diff --git a/opengl/tests/hwc/Android.mk b/opengl/tests/hwc/Android.mk
index 743dbf1..93a5545 100644
--- a/opengl/tests/hwc/Android.mk
+++ b/opengl/tests/hwc/Android.mk
@@ -1,7 +1,40 @@
+# 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.
+
 LOCAL_PATH:= $(call my-dir)
 
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES:= hwc_stress.cpp
+LOCAL_MODULE_TAGS := tests
+LOCAL_MODULE:= libhwcTest
+LOCAL_SRC_FILES:= hwcTestLib.cpp
+LOCAL_C_INCLUDES += system/extras/tests/include \
+    bionic \
+    bionic/libstdc++/include \
+    external/stlport/stlport \
+    frameworks/base/opengl/tests \
+    frameworks/base/opengl/tests/include \
+
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+
+LOCAL_SHARED_LIBRARIES += libcutils libutils libstlport
+LOCAL_STATIC_LIBRARIES += libglTest
+LOCAL_PRELINK_MODULE := false
+
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES:= hwcStress.cpp
 
 LOCAL_SHARED_LIBRARIES := \
     libcutils \
@@ -12,12 +45,18 @@
 
 LOCAL_STATIC_LIBRARIES := \
     libtestUtil \
+    libglTest \
+    libhwcTest \
 
 LOCAL_C_INCLUDES += \
     system/extras/tests/include \
     hardware/libhardware/include \
+    frameworks/base/opengl/tests \
+    frameworks/base/opengl/tests/include \
 
-LOCAL_MODULE:= hwc_stress
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+
+LOCAL_MODULE:= hwcStress
 LOCAL_MODULE_PATH := $(TARGET_OUT_DATA)/nativestresstest
 
 LOCAL_MODULE_TAGS := tests
@@ -25,3 +64,63 @@
 LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
 
 include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES:= hwcRects.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libEGL \
+    libGLESv2 \
+    libui \
+    libhardware \
+
+LOCAL_STATIC_LIBRARIES := \
+    libtestUtil \
+    libglTest \
+    libhwcTest \
+
+LOCAL_C_INCLUDES += \
+    system/extras/tests/include \
+    hardware/libhardware/include \
+    frameworks/base/opengl/tests \
+    frameworks/base/opengl/tests/include \
+
+LOCAL_MODULE:= hwcRects
+LOCAL_MODULE_PATH := $(TARGET_OUT_DATA)/nativeutil
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES:= hwcColorEquiv.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libEGL \
+    libGLESv2 \
+    libui \
+    libhardware \
+
+LOCAL_STATIC_LIBRARIES := \
+    libtestUtil \
+    libglTest \
+    libhwcTest \
+
+LOCAL_C_INCLUDES += \
+    system/extras/tests/include \
+    hardware/libhardware/include \
+    frameworks/base/opengl/tests \
+    frameworks/base/opengl/tests/include \
+
+LOCAL_MODULE:= hwcColorEquiv
+LOCAL_MODULE_PATH := $(TARGET_OUT_DATA)/nativeutil
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+
+include $(BUILD_NATIVE_TEST)
diff --git a/opengl/tests/hwc/hwcColorEquiv.cpp b/opengl/tests/hwc/hwcColorEquiv.cpp
new file mode 100644
index 0000000..4a87a05
--- /dev/null
+++ b/opengl/tests/hwc/hwcColorEquiv.cpp
@@ -0,0 +1,436 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Hardware Composer Color Equivalence
+ *
+ * Synopsis
+ *   hwc_colorequiv [options] eFmt
+ *
+ *     options:
+         -v - verbose
+ *       -s <0.##, 0.##, 0.##> - Start color (default: <0.0, 0.0, 0.0>
+ *       -e <0.##, 0.##, 0.##> - Ending color (default: <1.0, 1.0, 1.0>
+ *       -r fmt - reference graphic format
+ *       -D #.## - End of test delay
+ *
+ *     graphic formats:
+ *       RGBA8888 (reference frame default)
+ *       RGBX8888
+ *       RGB888
+ *       RGB565
+ *       BGRA8888
+ *       RGBA5551
+ *       RGBA4444
+ *       YV12
+ *
+ * Description
+ *   Renders a horizontal blend in two frames.  The first frame is rendered
+ *   in the upper third of the display and is called the reference frame.
+ *   The second frame is displayed in the middle third and is called the
+ *   equivalence frame.  The primary purpose of this utility is to verify
+ *   that the colors produced in the reference and equivalence frames are
+ *   the same.  The colors are the same when the colors are the same
+ *   vertically between the reference and equivalence frames.
+ *
+ *   By default the reference frame is rendered through the use of the
+ *   RGBA8888 graphic format.  The -r option can be used to specify a
+ *   non-default reference frame graphic format.  The graphic format of
+ *   the equivalence frame is determined by a single required positional
+ *   parameter.  Intentionally there is no default for the graphic format
+ *   of the equivalence frame.
+ *
+ *   The horizontal blend in the reference frame is produced from a linear
+ *   interpolation from a start color (default: <0.0, 0.0, 0.0> on the left
+ *   side to an end color (default <1.0, 1.0, 1.0> on the right side.  Where
+ *   possible the equivalence frame is rendered with the equivalent color
+ *   from the reference frame.  A color of black is used in the equivalence
+ *   frame for cases where an equivalent color does not exist.
+ */
+
+#include <algorithm>
+#include <assert.h>
+#include <cerrno>
+#include <cmath>
+#include <cstdlib>
+#include <ctime>
+#include <libgen.h>
+#include <sched.h>
+#include <sstream>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <vector>
+
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/EGLUtils.h>
+
+#define LOG_TAG "hwcColorEquivTest"
+#include <utils/Log.h>
+#include <testUtil.h>
+
+#include <hardware/hwcomposer.h>
+
+#include "hwcTestLib.h"
+
+using namespace std;
+using namespace android;
+
+// Defaults for command-line options
+const bool defaultVerbose = false;
+const ColorFract defaultStartColor(0.0, 0.0, 0.0);
+const ColorFract defaultEndColor(1.0, 1.0, 1.0);
+const char *defaultRefFormat = "RGBA8888";
+const float defaultEndDelay = 2.0; // Default delay after rendering graphics
+
+// Defines
+#define MAXSTR               100
+#define MAXCMD               200
+#define BITSPERBYTE            8 // TODO: Obtain from <values.h>, once
+                                 // it has been added
+
+#define CMD_STOP_FRAMEWORK   "stop 2>&1"
+#define CMD_START_FRAMEWORK  "start 2>&1"
+
+// Macros
+#define NUMA(a) (sizeof(a) / sizeof(a [0])) // Num elements in an array
+#define MEMCLR(addr, size) do { \
+        memset((addr), 0, (size)); \
+    } while (0)
+
+// Globals
+static const int texUsage = GraphicBuffer::USAGE_HW_TEXTURE |
+        GraphicBuffer::USAGE_SW_WRITE_RARELY;
+static hwc_composer_device_t *hwcDevice;
+static EGLDisplay dpy;
+static EGLSurface surface;
+static EGLint width, height;
+
+// Functions prototypes
+void init(void);
+void printSyntax(const char *cmd);
+
+// Command-line option settings
+static bool verbose = defaultVerbose;
+static ColorFract startRefColor = defaultStartColor;
+static ColorFract endRefColor = defaultEndColor;
+static float endDelay = defaultEndDelay;
+static const struct hwcTestGraphicFormat *refFormat
+    = hwcTestGraphicFormatLookup(defaultRefFormat);
+static const struct hwcTestGraphicFormat *equivFormat;
+
+/*
+ * Main
+ *
+ * Performs the following high-level sequence of operations:
+ *
+ *   1. Command-line parsing
+ *
+ *   2. Stop framework
+ *
+ *   3. Initialization
+ *
+ *   4. Create Hardware Composer description of reference and equivalence frames
+ *
+ *   5. Have Hardware Composer render the reference and equivalence frames
+ *
+ *   6. Delay for amount of time given by endDelay
+ *
+ *   7. Start framework
+ */
+int
+main(int argc, char *argv[])
+{
+    int rv, opt;
+    bool error;
+    char *chptr;
+    unsigned int pass;
+    char cmd[MAXCMD];
+    string str;
+
+    testSetLogCatTag(LOG_TAG);
+
+    assert(refFormat != NULL);
+
+    // Parse command line arguments
+    while ((opt = getopt(argc, argv, "vs:e:r:D:?h")) != -1) {
+        switch (opt) {
+          case 'D': // End of test delay
+                    // Delay between completion of final pass and restart
+                    // of framework
+            endDelay = strtod(optarg, &chptr);
+            if ((*chptr != '\0') || (endDelay < 0.0)) {
+                testPrintE("Invalid command-line specified end of test delay "
+                           "of: %s", optarg);
+                exit(1);
+            }
+            break;
+
+          case 's': // Starting reference color
+            str = optarg;
+            while (optind < argc) {
+                if (*argv[optind] == '-') { break; }
+                char endChar = (str.length() > 1) ? str[str.length() - 1] : 0;
+                if ((endChar == '>') || (endChar == ']')) { break; }
+                str += " " + string(argv[optind++]);
+            }
+            {
+                istringstream in(str);
+                startRefColor = hwcTestParseColor(in, error);
+                // Any parse error or characters not used by parser
+                if (error
+                    || (((unsigned int) in.tellg() != in.str().length())
+                        && (in.tellg() != (streampos) -1))) {
+                    testPrintE("Invalid command-line specified start "
+                               "reference color of: %s", str.c_str());
+                    exit(2);
+                }
+            }
+            break;
+
+          case 'e': // Ending reference color
+            str = optarg;
+            while (optind < argc) {
+                if (*argv[optind] == '-') { break; }
+                char endChar = (str.length() > 1) ? str[str.length() - 1] : 0;
+                if ((endChar == '>') || (endChar == ']')) { break; }
+                str += " " + string(argv[optind++]);
+            }
+            {
+                istringstream in(str);
+                endRefColor = hwcTestParseColor(in, error);
+                // Any parse error or characters not used by parser
+                if (error
+                    || (((unsigned int) in.tellg() != in.str().length())
+                        && (in.tellg() != (streampos) -1))) {
+                    testPrintE("Invalid command-line specified end "
+                               "reference color of: %s", str.c_str());
+                    exit(3);
+                }
+            }
+            break;
+
+          case 'r': // Reference graphic format
+            refFormat = hwcTestGraphicFormatLookup(optarg);
+            if (refFormat == NULL) {
+                testPrintE("Unkown command-line specified reference graphic "
+                           "format of: %s", optarg);
+                printSyntax(basename(argv[0]));
+                exit(4);
+            }
+            break;
+
+          case 'v': // Verbose
+            verbose = true;
+            break;
+
+          case 'h': // Help
+          case '?':
+          default:
+            printSyntax(basename(argv[0]));
+            exit(((optopt == 0) || (optopt == '?')) ? 0 : 5);
+        }
+    }
+
+    // Expect a single positional parameter, which specifies the
+    // equivalence graphic format.
