutput() { };
-
-protected:
-    virtual status_t writeLines(const struct iovec& vec, size_t N)
-    {
-        writev(mFD, &vec, N);
-        return NO_ERROR;
-    }
-
-private:
-    int mFD;
-};
-
-static LogTextOutput gLogTextOutput;
-static FdTextOutput gStdoutTextOutput(STDOUT_FILENO);
-static FdTextOutput gStderrTextOutput(STDERR_FILENO);
-
-TextOutput& alog(gLogTextOutput);
-TextOutput& aout(gStdoutTextOutput);
-TextOutput& aerr(gStderrTextOutput);
-
 }   // namespace android
diff --git a/libs/utils/String16.cpp b/libs/utils/String16.cpp
index 94e072f..b09b728 100644
--- a/libs/utils/String16.cpp
+++ b/libs/utils/String16.cpp
@@ -20,11 +20,8 @@
 #include <utils/Log.h>
 #include <utils/Unicode.h>
 #include <utils/String8.h>
-#include <utils/TextOutput.h>
 #include <utils/threads.h>
 
-#include <private/utils/Static.h>
-
 #include <memory.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -96,6 +93,19 @@
 {
 }
 
+String16::String16(StaticLinkage)
+    : mString(0)
+{
+    // this constructor is used when we can't rely on the static-initializers
+    // having run. In this case we always allocate an empty string. It's less
+    // efficient than using getEmptyString(), but we assume it's uncommon.
+
+    char16_t* data = static_cast<char16_t*>(
+            SharedBuffer::alloc(sizeof(char16_t))->data());
+    data[0] = 0;
+    mString = data;
+}
+
 String16::String16(const String16& o)
     : mString(o.mString)
 {
@@ -409,10 +419,4 @@
     return NO_MEMORY;
 }
 
-TextOutput& operator<<(TextOutput& to, const String16& val)
-{
-    to << String8(val).string();
-    return to;
-}
-
 }; // namespace android
diff --git a/libs/utils/String8.cpp b/libs/utils/String8.cpp
index 562f026..e852d77 100644
--- a/libs/utils/String8.cpp
+++ b/libs/utils/String8.cpp
@@ -20,11 +20,8 @@
 #include <utils/Unicode.h>
 #include <utils/SharedBuffer.h>
 #include <utils/String16.h>
-#include <utils/TextOutput.h>
 #include <utils/threads.h>
 
-#include <private/utils/Static.h>
-
 #include <ctype.h>
 
 /*
@@ -46,6 +43,8 @@
 extern int gDarwinCantLoadAllObjects;
 int gDarwinIsReallyAnnoying;
 
+void initialize_string8();
+
 static inline char* getEmptyString()
 {
     gEmptyStringBuf->acquire();
@@ -143,6 +142,19 @@
 {
 }
 
+String8::String8(StaticLinkage)
+    : mString(0)
+{
+    // this constructor is used when we can't rely on the static-initializers
+    // having run. In this case we always allocate an empty string. It's less
+    // efficient than using getEmptyString(), but we assume it's uncommon.
+
+    char* data = static_cast<char*>(
+            SharedBuffer::alloc(sizeof(char))->data());
+    data[0] = 0;
+    mString = data;
+}
+
 String8::String8(const String8& o)
     : mString(o.mString)
 {
@@ -450,12 +462,6 @@
     utf8_to_utf32(mString, length(), dst);
 }
 
-TextOutput& operator<<(TextOutput& to, const String8& val)
-{
-    to << val.string();
-    return to;
-}
-
 // ---------------------------------------------------------------------------
 // Path functions
 
diff --git a/libs/utils/StringArray.cpp b/libs/utils/StringArray.cpp
deleted file mode 100644
index aa42d68..0000000
--- a/libs/utils/StringArray.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Sortable array of strings.  STL-ish, but STL-free.
-//  
-
-#include <stdlib.h>
-#include <string.h>
-
-#include <utils/StringArray.h>
-
-namespace android {
-
-//
-// An expanding array of strings.  Add, get, sort, delete.
-//
-StringArray::StringArray()
-    : mMax(0), mCurrent(0), mArray(NULL)
-{
-}
-
-StringArray:: ~StringArray() {
-    for (int i = 0; i < mCurrent; i++)
-        delete[] mArray[i];
-    delete[] mArray;
-}
-
-//
-// Add a string.  A copy of the string is made.
-//
-bool StringArray::push_back(const char* str) {
-    if (mCurrent >= mMax) {
-        char** tmp;
-
-        if (mMax == 0)
-            mMax = 16;      // initial storage
-        else
-            mMax *= 2;
-
-        tmp = new char*[mMax];
-        if (tmp == NULL)
-            return false;
-
-        memcpy(tmp, mArray, mCurrent * sizeof(char*));
-        delete[] mArray;
-        mArray = tmp;
-    }
-
-    int len = strlen(str);
-    mArray[mCurrent] = new char[len+1];
-    memcpy(mArray[mCurrent], str, len+1);
-    mCurrent++;
-
-    return true;
-}
-
-//
-// Delete an entry.
-//
-void StringArray::erase(int idx) {
-    if (idx < 0 || idx >= mCurrent)
-        return;
-    delete[] mArray[idx];
-    if (idx < mCurrent-1) {
-        memmove(&mArray[idx], &mArray[idx+1],
-                (mCurrent-1 - idx) * sizeof(char*));
-    }
-    mCurrent--;
-}
-
-//
-// Sort the array.
-//
-void StringArray::sort(int (*compare)(const void*, const void*)) {
-    qsort(mArray, mCurrent, sizeof(char*), compare);
-}
-
-//
-// Pass this to the sort routine to do an ascending alphabetical sort.
-//
-int StringArray::cmpAscendingAlpha(const void* pstr1, const void* pstr2) {
-    return strcmp(*(const char**)pstr1, *(const char**)pstr2);
-}
-
-//
-// Set entry N to specified string.
-// [should use operator[] here]
-//
-void StringArray::setEntry(int idx, const char* str) {
-    if (idx < 0 || idx >= mCurrent)
-        return;
-    delete[] mArray[idx];
-    int len = strlen(str);
-    mArray[idx] = new char[len+1];
-    memcpy(mArray[idx], str, len+1);
-}
-
-
-}; // namespace android
diff --git a/libs/utils/SystemClock.cpp b/libs/utils/SystemClock.cpp
index ec2d82e..4b74889 100644
--- a/libs/utils/SystemClock.cpp
+++ b/libs/utils/SystemClock.cpp
@@ -36,63 +36,11 @@
 #include <utils/Timers.h>
 
 #define LOG_TAG "SystemClock"
-#include "utils/Log.h"
+#include <utils/Log.h>
 
 namespace android {
 
 /*
- * Set the current time.  This only works when running as root.
- */
-int setCurrentTimeMillis(int64_t millis)
-{
-#if WIN32
-    // not implemented
-    return -1;
-#else
-    struct timeval tv;
-#ifdef HAVE_ANDROID_OS
-    struct timespec ts;
-    int fd;
-    int res;
-#endif
-    int ret = 0;
-
-    if (millis <= 0 || millis / 1000LL >= INT_MAX) {
-        return -1;
-    }
-
-    tv.tv_sec = (time_t) (millis / 1000LL);
-    tv.tv_usec = (suseconds_t) ((millis % 1000LL) * 1000LL);
-
-    ALOGD("Setting time of day to sec=%d\n", (int) tv.tv_sec);
-
-#ifdef HAVE_ANDROID_OS
-    fd = open("/dev/alarm", O_RDWR);
-    if(fd < 0) {
-        ALOGW("Unable to open alarm driver: %s\n", strerror(errno));
-        return -1;
-    }
-    ts.tv_sec = tv.tv_sec;
-    ts.tv_nsec = tv.tv_usec * 1000;
-    res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
-    if(res < 0) {
-        ALOGW("Unable to set rtc to %ld: %s\n", tv.tv_sec, strerror(errno));
-        ret = -1;
-    }
-    close(fd);
-#else
-    if (settimeofday(&tv, NULL) != 0) {
-        ALOGW("Unable to set clock to %d.%d: %s\n",
-            (int) tv.tv_sec, (int) tv.tv_usec, strerror(errno));
-        ret = -1;
-    }
-#endif
-
-    return ret;
-#endif // WIN32
-}
-
-/*
  * native public static long uptimeMillis();
  */
 int64_t uptimeMillis()
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index 7b877e0..ff74914 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -21,7 +21,6 @@
 #include <utils/Log.h>
 
 #include <cutils/sched_policy.h>
-#include <cutils/properties.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -68,20 +67,6 @@
 
 typedef void* (*android_pthread_entry)(void*);
 
-static pthread_once_t gDoSchedulingGroupOnce = PTHREAD_ONCE_INIT;
-static bool gDoSchedulingGroup = true;
-
-static void checkDoSchedulingGroup(void) {
-    char buf[PROPERTY_VALUE_MAX];
-    int len = property_get("debug.sys.noschedgroups", buf, "");
-    if (len > 0) {
-        int temp;
-        if (sscanf(buf, "%d", &temp) == 1) {
-            gDoSchedulingGroup = temp == 0;
-        }
-    }
-}
-
 struct thread_data_t {
     thread_func_t   entryFunction;
     void*           userData;
@@ -97,15 +82,10 @@
         char * name = t->threadName;
         delete t;
         setpriority(PRIO_PROCESS, 0, prio);
-        pthread_once(&gDoSchedulingGroupOnce, checkDoSchedulingGroup);
-        if (gDoSchedulingGroup) {
-            if (prio >= ANDROID_PRIORITY_BACKGROUND) {
-                set_sched_policy(androidGetTid(), SP_BACKGROUND);
-            } else if (prio > ANDROID_PRIORITY_AUDIO) {
-                set_sched_policy(androidGetTid(), SP_FOREGROUND);
-            } else {
-                // defaults to that of parent, or as set by requestPriority()
-            }
+        if (prio >= ANDROID_PRIORITY_BACKGROUND) {
+            set_sched_policy(0, SP_BACKGROUND);
+        } else {
+            set_sched_policy(0, SP_FOREGROUND);
         }
         
         if (name) {
@@ -337,20 +317,10 @@
 #if defined(HAVE_PTHREADS)
     int lasterr = 0;
 
-    pthread_once(&gDoSchedulingGroupOnce, checkDoSchedulingGroup);
-    if (gDoSchedulingGroup) {
-        // set_sched_policy does not support tid == 0
-        int policy_tid;
-        if (tid == 0) {
-            policy_tid = androidGetTid();
-        } else {
-            policy_tid = tid;
-        }
-        if (pri >= ANDROID_PRIORITY_BACKGROUND) {
-            rc = set_sched_policy(policy_tid, SP_BACKGROUND);
-        } else if (getpriority(PRIO_PROCESS, tid) >= ANDROID_PRIORITY_BACKGROUND) {
-            rc = set_sched_policy(policy_tid, SP_FOREGROUND);
-        }
+    if (pri >= ANDROID_PRIORITY_BACKGROUND) {
+        rc = set_sched_policy(tid, SP_BACKGROUND);
+    } else if (getpriority(PRIO_PROCESS, tid) >= ANDROID_PRIORITY_BACKGROUND) {
+        rc = set_sched_policy(tid, SP_FOREGROUND);
     }
 
     if (rc) {
diff --git a/libs/utils/Timers.cpp b/libs/utils/Timers.cpp
index d4f8516..5293cd2 100644
--- a/libs/utils/Timers.cpp
+++ b/libs/utils/Timers.cpp
@@ -70,65 +70,3 @@
     }
     return timeoutDelayMillis;
 }
-
-
-/*
- * ===========================================================================
- *      DurationTimer
- * ===========================================================================
- */
-
-using namespace android;
-
-// Start the timer.
-void DurationTimer::start(void)
-{
-    gettimeofday(&mStartWhen, NULL);
-}
-
-// Stop the timer.
-void DurationTimer::stop(void)
-{
-    gettimeofday(&mStopWhen, NULL);
-}
-
-// Get the duration in microseconds.
-long long DurationTimer::durationUsecs(void) const
-{
-    return (long) subtractTimevals(&mStopWhen, &mStartWhen);
-}
-
-// Subtract two timevals.  Returns the difference (ptv1-ptv2) in
-// microseconds.
-/*static*/ long long DurationTimer::subtractTimevals(const struct timeval* ptv1,
-    const struct timeval* ptv2)
-{
-    long long stop  = ((long long) ptv1->tv_sec) * 1000000LL +
-                      ((long long) ptv1->tv_usec);
-    long long start = ((long long) ptv2->tv_sec) * 1000000LL +
-                      ((long long) ptv2->tv_usec);
-    return stop - start;
-}
-
-// Add the specified amount of time to the timeval.
-/*static*/ void DurationTimer::addToTimeval(struct timeval* ptv, long usec)
-{
-    if (usec < 0) {
-        ALOG(LOG_WARN, "", "Negative values not supported in addToTimeval\n");
-        return;
-    }
-
-    // normalize tv_usec if necessary
-    if (ptv->tv_usec >= 1000000) {
-        ptv->tv_sec += ptv->tv_usec / 1000000;
-        ptv->tv_usec %= 1000000;
-    }
-
-    ptv->tv_usec += usec % 1000000;
-    if (ptv->tv_usec >= 1000000) {
-        ptv->tv_usec -= 1000000;
-        ptv->tv_sec++;
-    }
-    ptv->tv_sec += usec / 1000000;
-}
-
diff --git a/libs/utils/VectorImpl.cpp b/libs/utils/VectorImpl.cpp
index 70f49de..5a79647 100644
--- a/libs/utils/VectorImpl.cpp
+++ b/libs/utils/VectorImpl.cpp
@@ -504,15 +504,6 @@
     do_move_backward(dest, from, num);
 }
 
-void VectorImpl::reservedVectorImpl1() { }
-void VectorImpl::reservedVectorImpl2() { }
-void VectorImpl::reservedVectorImpl3() { }
-void VectorImpl::reservedVectorImpl4() { }
-void VectorImpl::reservedVectorImpl5() { }
-void VectorImpl::reservedVectorImpl6() { }
-void VectorImpl::reservedVectorImpl7() { }
-void VectorImpl::reservedVectorImpl8() { }
-
 /*****************************************************************************/
 
 SortedVectorImpl::SortedVectorImpl(size_t itemSize, uint32_t flags)
@@ -628,16 +619,6 @@
     return i;
 }
 
-void SortedVectorImpl::reservedSortedVectorImpl1() { };
-void SortedVectorImpl::reservedSortedVectorImpl2() { };
-void SortedVectorImpl::reservedSortedVectorImpl3() { };
-void SortedVectorImpl::reservedSortedVectorImpl4() { };
-void SortedVectorImpl::reservedSortedVectorImpl5() { };
-void SortedVectorImpl::reservedSortedVectorImpl6() { };
-void SortedVectorImpl::reservedSortedVectorImpl7() { };
-void SortedVectorImpl::reservedSortedVectorImpl8() { };
-
-
 /*****************************************************************************/
 