+    if (argc != (optind + 1)) {
+        testPrintE("Expected a single command-line postional parameter");
+        printSyntax(basename(argv[0]));
+        exit(6);
+    }
+    equivFormat = hwcTestGraphicFormatLookup(argv[optind]);
+    if (equivFormat == NULL) {
+        testPrintE("Unkown command-line specified equivalence graphic "
+                   "format of: %s", argv[optind]);
+        printSyntax(basename(argv[0]));
+        exit(7);
+    }
+
+    testPrintI("refFormat: %u %s", refFormat->format, refFormat->desc);
+    testPrintI("equivFormat: %u %s", equivFormat->format, equivFormat->desc);
+    testPrintI("startRefColor: %s", ((string) startRefColor).c_str());
+    testPrintI("endRefColor: %s", ((string) endRefColor).c_str());
+    testPrintI("endDelay: %f", endDelay);
+
+    // Stop framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_STOP_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_STOP_FRAMEWORK);
+        exit(8);
+    }
+    testExecCmd(cmd);
+    testDelay(1.0); // TODO - needs means to query whether asynchronous stop
+                    // framework operation has completed.  For now, just wait
+                    // a long time.
+
+    init();
+
+    // Use the upper third of the display for the reference frame and
+    // the middle third for the equivalence frame.
+    unsigned int refHeight = height / 3;
+    unsigned int refPosY = 0; // Reference frame Y position
+    unsigned int refPosX = 0; // Reference frame X position
+    unsigned int refWidth = width - refPosX;
+    if ((refWidth & refFormat->wMod) != 0) {
+        refWidth += refFormat->wMod - (refWidth % refFormat->wMod);
+    }
+    unsigned int equivHeight = height / 3;
+    unsigned int equivPosY = refHeight; // Equivalence frame Y position
+    unsigned int equivPosX = 0;         // Equivalence frame X position
+    unsigned int equivWidth = width - equivPosX;
+    if ((equivWidth & equivFormat->wMod) != 0) {
+        equivWidth += equivFormat->wMod - (equivWidth % equivFormat->wMod);
+    }
+
+    // Create reference and equivalence graphic buffers
+    const unsigned int numFrames = 2;
+    sp<GraphicBuffer> refFrame;
+    refFrame = new GraphicBuffer(refWidth, refHeight,
+                                 refFormat->format, texUsage);
+    if ((rv = refFrame->initCheck()) != NO_ERROR) {
+        testPrintE("refFrame initCheck failed, rv: %i", rv);
+        testPrintE("  width %u height: %u format: %u %s", refWidth, refHeight,
+                   refFormat->format,
+                   hwcTestGraphicFormat2str(refFormat->format));
+        exit(9);
+    }
+    testPrintI("refFrame width: %u height: %u format: %u %s",
+               refWidth, refHeight, refFormat->format,
+               hwcTestGraphicFormat2str(refFormat->format));
+
+    sp<GraphicBuffer> equivFrame;
+    equivFrame = new GraphicBuffer(equivWidth, equivHeight,
+                                   equivFormat->format, texUsage);
+    if ((rv = refFrame->initCheck()) != NO_ERROR) {
+        testPrintE("refFrame initCheck failed, rv: %i", rv);
+        testPrintE("  width %u height: %u format: %u %s", refWidth, refHeight,
+                   refFormat->format,
+                   hwcTestGraphicFormat2str(refFormat->format));
+        exit(10);
+    }
+    testPrintI("equivFrame width: %u height: %u format: %u %s",
+               equivWidth, equivHeight, equivFormat->format,
+               hwcTestGraphicFormat2str(equivFormat->format));
+
+    // Fill the frames with a horizontal blend
+    hwcTestFillColorHBlend(refFrame.get(), refFormat->format,
+                           startRefColor, endRefColor);
+    hwcTestFillColorHBlend(equivFrame.get(), refFormat->format,
+                           startRefColor, endRefColor);
+
+    hwc_layer_list_t *list;
+    size_t size = sizeof(hwc_layer_list) + numFrames * sizeof(hwc_layer_t);
+    if ((list = (hwc_layer_list_t *) calloc(1, size)) == NULL) {
+        testPrintE("Allocate list failed");
+        exit(11);
+    }
+    list->flags = HWC_GEOMETRY_CHANGED;
+    list->numHwLayers = numFrames;
+
+    hwc_layer_t *layer = &list->hwLayers[0];
+    layer->handle = refFrame->handle;
+    layer->blending = HWC_BLENDING_NONE;
+    layer->sourceCrop.left = 0;
+    layer->sourceCrop.top = 0;
+    layer->sourceCrop.right = width;
+    layer->sourceCrop.bottom = refHeight;
+    layer->displayFrame.left = 0;
+    layer->displayFrame.top = 0;
+    layer->displayFrame.right = width;
+    layer->displayFrame.bottom = refHeight;
+    layer->visibleRegionScreen.numRects = 1;
+    layer->visibleRegionScreen.rects = &layer->displayFrame;
+
+    layer++;
+    layer->handle = equivFrame->handle;
+    layer->blending = HWC_BLENDING_NONE;
+    layer->sourceCrop.left = 0;
+    layer->sourceCrop.top = 0;
+    layer->sourceCrop.right = width;
+    layer->sourceCrop.bottom = equivHeight;
+    layer->displayFrame.left = 0;
+    layer->displayFrame.top = refHeight;
+    layer->displayFrame.right = width;
+    layer->displayFrame.bottom = layer->displayFrame.top + equivHeight;
+    layer->visibleRegionScreen.numRects = 1;
+    layer->visibleRegionScreen.rects = &layer->displayFrame;
+
+    // Perform prepare operation
+    if (verbose) { testPrintI("Prepare:"); hwcTestDisplayList(list); }
+    hwcDevice->prepare(hwcDevice, list);
+    if (verbose) {
+        testPrintI("Post Prepare:");
+        hwcTestDisplayListPrepareModifiable(list);
+    }
+
+    // Turn off the geometry changed flag
+    list->flags &= ~HWC_GEOMETRY_CHANGED;
+
+    if (verbose) {hwcTestDisplayListHandles(list); }
+    hwcDevice->set(hwcDevice, dpy, surface, list);
+
+    testDelay(endDelay);
+
+    // Start framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_START_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_START_FRAMEWORK);
+        exit(12);
+    }
+    testExecCmd(cmd);
+
+    return 0;
+}
+
+void init(void)
+{
+    // Seed pseudo random number generator
+    // Seeding causes fill horizontal blend to fill the pad area with
+    // a deterministic set of values.
+    srand48(0);
+
+    hwcTestInitDisplay(verbose, &dpy, &surface, &width, &height);
+
+    hwcTestOpenHwc(&hwcDevice);
+}
+
+void printSyntax(const char *cmd)
+{
+    testPrintE("  %s [options] graphicFormat", cmd);
+    testPrintE("    options:");
+    testPrintE("      -s <0.##, 0.##, 0.##> - Starting reference color");
+    testPrintE("      -e <0.##, 0.##, 0.##> - Ending reference color");
+    testPrintE("      -r format - Reference graphic format");
+    testPrintE("      -D #.## - End of test delay");
+    testPrintE("      -v Verbose");
+    testPrintE("");
+    testPrintE("    graphic formats:");
+    for (unsigned int n1 = 0; n1 < NUMA(hwcTestGraphicFormat); n1++) {
+        testPrintE("      %s", hwcTestGraphicFormat[n1].desc);
+    }
+}
diff --git a/opengl/tests/hwc/hwcRects.cpp b/opengl/tests/hwc/hwcRects.cpp
new file mode 100644
index 0000000..c93124e
--- /dev/null
+++ b/opengl/tests/hwc/hwcRects.cpp
@@ -0,0 +1,575 @@
+/*
+ * 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.
+ */
+
+/*
+ * Hardware Composer Rectangles
+ *
+ * Synopsis
+ *   hwcRects [options] (graphicFormat displayFrame [attributes],)...
+ *     options:
+ *       -D #.## - End of test delay
+ *       -v Verbose");
+ *
+ *      graphic formats:
+ *        RGBA8888 (reference frame default)
+ *        RGBX8888
+ *        RGB888
+ *        RGB565
+ *        BGRA8888
+ *        RGBA5551
+ *        RGBA4444
+ *        YV12
+ *
+ *      displayFrame
+ *        [left, top, right, bottom]
+ *
+ *      attributes:
+ *        transform: none | fliph | flipv | rot90 | rot180 | rot270
+ *        blend: none | premult | coverage
+ *        color: [0.##, 0.##, 0.##]
+ *        alpha: 0.##
+ *        sourceDim: [width, height]
+ *        sourceCrop: [left, top, right, bottom]
+ *
+ *      Example:
+ *        # White YV12 rectangle, with overlapping turquoise
+ *        #  RGBA8888 rectangle at 30%% (alpha: 0.7) transparency
+ *        hwcRects -v -D 30.0 \
+ *          YV12 [50, 80, 200, 300] transform: none \
+ *            color: [1.0, 0.5, 0.5], \
+ *          RGBA8888 [100, 150, 300, 400] blend: coverage \
+ *            color: [0.251, 0.878, 0.816] alpha: 0.7 \
+ *            sourceDim: [50, 60] sourceCrop: [5, 8, 12, 15]
+ *
+ * Description
+ *   Constructs a Hardware Composer (HWC) list of frames from
+ *   command-line specified parameters.  Then sends it to the HWC
+ *   be rendered.  The intended purpose of this tool is as a means to
+ *   reproduce and succinctly specify an observed HWC operation, with
+ *   no need to modify/compile a program.
+ *
+ *   The command-line syntax consists of a few standard command-line
+ *   options and then a description of one or more frames.  The frame
+ *   descriptions are separated from one another via a comma.  The
+ *   beginning of a frame description requires the specification
+ *   of the graphic format and then the display frame rectangle where
+ *   the frame will be displayed.  The display frame rectangle is
+ *   specified as follows, with the right and bottom coordinates being
+ *   exclusive values:
+ *
+ *     [left, top, right, bottom]
+ *    
+ *   After these two required parameters each frame description can
+ *   specify 1 or more optional attributes.  The name of each optional
+ *   attribute is preceded by a colon.  The current implementation
+ *   then requires white space after the colon and then the value of
+ *   the attribute is specified.  See the synopsis section above for
+ *   a list of attributes and the format of their expected value.