 }; // namespace android
diff --git a/libs/utils/WorkQueue.cpp b/libs/utils/WorkQueue.cpp
deleted file mode 100644
index 3bb99a1..0000000
--- a/libs/utils/WorkQueue.cpp
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// #define LOG_NDEBUG 0
-#define LOG_TAG "WorkQueue"
-
-#include <utils/Log.h>
-#include <utils/WorkQueue.h>
-
-namespace android {
-
-// --- WorkQueue ---
-
-WorkQueue::WorkQueue(size_t maxThreads, bool canCallJava) :
-        mMaxThreads(maxThreads), mCanCallJava(canCallJava),
-        mCanceled(false), mFinished(false), mIdleThreads(0) {
-}
-
-WorkQueue::~WorkQueue() {
-    if (!cancel()) {
-        finish();
-    }
-}
-
-status_t WorkQueue::schedule(WorkUnit* workUnit, size_t backlog) {
-    AutoMutex _l(mLock);
-
-    if (mFinished || mCanceled) {
-        return INVALID_OPERATION;
-    }
-
-    if (mWorkThreads.size() < mMaxThreads
-            && mIdleThreads < mWorkUnits.size() + 1) {
-        sp<WorkThread> workThread = new WorkThread(this, mCanCallJava);
-        status_t status = workThread->run("WorkQueue::WorkThread");
-        if (status) {
-            return status;
-        }
-        mWorkThreads.add(workThread);
-        mIdleThreads += 1;
-    } else if (backlog) {
-        while (mWorkUnits.size() >= mMaxThreads * backlog) {
-            mWorkDequeuedCondition.wait(mLock);
-            if (mFinished || mCanceled) {
-                return INVALID_OPERATION;
-            }
-        }
-    }
-
-    mWorkUnits.add(workUnit);
-    mWorkChangedCondition.broadcast();
-    return OK;
-}
-
-status_t WorkQueue::cancel() {
-    AutoMutex _l(mLock);
-
-    return cancelLocked();
-}
-
-status_t WorkQueue::cancelLocked() {
-    if (mFinished) {
-        return INVALID_OPERATION;
-    }
-
-    if (!mCanceled) {
-        mCanceled = true;
-
-        size_t count = mWorkUnits.size();
-        for (size_t i = 0; i < count; i++) {
-            delete mWorkUnits.itemAt(i);
-        }
-        mWorkUnits.clear();
-        mWorkChangedCondition.broadcast();
-        mWorkDequeuedCondition.broadcast();
-    }
-    return OK;
-}
-
-status_t WorkQueue::finish() {
-    { // acquire lock
-        AutoMutex _l(mLock);
-
-        if (mFinished) {
-            return INVALID_OPERATION;
-        }
-
-        mFinished = true;
-        mWorkChangedCondition.broadcast();
-    } // release lock
-
-    // It is not possible for the list of work threads to change once the mFinished
-    // flag has been set, so we can access mWorkThreads outside of the lock here.
-    size_t count = mWorkThreads.size();
-    for (size_t i = 0; i < count; i++) {
-        mWorkThreads.itemAt(i)->join();
-    }
-    mWorkThreads.clear();
-    return OK;
-}
-
-bool WorkQueue::threadLoop() {
-    WorkUnit* workUnit;
-    { // acquire lock
-        AutoMutex _l(mLock);
-
-        for (;;) {
-            if (mCanceled) {
-                return false;
-            }
-
-            if (!mWorkUnits.isEmpty()) {
-                workUnit = mWorkUnits.itemAt(0);
-                mWorkUnits.removeAt(0);
-                mIdleThreads -= 1;
-                mWorkDequeuedCondition.broadcast();
-                break;
-            }
-
-            if (mFinished) {
-                return false;
-            }
-
-            mWorkChangedCondition.wait(mLock);
-        }
-    } // release lock
-
-    bool shouldContinue = workUnit->run();
-    delete workUnit;
-
-    { // acquire lock
-        AutoMutex _l(mLock);
-
-        mIdleThreads += 1;
-
-        if (!shouldContinue) {
-            cancelLocked();
-            return false;
-        }
-    } // release lock
-
-    return true;
-}
-
-// --- WorkQueue::WorkThread ---
-
-WorkQueue::WorkThread::WorkThread(WorkQueue* workQueue, bool canCallJava) :
-        Thread(canCallJava), mWorkQueue(workQueue) {
-}
-
-WorkQueue::WorkThread::~WorkThread() {
-}
-
-bool WorkQueue::WorkThread::threadLoop() {
-    return mWorkQueue->threadLoop();
-}
-
-};  // namespace android
diff --git a/libs/utils/ZipFileCRO.cpp b/libs/utils/ZipFileCRO.cpp
deleted file mode 100644
index 55dfd9f..0000000
--- a/libs/utils/ZipFileCRO.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <utils/ZipFileCRO.h>
-#include <utils/ZipFileRO.h>
-
-using namespace android;
-
-ZipFileCRO ZipFileXRO_open(const char* path) {
-    ZipFileRO* zip = new ZipFileRO();
-    if (zip->open(path) == NO_ERROR) {
-        return (ZipFileCRO)zip;
-    }
-    return NULL;
-}
-
-void ZipFileCRO_destroy(ZipFileCRO zipToken) {
-    ZipFileRO* zip = (ZipFileRO*)zipToken;
-    delete zip;
-}
-
-ZipEntryCRO ZipFileCRO_findEntryByName(ZipFileCRO zipToken,
-        const char* fileName) {
-    ZipFileRO* zip = (ZipFileRO*)zipToken;
-    return (ZipEntryCRO)zip->findEntryByName(fileName);
-}
-
-bool ZipFileCRO_getEntryInfo(ZipFileCRO zipToken, ZipEntryRO entryToken,
-        int* pMethod, size_t* pUncompLen,
-        size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32) {
-    ZipFileRO* zip = (ZipFileRO*)zipToken;
-    ZipEntryRO entry = (ZipEntryRO)entryToken;
-    return zip->getEntryInfo(entry, pMethod, pUncompLen, pCompLen, pOffset,
-            pModWhen, pCrc32);
-}
-
-bool ZipFileCRO_uncompressEntry(ZipFileCRO zipToken, ZipEntryRO entryToken, int fd) {
-    ZipFileRO* zip = (ZipFileRO*)zipToken;
-    ZipEntryRO entry = (ZipEntryRO)entryToken;
-    return zip->uncompressEntry(entry, fd);
-}
diff --git a/libs/utils/ZipFileRO.cpp b/libs/utils/ZipFileRO.cpp
deleted file mode 100644
index a1bfedb..0000000
--- a/libs/utils/ZipFileRO.cpp
+++ /dev/null
@@ -1,931 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Read-only access to Zip archives, with minimal heap allocation.
-//
-#define LOG_TAG "zipro"
-//#define LOG_NDEBUG 0
-#include <utils/Log.h>
-#include <utils/Compat.h>
-#include <utils/ZipFileRO.h>
-#include <utils/misc.h>
-#include <utils/threads.h>
-
-#include <zlib.h>
-
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <assert.h>
-#include <unistd.h>
-
-/*
- * We must open binary files using open(path, ... | O_BINARY) under Windows.
- * Otherwise strange read errors will happen.
- */
-#ifndef O_BINARY
-#  define O_BINARY  0
-#endif
-
-using namespace android;
-
-/*
- * Zip file constants.
- */
-#define kEOCDSignature      0x06054b50
-#define kEOCDLen            22
-#define kEOCDNumEntries     8               // offset to #of entries in file
-#define kEOCDSize           12              // size of the central directory
-#define kEOCDFileOffset     16              // offset to central directory
-
-#define kMaxCommentLen      65535           // longest possible in ushort
-#define kMaxEOCDSearch      (kMaxCommentLen + kEOCDLen)
-
-#define kLFHSignature       0x04034b50
-#define kLFHLen             30              // excluding variable-len fields
-#define kLFHNameLen         26              // offset to filename length
-#define kLFHExtraLen        28              // offset to extra length
-
-#define kCDESignature       0x02014b50
-#define kCDELen             46              // excluding variable-len fields
-#define kCDEMethod          10              // offset to compression method
-#define kCDEModWhen         12              // offset to modification timestamp
-#define kCDECRC             16              // offset to entry CRC
-#define kCDECompLen         20              // offset to compressed length
-#define kCDEUncompLen       24              // offset to uncompressed length
-#define kCDENameLen         28              // offset to filename length
-#define kCDEExtraLen        30              // offset to extra length
-#define kCDECommentLen      32              // offset to comment length
-#define kCDELocalOffset     42              // offset to local hdr
-
-/*
- * The values we return for ZipEntryRO use 0 as an invalid value, so we
- * want to adjust the hash table index by a fixed amount.  Using a large
- * value helps insure that people don't mix & match arguments, e.g. to
- * findEntryByIndex().
- */
-#define kZipEntryAdj        10000
-
-ZipFileRO::~ZipFileRO() {
-    free(mHashTable);
-    if (mDirectoryMap)
-        mDirectoryMap->release();
-    if (mFd >= 0)
-        TEMP_FAILURE_RETRY(close(mFd));
-    if (mFileName)
-        free(mFileName);
-}
-
-/*
- * Convert a ZipEntryRO to a hash table index, verifying that it's in a
- * valid range.
- */
-int ZipFileRO::entryToIndex(const ZipEntryRO entry) const
-{
-    long ent = ((intptr_t) entry) - kZipEntryAdj;
-    if (ent < 0 || ent >= mHashTableSize || mHashTable[ent].name == NULL) {
-        ALOGW("Invalid ZipEntryRO %p (%ld)\n", entry, ent);
-        return -1;
-    }
-    return ent;
-}
-
-
-/*
- * Open the specified file read-only.  We memory-map the entire thing and
- * close the file before returning.
- */
-status_t ZipFileRO::open(const char* zipFileName)
-{
-    int fd = -1;
-
-    assert(mDirectoryMap == NULL);
-
-    /*
-     * Open and map the specified file.
-     */
-    fd = TEMP_FAILURE_RETRY(::open(zipFileName, O_RDONLY | O_BINARY));
-    if (fd < 0) {
-        ALOGW("Unable to open zip '%s': %s\n", zipFileName, strerror(errno));
-        return NAME_NOT_FOUND;
-    }
-
-    mFileLength = lseek64(fd, 0, SEEK_END);
-    if (mFileLength < kEOCDLen) {
-        TEMP_FAILURE_RETRY(close(fd));
-        return UNKNOWN_ERROR;
-    }
-
-    if (mFileName != NULL) {
-        free(mFileName);
-    }
-    mFileName = strdup(zipFileName);
-
-    mFd = fd;
-
-    /*
-     * Find the Central Directory and store its size and number of entries.
-     */
-    if (!mapCentralDirectory()) {
-        goto bail;
-    }
-
-    /*
-     * Verify Central Directory and create data structures for fast access.
-     */
-    if (!parseZipArchive()) {
-        goto bail;
-    }
-
-    return OK;
-
-bail:
-    free(mFileName);
-    mFileName = NULL;
-    TEMP_FAILURE_RETRY(close(fd));
-    return UNKNOWN_ERROR;
-}
-
-/*
- * Parse the Zip archive, verifying its contents and initializing internal
- * data structures.
- */
-bool ZipFileRO::mapCentralDirectory(void)
-{
-    ssize_t readAmount = kMaxEOCDSearch;
-    if (readAmount > (ssize_t) mFileLength)
-        readAmount = mFileLength;
-
-    unsigned char* scanBuf = (unsigned char*) malloc(readAmount);
-    if (scanBuf == NULL) {
-        ALOGW("couldn't allocate scanBuf: %s", strerror(errno));
-        free(scanBuf);
-        return false;
-    }
-
-    /*
-     * Make sure this is a Zip archive.
-     */
-    if (lseek64(mFd, 0, SEEK_SET) != 0) {
-        ALOGW("seek to start failed: %s", strerror(errno));
-        free(scanBuf);
-        return false;
-    }
-
-    ssize_t actual = TEMP_FAILURE_RETRY(read(mFd, scanBuf, sizeof(int32_t)));
-    if (actual != (ssize_t) sizeof(int32_t)) {
-        ALOGI("couldn't read first signature from zip archive: %s", strerror(errno));
-        free(scanBuf);
-        return false;
-    }
-
-    {
-        unsigned int header = get4LE(scanBuf);
-        if (header == kEOCDSignature) {
-            ALOGI("Found Zip archive, but it looks empty\n");
-            free(scanBuf);
-            return false;
-        } else if (header != kLFHSignature) {
-            ALOGV("Not a Zip archive (found 0x%08x)\n", header);
-            free(scanBuf);
-            return false;
-        }
-    }
-
-    /*
-     * Perform the traditional EOCD snipe hunt.
-     *
-     * We're searching for the End of Central Directory magic number,
-     * which appears at the start of the EOCD block.  It's followed by
-     * 18 bytes of EOCD stuff and up to 64KB of archive comment.  We
-     * need to read the last part of the file into a buffer, dig through
-     * it to find the magic number, parse some values out, and use those
-     * to determine the extent of the CD.
-     *
-     * We start by pulling in the last part of the file.
-     */
-    off64_t searchStart = mFileLength - readAmount;
-
-    if (lseek64(mFd, searchStart, SEEK_SET) != searchStart) {
-        ALOGW("seek %ld failed: %s\n",  (long) searchStart, strerror(errno));
-        free(scanBuf);
-        return false;
-    }
-    actual = TEMP_FAILURE_RETRY(read(mFd, scanBuf, readAmount));
-    if (actual != (ssize_t) readAmount) {
-        ALOGW("Zip: read " ZD ", expected " ZD ". Failed: %s\n",
-            (ZD_TYPE) actual, (ZD_TYPE) readAmount, strerror(errno));
-        free(scanBuf);
-        return false;
-    }
-
-    /*
-     * Scan backward for the EOCD magic.  In an archive without a trailing
-     * comment, we'll find it on the first try.  (We may want to consider
-     * doing an initial minimal read; if we don't find it, retry with a
-     * second read as above.)
-     */
-    int i;
-    for (i = readAmount - kEOCDLen; i >= 0; i--) {
-        if (scanBuf[i] == 0x50 && get4LE(&scanBuf[i]) == kEOCDSignature) {
-            ALOGV("+++ Found EOCD at buf+%d\n", i);
-            break;
-        }
-    }
-    if (i < 0) {
-        ALOGD("Zip: EOCD not found, %s is not zip\n", mFileName);
-        free(scanBuf);
-        return false;
-    }
-
-    off64_t eocdOffset = searchStart + i;
-    const unsigned char* eocdPtr = scanBuf + i;
-
-    assert(eocdOffset < mFileLength);
-
-    /*
-     * Grab the CD offset and size, and the number of entries in the
-     * archive. After that, we can release our EOCD hunt buffer.
-     */
-    unsigned int numEntries = get2LE(eocdPtr + kEOCDNumEntries);
-    unsigned int dirSize = get4LE(eocdPtr + kEOCDSize);
-    unsigned int dirOffset = get4LE(eocdPtr + kEOCDFileOffset);
-    free(scanBuf);
-
-    // Verify that they look reasonable.
-    if ((long long) dirOffset + (long long) dirSize > (long long) eocdOffset) {
-        ALOGW("bad offsets (dir %ld, size %u, eocd %ld)\n",
-            (long) dirOffset, dirSize, (long) eocdOffset);
-        return false;
-    }
-    if (numEntries == 0) {
-        ALOGW("empty archive?\n");
-        return false;
-    }
-
-    ALOGV("+++ numEntries=%d dirSize=%d dirOffset=%d\n",
-        numEntries, dirSize, dirOffset);
-
-    mDirectoryMap = new FileMap();
-    if (mDirectoryMap == NULL) {
-        ALOGW("Unable to create directory map: %s", strerror(errno));
-        return false;
-    }
-
-    if (!mDirectoryMap->create(mFileName, mFd, dirOffset, dirSize, true)) {
-        ALOGW("Unable to map '%s' (" ZD " to " ZD "): %s\n", mFileName,
-                (ZD_TYPE) dirOffset, (ZD_TYPE) (dirOffset + dirSize), strerror(errno));
-        return false;
-    }
-
-    mNumEntries = numEntries;
-    mDirectoryOffset = dirOffset;
-
-    return true;
-}
-
-
-/*
- * Round up to the next highest power of 2.
- *
- * Found on http://graphics.stanford.edu/~seander/bithacks.html.
- */
-static unsigned int roundUpPower2(unsigned int val)
-{
-    val--;
-    val |= val >> 1;
-    val |= val >> 2;
-    val |= val >> 4;
-    val |= val >> 8;
-    val |= val >> 16;
-    val++;
-
-    return val;
-}
-
-bool ZipFileRO::parseZipArchive(void)
-{
-    bool result = false;
-    const unsigned char* cdPtr = (const unsigned char*) mDirectoryMap->getDataPtr();
-    size_t cdLength = mDirectoryMap->getDataLength();
-    int numEntries = mNumEntries;
-
-    /*
-     * Create hash table.  We have a minimum 75% load factor, possibly as
-     * low as 50% after we round off to a power of 2.
-     */
-    mHashTableSize = roundUpPower2(1 + (numEntries * 4) / 3);
-    mHashTable = (HashEntry*) calloc(mHashTableSize, sizeof(HashEntry));
-
-    /*
-     * Walk through the central directory, adding entries to the hash
-     * table.
-     */
-    const unsigned char* ptr = cdPtr;
-    for (int i = 0; i < numEntries; i++) {
-        if (get4LE(ptr) != kCDESignature) {
-            ALOGW("Missed a central dir sig (at %d)\n", i);
-            goto bail;
-        }
-        if (ptr + kCDELen > cdPtr + cdLength) {
-            ALOGW("Ran off the end (at %d)\n", i);
-            goto bail;
-        }
-
-        long localHdrOffset = (long) get4LE(ptr + kCDELocalOffset);
-        if (localHdrOffset >= mDirectoryOffset) {
-            ALOGW("bad LFH offset %ld at entry %d\n", localHdrOffset, i);
-            goto bail;
-        }
-
-        unsigned int fileNameLen, extraLen, commentLen, hash;
-
-        fileNameLen = get2LE(ptr + kCDENameLen);
-        extraLen = get2LE(ptr + kCDEExtraLen);
-        commentLen = get2LE(ptr + kCDECommentLen);
-
-        /* add the CDE filename to the hash table */
-        hash = computeHash((const char*)ptr + kCDELen, fileNameLen);
-        addToHash((const char*)ptr + kCDELen, fileNameLen, hash);
-
-        ptr += kCDELen + fileNameLen + extraLen + commentLen;
-        if ((size_t)(ptr - cdPtr) > cdLength) {
-            ALOGW("bad CD advance (%d vs " ZD ") at entry %d\n",
-                (int) (ptr - cdPtr), (ZD_TYPE) cdLength, i);
-            goto bail;
-        }
-    }
-    ALOGV("+++ zip good scan %d entries\n", numEntries);
-    result = true;
-
-bail:
-    return result;
-}
-
-/*
- * Simple string hash function for non-null-terminated strings.
- */
-/*static*/ unsigned int ZipFileRO::computeHash(const char* str, int len)
-{
-    unsigned int hash = 0;
-
-    while (len--)
-        hash = hash * 31 + *str++;
-
-    return hash;
-}
-
-/*
- * Add a new entry to the hash table.
- */
-void ZipFileRO::addToHash(const char* str, int strLen, unsigned int hash)
-{
-    int ent = hash & (mHashTableSize-1);
-
-    /*
-     * We over-allocate the table, so we're guaranteed to find an empty slot.
-     */
-    while (mHashTable[ent].name != NULL)
-        ent = (ent + 1) & (mHashTableSize-1);
-
-    mHashTable[ent].name = str;
-    mHashTable[ent].nameLen = strLen;
-}
-
-/*
- * Find a matching entry.
- *
- * Returns NULL if not found.
- */
-ZipEntryRO ZipFileRO::findEntryByName(const char* fileName) const
-{
-    /*
-     * If the ZipFileRO instance is not initialized, the entry number will
-     * end up being garbage since mHashTableSize is -1.
-     */
-    if (mHashTableSize <= 0) {
-        return NULL;
-    }
-
-    int nameLen = strlen(fileName);
-    unsigned int hash = computeHash(fileName, nameLen);
-    int ent = hash & (mHashTableSize-1);
-
-    while (mHashTable[ent].name != NULL) {
-        if (mHashTable[ent].nameLen == nameLen &&
-            memcmp(mHashTable[ent].name, fileName, nameLen) == 0)
-        {
-            /* match */
-            return (ZipEntryRO)(long)(ent + kZipEntryAdj);
-        }
-
-        ent = (ent + 1) & (mHashTableSize-1);
-    }
-
-    return NULL;
-}
-
-/*
- * Find the Nth entry.
- *
- * This currently involves walking through the sparse hash table, counting
- * non-empty entries.  If we need to speed this up we can either allocate
- * a parallel lookup table or (perhaps better) provide an iterator interface.
- */
-ZipEntryRO ZipFileRO::findEntryByIndex(int idx) const
-{
-    if (idx < 0 || idx >= mNumEntries) {
-        ALOGW("Invalid index %d\n", idx);
-        return NULL;
-    }
-
-    for (int ent = 0; ent < mHashTableSize; ent++) {
-        if (mHashTable[ent].name != NULL) {
-            if (idx-- == 0)
-                return (ZipEntryRO) (intptr_t)(ent + kZipEntryAdj);
-        }
-    }
-
-    return NULL;
-}
-
-/*
- * Get the useful fields from the zip entry.
- *
- * Returns "false" if the offsets to the fields or the contents of the fields
- * appear to be bogus.
- */
-bool ZipFileRO::getEntryInfo(ZipEntryRO entry, int* pMethod, size_t* pUncompLen,
-    size_t* pCompLen, off64_t* pOffset, long* pModWhen, long* pCrc32) const
-{
-    bool ret = false;
-
-    const int ent = entryToIndex(entry);
-    if (ent < 0)
-        return false;
-
-    HashEntry hashEntry = mHashTable[ent];
-
-    /*
-     * Recover the start of the central directory entry from the filename
-     * pointer.  The filename is the first entry past the fixed-size data,
-     * so we can just subtract back from that.
-     */
-    const unsigned char* ptr = (const unsigned char*) hashEntry.name;
-    off64_t cdOffset = mDirectoryOffset;
-
-    ptr -= kCDELen;
-
-    int method = get2LE(ptr + kCDEMethod);
-    if (pMethod != NULL)
-        *pMethod = method;
-
-    if (pModWhen != NULL)
-        *pModWhen = get4LE(ptr + kCDEModWhen);
-    if (pCrc32 != NULL)
-        *pCrc32 = get4LE(ptr + kCDECRC);
-
-    size_t compLen = get4LE(ptr + kCDECompLen);
-    if (pCompLen != NULL)
-        *pCompLen = compLen;
-    size_t uncompLen = get4LE(ptr + kCDEUncompLen);
-    if (pUncompLen != NULL)
-        *pUncompLen = uncompLen;
-
-    /*
-     * If requested, determine the offset of the start of the data.  All we
-     * have is the offset to the Local File Header, which is variable size,
-     * so we have to read the contents of the struct to figure out where
-     * the actual data starts.
-     *
-     * We also need to make sure that the lengths are not so large that
-     * somebody trying to map the compressed or uncompressed data runs
-     * off the end of the mapped region.
-     *
-     * Note we don't verify compLen/uncompLen if they don't request the
-     * dataOffset, because dataOffset is expensive to determine.  However,
-     * if they don't have the file offset, they're not likely to be doing
-     * anything with the contents.
-     */
-    if (pOffset != NULL) {
-        long localHdrOffset = get4LE(ptr + kCDELocalOffset);
-        if (localHdrOffset + kLFHLen >= cdOffset) {
-            ALOGE("ERROR: bad local hdr offset in zip\n");
-            return false;
-        }
-
-        unsigned char lfhBuf[kLFHLen];
-
-#ifdef HAVE_PREAD
-        /*
-         * This file descriptor might be from zygote's preloaded assets,
-         * so we need to do an pread64() instead of a lseek64() + read() to
-         * guarantee atomicity across the processes with the shared file
-         * descriptors.
-         */
-        ssize_t actual =
-                TEMP_FAILURE_RETRY(pread64(mFd, lfhBuf, sizeof(lfhBuf), localHdrOffset));
-
-        if (actual != sizeof(lfhBuf)) {
-            ALOGW("failed reading lfh from offset %ld\n", localHdrOffset);
-            return false;
-        }
-
-        if (get4LE(lfhBuf) != kLFHSignature) {
-            ALOGW("didn't find signature at start of lfh; wanted: offset=%ld data=0x%08x; "
-                    "got: data=0x%08lx\n",
-                    localHdrOffset, kLFHSignature, get4LE(lfhBuf));
-            return false;
-        }
-#else /* HAVE_PREAD */
-        /*
-         * For hosts don't have pread64() we cannot guarantee atomic reads from
-         * an offset in a file. Android should never run on those platforms.
-         * File descriptors inherited from a fork() share file offsets and
-         * there would be nothing to protect from two different processes
-         * calling lseek64() concurrently.
-         */
-
-        {
-            AutoMutex _l(mFdLock);
-
-            if (lseek64(mFd, localHdrOffset, SEEK_SET) != localHdrOffset) {
-                ALOGW("failed seeking to lfh at offset %ld\n", localHdrOffset);
-                return false;
-            }
-
-            ssize_t actual =
-                    TEMP_FAILURE_RETRY(read(mFd, lfhBuf, sizeof(lfhBuf)));
-            if (actual != sizeof(lfhBuf)) {
-                ALOGW("failed reading lfh from offset %ld\n", localHdrOffset);
-                return false;
-            }
-
-            if (get4LE(lfhBuf) != kLFHSignature) {
-                off64_t actualOffset = lseek64(mFd, 0, SEEK_CUR);
-                ALOGW("didn't find signature at start of lfh; wanted: offset=%ld data=0x%08x; "
-                        "got: offset=" ZD " data=0x%08lx\n",
-                        localHdrOffset, kLFHSignature, (ZD_TYPE) actualOffset, get4LE(lfhBuf));
-                return false;
-            }
-        }
-#endif /* HAVE_PREAD */
-
-        off64_t dataOffset = localHdrOffset + kLFHLen
-            + get2LE(lfhBuf + kLFHNameLen) + get2LE(lfhBuf + kLFHExtraLen);
-        if (dataOffset >= cdOffset) {
-            ALOGW("bad data offset %ld in zip\n", (long) dataOffset);
-            return false;
-        }
-
-        /* check lengths */
-        if ((off64_t)(dataOffset + compLen) > cdOffset) {
-            ALOGW("bad compressed length in zip (%ld + " ZD " > %ld)\n",
-                (long) dataOffset, (ZD_TYPE) compLen, (long) cdOffset);
-            return false;
-        }
-
-        if (method == kCompressStored &&
-            (off64_t)(dataOffset + uncompLen) > cdOffset)
-        {
-            ALOGE("ERROR: bad uncompressed length in zip (%ld + " ZD " > %ld)\n",
-                (long) dataOffset, (ZD_TYPE) uncompLen, (long) cdOffset);
-            return false;
-        }
-
-        *pOffset = dataOffset;
-    }
-
-    return true;
-}
-
-/*
- * Copy the entry's filename to the buffer.
- */
-int ZipFileRO::getEntryFileName(ZipEntryRO entry, char* buffer, int bufLen)
-    const
-{
-    int ent = entryToIndex(entry);
-    if (ent < 0)
-        return -1;
-
-    int nameLen = mHashTable[ent].nameLen;
-    if (bufLen < nameLen+1)
-        return nameLen+1;
-
-    memcpy(buffer, mHashTable[ent].name, nameLen);
-    buffer[nameLen] = '\0';
-    return 0;
-}
-
-/*
- * Create a new FileMap object that spans the data in "entry".
- */
-FileMap* ZipFileRO::createEntryFileMap(ZipEntryRO entry) const
-{
-    /*
-     * TODO: the efficient way to do this is to modify FileMap to allow
-     * sub-regions of a file to be mapped.  A reference-counting scheme
-     * can manage the base memory mapping.  For now, we just create a brand
-     * new mapping off of the Zip archive file descriptor.
-     */
-
-    FileMap* newMap;
-    size_t compLen;
-    off64_t offset;
-
-    if (!getEntryInfo(entry, NULL, NULL, &compLen, &offset, NULL, NULL))
-        return NULL;
-
-    newMap = new FileMap();
-    if (!newMap->create(mFileName, mFd, offset, compLen, true)) {
-        newMap->release();
-        return NULL;
-    }
-
-    return newMap;
-}
-
-/*
- * Uncompress an entry, in its entirety, into the provided output buffer.
- *
- * This doesn't verify the data's CRC, which might be useful for
- * uncompressed data.  The caller should be able to manage it.
- */
-bool ZipFileRO::uncompressEntry(ZipEntryRO entry, void* buffer) const
-{
-    const size_t kSequentialMin = 32768;
-    bool result = false;
-    int ent = entryToIndex(entry);
-    if (ent < 0)
-        return -1;
-
-    int method;
-    size_t uncompLen, compLen;
-    off64_t offset;
-    const unsigned char* ptr;
-
-    getEntryInfo(entry, &method, &uncompLen, &compLen, &offset, NULL, NULL);
-
-    FileMap* file = createEntryFileMap(entry);
-    if (file == NULL) {
-        goto bail;
-    }
-
-    ptr = (const unsigned char*) file->getDataPtr();
-
-    /*
-     * Experiment with madvise hint.  When we want to uncompress a file,
-     * we pull some stuff out of the central dir entry and then hit a
-     * bunch of compressed or uncompressed data sequentially.  The CDE
-     * visit will cause a limited amount of read-ahead because it's at
-     * the end of the file.  We could end up doing lots of extra disk
-     * access if the file we're prying open is small.  Bottom line is we
-     * probably don't want to turn MADV_SEQUENTIAL on and leave it on.
-     *
-     * So, if the compressed size of the file is above a certain minimum
-     * size, temporarily boost the read-ahead in the hope that the extra
-     * pair of system calls are negated by a reduction in page faults.
-     */
-    if (compLen > kSequentialMin)
-        file->advise(FileMap::SEQUENTIAL);
-
-    if (method == kCompressStored) {
-        memcpy(buffer, ptr, uncompLen);
-    } else {
-        if (!inflateBuffer(buffer, ptr, uncompLen, compLen))
-            goto unmap;
-    }
-
-    if (compLen > kSequentialMin)
-        file->advise(FileMap::NORMAL);
-
-    result = true;
-
-unmap:
-    file->release();
-bail:
-    return result;
-}
-
-/*
- * Uncompress an entry, in its entirety, to an open file descriptor.
- *
- * This doesn't verify the data's CRC, but probably should.
- */
-bool ZipFileRO::uncompressEntry(ZipEntryRO entry, int fd) const
-{
-    bool result = false;
-    int ent = entryToIndex(entry);
-    if (ent < 0)
-        return -1;
-
-    int method;
-    size_t uncompLen, compLen;
-    off64_t offset;
-    const unsigned char* ptr;
-
-    getEntryInfo(entry, &method, &uncompLen, &compLen, &offset, NULL, NULL);
-
-    FileMap* file = createEntryFileMap(entry);
-    if (file == NULL) {
-        goto bail;
-    }
-
-    ptr = (const unsigned char*) file->getDataPtr();
-
-    if (method == kCompressStored) {
-        ssize_t actual = TEMP_FAILURE_RETRY(write(fd, ptr, uncompLen));
-        if (actual < 0) {
-            ALOGE("Write failed: %s\n", strerror(errno));
-            goto unmap;
-        } else if ((size_t) actual != uncompLen) {
-            ALOGE("Partial write during uncompress (" ZD " of " ZD ")\n",
-                (ZD_TYPE) actual, (ZD_TYPE) uncompLen);
-            goto unmap;
-        } else {
-            ALOGI("+++ successful write\n");
-        }
-    } else {
-        if (!inflateBuffer(fd, ptr, uncompLen, compLen))
-            goto unmap;
-    }
-
-    result = true;
-
-unmap:
-    file->release();
-bail:
-    return result;
-}
-
-/*
- * Uncompress "deflate" data from one buffer to another.
- */
-/*static*/ bool ZipFileRO::inflateBuffer(void* outBuf, const void* inBuf,
-    size_t uncompLen, size_t compLen)
-{
-    bool result = false;
-    z_stream zstream;
-    int zerr;
-
-    /*
-     * Initialize the zlib stream struct.
-     */
-    memset(&zstream, 0, sizeof(zstream));
-    zstream.zalloc = Z_NULL;
-    zstream.zfree = Z_NULL;
-    zstream.opaque = Z_NULL;
-    zstream.next_in = (Bytef*)inBuf;
-    zstream.avail_in = compLen;
-    zstream.next_out = (Bytef*) outBuf;
-    zstream.avail_out = uncompLen;
-    zstream.data_type = Z_UNKNOWN;
-
-    /*
-     * Use the undocumented "negative window bits" feature to tell zlib
-     * that there's no zlib header waiting for it.
-     */
-    zerr = inflateInit2(&zstream, -MAX_WBITS);
-    if (zerr != Z_OK) {
-        if (zerr == Z_VERSION_ERROR) {
-            ALOGE("Installed zlib is not compatible with linked version (%s)\n",
-                ZLIB_VERSION);
-        } else {
-            ALOGE("Call to inflateInit2 failed (zerr=%d)\n", zerr);
-        }
-        goto bail;
-    }
-
-    /*
-     * Expand data.
-     */
-    zerr = inflate(&zstream, Z_FINISH);
-    if (zerr != Z_STREAM_END) {
-        ALOGW("Zip inflate failed, zerr=%d (nIn=%p aIn=%u nOut=%p aOut=%u)\n",
-            zerr, zstream.next_in, zstream.avail_in,
-            zstream.next_out, zstream.avail_out);
-        goto z_bail;
-    }
-
-    /* paranoia */
-    if (zstream.total_out != uncompLen) {
-        ALOGW("Size mismatch on inflated file (%ld vs " ZD ")\n",
-            zstream.total_out, (ZD_TYPE) uncompLen);
-        goto z_bail;
-    }
-
-    result = true;
-
-z_bail:
-    inflateEnd(&zstream);        /* free up any allocated structures */
-
-bail:
-    return result;
-}
-
-/*
- * Uncompress "deflate" data from one buffer to an open file descriptor.
- */
-/*static*/ bool ZipFileRO::inflateBuffer(int fd, const void* inBuf,
-    size_t uncompLen, size_t compLen)
-{
-    bool result = false;
-    const size_t kWriteBufSize = 32768;
-    unsigned char writeBuf[kWriteBufSize];
-    z_stream zstream;
-    int zerr;
-
-    /*
-     * Initialize the zlib stream struct.
-     */
-    memset(&zstream, 0, sizeof(zstream));
-    zstream.zalloc = Z_NULL;
-    zstream.zfree = Z_NULL;
-    zstream.opaque = Z_NULL;
-    zstream.next_in = (Bytef*)inBuf;
-    zstream.avail_in = compLen;
-    zstream.next_out = (Bytef*) writeBuf;
-    zstream.avail_out = sizeof(writeBuf);
-    zstream.data_type = Z_UNKNOWN;
-
-    /*
-     * Use the undocumented "negative window bits" feature to tell zlib
-     * that there's no zlib header waiting for it.
-     */
-    zerr = inflateInit2(&zstream, -MAX_WBITS);
-    if (zerr != Z_OK) {
-        if (zerr == Z_VERSION_ERROR) {
-            ALOGE("Installed zlib is not compatible with linked version (%s)\n",
-                ZLIB_VERSION);
-        } else {
-            ALOGE("Call to inflateInit2 failed (zerr=%d)\n", zerr);
-        }
-        goto bail;
-    }
-
-    /*
-     * Loop while we have more to do.
-     */
-    do {
-        /*
-         * Expand data.
-         */
-        zerr = inflate(&zstream, Z_NO_FLUSH);
-        if (zerr != Z_OK && zerr != Z_STREAM_END) {
-            ALOGW("zlib inflate: zerr=%d (nIn=%p aIn=%u nOut=%p aOut=%u)\n",
-                zerr, zstream.next_in, zstream.avail_in,
-                zstream.next_out, zstream.avail_out);
-            goto z_bail;
-        }
-
-        /* write when we're full or when we're done */
-        if (zstream.avail_out == 0 ||
-            (zerr == Z_STREAM_END && zstream.avail_out != sizeof(writeBuf)))
-        {
-            long writeSize = zstream.next_out - writeBuf;
-            int cc = TEMP_FAILURE_RETRY(write(fd, writeBuf, writeSize));
-            if (cc < 0) {
-                ALOGW("write failed in inflate: %s", strerror(errno));
-                goto z_bail;
-            } else if (cc != (int) writeSize) {
-                ALOGW("write failed in inflate (%d vs %ld)", cc, writeSize);
-                goto z_bail;
-            }
-
-            zstream.next_out = writeBuf;
-            zstream.avail_out = sizeof(writeBuf);
-        }
-    } while (zerr == Z_OK);
-
-    assert(zerr == Z_STREAM_END);       /* other errors should've been caught */
-
-    /* paranoia */
-    if (zstream.total_out != uncompLen) {
-        ALOGW("Size mismatch on inflated file (%ld vs " ZD ")\n",
-            zstream.total_out, (ZD_TYPE) uncompLen);
-        goto z_bail;
-    }
-
-    result = true;
-
-z_bail:
-    inflateEnd(&zstream);        /* free up any allocated structures */
-
-bail:
-    return result;
-}
diff --git a/libs/utils/ZipUtils.cpp b/libs/utils/ZipUtils.cpp
deleted file mode 100644
index a43bbb0..0000000
--- a/libs/utils/ZipUtils.cpp
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//
-// Misc zip/gzip utility functions.
-//
-
-#define LOG_TAG "ziputil"
-
-#include <utils/Log.h>
-#include <utils/Compat.h>
-#include <utils/ZipUtils.h>
-#include <utils/ZipFileRO.h>
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#include <zlib.h>
-
-using namespace android;
-
-/*
- * Utility function that expands zip/gzip "deflate" compressed data
- * into a buffer.
- *
- * "fd" is an open file positioned at the start of the "deflate" data
- * "buf" must hold at least "uncompressedLen" bytes.
- */
-/*static*/ bool ZipUtils::inflateToBuffer(int fd, void* buf,
-    long uncompressedLen, long compressedLen)
-{
-    bool result = false;
-	const unsigned long kReadBufSize = 32768;
-	unsigned char* readBuf = NULL;
-    z_stream zstream;
-    int zerr;
-    unsigned long compRemaining;
-
-    assert(uncompressedLen >= 0);
-    assert(compressedLen >= 0);
-
-	readBuf = new unsigned char[kReadBufSize];
-	if (readBuf == NULL)
-        goto bail;
-    compRemaining = compressedLen;
-
-    /*
-     * Initialize the zlib stream.
-     */
-	memset(&zstream, 0, sizeof(zstream));
-    zstream.zalloc = Z_NULL;
-    zstream.zfree = Z_NULL;
-    zstream.opaque = Z_NULL;
-    zstream.next_in = NULL;
-    zstream.avail_in = 0;
-    zstream.next_out = (Bytef*) buf;
-    zstream.avail_out = uncompressedLen;
-    zstream.data_type = Z_UNKNOWN;
-
-	/*
-	 * Use the undocumented "negative window bits" feature to tell zlib
-	 * that there's no zlib header waiting for it.
-	 */
-    zerr = inflateInit2(&zstream, -MAX_WBITS);
-    if (zerr != Z_OK) {
-        if (zerr == Z_VERSION_ERROR) {
-            ALOGE("Installed zlib is not compatible with linked version (%s)\n",
-                ZLIB_VERSION);
-        } else {
-            ALOGE("Call to inflateInit2 failed (zerr=%d)\n", zerr);
-        }
-        goto bail;
-    }
-
-    /*
-     * Loop while we have data.
-     */
-    do {
-        unsigned long getSize;
-
-        /* read as much as we can */
-        if (zstream.avail_in == 0) {
-            getSize = (compRemaining > kReadBufSize) ?
-                        kReadBufSize : compRemaining;
-            ALOGV("+++ reading %ld bytes (%ld left)\n",
-                getSize, compRemaining);
-
-            int cc = TEMP_FAILURE_RETRY(read(fd, readBuf, getSize));
-            if (cc < 0) {
-                ALOGW("inflate read failed: %s", strerror(errno));
-            } else if (cc != (int) getSize) {
-                ALOGW("inflate read failed (%d vs %ld)", cc, getSize);
-                goto z_bail;
-            }
-
-            compRemaining -= getSize;
-
-            zstream.next_in = readBuf;
-            zstream.avail_in = getSize;
-        }
-
-        /* uncompress the data */
-        zerr = inflate(&zstream, Z_NO_FLUSH);
-        if (zerr != Z_OK && zerr != Z_STREAM_END) {
-            ALOGD("zlib inflate call failed (zerr=%d)\n", zerr);
-            goto z_bail;
-        }
-
-		/* output buffer holds all, so no need to write the output */
-    } while (zerr == Z_OK);
-
-    assert(zerr == Z_STREAM_END);       /* other errors should've been caught */
-
-    if ((long) zstream.total_out != uncompressedLen) {
-        ALOGW("Size mismatch on inflated file (%ld vs %ld)\n",
-            zstream.total_out, uncompressedLen);
-        goto z_bail;
-    }
-
-    // success!
-    result = true;
-
-z_bail:
-    inflateEnd(&zstream);        /* free up any allocated structures */
-
-bail:
-	delete[] readBuf;
-    return result;
-}
-
-/*
- * Utility function that expands zip/gzip "deflate" compressed data
- * into a buffer.
- *
- * (This is a clone of the previous function, but it takes a FILE* instead
- * of an fd.  We could pass fileno(fd) to the above, but we can run into
- * trouble when "fp" has a different notion of what fd's file position is.)
- *
- * "fp" is an open file positioned at the start of the "deflate" data
- * "buf" must hold at least "uncompressedLen" bytes.
- */
-/*static*/ bool ZipUtils::inflateToBuffer(FILE* fp, void* buf,
-    long uncompressedLen, long compressedLen)
-{
-    bool result = false;
-	const unsigned long kReadBufSize = 32768;
-	unsigned char* readBuf = NULL;
-    z_stream zstream;
-    int zerr;
-    unsigned long compRemaining;
-
-    assert(uncompressedLen >= 0);
-    assert(compressedLen >= 0);
-
-	readBuf = new unsigned char[kReadBufSize];
-	if (readBuf == NULL)
-        goto bail;
-    compRemaining = compressedLen;
-
-    /*
-     * Initialize the zlib stream.
-     */
-	memset(&zstream, 0, sizeof(zstream));
-    zstream.zalloc = Z_NULL;
-    zstream.zfree = Z_NULL;
-    zstream.opaque = Z_NULL;
-    zstream.next_in = NULL;
-    zstream.avail_in = 0;
-    zstream.next_out = (Bytef*) buf;
-    zstream.avail_out = uncompressedLen;
-    zstream.data_type = Z_UNKNOWN;
-
-	/*
-	 * Use the undocumented "negative window bits" feature to tell zlib
-	 * that there's no zlib header waiting for it.
-	 */
-    zerr = inflateInit2(&zstream, -MAX_WBITS);
-    if (zerr != Z_OK) {
-        if (zerr == Z_VERSION_ERROR) {
-            ALOGE("Installed zlib is not compatible with linked version (%s)\n",
-                ZLIB_VERSION);
-        } else {
-            ALOGE("Call to inflateInit2 failed (zerr=%d)\n", zerr);
-        }
-        goto bail;
-    }
-
-    /*
-     * Loop while we have data.
-     */
-    do {
-        unsigned long getSize;
-
-        /* read as much as we can */
-        if (zstream.avail_in == 0) {
-            getSize = (compRemaining > kReadBufSize) ?
-                        kReadBufSize : compRemaining;
-            ALOGV("+++ reading %ld bytes (%ld left)\n",
-                getSize, compRemaining);
-
-            int cc = fread(readBuf, 1, getSize, fp);
-            if (cc != (int) getSize) {
-                ALOGD("inflate read failed (%d vs %ld)\n",
-                    cc, getSize);
-                goto z_bail;
-            }
-
-            compRemaining -= getSize;
-
-            zstream.next_in = readBuf;
-            zstream.avail_in = getSize;
-        }
-
-        /* uncompress the data */
-        zerr = inflate(&zstream, Z_NO_FLUSH);
-        if (zerr != Z_OK && zerr != Z_STREAM_END) {
-            ALOGD("zlib inflate call failed (zerr=%d)\n", zerr);
-            goto z_bail;
-        }
-
-		/* output buffer holds all, so no need to write the output */
-    } while (zerr == Z_OK);
-
-    assert(zerr == Z_STREAM_END);       /* other errors should've been caught */
-
-    if ((long) zstream.total_out != uncompressedLen) {
-        ALOGW("Size mismatch on inflated file (%ld vs %ld)\n",
-            zstream.total_out, uncompressedLen);
-        goto z_bail;
-    }
-
-    // success!
-    result = true;
-
-z_bail:
-    inflateEnd(&zstream);        /* free up any allocated structures */
-
-bail:
-	delete[] readBuf;
-    return result;
-}
-
-/*
- * Look at the contents of a gzip archive.  We want to know where the
- * data starts, and how long it will be after it is uncompressed.
- *
- * We expect to find the CRC and length as the last 8 bytes on the file.
- * This is a pretty reasonable thing to expect for locally-compressed
- * files, but there's a small chance that some extra padding got thrown
- * on (the man page talks about compressed data written to tape).  We
- * don't currently deal with that here.  If "gzip -l" whines, we're going
- * to fail too.
- *
- * On exit, "fp" is pointing at the start of the compressed data.
- */
-/*static*/ bool ZipUtils::examineGzip(FILE* fp, int* pCompressionMethod,
-    long* pUncompressedLen, long* pCompressedLen, unsigned long* pCRC32)
-{
-    enum {  // flags
-        FTEXT       = 0x01,
-        FHCRC       = 0x02,
-        FEXTRA      = 0x04,
-        FNAME       = 0x08,
-        FCOMMENT    = 0x10,
-    };
-    int ic;
-    int method, flags;
-    int i;
-
-    ic = getc(fp);
-    if (ic != 0x1f || getc(fp) != 0x8b)
-        return false;       // not gzip
-    method = getc(fp);
-    flags = getc(fp);
-
-    /* quick sanity checks */
-    if (method == EOF || flags == EOF)
-        return false;
-    if (method != ZipFileRO::kCompressDeflated)
-        return false;
-
-    /* skip over 4 bytes of mod time, 1 byte XFL, 1 byte OS */
-    for (i = 0; i < 6; i++)
-        (void) getc(fp);
-    /* consume "extra" field, if present */
-    if ((flags & FEXTRA) != 0) {
-        int len;
-
-        len = getc(fp);
-        len |= getc(fp) << 8;
-        while (len-- && getc(fp) != EOF)
-            ;
-    }
-    /* consume filename, if present */
-    if ((flags & FNAME) != 0) {
-        do {
-            ic = getc(fp);
-        } while (ic != 0 && ic != EOF);
-    }
-    /* consume comment, if present */
-    if ((flags & FCOMMENT) != 0) {
-        do {
-            ic = getc(fp);
-        } while (ic != 0 && ic != EOF);
-    }
-    /* consume 16-bit header CRC, if present */
-    if ((flags & FHCRC) != 0) {
-        (void) getc(fp);
-        (void) getc(fp);
-    }
-
-    if (feof(fp) || ferror(fp))
-        return false;
-
-    /* seek to the end; CRC and length are in the last 8 bytes */
-    long curPosn = ftell(fp);
-    unsigned char buf[8];
-    fseek(fp, -8, SEEK_END);
-    *pCompressedLen = ftell(fp) - curPosn;
-
-    if (fread(buf, 1, 8, fp) != 8)
-        return false;
-    /* seek back to start of compressed data */
-    fseek(fp, curPosn, SEEK_SET);
-
-    *pCompressionMethod = method;
-    *pCRC32 = ZipFileRO::get4LE(&buf[0]);
-    *pUncompressedLen = ZipFileRO::get4LE(&buf[4]);
-
-    return true;
-}
diff --git a/libs/utils/misc.cpp b/libs/utils/misc.cpp
index 445a23a..58eb499 100644
--- a/libs/utils/misc.cpp
+++ b/libs/utils/misc.cpp
@@ -25,7 +25,6 @@
 #include <sys/stat.h>
 #include <string.h>
 #include <errno.h>
-#include <assert.h>
 #include <stdio.h>
 
 #if defined(HAVE_PTHREADS)
@@ -38,56 +37,6 @@
 
 namespace android {
 
-/*
- * Get a file's type.
- */
-FileType getFileType(const char* fileName)
-{
-    struct stat sb;
-
-    if (stat(fileName, &sb) < 0) {
-        if (errno == ENOENT || errno == ENOTDIR)
-            return kFileTypeNonexistent;
-        else {
-            fprintf(stderr, "getFileType got errno=%d on '%s'\n",
-                errno, fileName);
-            return kFileTypeUnknown;
-        }
-    } else {
-        if (S_ISREG(sb.st_mode))
-            return kFileTypeRegular;
-        else if (S_ISDIR(sb.st_mode))
-            return kFileTypeDirectory;
-        else if (S_ISCHR(sb.st_mode))
-            return kFileTypeCharDev;
-        else if (S_ISBLK(sb.st_mode))
-            return kFileTypeBlockDev;
-        else if (S_ISFIFO(sb.st_mode))
-            return kFileTypeFifo;
-#ifdef HAVE_SYMLINKS            
-        else if (S_ISLNK(sb.st_mode))
-            return kFileTypeSymlink;
-        else if (S_ISSOCK(sb.st_mode))
-            return kFileTypeSocket;
-#endif            
-        else
-            return kFileTypeUnknown;
-    }
-}
-
-/*
- * Get a file's modification date.
- */
-time_t getFileModDate(const char* fileName)
-{
-    struct stat sb;
-
-    if (stat(fileName, &sb) < 0)
-        return (time_t) -1;
-
-    return sb.st_mtime;
-}
-
 struct sysprop_change_callback_info {
     sysprop_change_callback callback;
     int priority;
diff --git a/libs/utils/tests/Android.mk b/libs/utils/tests/Android.mk
index a2ca9c8..caedaff 100644
--- a/libs/utils/tests/Android.mk
+++ b/libs/utils/tests/Android.mk
@@ -6,12 +6,12 @@
 test_src_files := \
     BasicHashtable_test.cpp \
     BlobCache_test.cpp \
+    BitSet_test.cpp \
     Looper_test.cpp \
     LruCache_test.cpp \
     String8_test.cpp \
     Unicode_test.cpp \
-    Vector_test.cpp \
-    ZipFileRO_test.cpp
+    Vector_test.cpp
 
 shared_libraries := \
     libz \
diff --git a/libs/utils/tests/BitSet_test.cpp b/libs/utils/tests/BitSet_test.cpp
new file mode 100644
index 0000000..752e56d
--- /dev/null
+++ b/libs/utils/tests/BitSet_test.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BitSet_test"
+
+#include <utils/BitSet.h>
+#include <cutils/log.h>
+#include <gtest/gtest.h>
+#include <unistd.h>
+
+namespace android {
+
+class BitSetTest : public testing::Test {
+protected:
+    BitSet32 b1;
+    BitSet32 b2;
+    virtual void TearDown() {
+        b1.clear();
+        b2.clear();
+    }
+};
+
+
+TEST_F(BitSetTest, BitWiseOr) {
+    b1.markBit(2);
+    b2.markBit(4);
+
+    BitSet32 tmp = b1 | b2;
+    EXPECT_EQ(tmp.count(), 2u);
+    EXPECT_TRUE(tmp.hasBit(2) && tmp.hasBit(4));
+    // Check that the operator is symmetric
+    EXPECT_TRUE((b2 | b1) == (b1 | b2));
+
+    b1 |= b2;
+    EXPECT_EQ(b1.count(), 2u);
+    EXPECT_TRUE(b1.hasBit(2) && b1.hasBit(4));
+    EXPECT_TRUE(b2.hasBit(4) && b2.count() == 1u);
+}
+TEST_F(BitSetTest, BitWiseAnd_Disjoint) {
+    b1.markBit(2);
+    b1.markBit(4);
+    b1.markBit(6);
+
+    BitSet32 tmp = b1 & b2;
+    EXPECT_TRUE(tmp.isEmpty());
+    // Check that the operator is symmetric
+    EXPECT_TRUE((b2 & b1) == (b1 & b2));
+
+    b2 &= b1;
+    EXPECT_TRUE(b2.isEmpty());
+    EXPECT_EQ(b1.count(), 3u);
+    EXPECT_TRUE(b1.hasBit(2) && b1.hasBit(4) && b1.hasBit(6));
+}
+
+TEST_F(BitSetTest, BitWiseAnd_NonDisjoint) {
+    b1.markBit(2);
+    b1.markBit(4);
+    b1.markBit(6);
+    b2.markBit(3);
+    b2.markBit(6);
+    b2.markBit(9);
+
+    BitSet32 tmp = b1 & b2;
+    EXPECT_EQ(tmp.count(), 1u);
+    EXPECT_TRUE(tmp.hasBit(6));
+    // Check that the operator is symmetric
+    EXPECT_TRUE((b2 & b1) == (b1 & b2));
+
+    b1 &= b2;
+    EXPECT_EQ(b1.count(), 1u);
+    EXPECT_EQ(b2.count(), 3u);
+    EXPECT_TRUE(b2.hasBit(3) && b2.hasBit(6) && b2.hasBit(9));
+}
+} // namespace android
diff --git a/libs/utils/tests/ZipFileRO_test.cpp b/libs/utils/tests/ZipFileRO_test.cpp
deleted file mode 100644
index 7a1d0bd..0000000
--- a/libs/utils/tests/ZipFileRO_test.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "ZipFileRO_test"
-#include <utils/Log.h>
-#include <utils/ZipFileRO.h>
-
-#include <gtest/gtest.h>
-
-#include <fcntl.h>
-#include <string.h>
-
-namespace android {
-
-class ZipFileROTest : public testing::Test {
-protected:
-    virtual void SetUp() {
-    }
-
-    virtual void TearDown() {
-    }
-};
-
-TEST_F(ZipFileROTest, ZipTimeConvertSuccess) {
-    struct tm t;
-
-    // 2011-06-29 14:40:40
-    long when = 0x3EDD7514;
-
-    ZipFileRO::zipTimeToTimespec(when, &t);
-
-    EXPECT_EQ(2011, t.tm_year + 1900)
-            << "Year was improperly converted.";
-
-    EXPECT_EQ(6, t.tm_mon)
-            << "Month was improperly converted.";
-
-    EXPECT_EQ(29, t.tm_mday)
-            << "Day was improperly converted.";
-
-    EXPECT_EQ(14, t.tm_hour)
-            << "Hour was improperly converted.";
-
-    EXPECT_EQ(40, t.tm_min)
-            << "Minute was improperly converted.";
-
-    EXPECT_EQ(40, t.tm_sec)
-            << "Second was improperly converted.";
-}
-
-}
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index 56550b3..beaa560 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -1,16 +1,16 @@
-/* 
+/*
  ** Copyright 2007, The Android Open Source Project
  **
- ** Licensed under the Apache License, Version 2.0 (the "License"); 
- ** you may not use this file except in compliance with the License. 
- ** You may obtain a copy of the License at 
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
  **
- **     http://www.apache.org/licenses/LICENSE-2.0 
+ **     http://www.apache.org/licenses/LICENSE-2.0
  **
- ** Unless required by applicable law or agreed to in writing, software 
- ** distributed under the License is distributed on an "AS IS" BASIS, 
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
- ** See the License for the specific language governing permissions and 
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
  ** limitations under the License.
  */
 
@@ -21,6 +21,7 @@
 #include <errno.h>
 #include <dlfcn.h>
 #include <limits.h>
+#include <dirent.h>
 
 #include <cutils/log.h>
 #include <cutils/properties.h>
@@ -38,10 +39,26 @@
 
 
 /*
- * EGL drivers are called
- * 
- * /system/lib/egl/lib{[EGL|GLESv1_CM|GLESv2] | GLES}_$TAG.so 
- * 
+ * EGL userspace drivers must be provided either:
+ * - as a single library:
+ *      /vendor/lib/egl/libGLES.so
+ *
+ * - as separate libraries:
+ *      /vendor/lib/egl/libEGL.so
+ *      /vendor/lib/egl/libGLESv1_CM.so
+ *      /vendor/lib/egl/libGLESv2.so
+ *
+ * The software renderer for the emulator must be provided as a single
+ * library at:
+ *
+ *      /system/lib/egl/libGLES_android.so
+ *
+ *
+ * For backward compatibility and to facilitate the transition to
+ * this new naming scheme, the loader will additionally look for:
+ *
+ *      /{vendor|system}/lib/egl/lib{GLES | [EGL|GLESv1_CM|GLESv2]}_*.so
+ *
  */
 
 ANDROID_SINGLETON_STATIC_INSTANCE( Loader )
@@ -99,14 +116,14 @@
 
 // ----------------------------------------------------------------------------
 
-Loader::driver_t::driver_t(void* gles) 
+Loader::driver_t::driver_t(void* gles)
 {
     dso[0] = gles;
     for (size_t i=1 ; i<NELEM(dso) ; i++)
         dso[i] = 0;
 }
 
-Loader::driver_t::~driver_t() 
+Loader::driver_t::~driver_t()
 {
     for (size_t i=0 ; i<NELEM(dso) ; i++) {
         if (dso[i]) {
@@ -137,41 +154,10 @@
 // ----------------------------------------------------------------------------
 
 Loader::Loader()
-{
-    char line[256];
-    char tag[256];
-
-    /* Special case for GLES emulation */
-    if (checkGlesEmulationStatus() == 0) {
-        ALOGD("Emulator without GPU support detected. "
-              "Fallback to software renderer.");
-        mDriverTag.setTo("android");
-        return;
-    }
-
-    /* Otherwise, use egl.cfg */
-    FILE* cfg = fopen("/system/lib/egl/egl.cfg", "r");
-    if (cfg == NULL) {
-        // default config
-        ALOGD("egl.cfg not found, using default config");
-        mDriverTag.setTo("android");
-    } else {
-        while (fgets(line, 256, cfg)) {
-            int dpy, impl;
-            if (sscanf(line, "%u %u %s", &dpy, &impl, tag) == 3) {
-                //ALOGD(">>> %u %u %s", dpy, impl, tag);
-                // We only load the h/w accelerated implementation
-                if (tag != String8("android")) {
-                    mDriverTag = tag;
-                }
-            }
-        }
-        fclose(cfg);
-    }
+    : getProcAddress(NULL) {
 }
 
-Loader::~Loader()
-{
+Loader::~Loader() {
     GLTrace_stop();
 }
 
@@ -185,30 +171,24 @@
 {
     void* dso;
     driver_t* hnd = 0;
-    
-    char const* tag = mDriverTag.string();
-    if (tag) {
-        dso = load_driver("GLES", tag, cnx, EGL | GLESv1_CM | GLESv2);
+
+    dso = load_driver("GLES", cnx, EGL | GLESv1_CM | GLESv2);
+    if (dso) {
+        hnd = new driver_t(dso);
+    } else {
+        // Always load EGL first
+        dso = load_driver("EGL", cnx, EGL);
         if (dso) {
             hnd = new driver_t(dso);
-        } else {
-            // Always load EGL first
-            dso = load_driver("EGL", tag, cnx, EGL);
-            if (dso) {
-                hnd = new driver_t(dso);
-                // TODO: make this more automated
-                hnd->set( load_driver("GLESv1_CM", tag, cnx, GLESv1_CM), GLESv1_CM );
-                hnd->set( load_driver("GLESv2",    tag, cnx, GLESv2),    GLESv2 );
-            }
+            hnd->set( load_driver("GLESv1_CM", cnx, GLESv1_CM), GLESv1_CM );
+            hnd->set( load_driver("GLESv2",    cnx, GLESv2),    GLESv2 );
         }
     }
 
-    LOG_FATAL_IF(!index && !hnd,
-            "couldn't find the default OpenGL ES implementation "
-            "for default display");
+    LOG_ALWAYS_FATAL_IF(!hnd, "couldn't find an OpenGL ES implementation");
 