+ */
+
+#include <algorithm>
+#include <assert.h>
+#include <cerrno>
+#include <cmath>
+#include <cstdlib>
+#include <ctime>
+#include <istream>
+#include <libgen.h>
+#include <list>
+#include <sched.h>
+#include <sstream>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/EGLUtils.h>
+
+#define LOG_TAG "hwcColorEquivTest"
+#include <utils/Log.h>
+#include <testUtil.h>
+
+#include <hardware/hwcomposer.h>
+
+#include <glTestLib.h>
+#include <hwc/hwcTestLib.h>
+
+using namespace std;
+using namespace android;
+
+// Defaults
+const bool defaultVerbose = false;
+const float defaultEndDelay = 2.0; // Default delay after rendering graphics
+
+const uint32_t   defaultFormat = HAL_PIXEL_FORMAT_RGBA_8888;
+const int32_t    defaultTransform = 0;
+const uint32_t   defaultBlend = HWC_BLENDING_NONE;
+const ColorFract defaultColor(0.5, 0.5, 0.5);
+const float      defaultAlpha = 1.0; // Opaque
+const HwcTestDim defaultSourceDim(1, 1);
+const struct hwc_rect defaultSourceCrop = {0, 0, 1, 1};
+const struct hwc_rect defaultDisplayFrame = {0, 0, 100, 100};
+
+// Defines
+#define MAXCMD               200
+#define CMD_STOP_FRAMEWORK   "stop 2>&1"
+#define CMD_START_FRAMEWORK  "start 2>&1"
+
+// Macros
+#define NUMA(a) (sizeof(a) / sizeof(a [0])) // Num elements in an array
+
+// Local types
+class Rectangle {
+public:
+    Rectangle() : format(defaultFormat), transform(defaultTransform),
+                  blend(defaultBlend), color(defaultColor),
+                  alpha(defaultAlpha), sourceDim(defaultSourceDim),
+                  sourceCrop(defaultSourceCrop),
+                  displayFrame(defaultDisplayFrame) {};
+
+    uint32_t     format;
+    uint32_t     transform;
+    int32_t      blend;
+    ColorFract   color;
+    float        alpha;
+    HwcTestDim   sourceDim;
+    struct hwc_rect   sourceCrop;
+    struct hwc_rect   displayFrame;
+
+    sp<GraphicBuffer> texture;
+};
+
+// Globals
+list<Rectangle> rectangle;
+static const int texUsage = GraphicBuffer::USAGE_HW_TEXTURE |
+        GraphicBuffer::USAGE_SW_WRITE_RARELY;
+static hwc_composer_device_t *hwcDevice;
+static EGLDisplay dpy;
+static EGLSurface surface;
+static EGLint width, height;
+
+// Function prototypes
+static Rectangle parseRect(string rectStr);
+void init(void);
+void printSyntax(const char *cmd);
+
+// Command-line option settings
+static bool verbose = defaultVerbose;
+static float endDelay = defaultEndDelay;
+
+/*
+ * Main
+ *
+ * Performs the following high-level sequence of operations:
+ *
+ *   1. Parse command-line options
+ *
+ *   2. Stop framework
+ *
+ *   3. Initialization
+ *
+ *   4. Parse frame descriptions
+ *
+ *   5. Create HWC list from frame descriptions
+ *
+ *   6. Have HWC render the list description of the frames
+ *
+ *   7. Delay for amount of time given by endDelay
+ *
+ *   8. Start framework
+ */
+int
+main(int argc, char *argv[])
+{
+    int     rv, opt;
+    char   *chptr;
+    bool    error;
+    string  str;
+    char cmd[MAXCMD];
+
+    // Parse command line arguments
+    while ((opt = getopt(argc, argv, "D:v?h")) != -1) {
+        switch (opt) {
+          case 'D': // End of test delay
+            endDelay = strtod(optarg, &chptr);
+            if ((*chptr != '\0') || (endDelay < 0.0)) {
+                testPrintE("Invalid command-line specified end of test delay "
+                           "of: %s", optarg);
+                exit(1);
+            }
+            break;
+
+          case 'v': // Verbose
+            verbose = true;
+            break;
+
+          case 'h': // Help
+          case '?':
+          default:
+            printSyntax(basename(argv[0]));
+            exit(((optopt == 0) || (optopt == '?')) ? 0 : 2);
+        }
+    }
+
+    // Stop framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_STOP_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_STOP_FRAMEWORK);
+        exit(3);
+    }
+    testExecCmd(cmd);
+    testDelay(1.0); // TODO - needs means to query whether asyncronous stop
+                    // framework operation has completed.  For now, just wait
+                    // a long time.
+
+    init();
+
+    // Parse rectangle descriptions
+    int numOpen = 0; // Current number of unmatched <[
+    string rectDesc(""); // String description of a single rectangle
+    while (optind < argc) {
+        string argNext = string(argv[optind++]);
+
+        if (rectDesc.length()) { rectDesc += ' '; }
+        rectDesc += argNext;
+
+        // Count number of opening <[ and matching >]
+        // At this point not worried about an opening character being
+        // matched by it's corresponding closing character.  For example,
+        // "<1.0, 2.0]" is incorrect because the opening < should be matched
+        // with a closing >, instead of the closing ].  Such errors are
+        // detected when the actual value is parsed.
+        for (unsigned int n1 = 0; n1 < argNext.length(); n1++) {
+            switch(argNext[n1]) {
+              case '[':
+              case '<':
+                numOpen++;
+                break;
+
+              case ']':
+              case '>':
+                numOpen--;
+                break;
+            }
+
+            // Error anytime there is more closing then opening characters
+            if (numOpen < 0) {
+                testPrintI("Mismatched number of opening <[ with "
+                           "closing >] in: %s", rectDesc.c_str());
+                exit(4);
+            }
+        }
+
+        // Description of a rectangle is complete when all opening
+        // <[ are closed with >] and the string ends with a comma or
+        // there are no more args.
+        if ((numOpen == 0) && rectDesc.length()
+            && ((rectDesc[rectDesc.length() - 1] == ',')
+                || (optind == argc))) {
+            // Remove trailing comma if it is present
+            if (rectDesc[rectDesc.length() - 1] == ',') {
+                rectDesc.erase(rectDesc.length() - 1);
+            }
+
+            // Parse string description of rectangle
+            Rectangle rect = parseRect(rectDesc);
+
+            // Add to the list of rectangles
+            rectangle.push_back(rect);
+
+            // Prepare for description of another rectangle
+            rectDesc = string("");
+        }
+    }
+
+    // Create list of frames
+    hwc_layer_list_t *list;
+    list = hwcTestCreateLayerList(rectangle.size());
+    if (list == NULL) {
+        testPrintE("hwcTestCreateLayerList failed");
+        exit(5);
+    }
+
+    hwc_layer_t *layer = &list->hwLayers[0];
+    for (std::list<Rectangle>::iterator it = rectangle.begin();
+         it != rectangle.end(); ++it, ++layer) {
+        layer->handle = it->texture->handle;
+        layer->blending = it->blend;
+        layer->transform = it->transform;
+        layer->sourceCrop = it->sourceCrop;
+        layer->displayFrame = it->displayFrame;
+
+        layer->visibleRegionScreen.numRects = 1;
+        layer->visibleRegionScreen.rects = &layer->displayFrame;
+    }
+
+    // Perform prepare operation
+    if (verbose) { testPrintI("Prepare:"); hwcTestDisplayList(list); }
+    hwcDevice->prepare(hwcDevice, list);
+    if (verbose) {
+        testPrintI("Post Prepare:");
+        hwcTestDisplayListPrepareModifiable(list);
+    }
+
+    // Turn off the geometry changed flag
+    list->flags &= ~HWC_GEOMETRY_CHANGED;
+
+    // Perform the set operation(s)
+    if (verbose) {testPrintI("Set:"); }
+    if (verbose) { hwcTestDisplayListHandles(list); }
+    hwcDevice->set(hwcDevice, dpy, surface, list);
+
+    testDelay(endDelay);
+
+    // Start framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_START_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_START_FRAMEWORK);
+        exit(6);
+    }
+    testExecCmd(cmd);
+
+    return 0;
+}
+
+// Parse string description of rectangle and add it to list of rectangles
+// to be rendered.
+static Rectangle parseRect(string rectStr)
+{
+    int rv;
+    string str;
+    bool   error;
+    istringstream in(rectStr);
+    const struct hwcTestGraphicFormat *format;
+    Rectangle rect;
+    struct hwc_rect hwcRect;
+
+    // Graphic Format
+    in >> str;
+    if (!in) {
+        testPrintE("Error parsing format from: %s", rectStr.c_str());
+        exit(20);
+    }
+    format = hwcTestGraphicFormatLookup(str.c_str());
+    if (format == NULL) {
+        testPrintE("Unknown graphic format in: %s", rectStr.c_str());
+        exit(21);
+    }
+    rect.format = format->format;
+
+    // Display Frame
+    rect.displayFrame = hwcTestParseHwcRect(in, error);
+    if (error) {
+        testPrintE("Invalid display frame in: %s", rectStr.c_str());
+        exit(22);
+    }
+
+    // Set default sourceDim and sourceCrop based on size of display frame.
+    // Default is source size equal to the size of the display frame, with
+    // the source crop being the entire size of the source frame.
+    rect.sourceDim = HwcTestDim(rect.displayFrame.right
+                                     - rect.displayFrame.left,
+                                 rect.displayFrame.bottom
+                                     - rect.displayFrame.top);
+    rect.sourceCrop.left = 0;
+    rect.sourceCrop.top = 0;
+    rect.sourceCrop.right = rect.sourceDim.width();
+    rect.sourceCrop.bottom = rect.sourceDim.height();
+
+    // Optional settings
+    while ((in.tellg() < (streampos) in.str().length())
+           && (in.tellg() != (streampos) -1)) {
+        string attrName;
+
+        in >> attrName;
+        if (in.eof()) { break; }
+        if (!in) {
+            testPrintE("Error reading attribute name in: %s",
+                       rectStr.c_str());
+            exit(23);
+        }
+
+        // Transform
+        if (attrName == "transform:") { // Transform
+            string str;
+
+            in >> str;
+            if (str == "none") {
+                rect.transform = 0;
+            } else if (str == "fliph") {
+                rect.transform = HWC_TRANSFORM_FLIP_H;
+            } else if (str == "flipv") {
+                rect.transform = HWC_TRANSFORM_FLIP_V;
+            } else if (str == "rot90") {
+                rect.transform = HWC_TRANSFORM_ROT_90;
+            } else if (str == "rot180") {
+                rect.transform = HWC_TRANSFORM_ROT_180;
+            } else if (str == "rot270") {
+                rect.transform = HWC_TRANSFORM_ROT_270;
+            } else {
+                testPrintE("Unknown transform of \"%s\" in: %s", str.c_str(),
+                           rectStr.c_str());
+                exit(24);
+            }
+        } else if (attrName == "blend:") { // Blend
+            string str;
+
+            in >> str;
+            if (str == string("none")) {
+                rect.blend = HWC_BLENDING_NONE;
+            } else if (str == "premult") {
+                rect.blend = HWC_BLENDING_PREMULT;
+            } else if (str == "coverage") {
+                rect.blend = HWC_BLENDING_COVERAGE;
+            } else {
+                testPrintE("Unknown blend of \"%s\" in: %s", str.c_str(),
+                           rectStr.c_str());
+                exit(25);
+            }
+        } else if (attrName == "color:") { // Color
+            rect.color = hwcTestParseColor(in, error);
+            if (error) {
+                testPrintE("Error parsing color in: %s", rectStr.c_str());
+                exit(26);
+            }
+        } else if (attrName == "alpha:") { // Alpha
+            in >> rect.alpha;
+            if (!in) {
+                testPrintE("Error parsing value for alpha attribute in: %s",
+                           rectStr.c_str());
+                exit(27);
+            }
+        } else if (attrName == "sourceDim:") { // Source Dimension
+           rect.sourceDim = hwcTestParseDim(in, error);
+            if (error) {
+                testPrintE("Error parsing source dimenision in: %s",
+                           rectStr.c_str());
+                exit(28);
+            }
+        } else if (attrName == "sourceCrop:") { // Source Crop
+            rect.sourceCrop = hwcTestParseHwcRect(in, error);
+            if (error) {
+                testPrintE("Error parsing source crop in: %s",
+                           rectStr.c_str());
+                exit(29);
+            }
+        } else { // Unknown attribute
+            testPrintE("Unknown attribute of \"%s\" in: %s", attrName.c_str(),
+                       rectStr.c_str());
+            exit(30);
+        }
+    }
+
+    // Validate
+    if (((uint32_t) rect.sourceCrop.left >= rect.sourceDim.width())
+        || ((uint32_t) rect.sourceCrop.right > rect.sourceDim.width())
+        || ((uint32_t) rect.sourceCrop.top >= rect.sourceDim.height())
+        || ((uint32_t) rect.sourceCrop.bottom > rect.sourceDim.height())) {
+        testPrintE("Invalid source crop in: %s", rectStr.c_str());
+        exit(31);
+    }
+    if ((rect.displayFrame.left >= width)
+        || (rect.displayFrame.right > width)
+        || (rect.displayFrame.top >= height)
+        || (rect.displayFrame.bottom > height)) {
+        testPrintE("Invalid display frame in: %s", rectStr.c_str());
+        exit(32);
+    }
+    if ((rect.alpha < 0.0) || (rect.alpha > 1.0)) {
+        testPrintE("Invalid alpha in: %s", rectStr.c_str());
+        exit(33);
+    }
+
+    // Create source texture
+    rect.texture = new GraphicBuffer(rect.sourceDim.width(),
+                                     rect.sourceDim.height(),
+                                     rect.format, texUsage);
+    if ((rv = rect.texture->initCheck()) != NO_ERROR) {
+        testPrintE("source texture initCheck failed, rv: %i", rv);
+        testPrintE("  %s", rectStr.c_str());
+
+    }
+
+    // Fill with uniform color
+    hwcTestFillColor(rect.texture.get(), rect.color, rect.alpha);
+    if (verbose) {
+        testPrintI("    buf: %p handle: %p format: %s width: %u height: %u "
+                   "color: %s alpha: %f",
+                   rect.texture.get(), rect.texture->handle, format->desc,
+                   rect.sourceDim.width(), rect.sourceDim.height(),
+                   string(rect.color).c_str(), rect.alpha);
+    }
+
+    return rect;
+}
+
+void init(void)
+{
+    // Seed pseudo random number generator
+    // Needed so that the pad areas of frames are filled with a deterministic
+    // pseudo random value.
+    srand48(0);
+
+    hwcTestInitDisplay(verbose, &dpy, &surface, &width, &height);
+
+    hwcTestOpenHwc(&hwcDevice);
+}
+
+void printSyntax(const char *cmd)
+{
+    testPrintE("  %s [options] (graphicFormat displayFrame [attributes],)...",
+               cmd);
+    testPrintE("    options:");
+    testPrintE("      -D End of test delay");
+    testPrintE("      -v Verbose");
+    testPrintE("");
+    testPrintE("    graphic formats:");
+    for (unsigned int n1 = 0; n1 < NUMA(hwcTestGraphicFormat); n1++) {
+        testPrintE("      %s", hwcTestGraphicFormat[n1].desc);
+    }
+    testPrintE("");
+    testPrintE("    displayFrame");
+    testPrintE("      [left, top, right, bottom]");
+    testPrintE("");
+    testPrintE("    attributes:");
+    testPrintE("      transform: none | fliph | flipv | rot90 | rot180 "
+               " | rot270");
+    testPrintE("      blend: none | premult | coverage");
+    testPrintE("      color: [0.##, 0.##, 0.##]");
+    testPrintE("      alpha: 0.##");
+    testPrintE("      sourceDim: [width, height]");
+    testPrintE("      sourceCrop: [left, top, right, bottom]");
+    testPrintE("");
+    testPrintE("    Example:");
+    testPrintE("      # White YV12 rectangle, with overlapping turquoise ");
+    testPrintE("      #  RGBA8888 rectangle at 30%% (alpha: 0.7) transparency");
+    testPrintE("      %s -v -D 30.0 \\", cmd);
+    testPrintE("        YV12 [50, 80, 200, 300] transform: none \\");
+    testPrintE("          color: [1.0, 0.5, 0.5], \\");
+    testPrintE("        RGBA8888 [100, 150, 300, 400] blend: coverage \\");
+    testPrintE("          color: [0.251, 0.878, 0.816] alpha: 0.7 \\");
+    testPrintE("          sourceDim: [50, 60] sourceCrop: [5, 8, 12, 15]");
+}
diff --git a/opengl/tests/hwc/hwcStress.cpp b/opengl/tests/hwc/hwcStress.cpp
new file mode 100644
index 0000000..1cefb4b
--- /dev/null
+++ b/opengl/tests/hwc/hwcStress.cpp
@@ -0,0 +1,645 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Hardware Composer stress test
+ *
+ * Performs a pseudo-random (prandom) sequence of operations to the
+ * Hardware Composer (HWC), for a specified number of passes or for
+ * a specified period of time.  By default the period of time is FLT_MAX,
+ * so that the number of passes will take precedence.
+ *
+ * The passes are grouped together, where (pass / passesPerGroup) specifies
+ * which group a particular pass is in.  This causes every passesPerGroup
+ * worth of sequential passes to be within the same group.  Computationally
+ * intensive operations are performed just once at the beginning of a group
+ * of passes and then used by all the passes in that group.  This is done
+ * so as to increase both the average and peak rate of graphic operations,
+ * by moving computationally intensive operations to the beginning of a group.
+ * In particular, at the start of each group of passes a set of
+ * graphic buffers are created, then used by the first and remaining
+ * passes of that group of passes.
+ *
+ * The per-group initialization of the graphic buffers is performed
+ * by a function called initFrames.  This function creates an array
+ * of smart pointers to the graphic buffers, in the form of a vector
+ * of vectors.  The array is accessed in row major order, so each
+ * row is a vector of smart pointers.  All the pointers of a single
+ * row point to graphic buffers which use the same pixel format and
+ * have the same dimension, although it is likely that each one is
+ * filled with a different color.  This is done so that after doing
+ * the first HWC prepare then set call, subsequent set calls can
+ * be made with each of the layer handles changed to a different
+ * graphic buffer within the same row.  Since the graphic buffers
+ * in a particular row have the same pixel format and dimension,
+ * additional HWC set calls can be made, without having to perform
+ * an HWC prepare call.
+ *
+ * This test supports the following command-line options:
+ *
+ *   -v        Verbose
+ *   -s num    Starting pass
+ *   -e num    Ending pass
+ *   -p num    Execute the single pass specified by num
+ *   -n num    Number of set operations to perform after each prepare operation
+ *   -t float  Maximum time in seconds to execute the test
+ *   -d float  Delay in seconds performed after each set operation
+ *   -D float  Delay in seconds performed after the last pass is executed
+ *
+ * Typically the test is executed for a large range of passes.  By default
+ * passes 0 through 99999 (100,000 passes) are executed.  Although this test
+ * does not validate the generated image, at times it is useful to reexecute
+ * a particular pass and leave the displayed image on the screen for an
+ * extended period of time.  This can be done either by setting the -s
+ * and -e options to the desired pass, along with a large value for -D.
+ * This can also be done via the -p option, again with a large value for
+ * the -D options.
+ *
+ * So far this test only contains code to create graphic buffers with
+ * a continuous solid color.  Although this test is unable to validate the
+ * image produced, any image that contains other than rectangles of a solid
+ * color are incorrect.  Note that the rectangles may use a transparent
+ * color and have a blending operation that causes the color in overlapping
+ * rectangles to be mixed.  In such cases the overlapping portions may have
+ * a different color from the rest of the rectangle.
+ */
+
+#include <algorithm>
+#include <assert.h>
+#include <cerrno>
+#include <cmath>
+#include <cstdlib>
+#include <ctime>
+#include <libgen.h>
+#include <sched.h>
+#include <sstream>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <vector>
+
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/EGLUtils.h>
+
+#define LOG_TAG "hwcStressTest"
+#include <utils/Log.h>
+#include <testUtil.h>
+
+#include <hardware/hwcomposer.h>
+
+#include <glTestLib.h>
+#include <hwc/hwcTestLib.h>
+
+using namespace std;
+using namespace android;
+
+const float maxSizeRatio = 1.3;  // Graphic buffers can be upto this munch
+                                 // larger than the default screen size
+const unsigned int passesPerGroup = 10; // A group of passes all use the same
+                                        // graphic buffers
+
+// Ratios at which rare and frequent conditions should be produced
+const float rareRatio = 0.1;
+const float freqRatio = 0.9;
+
+// Defaults for command-line options
+const bool defaultVerbose = false;
+const unsigned int defaultStartPass = 0;
+const unsigned int defaultEndPass = 99999;
+const unsigned int defaultPerPassNumSet = 10;
+const float defaultPerSetDelay = 0.0; // Default delay after each set
+                                      // operation.  Default delay of
+                                      // zero used so as to perform the
+                                      // the set operations as quickly
+                                      // as possible.
+const float defaultEndDelay = 2.0; // Default delay between completion of
+                                   // final pass and restart of framework
+const float defaultDuration = FLT_MAX; // A fairly long time, so that
+                                       // range of passes will have
+                                       // precedence
+
+// Command-line option settings
+static bool verbose = defaultVerbose;
+static unsigned int startPass = defaultStartPass;
+static unsigned int endPass = defaultEndPass;
+static unsigned int numSet = defaultPerPassNumSet;
+static float perSetDelay = defaultPerSetDelay;
+static float endDelay = defaultEndDelay;
+static float duration = defaultDuration;
+
+// Command-line mutual exclusion detection flags.
+// Corresponding flag set true once an option is used.