-    cnx->libGles2 = load_wrapper("system/lib/libGLESv2.so");
-    cnx->libGles1 = load_wrapper("system/lib/libGLESv1_CM.so");
+    cnx->libGles2 = load_wrapper("/system/lib/libGLESv2.so");
+    cnx->libGles1 = load_wrapper("/system/lib/libGLESv1_CM.so");
     LOG_ALWAYS_FATAL_IF(!cnx->libGles2 || !cnx->libGles1,
             "couldn't load system OpenGL ES wrapper libraries");
 
@@ -222,16 +202,16 @@
     return NO_ERROR;
 }
 
-void Loader::init_api(void* dso, 
-        char const * const * api, 
-        __eglMustCastToProperFunctionPointerType* curr, 
-        getProcAddressType getProcAddress) 
+void Loader::init_api(void* dso,
+        char const * const * api,
+        __eglMustCastToProperFunctionPointerType* curr,
+        getProcAddressType getProcAddress)
 {
     const ssize_t SIZE = 256;
     char scrap[SIZE];
     while (*api) {
         char const * name = *api;
-        __eglMustCastToProperFunctionPointerType f = 
+        __eglMustCastToProperFunctionPointerType f =
             (__eglMustCastToProperFunctionPointerType)dlsym(dso, name);
         if (f == NULL) {
             // couldn't find the entry-point, use eglGetProcAddress()
@@ -278,21 +258,106 @@
     }
 }
 
-void *Loader::load_driver(const char* kind, const char *tag,
+void *Loader::load_driver(const char* kind,
         egl_connection_t* cnx, uint32_t mask)
 {
-    char driver_absolute_path[PATH_MAX];
-    const char* const search1 = "/vendor/lib/egl/lib%s_%s.so";
-    const char* const search2 = "/system/lib/egl/lib%s_%s.so";
+    class MatchFile {
+    public:
+        static String8 find(const char* kind) {
+            String8 result;
+            String8 pattern;
+            pattern.appendFormat("lib%s", kind);
+            const char* const searchPaths[] = {
+                    "/vendor/lib/egl",
+                    "/system/lib/egl"
+            };
 
-    snprintf(driver_absolute_path, PATH_MAX, search1, kind, tag);
-    if (access(driver_absolute_path, R_OK)) {
-        snprintf(driver_absolute_path, PATH_MAX, search2, kind, tag);
-        if (access(driver_absolute_path, R_OK)) {
-            // this happens often, we don't want to log an error
-            return 0;
+            // first, we search for the exact name of the GLES userspace
+            // driver in both locations.
+            // i.e.:
+            //      libGLES.so, or:
+            //      libEGL.so, libGLESv1_CM.so, libGLESv2.so
+
+            for (size_t i=0 ; i<NELEM(searchPaths) ; i++) {
+                if (find(result, pattern, searchPaths[i], true)) {
+                    return result;
+                }
+            }
+
+            // for compatibility with the old "egl.cfg" naming convention
+            // we look for files that match:
+            //      libGLES_*.so, or:
+            //      libEGL_*.so, libGLESv1_CM_*.so, libGLESv2_*.so
+
+            pattern.append("_");
+            for (size_t i=0 ; i<NELEM(searchPaths) ; i++) {
+                if (find(result, pattern, searchPaths[i], false)) {
+                    return result;
+                }
+            }
+
+            // we didn't find the driver. gah.
+            result.clear();
+            return result;
         }
+
+    private:
+        static bool find(String8& result,
+                const String8& pattern, const char* const search, bool exact) {
+
+            // in the emulator case, we just return the hardcoded name
+            // of the software renderer.
+            if (checkGlesEmulationStatus() == 0) {
+                ALOGD("Emulator without GPU support detected. "
+                      "Fallback to software renderer.");
+                result.setTo("/system/lib/egl/libGLES_android.so");
+                return true;
+            }
+
+            if (exact) {
+                String8 absolutePath;
+                absolutePath.appendFormat("%s/%s.so", search, pattern.string());
+                if (!access(absolutePath.string(), R_OK)) {
+                    result = absolutePath;
+                    return true;
+                }
+                return false;
+            }
+
+            DIR* d = opendir(search);
+            if (d != NULL) {
+                struct dirent cur;
+                struct dirent* e;
+                while (readdir_r(d, &cur, &e) == 0 && e) {
+                    if (e->d_type == DT_DIR) {
+                        continue;
+                    }
+                    if (!strcmp(e->d_name, "libGLES_android.so")) {
+                        // always skip the software renderer
+                        continue;
+                    }
+                    if (strstr(e->d_name, pattern.string()) == e->d_name) {
+                        if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) {
+                            result.clear();
+                            result.appendFormat("%s/%s", search, e->d_name);
+                            closedir(d);
+                            return true;
+                        }
+                    }
+                }
+                closedir(d);
+            }
+            return false;
+        }
+    };
+
+
+    String8 absolutePath = MatchFile::find(kind);
+    if (absolutePath.isEmpty()) {
+        // this happens often, we don't want to log an error
+        return 0;
     }
+    const char* const driver_absolute_path = absolutePath.string();
 
     void* dso = dlopen(driver_absolute_path, RTLD_NOW | RTLD_LOCAL);
     if (dso == 0) {
@@ -306,7 +371,7 @@
     if (mask & EGL) {
         getProcAddress = (getProcAddressType)dlsym(dso, "eglGetProcAddress");
 
-        ALOGE_IF(!getProcAddress, 
+        ALOGE_IF(!getProcAddress,
                 "can't find eglGetProcAddress() in %s", driver_absolute_path);
 
 #ifdef SYSTEMUI_PBSIZE_HACK
@@ -344,7 +409,7 @@
         char const * const * api = egl_names;
         while (*api) {
             char const * name = *api;
-            __eglMustCastToProperFunctionPointerType f = 
+            __eglMustCastToProperFunctionPointerType f =
                 (__eglMustCastToProperFunctionPointerType)dlsym(dso, name);
             if (f == NULL) {
                 // couldn't find the entry-point, use eglGetProcAddress()
@@ -357,7 +422,7 @@
             api++;
         }
     }
-    
+
     if (mask & GLESv1_CM) {
         init_api(dso, gl_names,
             (__eglMustCastToProperFunctionPointerType*)
@@ -371,7 +436,7 @@
                 &cnx->hooks[egl_connection_t::GLESv2_INDEX]->gl,
             getProcAddress);
     }
-    
+
     return dso;
 }
 
diff --git a/opengl/libs/EGL/Loader.h b/opengl/libs/EGL/Loader.h
index 30773cb..8cefe32 100644
--- a/opengl/libs/EGL/Loader.h
+++ b/opengl/libs/EGL/Loader.h
@@ -52,7 +52,6 @@
         void* dso[3];
     };
     
-    String8 mDriverTag;
     getProcAddressType getProcAddress;
     
 public:
@@ -63,7 +62,7 @@
     
 private:
     Loader();
-    void *load_driver(const char* kind, const char *tag, egl_connection_t* cnx, uint32_t mask);
+    void *load_driver(const char* kind, egl_connection_t* cnx, uint32_t mask);
 
     static __attribute__((noinline))
     void init_api(void* dso, 
diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index 6ac8724..86637dc 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -230,9 +230,6 @@
 
 static void early_egl_init(void)
 {
-#if !USE_FAST_TLS_KEY
-    pthread_key_create(&gGLWrapperKey, NULL);
-#endif
 #if EGL_TRACE
     pthread_key_create(&gGLTraceKey, NULL);
     initEglTraceLevel();
@@ -341,42 +338,11 @@
 
 // ----------------------------------------------------------------------------
 
-#if USE_FAST_TLS_KEY
-
-// We have a dedicated TLS slot in bionic
-static inline gl_hooks_t const * volatile * get_tls_hooks() {
-    volatile void *tls_base = __get_tls();
-    gl_hooks_t const * volatile * tls_hooks =
-            reinterpret_cast<gl_hooks_t const * volatile *>(tls_base);
-    return tls_hooks;
-}
-
 void setGlThreadSpecific(gl_hooks_t const *value) {
     gl_hooks_t const * volatile * tls_hooks = get_tls_hooks();
     tls_hooks[TLS_SLOT_OPENGL_API] = value;
 }
 
-gl_hooks_t const* getGlThreadSpecific() {
-    gl_hooks_t const * volatile * tls_hooks = get_tls_hooks();
-    gl_hooks_t const* hooks = tls_hooks[TLS_SLOT_OPENGL_API];
-    if (hooks) return hooks;
-    return &gHooksNoContext;
-}
-
-#else
-
-void setGlThreadSpecific(gl_hooks_t const *value) {
-    pthread_setspecific(gGLWrapperKey, value);
-}
-
-gl_hooks_t const* getGlThreadSpecific() {
-    gl_hooks_t const* hooks =  static_cast<gl_hooks_t*>(pthread_getspecific(gGLWrapperKey));
-    if (hooks) return hooks;
-    return &gHooksNoContext;
-}
-
-#endif
-
 // ----------------------------------------------------------------------------
 // GL / EGL hooks
 // ----------------------------------------------------------------------------
diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index f39c386..6c285d3 100644
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -866,9 +866,7 @@
             }
 
             if (found) {
-#if USE_FAST_TLS_KEY
                 addr = gExtensionForwarders[slot];
-#endif
                 sGLExtentionMap.add(name, addr);
                 sGLExtentionSlot++;
             }
@@ -1199,6 +1197,11 @@
 {
     clearError();
 
+#if EGL_TRACE
+    if (getEGLDebugLevel() > 0)
+        GLTrace_eglReleaseThread();
+#endif
+
     // If there is context bound to the thread, release it
     egl_display_t::loseCurrent(get_context(getContext()));
 
@@ -1206,12 +1209,7 @@
     if (cnx->dso && cnx->egl.eglReleaseThread) {
         cnx->egl.eglReleaseThread();
     }
-
     egl_tls_t::clearTLS();
-#if EGL_TRACE
-    if (getEGLDebugLevel() > 0)
-        GLTrace_eglReleaseThread();
-#endif
     return EGL_TRUE;
 }
 
diff --git a/opengl/libs/EGL/egl_tls.cpp b/opengl/libs/EGL/egl_tls.cpp
index 52312a2..f3739aa 100644
--- a/opengl/libs/EGL/egl_tls.cpp
+++ b/opengl/libs/EGL/egl_tls.cpp
@@ -29,8 +29,8 @@
 
 namespace android {
 
-pthread_key_t egl_tls_t::sKey = -1;
-pthread_mutex_t egl_tls_t::sLockKey = PTHREAD_MUTEX_INITIALIZER;
+pthread_key_t egl_tls_t::sKey = TLS_KEY_NOT_INITIALIZED;
+pthread_once_t egl_tls_t::sOnceKey = PTHREAD_ONCE_INIT;
 
 egl_tls_t::egl_tls_t()
     : error(EGL_SUCCESS), ctx(0), logCallWithNoContext(EGL_TRUE) {
@@ -59,12 +59,12 @@
 
 void egl_tls_t::validateTLSKey()
 {
-    if (sKey == -1) {
-        pthread_mutex_lock(&sLockKey);
-        if (sKey == -1)
-            pthread_key_create(&sKey, NULL);
-        pthread_mutex_unlock(&sLockKey);
-    }
+    struct TlsKeyInitializer {
+        static void create() {
+            pthread_key_create(&sKey, (void (*)(void*))&eglReleaseThread);
+        }
+    };
+    pthread_once(&sOnceKey, TlsKeyInitializer::create);
 }
 
 void egl_tls_t::setErrorEtcImpl(
@@ -104,11 +104,11 @@
 }
 
 void egl_tls_t::clearTLS() {
-    if (sKey != -1) {
+    if (sKey != TLS_KEY_NOT_INITIALIZED) {
         egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
         if (tls) {
-            delete tls;
             pthread_setspecific(sKey, 0);
+            delete tls;
         }
     }
 }
@@ -120,10 +120,13 @@
 }
 
 EGLint egl_tls_t::getError() {
-    if (sKey == -1)
+    if (sKey == TLS_KEY_NOT_INITIALIZED) {
         return EGL_SUCCESS;
+    }
     egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
-    if (!tls) return EGL_SUCCESS;
+    if (!tls) {
+        return EGL_SUCCESS;
+    }
     EGLint error = tls->error;
     tls->error = EGL_SUCCESS;
     return error;
@@ -135,8 +138,9 @@
 }
 
 EGLContext egl_tls_t::getContext() {
-    if (sKey == -1)
+    if (sKey == TLS_KEY_NOT_INITIALIZED) {
         return EGL_NO_CONTEXT;
+    }
     egl_tls_t* tls = (egl_tls_t *)pthread_getspecific(sKey);
     if (!tls) return EGL_NO_CONTEXT;
     return tls->ctx;
diff --git a/opengl/libs/EGL/egl_tls.h b/opengl/libs/EGL/egl_tls.h
index 56c5dba..5af4f5b 100644
--- a/opengl/libs/EGL/egl_tls.h
+++ b/opengl/libs/EGL/egl_tls.h
@@ -30,8 +30,9 @@
 class DbgContext;
 
 class egl_tls_t {
+    enum { TLS_KEY_NOT_INITIALIZED = -1 };
     static pthread_key_t sKey;
-    static pthread_mutex_t sLockKey;
+    static pthread_once_t sOnceKey;
 
     EGLint      error;
     EGLContext  ctx;
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index c160aa0..add2a79 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -34,9 +34,7 @@
 #undef GL_EXTENSION_LIST
 #undef GET_TLS
 
-#if USE_FAST_TLS_KEY
-
-    #if defined(__arm__)
+#if defined(__arm__)
 
     #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
 
@@ -58,7 +56,7 @@
             :                                                   \
             );
 
-    #elif defined(__mips__)
+#elif defined(__mips__)
 
         #define API_ENTRY(_api) __attribute__((noinline)) _api
 
@@ -88,27 +86,21 @@
                                           ext.extensions[_api]))    \
                 :                                                   \
             );
+#endif
 
-    #else
-        #error Unsupported architecture
-    #endif
-
+#if defined(CALL_GL_EXTENSION_API)
     #define GL_EXTENSION_NAME(_n)   __glExtFwd##_n
 
     #define GL_EXTENSION(_n)                         \
         void API_ENTRY(GL_EXTENSION_NAME(_n))() {    \
             CALL_GL_EXTENSION_API(_n);               \
         }
-
-
 #else
+        #define GL_EXTENSION_NAME(_n) NULL
 
-    #define GL_EXTENSION_NAME(_n) NULL
+        #define GL_EXTENSION(_n)
 
-    #define GL_EXTENSION(_n)
-
-    #warning "eglGetProcAddress() partially supported"
-
+        #warning "eglGetProcAddress() partially supported"
 #endif
 
 
diff --git a/opengl/libs/GLES2/gl2.cpp b/opengl/libs/GLES2/gl2.cpp
index fad2176..3134e56 100644
--- a/opengl/libs/GLES2/gl2.cpp
+++ b/opengl/libs/GLES2/gl2.cpp
@@ -40,13 +40,11 @@
 #undef CALL_GL_API
 #undef CALL_GL_API_RETURN
 
-#if USE_FAST_TLS_KEY
-
-  #if defined(__arm__)
+#if defined(__arm__) && !USE_SLOW_BINDING
 
     #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
 
-    #define API_ENTRY(_api) __attribute__((naked)) _api
+    #define API_ENTRY(_api) __attribute__((noinline)) _api
 
     #define CALL_GL_API(_api, ...)                              \
          asm volatile(                                          \
@@ -54,15 +52,13 @@
             "ldr   r12, [r12, %[tls]] \n"                       \
             "cmp   r12, #0            \n"                       \
             "ldrne pc,  [r12, %[api]] \n"                       \
-            "mov   r0, #0             \n"                       \
-            "bx    lr                 \n"                       \
             :                                                   \
             : [tls] "J"(TLS_SLOT_OPENGL_API*4),                 \
               [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api))    \
             :                                                   \
             );
 
-  #elif defined(__mips__)
+#elif defined(__mips__) && !USE_SLOW_BINDING
 
     #define API_ENTRY(_api) __attribute__((noinline)) _api
 
@@ -94,30 +90,21 @@
             :                                                    \
             );
 
-  #else
-
-    #error Unsupported architecture
-
-  #endif
-
-    #define CALL_GL_API_RETURN(_api, ...) \
-        CALL_GL_API(_api, __VA_ARGS__) \
-        return 0; // placate gcc's warnings. never reached.
-
 #else
 
     #define API_ENTRY(_api) _api
 
     #define CALL_GL_API(_api, ...)                                       \
         gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;  \
-        _c->_api(__VA_ARGS__);
-
-    #define CALL_GL_API_RETURN(_api, ...)                                \
-        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;  \
-        return _c->_api(__VA_ARGS__)
+        if (_c) return _c->_api(__VA_ARGS__);
 
 #endif
 
+#define CALL_GL_API_RETURN(_api, ...) \
+    CALL_GL_API(_api, __VA_ARGS__) \
+    return 0;
+
+
 
 extern "C" {
 #include "gl3_api.in"
@@ -139,7 +126,8 @@
 {
     const GLubyte * ret = egl_get_string_for_current_context(name);
     if (ret == NULL) {
-        ret = __glGetString(name);
+        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;
+        ret = _c->glGetString(name);
     }
     return ret;
 }
diff --git a/opengl/libs/GLES_CM/gl.cpp b/opengl/libs/GLES_CM/gl.cpp
index a5bbdc6..18ef6f9 100644
--- a/opengl/libs/GLES_CM/gl.cpp
+++ b/opengl/libs/GLES_CM/gl.cpp
@@ -31,9 +31,6 @@
 
 using namespace android;
 
-// set this to 1 for crude GL debugging
-#define CHECK_FOR_GL_ERRORS     0
-
 // ----------------------------------------------------------------------------
 // extensions for the framework
 // ----------------------------------------------------------------------------
@@ -95,13 +92,11 @@
 #undef CALL_GL_API
 #undef CALL_GL_API_RETURN
 
-#if USE_FAST_TLS_KEY && !CHECK_FOR_GL_ERRORS
-
-  #if defined(__arm__)
+#if defined(__arm__) && !USE_SLOW_BINDING
 
     #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
 
-    #define API_ENTRY(_api) __attribute__((naked)) _api
+    #define API_ENTRY(_api) __attribute__((noinline)) _api
 
     #define CALL_GL_API(_api, ...)                              \
          asm volatile(                                          \
@@ -109,15 +104,13 @@
             "ldr   r12, [r12, %[tls]] \n"                       \
             "cmp   r12, #0            \n"                       \
             "ldrne pc,  [r12, %[api]] \n"                       \
-            "mov   r0, #0             \n"                       \
-            "bx    lr                 \n"                       \
             :                                                   \
             : [tls] "J"(TLS_SLOT_OPENGL_API*4),                 \
               [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api))    \
             :                                                   \
             );
 
-  #elif defined(__mips__)
+#elif defined(__mips__) && !USE_SLOW_BINDING
 
     #define API_ENTRY(_api) __attribute__((noinline)) _api
 
@@ -149,43 +142,20 @@
             :                                                    \
             );
 
-  #else
-    #error Unsupported architecture
-  #endif
-
-    #define CALL_GL_API_RETURN(_api, ...) \
-        CALL_GL_API(_api, __VA_ARGS__) \
-        return 0; // placate gcc's warnings. never reached.
-
 #else
 
-    #if CHECK_FOR_GL_ERRORS
-    
-        #define CHECK_GL_ERRORS(_api) \
-            do { GLint err = glGetError(); \
-                ALOGE_IF(err != GL_NO_ERROR, "%s failed (0x%04X)", #_api, err); \
-            } while(false);
-
-    #else
-
-        #define CHECK_GL_ERRORS(_api) do { } while(false);
-
-    #endif
-
-
     #define API_ENTRY(_api) _api
 
-    #define CALL_GL_API(_api, ...)                                      \
-        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
-        _c->_api(__VA_ARGS__);                                          \
-        CHECK_GL_ERRORS(_api)
-
-    #define CALL_GL_API_RETURN(_api, ...)                               \
-        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
-        return _c->_api(__VA_ARGS__)
+    #define CALL_GL_API(_api, ...)                                       \
+        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;  \
+        if (_c) return _c->_api(__VA_ARGS__);
 
 #endif
 
+#define CALL_GL_API_RETURN(_api, ...) \
+    CALL_GL_API(_api, __VA_ARGS__) \
+    return 0;
+
 
 extern "C" {
 #include "gl_api.in"
@@ -202,11 +172,11 @@
 
 extern "C" const GLubyte * __glGetString(GLenum name);
 
-const GLubyte * glGetString(GLenum name)
-{
+const GLubyte * glGetString(GLenum name) {
     const GLubyte * ret = egl_get_string_for_current_context(name);
     if (ret == NULL) {
-        ret = __glGetString(name);
+        gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl;
+        ret = _c->glGetString(name);
     }
     return ret;
 }
diff --git a/opengl/libs/GLES_trace/src/gltrace_context.cpp b/opengl/libs/GLES_trace/src/gltrace_context.cpp
index 3a8decc..0323e8f 100644
--- a/opengl/libs/GLES_trace/src/gltrace_context.cpp
+++ b/opengl/libs/GLES_trace/src/gltrace_context.cpp
@@ -32,7 +32,7 @@
 static pthread_once_t sPthreadOnceKey = PTHREAD_ONCE_INIT;
 
 void createTLSKey() {
-    pthread_key_create(&sTLSKey, NULL);
+    pthread_key_create(&sTLSKey, (void (*)(void*))&releaseContext);
 }
 
 GLTraceContext *getGLTraceContext() {
diff --git a/opengl/libs/hooks.h b/opengl/libs/hooks.h
index b2a684c..4b43198 100644
--- a/opengl/libs/hooks.h
+++ b/opengl/libs/hooks.h
@@ -32,13 +32,11 @@
 #include <GLES3/gl3.h>
 #include <GLES3/gl3ext.h>
 
-#if !defined(__arm__) && !defined(__mips__)
-#define USE_SLOW_BINDING            1
-#else
-#define USE_SLOW_BINDING            0
-#endif
+// set to 1 for debugging
+#define USE_SLOW_BINDING    0
+
 #undef NELEM
-#define NELEM(x)                    (sizeof(x)/sizeof(*(x)))
+#define NELEM(x)            (sizeof(x)/sizeof(*(x)))
 
 // maximum number of GL extensions that can be used simultaneously in
 // a given process. this limitation exists because we need to have
@@ -47,15 +45,7 @@
 #define MAX_NUMBER_OF_GL_EXTENSIONS 256
 
 
-#if defined(HAVE_ANDROID_OS) && !USE_SLOW_BINDING && __OPTIMIZE__
-#define USE_FAST_TLS_KEY            1
-#else
-#define USE_FAST_TLS_KEY            0
-#endif
-
-#if USE_FAST_TLS_KEY
-#   include <bionic_tls.h>  /* special private C library header */
-#endif
+#include <bionic_tls.h>  /* special private C library header */
 
 // ----------------------------------------------------------------------------
 namespace android {
@@ -84,7 +74,20 @@
 #undef EGL_ENTRY
 
 EGLAPI void setGlThreadSpecific(gl_hooks_t const *value);
-EGLAPI gl_hooks_t const* getGlThreadSpecific();
+
+// We have a dedicated TLS slot in bionic
+inline gl_hooks_t const * volatile * get_tls_hooks() {
+    volatile void *tls_base = __get_tls();
+    gl_hooks_t const * volatile * tls_hooks =
+            reinterpret_cast<gl_hooks_t const * volatile *>(tls_base);
+    return tls_hooks;
+}
+
+inline EGLAPI gl_hooks_t const* getGlThreadSpecific() {
+    gl_hooks_t const * volatile * tls_hooks = get_tls_hooks();
+    gl_hooks_t const* hooks = tls_hooks[TLS_SLOT_OPENGL_API];
+    return hooks;
+}
 
 // ----------------------------------------------------------------------------
 }; // namespace android
diff --git a/opengl/specs/EGL_ANDROID_presentation_time.txt b/opengl/specs/EGL_ANDROID_presentation_time.txt
index 09b3938..e1dab34 100644
--- a/opengl/specs/EGL_ANDROID_presentation_time.txt
+++ b/opengl/specs/EGL_ANDROID_presentation_time.txt
@@ -10,6 +10,7 @@
 
     Jamie Gennis
     Andy McFadden
+    Jesse Hall
 
 Contact
 
@@ -21,7 +22,7 @@
 
 Version
 
-    Version 2, April 1, 2013
+    Version 3, June 26, 2013
 
 Number
 
@@ -92,7 +93,9 @@
 
     If the surface presentation time is successfully set, EGL_TRUE is
     returned.  Otherwise EGL_FALSE is returned and an appropriate error is
-    set.
+    set.  If <dpy> is not the name of a valid, initialized EGLDisplay, an
+    EGL_BAD_DISPLAY error is generated.  If <surface> is not a valid EGLSurface
+    then an EGL_BAD_SURFACE error is generated.
 
 Issues
 
@@ -110,9 +113,21 @@
     System.nanoTime() method, or from the native clock_gettime function by
     passing CLOCK_MONOTONIC as the clock identifier.
 
+    3. Should the presentation time be state which is used by eglSwapBuffers,
+    or should it be a new parameter to an extended variant of eglSwapBuffers?
+
+    RESOLVED: The presentation time should be new state which is used by
+    the existing eglSwapBuffers call. Adding new state composes better with
+    other (hypothetical) extensions that also modify the behavior of
+    eglSwapBuffers.
+
 Revision History
 
-#1 (Jamie Gennis, April 1, 2013)
+#3 (Jesse Hall, June 26, 2013)
+    - Enumerated errors generated by eglPresentationTimeANDROID.
+    - Added Issue #3 with resolution.
+
+#2 (Jamie Gennis, April 1, 2013)
     - Clarified how uses that either do or do not need an absolute time should
       be handled.
     - Specified the eglPresentationTimeANDROID return value.
diff --git a/opengl/tools/glgen/gen b/opengl/tools/glgen/gen
index d236c1e..7146a29 100755
--- a/opengl/tools/glgen/gen
+++ b/opengl/tools/glgen/gen
@@ -32,10 +32,6 @@
 echo "package android.util; public class Log {public static void w(String a, String b) {} public static void e(String a, String b) {}}" > out/android/util/Log.java
 
 echo "package android.opengl; public abstract class EGLObjectHandle { public int getHandle() { return 0; } }" > out/android/opengl/EGLObjectHandle.java
-echo "package android.opengl; public class EGLSurface extends EGLObjectHandle {  }" > out/android/opengl/EGLSurface.java
-echo "package android.opengl; public class EGLContext extends EGLObjectHandle {  }" > out/android/opengl/EGLContext.java
-echo "package android.opengl; public class EGLDisplay extends EGLObjectHandle {  }" > out/android/opengl/EGLDisplay.java
-echo "package android.opengl; public class EGLConfig extends EGLObjectHandle {  }" > out/android/opengl/EGLConfig.java
 
 
 echo "package android.graphics;" > out/android/graphics/SurfaceTexture.java
@@ -47,6 +43,7 @@
 echo "package android.view;" > out/android/view/SurfaceHolder.java
 echo "public interface SurfaceHolder { Surface getSurface(); }" >> out/android/view/SurfaceHolder.java
 
+cp static/egl/*.java out/android/opengl/
 
 GLFILE=out/javax/microedition/khronos/opengles/GL.java
 cp stubs/jsr239/GLHeader.java-if $GLFILE
@@ -141,8 +138,8 @@
             echo
             SAID_PLEASE=1
         fi
-        echo "    " cp $2/$3 $1
-        echo "    " git add $1/$3
+        echo "    cp $2/$3 $1"
+        echo "    (cd $1; git add $3)"
         KEEP_GENERATED=1
     fi
 }
@@ -161,6 +158,11 @@
     compareGenerated ../../../../base/core/jni generated/C android_opengl_${x}.cpp
 done
 
+for x in EGLConfig EGLContext EGLDisplay EGLObjectHandle EGLSurface
+do
+    compareGenerated ../../../../base/opengl/java/android/opengl generated/android/opengl ${x}.java
+done
+
 if [ $KEEP_GENERATED == "0" ] ; then
     rm -rf generated
 fi
diff --git a/opengl/tools/glgen/static/egl/EGLConfig.java b/opengl/tools/glgen/static/egl/EGLConfig.java
index d457c9f..a7a6bbb 100644
--- a/opengl/tools/glgen/static/egl/EGLConfig.java
+++ b/opengl/tools/glgen/static/egl/EGLConfig.java
@@ -29,7 +29,7 @@
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof EGLConfig)) return false;
 
         EGLConfig that = (EGLConfig) o;
         return getHandle() == that.getHandle();
diff --git a/opengl/tools/glgen/static/egl/EGLContext.java b/opengl/tools/glgen/static/egl/EGLContext.java
index 41b8ef1..c93bd6e 100644
--- a/opengl/tools/glgen/static/egl/EGLContext.java
+++ b/opengl/tools/glgen/static/egl/EGLContext.java
@@ -29,7 +29,7 @@
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof EGLContext)) return false;
 
         EGLContext that = (EGLContext) o;
         return getHandle() == that.getHandle();
diff --git a/opengl/tools/glgen/static/egl/EGLDisplay.java b/opengl/tools/glgen/static/egl/EGLDisplay.java
index 17d1a64..5b8043a 100644
--- a/opengl/tools/glgen/static/egl/EGLDisplay.java
+++ b/opengl/tools/glgen/static/egl/EGLDisplay.java
@@ -29,7 +29,7 @@
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof EGLDisplay)) return false;
 
         EGLDisplay that = (EGLDisplay) o;
         return getHandle() == that.getHandle();
diff --git a/opengl/tools/glgen/static/egl/EGLSurface.java b/opengl/tools/glgen/static/egl/EGLSurface.java
index 65bec4f..c379dc9 100644
--- a/opengl/tools/glgen/static/egl/EGLSurface.java
+++ b/opengl/tools/glgen/static/egl/EGLSurface.java
@@ -29,7 +29,7 @@
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
+        if (!(o instanceof EGLSurface)) return false;
 
         EGLSurface that = (EGLSurface) o;
         return getHandle() == that.getHandle();
diff --git a/opengl/tools/glgen/stubs/gles11/common.cpp b/opengl/tools/glgen/stubs/gles11/common.cpp
index 579d573..75b75cb 100644
--- a/opengl/tools/glgen/stubs/gles11/common.cpp
+++ b/opengl/tools/glgen/stubs/gles11/common.cpp
@@ -272,6 +272,7 @@
     int _needed = 0;
 
     params = (CTYPE *)getPointer(_env, params_buf, &_array, &_remaining, &_bufferOffset);
+    _remaining /= sizeof(CTYPE);    // convert from bytes to item count
     _needed = getNeededCount(pname);
     // if we didn't find this pname, we just assume the user passed
     // an array of the right size -- this might happen with extensions
diff --git a/services/inputflinger/Android.mk b/services/inputflinger/Android.mk
new file mode 100644
index 0000000..7148db8
--- /dev/null
+++ b/services/inputflinger/Android.mk
@@ -0,0 +1,35 @@
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    InputFlinger.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libbinder \
+    libcutils \
+    libinput \
+    liblog \
+    libutils
+
+LOCAL_CFLAGS += -fvisibility=hidden
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+
+LOCAL_MODULE := libinputflinger
+
+include $(BUILD_SHARED_LIBRARY)
+
diff --git a/services/inputflinger/InputFlinger.cpp b/services/inputflinger/InputFlinger.cpp
new file mode 100644
index 0000000..9ea6ce5
--- /dev/null
+++ b/services/inputflinger/InputFlinger.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputFlinger"
+
+#include "InputFlinger.h"
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/PermissionCache.h>
+#include <cutils/log.h>
+#include <private/android_filesystem_config.h>
+
+namespace android {
+
+const String16 sAccessInputFlingerPermission("android.permission.ACCESS_INPUT_FLINGER");
+const String16 sDumpPermission("android.permission.DUMP");
+
+
+InputFlinger::InputFlinger() :
+        BnInputFlinger() {
+    ALOGI("InputFlinger is starting");
+}
+
+InputFlinger::~InputFlinger() {
+}
+
+status_t InputFlinger::onTransact(
+        uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+    switch (code) {
+    case DO_SOMETHING_TRANSACTION:
+        const IPCThreadState* ipc = IPCThreadState::self();
+        const int pid = ipc->getCallingPid();
+        const int uid = ipc->getCallingUid();
+        if (!PermissionCache::checkPermission(sAccessInputFlingerPermission, pid, uid)) {
+            ALOGE("Permission Denial: "
+                    "can't access InputFlinger from pid=%d, uid=%d", pid, uid);
+            return PERMISSION_DENIED;
+        }
+        break;
+    }
+
+    return BnInputFlinger::onTransact(code, data, reply, flags);
+}
+
+status_t InputFlinger::dump(int fd, const Vector<String16>& args) {
+    String8 result;
+    const IPCThreadState* ipc = IPCThreadState::self();
+    const int pid = ipc->getCallingPid();
+    const int uid = ipc->getCallingUid();
+    if ((uid != AID_SHELL)
+            && !PermissionCache::checkPermission(sDumpPermission, pid, uid)) {
+        result.appendFormat("Permission Denial: "
+                "can't dump SurfaceFlinger from pid=%d, uid=%d\n", pid, uid);
+    } else {
+        dumpInternal(result);
+    }
+    write(fd, result.string(), result.size());
+    return OK;
+}
+
+void InputFlinger::dumpInternal(String8& result) {
+    result.append("INPUT FLINGER (dumpsys inputflinger)\n");
+    result.append("... nothing here yet...\n");
+}
+
+status_t InputFlinger::doSomething() {
+    ALOGI("Did something...");
+    return OK;
+}
+
+}; // namespace android
diff --git a/services/inputflinger/InputFlinger.h b/services/inputflinger/InputFlinger.h
new file mode 100644
index 0000000..731ab17
--- /dev/null
+++ b/services/inputflinger/InputFlinger.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_FLINGER_H
+#define ANDROID_INPUT_FLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <cutils/compiler.h>
+#include <input/IInputFlinger.h>
+#include <utils/String8.h>
+#include <utils/String16.h>
+
+namespace android {
+
+class InputFlinger : public BnInputFlinger {
+public:
+    static char const* getServiceName() ANDROID_API {
+        return "inputflinger";
+    }
+
+    InputFlinger() ANDROID_API;
+
+    // IBinder interface
+    virtual status_t onTransact(uint32_t code,
+            const Parcel& data, Parcel* reply, uint32_t flags);
+    virtual status_t dump(int fd, const Vector<String16>& args);
+
+    // IInputFlinger interface
+    virtual status_t doSomething();
+
+private:
+    virtual ~InputFlinger();
+
+    void dumpInternal(String8& result);
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_FLINGER_H
diff --git a/services/powermanager/IPowerManager.cpp b/services/powermanager/IPowerManager.cpp
index 0265df3..3f5b81e 100644
--- a/services/powermanager/IPowerManager.cpp
+++ b/services/powermanager/IPowerManager.cpp
@@ -41,7 +41,8 @@
     {
     }
 
-    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag)
+    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag,
+            const String16& packageName)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
@@ -49,6 +50,7 @@
         data.writeStrongBinder(lock);
         data.writeInt32(flags);
         data.writeString16(tag);
+        data.writeString16(packageName);
         data.writeInt32(0); // no WorkSource
         return remote()->transact(ACQUIRE_WAKE_LOCK, data, &reply);
     }
diff --git a/services/sensorservice/Android.mk b/services/sensorservice/Android.mk
index dd698c5..14a4e55 100644
--- a/services/sensorservice/Android.mk
+++ b/services/sensorservice/Android.mk
@@ -12,11 +12,12 @@
     SensorDevice.cpp \
     SensorFusion.cpp \
     SensorInterface.cpp \
-    SensorService.cpp \
-
+    SensorService.cpp
 
 LOCAL_CFLAGS:= -DLOG_TAG=\"SensorService\"
 
+LOCAL_CFLAGS += -fvisibility=hidden
+
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
 	libhardware \
@@ -27,8 +28,6 @@
 	libui \
 	libgui
 
-
-
 LOCAL_MODULE:= libsensorservice
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/services/sensorservice/BatteryService.cpp b/services/sensorservice/BatteryService.cpp
index 70b65ab..38dc749 100644
--- a/services/sensorservice/BatteryService.cpp
+++ b/services/sensorservice/BatteryService.cpp
@@ -33,7 +33,7 @@
 BatteryService::BatteryService() {
     const sp<IServiceManager> sm(defaultServiceManager());
     if (sm != NULL) {
-        const String16 name("batteryinfo");
+        const String16 name("batterystats");
         mBatteryStatService = sm->getService(name);
     }
 }
diff --git a/services/sensorservice/CorrectedGyroSensor.cpp b/services/sensorservice/CorrectedGyroSensor.cpp
index 1857443..09f60a9 100644
--- a/services/sensorservice/CorrectedGyroSensor.cpp
+++ b/services/sensorservice/CorrectedGyroSensor.cpp
@@ -69,7 +69,7 @@
 Sensor CorrectedGyroSensor::getSensor() const {
     sensor_t hwSensor;
     hwSensor.name       = "Corrected Gyroscope Sensor";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = 1;
     hwSensor.handle     = '_cgy';
     hwSensor.type       = SENSOR_TYPE_GYROSCOPE;
diff --git a/services/sensorservice/Fusion.cpp b/services/sensorservice/Fusion.cpp
index 93d6127..4f63c31 100644
--- a/services/sensorservice/Fusion.cpp
+++ b/services/sensorservice/Fusion.cpp
@@ -220,22 +220,6 @@
     // initial covariance: Var{ x(t0) }
     // TODO: initialize P correctly
     P = 0;
-
-    // it is unclear how to set the initial covariance. It does affect
-    // how quickly the fusion converges. Experimentally it would take
-    // about 10 seconds at 200 Hz to estimate the gyro-drift with an
-    // initial covariance of 0, and about a second with an initial covariance
-    // of about 1 deg/s.
-    const float covv = 0;
-    const float covu = 0.5f * (float(M_PI) / 180);
-    mat33_t& Pv = P[0][0];
-    Pv[0][0] = covv;
-    Pv[1][1] = covv;
-    Pv[2][2] = covv;
-    mat33_t& Pu = P[1][1];
-    Pu[0][0] = covu;
-    Pu[1][1] = covu;
-    Pu[2][2] = covu;
 }
 
 bool Fusion::hasEstimate() const {
diff --git a/services/sensorservice/GravitySensor.cpp b/services/sensorservice/GravitySensor.cpp
index c57715f..0bf20db 100644
--- a/services/sensorservice/GravitySensor.cpp
+++ b/services/sensorservice/GravitySensor.cpp
@@ -77,7 +77,7 @@
 Sensor GravitySensor::getSensor() const {
     sensor_t hwSensor;
     hwSensor.name       = "Gravity Sensor";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = 3;
     hwSensor.handle     = '_grv';
     hwSensor.type       = SENSOR_TYPE_GRAVITY;
diff --git a/services/sensorservice/LinearAccelerationSensor.cpp b/services/sensorservice/LinearAccelerationSensor.cpp
index f0054f2..25ae473 100644
--- a/services/sensorservice/LinearAccelerationSensor.cpp
+++ b/services/sensorservice/LinearAccelerationSensor.cpp
@@ -62,7 +62,7 @@
     Sensor gsensor(mGravitySensor.getSensor());
     sensor_t hwSensor;
     hwSensor.name       = "Linear Acceleration Sensor";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = gsensor.getVersion();
     hwSensor.handle     = '_lin';
     hwSensor.type       = SENSOR_TYPE_LINEAR_ACCELERATION;
diff --git a/services/sensorservice/OrientationSensor.cpp b/services/sensorservice/OrientationSensor.cpp
index 037adaa..b146332 100644
--- a/services/sensorservice/OrientationSensor.cpp
+++ b/services/sensorservice/OrientationSensor.cpp
@@ -33,6 +33,9 @@
     : mSensorDevice(SensorDevice::getInstance()),
       mSensorFusion(SensorFusion::getInstance())
 {
+    // FIXME: instead of using the SensorFusion code, we should use
+    // the SENSOR_TYPE_ROTATION_VECTOR instead. This way we could use the
+    // HAL's implementation.
 }
 
 bool OrientationSensor::process(sensors_event_t* outEvent,
@@ -73,7 +76,7 @@
 Sensor OrientationSensor::getSensor() const {
     sensor_t hwSensor;
     hwSensor.name       = "Orientation Sensor";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = 1;
     hwSensor.handle     = '_ypr';
     hwSensor.type       = SENSOR_TYPE_ORIENTATION;
diff --git a/services/sensorservice/RotationVectorSensor.cpp b/services/sensorservice/RotationVectorSensor.cpp
index 5ea9568..725deb4 100644
--- a/services/sensorservice/RotationVectorSensor.cpp
+++ b/services/sensorservice/RotationVectorSensor.cpp
@@ -63,7 +63,7 @@
 Sensor RotationVectorSensor::getSensor() const {
     sensor_t hwSensor;
     hwSensor.name       = "Rotation Vector Sensor";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = 3;
     hwSensor.handle     = '_rov';
     hwSensor.type       = SENSOR_TYPE_ROTATION_VECTOR;
@@ -112,7 +112,7 @@
 Sensor GyroDriftSensor::getSensor() const {
     sensor_t hwSensor;
     hwSensor.name       = "Gyroscope Bias (debug)";
-    hwSensor.vendor     = "Google Inc.";
+    hwSensor.vendor     = "AOSP";
     hwSensor.version    = 1;
     hwSensor.handle     = '_gbs';
     hwSensor.type       = SENSOR_TYPE_ACCELEROMETER;
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index a12529e..2fa5dbd 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -65,30 +65,26 @@
     }
 }
 
-void SensorDevice::dump(String8& result, char* buffer, size_t SIZE)
+void SensorDevice::dump(String8& result)
 {
     if (!mSensorModule) return;
     sensor_t const* list;
     ssize_t count = mSensorModule->get_sensors_list(mSensorModule, &list);
 
-    snprintf(buffer, SIZE, "%d h/w sensors:\n", int(count));
-    result.append(buffer);
+    result.appendFormat("%d h/w sensors:\n", int(count));
 
     Mutex::Autolock _l(mLock);
     for (size_t i=0 ; i<size_t(count) ; i++) {
         const Info& info = mActivationCount.valueFor(list[i].handle);
-        snprintf(buffer, SIZE, "handle=0x%08x, active-count=%d, rates(ms)={ ",
+        result.appendFormat("handle=0x%08x, active-count=%d, rates(ms)={ ",
                 list[i].handle,
                 info.rates.size());
-        result.append(buffer);
         for (size_t j=0 ; j<info.rates.size() ; j++) {
-            snprintf(buffer, SIZE, "%4.1f%s",
+            result.appendFormat("%4.1f%s",
                     info.rates.valueAt(j) / 1e6f,
                     j<info.rates.size()-1 ? ", " : "");
-            result.append(buffer);
         }
-        snprintf(buffer, SIZE, " }, selected=%4.1f ms\n",  info.delay / 1e6f);
-        result.append(buffer);
+        result.appendFormat(" }, selected=%4.1f ms\n",  info.delay / 1e6f);
     }
 }
 
diff --git a/services/sensorservice/SensorDevice.h b/services/sensorservice/SensorDevice.h
index 227dab6..b50e205 100644
--- a/services/sensorservice/SensorDevice.h
+++ b/services/sensorservice/SensorDevice.h
@@ -57,7 +57,7 @@
     status_t activate(void* ident, int handle, int enabled);
     status_t setDelay(void* ident, int handle, int64_t ns);
     void autoDisable(void *ident, int handle);
-    void dump(String8& result, char* buffer, size_t SIZE);
+    void dump(String8& result);
 };
 
 // ---------------------------------------------------------------------------
diff --git a/services/sensorservice/SensorFusion.cpp b/services/sensorservice/SensorFusion.cpp
index d23906d..4014477 100644
--- a/services/sensorservice/SensorFusion.cpp
+++ b/services/sensorservice/SensorFusion.cpp
@@ -28,6 +28,7 @@
       mEnabled(false), mGyroTime(0)
 {
     sensor_t const* list;
+    Sensor uncalibratedGyro;
     ssize_t count = mSensorDevice.getSensorList(&list);
     if (count > 0) {
         for (size_t i=0 ; i<size_t(count) ; i++) {
@@ -39,28 +40,38 @@
             }
             if (list[i].type == SENSOR_TYPE_GYROSCOPE) {
                 mGyro = Sensor(list + i);
-                // 200 Hz for gyro events is a good compromise between precision
-                // and power/cpu usage.
-                mGyroRate = 200;
-                mTargetDelayNs = 1000000000LL/mGyroRate;
+            }
+            if (list[i].type == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED) {
+                uncalibratedGyro = Sensor(list + i);
             }
         }
+
+        // Use the uncalibrated gyroscope for sensor fusion when available
+        if (uncalibratedGyro.getType() == SENSOR_TYPE_GYROSCOPE_UNCALIBRATED) {
+            mGyro = uncalibratedGyro;
+        }
+
+        // 200 Hz for gyro events is a good compromise between precision
+        // and power/cpu usage.
+        mEstimatedGyroRate = 200;
+        mTargetDelayNs = 1000000000LL/mEstimatedGyroRate;
         mFusion.init();
     }
 }
 
 void SensorFusion::process(const sensors_event_t& event) {
-    if (event.type == SENSOR_TYPE_GYROSCOPE) {
+    if (event.type == mGyro.getType()) {
         if (mGyroTime != 0) {
             const float dT = (event.timestamp - mGyroTime) / 1000000000.0f;
+            mFusion.handleGyro(vec3_t(event.data), dT);
+            // here we estimate the gyro rate (useful for debugging)
             const float freq = 1 / dT;
             if (freq >= 100 && freq<1000) { // filter values obviously wrong
                 const float alpha = 1 / (1 + dT); // 1s time-constant
-                mGyroRate = freq + (mGyroRate - freq)*alpha;
+                mEstimatedGyroRate = freq + (mEstimatedGyroRate - freq)*alpha;
             }
         }
         mGyroTime = event.timestamp;
-        mFusion.handleGyro(vec3_t(event.data), 1.0f/mGyroRate);
     } else if (event.type == SENSOR_TYPE_MAGNETIC_FIELD) {
         const vec3_t mag(event.data);
         mFusion.handleMag(mag);
@@ -125,14 +136,14 @@
     return mAcc.getMinDelay();
 }
 
-void SensorFusion::dump(String8& result, char* buffer, size_t SIZE) {
+void SensorFusion::dump(String8& result) {
     const Fusion& fusion(mFusion);
-    snprintf(buffer, SIZE, "9-axis fusion %s (%d clients), gyro-rate=%7.2fHz, "
+    result.appendFormat("9-axis fusion %s (%d clients), gyro-rate=%7.2fHz, "
             "q=< %g, %g, %g, %g > (%g), "
             "b=< %g, %g, %g >\n",
             mEnabled ? "enabled" : "disabled",
             mClients.size(),
-            mGyroRate,
+            mEstimatedGyroRate,
             fusion.getAttitude().x,
             fusion.getAttitude().y,
             fusion.getAttitude().z,
@@ -141,7 +152,6 @@
             fusion.getBias().x,
             fusion.getBias().y,
             fusion.getBias().z);
-    result.append(buffer);
 }
 
 // ---------------------------------------------------------------------------
diff --git a/services/sensorservice/SensorFusion.h b/services/sensorservice/SensorFusion.h
index 4c99bcb..432adbc 100644
--- a/services/sensorservice/SensorFusion.h
+++ b/services/sensorservice/SensorFusion.h
@@ -44,7 +44,7 @@
     Sensor mGyro;
     Fusion mFusion;
     bool mEnabled;
-    float mGyroRate;
+    float mEstimatedGyroRate;
     nsecs_t mTargetDelayNs;
     nsecs_t mGyroTime;
     vec4_t mAttitude;
@@ -60,7 +60,7 @@
     mat33_t getRotationMatrix() const { return mFusion.getRotationMatrix(); }
     vec4_t getAttitude() const { return mAttitude; }
     vec3_t getGyroBias() const { return mFusion.getBias(); }
-    float getEstimatedRate() const { return mGyroRate; }
+    float getEstimatedRate() const { return mEstimatedGyroRate; }
 
     status_t activate(void* ident, bool enabled);
     status_t setDelay(void* ident, int64_t ns);
@@ -68,7 +68,7 @@
     float getPowerUsage() const;
     int32_t getMinDelay() const;
 
-    void dump(String8& result, char* buffer, size_t SIZE);
+    void dump(String8& result);
 };
 
 
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 6481584..e3d2a60 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -93,6 +93,7 @@
                         orientationIndex = i;
                         break;
                     case SENSOR_TYPE_GYROSCOPE:
+                    case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
                         hasGyro = true;
                         break;
                     case SENSOR_TYPE_GRAVITY:
@@ -108,54 +109,44 @@
             // registered)
             const SensorFusion& fusion(SensorFusion::getInstance());
 
-            if (hasGyro) {
-                // Always instantiate Android's virtual sensors. Since they are
-                // instantiated behind sensors from the HAL, they won't
-                // interfere with applications, unless they looks specifically
-                // for them (by name).
-
-                registerVirtualSensor( new RotationVectorSensor() );
-                registerVirtualSensor( new GravitySensor(list, count) );
-                registerVirtualSensor( new LinearAccelerationSensor(list, count) );
-
-                // these are optional
-                registerVirtualSensor( new OrientationSensor() );
-                registerVirtualSensor( new CorrectedGyroSensor(list, count) );
-            }
-
             // build the sensor list returned to users
             mUserSensorList = mSensorList;
 
             if (hasGyro) {
+                Sensor aSensor;
+
+                // Add Android virtual sensors if they're not already
+                // available in the HAL
+
+                aSensor = registerVirtualSensor( new RotationVectorSensor() );
+                if (virtualSensorsNeeds & (1<<SENSOR_TYPE_ROTATION_VECTOR)) {
+                    mUserSensorList.add(aSensor);
+                }
+
+                aSensor = registerVirtualSensor( new GravitySensor(list, count) );
+                if (virtualSensorsNeeds & (1<<SENSOR_TYPE_GRAVITY)) {
+                    mUserSensorList.add(aSensor);
+                }
+
+                aSensor = registerVirtualSensor( new LinearAccelerationSensor(list, count) );
+                if (virtualSensorsNeeds & (1<<SENSOR_TYPE_LINEAR_ACCELERATION)) {
+                    mUserSensorList.add(aSensor);
+                }
+
+                aSensor = registerVirtualSensor( new OrientationSensor() );
+                if (virtualSensorsNeeds & (1<<SENSOR_TYPE_ROTATION_VECTOR)) {
+                    // if we are doing our own rotation-vector, also add
+                    // the orientation sensor and remove the HAL provided one.
+                    mUserSensorList.replaceAt(aSensor, orientationIndex);
+                }
+
                 // virtual debugging sensors are not added to mUserSensorList
+                registerVirtualSensor( new CorrectedGyroSensor(list, count) );
                 registerVirtualSensor( new GyroDriftSensor() );
             }
 
-            if (hasGyro &&
-                    (virtualSensorsNeeds & (1<<SENSOR_TYPE_ROTATION_VECTOR))) {
-                // if we have the fancy sensor fusion, and it's not provided by the
-                // HAL, use our own (fused) orientation sensor by removing the
-                // HAL supplied one form the user list.
-                if (orientationIndex >= 0) {
-                    mUserSensorList.removeItemsAt(orientationIndex);
-                }
-            }
-
             // debugging sensor list
-            for (size_t i=0 ; i<mSensorList.size() ; i++) {
-                switch (mSensorList[i].getType()) {
-                    case SENSOR_TYPE_GRAVITY:
-                    case SENSOR_TYPE_LINEAR_ACCELERATION:
-                    case SENSOR_TYPE_ROTATION_VECTOR:
-                        if (strstr(mSensorList[i].getVendor().string(), "Google")) {
-                            mUserSensorListDebug.add(mSensorList[i]);
-                        }
-                        break;
-                    default:
-                        mUserSensorListDebug.add(mSensorList[i]);
-                        break;
-                }
-            }
+            mUserSensorListDebug = mSensorList;
 
             run("SensorService", PRIORITY_URGENT_DISPLAY);
             mInitCheck = NO_ERROR;
@@ -163,7 +154,7 @@
     }
 }
 
-void SensorService::registerSensor(SensorInterface* s)
+Sensor SensorService::registerSensor(SensorInterface* s)
 {
     sensors_event_t event;
     memset(&event, 0, sizeof(event));
@@ -175,12 +166,15 @@
     mSensorMap.add(sensor.getHandle(), s);
     // create an entry in the mLastEventSeen array
     mLastEventSeen.add(sensor.getHandle(), event);
+
+    return sensor;
 }
 
-void SensorService::registerVirtualSensor(SensorInterface* s)
+Sensor SensorService::registerVirtualSensor(SensorInterface* s)
 {
-    registerSensor(s);
+    Sensor sensor = registerSensor(s);
     mVirtualSensorList.add( s );
+    return sensor;
 }
 
 SensorService::~SensorService()
@@ -193,47 +187,77 @@
 
 status_t SensorService::dump(int fd, const Vector<String16>& args)
 {
-    const size_t SIZE = 1024;
-    char buffer[SIZE];
     String8 result;
     if (!PermissionCache::checkCallingPermission(sDump)) {
-        snprintf(buffer, SIZE, "Permission Denial: "
+        result.appendFormat("Permission Denial: "
                 "can't dump SurfaceFlinger from pid=%d, uid=%d\n",
                 IPCThreadState::self()->getCallingPid(),
                 IPCThreadState::self()->getCallingUid());
-        result.append(buffer);
     } else {
         Mutex::Autolock _l(mLock);
-        snprintf(buffer, SIZE, "Sensor List:\n");
-        result.append(buffer);
+        result.append("Sensor List:\n");
         for (size_t i=0 ; i<mSensorList.size() ; i++) {
             const Sensor& s(mSensorList[i]);
             const sensors_event_t& e(mLastEventSeen.valueFor(s.getHandle()));
-            snprintf(buffer, SIZE,
-                    "%-48s| %-32s | 0x%08x | maxRate=%7.2fHz | "
-                    "last=<%5.1f,%5.1f,%5.1f>\n",
+            result.appendFormat(
+                    "%-48s| %-32s | 0x%08x | ",
                     s.getName().string(),
                     s.getVendor().string(),
-                    s.getHandle(),
-                    s.getMinDelay() ? (1000000.0f / s.getMinDelay()) : 0.0f,
-                    e.data[0], e.data[1], e.data[2]);
-            result.append(buffer);
-        }
-        SensorFusion::getInstance().dump(result, buffer, SIZE);
-        SensorDevice::getInstance().dump(result, buffer, SIZE);
+                    s.getHandle());
 
-        snprintf(buffer, SIZE, "%d active connections\n",
-                mActiveConnections.size());
-        result.append(buffer);
-        snprintf(buffer, SIZE, "Active sensors:\n");
-        result.append(buffer);
+            if (s.getMinDelay() > 0) {
+                result.appendFormat(
+                    "maxRate=%7.2fHz | ", 1e6f / s.getMinDelay());
+            } else {
+                result.append(s.getMinDelay() == 0
+                        ? "on-demand         | "
+                        : "one-shot          | ");
+            }
+
+            switch (s.getType()) {
+                case SENSOR_TYPE_ROTATION_VECTOR:
+                case SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR:
+                    result.appendFormat(
+                            "last=<%5.1f,%5.1f,%5.1f,%5.1f,%5.1f>\n",
+                            e.data[0], e.data[1], e.data[2], e.data[3], e.data[4]);
+                    break;
+                case SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED:
+                case SENSOR_TYPE_GYROSCOPE_UNCALIBRATED:
+                    result.appendFormat(
+                            "last=<%5.1f,%5.1f,%5.1f,%5.1f,%5.1f,%5.1f>\n",
+                            e.data[0], e.data[1], e.data[2], e.data[3], e.data[4], e.data[5]);
+                    break;
+                case SENSOR_TYPE_GAME_ROTATION_VECTOR:
+                    result.appendFormat(
+                            "last=<%5.1f,%5.1f,%5.1f,%5.1f>\n",
+                            e.data[0], e.data[1], e.data[2], e.data[3]);
+                    break;
+                case SENSOR_TYPE_SIGNIFICANT_MOTION:
+                case SENSOR_TYPE_STEP_DETECTOR:
+                    result.appendFormat( "last=<%f>\n", e.data[0]);
+                    break;
+                case SENSOR_TYPE_STEP_COUNTER:
+                    result.appendFormat( "last=<%llu>\n", e.u64.step_counter);
+                    break;
+                default:
+                    // default to 3 values
+                    result.appendFormat(
+                            "last=<%5.1f,%5.1f,%5.1f>\n",
+                            e.data[0], e.data[1], e.data[2]);
+                    break;
+            }
+        }
+        SensorFusion::getInstance().dump(result);
+        SensorDevice::getInstance().dump(result);
+
+        result.appendFormat("%d active connections\n", mActiveConnections.size());
+        result.append("Active sensors:\n");
         for (size_t i=0 ; i<mActiveSensors.size() ; i++) {
             int handle = mActiveSensors.keyAt(i);
-            snprintf(buffer, SIZE, "%s (handle=0x%08x, connections=%d)\n",
+            result.appendFormat("%s (handle=0x%08x, connections=%d)\n",
                     getSensorName(handle).string(),
                     handle,
                     mActiveSensors.valueAt(i)->getNumConnections());
-            result.append(buffer);
         }
     }
     write(fd, result.string(), result.size());
@@ -246,7 +270,8 @@
     status_t err = NO_ERROR;
     for (int i=0 ; i<count ; i++) {
         int handle = buffer[i].sensor;
-        if (getSensorType(handle) == SENSOR_TYPE_SIGNIFICANT_MOTION) {
+        int type = buffer[i].type;
+        if (type == SENSOR_TYPE_SIGNIFICANT_MOTION) {
             if (connection->hasSensor(handle)) {
                 sensor = mSensorMap.valueFor(handle);
                 if (sensor != NULL) {
@@ -283,7 +308,7 @@
         // Todo(): add a flag to the sensors definitions to indicate
         // the sensors which can wake up the AP
         for (int i = 0; i < count; i++) {
-            if (getSensorType(buffer[i].sensor) == SENSOR_TYPE_SIGNIFICANT_MOTION) {
+            if (buffer[i].type == SENSOR_TYPE_SIGNIFICANT_MOTION) {
                  acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_NAME);
                  wakeLockAcquired = true;
                  break;
@@ -335,7 +360,7 @@
         // handle backward compatibility for RotationVector sensor
         if (halVersion < SENSORS_DEVICE_API_VERSION_1_0) {
             for (int i = 0; i < count; i++) {
-                if (getSensorType(buffer[i].sensor) == SENSOR_TYPE_ROTATION_VECTOR) {
+                if (buffer[i].type == SENSOR_TYPE_ROTATION_VECTOR) {
                     // All the 4 components of the quaternion should be available
                     // No heading accuracy. Set it to -1
                     buffer[i].data[4] = -1;
@@ -423,18 +448,6 @@
     return result;
 }
 
-int SensorService::getSensorType(int handle) const {
-    size_t count = mUserSensorList.size();
-    for (size_t i=0 ; i<count ; i++) {
-        const Sensor& sensor(mUserSensorList[i]);
-        if (sensor.getHandle() == handle) {
-            return sensor.getType();
-        }
-    }
-    return -1;
-}
-
-
 Vector<Sensor> SensorService::getSensorList()
 {
     char value[PROPERTY_VALUE_MAX];
diff --git a/services/sensorservice/SensorService.h b/services/sensorservice/SensorService.h
index fcdbc7d..69e5dbb 100644
--- a/services/sensorservice/SensorService.h
+++ b/services/sensorservice/SensorService.h
@@ -50,12 +50,13 @@
         public BnSensorServer,
         protected Thread
 {
-   friend class BinderService<SensorService>;
+    friend class BinderService<SensorService>;
 
-   static const nsecs_t MINIMUM_EVENTS_PERIOD =   1000000; // 1000 Hz
-   static const char* WAKE_LOCK_NAME;
+    static const nsecs_t MINIMUM_EVENTS_PERIOD =   1000000; // 1000 Hz
+    static const char* WAKE_LOCK_NAME;
 
-            SensorService();
+    static char const* getServiceName() ANDROID_API { return "sensorservice"; }
+    SensorService() ANDROID_API;
     virtual ~SensorService();
 
     virtual void onFirstRef();
@@ -110,17 +111,16 @@
     DefaultKeyedVector<int, SensorInterface*> getActiveVirtualSensors() const;
 
     String8 getSensorName(int handle) const;
-    int getSensorType(int handle) const;
     void recordLastValue(sensors_event_t const * buffer, size_t count);
     static void sortEventBuffer(sensors_event_t* buffer, size_t count);
-    void registerSensor(SensorInterface* sensor);
-    void registerVirtualSensor(SensorInterface* sensor);
+    Sensor registerSensor(SensorInterface* sensor);
+    Sensor registerVirtualSensor(SensorInterface* sensor);
     status_t cleanupWithoutDisable(
             const sp<SensorEventConnection>& connection, int handle);
     status_t cleanupWithoutDisableLocked(
             const sp<SensorEventConnection>& connection, int handle);
     void cleanupAutoDisabledSensor(const sp<SensorEventConnection>& connection,
-        sensors_event_t const* buffer, const int count);
+            sensors_event_t const* buffer, const int count);
 
     // constants
     Vector<Sensor> mSensorList;
@@ -140,8 +140,6 @@
     KeyedVector<int32_t, sensors_event_t> mLastEventSeen;
 
 public:
-    static char const* getServiceName() { return "sensorservice"; }
-
     void cleanupConnection(SensorEventConnection* connection);
     status_t enable(const sp<SensorEventConnection>& connection, int handle);
     status_t disable(const sp<SensorEventConnection>& connection, int handle);
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index ec296d3..2ec575e 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -6,7 +6,6 @@
     DisplayDevice.cpp \
     EventThread.cpp \
     FrameTracker.cpp \
-    GLExtensions.cpp \
     Layer.cpp \
     LayerDim.cpp \
     MessageQueue.cpp \
@@ -18,6 +17,13 @@
     DisplayHardware/HWComposer.cpp \
     DisplayHardware/PowerHAL.cpp \
     DisplayHardware/VirtualDisplaySurface.cpp \
+    EventLog/EventLogTags.logtags \
+    EventLog/EventLog.cpp \
+    RenderEngine/GLExtensions.cpp \
+    RenderEngine/RenderEngine.cpp \
+    RenderEngine/GLES10RenderEngine.cpp \
+    RenderEngine/GLES11RenderEngine.cpp
+
 
 LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
 LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
@@ -41,6 +47,8 @@
   LOCAL_CFLAGS += -DNUM_FRAMEBUFFER_SURFACE_BUFFERS=$(NUM_FRAMEBUFFER_SURFACE_BUFFERS)
 endif
 
+LOCAL_CFLAGS += -fvisibility=hidden
+
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
 	liblog \
diff --git a/services/surfaceflinger/Colorizer.h b/services/surfaceflinger/Colorizer.h
new file mode 100644
index 0000000..6524481
--- /dev/null
+++ b/services/surfaceflinger/Colorizer.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SURFACE_FLINGER_COLORIZER_H
+#define ANDROID_SURFACE_FLINGER_COLORIZER_H
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class Colorizer {
+    bool mEnabled;
+public:
+    enum color {
+        RED     = 31,
+        GREEN   = 32,
+        YELLOW  = 33,
+        BLUE    = 34,
+        MAGENTA = 35,
+        CYAN    = 36,
+        WHITE   = 37
+    };
+
+    Colorizer(bool enabled)
+        : mEnabled(enabled) {
+    }
+
+    void colorize(String8& out, color c) {
+        if (mEnabled) {
+            out.appendFormat("\e[%dm", c);
+        }
+    }
+
+    void bold(String8& out) {
+        if (mEnabled) {
+            out.append("\e[1m");
+        }
+    }
+
+    void reset(String8& out) {
+        if (mEnabled) {
+            out.append("\e[0m");
+        }
+    }
+};
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+
+#endif /* ANDROID_SURFACE_FLINGER_COLORIZER_H */
diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 68b0b7f..c67f4d8 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -29,18 +29,14 @@
 
 #include <gui/Surface.h>
 
-#include <GLES/gl.h>
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-
 #include <hardware/gralloc.h>
 
 #include "DisplayHardware/DisplaySurface.h"
 #include "DisplayHardware/HWComposer.h"
+#include "RenderEngine/RenderEngine.h"
 
 #include "clz.h"
 #include "DisplayDevice.h"
-#include "GLExtensions.h"
 #include "SurfaceFlinger.h"
 #include "Layer.h"
 
@@ -48,20 +44,6 @@
 using namespace android;
 // ----------------------------------------------------------------------------
 
-static __attribute__((noinline))
-void checkGLErrors()
-{
-    do {
-        // there could be more than one error flag
-        GLenum error = glGetError();
-        if (error == GL_NO_ERROR)
-            break;
-        ALOGE("GL error 0x%04x", int(error));
-    } while(true);
-}
-
-// ----------------------------------------------------------------------------
-
 /*
  * Initialize the display to the specified values.
  *
@@ -189,7 +171,7 @@
 
 void DisplayDevice::flip(const Region& dirty) const
 {
-    checkGLErrors();
+    mFlinger->getRenderEngine().checkErrors();
 
     EGLDisplay dpy = mDisplay;
     EGLSurface surface = mSurface;
@@ -206,6 +188,25 @@
     mPageFlipCount++;
 }
 
+status_t DisplayDevice::prepareFrame(const HWComposer& hwc) const {
+    DisplaySurface::CompositionType compositionType;
+    bool haveGles = hwc.hasGlesComposition(mHwcDisplayId);
+    bool haveHwc = hwc.hasHwcComposition(mHwcDisplayId);
+    if (haveGles && haveHwc) {
+        compositionType = DisplaySurface::COMPOSITION_MIXED;
+    } else if (haveGles) {
+        compositionType = DisplaySurface::COMPOSITION_GLES;
+    } else if (haveHwc) {
+        compositionType = DisplaySurface::COMPOSITION_HWC;
+    } else {
+        // Nothing to do -- when turning the screen off we get a frame like
+        // this. Call it a HWC frame since we won't be doing any GLES work but
+        // will do a prepare/set cycle.
+        compositionType = DisplaySurface::COMPOSITION_HWC;
+    }
+    return mDisplaySurface->prepareFrame(compositionType);
+}
+
 void DisplayDevice::swapBuffers(HWComposer& hwc) const {
     // We need to call eglSwapBuffers() unless:
     // (a) there was no GLES composition this frame, or
@@ -246,28 +247,22 @@
     return mFlags;
 }
 
-EGLBoolean DisplayDevice::makeCurrent(EGLDisplay dpy,
-        const sp<const DisplayDevice>& hw, EGLContext ctx) {
+EGLBoolean DisplayDevice::makeCurrent(EGLDisplay dpy, EGLContext ctx) const {
     EGLBoolean result = EGL_TRUE;
     EGLSurface sur = eglGetCurrentSurface(EGL_DRAW);
-    if (sur != hw->mSurface) {
-        result = eglMakeCurrent(dpy, hw->mSurface, hw->mSurface, ctx);
+    if (sur != mSurface) {
+        result = eglMakeCurrent(dpy, mSurface, mSurface, ctx);
         if (result == EGL_TRUE) {
-            setViewportAndProjection(hw);
+            setViewportAndProjection();
         }
     }
     return result;
 }
 
-void DisplayDevice::setViewportAndProjection(const sp<const DisplayDevice>& hw) {
-    GLsizei w = hw->mDisplayWidth;
-    GLsizei h = hw->mDisplayHeight;
-    glViewport(0, 0, w, h);
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    // put the origin in the left-bottom corner
-    glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h
-    glMatrixMode(GL_MODELVIEW);
+void DisplayDevice::setViewportAndProjection() const {
+    size_t w = mDisplayWidth;
+    size_t h = mDisplayHeight;
+    mFlinger->getRenderEngine().setViewportAndProjection(w, h);
 }
 
 // ----------------------------------------------------------------------------
@@ -416,7 +411,7 @@
 
     mScissor = mGlobalTransform.transform(viewport);
     if (mScissor.isEmpty()) {
-        mScissor.set(getBounds());
+        mScissor = getBounds();
     }
 
     mOrientation = orientation;
@@ -424,9 +419,9 @@
     mFrame = frame;
 }
 
-void DisplayDevice::dump(String8& result, char* buffer, size_t SIZE) const {
+void DisplayDevice::dump(String8& result) const {
     const Transform& tr(mGlobalTransform);
-    snprintf(buffer, SIZE,
+    result.appendFormat(
         "+ DisplayDevice: %s\n"
         "   type=%x, hwcId=%d, layerStack=%u, (%4dx%4d), ANativeWindow=%p, orient=%2d (type=%08x), "
         "flips=%u, isSecure=%d, secureVis=%d, acquired=%d, numLayers=%u\n"
@@ -443,8 +438,6 @@
         tr[0][1], tr[1][1], tr[2][1],
         tr[0][2], tr[1][2], tr[2][2]);
 
-    result.append(buffer);
-
     String8 surfaceDump;
     mDisplaySurface->dump(surfaceDump);
     result.append(surfaceDump);
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 377d924..748be1a 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -119,6 +119,8 @@
     int32_t                 getHwcDisplayId() const { return mHwcDisplayId; }
     const wp<IBinder>&      getDisplayToken() const { return mDisplayToken; }
 
+    status_t prepareFrame(const HWComposer& hwc) const;
+
     void swapBuffers(HWComposer& hwc) const;
     status_t compositionComplete() const;
 
@@ -133,10 +135,8 @@
     void setDisplayName(const String8& displayName);
     const String8& getDisplayName() const { return mDisplayName; }
 
-    static EGLBoolean makeCurrent(EGLDisplay dpy,
-            const sp<const DisplayDevice>& hw, EGLContext ctx);
-
-    static void setViewportAndProjection(const sp<const DisplayDevice>& hw);
+    EGLBoolean makeCurrent(EGLDisplay dpy, EGLContext ctx) const;
+    void setViewportAndProjection() const;
 
     /* ------------------------------------------------------------------------
      * blank / unblank management
@@ -153,7 +153,7 @@
      * Debugging
      */
     uint32_t getPageFlipCount() const;
-    void dump(String8& result, char* buffer, size_t SIZE) const;
+    void dump(String8& result) const;
 
 private:
     /*
diff --git a/services/surfaceflinger/DisplayHardware/DisplaySurface.h b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
index 2eca3cb..b0f460d 100644
--- a/services/surfaceflinger/DisplayHardware/DisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/DisplaySurface.h
@@ -32,6 +32,18 @@
 public:
     virtual sp<IGraphicBufferProducer> getIGraphicBufferProducer() const = 0;
 
+    // prepareFrame is called after the composition configuration is known but
+    // before composition takes place. The DisplaySurface can use the
+    // composition type to decide how to manage the flow of buffers between
+    // GLES and HWC for this frame.
+    enum CompositionType {
+        COMPOSITION_UNKNOWN = 0,
+        COMPOSITION_GLES    = 1,
+        COMPOSITION_HWC     = 2,
+        COMPOSITION_MIXED   = COMPOSITION_GLES | COMPOSITION_HWC
+    };
+    virtual status_t prepareFrame(CompositionType compositionType) = 0;
+
     // Should be called when composition rendering is complete for a frame (but
     // eglSwapBuffers hasn't necessarily been called). Required by certain
     // older drivers for synchronization.
diff --git a/services/surfaceflinger/DisplayHardware/FloatRect.h b/services/surfaceflinger/DisplayHardware/FloatRect.h
new file mode 100644
index 0000000..b08a951
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/FloatRect.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SF_FLOAT_RECT
+#define ANDROID_SF_FLOAT_RECT
+
+#include <utils/TypeHelpers.h>
+
+namespace android {
+
+class FloatRect
+{
+public:
+    float left;
+    float top;
+    float right;
+    float bottom;
+
+    inline FloatRect() { }
+    inline FloatRect(const Rect& other)
+        : left(other.left), top(other.top), right(other.right), bottom(other.bottom) { }
+
+    inline float getWidth() const { return right - left; }
+    inline float getHeight() const { return bottom - top; }
+};
+
+}; // namespace android
+
+#endif // ANDROID_SF_FLOAT_RECT
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
index 54a3ce8..7987da3 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
@@ -72,6 +72,10 @@
     return getBufferQueue();
 }
 
+status_t FramebufferSurface::prepareFrame(CompositionType compositionType) {
+    return NO_ERROR;
+}
+
 status_t FramebufferSurface::advanceFrame() {
     // Once we remove FB HAL support, we can call nextBuffer() from here
     // instead of using onFrameAvailable(). No real benefit, except it'll be
@@ -83,7 +87,7 @@
     Mutex::Autolock lock(mMutex);
 
     BufferQueue::BufferItem item;
-    status_t err = acquireBufferLocked(&item);
+    status_t err = acquireBufferLocked(&item, 0);
     if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
         outBuffer = mCurrentBuffer;
         return NO_ERROR;
@@ -103,8 +107,8 @@
     if (mCurrentBufferSlot != BufferQueue::INVALID_BUFFER_SLOT &&
         item.mBuf != mCurrentBufferSlot) {
         // Release the previous buffer.
-        err = releaseBufferLocked(mCurrentBufferSlot, EGL_NO_DISPLAY,
-                EGL_NO_SYNC_KHR);
+        err = releaseBufferLocked(mCurrentBufferSlot, mCurrentBuffer,
+                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
         if (err != NO_ERROR && err != BufferQueue::STALE_BUFFER_SLOT) {
             ALOGE("error releasing buffer: %s (%d)", strerror(-err), err);
             return err;
@@ -144,7 +148,8 @@
     sp<Fence> fence = mHwc.getAndResetReleaseFence(mDisplayType);
     if (fence->isValid() &&
             mCurrentBufferSlot != BufferQueue::INVALID_BUFFER_SLOT) {
-        status_t err = addReleaseFence(mCurrentBufferSlot, fence);
+        status_t err = addReleaseFence(mCurrentBufferSlot,
+                mCurrentBuffer, fence);
         ALOGE_IF(err, "setReleaseFenceFd: failed to add the fence: %s (%d)",
                 strerror(-err), err);
     }
@@ -175,11 +180,10 @@
     ConsumerBase::dump(result);
 }
 
-void FramebufferSurface::dumpLocked(String8& result, const char* prefix,
-            char* buffer, size_t SIZE) const
+void FramebufferSurface::dumpLocked(String8& result, const char* prefix) const
 {
     mHwc.fbDump(result);
-    ConsumerBase::dumpLocked(result, prefix, buffer, SIZE);
+    ConsumerBase::dumpLocked(result, prefix);
 }
 
 // ----------------------------------------------------------------------------
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
index 2fde789..92a7f9b 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.h
@@ -41,6 +41,7 @@
 
     virtual sp<IGraphicBufferProducer> getIGraphicBufferProducer() const;
 