+bool eFlag, sFlag, pFlag;
+
+#define MAXSTR               100
+#define MAXCMD               200
+#define BITSPERBYTE            8 // TODO: Obtain from <values.h>, once
+                                 // it has been added
+
+#define CMD_STOP_FRAMEWORK   "stop 2>&1"
+#define CMD_START_FRAMEWORK  "start 2>&1"
+
+#define NUMA(a) (sizeof(a) / sizeof(a [0]))
+#define MEMCLR(addr, size) do { \
+        memset((addr), 0, (size)); \
+    } while (0)
+
+// File scope constants
+const unsigned int blendingOps[] = {
+    HWC_BLENDING_NONE,
+    HWC_BLENDING_PREMULT,
+    HWC_BLENDING_COVERAGE,
+};
+const unsigned int layerFlags[] = {
+    HWC_SKIP_LAYER,
+};
+const vector<unsigned int> vecLayerFlags(layerFlags,
+    layerFlags + NUMA(layerFlags));
+
+const unsigned int transformFlags[] = {
+    HWC_TRANSFORM_FLIP_H,
+    HWC_TRANSFORM_FLIP_V,
+    HWC_TRANSFORM_ROT_90,
+    // ROT_180 & ROT_270 intentionally not listed, because they
+    // they are formed from combinations of the flags already listed.
+};
+const vector<unsigned int> vecTransformFlags(transformFlags,
+    transformFlags + NUMA(transformFlags));
+
+// File scope globals
+static const int texUsage = GraphicBuffer::USAGE_HW_TEXTURE |
+        GraphicBuffer::USAGE_SW_WRITE_RARELY;
+static hwc_composer_device_t *hwcDevice;
+static EGLDisplay dpy;
+static EGLSurface surface;
+static EGLint width, height;
+static vector <vector <sp<GraphicBuffer> > > frames;
+
+// File scope prototypes
+void init(void);
+void initFrames(unsigned int seed);
+template <class T> vector<T> vectorRandSelect(const vector<T>& vec, size_t num);
+template <class T> T vectorOr(const vector<T>& vec);
+
+/*
+ * Main
+ *
+ * Performs the following high-level sequence of operations:
+ *
+ *   1. Command-line parsing
+ *
+ *   2. Initialization
+ *
+ *   3. For each pass:
+ *
+ *        a. If pass is first pass or in a different group from the
+ *           previous pass, initialize the array of graphic buffers.
+ *
+ *        b. Create a HWC list with room to specify a prandomly
+ *           selected number of layers.
+ *
+ *        c. Select a subset of the rows from the graphic buffer array,
+ *           such that there is a unique row to be used for each
+ *           of the layers in the HWC list.
+ *
+ *        d. Prandomly fill in the HWC list with handles
+ *           selected from any of the columns of the selected row.
+ *
+ *        e. Pass the populated list to the HWC prepare call.
+ *
+ *        f. Pass the populated list to the HWC set call.
+ *
+ *        g. If additional set calls are to be made, then for each
+ *           additional set call, select a new set of handles and
+ *           perform the set call.
+ */
+int
+main(int argc, char *argv[])
+{
+    int rv, opt;
+    char *chptr;
+    unsigned int pass;
+    char cmd[MAXCMD];
+    struct timeval startTime, currentTime, delta;
+
+    testSetLogCatTag(LOG_TAG);
+
+    // Parse command line arguments
+    while ((opt = getopt(argc, argv, "vp:d:D:n:s:e:t:?h")) != -1) {
+        switch (opt) {
+          case 'd': // Delay after each set operation
+            perSetDelay = strtod(optarg, &chptr);
+            if ((*chptr != '\0') || (perSetDelay < 0.0)) {
+                testPrintE("Invalid command-line specified per pass delay of: "
+                           "%s", optarg);
+                exit(1);
+            }
+            break;
+
+          case 'D': // End of test delay
+                    // Delay between completion of final pass and restart
+                    // of framework
+            endDelay = strtod(optarg, &chptr);
+            if ((*chptr != '\0') || (endDelay < 0.0)) {
+                testPrintE("Invalid command-line specified end of test delay "
+                           "of: %s", optarg);
+                exit(2);
+            }
+            break;
+
+          case 't': // Duration
+            duration = strtod(optarg, &chptr);
+            if ((*chptr != '\0') || (duration < 0.0)) {
+                testPrintE("Invalid command-line specified duration of: %s",
+                           optarg);
+                exit(3);
+            }
+            break;
+
+          case 'n': // Num set operations per pass
+            numSet = strtoul(optarg, &chptr, 10);
+            if (*chptr != '\0') {
+                testPrintE("Invalid command-line specified num set per pass "
+                           "of: %s", optarg);
+                exit(4);
+            }
+            break;
+
+          case 's': // Starting Pass
+            sFlag = true;
+            if (pFlag) {
+                testPrintE("Invalid combination of command-line options.");
+                testPrintE("  The -p option is mutually exclusive from the");
+                testPrintE("  -s and -e options.");
+                exit(5);
+            }
+            startPass = strtoul(optarg, &chptr, 10);
+            if (*chptr != '\0') {
+                testPrintE("Invalid command-line specified starting pass "
+                           "of: %s", optarg);
+                exit(6);
+            }
+            break;
+
+          case 'e': // Ending Pass
+            eFlag = true;
+            if (pFlag) {
+                testPrintE("Invalid combination of command-line options.");
+                testPrintE("  The -p option is mutually exclusive from the");
+                testPrintE("  -s and -e options.");
+                exit(7);
+            }
+            endPass = strtoul(optarg, &chptr, 10);
+            if (*chptr != '\0') {
+                testPrintE("Invalid command-line specified ending pass "
+                           "of: %s", optarg);
+                exit(8);
+            }
+            break;
+
+          case 'p': // Run a single specified pass
+            pFlag = true;
+            if (sFlag || eFlag) {
+                testPrintE("Invalid combination of command-line options.");
+                testPrintE("  The -p option is mutually exclusive from the");
+                testPrintE("  -s and -e options.");
+                exit(9);
+            }
+            startPass = endPass = strtoul(optarg, &chptr, 10);
+            if (*chptr != '\0') {
+                testPrintE("Invalid command-line specified pass of: %s",
+                           optarg);
+                exit(10);
+            }
+            break;
+
+          case 'v': // Verbose
+            verbose = true;
+            break;
+
+          case 'h': // Help
+          case '?':
+          default:
+            testPrintE("  %s [options]", basename(argv[0]));
+            testPrintE("    options:");
+            testPrintE("      -p Execute specified pass");
+            testPrintE("      -s Starting pass");
+            testPrintE("      -e Ending pass");
+            testPrintE("      -t Duration");
+            testPrintE("      -d Delay after each set operation");
+            testPrintE("      -D End of test delay");
+            testPrintE("      -n Num set operations per pass");
+            testPrintE("      -v Verbose");
+            exit(((optopt == 0) || (optopt == '?')) ? 0 : 11);
+        }
+    }
+    if (endPass < startPass) {
+        testPrintE("Unexpected ending pass before starting pass");
+        testPrintE("  startPass: %u endPass: %u", startPass, endPass);
+        exit(12);
+    }
+    if (argc != optind) {
+        testPrintE("Unexpected command-line postional argument");
+        testPrintE("  %s [-s start_pass] [-e end_pass] [-t duration]",
+            basename(argv[0]));
+        exit(13);
+    }
+    testPrintI("duration: %g", duration);
+    testPrintI("startPass: %u", startPass);
+    testPrintI("endPass: %u", endPass);
+    testPrintI("numSet: %u", numSet);
+
+    // Stop framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_STOP_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_STOP_FRAMEWORK);
+        exit(14);
+    }
+    testExecCmd(cmd);
+    testDelay(1.0); // TODO - need means to query whether asyncronous stop
+                    // framework operation has completed.  For now, just wait
+                    // a long time.
+
+    init();
+
+    // For each pass
+    gettimeofday(&startTime, NULL);
+    for (pass = startPass; pass <= endPass; pass++) {
+        // Stop if duration of work has already been performed
+        gettimeofday(&currentTime, NULL);
+        delta = tvDelta(&startTime, &currentTime);
+        if (tv2double(&delta) > duration) { break; }
+
+        // Regenerate a new set of test frames when this pass is
+        // either the first pass or is in a different group then
+        // the previous pass.  A group of passes are passes that
+        // all have the same quotient when their pass number is
+        // divided by passesPerGroup.
+        if ((pass == startPass)
+            || ((pass / passesPerGroup) != ((pass - 1) / passesPerGroup))) {
+            initFrames(pass / passesPerGroup);
+        }
+
+        testPrintI("==== Starting pass: %u", pass);
+
+        // Cause deterministic sequence of prandom numbers to be
+        // generated for this pass.
+        srand48(pass);
+
+        hwc_layer_list_t *list;
+        list = hwcTestCreateLayerList(testRandMod(frames.size()) + 1);
+        if (list == NULL) {
+            testPrintE("hwcTestCreateLayerList failed");
+            exit(20);
+        }
+
+        // Prandomly select a subset of frames to be used by this pass.
+        vector <vector <sp<GraphicBuffer> > > selectedFrames;
+        selectedFrames = vectorRandSelect(frames, list->numHwLayers);
+
+        // Any transform tends to create a layer that the hardware
+        // composer is unable to support and thus has to leave for
+        // SurfaceFlinger.  Place heavy bias on specifying no transforms.
+        bool noTransform = testRandFract() > rareRatio;
+
+        for (unsigned int n1 = 0; n1 < list->numHwLayers; n1++) {
+            unsigned int idx = testRandMod(selectedFrames[n1].size());
+            sp<GraphicBuffer> gBuf = selectedFrames[n1][idx];
+            hwc_layer_t *layer = &list->hwLayers[n1];
+            layer->handle = gBuf->handle;
+
+            layer->blending = blendingOps[testRandMod(NUMA(blendingOps))];
+            layer->flags = (testRandFract() > rareRatio) ? 0
+                : vectorOr(vectorRandSelect(vecLayerFlags,
+                           testRandMod(vecLayerFlags.size() + 1)));
+            layer->transform = (noTransform || testRandFract() > rareRatio) ? 0
+                : vectorOr(vectorRandSelect(vecTransformFlags,
+                           testRandMod(vecTransformFlags.size() + 1)));
+            layer->sourceCrop.left = testRandMod(gBuf->getWidth());
+            layer->sourceCrop.top = testRandMod(gBuf->getHeight());
+            layer->sourceCrop.right = layer->sourceCrop.left
+                + testRandMod(gBuf->getWidth() - layer->sourceCrop.left) + 1;
+            layer->sourceCrop.bottom = layer->sourceCrop.top
+                + testRandMod(gBuf->getHeight() - layer->sourceCrop.top) + 1;
+            layer->displayFrame.left = testRandMod(width);
+            layer->displayFrame.top = testRandMod(height);
+            layer->displayFrame.right = layer->displayFrame.left
+                + testRandMod(width - layer->displayFrame.left) + 1;
+            layer->displayFrame.bottom = layer->displayFrame.top
+                + testRandMod(height - layer->displayFrame.top) + 1;
+
+            // Increase the frequency that a scale factor of 1.0 from
+            // the sourceCrop to displayFrame occurs.  This is the
+            // most common scale factor used by applications and would
+            // be rarely produced by this stress test without this
+            // logic.