+    virtual status_t prepareFrame(CompositionType compositionType);
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
     virtual void onFrameCommitted();
@@ -55,8 +56,7 @@
     virtual void onFrameAvailable();
     virtual void freeBufferLocked(int slotIndex);
 
-    virtual void dumpLocked(String8& result, const char* prefix,
-            char* buffer, size_t SIZE) const;
+    virtual void dumpLocked(String8& result, const char* prefix) const;
 
     // nextBuffer waits for and then latches the next buffer from the
     // BufferQueue and releases the previously latched buffer to the
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index a9afbe5..f6256f9 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -16,14 +16,12 @@
 
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 
-// Uncomment this to remove support for HWC_DEVICE_API_VERSION_0_3 and older
-#define HWC_REMOVE_DEPRECATED_VERSIONS 1
-
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
+#include <math.h>
 
 #include <utils/CallStack.h>
 #include <utils/Errors.h>
@@ -50,9 +48,9 @@
 
 namespace android {
 
-// This is not a real HWC version. It's used for in-development features that
-// haven't been committed to a specific real HWC version.
-#define HWC_DEVICE_API_VERSION_1_EXP HARDWARE_DEVICE_API_VERSION_2(1, 0xFF, HWC_HEADER_VERSION)
+#ifndef HWC_DEVICE_API_VERSION_1_3
+#define HWC_DEVICE_API_VERSION_1_3 HARDWARE_DEVICE_API_VERSION_2(1, 3, HWC_HEADER_VERSION)
+#endif
 
 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
 
@@ -156,8 +154,8 @@
 
         // the number of displays we actually have depends on the
         // hw composer version
-        if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_EXP)) {
-            // 1.?? adds support for virtual displays
+        if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
+            // 1.3 adds support for virtual displays
             mNumDisplays = MAX_DISPLAYS;
         } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
             // 1.1 adds support for multiple displays
@@ -550,9 +548,6 @@
         // triggers a Surface::queueBuffer()  on some
         // devices (!?) -- log and ignore.
         ALOGE("HWComposer: framebufferTarget is null");
-//        CallStack stack;
-//        stack.update();
-//        stack.dump("");
         return NO_ERROR;
     }
 
@@ -585,7 +580,7 @@
         }
         mLists[i] = disp.list;
         if (mLists[i]) {
-            if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_EXP)) {
+            if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
                 mLists[i]->outbuf = NULL;
                 mLists[i]->outbufAcquireFenceFd = -1;
             } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
@@ -883,10 +878,25 @@
         getLayer()->transform = transform;
     }
     virtual void setFrame(const Rect& frame) {
-        reinterpret_cast<Rect&>(getLayer()->displayFrame) = frame;
+        getLayer()->displayFrame = reinterpret_cast<hwc_rect_t const&>(frame);
     }
-    virtual void setCrop(const Rect& crop) {
-        reinterpret_cast<Rect&>(getLayer()->sourceCrop) = crop;
+    virtual void setCrop(const FloatRect& crop) {
+        if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
+            getLayer()->sourceCropf = reinterpret_cast<hwc_frect_t const&>(crop);
+        } else {
+            /*
+             * Since h/w composer didn't support a flot crop rect before version 1.3,
+             * using integer coordinates instead produces a different output from the GL code in
+             * Layer::drawWithOpenGL(). The difference can be large if the buffer crop to
+             * window size ratio is large and a window crop is defined
+             * (i.e.: if we scale the buffer a lot and we also crop it with a window crop).
+             */
+            hwc_rect_t& r = getLayer()->sourceCrop;
+            r.left  = int(ceilf(crop.left));
+            r.top   = int(ceilf(crop.top));
+            r.right = int(floorf(crop.right));
+            r.bottom= int(floorf(crop.bottom));
+        }
     }
     virtual void setVisibleRegionScreen(const Region& reg) {
         // Region::getSharedBuffer creates a reference to the underlying
@@ -962,7 +972,7 @@
     return getLayerIterator(id, numLayers);
 }
 
-void HWComposer::dump(String8& result, char* buffer, size_t SIZE) const {
+void HWComposer::dump(String8& result) const {
     if (mHwc) {
         result.appendFormat("Hardware Composer state (version %8x):\n", hwcApiVersion(mHwc));
         result.appendFormat("  mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync);
@@ -1030,6 +1040,8 @@
     }
 
     if (mHwc && mHwc->dump) {
+        const size_t SIZE = 4096;
+        char buffer[SIZE];
         mHwc->dump(mHwc, buffer, SIZE);
         result.append(buffer);
     }
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 604de38..0462bcc 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -47,6 +47,7 @@
 
 class GraphicBuffer;
 class Fence;
+class FloatRect;
 class Region;
 class String8;
 class SurfaceFlinger;
@@ -158,7 +159,7 @@
         virtual void setBlending(uint32_t blending) = 0;
         virtual void setTransform(uint32_t transform) = 0;
         virtual void setFrame(const Rect& frame) = 0;
-        virtual void setCrop(const Rect& crop) = 0;
+        virtual void setCrop(const FloatRect& crop) = 0;
         virtual void setVisibleRegionScreen(const Region& reg) = 0;
         virtual void setBuffer(const sp<GraphicBuffer>& buffer) = 0;
         virtual void setAcquireFenceFd(int fenceFd) = 0;
@@ -275,7 +276,7 @@
     friend class VSyncThread;
 
     // for debugging ----------------------------------------------------------
-    void dump(String8& out, char* scratch, size_t SIZE) const;
+    void dump(String8& out) const;
 
 private:
     void loadHwcModule();
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index 2838b23..a324e94 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -14,27 +14,89 @@
  * limitations under the License.
  */
 
+// #define LOG_NDEBUG 0
 #include "VirtualDisplaySurface.h"
-
-#include <cutils/log.h>
-#include <gui/IGraphicBufferProducer.h>
+#include "HWComposer.h"
 
 // ---------------------------------------------------------------------------
 namespace android {
 // ---------------------------------------------------------------------------
 
+#define VDS_LOGE(msg, ...) ALOGE("[%s] "msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+#define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] "msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+#define VDS_LOGV(msg, ...) ALOGV("[%s] "msg, \
+        mDisplayName.string(), ##__VA_ARGS__)
+
+static const char* dbgCompositionTypeStr(DisplaySurface::CompositionType type) {
+    switch (type) {
+        case DisplaySurface::COMPOSITION_UNKNOWN: return "UNKNOWN";
+        case DisplaySurface::COMPOSITION_GLES:    return "GLES";
+        case DisplaySurface::COMPOSITION_HWC:     return "HWC";
+        case DisplaySurface::COMPOSITION_MIXED:   return "MIXED";
+        default:                                  return "<INVALID>";
+    }
+}
+
 VirtualDisplaySurface::VirtualDisplaySurface(HWComposer& hwc, int32_t dispId,
         const sp<IGraphicBufferProducer>& sink, const String8& name)
-:   mSink(sink)
+:   ConsumerBase(new BufferQueue(true)),
+    mHwc(hwc),
+    mDisplayId(dispId),
+    mDisplayName(name),
+    mProducerUsage(GRALLOC_USAGE_HW_COMPOSER),
+    mProducerSlotSource(0),
+    mDbgState(DBG_STATE_IDLE),
+    mDbgLastCompositionType(COMPOSITION_UNKNOWN)
 {
-    LOG_ALWAYS_FATAL_IF(dispId >= 0);
+    mSource[SOURCE_SINK] = sink;
+    mSource[SOURCE_SCRATCH] = mBufferQueue;
+
+    resetPerFrameState();
+
+    int sinkWidth, sinkHeight;
+    mSource[SOURCE_SINK]->query(NATIVE_WINDOW_WIDTH, &sinkWidth);
+    mSource[SOURCE_SINK]->query(NATIVE_WINDOW_HEIGHT, &sinkHeight);
+
+    ConsumerBase::mName = String8::format("VDS: %s", mDisplayName.string());
+    mBufferQueue->setConsumerName(ConsumerBase::mName);
+    mBufferQueue->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER);
+    mBufferQueue->setDefaultBufferSize(sinkWidth, sinkHeight);
+    mBufferQueue->setDefaultMaxBufferCount(2);
 }
 
 VirtualDisplaySurface::~VirtualDisplaySurface() {
 }
 
 sp<IGraphicBufferProducer> VirtualDisplaySurface::getIGraphicBufferProducer() const {
-    return mSink;
+    if (mDisplayId >= 0) {
+        return static_cast<IGraphicBufferProducer*>(
+                const_cast<VirtualDisplaySurface*>(this));
+    } else {
+        // There won't be any interaction with HWC for this virtual display,
+        // so the GLES driver can pass buffers directly to the sink.
+        return mSource[SOURCE_SINK];
+    }
+}
+
+status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) {
+    if (mDisplayId < 0)
+        return NO_ERROR;
+
+    VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE,
+            "Unexpected prepareFrame() in %s state", dbgStateStr());
+    mDbgState = DBG_STATE_PREPARED;
+
+    mCompositionType = compositionType;
+
+    if (mCompositionType != mDbgLastCompositionType) {
+        VDS_LOGV("prepareFrame: composition type changed to %s",
+                dbgCompositionTypeStr(mCompositionType));
+        mDbgLastCompositionType = mCompositionType;
+    }
+
+    return NO_ERROR;
 }
 
 status_t VirtualDisplaySurface::compositionComplete() {
@@ -42,15 +104,319 @@
 }
 
 status_t VirtualDisplaySurface::advanceFrame() {
-    return NO_ERROR;
+    if (mDisplayId < 0)
+        return NO_ERROR;
+
+    if (mCompositionType == COMPOSITION_HWC) {
+        VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED,
+                "Unexpected advanceFrame() in %s state on HWC frame",
+                dbgStateStr());
+    } else {
+        VDS_LOGW_IF(mDbgState != DBG_STATE_GLES_DONE,
+                "Unexpected advanceFrame() in %s state on GLES/MIXED frame",
+                dbgStateStr());
+    }
+    mDbgState = DBG_STATE_HWC;
+
+    status_t result;
+    sp<Fence> outFence;
+    if (mCompositionType != COMPOSITION_GLES) {
+        // Dequeue an output buffer from the sink
+        uint32_t transformHint, numPendingBuffers;
+        mQueueBufferOutput.deflate(&mSinkBufferWidth, &mSinkBufferHeight,
+                &transformHint, &numPendingBuffers);
+        int sslot;
+        result = dequeueBuffer(SOURCE_SINK, 0, &sslot, &outFence);
+        if (result < 0)
+            return result;
+        mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot);
+    }
+
+    if (mCompositionType == COMPOSITION_HWC) {
+        // We just dequeued the output buffer, use it for FB as well
+        mFbProducerSlot = mOutputProducerSlot;
+        mFbFence = outFence;
+    } else if (mCompositionType == COMPOSITION_GLES) {
+        mOutputProducerSlot = mFbProducerSlot;
+        outFence = mFbFence;
+    } else {
+        // mFbFence and mFbProducerSlot were set in queueBuffer,
+        // and mOutputProducerSlot and outFence were set above when dequeueing
+        // the sink buffer.
+    }
+
+    if (mFbProducerSlot < 0 || mOutputProducerSlot < 0) {
+        // Last chance bailout if something bad happened earlier. For example,
+        // in a GLES configuration, if the sink disappears then dequeueBuffer
+        // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger
+        // will soldier on. So we end up here without a buffer. There should
+        // be lots of scary messages in the log just before this.
+        VDS_LOGE("advanceFrame: no buffer, bailing out");
+        return NO_MEMORY;
+    }
+
+    sp<GraphicBuffer> fbBuffer = mProducerBuffers[mFbProducerSlot];
+    sp<GraphicBuffer> outBuffer = mProducerBuffers[mOutputProducerSlot];
+    VDS_LOGV("advanceFrame: fb=%d(%p) out=%d(%p)",
+            mFbProducerSlot, fbBuffer.get(),
+            mOutputProducerSlot, outBuffer.get());
+
+    result = mHwc.fbPost(mDisplayId, mFbFence, fbBuffer);
+    if (result == NO_ERROR) {
+        result = mHwc.setOutputBuffer(mDisplayId, outFence, outBuffer);
+    }
+
+    return result;
 }
 
 void VirtualDisplaySurface::onFrameCommitted() {
+    if (mDisplayId < 0)
+        return;
+
+    VDS_LOGW_IF(mDbgState != DBG_STATE_HWC,
+            "Unexpected onFrameCommitted() in %s state", dbgStateStr());
+    mDbgState = DBG_STATE_IDLE;
+
+    sp<Fence> fbFence = mHwc.getAndResetReleaseFence(mDisplayId);
+    if (mCompositionType == COMPOSITION_MIXED && mFbProducerSlot >= 0) {
+        // release the scratch buffer back to the pool
+        Mutex::Autolock lock(mMutex);
+        int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, mFbProducerSlot);
+        VDS_LOGV("onFrameCommitted: release scratch sslot=%d", sslot);
+        addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], fbFence);
+        releaseBufferLocked(sslot, mProducerBuffers[mFbProducerSlot],
+                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR);
+    }
+
+    if (mOutputProducerSlot >= 0) {
+        int sslot = mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot);
+        QueueBufferOutput qbo;
+        sp<Fence> outFence = mHwc.getLastRetireFence(mDisplayId);
+        VDS_LOGV("onFrameCommitted: queue sink sslot=%d", sslot);
+        status_t result = mSource[SOURCE_SINK]->queueBuffer(sslot,
+                QueueBufferInput(systemTime(),
+                    Rect(mSinkBufferWidth, mSinkBufferHeight),
+                    NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, outFence),
+                &qbo);
+        if (result == NO_ERROR) {
+            updateQueueBufferOutput(qbo);
+        }
+    }
+
+    resetPerFrameState();
 }
 
 void VirtualDisplaySurface::dump(String8& result) const {
 }
 
+status_t VirtualDisplaySurface::requestBuffer(int pslot,
+        sp<GraphicBuffer>* outBuf) {
+    VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
+            "Unexpected requestBuffer pslot=%d in %s state",
+            pslot, dbgStateStr());
+
+    *outBuf = mProducerBuffers[pslot];
+    return NO_ERROR;
+}
+
+status_t VirtualDisplaySurface::setBufferCount(int bufferCount) {
+    return mSource[SOURCE_SINK]->setBufferCount(bufferCount);
+}
+
+status_t VirtualDisplaySurface::dequeueBuffer(Source source,
+        uint32_t format, int* sslot, sp<Fence>* fence) {
+    status_t result = mSource[source]->dequeueBuffer(sslot, fence,
+            mSinkBufferWidth, mSinkBufferHeight, format, mProducerUsage);
+    if (result < 0)
+        return result;
+    int pslot = mapSource2ProducerSlot(source, *sslot);
+    VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d",
+            dbgSourceStr(source), *sslot, pslot, result);
+    uint32_t sourceBit = static_cast<uint32_t>(source) << pslot;
+
+    if ((mProducerSlotSource & (1u << pslot)) != sourceBit) {
+        // This slot was previously dequeued from the other source; must
+        // re-request the buffer.
+        result |= BUFFER_NEEDS_REALLOCATION;
+        mProducerSlotSource &= ~(1u << pslot);
+        mProducerSlotSource |= sourceBit;
+    }
+
+    if (result & RELEASE_ALL_BUFFERS) {
+        for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
+            if ((mProducerSlotSource & (1u << i)) == sourceBit)
+                mProducerBuffers[i].clear();
+        }
+    }
+    if (result & BUFFER_NEEDS_REALLOCATION) {
+        mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]);
+        VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p",
+                dbgSourceStr(source), pslot, mProducerBuffers[pslot].get());
+    }
+
+    return result;
+}
+
+status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence,
+        uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
+    VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED,
+            "Unexpected dequeueBuffer() in %s state", dbgStateStr());
+    mDbgState = DBG_STATE_GLES;
+
+    VDS_LOGV("dequeueBuffer %dx%d fmt=%d usage=%#x", w, h, format, usage);
+
+    mProducerUsage = usage | GRALLOC_USAGE_HW_COMPOSER;
+    Source source = fbSourceForCompositionType(mCompositionType);
+    if (source == SOURCE_SINK) {
+        mSinkBufferWidth = w;
+        mSinkBufferHeight = h;
+    }
+
+    int sslot;
+    status_t result = dequeueBuffer(source, format, &sslot, fence);
+    if (result >= 0) {
+        *pslot = mapSource2ProducerSlot(source, sslot);
+    }
+    return result;
+}
+
+status_t VirtualDisplaySurface::queueBuffer(int pslot,
+        const QueueBufferInput& input, QueueBufferOutput* output) {
+    VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
+            "Unexpected queueBuffer(pslot=%d) in %s state", pslot,
+            dbgStateStr());
+    mDbgState = DBG_STATE_GLES_DONE;
+
+    VDS_LOGV("queueBuffer pslot=%d", pslot);
+
+    status_t result;
+    if (mCompositionType == COMPOSITION_MIXED) {
+        // Queue the buffer back into the scratch pool
+        QueueBufferOutput scratchQBO;
+        int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, pslot);
+        result = mBufferQueue->queueBuffer(sslot, input, &scratchQBO);
+        if (result != NO_ERROR)
+            return result;
+
+        // Now acquire the buffer from the scratch pool -- should be the same
+        // slot and fence as we just queued.
+        Mutex::Autolock lock(mMutex);
+        BufferQueue::BufferItem item;
+        result = acquireBufferLocked(&item, 0);
+        if (result != NO_ERROR)
+            return result;
+        VDS_LOGW_IF(item.mBuf != sslot,
+                "queueBuffer: acquired sslot %d from SCRATCH after queueing sslot %d",
+                item.mBuf, sslot);
+        mFbProducerSlot = mapSource2ProducerSlot(SOURCE_SCRATCH, item.mBuf);
+        mFbFence = mSlots[item.mBuf].mFence;
+
+    } else {
+        LOG_FATAL_IF(mCompositionType != COMPOSITION_GLES,
+                "Unexpected queueBuffer in state %s for compositionType %s",
+                dbgStateStr(), dbgCompositionTypeStr(mCompositionType));
+
+        // Extract the GLES release fence for HWC to acquire
+        int64_t timestamp;
+        Rect crop;
+        int scalingMode;
+        uint32_t transform;
+        input.deflate(&timestamp, &crop, &scalingMode, &transform,
+                &mFbFence);
+
+        mFbProducerSlot = pslot;
+    }
+
+    *output = mQueueBufferOutput;
+    return NO_ERROR;
+}
+
+void VirtualDisplaySurface::cancelBuffer(int pslot, const sp<Fence>& fence) {
+    VDS_LOGW_IF(mDbgState != DBG_STATE_GLES,
+            "Unexpected cancelBuffer(pslot=%d) in %s state", pslot,
+            dbgStateStr());
+    VDS_LOGV("cancelBuffer pslot=%d", pslot);
+    Source source = fbSourceForCompositionType(mCompositionType);
+    return mSource[source]->cancelBuffer(
+            mapProducer2SourceSlot(source, pslot), fence);
+}
+
+int VirtualDisplaySurface::query(int what, int* value) {
+    return mSource[SOURCE_SINK]->query(what, value);
+}
+
+status_t VirtualDisplaySurface::setSynchronousMode(bool enabled) {
+    return mSource[SOURCE_SINK]->setSynchronousMode(enabled);
+}
+
+status_t VirtualDisplaySurface::connect(int api, QueueBufferOutput* output) {
+    QueueBufferOutput qbo;
+    status_t result = mSource[SOURCE_SINK]->connect(api, &qbo);
+    if (result == NO_ERROR) {
+        updateQueueBufferOutput(qbo);
+        *output = mQueueBufferOutput;
+    }
+    return result;
+}
+
+status_t VirtualDisplaySurface::disconnect(int api) {
+    return mSource[SOURCE_SINK]->disconnect(api);
+}
+
+void VirtualDisplaySurface::updateQueueBufferOutput(
+        const QueueBufferOutput& qbo) {
+    uint32_t w, h, transformHint, numPendingBuffers;
+    qbo.deflate(&w, &h, &transformHint, &numPendingBuffers);
+    mQueueBufferOutput.inflate(w, h, 0, numPendingBuffers);
+}
+
+void VirtualDisplaySurface::resetPerFrameState() {
+    mCompositionType = COMPOSITION_UNKNOWN;
+    mSinkBufferWidth = 0;
+    mSinkBufferHeight = 0;
+    mFbFence = Fence::NO_FENCE;
+    mFbProducerSlot = -1;
+    mOutputProducerSlot = -1;
+}
+
+// This slot mapping function is its own inverse, so two copies are unnecessary.
+// Both are kept to make the intent clear where the function is called, and for
+// the (unlikely) chance that we switch to a different mapping function.
+int VirtualDisplaySurface::mapSource2ProducerSlot(Source source, int sslot) {
+    if (source == SOURCE_SCRATCH) {
+        return BufferQueue::NUM_BUFFER_SLOTS - sslot - 1;
+    } else {
+        return sslot;
+    }
+}
+int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) {
+    return mapSource2ProducerSlot(source, pslot);
+}
+
+VirtualDisplaySurface::Source
+VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) {
+    return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK;
+}
+
+const char* VirtualDisplaySurface::dbgStateStr() const {
+    switch (mDbgState) {
+        case DBG_STATE_IDLE:      return "IDLE";
+        case DBG_STATE_PREPARED:  return "PREPARED";
+        case DBG_STATE_GLES:      return "GLES";
+        case DBG_STATE_GLES_DONE: return "GLES_DONE";
+        case DBG_STATE_HWC:       return "HWC";
+        default:                  return "INVALID";
+    }
+}
+
+const char* VirtualDisplaySurface::dbgSourceStr(Source s) {
+    switch (s) {
+        case SOURCE_SINK:    return "SINK";
+        case SOURCE_SCRATCH: return "SCRATCH";
+        default:             return "INVALID";
+    }
+}
+
 // ---------------------------------------------------------------------------
 } // namespace android
 // ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index f321795..2b4cf8f 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -17,6 +17,9 @@
 #ifndef ANDROID_SF_VIRTUAL_DISPLAY_SURFACE_H
 #define ANDROID_SF_VIRTUAL_DISPLAY_SURFACE_H
 
+#include <gui/ConsumerBase.h>
+#include <gui/IGraphicBufferProducer.h>
+
 #include "DisplaySurface.h"
 
 // ---------------------------------------------------------------------------
@@ -25,26 +28,187 @@
 
 class HWComposer;
 
-/* This DisplaySurface implementation is a stub used for developing HWC
- * virtual display support. It is currently just a passthrough.
+/* This DisplaySurface implementation supports virtual displays, where GLES
+ * and/or HWC compose into a buffer that is then passed to an arbitrary
+ * consumer (the sink) running in another process.
+ *
+ * The simplest case is when the virtual display will never use the h/w
+ * composer -- either the h/w composer doesn't support writing to buffers, or
+ * there are more virtual displays than it supports simultaneously. In this
+ * case, the GLES driver works directly with the output buffer queue, and
+ * calls to the VirtualDisplay from SurfaceFlinger and DisplayHardware do
+ * nothing.
+ *
+ * If h/w composer might be used, then each frame will fall into one of three
+ * configurations: GLES-only, HWC-only, and MIXED composition. In all of these,
+ * we must provide a FB target buffer and output buffer for the HWC set() call.
+ *
+ * In GLES-only composition, the GLES driver is given a buffer from the sink to
+ * render into. When the GLES driver queues the buffer to the
+ * VirtualDisplaySurface, the VirtualDisplaySurface holds onto it instead of
+ * immediately queueing it to the sink. The buffer is used as both the FB
+ * target and output buffer for HWC, though on these frames the HWC doesn't
+ * do any work for this display and doesn't write to the output buffer. After
+ * composition is complete, the buffer is queued to the sink.
+ *
+ * In HWC-only composition, the VirtualDisplaySurface dequeues a buffer from
+ * the sink and passes it to HWC as both the FB target buffer and output
+ * buffer. The HWC doesn't need to read from the FB target buffer, but does
+ * write to the output buffer. After composition is complete, the buffer is
+ * queued to the sink.
+ *
+ * On MIXED frames, things become more complicated, since some h/w composer
+ * implementations can't read from and write to the same buffer. This class has
+ * an internal BufferQueue that it uses as a scratch buffer pool. The GLES
+ * driver is given a scratch buffer to render into. When it finishes rendering,
+ * the buffer is queued and then immediately acquired by the
+ * VirtualDisplaySurface. The scratch buffer is then used as the FB target
+ * buffer for HWC, and a separate buffer is dequeued from the sink and used as
+ * the HWC output buffer. When HWC composition is complete, the scratch buffer
+ * is released and the output buffer is queued to the sink.
  */
-class VirtualDisplaySurface : public DisplaySurface {
+class VirtualDisplaySurface : public DisplaySurface,
+                              private BnGraphicBufferProducer,
+                              private ConsumerBase {
 public:
     VirtualDisplaySurface(HWComposer& hwc, int32_t dispId,
             const sp<IGraphicBufferProducer>& sink,
             const String8& name);
 
+    //
+    // DisplaySurface interface
+    //
     virtual sp<IGraphicBufferProducer> getIGraphicBufferProducer() const;
-
+    virtual status_t prepareFrame(CompositionType compositionType);
     virtual status_t compositionComplete();
     virtual status_t advanceFrame();
     virtual void onFrameCommitted();
     virtual void dump(String8& result) const;
 
 private:
+    enum Source {SOURCE_SINK = 0, SOURCE_SCRATCH = 1};
+
     virtual ~VirtualDisplaySurface();
 
-    sp<IGraphicBufferProducer> mSink;
+    //
+    // IGraphicBufferProducer interface, used by the GLES driver.
+    //
+    virtual status_t requestBuffer(int pslot, sp<GraphicBuffer>* outBuf);
+    virtual status_t setBufferCount(int bufferCount);
+    virtual status_t dequeueBuffer(int* pslot, sp<Fence>* fence,
+            uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
+    virtual status_t queueBuffer(int pslot,
+            const QueueBufferInput& input, QueueBufferOutput* output);
+    virtual void cancelBuffer(int pslot, const sp<Fence>& fence);
+    virtual int query(int what, int* value);
+    virtual status_t setSynchronousMode(bool enabled);
+    virtual status_t connect(int api, QueueBufferOutput* output);
+    virtual status_t disconnect(int api);
+
+    //
+    // Utility methods
+    //
+    static Source fbSourceForCompositionType(CompositionType type);
+    status_t dequeueBuffer(Source source, uint32_t format,
+            int* sslot, sp<Fence>* fence);
+    void updateQueueBufferOutput(const QueueBufferOutput& qbo);
+    void resetPerFrameState();
+
+    // Both the sink and scratch buffer pools have their own set of slots
+    // ("source slots", or "sslot"). We have to merge these into the single
+    // set of slots used by the GLES producer ("producer slots" or "pslot") and
+    // internally in the VirtualDisplaySurface. To minimize the number of times
+    // a producer slot switches which source it comes from, we map source slot
+    // numbers to producer slot numbers differently for each source.
+    static int mapSource2ProducerSlot(Source source, int sslot);
+    static int mapProducer2SourceSlot(Source source, int pslot);
+
+    //
+    // Immutable after construction
+    //
+    HWComposer& mHwc;
+    const int32_t mDisplayId;
+    const String8 mDisplayName;
+    sp<IGraphicBufferProducer> mSource[2]; // indexed by SOURCE_*
+
+    //
+    // Inter-frame state
+    //
+
+    // To avoid buffer reallocations, we track the buffer usage requested by
+    // the GLES driver in dequeueBuffer so we can use the same flags on
+    // HWC-only frames.
+    uint32_t mProducerUsage;
+
+    // Since we present a single producer interface to the GLES driver, but
+    // are internally muxing between the sink and scratch producers, we have
+    // to keep track of which source last returned each producer slot from
+    // dequeueBuffer. Each bit in mLastSlotSource corresponds to a producer
+    // slot. Both mProducerSlotSource and mProducerBuffers are indexed by a
+    // "producer slot"; see the mapSlot*() functions.
+    uint32_t mProducerSlotSource;
+    sp<GraphicBuffer> mProducerBuffers[BufferQueue::NUM_BUFFER_SLOTS];
+
+    // The QueueBufferOutput with the latest info from the sink, and with the
+    // transform hint cleared. Since we defer queueBuffer from the GLES driver
+    // to the sink, we have to return the previous version.
+    QueueBufferOutput mQueueBufferOutput;
+
+    //
+    // Intra-frame state
+    //
+
+    // Composition type and GLES buffer source for the current frame.
+    // Valid after prepareFrame(), cleared in onFrameCommitted.
+    CompositionType mCompositionType;
+
+    // Details of the current sink buffer. These become valid when a buffer is
+    // dequeued from the sink, and are used when queueing the buffer.
+    uint32_t mSinkBufferWidth, mSinkBufferHeight;
+
+    // mFbFence is the fence HWC should wait for before reading the framebuffer
+    // target buffer.
+    sp<Fence> mFbFence;
+
+    // Producer slot numbers for the buffers to use for HWC framebuffer target
+    // and output.
+    int mFbProducerSlot;
+    int mOutputProducerSlot;
+
+    // Debug only -- track the sequence of events in each frame so we can make
+    // sure they happen in the order we expect. This class implicitly models
+    // a state machine; this enum/variable makes it explicit.
+    //
+    // +-----------+-------------------+-------------+
+    // | State     | Event             || Next State |
+    // +-----------+-------------------+-------------+
+    // | IDLE      | prepareFrame      || PREPARED   |
+    // | PREPARED  | dequeueBuffer [1] || GLES       |
+    // | PREPARED  | advanceFrame [2]  || HWC        |
+    // | GLES      | queueBuffer       || GLES_DONE  |
+    // | GLES_DONE | advanceFrame      || HWC        |
+    // | HWC       | onFrameCommitted  || IDLE       |
+    // +-----------+-------------------++------------+
+    // [1] COMPOSITION_GLES and COMPOSITION_MIXED frames.
+    // [2] COMPOSITION_HWC frames.
+    //
+    enum DbgState {
+        // no buffer dequeued, don't know anything about the next frame
+        DBG_STATE_IDLE,
+        // no buffer dequeued, but we know the buffer source for the frame
+        DBG_STATE_PREPARED,
+        // GLES driver has a buffer dequeued
+        DBG_STATE_GLES,
+        // GLES driver has queued the buffer, we haven't sent it to HWC yet
+        DBG_STATE_GLES_DONE,
+        // HWC has the buffer for this frame
+        DBG_STATE_HWC,
+    };
+    DbgState mDbgState;
+    CompositionType mDbgLastCompositionType;
+
+    const char* dbgStateStr() const;
+    static const char* dbgSourceStr(Source s);
 };
 
 // ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/EventLog/EventLog.cpp b/services/surfaceflinger/EventLog/EventLog.cpp
new file mode 100644
index 0000000..815242b
--- /dev/null
+++ b/services/surfaceflinger/EventLog/EventLog.cpp
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <cutils/log.h>
+#include <utils/String8.h>
+
+#include "EventLog.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+ANDROID_SINGLETON_STATIC_INSTANCE(EventLog)
+
+
+EventLog::EventLog() {
+}
+
+void EventLog::doLogJank(const String8& window, int32_t value) {
+    EventLog::TagBuffer buffer(LOGTAG_SF_JANK);
+    buffer.startList(2);
+    buffer.writeString8(window);
+    buffer.writeInt32(value);
+    buffer.endList();
+    buffer.log();
+}
+
+void EventLog::logJank(const String8& window, int32_t value) {
+    EventLog::getInstance().doLogJank(window, value);
+}
+
+// ---------------------------------------------------------------------------
+
+EventLog::TagBuffer::TagBuffer(int32_t tag)
+    : mPos(0), mTag(tag), mOverflow(false) {
+}
+
+void EventLog::TagBuffer::log() {
+    if (mOverflow) {
+        ALOGW("couldn't log to binary event log: overflow.");
+    } else if (android_bWriteLog(mTag, mStorage, mPos) < 0) {
+        ALOGE("couldn't log to EventLog: %s", strerror(errno));
+    }
+    // purge the buffer
+    mPos = 0;
+    mOverflow = false;
+}
+
+void EventLog::TagBuffer::startList(int8_t count) {
+    if (mOverflow) return;
+    const size_t needed = 1 + sizeof(count);
+    if (mPos + needed > STORAGE_MAX_SIZE) {
+        mOverflow = true;
+        return;
+    }
+    mStorage[mPos + 0] = EVENT_TYPE_LIST;
+    mStorage[mPos + 1] = count;
+    mPos += needed;
+}
+
+void EventLog::TagBuffer::endList() {
+    if (mOverflow) return;
+    const size_t needed = 1;
+    if (mPos + needed > STORAGE_MAX_SIZE) {
+        mOverflow = true;
+        return;
+    }
+    mStorage[mPos + 0] = '\n';
+    mPos += needed;
+}
+
+void EventLog::TagBuffer::writeInt32(int32_t value) {
+    if (mOverflow) return;
+    const size_t needed = 1 + sizeof(value);
+    if (mPos + needed > STORAGE_MAX_SIZE) {
+        mOverflow = true;
+        return;
+    }
+    mStorage[mPos + 0] = EVENT_TYPE_INT;
+    memcpy(&mStorage[mPos + 1], &value, sizeof(value));
+    mPos += needed;
+}
+
+void EventLog::TagBuffer::writeInt64(int64_t value) {
+    if (mOverflow) return;
+    const size_t needed = 1 + sizeof(value);
+    if (mPos + needed > STORAGE_MAX_SIZE) {
+        mOverflow = true;
+        return;
+    }
+    mStorage[mPos + 0] = EVENT_TYPE_LONG;
+    memcpy(&mStorage[mPos + 1], &value, sizeof(value));
+    mPos += needed;
+}
+
+void EventLog::TagBuffer::writeString8(const String8& value) {
+    if (mOverflow) return;
+    const int32_t stringLen = value.length();
+    const size_t needed = 1 + sizeof(int32_t) + stringLen;
+    if (mPos + needed > STORAGE_MAX_SIZE) {
+        mOverflow = true;
+        return;
+    }
+    mStorage[mPos + 0] = EVENT_TYPE_STRING;
+    memcpy(&mStorage[mPos + 1], &stringLen, sizeof(int32_t));
+    memcpy(&mStorage[mPos + 5], value.string(), stringLen);
+    mPos += needed;
+}
+
+// ---------------------------------------------------------------------------
+}// namespace android
+
+// ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/EventLog/EventLog.h b/services/surfaceflinger/EventLog/EventLog.h
new file mode 100644
index 0000000..2f1cd9b
--- /dev/null
+++ b/services/surfaceflinger/EventLog/EventLog.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <utils/Errors.h>
+#include <utils/Singleton.h>
+
+#ifndef ANDROID_SF_EVENTLOG_H
+#define ANDROID_SF_EVENTLOG_H
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class String8;
+
+class EventLog : public Singleton<EventLog> {
+
+public:
+    static void logJank(const String8& window, int32_t value);
+
+protected:
+    EventLog();
+
+private:
+    /*
+     * EventLogBuffer is a helper class to construct an in-memory event log
+     * tag. In this version the buffer is not dynamic, so write operation can
+     * fail if there is not enough space in the temporary buffer.
+     * Once constructed, the buffer can be logger by calling the log()
+     * method.
+     */
+
+    class TagBuffer {
+        enum { STORAGE_MAX_SIZE = 128 };
+        int32_t mPos;
+        int32_t mTag;
+        bool mOverflow;
+        char mStorage[STORAGE_MAX_SIZE];
+    public:
+        TagBuffer(int32_t tag);
+
+        // starts list of items
+        void startList(int8_t count);
+        // terminates the list
+        void endList();
+        // write a 32-bit integer
+        void writeInt32(int32_t value);
+        // write a 64-bit integer
+        void writeInt64(int64_t value);
+        // write a C string
+        void writeString8(const String8& value);
+
+        // outputs the the buffer to the log
+        void log();
+    };
+
+    friend class Singleton<EventLog>;
+    EventLog(const EventLog&);
+    EventLog& operator =(const EventLog&);
+
+    enum { LOGTAG_SF_JANK = 60100 };
+    void doLogJank(const String8& window, int32_t value);
+};
+
+// ---------------------------------------------------------------------------
+}// namespace android
+// ---------------------------------------------------------------------------
+
+#endif /* ANDROID_SF_EVENTLOG_H */
diff --git a/services/surfaceflinger/EventLog/EventLogTags.logtags b/services/surfaceflinger/EventLog/EventLogTags.logtags
new file mode 100644
index 0000000..c83692f
--- /dev/null
+++ b/services/surfaceflinger/EventLog/EventLogTags.logtags
@@ -0,0 +1,38 @@
+# The entries in this file map a sparse set of log tag numbers to tag names.
+# This is installed on the device, in /system/etc, and parsed by logcat.
+#
+# Tag numbers are decimal integers, from 0 to 2^31.  (Let's leave the
+# negative values alone for now.)
+#
+# Tag names are one or more ASCII letters and numbers or underscores, i.e.
+# "[A-Z][a-z][0-9]_".  Do not include spaces or punctuation (the former
+# impacts log readability, the latter makes regex searches more annoying).
+#
+# Tag numbers and names are separated by whitespace.  Blank lines and lines
+# starting with '#' are ignored.
+#
+# Optionally, after the tag names can be put a description for the value(s)
+# of the tag. Description are in the format
+#    (<name>|data type[|data unit])
+# Multiple values are separated by commas.
+#
+# The data type is a number from the following values:
+# 1: int
+# 2: long
+# 3: string
+# 4: list
+#
+# The data unit is a number taken from the following list:
+# 1: Number of objects
+# 2: Number of bytes
+# 3: Number of milliseconds
+# 4: Number of allocations
+# 5: Id
+# 6: Percent
+# Default value for data of type int/long is 2 (bytes).
+
+# surfaceflinger
+60100 sf_jank (window|3),(value|1)
+
+# NOTE - the range 1000000-2000000 is reserved for partners and others who
+# want to define their own log tags without conflicting with the core platform.
diff --git a/services/surfaceflinger/EventThread.cpp b/services/surfaceflinger/EventThread.cpp
index 4d0fc79..4126c8a 100644
--- a/services/surfaceflinger/EventThread.cpp
+++ b/services/surfaceflinger/EventThread.cpp
@@ -320,7 +320,7 @@
     mDebugVsyncEnabled = false;
 }
 