+            if (testRandFract() <= freqRatio) {
+                // Only change to scale factor to 1.0 if both the
+                // width and height will fit.
+                int sourceWidth = layer->sourceCrop.right
+                                  - layer->sourceCrop.left;
+                int sourceHeight = layer->sourceCrop.bottom
+                                   - layer->sourceCrop.top;
+                if (((layer->displayFrame.left + sourceWidth) <= width)
+                    && ((layer->displayFrame.top + sourceHeight) <= height)) {
+                    layer->displayFrame.right = layer->displayFrame.left
+                                                + sourceWidth;
+                    layer->displayFrame.bottom = layer->displayFrame.top
+                                                 + sourceHeight;
+                }
+            }
+
+            layer->visibleRegionScreen.numRects = 1;
+            layer->visibleRegionScreen.rects = &layer->displayFrame;
+        }
+
+        // Perform prepare operation
+        if (verbose) { testPrintI("Prepare:"); hwcTestDisplayList(list); }
+        hwcDevice->prepare(hwcDevice, list);
+        if (verbose) {
+            testPrintI("Post Prepare:");
+            hwcTestDisplayListPrepareModifiable(list);
+        }
+
+        // Turn off the geometry changed flag
+        list->flags &= ~HWC_GEOMETRY_CHANGED;
+
+        // Perform the set operation(s)
+        if (verbose) {testPrintI("Set:"); }
+        for (unsigned int n1 = 0; n1 < numSet; n1++) {
+            if (verbose) { hwcTestDisplayListHandles(list); }
+            hwcDevice->set(hwcDevice, dpy, surface, list);
+
+            // Prandomly select a new set of handles
+            for (unsigned int n1 = 0; n1 < list->numHwLayers; n1++) {
+                unsigned int idx = testRandMod(selectedFrames[n1].size());
+                sp<GraphicBuffer> gBuf = selectedFrames[n1][idx];
+                hwc_layer_t *layer = &list->hwLayers[n1];
+                layer->handle = (native_handle_t *) gBuf->handle;
+            }
+
+            testDelay(perSetDelay);
+        }
+
+        hwcTestFreeLayerList(list);
+        testPrintI("==== Completed pass: %u", pass);
+    }
+
+    testDelay(endDelay);
+
+    // Start framework
+    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_START_FRAMEWORK);
+    if (rv >= (signed) sizeof(cmd) - 1) {
+        testPrintE("Command too long for: %s", CMD_START_FRAMEWORK);
+        exit(21);
+    }
+    testExecCmd(cmd);
+
+    testPrintI("Successfully completed %u passes", pass - startPass);
+
+    return 0;
+}
+
+void init(void)
+{
+    srand48(0); // Defensively set pseudo random number generator.
+                // Should not need to set this, because a stress test
+                // sets the seed on each pass.  Defensively set it here
+                // so that future code that uses pseudo random numbers
+                // before the first pass will be deterministic.
+
+    hwcTestInitDisplay(verbose, &dpy, &surface, &width, &height);
+
+    hwcTestOpenHwc(&hwcDevice);
+}
+
+/*
+ * Initialize Frames
+ *
+ * Creates an array of graphic buffers, within the global variable
+ * named frames.  The graphic buffers are contained within a vector of
+ * vectors.  All the graphic buffers in a particular row are of the same
+ * format and dimension.  Each graphic buffer is uniformly filled with a
+ * prandomly selected color.  It is likely that each buffer, even
+ * in the same row, will be filled with a unique color.
+ */
+void initFrames(unsigned int seed)
+{
+    int rv;
+    const size_t maxRows = 5;
+    const size_t minCols = 2;  // Need at least double buffering
+    const size_t maxCols = 4;  // One more than triple buffering
+
+    if (verbose) { testPrintI("initFrames seed: %u", seed); }
+    srand48(seed);
+    size_t rows = testRandMod(maxRows) + 1;
+
+    frames.clear();
+    frames.resize(rows);
+
+    for (unsigned int row = 0; row < rows; row++) {
+        // All frames within a row have to have the same format and
+        // dimensions.  Width and height need to be >= 1.
+        unsigned int formatIdx = testRandMod(NUMA(hwcTestGraphicFormat));
+        const struct hwcTestGraphicFormat *formatPtr
+            = &hwcTestGraphicFormat[formatIdx];
+        int format = formatPtr->format;
+
+        // Pick width and height, which must be >= 1 and the size
+        // mod the wMod/hMod value must be equal to 0.
+        size_t w = (width * maxSizeRatio) * testRandFract();
+        size_t h = (height * maxSizeRatio) * testRandFract();
+        w = max(1u, w);
+        h = max(1u, h);
+        if ((w % formatPtr->wMod) != 0) {
+            w += formatPtr->wMod - (w % formatPtr->wMod);
+        }
+        if ((h % formatPtr->hMod) != 0) {
+            h += formatPtr->hMod - (h % formatPtr->hMod);
+        }
+        if (verbose) {
+            testPrintI("  frame %u width: %u height: %u format: %u %s",
+                       row, w, h, format, hwcTestGraphicFormat2str(format));
+        }
+
+        size_t cols = testRandMod((maxCols + 1) - minCols) + minCols;
+        frames[row].resize(cols);
+        for (unsigned int col = 0; col < cols; col++) {
+            ColorFract color(testRandFract(), testRandFract(), testRandFract());
+            float alpha = testRandFract();
+
+            frames[row][col] = new GraphicBuffer(w, h, format, texUsage);
+            if ((rv = frames[row][col]->initCheck()) != NO_ERROR) {
+                testPrintE("GraphicBuffer initCheck failed, rv: %i", rv);
+                testPrintE("  frame %u width: %u height: %u format: %u %s",
+                           row, w, h, format, hwcTestGraphicFormat2str(format));
+                exit(80);
+            }
+
+            hwcTestFillColor(frames[row][col].get(), color, alpha);
+            if (verbose) {
+                testPrintI("    buf: %p handle: %p color: %s alpha: %f",
+                           frames[row][col].get(), frames[row][col]->handle,
+                           string(color).c_str(), alpha);
+            }
+        }
+    }
+}
+
+/*
+ * Vector Random Select
+ *
+ * Prandomly selects and returns num elements from vec.
+ */
+template <class T>
+vector<T> vectorRandSelect(const vector<T>& vec, size_t num)
+{
+    vector<T> rv = vec;
+
+    while (rv.size() > num) {
+        rv.erase(rv.begin() + testRandMod(rv.size()));
+    }
+
+    return rv;
+}
+
+/*
+ * Vector Or
+ *
+ * Or's togethen the values of each element of vec and returns the result.
+ */
+template <class T>
+T vectorOr(const vector<T>& vec)
+{
+    T rv = 0;
+
+    for (size_t n1 = 0; n1 < vec.size(); n1++) {
+        rv |= vec[n1];
+    }
+
+    return rv;
+}
diff --git a/opengl/tests/hwc/hwcTestLib.cpp b/opengl/tests/hwc/hwcTestLib.cpp
new file mode 100644
index 0000000..575af89
--- /dev/null
+++ b/opengl/tests/hwc/hwcTestLib.cpp
@@ -0,0 +1,995 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Hardware Composer Test Library
+ * Utility library functions for use by the Hardware Composer test cases
+ */
+
+#include <sstream>
+#include <string>
+
+#include <arpa/inet.h> // For ntohl() and htonl()
+
+#include <hwc/hwcTestLib.h>
+
+// Defines
+#define NUMA(a) (sizeof(a) / sizeof(a [0]))
+
+// Function Prototypes
+static void printGLString(const char *name, GLenum s);
+static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE);
+static void checkGlError(const char* op);
+static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config);
+
+using namespace std;
+using namespace android;
+
+
+#define BITSPERBYTE            8 // TODO: Obtain from <values.h>, once
+                                 // it has been added
+
+// Initialize Display
+void hwcTestInitDisplay(bool verbose, EGLDisplay *dpy, EGLSurface *surface,
+    EGLint *width, EGLint *height)
+{
+    static EGLContext context;
+
+    int rv;
+
+    EGLBoolean returnValue;
+    EGLConfig myConfig = {0};
+    EGLint contextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
+    EGLint sConfigAttribs[] = {
+        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+        EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+        EGL_NONE };
+    EGLint majorVersion, minorVersion;
+
+    checkEglError("<init>");
+    *dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+    checkEglError("eglGetDisplay");
+    if (*dpy == EGL_NO_DISPLAY) {
+        testPrintE("eglGetDisplay returned EGL_NO_DISPLAY");
+        exit(70);
+    }
+
+    returnValue = eglInitialize(*dpy, &majorVersion, &minorVersion);
+    checkEglError("eglInitialize", returnValue);
+    if (verbose) {
+        testPrintI("EGL version %d.%d", majorVersion, minorVersion);
+    }
+    if (returnValue != EGL_TRUE) {
+        testPrintE("eglInitialize failed");
+        exit(71);
+    }
+
+    EGLNativeWindowType window = android_createDisplaySurface();
+    if (window == NULL) {
+        testPrintE("android_createDisplaySurface failed");
+        exit(72);
+    }
+    returnValue = EGLUtils::selectConfigForNativeWindow(*dpy,
+        sConfigAttribs, window, &myConfig);
+    if (returnValue) {
+        testPrintE("EGLUtils::selectConfigForNativeWindow() returned %d",
+            returnValue);
+        exit(73);
+    }
+    checkEglError("EGLUtils::selectConfigForNativeWindow");
+
+    if (verbose) {
+        testPrintI("Chose this configuration:");
+        printEGLConfiguration(*dpy, myConfig);
+    }
+
+    *surface = eglCreateWindowSurface(*dpy, myConfig, window, NULL);
+    checkEglError("eglCreateWindowSurface");
+    if (*surface == EGL_NO_SURFACE) {
+        testPrintE("gelCreateWindowSurface failed.");
+        exit(74);
+    }
+
+    context = eglCreateContext(*dpy, myConfig, EGL_NO_CONTEXT, contextAttribs);
+    checkEglError("eglCreateContext");
+    if (context == EGL_NO_CONTEXT) {
+        testPrintE("eglCreateContext failed");
+        exit(75);
+    }
+    returnValue = eglMakeCurrent(*dpy, *surface, *surface, context);
+    checkEglError("eglMakeCurrent", returnValue);
+    if (returnValue != EGL_TRUE) {
+        testPrintE("eglMakeCurrent failed");
+        exit(76);
+    }
+    eglQuerySurface(*dpy, *surface, EGL_WIDTH, width);
+    checkEglError("eglQuerySurface");
+    eglQuerySurface(*dpy, *surface, EGL_HEIGHT, height);
+    checkEglError("eglQuerySurface");
+
+    if (verbose) {
+        testPrintI("Window dimensions: %d x %d", *width, *height);
+
+        printGLString("Version", GL_VERSION);
+        printGLString("Vendor", GL_VENDOR);
+        printGLString("Renderer", GL_RENDERER);
+        printGLString("Extensions", GL_EXTENSIONS);
+    }
+}
+
+// Open Hardware Composer Device
+void hwcTestOpenHwc(hwc_composer_device_t **hwcDevicePtr)
+{
+    int rv;
+    hw_module_t const *hwcModule;
+
+    if ((rv = hw_get_module(HWC_HARDWARE_MODULE_ID, &hwcModule)) != 0) {
+        testPrintE("hw_get_module failed, rv: %i", rv);
+        errno = -rv;
+        perror(NULL);
+        exit(77);
+    }
+    if ((rv = hwc_open(hwcModule, hwcDevicePtr)) != 0) {
+        testPrintE("hwc_open failed, rv: %i", rv);
+        errno = -rv;
+        perror(NULL);
+        exit(78);
+    }
+}
+
+// Color fraction class to string conversion
+ColorFract::operator string()
+{
+    ostringstream out;
+
+    out << '[' << this->c1() << ", "
+        << this->c2() << ", "
+        << this->c3() << ']';
+
+    return out.str();
+}
+
+// Dimension class to string conversion
+HwcTestDim::operator string()
+{
+    ostringstream out;
+
+    out << '[' << this->width() << ", "
+        << this->height() << ']';
+
+    return out.str();
+}
+
+// Hardware Composer rectangle to string conversion
+string hwcTestRect2str(const struct hwc_rect& rect)
+{
+    ostringstream out;
+
+    out << '[';
+    out << rect.left << ", ";
+    out << rect.top << ", ";
+    out << rect.right << ", ";
+    out << rect.bottom;
+    out << ']';
+
+    return out.str();
+}
+
+// Parse HWC rectangle description of form [left, top, right, bottom]
+struct hwc_rect hwcTestParseHwcRect(istringstream& in, bool& error)
+{
+    struct hwc_rect rect;
+    char chStart, ch;
+
+    // Defensively specify that an error occurred.  Will clear
+    // error flag if all of parsing succeeds.