-void EventThread::dump(String8& result, char* buffer, size_t SIZE) const {
+void EventThread::dump(String8& result) const {
     Mutex::Autolock _l(mLock);
     result.appendFormat("VSYNC state: %s\n",
             mDebugVsyncEnabled?"enabled":"disabled");
diff --git a/services/surfaceflinger/EventThread.h b/services/surfaceflinger/EventThread.h
index 1934f98..35ac0c8 100644
--- a/services/surfaceflinger/EventThread.h
+++ b/services/surfaceflinger/EventThread.h
@@ -84,7 +84,7 @@
     Vector< sp<EventThread::Connection> > waitForEvent(
             DisplayEventReceiver::Event* event);
 
-    void dump(String8& result, char* buffer, size_t SIZE) const;
+    void dump(String8& result) const;
 
 private:
     virtual bool        threadLoop();
@@ -104,7 +104,7 @@
     // protected by mLock
     SortedVector< wp<Connection> > mDisplayEventConnections;
     Vector< DisplayEventReceiver::Event > mPendingEvents;
-    DisplayEventReceiver::Event mVSyncEvent[HWC_DISPLAY_TYPES_SUPPORTED];
+    DisplayEventReceiver::Event mVSyncEvent[HWC_NUM_DISPLAY_TYPES];
     bool mUseSoftwareVSync;
 
     // for debugging
diff --git a/services/surfaceflinger/GLExtensions.cpp b/services/surfaceflinger/GLExtensions.cpp
deleted file mode 100644
index e5fb083..0000000
--- a/services/surfaceflinger/GLExtensions.cpp
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-
-#include "GLExtensions.h"
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-ANDROID_SINGLETON_STATIC_INSTANCE( GLExtensions )
-
-GLExtensions::GLExtensions()
-    : mHaveTextureExternal(false),
-      mHaveNpot(false),
-      mHaveDirectTexture(false),
-      mHaveFramebufferObject(false)
-{
-}
-
-void GLExtensions::initWithGLStrings(
-        GLubyte const* vendor,
-        GLubyte const* renderer,
-        GLubyte const* version,
-        GLubyte const* extensions,
-        char const* egl_vendor,
-        char const* egl_version,
-        char const* egl_extensions)
-{
-    mVendor     = (char const*)vendor;
-    mRenderer   = (char const*)renderer;
-    mVersion    = (char const*)version;
-    mExtensions = (char const*)extensions;
-    mEglVendor     = egl_vendor;
-    mEglVersion    = egl_version;
-    mEglExtensions = egl_extensions;
-
-    char const* curr = (char const*)extensions;
-    char const* head = curr;
-    do {
-        head = strchr(curr, ' ');
-        String8 s(curr, head ? head-curr : strlen(curr));
-        if (s.length()) {
-            mExtensionList.add(s);
-        }
-        curr = head+1;
-    } while (head);
-
-    curr = egl_extensions;
-    head = curr;
-    do {
-        head = strchr(curr, ' ');
-        String8 s(curr, head ? head-curr : strlen(curr));
-        if (s.length()) {
-            mExtensionList.add(s);
-        }
-        curr = head+1;
-    } while (head);
-
-#ifdef EGL_ANDROID_image_native_buffer
-    if (hasExtension("GL_OES_EGL_image") &&
-        (hasExtension("EGL_KHR_image_base") || hasExtension("EGL_KHR_image")) &&
-        hasExtension("EGL_ANDROID_image_native_buffer"))
-    {
-        mHaveDirectTexture = true;
-    }
-#else
-#error "EGL_ANDROID_image_native_buffer not supported"
-#endif
-
-    if (hasExtension("GL_ARB_texture_non_power_of_two")) {
-        mHaveNpot = true;
-    }
-
-    if (hasExtension("GL_OES_EGL_image_external")) {
-        mHaveTextureExternal = true;
-    } else if (strstr(mRenderer.string(), "Adreno")) {
-        // hack for Adreno 200
-        mHaveTextureExternal = true;
-    }
-
-    if (hasExtension("GL_OES_framebuffer_object")) {
-        mHaveFramebufferObject = true;
-    }
-}
-
-bool GLExtensions::hasExtension(char const* extension) const
-{
-    const String8 s(extension);
-    return mExtensionList.indexOf(s) >= 0;
-}
-
-char const* GLExtensions::getVendor() const {
-    return mVendor.string();
-}
-
-char const* GLExtensions::getRenderer() const {
-    return mRenderer.string();
-}
-
-char const* GLExtensions::getVersion() const {
-    return mVersion.string();
-}
-
-char const* GLExtensions::getExtension() const {
-    return mExtensions.string();
-}
-
-char const* GLExtensions::getEglVendor() const {
-    return mEglVendor.string();
-}
-
-char const* GLExtensions::getEglVersion() const {
-    return mEglVersion.string();
-}
-
-char const* GLExtensions::getEglExtension() const {
-    return mEglExtensions.string();
-}
-
-
-// ---------------------------------------------------------------------------
-}; // namespace android
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 4779804..2962115 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -36,14 +36,16 @@
 #include <gui/Surface.h>
 
 #include "clz.h"
+#include "Colorizer.h"
 #include "DisplayDevice.h"
-#include "GLExtensions.h"
 #include "Layer.h"
 #include "SurfaceFlinger.h"
 #include "SurfaceTextureLayer.h"
 
 #include "DisplayHardware/HWComposer.h"
 
+#include "RenderEngine/RenderEngine.h"
+
 #define DEBUG_RESIZE    0
 
 namespace android {
@@ -62,7 +64,6 @@
         mName("unnamed"),
         mDebug(false),
         mFormat(PIXEL_FORMAT_NONE),
-        mGLExtensions(GLExtensions::getInstance()),
         mOpaqueLayer(true),
         mTransactionFlags(0),
         mQueuedFrames(0),
@@ -109,8 +110,8 @@
 {
     // Creates a custom BufferQueue for SurfaceFlingerConsumer to use
     sp<BufferQueue> bq = new SurfaceTextureLayer(mFlinger);
-    mSurfaceFlingerConsumer = new SurfaceFlingerConsumer(mTextureName, true,
-            GL_TEXTURE_EXTERNAL_OES, false, bq);
+    mSurfaceFlingerConsumer = new SurfaceFlingerConsumer(bq, mTextureName,
+            GL_TEXTURE_EXTERNAL_OES, false);
 
     mSurfaceFlingerConsumer->setConsumerUsageBits(getEffectiveUsage(0));
     mSurfaceFlingerConsumer->setFrameAvailableListener(this);
@@ -164,7 +165,7 @@
 // set-up
 // ---------------------------------------------------------------------------
 
-String8 Layer::getName() const {
+const String8& Layer::getName() const {
     return mName;
 }
 
@@ -235,15 +236,6 @@
     return mSurfaceFlingerConsumer->getBufferQueue();
 }
 
-//virtual sp<IGraphicBufferProducer> getSurfaceTexture() const {
-//    sp<IGraphicBufferProducer> res;
-//    sp<const Layer> that( mOwner.promote() );
-//    if (that != NULL) {
-//        res = that->mSurfaceFlingerConsumer->getBufferQueue();
-//    }
-//    return res;
-//}
-
 // ---------------------------------------------------------------------------
 // h/w composer set-up
 // ---------------------------------------------------------------------------
@@ -265,42 +257,41 @@
     return crop;
 }
 
-uint32_t Layer::getContentTransform() const {
-    return mCurrentTransform;
+static Rect reduce(const Rect& win, const Region& exclude) {
+    if (CC_LIKELY(exclude.isEmpty())) {
+        return win;
+    }
+    if (exclude.isRect()) {
+        return win.reduce(exclude.getBounds());
+    }
+    return Region(win).subtract(exclude).getBounds();
 }
 
 Rect Layer::computeBounds() const {
-    const Layer::State& s(drawingState());
+    const Layer::State& s(getDrawingState());
     Rect win(s.active.w, s.active.h);
     if (!s.active.crop.isEmpty()) {
         win.intersect(s.active.crop, &win);
     }
-    return win;
+    // subtract the transparent region and snap to the bounds
+    return reduce(win, s.activeTransparentRegion);
 }
 
-Rect Layer::computeCrop(const sp<const DisplayDevice>& hw) const {
-    /*
-     * The way we compute the crop (aka. texture coordinates when we have a
-     * Layer) produces a different output from the GL code in
-     * drawWithOpenGL() due to HWC being limited to integers. The difference
-     * can be large if getContentTransform() contains a large scale factor.
-     * See comments in drawWithOpenGL() for more details.
-     */
-
+FloatRect Layer::computeCrop(const sp<const DisplayDevice>& hw) const {
     // the content crop is the area of the content that gets scaled to the
     // layer's size.
-    Rect crop(getContentCrop());
+    FloatRect crop(getContentCrop());
 
     // the active.crop is the area of the window that gets cropped, but not
     // scaled in any ways.
-    const State& s(drawingState());
+    const State& s(getDrawingState());
 
     // apply the projection's clipping to the window crop in
     // layerstack space, and convert-back to layer space.
-    // if there are no window scaling (or content scaling) involved,
-    // this operation will map to full pixels in the buffer.
-    // NOTE: should we revert to GL composition if a scaling is involved
-    // since it cannot be represented in the HWC API?
+    // if there are no window scaling involved, this operation will map to full
+    // pixels in the buffer.
+    // FIXME: the 3 lines below can produce slightly incorrect clipping when we have
+    // a viewport clipping and a window transform. we should use floating point to fix this.
     Rect activeCrop(s.transform.transform(s.active.crop));
     activeCrop.intersect(hw->getViewport(), &activeCrop);
     activeCrop = s.transform.inverse().transform(activeCrop);
@@ -309,11 +300,14 @@
     // window's bounds
     activeCrop.intersect(Rect(s.active.w, s.active.h), &activeCrop);
 
+    // subtract the transparent region and snap to the bounds
+    activeCrop = reduce(activeCrop, s.activeTransparentRegion);
+
     if (!activeCrop.isEmpty()) {
         // Transform the window crop to match the buffer coordinate system,
         // which means using the inverse of the current transform set on the
         // SurfaceFlingerConsumer.
-        uint32_t invTransform = getContentTransform();
+        uint32_t invTransform = mCurrentTransform;
         int winWidth = s.active.w;
         int winHeight = s.active.h;
         if (invTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) {
@@ -325,15 +319,14 @@
         const Rect winCrop = activeCrop.transform(
                 invTransform, s.active.w, s.active.h);
 
-        // the code below essentially performs a scaled intersection
-        // of crop and winCrop
-        float xScale = float(crop.width()) / float(winWidth);
-        float yScale = float(crop.height()) / float(winHeight);
+        // below, crop is intersected with winCrop expressed in crop's coordinate space
+        float xScale = crop.getWidth()  / float(winWidth);
+        float yScale = crop.getHeight() / float(winHeight);
 
-        int insetL = int(ceilf( winCrop.left                * xScale));
-        int insetT = int(ceilf( winCrop.top                 * yScale));
-        int insetR = int(ceilf((winWidth  - winCrop.right ) * xScale));
-        int insetB = int(ceilf((winHeight - winCrop.bottom) * yScale));
+        float insetL = winCrop.left                 * xScale;
+        float insetT = winCrop.top                  * yScale;
+        float insetR = (winWidth  - winCrop.right ) * xScale;
+        float insetB = (winHeight - winCrop.bottom) * yScale;
 
         crop.left   += insetL;
         crop.top    += insetT;
@@ -357,7 +350,7 @@
     }
 
     // this gives us only the "orientation" component of the transform
-    const State& s(drawingState());
+    const State& s(getDrawingState());
     if (!isOpaque() || s.alpha != 0xFF) {
         layer.setBlending(mPremultipliedAlpha ?
                 HWC_BLENDING_PREMULT :
@@ -484,6 +477,8 @@
 
     bool blackOutLayer = isProtected() || (isSecure() && !hw->isSecure());
 
+    RenderEngine& engine(mFlinger->getRenderEngine());
+
     if (!blackOutLayer) {
         // TODO: we could be more subtle with isFixedSize()
         const bool useFiltering = getFiltering() || needsFiltering(hw) || isFixedSize();
@@ -494,49 +489,24 @@
         mSurfaceFlingerConsumer->getTransformMatrix(textureMatrix);
 
         // Set things up for texturing.
-        glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureName);
-        GLenum filter = GL_NEAREST;
-        if (useFiltering) {
-            filter = GL_LINEAR;
-        }
-        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, filter);
-        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, filter);
-        glMatrixMode(GL_TEXTURE);
-        glLoadMatrixf(textureMatrix);
-        glMatrixMode(GL_MODELVIEW);
-        glDisable(GL_TEXTURE_2D);
-        glEnable(GL_TEXTURE_EXTERNAL_OES);
+        engine.setupLayerTexturing(mTextureName, useFiltering, textureMatrix);
     } else {
-        glBindTexture(GL_TEXTURE_2D, mFlinger->getProtectedTexName());
-        glMatrixMode(GL_TEXTURE);
-        glLoadIdentity();
-        glMatrixMode(GL_MODELVIEW);
-        glDisable(GL_TEXTURE_EXTERNAL_OES);
-        glEnable(GL_TEXTURE_2D);
+        engine.setupLayerBlackedOut();
     }
-
     drawWithOpenGL(hw, clip);
-
-    glDisable(GL_TEXTURE_EXTERNAL_OES);
-    glDisable(GL_TEXTURE_2D);
+    engine.disableTexturing();
 }
 
 
 void Layer::clearWithOpenGL(const sp<const DisplayDevice>& hw, const Region& clip,
         GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) const
 {
-    const uint32_t fbHeight = hw->getHeight();
-    glColor4f(red,green,blue,alpha);
-
-    glDisable(GL_TEXTURE_EXTERNAL_OES);
-    glDisable(GL_TEXTURE_2D);
-    glDisable(GL_BLEND);
-
     LayerMesh mesh;
     computeGeometry(hw, &mesh);
 
-    glVertexPointer(2, GL_FLOAT, 0, mesh.getVertices());
-    glDrawArrays(GL_TRIANGLE_FAN, 0, mesh.getVertexCount());
+    mFlinger->getRenderEngine().clearWithColor(
+        mesh.getVertices(), mesh.getVertexCount(),
+        red, green, blue, alpha);
 }
 
 void Layer::clearWithOpenGL(
@@ -547,42 +517,11 @@
 void Layer::drawWithOpenGL(
         const sp<const DisplayDevice>& hw, const Region& clip) const {
     const uint32_t fbHeight = hw->getHeight();
-    const State& s(drawingState());
-
-    GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
-    if (CC_UNLIKELY(s.alpha < 0xFF)) {
-        const GLfloat alpha = s.alpha * (1.0f/255.0f);
-        if (mPremultipliedAlpha) {
-            glColor4f(alpha, alpha, alpha, alpha);
-        } else {
-            glColor4f(1, 1, 1, alpha);
-        }
-        glEnable(GL_BLEND);
-        glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
-        glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-    } else {
-        glColor4f(1, 1, 1, 1);
-        glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-        if (!isOpaque()) {
-            glEnable(GL_BLEND);
-            glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
-        } else {
-            glDisable(GL_BLEND);
-        }
-    }
+    const State& s(getDrawingState());
 
     LayerMesh mesh;
     computeGeometry(hw, &mesh);
 
-    // TODO: we probably want to generate the texture coords with the mesh
-    // here we assume that we only have 4 vertices
-
-    struct TexCoords {
-        GLfloat u;
-        GLfloat v;
-    };
-
-
     /*
      * NOTE: the way we compute the texture coordinates here produces
      * different results than when we take the HWC path -- in the later case
@@ -604,26 +543,25 @@
     GLfloat right  = GLfloat(win.right)  / GLfloat(s.active.w);
     GLfloat bottom = GLfloat(win.bottom) / GLfloat(s.active.h);
 
-    TexCoords texCoords[4];
-    texCoords[0].u = left;
-    texCoords[0].v = top;
-    texCoords[1].u = left;
-    texCoords[1].v = bottom;
-    texCoords[2].u = right;
-    texCoords[2].v = bottom;
-    texCoords[3].u = right;
-    texCoords[3].v = top;
+    // TODO: we probably want to generate the texture coords with the mesh
+    // here we assume that we only have 4 vertices
+    float texCoords[4][2];
+    texCoords[0][0] = left;
+    texCoords[0][1] = top;
+    texCoords[1][0] = left;
+    texCoords[1][1] = bottom;
+    texCoords[2][0] = right;
+    texCoords[2][1] = bottom;
+    texCoords[3][0] = right;
+    texCoords[3][1] = top;
     for (int i = 0; i < 4; i++) {
-        texCoords[i].v = 1.0f - texCoords[i].v;
+        texCoords[i][1] = 1.0f - texCoords[i][1];
     }
 
-    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-    glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
-    glVertexPointer(2, GL_FLOAT, 0, mesh.getVertices());
-    glDrawArrays(GL_TRIANGLE_FAN, 0, mesh.getVertexCount());
-
-    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-    glDisable(GL_BLEND);
+    RenderEngine& engine(mFlinger->getRenderEngine());
+    engine.setupLayerBlending(mPremultipliedAlpha, isOpaque(), s.alpha);
+    engine.drawMesh2D(mesh.getVertices(), texCoords, mesh.getVertexCount());
+    engine.disableBlending();
 }
 
 void Layer::setFiltering(bool filtering) {
@@ -658,13 +596,15 @@
 
 void Layer::computeGeometry(const sp<const DisplayDevice>& hw, LayerMesh* mesh) const
 {
-    const Layer::State& s(drawingState());
+    const Layer::State& s(getDrawingState());
     const Transform tr(hw->getTransform() * s.transform);
     const uint32_t hw_h = hw->getHeight();
     Rect win(s.active.w, s.active.h);
     if (!s.active.crop.isEmpty()) {
         win.intersect(s.active.crop, &win);
     }
+    // subtract the transparent region and snap to the bounds
+    win = reduce(win, s.activeTransparentRegion);
     if (mesh) {
         tr.transform(mesh->mVertices[0], win.left,  win.top);
         tr.transform(mesh->mVertices[1], win.left,  win.bottom);
@@ -731,11 +671,11 @@
 uint32_t Layer::doTransaction(uint32_t flags) {
     ATRACE_CALL();
 
-    const Layer::State& front(drawingState());
-    const Layer::State& temp(currentState());
+    const Layer::State& s(getDrawingState());
+    const Layer::State& c(getCurrentState());
 
-    const bool sizeChanged = (temp.requested.w != front.requested.w) ||
-                             (temp.requested.h != front.requested.h);
+    const bool sizeChanged = (c.requested.w != s.requested.w) ||
+                             (c.requested.h != s.requested.h);
 
     if (sizeChanged) {
         // the size changed, we need to ask our client to request a new buffer
@@ -745,46 +685,46 @@
                 "            requested={ wh={%4u,%4u} crop={%4d,%4d,%4d,%4d} (%4d,%4d) }}\n"
                 "  drawing={ active   ={ wh={%4u,%4u} crop={%4d,%4d,%4d,%4d} (%4d,%4d) }\n"
                 "            requested={ wh={%4u,%4u} crop={%4d,%4d,%4d,%4d} (%4d,%4d) }}\n",
-                this, (const char*) getName(), mCurrentTransform, mCurrentScalingMode,
-                temp.active.w, temp.active.h,
-                temp.active.crop.left,
-                temp.active.crop.top,
-                temp.active.crop.right,
-                temp.active.crop.bottom,
-                temp.active.crop.getWidth(),
-                temp.active.crop.getHeight(),
-                temp.requested.w, temp.requested.h,
-                temp.requested.crop.left,
-                temp.requested.crop.top,
-                temp.requested.crop.right,
-                temp.requested.crop.bottom,
-                temp.requested.crop.getWidth(),
-                temp.requested.crop.getHeight(),
-                front.active.w, front.active.h,
-                front.active.crop.left,
-                front.active.crop.top,
-                front.active.crop.right,
-                front.active.crop.bottom,
-                front.active.crop.getWidth(),
-                front.active.crop.getHeight(),
-                front.requested.w, front.requested.h,
-                front.requested.crop.left,
-                front.requested.crop.top,
-                front.requested.crop.right,
-                front.requested.crop.bottom,
-                front.requested.crop.getWidth(),
-                front.requested.crop.getHeight());
+                this, getName().string(), mCurrentTransform, mCurrentScalingMode,
+                c.active.w, c.active.h,
+                c.active.crop.left,
+                c.active.crop.top,
+                c.active.crop.right,
+                c.active.crop.bottom,
+                c.active.crop.getWidth(),
+                c.active.crop.getHeight(),
+                c.requested.w, c.requested.h,
+                c.requested.crop.left,
+                c.requested.crop.top,
+                c.requested.crop.right,
+                c.requested.crop.bottom,
+                c.requested.crop.getWidth(),
+                c.requested.crop.getHeight(),
+                s.active.w, s.active.h,
+                s.active.crop.left,
+                s.active.crop.top,
+                s.active.crop.right,
+                s.active.crop.bottom,
+                s.active.crop.getWidth(),
+                s.active.crop.getHeight(),
+                s.requested.w, s.requested.h,
+                s.requested.crop.left,
+                s.requested.crop.top,
+                s.requested.crop.right,
+                s.requested.crop.bottom,
+                s.requested.crop.getWidth(),
+                s.requested.crop.getHeight());
 
         // record the new size, form this point on, when the client request
         // a buffer, it'll get the new size.
         mSurfaceFlingerConsumer->setDefaultBufferSize(
-                temp.requested.w, temp.requested.h);
+                c.requested.w, c.requested.h);
     }
 
     if (!isFixedSize()) {
 
-        const bool resizePending = (temp.requested.w != temp.active.w) ||
-                                   (temp.requested.h != temp.active.h);
+        const bool resizePending = (c.requested.w != c.active.w) ||
+                                   (c.requested.h != c.active.h);
 
         if (resizePending) {
             // don't let Layer::doTransaction update the drawing state
@@ -804,23 +744,23 @@
     // this is used by Layer, which special cases resizes.
     if (flags & eDontUpdateGeometryState)  {
     } else {
-        Layer::State& editTemp(currentState());
-        editTemp.active = temp.requested;
+        Layer::State& editCurrentState(getCurrentState());
+        editCurrentState.active = c.requested;
     }
 
-    if (front.active != temp.active) {
+    if (s.active != c.active) {
         // invalidate and recompute the visible regions if needed
         flags |= Layer::eVisibleRegion;
     }
 
-    if (temp.sequence != front.sequence) {
+    if (c.sequence != s.sequence) {
         // invalidate and recompute the visible regions if needed
         flags |= eVisibleRegion;
         this->contentDirty = true;
 
         // we may use linear filtering, if the matrix scales us
-        const uint8_t type = temp.transform.getType();
-        mNeedsFiltering = (!temp.transform.preserveRects() ||
+        const uint8_t type = c.transform.getType();
+        mNeedsFiltering = (!c.transform.preserveRects() ||
                 (type >= Transform::SCALE));
     }
 
@@ -977,11 +917,6 @@
         const bool oldOpacity = isOpaque();
         sp<GraphicBuffer> oldActiveBuffer = mActiveBuffer;
 
-        // signal another event if we have more frames pending
-        if (android_atomic_dec(&mQueuedFrames) > 1) {
-            mFlinger->signalLayerUpdate();
-        }
-
         struct Reject : public SurfaceFlingerConsumer::BufferRejecter {
             Layer::State& front;
             Layer::State& current;
@@ -1085,9 +1020,23 @@
         };
 
 
-        Reject r(mDrawingState, currentState(), recomputeVisibleRegions);
+        Reject r(mDrawingState, getCurrentState(), recomputeVisibleRegions);
 
-        if (mSurfaceFlingerConsumer->updateTexImage(&r) != NO_ERROR) {
+        status_t updateResult = mSurfaceFlingerConsumer->updateTexImage(&r);
+        if (updateResult == BufferQueue::PRESENT_LATER) {
+            // Producer doesn't want buffer to be displayed yet.  Signal a
+            // layer update so we check again at the next opportunity.
+            mFlinger->signalLayerUpdate();
+            return outDirtyRegion;
+        }
+
+        // Decrement the queued-frames count.  Signal another event if we
+        // have more frames pending.
+        if (android_atomic_dec(&mQueuedFrames) > 1) {
+            mFlinger->signalLayerUpdate();
+        }
+
+        if (updateResult != NO_ERROR) {
             // something happened!
             recomputeVisibleRegions = true;
             return outDirtyRegion;
@@ -1135,15 +1084,12 @@
             recomputeVisibleRegions = true;
         }
 
-        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-        glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-
         // FIXME: postedRegion should be dirty & bounds
-        const Layer::State& front(drawingState());
-        Region dirtyRegion(Rect(front.active.w, front.active.h));
+        const Layer::State& s(getDrawingState());
+        Region dirtyRegion(Rect(s.active.w, s.active.h));
 
         // transform the dirty region to window-manager space
-        outDirtyRegion = (front.transform.transform(dirtyRegion));
+        outDirtyRegion = (s.transform.transform(dirtyRegion));
     }
     return outDirtyRegion;
 }
@@ -1178,21 +1124,21 @@
 // debugging
 // ----------------------------------------------------------------------------
 
-void Layer::dump(String8& result, char* buffer, size_t SIZE) const
+void Layer::dump(String8& result, Colorizer& colorizer) const
 {
-    const Layer::State& s(drawingState());
+    const Layer::State& s(getDrawingState());
 
-    snprintf(buffer, SIZE,
+    colorizer.colorize(result, Colorizer::GREEN);
+    result.appendFormat(
             "+ %s %p (%s)\n",
             getTypeId(), this, getName().string());
-    result.append(buffer);
+    colorizer.reset(result);
 
     s.activeTransparentRegion.dump(result, "transparentRegion");
     visibleRegion.dump(result, "visibleRegion");
     sp<Client> client(mClientRef.promote());
 
-    snprintf(buffer, SIZE,
-            "      "
+    result.appendFormat(            "      "
             "layerStack=%4d, z=%9d, pos=(%g,%g), size=(%4d,%4d), crop=(%4d,%4d,%4d,%4d), "
             "isOpaque=%1d, invalidate=%1d, "
             "alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n"
@@ -1205,7 +1151,6 @@
             s.transform[0][0], s.transform[0][1],
             s.transform[1][0], s.transform[1][1],
             client.get());
-    result.append(buffer);
 
     sp<const GraphicBuffer> buf0(mActiveBuffer);
     uint32_t w0=0, h0=0, s0=0, f0=0;
@@ -1215,26 +1160,19 @@
         s0 = buf0->getStride();
         f0 = buf0->format;
     }
-    snprintf(buffer, SIZE,
+    result.appendFormat(
             "      "
             "format=%2d, activeBuffer=[%4ux%4u:%4u,%3X],"
             " queued-frames=%d, mRefreshPending=%d\n",
             mFormat, w0, h0, s0,f0,
             mQueuedFrames, mRefreshPending);
 
-    result.append(buffer);
-
     if (mSurfaceFlingerConsumer != 0) {
-        mSurfaceFlingerConsumer->dump(result, "            ", buffer, SIZE);
+        mSurfaceFlingerConsumer->dump(result, "            ");
     }
 }
 
-
-void Layer::shortDump(String8& result, char* scratch, size_t size) const {
-    Layer::dump(result, scratch, size);
-}
-
-void Layer::dumpStats(String8& result, char* buffer, size_t SIZE) const {
+void Layer::dumpStats(String8& result) const {
     mFrameTracker.dump(result);
 }
 
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 2765db1..0ceb15e 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -22,8 +22,6 @@
 
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
 
 #include <utils/RefBase.h>
 #include <utils/String8.h>
@@ -45,16 +43,17 @@
 #include "Transform.h"
 
 #include "DisplayHardware/HWComposer.h"
+#include "DisplayHardware/FloatRect.h"
 
 namespace android {
 
 // ---------------------------------------------------------------------------
 
 class Client;
+class Colorizer;
 class DisplayDevice;
 class GraphicBuffer;
 class SurfaceFlinger;
-class GLExtensions;
 
 // ---------------------------------------------------------------------------
 
@@ -112,14 +111,15 @@
 
     class LayerMesh {
         friend class Layer;
-        GLfloat mVertices[4][2];
+        typedef GLfloat float2[2];
+        float2 mVertices[4];
         size_t mNumVertices;
     public:
         LayerMesh() :
                 mNumVertices(4) {
         }
-        GLfloat const* getVertices() const {
-            return &mVertices[0][0];
+        float2 const* getVertices() const {
+            return mVertices;
         }
         size_t getVertexCount() const {
             return mNumVertices;
@@ -130,6 +130,7 @@
 
     Layer(SurfaceFlinger* flinger, const sp<Client>& client,
             const String8& name, uint32_t w, uint32_t h, uint32_t flags);
+
     virtual ~Layer();
 
     // the this layer's size and format
@@ -146,8 +147,6 @@
     bool setCrop(const Rect& crop);
     bool setLayerStack(uint32_t layerStack);
 
-    void commitTransaction();
-
     uint32_t getTransactionFlags(uint32_t flags);
     uint32_t setTransactionFlags(uint32_t flags);
 
@@ -156,89 +155,13 @@
 
     sp<IBinder> getHandle();
     sp<BufferQueue> getBufferQueue() const;
-    String8 getName() const;
+    const String8& getName() const;
 
     // -----------------------------------------------------------------------
+    // Virtuals
 
     virtual const char* getTypeId() const { return "Layer"; }
 
-    virtual void setGeometry(const sp<const DisplayDevice>& hw,
-            HWComposer::HWCLayerInterface& layer);
-    virtual void setPerFrameData(const sp<const DisplayDevice>& hw,
-            HWComposer::HWCLayerInterface& layer);
-    virtual void setAcquireFence(const sp<const DisplayDevice>& hw,
-            HWComposer::HWCLayerInterface& layer);
-
-    /*
-     * called after page-flip
-     */
-    virtual void onLayerDisplayed(const sp<const DisplayDevice>& hw,
-            HWComposer::HWCLayerInterface* layer);
-
-    /*
-     * called before composition.
-     * returns true if the layer has pending updates.
-     */
-    virtual bool onPreComposition();
-
-    /*
-     *  called after composition.
-     */
-    virtual void onPostComposition();
-
-    /*
-     * draw - performs some global clipping optimizations
-     * and calls onDraw().
-     * Typically this method is not overridden, instead implement onDraw()
-     * to perform the actual drawing.
-     */
-    virtual void draw(const sp<const DisplayDevice>& hw, const Region& clip) const;
-    virtual void draw(const sp<const DisplayDevice>& hw);
-
-    /*
-     * onDraw - draws the surface.
-     */
-    virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const;
-
-    /*
-     * needsLinearFiltering - true if this surface's state requires filtering
-     */
-    virtual bool needsFiltering(const sp<const DisplayDevice>& hw) const;
-
-    /*
-     * doTransaction - process the transaction. This is a good place to figure
-     * out which attributes of the surface have changed.
-     */
-    virtual uint32_t doTransaction(uint32_t transactionFlags);
-
-    /*
-     * setVisibleRegion - called to set the new visible region. This gives
-     * a chance to update the new visible region or record the fact it changed.
-     */
-    virtual void setVisibleRegion(const Region& visibleRegion);
-
-    /*
-     * setCoveredRegion - called when the covered region changes. The covered
-     * region corresponds to any area of the surface that is covered
-     * (transparently or not) by another surface.
-     */
-    virtual void setCoveredRegion(const Region& coveredRegion);
-
-    /*
-     * setVisibleNonTransparentRegion - called when the visible and
-     * non-transparent region changes.
-     */
-    virtual void setVisibleNonTransparentRegion(const Region&
-            visibleNonTransparentRegion);
-
-    /*
-     * latchBuffer - called each time the screen is redrawn and returns whether
-     * the visible regions need to be recomputed (this is a fairly heavy
-     * operation, so this should be set only if needed). Typically this is used
-     * to figure out if the content or size of a surface has changed.
-     */
-    virtual Region latchBuffer(bool& recomputeVisibleRegions);
-
     /*
      * isOpaque - true if this surface is opaque
      */
@@ -266,28 +189,96 @@
      */
     virtual bool isFixedSize() const;
 
+protected:
+    /*
+     * onDraw - draws the surface.
+     */
+    virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const;
+
+public:
+    // -----------------------------------------------------------------------
+
+    void setGeometry(const sp<const DisplayDevice>& hw,
+            HWComposer::HWCLayerInterface& layer);
+    void setPerFrameData(const sp<const DisplayDevice>& hw,
+            HWComposer::HWCLayerInterface& layer);
+    void setAcquireFence(const sp<const DisplayDevice>& hw,
+            HWComposer::HWCLayerInterface& layer);
+
+    /*
+     * called after page-flip
+     */
+    void onLayerDisplayed(const sp<const DisplayDevice>& hw,
+            HWComposer::HWCLayerInterface* layer);
+
+    /*
+     * called before composition.
+     * returns true if the layer has pending updates.
+     */
+    bool onPreComposition();
+
+    /*
+     *  called after composition.
+     */
+    void onPostComposition();
+
+    /*
+     * draw - performs some global clipping optimizations
+     * and calls onDraw().
+     */
+    void draw(const sp<const DisplayDevice>& hw, const Region& clip) const;
+    void draw(const sp<const DisplayDevice>& hw);
+
+    /*
+     * doTransaction - process the transaction. This is a good place to figure
+     * out which attributes of the surface have changed.
+     */
+    uint32_t doTransaction(uint32_t transactionFlags);
+
+    /*
+     * setVisibleRegion - called to set the new visible region. This gives
+     * a chance to update the new visible region or record the fact it changed.
+     */
+    void setVisibleRegion(const Region& visibleRegion);
+
+    /*
+     * setCoveredRegion - called when the covered region changes. The covered
+     * region corresponds to any area of the surface that is covered
+     * (transparently or not) by another surface.
+     */
+    void setCoveredRegion(const Region& coveredRegion);
+
+    /*
+     * setVisibleNonTransparentRegion - called when the visible and
+     * non-transparent region changes.
+     */
+    void setVisibleNonTransparentRegion(const Region&
+            visibleNonTransparentRegion);
+
+    /*
+     * latchBuffer - called each time the screen is redrawn and returns whether
+     * the visible regions need to be recomputed (this is a fairly heavy
+     * operation, so this should be set only if needed). Typically this is used
+     * to figure out if the content or size of a surface has changed.
+     */
+    Region latchBuffer(bool& recomputeVisibleRegions);
+
     /*
      * called with the state lock when the surface is removed from the
      * current list
      */
-    virtual void onRemoved();
+    void onRemoved();
 
 
     // Updates the transform hint in our SurfaceFlingerConsumer to match
     // the current orientation of the display device.
-    virtual void updateTransformHint(const sp<const DisplayDevice>& hw) const;
+    void updateTransformHint(const sp<const DisplayDevice>& hw) const;
 
     /*
      * returns the rectangle that crops the content of the layer and scales it
      * to the layer's size.
      */
-    virtual Rect getContentCrop() const;
-
-    /*
-     * returns the transform bits (90 rotation / h-flip / v-flip) of the
-     * layer's content
-     */
-    virtual uint32_t getContentTransform() const;
+    Rect getContentCrop() const;
 
     // -----------------------------------------------------------------------
 
@@ -298,16 +289,15 @@
     // only for debugging
     inline const sp<GraphicBuffer>& getActiveBuffer() const { return mActiveBuffer; }
 
-    inline  const State&    drawingState() const    { return mDrawingState; }
-    inline  const State&    currentState() const    { return mCurrentState; }
-    inline  State&          currentState()          { return mCurrentState; }
+    inline  const State&    getDrawingState() const { return mDrawingState; }
+    inline  const State&    getCurrentState() const { return mCurrentState; }
+    inline  State&          getCurrentState()       { return mCurrentState; }
 
 
     /* always call base class first */
-    virtual void dump(String8& result, char* scratch, size_t size) const;
-    virtual void shortDump(String8& result, char* scratch, size_t size) const;
-    virtual void dumpStats(String8& result, char* buffer, size_t SIZE) const;
-    virtual void clearStats();
+    void dump(String8& result, Colorizer& colorizer) const;
+    void dumpStats(String8& result) const;
+    void clearStats();
 
 protected:
     // constant
@@ -333,9 +323,13 @@
     // Interface implementation for SurfaceFlingerConsumer::FrameAvailableListener
     virtual void onFrameAvailable();
 
+    void commitTransaction();
+
+    // needsLinearFiltering - true if this surface's state requires filtering
+    bool needsFiltering(const sp<const DisplayDevice>& hw) const;
 
     uint32_t getEffectiveUsage(uint32_t usage) const;
-    Rect computeCrop(const sp<const DisplayDevice>& hw) const;
+    FloatRect computeCrop(const sp<const DisplayDevice>& hw) const;
     bool isCropped() const;
     static bool getOpacityForFormat(uint32_t format);
 
@@ -354,7 +348,6 @@
     String8 mName;
     mutable bool mDebug;
     PixelFormat mFormat;
-    const GLExtensions& mGLExtensions;
     bool mOpaqueLayer;
 