+    error = true;
+
+    // First character should be a [ or <
+    in >> chStart;
+    if (!in || ((chStart != '<') && (chStart != '['))) { return rect; }
+
+    // Left
+    in >> rect.left;
+    if (!in) { return rect; }
+    in >> ch;
+    if (!in || (ch != ',')) { return rect; }
+
+    // Top
+    in >> rect.top;
+    if (!in) { return rect; }
+    in >> ch;
+    if (!in || (ch != ',')) { return rect; }
+
+    // Right
+    in >> rect.right;
+    if (!in) { return rect; }
+    in >> ch;
+    if (!in || (ch != ',')) { return rect; }
+
+    // Bottom
+    in >> rect.bottom;
+    if (!in) { return rect; }
+
+    // Closing > or ]
+    in >> ch;
+    if (!in) { return rect; }
+    if (((chStart == '<') && (ch != '>'))
+        || ((chStart == '[') && (ch != ']'))) { return rect; }
+
+    // Validate right and bottom are greater than left and top
+    if ((rect.right <= rect.left) || (rect.bottom <= rect.top)) { return rect; }
+
+    // Made It, clear error indicator
+    error = false;
+
+    return rect;
+}
+
+// Parse dimension of form [width, height]
+HwcTestDim hwcTestParseDim(istringstream& in, bool& error)
+{
+    HwcTestDim dim;
+    char chStart, ch;
+    uint32_t val;
+
+    // Defensively specify that an error occurred.  Will clear
+    // error flag if all of parsing succeeds.
+    error = true;
+
+    // First character should be a [ or <
+    in >> chStart;
+    if (!in || ((chStart != '<') && (chStart != '['))) { return dim; }
+
+    // Width
+    in >> val;
+    if (!in) { return dim; }
+    dim.setWidth(val);
+    in >> ch;
+    if (!in || (ch != ',')) { return dim; }
+
+    // Height
+    in >> val;
+    if (!in) { return dim; }
+    dim.setHeight(val);
+
+    // Closing > or ]
+    in >> ch;
+    if (!in) { return dim; }
+    if (((chStart == '<') && (ch != '>'))
+        || ((chStart == '[') && (ch != ']'))) { return dim; }
+
+    // Validate width and height greater than 0
+    if ((dim.width() <= 0) || (dim.height() <= 0)) { return dim; }
+
+    // Made It, clear error indicator
+    error = false;
+    return dim;
+}
+
+// Parse fractional color of form [0.##, 0.##, 0.##]
+// Fractional values can be from 0.0 to 1.0 inclusive.  Note, integer
+// values of 0.0 and 1.0, which are non-fractional, are considered valid.
+// They are an exception, all other valid inputs are fractions.
+ColorFract hwcTestParseColor(istringstream& in, bool& error)
+{
+    ColorFract color;
+    char chStart, ch;
+    float c1, c2, c3;
+
+    // Defensively specify that an error occurred.  Will clear
+    // error flag if all of parsing succeeds.
+    error = true;
+
+    // First character should be a [ or <
+    in >> chStart;
+    if (!in || ((chStart != '<') && (chStart != '['))) { return color; }
+
+    // 1st Component
+    in >> c1;
+    if (!in) { return color; }
+    if ((c1 < 0.0) || (c1 > 1.0)) { return color; }
+    in >> ch;
+    if (!in || (ch != ',')) { return color; }
+
+    // 2nd Component
+    in >> c2;
+    if (!in) { return color; }
+    if ((c2 < 0.0) || (c2 > 1.0)) { return color; }
+    in >> ch;
+    if (!in || (ch != ',')) { return color; }
+
+    // 3rd Component
+    in >> c3;
+    if (!in) { return color; }
+    if ((c3 < 0.0) || (c3 > 1.0)) { return color; }
+
+    // Closing > or ]
+    in >> ch;
+    if (!in) { return color; }
+    if (((chStart == '<') && (ch != '>'))
+        || ((chStart == '[') && (ch != ']'))) { return color; }
+
+    // Are all the components fractional
+    if ((c1 < 0.0) || (c1 > 1.0)
+        || (c2 < 0.0) || (c2 > 1.0)
+        || (c3 < 0.0) || (c3 > 1.0)) { return color; }
+
+    // Made It, clear error indicator
+    error = false;
+
+    return ColorFract(c1, c2, c3);
+}
+
+// Look up and return pointer to structure with the characteristics
+// of the graphic format named by the desc parameter.  Search failure
+// indicated by the return of NULL.
+const struct hwcTestGraphicFormat *hwcTestGraphicFormatLookup(const char *desc)
+{
+    for (unsigned int n1 = 0; n1 < NUMA(hwcTestGraphicFormat); n1++) {
+        if (string(desc) == string(hwcTestGraphicFormat[n1].desc)) {
+            return &hwcTestGraphicFormat[n1];
+        }
+    }
+
+    return NULL;
+}
+
+// Given the integer ID of a graphic format, return a pointer to
+// a string that describes the format.
+const char *hwcTestGraphicFormat2str(uint32_t format)
+{
+    const static char *unknown = "unknown";
+
+    for (unsigned int n1 = 0; n1 < NUMA(hwcTestGraphicFormat); n1++) {
+        if (format == hwcTestGraphicFormat[n1].format) {
+            return hwcTestGraphicFormat[n1].desc;
+        }
+    }
+
+    return unknown;
+}
+
+/*
+ * hwcTestCreateLayerList
+ * Dynamically creates layer list with numLayers worth
+ * of hwLayers entries.
+ */
+hwc_layer_list_t *hwcTestCreateLayerList(size_t numLayers)
+{
+    hwc_layer_list_t *list;
+
+    size_t size = sizeof(hwc_layer_list) + numLayers * sizeof(hwc_layer_t);
+    if ((list = (hwc_layer_list_t *) calloc(1, size)) == NULL) {
+        return NULL;
+    }
+    list->flags = HWC_GEOMETRY_CHANGED;
+    list->numHwLayers = numLayers;
+
+    return list;
+}
+
+/*
+ * hwcTestFreeLayerList
+ * Frees memory previous allocated via hwcTestCreateLayerList().
+ */
+void hwcTestFreeLayerList(hwc_layer_list_t *list)
+{
+    free(list);
+}
+
+// Display the settings of the layer list pointed to by list
+void hwcTestDisplayList(hwc_layer_list_t *list)
+{
+    testPrintI("  flags: %#x%s", list->flags,
+               (list->flags & HWC_GEOMETRY_CHANGED) ? " GEOMETRY_CHANGED" : "");
+    testPrintI("  numHwLayers: %u", list->numHwLayers);
+
+    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
+        testPrintI("    layer %u compositionType: %#x%s%s", layer,
+                   list->hwLayers[layer].compositionType,
+                   (list->hwLayers[layer].compositionType == HWC_FRAMEBUFFER)
+                       ? " FRAMEBUFFER" : "",
+                   (list->hwLayers[layer].compositionType == HWC_OVERLAY)
+                       ? " OVERLAY" : "");
+
+        testPrintI("      hints: %#x",
+                   list->hwLayers[layer].hints,
+                   (list->hwLayers[layer].hints & HWC_HINT_TRIPLE_BUFFER)
+                       ? " TRIPLE_BUFFER" : "",
+                   (list->hwLayers[layer].hints & HWC_HINT_CLEAR_FB)
+                       ? " CLEAR_FB" : "");
+
+        testPrintI("      flags: %#x%s",
+                   list->hwLayers[layer].flags,
+                   (list->hwLayers[layer].flags & HWC_SKIP_LAYER)
+                       ? " SKIP_LAYER" : "");
+
+        testPrintI("      handle: %p",
+                   list->hwLayers[layer].handle);
+
+        // Intentionally skipped display of ROT_180 & ROT_270,
+        // which are formed from combinations of the other flags.
+        testPrintI("      transform: %#x%s%s%s",
+                   list->hwLayers[layer].transform,
+                   (list->hwLayers[layer].transform & HWC_TRANSFORM_FLIP_H)
+                       ? " FLIP_H" : "",
+                   (list->hwLayers[layer].transform & HWC_TRANSFORM_FLIP_V)
+                       ? " FLIP_V" : "",
+                   (list->hwLayers[layer].transform & HWC_TRANSFORM_ROT_90)
+                       ? " ROT_90" : "");
+
+        testPrintI("      blending: %#x%s%s%s",
+                   list->hwLayers[layer].blending,
+                   (list->hwLayers[layer].blending == HWC_BLENDING_NONE)
+                       ? " NONE" : "",
+                   (list->hwLayers[layer].blending == HWC_BLENDING_PREMULT)
+                       ? " PREMULT" : "",
+                   (list->hwLayers[layer].blending == HWC_BLENDING_COVERAGE)
+                       ? " COVERAGE" : "");
+
+        testPrintI("      sourceCrop: %s",
+                   hwcTestRect2str(list->hwLayers[layer].sourceCrop).c_str());
+        testPrintI("      displayFrame: %s",
+                   hwcTestRect2str(list->hwLayers[layer].displayFrame).c_str());
+        testPrintI("      scaleFactor: [%f, %f]",
+                   (float) (list->hwLayers[layer].displayFrame.right
+                            - list->hwLayers[layer].displayFrame.left)
+                       / (float) (list->hwLayers[layer].sourceCrop.right
+                            - list->hwLayers[layer].sourceCrop.left),
+                   (float) (list->hwLayers[layer].displayFrame.bottom
+                            - list->hwLayers[layer].displayFrame.top)
+                       / (float) (list->hwLayers[layer].sourceCrop.bottom
+                            - list->hwLayers[layer].sourceCrop.top));
+    }
+}
+
+/*
+ * Display List Prepare Modifiable
+ *
+ * Displays the portions of a list that are meant to be modified by
+ * a prepare call.