     // these are protected by an external lock
diff --git a/services/surfaceflinger/LayerDim.cpp b/services/surfaceflinger/LayerDim.cpp
index 36bafdb..062ad46 100644
--- a/services/surfaceflinger/LayerDim.cpp
+++ b/services/surfaceflinger/LayerDim.cpp
@@ -18,9 +18,6 @@
 #include <stdint.h>
 #include <sys/types.h>
 
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-
 #include <utils/Errors.h>
 #include <utils/Log.h>
 
@@ -29,6 +26,7 @@
 #include "LayerDim.h"
 #include "SurfaceFlinger.h"
 #include "DisplayDevice.h"
+#include "RenderEngine/RenderEngine.h"
 
 namespace android {
 // ---------------------------------------------------------------------------
@@ -43,35 +41,19 @@
 
 void LayerDim::onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const
 {
-    const State& s(drawingState());
+    const State& s(getDrawingState());
     if (s.alpha>0) {
-        const GLfloat alpha = s.alpha/255.0f;
-        const uint32_t fbHeight = hw->getHeight();
-        glDisable(GL_TEXTURE_EXTERNAL_OES);
-        glDisable(GL_TEXTURE_2D);
-
-        if (s.alpha == 0xFF) {
-            glDisable(GL_BLEND);
-        } else {
-            glEnable(GL_BLEND);
-            glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
-        }
-
-        glColor4f(0, 0, 0, alpha);
-
         LayerMesh mesh;
         computeGeometry(hw, &mesh);
-
-        glVertexPointer(2, GL_FLOAT, 0, mesh.getVertices());
-        glDrawArrays(GL_TRIANGLE_FAN, 0, mesh.getVertexCount());
-
-        glDisable(GL_BLEND);
-        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+        RenderEngine& engine(mFlinger->getRenderEngine());
+        engine.setupDimLayerBlending(s.alpha);
+        engine.drawMesh2D(mesh.getVertices(), NULL, mesh.getVertexCount());
+        engine.disableBlending();
     }
 }
 
 bool LayerDim::isVisible() const {
-    const Layer::State& s(drawingState());
+    const Layer::State& s(getDrawingState());
     return !(s.flags & layer_state_t::eLayerHidden) && s.alpha;
 }
 
diff --git a/services/surfaceflinger/LayerDim.h b/services/surfaceflinger/LayerDim.h
index e19bf52..6561d7f 100644
--- a/services/surfaceflinger/LayerDim.h
+++ b/services/surfaceflinger/LayerDim.h
@@ -20,9 +20,6 @@
 #include <stdint.h>
 #include <sys/types.h>
 
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-
 #include "Layer.h"
 
 // ---------------------------------------------------------------------------
@@ -36,13 +33,10 @@
                         const String8& name, uint32_t w, uint32_t h, uint32_t flags);
         virtual ~LayerDim();
 
+    virtual const char* getTypeId() const { return "LayerDim"; }
     virtual void onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const;
     virtual bool isOpaque() const         { return false; }
     virtual bool isSecure() const         { return false; }
-    virtual bool isProtectedByApp() const { return false; }
-    virtual bool isProtectedByDRM() const { return false; }
-    virtual const char* getTypeId() const { return "LayerDim"; }
-
     virtual bool isFixedSize() const      { return true; }
     virtual bool isVisible() const;
 };
diff --git a/services/surfaceflinger/RenderEngine/GLES10RenderEngine.cpp b/services/surfaceflinger/RenderEngine/GLES10RenderEngine.cpp
new file mode 100644
index 0000000..9a47568
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLES10RenderEngine.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <GLES/gl.h>
+
+#include <cutils/compiler.h>
+
+#include "GLES10RenderEngine.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+GLES10RenderEngine::~GLES10RenderEngine() {
+}
+
+void GLES10RenderEngine::setupLayerBlending(
+    bool premultipliedAlpha, bool opaque, int alpha) {
+    // OpenGL ES 1.0 doesn't support texture combiners.
+    // This path doesn't properly handle opaque layers that have non-opaque
+    // alpha values. The alpha channel will be copied into the framebuffer or
+    // screenshot, so if the framebuffer or screenshot is blended on top of
+    // something else,  whatever is below the window will incorrectly show
+    // through.
+    if (CC_UNLIKELY(alpha < 0xFF)) {
+        GLfloat floatAlpha = alpha * (1.0f / 255.0f);
+        if (premultipliedAlpha) {
+            glColor4f(floatAlpha, floatAlpha, floatAlpha, floatAlpha);
+        } else {
+            glColor4f(1.0f, 1.0f, 1.0f, floatAlpha);
+        }
+        glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+    } else {
+        glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+    }
+
+    if (alpha < 0xFF || !opaque) {
+        glEnable(GL_BLEND);
+        glBlendFunc(premultipliedAlpha ? GL_ONE : GL_SRC_ALPHA,
+                    GL_ONE_MINUS_SRC_ALPHA);
+    } else {
+        glDisable(GL_BLEND);
+    }
+}
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/RenderEngine/GLES10RenderEngine.h b/services/surfaceflinger/RenderEngine/GLES10RenderEngine.h
new file mode 100644
index 0000000..f9c7c04
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLES10RenderEngine.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef SF_GLES10RENDERENGINE_H_
+#define SF_GLES10RENDERENGINE_H_
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "GLES11RenderEngine.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class GLES10RenderEngine : public GLES11RenderEngine {
+    virtual ~GLES10RenderEngine();
+protected:
+    virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha);
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
+
+#endif /* SF_GLES10RENDERENGINE_H_ */
diff --git a/services/surfaceflinger/RenderEngine/GLES11RenderEngine.cpp b/services/surfaceflinger/RenderEngine/GLES11RenderEngine.cpp
new file mode 100644
index 0000000..19499c9
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLES11RenderEngine.cpp
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <GLES/gl.h>
+
+#include <utils/String8.h>
+#include <cutils/compiler.h>
+
+#include "GLES11RenderEngine.h"
+#include "GLExtensions.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+GLES11RenderEngine::GLES11RenderEngine() {
+
+    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
+    glGetIntegerv(GL_MAX_VIEWPORT_DIMS, mMaxViewportDims);
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+    glPixelStorei(GL_PACK_ALIGNMENT, 4);
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glShadeModel(GL_FLAT);
+    glDisable(GL_DITHER);
+    glDisable(GL_CULL_FACE);
+
+    struct pack565 {
+        inline uint16_t operator() (int r, int g, int b) const {
+            return (r<<11)|(g<<5)|b;
+        }
+    } pack565;
+
+    const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) };
+    glGenTextures(1, &mProtectedTexName);
+    glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
+    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0,
+            GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData);
+}
+
+GLES11RenderEngine::~GLES11RenderEngine() {
+}
+
+
+size_t GLES11RenderEngine::getMaxTextureSize() const {
+    return mMaxTextureSize;
+}
+
+size_t GLES11RenderEngine::getMaxViewportDims() const {
+    return
+        mMaxViewportDims[0] < mMaxViewportDims[1] ?
+            mMaxViewportDims[0] : mMaxViewportDims[1];
+}
+
+void GLES11RenderEngine::setViewportAndProjection(size_t w, size_t h) {
+    glViewport(0, 0, w, h);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    // put the origin in the left-bottom corner
+    glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h
+    glMatrixMode(GL_MODELVIEW);
+}
+
+void GLES11RenderEngine::setupLayerBlending(
+    bool premultipliedAlpha, bool opaque, int alpha) {
+    GLenum combineRGB;
+    GLenum combineAlpha;
+    GLenum src0Alpha;
+    GLfloat envColor[4];
+
+    if (CC_UNLIKELY(alpha < 0xFF)) {
+        // Cv = premultiplied ? Cs*alpha : Cs
+        // Av = !opaque       ? alpha*As : 1.0
+        combineRGB   = premultipliedAlpha ? GL_MODULATE : GL_REPLACE;
+        combineAlpha = !opaque            ? GL_MODULATE : GL_REPLACE;
+        src0Alpha    = GL_CONSTANT;
+        envColor[0]  = alpha * (1.0f / 255.0f);
+    } else {
+        // Cv = Cs
+        // Av = opaque ? 1.0 : As
+        combineRGB   = GL_REPLACE;
+        combineAlpha = GL_REPLACE;
+        src0Alpha    = opaque ? GL_CONSTANT : GL_TEXTURE;
+        envColor[0]  = 1.0f;
+    }
+
+    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
+    glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, combineRGB);
+    glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_TEXTURE);
+    glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
+    if (combineRGB == GL_MODULATE) {
+        glTexEnvi(GL_TEXTURE_ENV, GL_SRC1_RGB, GL_CONSTANT);
+        glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
+    }
+    glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, combineAlpha);
+    glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, src0Alpha);
+    glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
+    if (combineAlpha == GL_MODULATE) {
+        glTexEnvi(GL_TEXTURE_ENV, GL_SRC1_ALPHA, GL_TEXTURE);
+        glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, GL_SRC_ALPHA);
+    }
+    if (combineRGB == GL_MODULATE || src0Alpha == GL_CONSTANT) {
+        envColor[1] = envColor[0];
+        envColor[2] = envColor[0];
+        envColor[3] = envColor[0];
+        glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, envColor);
+    }
+
+    if (alpha < 0xFF || !opaque) {
+        glEnable(GL_BLEND);
+        glBlendFunc(premultipliedAlpha ? GL_ONE : GL_SRC_ALPHA,
+                    GL_ONE_MINUS_SRC_ALPHA);
+    } else {
+        glDisable(GL_BLEND);
+    }
+}
+
+void GLES11RenderEngine::setupDimLayerBlending(int alpha) {
+    glDisable(GL_TEXTURE_EXTERNAL_OES);
+    glDisable(GL_TEXTURE_2D);
+    if (alpha == 0xFF) {
+        glDisable(GL_BLEND);
+    } else {
+        glEnable(GL_BLEND);
+        glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+    }
+    glColor4f(0, 0, 0, alpha/255.0f);
+}
+
+void GLES11RenderEngine::setupLayerTexturing(size_t textureName,
+    bool useFiltering, const float* textureMatrix) {
+    glBindTexture(GL_TEXTURE_EXTERNAL_OES, textureName);
+    GLenum filter = GL_NEAREST;
+    if (useFiltering) {
+        filter = GL_LINEAR;
+    }
+    glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, filter);
+    glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, filter);
+    glMatrixMode(GL_TEXTURE);
+    glLoadMatrixf(textureMatrix);
+    glMatrixMode(GL_MODELVIEW);
+    glDisable(GL_TEXTURE_2D);
+    glEnable(GL_TEXTURE_EXTERNAL_OES);
+}
+
+void GLES11RenderEngine::setupLayerBlackedOut() {
+    glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
+    glMatrixMode(GL_TEXTURE);
+    glLoadIdentity();
+    glMatrixMode(GL_MODELVIEW);
+    glDisable(GL_TEXTURE_EXTERNAL_OES);
+    glEnable(GL_TEXTURE_2D);
+}
+
+void GLES11RenderEngine::disableTexturing() {
+    glDisable(GL_TEXTURE_EXTERNAL_OES);
+    glDisable(GL_TEXTURE_2D);
+}
+
+void GLES11RenderEngine::disableBlending() {
+    glDisable(GL_BLEND);
+}
+
+void GLES11RenderEngine::clearWithColor(const float vertices[][2] , size_t count,
+    float red, float green, float blue, float alpha) {
+    glColor4f(red, green, blue, alpha);
+    glDisable(GL_TEXTURE_EXTERNAL_OES);
+    glDisable(GL_TEXTURE_2D);
+    glDisable(GL_BLEND);
+    glVertexPointer(2, GL_FLOAT, 0, vertices);
+    glDrawArrays(GL_TRIANGLE_FAN, 0, count);
+}
+
+void GLES11RenderEngine::drawMesh2D(
+    const float vertices[][2], const float texCoords[][2], size_t count) {
+    if (texCoords) {
+        glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+        glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
+    }
+    glVertexPointer(2, GL_FLOAT, 0, vertices);
+    glDrawArrays(GL_TRIANGLE_FAN, 0, count);
+    if (texCoords) {
+        glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    }
+}
+
+void GLES11RenderEngine::dump(String8& result) {
+    const GLExtensions& extensions(GLExtensions::getInstance());
+    result.appendFormat("GLES: %s, %s, %s\n",
+            extensions.getVendor(),
+            extensions.getRenderer(),
+            extensions.getVersion());
+    result.appendFormat("%s\n", extensions.getExtension());
+}
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/RenderEngine/GLES11RenderEngine.h b/services/surfaceflinger/RenderEngine/GLES11RenderEngine.h
new file mode 100644
index 0000000..15054bd
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLES11RenderEngine.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef SF_GLES11RENDERENGINE_H_
+#define SF_GLES11RENDERENGINE_H_
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <GLES/gl.h>
+
+#include "RenderEngine.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class String8;
+
+class GLES11RenderEngine : public RenderEngine {
+    GLuint mProtectedTexName;
+    GLint mMaxViewportDims[2];
+    GLint mMaxTextureSize;
+
+public:
+    GLES11RenderEngine();
+
+protected:
+    virtual ~GLES11RenderEngine();
+
+    virtual void dump(String8& result);
+    virtual void setViewportAndProjection(size_t w, size_t h);
+    virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha);
+    virtual void setupDimLayerBlending(int alpha);
+    virtual void setupLayerTexturing(size_t textureName, bool useFiltering, const float* textureMatrix);
+    virtual void setupLayerBlackedOut();
+    virtual void disableTexturing();
+    virtual void disableBlending();
+
+    virtual void clearWithColor(const float vertices[][2], size_t count,
+        float red, float green, float blue, float alpha);
+
+    virtual void drawMesh2D(const float vertices[][2], const float texCoords[][2], size_t count);
+
+    virtual size_t getMaxTextureSize() const;
+    virtual size_t getMaxViewportDims() const;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
+
+#endif /* SF_GLES11RENDERENGINE_H_ */
diff --git a/services/surfaceflinger/RenderEngine/GLExtensions.cpp b/services/surfaceflinger/RenderEngine/GLExtensions.cpp
new file mode 100644
index 0000000..76bbcc1
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/GLExtensions.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "GLExtensions.h"
+
+namespace android {
+// ---------------------------------------------------------------------------
+
+ANDROID_SINGLETON_STATIC_INSTANCE( GLExtensions )
+
+GLExtensions::GLExtensions()
+    : mHaveFramebufferObject(false)
+{
+}
+
+void GLExtensions::initWithGLStrings(
+        GLubyte const* vendor,
+        GLubyte const* renderer,
+        GLubyte const* version,
+        GLubyte const* extensions)
+{
+    mVendor     = (char const*)vendor;
+    mRenderer   = (char const*)renderer;
+    mVersion    = (char const*)version;
+    mExtensions = (char const*)extensions;
+
+    char const* curr = (char const*)extensions;
+    char const* head = curr;
+    do {
+        head = strchr(curr, ' ');
+        String8 s(curr, head ? head-curr : strlen(curr));
+        if (s.length()) {
+            mExtensionList.add(s);
+        }
+        curr = head+1;
+    } while (head);
+
+    if (hasExtension("GL_OES_framebuffer_object")) {
+        mHaveFramebufferObject = true;
+    }
+}
+
+bool GLExtensions::hasExtension(char const* extension) const
+{
+    const String8 s(extension);
+    return mExtensionList.indexOf(s) >= 0;
+}
+
+char const* GLExtensions::getVendor() const {
+    return mVendor.string();
+}
+
+char const* GLExtensions::getRenderer() const {
+    return mRenderer.string();
+}
+
+char const* GLExtensions::getVersion() const {
+    return mVersion.string();
+}
+
+char const* GLExtensions::getExtension() const {
+    return mExtensions.string();
+}
+
+// ---------------------------------------------------------------------------
+}; // namespace android
diff --git a/services/surfaceflinger/GLExtensions.h b/services/surfaceflinger/RenderEngine/GLExtensions.h
similarity index 73%
rename from services/surfaceflinger/GLExtensions.h
rename to services/surfaceflinger/RenderEngine/GLExtensions.h
index c86c66a..d81ed2a 100644
--- a/services/surfaceflinger/GLExtensions.h
+++ b/services/surfaceflinger/RenderEngine/GLExtensions.h
@@ -36,18 +36,12 @@
 {
     friend class Singleton<GLExtensions>;
 
-    bool mHaveTextureExternal   : 1;
-    bool mHaveNpot              : 1;
-    bool mHaveDirectTexture     : 1;
     bool mHaveFramebufferObject : 1;
 
     String8 mVendor;
     String8 mRenderer;
     String8 mVersion;
     String8 mExtensions;
-    String8 mEglVendor;
-    String8 mEglVersion;
-    String8 mEglExtensions;
     SortedVector<String8> mExtensionList;
 
     GLExtensions(const GLExtensions&);
@@ -57,15 +51,6 @@
     GLExtensions();
 
 public:
-    inline bool haveTextureExternal() const {
-        return mHaveTextureExternal;
-    }
-    inline bool haveNpot() const {
-        return mHaveNpot;
-    }
-    inline bool haveDirectTexture() const {
-        return mHaveDirectTexture;
-    }
 
     inline bool haveFramebufferObject() const {
         return mHaveFramebufferObject;
@@ -75,20 +60,13 @@
             GLubyte const* vendor,
             GLubyte const* renderer,
             GLubyte const* version,
-            GLubyte const* extensions,
-            char const* egl_vendor,
-            char const* egl_version,
-            char const* egl_extensions);
+            GLubyte const* extensions);
 
     char const* getVendor() const;
     char const* getRenderer() const;
     char const* getVersion() const;
     char const* getExtension() const;
 
-    char const* getEglVendor() const;
-    char const* getEglVersion() const;
-    char const* getEglExtension() const;
-
     bool hasExtension(char const* extension) const;
 };
 
diff --git a/services/surfaceflinger/RenderEngine/RenderEngine.cpp b/services/surfaceflinger/RenderEngine/RenderEngine.cpp
new file mode 100644
index 0000000..cb77e38
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/RenderEngine.cpp
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cutils/log.h>
+
+#include "RenderEngine.h"
+#include "GLES10RenderEngine.h"
+#include "GLES11RenderEngine.h"
+#include "GLExtensions.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+RenderEngine* RenderEngine::create(EGLDisplay display, EGLConfig config) {
+    // Also create our EGLContext
+    EGLint contextAttributes[] = {
+//            EGL_CONTEXT_CLIENT_VERSION, 2,
+#ifdef EGL_IMG_context_priority
+#ifdef HAS_CONTEXT_PRIORITY
+#warning "using EGL_IMG_context_priority"
+            EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
+#endif
+#endif
+            EGL_NONE, EGL_NONE
+    };
+
+    EGLContext ctxt = eglCreateContext(display, config, NULL, contextAttributes);
+    if (ctxt == EGL_NO_CONTEXT) {
+        // maybe ES 2.x is not supported
+        ALOGW("can't create an ES 2.x context, trying 1.x");
+        ctxt = eglCreateContext(display, config, NULL, contextAttributes + 2);
+    }
+
+    // if can't create a GL context, we can only abort.
+    LOG_ALWAYS_FATAL_IF(ctxt==EGL_NO_CONTEXT, "EGLContext creation failed");
+
+
+    // now figure out what version of GL did we actually get
+    // NOTE: a dummy surface is not needed if KHR_create_context is supported
+
+    EGLint attribs[] = { EGL_WIDTH, 1, EGL_HEIGHT, 1, EGL_NONE, EGL_NONE };
+    EGLSurface dummy = eglCreatePbufferSurface(display, config, attribs);
+    LOG_ALWAYS_FATAL_IF(dummy==EGL_NO_SURFACE, "can't create dummy pbuffer");
+    EGLBoolean success = eglMakeCurrent(display, dummy, dummy, ctxt);
+    LOG_ALWAYS_FATAL_IF(!success, "can't make dummy pbuffer current");
+
+    GLExtensions& extensions(GLExtensions::getInstance());
+    extensions.initWithGLStrings(
+            glGetString(GL_VENDOR),
+            glGetString(GL_RENDERER),
+            glGetString(GL_VERSION),
+            glGetString(GL_EXTENSIONS));
+
+    GlesVersion version = parseGlesVersion( extensions.getVersion() );
+
+    // initialize the renderer while GL is current
+
+    RenderEngine* engine = NULL;
+    switch (version) {
+    case GLES_VERSION_1_0:
+        engine = new GLES10RenderEngine();
+        break;
+    case GLES_VERSION_1_1:
+        engine = new GLES11RenderEngine();
+        break;
+    case GLES_VERSION_2_0:
+    case GLES_VERSION_3_0:
+        //engine = new GLES20RenderEngine();
+        break;
+    }
+    engine->setEGLContext(ctxt);
+
+    ALOGI("OpenGL ES informations:");
+    ALOGI("vendor    : %s", extensions.getVendor());
+    ALOGI("renderer  : %s", extensions.getRenderer());
+    ALOGI("version   : %s", extensions.getVersion());
+    ALOGI("extensions: %s", extensions.getExtension());
+    ALOGI("GL_MAX_TEXTURE_SIZE = %d", engine->getMaxTextureSize());
+    ALOGI("GL_MAX_VIEWPORT_DIMS = %d", engine->getMaxViewportDims());
+
+    eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+    eglDestroySurface(display, dummy);
+
+    return engine;
+}
+
+RenderEngine::RenderEngine() : mEGLContext(EGL_NO_CONTEXT) {
+}
+
+RenderEngine::~RenderEngine() {
+}
+
+void RenderEngine::setEGLContext(EGLContext ctxt) {
+    mEGLContext = ctxt;
+}
+
+EGLContext RenderEngine::getEGLContext() const {
+    return mEGLContext;
+}
+
+void RenderEngine::checkErrors() const {
+    do {
+        // there could be more than one error flag
+        GLenum error = glGetError();
+        if (error == GL_NO_ERROR)
+            break;
+        ALOGE("GL error 0x%04x", int(error));
+    } while (true);
+}
+
+RenderEngine::GlesVersion RenderEngine::parseGlesVersion(const char* str) {
+    int major, minor;
+    if (sscanf(str, "OpenGL ES-CM %d.%d", &major, &minor) != 2) {
+        if (sscanf(str, "OpenGL ES %d.%d", &major, &minor) != 2) {
+            ALOGW("Unable to parse GL_VERSION string: \"%s\"", str);
+            return GLES_VERSION_1_0;
+        }
+    }
+
+    if (major == 1 && minor == 0) return GLES_VERSION_1_0;
+    if (major == 1 && minor >= 1) return GLES_VERSION_1_1;
+    if (major == 2 && minor >= 0) return GLES_VERSION_2_0;
+    if (major == 3 && minor >= 0) return GLES_VERSION_3_0;
+
+    ALOGW("Unrecognized OpenGL ES version: %d.%d", major, minor);
+    return GLES_VERSION_1_0;
+}
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
diff --git a/services/surfaceflinger/RenderEngine/RenderEngine.h b/services/surfaceflinger/RenderEngine/RenderEngine.h
new file mode 100644
index 0000000..e43bfa4
--- /dev/null
+++ b/services/surfaceflinger/RenderEngine/RenderEngine.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef SF_RENDERENGINE_H_
+#define SF_RENDERENGINE_H_
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <EGL/egl.h>
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class String8;
+
+class RenderEngine {
+    enum GlesVersion {
+        GLES_VERSION_1_0    = 0x10000,
+        GLES_VERSION_1_1    = 0x10001,
+        GLES_VERSION_2_0    = 0x20000,
+        GLES_VERSION_3_0    = 0x30000,
+    };
+    static GlesVersion parseGlesVersion(const char* str);
+
+    EGLContext mEGLContext;
+    void setEGLContext(EGLContext ctxt);
+
+protected:
+    RenderEngine();
+    virtual ~RenderEngine() = 0;
+
+public:
+    static RenderEngine* create(EGLDisplay display, EGLConfig config);
+
+    virtual void checkErrors() const;
+
+    virtual void dump(String8& result) = 0;
+    virtual void setViewportAndProjection(size_t w, size_t h) = 0;
+    virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha) = 0;
+    virtual void setupDimLayerBlending(int alpha) = 0;
+    virtual void setupLayerTexturing(size_t textureName, bool useFiltering, const float* textureMatrix) = 0;
+    virtual void setupLayerBlackedOut() = 0;
+
+    virtual void disableTexturing() = 0;
+    virtual void disableBlending() = 0;
+
+    virtual void clearWithColor(const float vertices[][2], size_t count,
+        float red, float green, float blue, float alpha) = 0;
+
+    virtual void drawMesh2D(const float vertices[][2], const float texCoords[][2], size_t count) = 0;
+
+    virtual size_t getMaxTextureSize() const = 0;
+    virtual size_t getMaxViewportDims() const = 0;
+
+    EGLContext getEGLContext() const;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
+
+#endif /* SF_RENDERENGINE_H_ */
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index ef0d521..9adabe8 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -24,6 +24,7 @@
 
 #include <EGL/egl.h>
 #include <GLES/gl.h>
+#include <GLES/glext.h>
 
 #include <cutils/log.h>
 #include <cutils/properties.h>
@@ -55,12 +56,12 @@
 #include <private/android_filesystem_config.h>
 #include <private/gui/SyncFeatures.h>
 
+#include "Client.h"
 #include "clz.h"
+#include "Colorizer.h"
 #include "DdmConnection.h"
 #include "DisplayDevice.h"
-#include "Client.h"
 #include "EventThread.h"
-#include "GLExtensions.h"
 #include "Layer.h"
 #include "LayerDim.h"
 #include "SurfaceFlinger.h"
@@ -69,8 +70,16 @@
 #include "DisplayHardware/HWComposer.h"
 #include "DisplayHardware/VirtualDisplaySurface.h"
 
+#include "RenderEngine/RenderEngine.h"
+
 #define DISPLAY_COUNT       1
 
+/*
+ * DEBUG_SCREENSHOTS: set to true to check that screenshots are not all
+ * black pixels.
+ */
+#define DEBUG_SCREENSHOTS   false
+
 EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name);
 
 namespace android {
@@ -90,6 +99,7 @@
         mAnimTransactionPending(false),
         mLayersRemoved(false),
         mRepaintEverything(0),
+        mRenderEngine(NULL),
         mBootTime(systemTime()),
         mVisibleRegionsDirty(false),
         mHwWorkListDirty(false),
@@ -348,7 +358,9 @@
     status_t err;
 
     EGLAttributeVector attribs;
-    attribs[EGL_SURFACE_TYPE]               = EGL_WINDOW_BIT;
+    // TODO: enable ES2
+    //attribs[EGL_RENDERABLE_TYPE]            = EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT;
+    attribs[EGL_SURFACE_TYPE]               = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
     attribs[EGL_RECORDABLE_ANDROID]         = EGL_TRUE;
     attribs[EGL_FRAMEBUFFER_TARGET_ANDROID] = EGL_TRUE;
     attribs[EGL_RED_SIZE]                   = 8;
@@ -359,25 +371,12 @@
     if (!err)
         goto success;
 
-    // maybe we failed because of EGL_FRAMEBUFFER_TARGET_ANDROID
-    ALOGW("no suitable EGLConfig found, trying without EGL_FRAMEBUFFER_TARGET_ANDROID");
+    // this didn't work, probably because we're on the emulator...
+    // try a simplified query
+    ALOGW("no suitable EGLConfig found, trying a simpler query");
+    attribs.remove(EGL_RENDERABLE_TYPE);
     attribs.remove(EGL_FRAMEBUFFER_TARGET_ANDROID);
-    err = selectConfigForAttribute(display, attribs,
-            EGL_NATIVE_VISUAL_ID, nativeVisualId, &config);
-    if (!err)
-        goto success;
-
-    // maybe we failed because of EGL_RECORDABLE_ANDROID
-    ALOGW("no suitable EGLConfig found, trying without EGL_RECORDABLE_ANDROID");
     attribs.remove(EGL_RECORDABLE_ANDROID);
-    err = selectConfigForAttribute(display, attribs,
-            EGL_NATIVE_VISUAL_ID, nativeVisualId, &config);
-    if (!err)
-        goto success;
-
-    // allow less than 24-bit color; the non-gpu-accelerated emulator only
-    // supports 16-bit color
-    ALOGW("no suitable EGLConfig found, trying with 16-bit color allowed");
     attribs.remove(EGL_RED_SIZE);
     attribs.remove(EGL_GREEN_SIZE);
     attribs.remove(EGL_BLUE_SIZE);
@@ -387,8 +386,7 @@
         goto success;
 
     // this EGL is too lame for Android
-    ALOGE("no suitable EGLConfig found, giving up");
-
+    LOG_ALWAYS_FATAL("no suitable EGLConfig found, giving up");
     return 0;
 
 success:
@@ -397,79 +395,6 @@
     return config;
 }
 
-EGLContext SurfaceFlinger::createGLContext(EGLDisplay display, EGLConfig config) {
-    // Also create our EGLContext
-    EGLint contextAttributes[] = {
-#ifdef EGL_IMG_context_priority
-#ifdef HAS_CONTEXT_PRIORITY
-#warning "using EGL_IMG_context_priority"
-            EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_HIGH_IMG,
-#endif
-#endif
-            EGL_NONE, EGL_NONE
-    };
-    EGLContext ctxt = eglCreateContext(display, config, NULL, contextAttributes);
-    ALOGE_IF(ctxt==EGL_NO_CONTEXT, "EGLContext creation failed");
-    return ctxt;
-}
-
-void SurfaceFlinger::initializeGL(EGLDisplay display) {
-    GLExtensions& extensions(GLExtensions::getInstance());
-    extensions.initWithGLStrings(
-            glGetString(GL_VENDOR),
-            glGetString(GL_RENDERER),
-            glGetString(GL_VERSION),
-            glGetString(GL_EXTENSIONS),
-            eglQueryString(display, EGL_VENDOR),
-            eglQueryString(display, EGL_VERSION),
-            eglQueryString(display, EGL_EXTENSIONS));
-
-    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
-    glGetIntegerv(GL_MAX_VIEWPORT_DIMS, mMaxViewportDims);
-
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
-    glPixelStorei(GL_PACK_ALIGNMENT, 4);
-    glEnableClientState(GL_VERTEX_ARRAY);
-    glShadeModel(GL_FLAT);
-    glDisable(GL_DITHER);
-    glDisable(GL_CULL_FACE);
-
-    struct pack565 {
-        inline uint16_t operator() (int r, int g, int b) const {
-            return (r<<11)|(g<<5)|b;
-        }
-    } pack565;
-
-    const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) };
-    glGenTextures(1, &mProtectedTexName);
-    glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
-    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
-    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0,
-            GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData);
-
-    // print some debugging info
-    EGLint r,g,b,a;
-    eglGetConfigAttrib(display, mEGLConfig, EGL_RED_SIZE,   &r);
-    eglGetConfigAttrib(display, mEGLConfig, EGL_GREEN_SIZE, &g);
-    eglGetConfigAttrib(display, mEGLConfig, EGL_BLUE_SIZE,  &b);
-    eglGetConfigAttrib(display, mEGLConfig, EGL_ALPHA_SIZE, &a);
-    ALOGI("EGL informations:");
-    ALOGI("vendor    : %s", extensions.getEglVendor());
-    ALOGI("version   : %s", extensions.getEglVersion());
-    ALOGI("extensions: %s", extensions.getEglExtension());
-    ALOGI("Client API: %s", eglQueryString(display, EGL_CLIENT_APIS)?:"Not Supported");
-    ALOGI("EGLSurface: %d-%d-%d-%d, config=%p", r, g, b, a, mEGLConfig);
-    ALOGI("OpenGL ES informations:");
-    ALOGI("vendor    : %s", extensions.getVendor());
-    ALOGI("renderer  : %s", extensions.getRenderer());
-    ALOGI("version   : %s", extensions.getVersion());
-    ALOGI("extensions: %s", extensions.getExtension());
-    ALOGI("GL_MAX_TEXTURE_SIZE = %d", mMaxTextureSize);
-    ALOGI("GL_MAX_VIEWPORT_DIMS = %d x %d", mMaxViewportDims[0], mMaxViewportDims[1]);
-}
 
 status_t SurfaceFlinger::readyToRun()
 {
@@ -487,10 +412,27 @@
     mHwc = new HWComposer(this,
             *static_cast<HWComposer::EventHandler *>(this));
 
-    // initialize the config and context
-    EGLint format = mHwc->getVisualID();
-    mEGLConfig  = selectEGLConfig(mEGLDisplay, format);
-    mEGLContext = createGLContext(mEGLDisplay, mEGLConfig);
+    // initialize the config and context (can't fail)
+    mEGLConfig = selectEGLConfig(mEGLDisplay, mHwc->getVisualID());
+
+    // print some debugging info
+    EGLint r,g,b,a;
+    eglGetConfigAttrib(mEGLDisplay, mEGLConfig, EGL_RED_SIZE,   &r);
+    eglGetConfigAttrib(mEGLDisplay, mEGLConfig, EGL_GREEN_SIZE, &g);
+    eglGetConfigAttrib(mEGLDisplay, mEGLConfig, EGL_BLUE_SIZE,  &b);
+    eglGetConfigAttrib(mEGLDisplay, mEGLConfig, EGL_ALPHA_SIZE, &a);
+    ALOGI("EGL informations:");
+    ALOGI("vendor    : %s", eglQueryString(mEGLDisplay, EGL_VENDOR));
+    ALOGI("version   : %s", eglQueryString(mEGLDisplay, EGL_VERSION));
+    ALOGI("extensions: %s", eglQueryString(mEGLDisplay, EGL_EXTENSIONS));
+    ALOGI("Client API: %s", eglQueryString(mEGLDisplay, EGL_CLIENT_APIS)?:"Not Supported");
+    ALOGI("EGLSurface: %d-%d-%d-%d, config=%p", r, g, b, a, mEGLConfig);
+
+    // get a RenderEngine for the given display / config (can't fail)
+    mRenderEngine = RenderEngine::create(mEGLDisplay, mEGLConfig);
+
+    // retrieve the EGL context that was selected/created
+    mEGLContext = mRenderEngine->getEGLContext();
 
     // figure out which format we got
     eglGetConfigAttrib(mEGLDisplay, mEGLConfig,
@@ -524,17 +466,6 @@
         }
     }
 
-    //  we need a GL context current in a few places, when initializing
-    //  OpenGL ES (see below), or creating a layer,
-    //  or when a texture is (asynchronously) destroyed, and for that
-    //  we need a valid surface, so it's convenient to use the main display
-    //  for that.
-    sp<const DisplayDevice> hw(getDefaultDisplayDevice());
-
-    //  initialize OpenGL ES
-    DisplayDevice::makeCurrent(mEGLDisplay, hw, mEGLContext);
-    initializeGL(mEGLDisplay);
-
     // start the EventThread
     mEventThread = new EventThread(this);
     mEventQueue.setEventThread(mEventThread);
@@ -542,7 +473,6 @@
     // initialize our drawing state
     mDrawingState = mCurrentState;
 
-
     // We're now ready to accept clients...
     mReadyToRunBarrier.open();
 
@@ -566,13 +496,12 @@
     property_set("ctl.start", "bootanim");
 }
 
-uint32_t SurfaceFlinger::getMaxTextureSize() const {
-    return mMaxTextureSize;
+size_t SurfaceFlinger::getMaxTextureSize() const {
+    return mRenderEngine->getMaxTextureSize();
 }
 
-uint32_t SurfaceFlinger::getMaxViewportDims() const {
-    return mMaxViewportDims[0] < mMaxViewportDims[1] ?
-            mMaxViewportDims[0] : mMaxViewportDims[1];
+size_t SurfaceFlinger::getMaxViewportDims() const {
+    return mRenderEngine->getMaxViewportDims();
 }
 
 // ----------------------------------------------------------------------------
@@ -837,10 +766,10 @@
 void SurfaceFlinger::preComposition()
 {
     bool needExtraInvalidate = false;
-    const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
-    const size_t count = currentLayers.size();
+    const LayerVector& layers(mDrawingState.layersSortedByZ);
+    const size_t count = layers.size();
     for (size_t i=0 ; i<count ; i++) {
-        if (currentLayers[i]->onPreComposition()) {
+        if (layers[i]->onPreComposition()) {
             needExtraInvalidate = true;
         }
     }
@@ -851,10 +780,10 @@
 
 void SurfaceFlinger::postComposition()
 {
-    const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
-    const size_t count = currentLayers.size();
+    const LayerVector& layers(mDrawingState.layersSortedByZ);
+    const size_t count = layers.size();
     for (size_t i=0 ; i<count ; i++) {
-        currentLayers[i]->onPostComposition();
+        layers[i]->onPostComposition();
     }
 
     if (mAnimCompositionPending) {
@@ -881,7 +810,7 @@
         mVisibleRegionsDirty = false;
         invalidateHwcGeometry();
 
-        const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
+        const LayerVector& layers(mDrawingState.layersSortedByZ);
         for (size_t dpy=0 ; dpy<mDisplays.size() ; dpy++) {
             Region opaqueRegion;
             Region dirtyRegion;
@@ -890,13 +819,13 @@
             const Transform& tr(hw->getTransform());
             const Rect bounds(hw->getBounds());
             if (hw->canDraw()) {
-                SurfaceFlinger::computeVisibleRegions(currentLayers,
+                SurfaceFlinger::computeVisibleRegions(layers,
                         hw->getLayerStack(), dirtyRegion, opaqueRegion);
 
-                const size_t count = currentLayers.size();
+                const size_t count = layers.size();
                 for (size_t i=0 ; i<count ; i++) {
-                    const sp<Layer>& layer(currentLayers[i]);
-                    const Layer::State& s(layer->drawingState());
+                    const sp<Layer>& layer(layers[i]);
+                    const Layer::State& s(layer->getDrawingState());
                     if (s.layerStack == hw->getLayerStack()) {
                         Region drawRegion(tr.transform(
                                 layer->visibleNonTransparentRegion));
@@ -966,6 +895,11 @@
 
         status_t err = hwc.prepare();
         ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err));
+
+        for (size_t dpy=0 ; dpy<mDisplays.size() ; dpy++) {
+            sp<const DisplayDevice> hw(mDisplays[dpy]);
+            hw->prepareFrame(hwc);
+        }
     }
 }
 
@@ -1004,8 +938,7 @@
             // EGL spec says:
             //   "surface must be bound to the calling thread's current context,
             //    for the current rendering API."
-            DisplayDevice::makeCurrent(mEGLDisplay,
-                    getDefaultDisplayDevice(), mEGLContext);
+            getDefaultDisplayDevice()->makeCurrent(mEGLDisplay, mEGLContext);
         }
         hwc.commit();
     }
@@ -1037,6 +970,12 @@
 {
     ATRACE_CALL();
 
+    // here we keep a copy of the drawing state (that is the state that's
+    // going to be overwritten by handleTransactionLocked()) outside of
+    // mStateLock so that the side-effects of the State assignment
+    // don't happen with mStateLock held (which can cause deadlocks).
+    State drawingState(mDrawingState);
+
     Mutex::Autolock _l(mStateLock);
     const nsecs_t now = systemTime();
     mDebugInTransaction = now;
@@ -1106,7 +1045,7 @@
                         // be sure that nothing associated with this display
                         // is current.
                         const sp<const DisplayDevice> defaultDisplay(getDefaultDisplayDevice());
-                        DisplayDevice::makeCurrent(mEGLDisplay, defaultDisplay, mEGLContext);
+                        defaultDisplay->makeCurrent(mEGLDisplay, mEGLContext);
                         sp<DisplayDevice> hw(getDisplayDevice(draw.keyAt(i)));
                         if (hw != NULL)
                             hw->disconnect(getHwComposer());
@@ -1232,7 +1171,7 @@
             // layerStack first (so we don't have to traverse the list
             // of displays for every layer).
             const sp<Layer>& layer(currentLayers[i]);
-            uint32_t layerStack = layer->drawingState().layerStack;
+            uint32_t layerStack = layer->getDrawingState().layerStack;
             if (i==0 || currentlayerStack != layerStack) {
                 currentlayerStack = layerStack;
                 // figure out if this layerstack is mirrored
@@ -1269,8 +1208,8 @@
      * Perform our own transaction if needed
      */
 
-    const LayerVector& previousLayers(mDrawingState.layersSortedByZ);
-    if (currentLayers.size() > previousLayers.size()) {
+    const LayerVector& layers(mDrawingState.layersSortedByZ);
+    if (currentLayers.size() > layers.size()) {
         // layers have been added
         mVisibleRegionsDirty = true;
     }
@@ -1280,15 +1219,15 @@
     if (mLayersRemoved) {
         mLayersRemoved = false;
         mVisibleRegionsDirty = true;
-        const size_t count = previousLayers.size();
+        const size_t count = layers.size();
         for (size_t i=0 ; i<count ; i++) {
-            const sp<Layer>& layer(previousLayers[i]);
+            const sp<Layer>& layer(layers[i]);
             if (currentLayers.indexOf(layer) < 0) {
                 // this layer is not visible anymore
                 // TODO: we could traverse the tree from front to back and
                 //       compute the actual visible region
                 // TODO: we could cache the transformed region
-                const Layer::State& s(layer->drawingState());
+                const Layer::State& s(layer->getDrawingState());
                 Region visibleReg = s.transform.transform(
                         Region(Rect(s.active.w, s.active.h)));
                 invalidateLayerStack(s.layerStack, visibleReg);
@@ -1336,7 +1275,7 @@
         const sp<Layer>& layer = currentLayers[i];
 
         // start with the whole surface at its current location
-        const Layer::State& s(layer->drawingState());
+        const Layer::State& s(layer->getDrawingState());
 
         // only consider the layers on the given layer stack
         if (s.layerStack != layerStack)
@@ -1473,12 +1412,12 @@
     Region dirtyRegion;
 
     bool visibleRegions = false;
-    const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
-    const size_t count = currentLayers.size();
+    const LayerVector& layers(mDrawingState.layersSortedByZ);
+    const size_t count = layers.size();
     for (size_t i=0 ; i<count ; i++) {
-        const sp<Layer>& layer(currentLayers[i]);
+        const sp<Layer>& layer(layers[i]);
         const Region dirty(layer->latchBuffer(visibleRegions));
-        const Layer::State& s(layer->drawingState());
+        const Layer::State& s(layer->getDrawingState());
         invalidateLayerStack(s.layerStack, dirty);
     }
 
@@ -1537,7 +1476,7 @@
 
     const bool hasGlesComposition = hwc.hasGlesComposition(id) || (cur==end);
     if (hasGlesComposition) {
-        if (!DisplayDevice::makeCurrent(mEGLDisplay, hw, mEGLContext)) {
+        if (!hw->makeCurrent(mEGLDisplay, mEGLContext)) {
             ALOGW("DisplayDevice::makeCurrent failed. Aborting surface composition for display %s",
                   hw->getDisplayName().string());
             return;
@@ -2145,19 +2084,15 @@
 
 status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args)
 {
-    const size_t SIZE = 4096;
-    char buffer[SIZE];
     String8 result;
 
-
     IPCThreadState* ipc = IPCThreadState::self();
     const int pid = ipc->getCallingPid();
     const int uid = ipc->getCallingUid();
     if ((uid != AID_SHELL) &&
             !PermissionCache::checkPermission(sDump, pid, uid)) {
-        snprintf(buffer, SIZE, "Permission Denial: "
+        result.appendFormat("Permission Denial: "
                 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", pid, uid);
-        result.append(buffer);
     } else {
         // Try to get the main lock, but don't insist if we can't
         // (this would indicate SF is stuck, but we want to be able to
@@ -2168,10 +2103,9 @@
         }
         const bool locked(retry >= 0);
         if (!locked) {
-            snprintf(buffer, SIZE,
+            result.append(
                     "SurfaceFlinger appears to be unresponsive, "
                     "dumping anyways (no locks held)\n");
-            result.append(buffer);
         }
 
         bool dumpAll = true;
@@ -2181,27 +2115,27 @@
             if ((index < numArgs) &&
                     (args[index] == String16("--list"))) {
                 index++;
-                listLayersLocked(args, index, result, buffer, SIZE);
+                listLayersLocked(args, index, result);
                 dumpAll = false;
             }
 
             if ((index < numArgs) &&
                     (args[index] == String16("--latency"))) {
                 index++;
-                dumpStatsLocked(args, index, result, buffer, SIZE);
+                dumpStatsLocked(args, index, result);
                 dumpAll = false;
             }
 
             if ((index < numArgs) &&
                     (args[index] == String16("--latency-clear"))) {
                 index++;
-                clearStatsLocked(args, index, result, buffer, SIZE);
+                clearStatsLocked(args, index, result);
                 dumpAll = false;
             }
         }
 
         if (dumpAll) {
-            dumpAllLocked(result, buffer, SIZE);
+            dumpAllLocked(args, index, result);
         }
 
         if (locked) {
@@ -2213,19 +2147,18 @@
 }
 
 void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE) const
+        String8& result) const
 {
     const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
     const size_t count = currentLayers.size();
     for (size_t i=0 ; i<count ; i++) {
         const sp<Layer>& layer(currentLayers[i]);
-        snprintf(buffer, SIZE, "%s\n", layer->getName().string());
-        result.append(buffer);
+        result.appendFormat("%s\n", layer->getName().string());
     }
 }
 
 void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE) const
+        String8& result) const
 {
     String8 name;
     if (index < args.size()) {
@@ -2245,14 +2178,14 @@
         for (size_t i=0 ; i<count ; i++) {
             const sp<Layer>& layer(currentLayers[i]);
             if (name == layer->getName()) {
-                layer->dumpStats(result, buffer, SIZE);
+                layer->dumpStats(result);
             }
         }
     }
 }
 
 void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE)
+        String8& result)
 {
     String8 name;
     if (index < args.size()) {
@@ -2292,9 +2225,18 @@
     result.append(config);
 }
 
-void SurfaceFlinger::dumpAllLocked(
-        String8& result, char* buffer, size_t SIZE) const
+void SurfaceFlinger::dumpAllLocked(const Vector<String16>& args, size_t& index,
+        String8& result) const
 {
+    bool colorize = false;
+    if (index < args.size()
+            && (args[index] == String16("--color"))) {
+        colorize = true;
+        index++;
+    }
+
+    Colorizer colorizer(colorize);
+
     // figure out if we're stuck somewhere
     const nsecs_t now = systemTime();
     const nsecs_t inSwapBuffers(mDebugInSwapBuffers);
@@ -2305,13 +2247,18 @@
     /*
      * Dump library configuration.
      */
+
+    colorizer.bold(result);
     result.append("Build configuration:");
+    colorizer.reset(result);
     appendSfConfigString(result);
     appendUiConfigString(result);
     appendGuiConfigString(result);
     result.append("\n");
 
+    colorizer.bold(result);
     result.append("Sync configuration: ");
+    colorizer.reset(result);
     result.append(SyncFeatures::getInstance().toString());
     result.append("\n");
 
@@ -2320,56 +2267,50 @@
      */
     const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
     const size_t count = currentLayers.size();
-    snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count);
-    result.append(buffer);
+    colorizer.bold(result);
+    result.appendFormat("Visible layers (count = %d)\n", count);
+    colorizer.reset(result);
     for (size_t i=0 ; i<count ; i++) {
         const sp<Layer>& layer(currentLayers[i]);
-        layer->dump(result, buffer, SIZE);
+        layer->dump(result, colorizer);
     }
 
     /*
      * Dump Display state
      */
 
-    snprintf(buffer, SIZE, "Displays (%d entries)\n", mDisplays.size());
-    result.append(buffer);
+    colorizer.bold(result);
+    result.appendFormat("Displays (%d entries)\n", mDisplays.size());
+    colorizer.reset(result);
     for (size_t dpy=0 ; dpy<mDisplays.size() ; dpy++) {
         const sp<const DisplayDevice>& hw(mDisplays[dpy]);
-        hw->dump(result, buffer, SIZE);
+        hw->dump(result);
     }
 
     /*
      * Dump SurfaceFlinger global state
      */
 
-    snprintf(buffer, SIZE, "SurfaceFlinger global state:\n");
-    result.append(buffer);
+    colorizer.bold(result);
+    result.append("SurfaceFlinger global state:\n");
+    colorizer.reset(result);
 
     HWComposer& hwc(getHwComposer());
     sp<const DisplayDevice> hw(getDefaultDisplayDevice());
-    const GLExtensions& extensions(GLExtensions::getInstance());
 
-    snprintf(buffer, SIZE, "EGL implementation : %s\n",
+    colorizer.bold(result);
+    result.appendFormat("EGL implementation : %s\n",
             eglQueryStringImplementationANDROID(mEGLDisplay, EGL_VERSION));
-    result.append(buffer);
-    snprintf(buffer, SIZE, "%s\n",
+    colorizer.reset(result);
+    result.appendFormat("%s\n",
             eglQueryStringImplementationANDROID(mEGLDisplay, EGL_EXTENSIONS));
-    result.append(buffer);
 
-    snprintf(buffer, SIZE, "GLES: %s, %s, %s\n",
-            extensions.getVendor(),
-            extensions.getRenderer(),
-            extensions.getVersion());
-    result.append(buffer);
-    snprintf(buffer, SIZE, "%s\n", extensions.getExtension());
-    result.append(buffer);
+    mRenderEngine->dump(result);
 
     hw->undefinedRegion.dump(result, "undefinedRegion");
-    snprintf(buffer, SIZE,
-            "  orientation=%d, canDraw=%d\n",
+    result.appendFormat("  orientation=%d, canDraw=%d\n",
             hw->getOrientation(), hw->canDraw());
-    result.append(buffer);
-    snprintf(buffer, SIZE,
+    result.appendFormat(
             "  last eglSwapBuffers() time: %f us\n"
             "  last transaction time     : %f us\n"
             "  transaction-flags         : %08x\n"
@@ -2387,31 +2328,28 @@
             hwc.getDpiY(HWC_DISPLAY_PRIMARY),
             mEGLNativeVisualId,
             !mGpuToCpuSupported);
-    result.append(buffer);
 
-    snprintf(buffer, SIZE, "  eglSwapBuffers time: %f us\n",
+    result.appendFormat("  eglSwapBuffers time: %f us\n",
             inSwapBuffersDuration/1000.0);
-    result.append(buffer);
 
-    snprintf(buffer, SIZE, "  transaction time: %f us\n",
+    result.appendFormat("  transaction time: %f us\n",
             inTransactionDuration/1000.0);
-    result.append(buffer);
 
     /*
      * VSYNC state
      */
-    mEventThread->dump(result, buffer, SIZE);
+    mEventThread->dump(result);
 
     /*
      * Dump HWComposer state
      */
-    snprintf(buffer, SIZE, "h/w composer state:\n");
-    result.append(buffer);
-    snprintf(buffer, SIZE, "  h/w composer %s and %s\n",
+    colorizer.bold(result);
+    result.append("h/w composer state:\n");
+    colorizer.reset(result);
+    result.appendFormat("  h/w composer %s and %s\n",
             hwc.initCheck()==NO_ERROR ? "present" : "not present",
                     (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled");
-    result.append(buffer);
-    hwc.dump(result, buffer, SIZE);
+    hwc.dump(result);
 
     /*
      * Dump gralloc state
@@ -2651,11 +2589,12 @@
     }
 };
 
+
 status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
         const sp<IGraphicBufferProducer>& producer,
         uint32_t reqWidth, uint32_t reqHeight,
         uint32_t minLayerZ, uint32_t maxLayerZ,
-        bool isCpuConsumer) {
+        bool useReadPixels) {
 
     if (CC_UNLIKELY(display == 0))
         return BAD_VALUE;
@@ -2663,7 +2602,6 @@
     if (CC_UNLIKELY(producer == 0))
         return BAD_VALUE;
 
-
     class MessageCaptureScreen : public MessageBase {
         SurfaceFlinger* flinger;
         sp<IBinder> display;
@@ -2691,13 +2629,10 @@
         virtual bool handler() {
             Mutex::Autolock _l(flinger->mStateLock);
             sp<const DisplayDevice> hw(flinger->getDisplayDevice(display));
-            if (!useReadPixels) {
-                result = flinger->captureScreenImplLocked(hw,
-                        producer, reqWidth, reqHeight, minLayerZ, maxLayerZ);
-            } else {
-                result = flinger->captureScreenImplCpuConsumerLocked(hw,
-                        producer, reqWidth, reqHeight, minLayerZ, maxLayerZ);
-            }
+            bool useReadPixels = this->useReadPixels && !flinger->mGpuToCpuSupported;
+            result = flinger->captureScreenImplLocked(hw,
+                    producer, reqWidth, reqHeight, minLayerZ, maxLayerZ,
+                    useReadPixels);
             static_cast<GraphicProducerWrapper*>(producer->asBinder().get())->exit(result);
             return true;
         }
@@ -2710,25 +2645,6 @@
     // scheduled at this time, this will end-up being a no-op as well.
     mEventQueue.invalidateTransactionNow();
 
-    bool useReadPixels = false;
-    if (isCpuConsumer) {
-        bool formatSupportedBytBitmap =
-                (mEGLNativeVisualId == HAL_PIXEL_FORMAT_RGBA_8888) ||
-                (mEGLNativeVisualId == HAL_PIXEL_FORMAT_RGBX_8888);
-        if (formatSupportedBytBitmap == false) {
-            // the pixel format we have is not compatible with
-            // Bitmap.java, which is the likely client of this API,
-            // so we just revert to glReadPixels() in that case.
-            useReadPixels = true;
-        }
-        if (mGpuToCpuSupported == false) {
-            // When we know the GL->CPU path works, we can call
-            // captureScreenImplLocked() directly, instead of using the
-            // glReadPixels() workaround.
-            useReadPixels = true;
-        }
-    }
-
     // this creates a "fake" BBinder which will serve as a "fake" remote
     // binder to receive the marshaled calls and forward them to the
     // real remote (a BpGraphicBufferProducer)
@@ -2786,7 +2702,7 @@
     const size_t count = layers.size();
     for (size_t i=0 ; i<count ; ++i) {
         const sp<Layer>& layer(layers[i]);
-        const Layer::State& state(layer->drawingState());
+        const Layer::State& state(layer->getDrawingState());
         if (state.layerStack == hw->getLayerStack()) {
             if (state.z >= minLayerZ && state.z <= maxLayerZ) {
                 if (layer->isVisible()) {
@@ -2807,7 +2723,8 @@
         const sp<const DisplayDevice>& hw,
         const sp<IGraphicBufferProducer>& producer,
         uint32_t reqWidth, uint32_t reqHeight,
-        uint32_t minLayerZ, uint32_t maxLayerZ)
+        uint32_t minLayerZ, uint32_t maxLayerZ,
+        bool useReadPixels)
 {
     ATRACE_CALL();
 
@@ -2827,145 +2744,141 @@
         return BAD_VALUE;
     }
 
-    reqWidth = (!reqWidth) ? hw_w : reqWidth;
-    reqHeight = (!reqHeight) ? hw_h : reqHeight;
-
-    // Create a surface to render into
-    sp<Surface> surface = new Surface(producer);
-    ANativeWindow* const window = surface.get();
-
-    // set the buffer size to what the user requested
-    native_window_set_buffers_user_dimensions(window, reqWidth, reqHeight);
-
-    // and create the corresponding EGLSurface
-    EGLSurface eglSurface = eglCreateWindowSurface(
-            mEGLDisplay, mEGLConfig, window, NULL);
-    if (eglSurface == EGL_NO_SURFACE) {
-        ALOGE("captureScreenImplLocked: eglCreateWindowSurface() failed 0x%4x",
-                eglGetError());
-        return BAD_VALUE;
-    }
-
-    if (!eglMakeCurrent(mEGLDisplay, eglSurface, eglSurface, mEGLContext)) {
-        ALOGE("captureScreenImplLocked: eglMakeCurrent() failed 0x%4x",
-                eglGetError());
-        eglDestroySurface(mEGLDisplay, eglSurface);
-        return BAD_VALUE;
-    }
-
-    renderScreenImplLocked(hw, reqWidth, reqHeight, minLayerZ, maxLayerZ, false);
-
-    // and finishing things up...
-    if (eglSwapBuffers(mEGLDisplay, eglSurface) != EGL_TRUE) {
-        ALOGE("captureScreenImplLocked: eglSwapBuffers() failed 0x%4x",
-                eglGetError());
-        eglDestroySurface(mEGLDisplay, eglSurface);
-        return BAD_VALUE;
-    }
-
-    eglDestroySurface(mEGLDisplay, eglSurface);
-
-    return NO_ERROR;
-}
-
-
-status_t SurfaceFlinger::captureScreenImplCpuConsumerLocked(
-        const sp<const DisplayDevice>& hw,
-        const sp<IGraphicBufferProducer>& producer,
-        uint32_t reqWidth, uint32_t reqHeight,
-        uint32_t minLayerZ, uint32_t maxLayerZ)
-{
-    ATRACE_CALL();
-
-    if (!GLExtensions::getInstance().haveFramebufferObject()) {
-        return INVALID_OPERATION;
-    }
-
-    // get screen geometry
-    const uint32_t hw_w = hw->getWidth();
-    const uint32_t hw_h = hw->getHeight();
-
-    // if we have secure windows on this display, never allow the screen capture
-    if (hw->getSecureLayerVisible()) {
-        ALOGW("FB is protected: PERMISSION_DENIED");
-        return PERMISSION_DENIED;
-    }
-
-    if ((reqWidth > hw_w) || (reqHeight > hw_h)) {
-        ALOGE("size mismatch (%d, %d) > (%d, %d)",
-                reqWidth, reqHeight, hw_w, hw_h);
-        return BAD_VALUE;
-    }
-
     reqWidth  = (!reqWidth)  ? hw_w : reqWidth;
     reqHeight = (!reqHeight) ? hw_h : reqHeight;
 
-    GLuint tname;
-    glGenRenderbuffersOES(1, &tname);
-    glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
-    glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, reqWidth, reqHeight);
-
-    // create a FBO
-    GLuint name;
-    glGenFramebuffersOES(1, &name);
-    glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
-    glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES,
-            GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname);
-
-    GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
+    // create a surface (because we're a producer, and we need to
+    // dequeue/queue a buffer)
+    sp<Surface> sur = new Surface(producer);
+    ANativeWindow* window = sur.get();
 
     status_t result = NO_ERROR;
-    if (status == GL_FRAMEBUFFER_COMPLETE_OES) {
-
-        renderScreenImplLocked(hw, reqWidth, reqHeight, minLayerZ, maxLayerZ, true);
-
-        // Below we render the screenshot into the
-        // CpuConsumer using glReadPixels from our FBO.
-        // Some older drivers don't support the GL->CPU path so we
-        // have to wrap it with a CPU->CPU path, which is what
-        // glReadPixels essentially is.
-
-        sp<Surface> sur = new Surface(producer);
-        ANativeWindow* window = sur.get();
-
-        if (native_window_api_connect(window, NATIVE_WINDOW_API_CPU) == NO_ERROR) {
-            int err = 0;
-            err = native_window_set_buffers_dimensions(window, reqWidth, reqHeight);
-            err |= native_window_set_buffers_format(window, HAL_PIXEL_FORMAT_RGBA_8888);
-            err |= native_window_set_usage(window,
-                    GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
-
-            if (err == NO_ERROR) {
-                ANativeWindowBuffer* buffer;
-                if (native_window_dequeue_buffer_and_wait(window,  &buffer) == NO_ERROR) {
-                    sp<GraphicBuffer> buf = static_cast<GraphicBuffer*>(buffer);
-                    void* vaddr;
-                    if (buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, &vaddr) == NO_ERROR) {
-                        glReadPixels(0, 0, buffer->stride, reqHeight,
-                                GL_RGBA, GL_UNSIGNED_BYTE, vaddr);
-                        buf->unlock();
-                    }
-                    window->queueBuffer(window, buffer, -1);
-                }
-            }
-            native_window_api_disconnect(window, NATIVE_WINDOW_API_CPU);
+    if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) == NO_ERROR) {
+        uint32_t usage = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN;
+        if (!useReadPixels) {
+            usage = GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE;
         }
 
-    } else {
-        ALOGE("got GL_FRAMEBUFFER_COMPLETE_OES while taking screenshot");
-        result = INVALID_OPERATION;
+        int err = 0;
+        err = native_window_set_buffers_dimensions(window, reqWidth, reqHeight);
+        err |= native_window_set_buffers_format(window, HAL_PIXEL_FORMAT_RGBA_8888);
+        err |= native_window_set_usage(window, usage);
+
+        if (err == NO_ERROR) {
+            ANativeWindowBuffer* buffer;
+            /* TODO: Once we have the sync framework everywhere this can use
+             * server-side waits on the fence that dequeueBuffer returns.
+             */
+            result = native_window_dequeue_buffer_and_wait(window,  &buffer);
+            if (result == NO_ERROR) {
+                // create an EGLImage from the buffer so we can later
+                // turn it into a texture
+                EGLImageKHR image = eglCreateImageKHR(mEGLDisplay, EGL_NO_CONTEXT,
+                        EGL_NATIVE_BUFFER_ANDROID, buffer, NULL);
+                if (image != EGL_NO_IMAGE_KHR) {
+                    GLuint tname, name;
+                    if (!useReadPixels) {
+                        // turn our EGLImage into a texture
+                        glGenTextures(1, &tname);
+                        glBindTexture(GL_TEXTURE_2D, tname);
+                        glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
+                        // create a Framebuffer Object to render into
+                        glGenFramebuffersOES(1, &name);
+                        glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
+                        glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES,
+                                GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0);
+                    } else {
+                        // since we're going to use glReadPixels() anyways,
+                        // use an intermediate renderbuffer instead
+                        glGenRenderbuffersOES(1, &tname);
+                        glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
+                        glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, reqWidth, reqHeight);
+                        // create a FBO to render into
+                        glGenFramebuffersOES(1, &name);
+                        glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
+                        glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES,
+                                GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname);
+                    }
+
+                    GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
+                    if (status == GL_FRAMEBUFFER_COMPLETE_OES) {
+                        // this will in fact render into our dequeued buffer
+                        // via an FBO, which means we didn't have to create
+                        // an EGLSurface and therefore we're not
+                        // dependent on the context's EGLConfig.
+                        renderScreenImplLocked(hw, reqWidth, reqHeight,
+                                minLayerZ, maxLayerZ, true);
+
+                        if (useReadPixels) {
+                            sp<GraphicBuffer> buf = static_cast<GraphicBuffer*>(buffer);
+                            void* vaddr;
+                            if (buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, &vaddr) == NO_ERROR) {
+                                glReadPixels(0, 0, buffer->stride, reqHeight,
+                                        GL_RGBA, GL_UNSIGNED_BYTE, vaddr);
+                                checkScreenshot(buf, vaddr, hw, minLayerZ, maxLayerZ);
+                                buf->unlock();
+                            }
+                        }
+                    } else {
+                        ALOGE("got GL_FRAMEBUFFER_COMPLETE_OES error while taking screenshot");
+                        result = INVALID_OPERATION;
+                    }
+
+                    // back to main framebuffer
+                    glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
+                    glDeleteFramebuffersOES(1, &name);
+                    if (!useReadPixels) {
+                        glDeleteTextures(1, &tname);
+                    } else {
+                        glDeleteRenderbuffersOES(1, &tname);
+                    }
+                    // destroy our image
+                    eglDestroyImageKHR(mEGLDisplay, image);
+                } else {
+                    result = BAD_VALUE;
+                }
+                window->queueBuffer(window, buffer, -1);
+            }
+        } else {
+            result = BAD_VALUE;
+        }
+        native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
     }
 
-    // back to main framebuffer
-    glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
-    glDeleteRenderbuffersOES(1, &tname);
-    glDeleteFramebuffersOES(1, &name);
-
-    DisplayDevice::setViewportAndProjection(hw);
+    hw->setViewportAndProjection();
 
     return result;
 }
 
+void SurfaceFlinger::checkScreenshot(const sp<GraphicBuffer>& buf, void const* vaddr,
+        const sp<const DisplayDevice>& hw,
+        uint32_t minLayerZ, uint32_t maxLayerZ) {
+    if (DEBUG_SCREENSHOTS) {
+        for (ssize_t y=0 ; y<buf->height ; y++) {
+            uint32_t const * p = (uint32_t const *)vaddr + y*buf->stride;
+            for (ssize_t x=0 ; x<buf->width ; x++) {
+                if (p[x] != 0xFF000000) return;
+            }
+        }
+        ALOGE("*** we just took a black screenshot ***\n"
+                "requested minz=%d, maxz=%d, layerStack=%d",
+                minLayerZ, maxLayerZ, hw->getLayerStack());
+        const LayerVector& layers( mDrawingState.layersSortedByZ );
+        const size_t count = layers.size();
+        for (size_t i=0 ; i<count ; ++i) {
+            const sp<Layer>& layer(layers[i]);
+            const Layer::State& state(layer->getDrawingState());
+            const bool visible = (state.layerStack == hw->getLayerStack())
+                                && (state.z >= minLayerZ && state.z <= maxLayerZ)
+                                && (layer->isVisible());
+            ALOGE("%c index=%d, name=%s, layerStack=%d, z=%d, visible=%d, flags=%x, alpha=%x",
+                    visible ? '+' : '-',
+                            i, layer->getName().string(), state.layerStack, state.z,
+                            layer->isVisible(), state.flags, state.alpha);
+        }
+    }
+}
+
 // ---------------------------------------------------------------------------
 
 SurfaceFlinger::LayerVector::LayerVector() {
@@ -2982,13 +2895,13 @@
     const sp<Layer>& l(*reinterpret_cast<const sp<Layer>*>(lhs));
     const sp<Layer>& r(*reinterpret_cast<const sp<Layer>*>(rhs));
 
-    uint32_t ls = l->currentState().layerStack;
-    uint32_t rs = r->currentState().layerStack;
+    uint32_t ls = l->getCurrentState().layerStack;
+    uint32_t rs = r->getCurrentState().layerStack;
     if (ls != rs)
         return ls - rs;
 
-    uint32_t lz = l->currentState().z;
-    uint32_t rz = r->currentState().z;
+    uint32_t lz = l->getCurrentState().z;
+    uint32_t rz = r->getCurrentState().z;
     if (lz != rz)
         return lz - rz;
 
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 739099c..21d523b 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -21,7 +21,7 @@
 #include <sys/types.h>
 
 #include <EGL/egl.h>
-#include <GLES/gl.h>
+#include <GLES/gl.h>        // needed for GLuint
 
 #include <cutils/compiler.h>
 
@@ -62,6 +62,7 @@
 class Layer;
 class LayerDim;
 class Surface;
+class RenderEngine;
 
 // ---------------------------------------------------------------------------
 
@@ -79,11 +80,11 @@
                        private HWComposer::EventHandler
 {
 public:
-    static char const* getServiceName() {
+    static char const* getServiceName() ANDROID_API {
         return "SurfaceFlinger";
     }
 
-    SurfaceFlinger();
+    SurfaceFlinger() ANDROID_API;
 
     enum {
         EVENT_VSYNC = HWC_EVENT_VSYNC
@@ -121,6 +122,10 @@
     // TODO: this should be made accessible only to HWComposer
     const Vector< sp<Layer> >& getLayerSortedByZForHwcDisplay(int id);
 
+    RenderEngine& getRenderEngine() const {
+        return *mRenderEngine;
+    }
+
 private:
     friend class Client;
     friend class DisplayEventConnection;
@@ -298,14 +303,8 @@
             const sp<const DisplayDevice>& hw,
             const sp<IGraphicBufferProducer>& producer,
             uint32_t reqWidth, uint32_t reqHeight,
-            uint32_t minLayerZ, uint32_t maxLayerZ);
-
-    status_t captureScreenImplCpuConsumerLocked(
-            const sp<const DisplayDevice>& hw,
-            const sp<IGraphicBufferProducer>& producer,
-            uint32_t reqWidth, uint32_t reqHeight,
-            uint32_t minLayerZ, uint32_t maxLayerZ);
-
+            uint32_t minLayerZ, uint32_t maxLayerZ,
+            bool useReadPixels);
 
     /* ------------------------------------------------------------------------
      * EGL
@@ -313,10 +312,8 @@
     static status_t selectConfigForAttribute(EGLDisplay dpy,
         EGLint const* attrs, EGLint attribute, EGLint value, EGLConfig* outConfig);
     static EGLConfig selectEGLConfig(EGLDisplay disp, EGLint visualId);
-    static EGLContext createGLContext(EGLDisplay disp, EGLConfig config);
-    void initializeGL(EGLDisplay display);
-    uint32_t getMaxTextureSize() const;
-    uint32_t getMaxViewportDims() const;
+    size_t getMaxTextureSize() const;
+    size_t getMaxViewportDims() const;
 
     /* ------------------------------------------------------------------------
      * Display and layer stack management
@@ -372,9 +369,6 @@
     void postFramebuffer();
     void drawWormhole(const sp<const DisplayDevice>& hw,
             const Region& region) const;
-    GLuint getProtectedTexName() const {
-        return mProtectedTexName;
-    }
 
     /* ------------------------------------------------------------------------
      * Display management
@@ -385,14 +379,18 @@
      * Debugging & dumpsys
      */
     void listLayersLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE) const;
+        String8& result) const;
     void dumpStatsLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE) const;
+        String8& result) const;
     void clearStatsLocked(const Vector<String16>& args, size_t& index,
-        String8& result, char* buffer, size_t SIZE);
-    void dumpAllLocked(String8& result, char* buffer, size_t SIZE) const;
+        String8& result);
+    void dumpAllLocked(const Vector<String16>& args, size_t& index,
+        String8& result) const;
     bool startDdmConnection();
     static void appendSfConfigString(String8& result);
+    void checkScreenshot(const sp<GraphicBuffer>& buf, void const* vaddr,
+            const sp<const DisplayDevice>& hw,
+            uint32_t minLayerZ, uint32_t maxLayerZ);
 
     /* ------------------------------------------------------------------------
      * Attributes
@@ -416,12 +414,10 @@
 
     // constant members (no synchronization needed for access)
     HWComposer* mHwc;
-    GLuint mProtectedTexName;
+    RenderEngine* mRenderEngine;
     nsecs_t mBootTime;
     bool mGpuToCpuSupported;
     sp<EventThread> mEventThread;
-    GLint mMaxViewportDims[2];
-    GLint mMaxTextureSize;
     EGLContext mEGLContext;
     EGLConfig mEGLConfig;
     EGLDisplay mEGLDisplay;
diff --git a/services/surfaceflinger/SurfaceFlingerConsumer.cpp b/services/surfaceflinger/SurfaceFlingerConsumer.cpp
index 2869250..b181b60 100644
--- a/services/surfaceflinger/SurfaceFlingerConsumer.cpp
+++ b/services/surfaceflinger/SurfaceFlingerConsumer.cpp
@@ -50,12 +50,14 @@
     // Acquire the next buffer.
     // In asynchronous mode the list is guaranteed to be one buffer
     // deep, while in synchronous mode we use the oldest buffer.
-    err = acquireBufferLocked(&item);
+    err = acquireBufferLocked(&item, computeExpectedPresent());
     if (err != NO_ERROR) {
         if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
             // This variant of updateTexImage does not guarantee that the
             // texture is bound, so no need to call glBindTexture.
             err = NO_ERROR;
+        } else if (err == BufferQueue::PRESENT_LATER) {
+            // return the error, without logging
         } else {
             ALOGE("updateTexImage: acquire failed: %s (%d)",
                 strerror(-err), err);
@@ -69,7 +71,7 @@
     // reject buffers which have the wrong size
     int buf = item.mBuf;
     if (rejecter && rejecter->reject(mSlots[buf].mGraphicBuffer, item)) {
-        releaseBufferLocked(buf, EGL_NO_SYNC_KHR);
+        releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer, EGL_NO_SYNC_KHR);
         return NO_ERROR;
     }
 
@@ -99,6 +101,48 @@
     return bindTextureImageLocked();
 }
 
+// We need to determine the time when a buffer acquired now will be
+// displayed.  This can be calculated:
+//   time when previous buffer's actual-present fence was signaled
+//    + current display refresh rate * HWC latency
+//    + a little extra padding
+//
+// Buffer producers are expected to set their desired presentation time
+// based on choreographer time stamps, which (coming from vsync events)
+// will be slightly later then the actual-present timing.  If we get a
+// desired-present time that is unintentionally a hair after the next
+// vsync, we'll hold the frame when we really want to display it.  We
+// want to use an expected-presentation time that is slightly late to
+// avoid this sort of edge case.
+nsecs_t SurfaceFlingerConsumer::computeExpectedPresent()
+{
+    // Don't yet have an easy way to get actual buffer flip time for
+    // the specific display, so use the current time.  This is typically
+    // 1.3ms past the vsync event time.
+    const nsecs_t prevVsync = systemTime(CLOCK_MONOTONIC);
+
+    // Given a SurfaceFlinger reference, and information about what display
+    // we're destined for, we could query the HWC for the refresh rate.  This
+    // could change over time, e.g. we could switch to 24fps for a movie.
+    // For now, assume 60fps.
+    //const nsecs_t vsyncPeriod =
+    //        getHwComposer().getRefreshPeriod(HWC_DISPLAY_PRIMARY);
+    const nsecs_t vsyncPeriod = 16700000;
+
+    // The HWC doesn't currently have a way to report additional latency.
+    // Assume that whatever we submit now will appear on the next flip,
+    // i.e. 1 frame of latency w.r.t. the previous flip.
+    const uint32_t hwcLatency = 1;
+
+    // A little extra padding to compensate for slack between actual vsync
+    // time and vsync event receipt.  Currently not needed since we're
+    // using "now" instead of a vsync time.
+    const nsecs_t extraPadding = 0;
+
+    // Total it up.
+    return prevVsync + hwcLatency * vsyncPeriod + extraPadding;
+}
+
 // ---------------------------------------------------------------------------
 }; // namespace android
 
diff --git a/services/surfaceflinger/SurfaceFlingerConsumer.h b/services/surfaceflinger/SurfaceFlingerConsumer.h
index 22eec81..5de6d12 100644
--- a/services/surfaceflinger/SurfaceFlingerConsumer.h
+++ b/services/surfaceflinger/SurfaceFlingerConsumer.h
@@ -27,11 +27,10 @@
  */
 class SurfaceFlingerConsumer : public GLConsumer {
 public:
-    SurfaceFlingerConsumer(GLuint tex, bool allowSynchronousMode = true,
-            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES, bool useFenceSync = true,
-            const sp<BufferQueue> &bufferQueue = 0)
-        : GLConsumer(tex, allowSynchronousMode, texTarget, useFenceSync,
-            bufferQueue)
+    SurfaceFlingerConsumer(const sp<BufferQueue>& bq, GLuint tex,
+            GLenum texTarget = GL_TEXTURE_EXTERNAL_OES,
+            bool useFenceSync = true)
+        : GLConsumer(bq, tex, texTarget, useFenceSync)
     {}
 
     class BufferRejecter {
@@ -51,6 +50,9 @@
 
     // See GLConsumer::bindTextureImageLocked().
     status_t bindTextureImage();
+
+private:
+    nsecs_t computeExpectedPresent();
 };
 
 // ----------------------------------------------------------------------------