+ */
+void hwcTestDisplayListPrepareModifiable(hwc_layer_list_t *list)
+{
+    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
+        testPrintI("    layer %u compositionType: %#x%s%s", layer,
+                   list->hwLayers[layer].compositionType,
+                   (list->hwLayers[layer].compositionType == HWC_FRAMEBUFFER)
+                       ? " FRAMEBUFFER" : "",
+                   (list->hwLayers[layer].compositionType == HWC_OVERLAY)
+                       ? " OVERLAY" : "");
+        testPrintI("      hints: %#x%s%s",
+                   list->hwLayers[layer].hints,
+                   (list->hwLayers[layer].hints & HWC_HINT_TRIPLE_BUFFER)
+                       ? " TRIPLE_BUFFER" : "",
+                   (list->hwLayers[layer].hints & HWC_HINT_CLEAR_FB)
+                       ? " CLEAR_FB" : "");
+    }
+}
+
+/*
+ * Display List Handles
+ *
+ * Displays the handles of all the graphic buffers in the list.
+ */
+void hwcTestDisplayListHandles(hwc_layer_list_t *list)
+{
+    const unsigned int maxLayersPerLine = 6;
+
+    ostringstream str("  layers:");
+    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
+        str << ' ' << list->hwLayers[layer].handle;
+        if (((layer % maxLayersPerLine) == (maxLayersPerLine - 1))
+            && (layer != list->numHwLayers - 1)) {
+            testPrintI("%s", str.str().c_str());
+            str.str("    ");
+        }
+    }
+    testPrintI("%s", str.str().c_str());
+}
+
+// Returns a uint32_t that contains a format specific representation of a
+// single pixel of the given color and alpha values.
+uint32_t hwcTestColor2Pixel(uint32_t format, ColorFract color, float alpha)
+{
+    const struct attrib {
+        uint32_t format;
+        bool   hostByteOrder;
+        size_t bytes;
+        size_t c1Offset;
+        size_t c1Size;
+        size_t c2Offset;
+        size_t c2Size;
+        size_t c3Offset;
+        size_t c3Size;
+        size_t aOffset;
+        size_t aSize;
+    } attributes[] = {
+        {HAL_PIXEL_FORMAT_RGBA_8888, false, 4,  0, 8,  8, 8, 16, 8, 24, 8},
+        {HAL_PIXEL_FORMAT_RGBX_8888, false, 4,  0, 8,  8, 8, 16, 8,  0, 0},
+        {HAL_PIXEL_FORMAT_RGB_888,   false, 3,  0, 8,  8, 8, 16, 8,  0, 0},
+        {HAL_PIXEL_FORMAT_RGB_565,   true,  2,  0, 5,  5, 6, 11, 5,  0, 0},
+        {HAL_PIXEL_FORMAT_BGRA_8888, false, 4, 16, 8,  8, 8,  0, 8, 24, 8},
+        {HAL_PIXEL_FORMAT_RGBA_5551, true , 2,  0, 5,  5, 5, 10, 5, 15, 1},
+        {HAL_PIXEL_FORMAT_RGBA_4444, false, 2, 12, 4,  0, 4,  4, 4,  8, 4},
+        {HAL_PIXEL_FORMAT_YV12,      true,  3, 16, 8,  8, 8,  0, 8,  0, 0},  
+    };
+
+    const struct attrib *attrib;
+    for (attrib = attributes; attrib < attributes + NUMA(attributes);
+         attrib++) {
+        if (attrib->format == format) { break; }
+    }
+    if (attrib >= attributes + NUMA(attributes)) {
+        testPrintE("colorFract2Pixel unsupported format of: %u", format);
+        exit(80);
+    }
+
+    uint32_t pixel;
+    pixel = htonl((uint32_t) round((((1 << attrib->c1Size) - 1) * color.c1()))
+         << ((sizeof(pixel) * BITSPERBYTE)
+             - (attrib->c1Offset + attrib->c1Size)));
+    pixel |= htonl((uint32_t) round((((1 << attrib->c2Size) - 1) * color.c2()))
+         << ((sizeof(pixel) * BITSPERBYTE)
+             - (attrib->c2Offset + attrib->c2Size)));
+    pixel |= htonl((uint32_t) round((((1 << attrib->c3Size) - 1) * color.c3()))
+         << ((sizeof(pixel) * BITSPERBYTE)
+             - (attrib->c3Offset + attrib->c3Size)));
+    if (attrib->aSize) {
+        pixel |= htonl((uint32_t) round((((1 << attrib->aSize) - 1) * alpha))
+             << ((sizeof(pixel) * BITSPERBYTE)
+                 - (attrib->aOffset + attrib->aSize)));
+    }
+    if (attrib->hostByteOrder) {
+        pixel = ntohl(pixel);
+        pixel >>= sizeof(pixel) * BITSPERBYTE - attrib->bytes * BITSPERBYTE;
+    }
+
+    return pixel;
+}
+
+// Sets the pixel at the given x and y coordinates to the color and alpha
+// value given by pixel.  The contents of pixel is format specific.  It's
+// value should come from a call to hwcTestColor2Pixel().
+void hwcTestSetPixel(GraphicBuffer *gBuf, unsigned char *buf,
+              uint32_t x, uint32_t y, uint32_t pixel)
+{
+
+    const struct attrib {
+        int format;
+        size_t bytes;
+    } attributes[] = {
+        {HAL_PIXEL_FORMAT_RGBA_8888,  4},
+        {HAL_PIXEL_FORMAT_RGBX_8888,  4},
+        {HAL_PIXEL_FORMAT_RGB_888,    3},
+        {HAL_PIXEL_FORMAT_RGB_565,    2},
+        {HAL_PIXEL_FORMAT_BGRA_8888,  4},
+        {HAL_PIXEL_FORMAT_RGBA_5551,  2},
+        {HAL_PIXEL_FORMAT_RGBA_4444,  2},
+    };
+
+    if (gBuf->getPixelFormat() == HAL_PIXEL_FORMAT_YV12) {
+        uint32_t yPlaneOffset, uPlaneOffset, vPlaneOffset;
+        uint32_t yPlaneStride = gBuf->getStride();
+        uint32_t uPlaneStride = ((gBuf->getStride() / 2) + 0xf) & ~0xf;
+        uint32_t vPlaneStride = uPlaneStride;
+        yPlaneOffset = 0;
+        vPlaneOffset = yPlaneOffset + yPlaneStride * gBuf->getHeight();
+        uPlaneOffset = vPlaneOffset
+                       + vPlaneStride * (gBuf->getHeight() / 2);
+        *(buf + yPlaneOffset + y * yPlaneStride + x) = pixel & 0xff;
+        *(buf + uPlaneOffset + (y / 2) * uPlaneStride + (x / 2))
+            = (pixel & 0xff00) >> 8;
+        *(buf + vPlaneOffset + (y / 2) * vPlaneStride + (x / 2))
+            = (pixel & 0xff0000) >> 16;
+
+        return;
+    }
+
+    const struct attrib *attrib;
+    for (attrib = attributes; attrib < attributes + NUMA(attributes);
+         attrib++) {
+        if (attrib->format == gBuf->getPixelFormat()) { break; }
+    }
+    if (attrib >= attributes + NUMA(attributes)) {
+        testPrintE("setPixel unsupported format of: %u",
+                   gBuf->getPixelFormat());
+        exit(90);
+    }
+
+    memmove(buf + ((gBuf->getStride() * attrib->bytes) * y)
+            + (attrib->bytes * x), &pixel, attrib->bytes);
+}
+
+// Fill a given graphic buffer with a uniform color and alpha
+void hwcTestFillColor(GraphicBuffer *gBuf, ColorFract color, float alpha)
+{
+    unsigned char* buf = NULL;
+    status_t err;
+    uint32_t pixel;
+
+    pixel = hwcTestColor2Pixel(gBuf->getPixelFormat(), color, alpha);
+
+    err = gBuf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
+    if (err != 0) {
+        testPrintE("hwcTestFillColor lock failed: %d", err);
+        exit(100);
+    }
+
+    for (unsigned int x = 0; x < gBuf->getStride(); x++) {
+        for (unsigned int y = 0; y < gBuf->getHeight(); y++) {
+            uint32_t val = pixel;
+            hwcTestSetPixel(gBuf, buf, x, y, (x < gBuf->getWidth())
+                            ? pixel : testRand());
+        }
+    }
+
+    err = gBuf->unlock();
+    if (err != 0) {
+        testPrintE("hwcTestFillColor unlock failed: %d", err);
+        exit(101);
+    }
+}
+
+// Fill the given buffer with a horizontal blend of colors, with the left
+// side color given by startColor and the right side color given by
+// endColor.  The startColor and endColor values are specified in the format
+// given by colorFormat, which might be different from the format of the
+// graphic buffer.  When different, a color conversion is done when possible
+// to the graphic format of the graphic buffer.  A color of black is
+// produced for cases where the conversion is impossible (e.g. out of gamut
+// values).
+void hwcTestFillColorHBlend(GraphicBuffer *gBuf, uint32_t colorFormat,
+                            ColorFract startColor, ColorFract endColor)
+{
+    status_t err;
+    unsigned char* buf = NULL;
+    const uint32_t width = gBuf->getWidth();
+    const uint32_t height = gBuf->getHeight();
+    const uint32_t stride = gBuf->getStride();
+
+    err = gBuf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
+    if (err != 0) {
+        testPrintE("hwcTestFillColorHBlend lock failed: %d", err);
+        exit(110);
+    }
+
+    for (unsigned int x = 0; x < stride; x++) {
+        uint32_t pixel;
+        if (x < width) {
+            ColorFract color(startColor.c1() + (endColor.c1() - startColor.c1())
+                                 * ((float) x / (float) (width - 1)),
+                             startColor.c2() + (endColor.c2() - startColor.c2())
+                                 * ((float) x / (float) (width - 1)),
+                             startColor.c3() + (endColor.c3() - startColor.c3())
+                                 * ((float) x / (float) (width - 1)));
+
+            // When formats differ, convert colors.
+            // Important to not convert when formats are the same, since
+            // out of gamut colors are always converted to black.
+            if (colorFormat != (uint32_t) gBuf->getPixelFormat()) {
+                hwcTestColorConvert(colorFormat, gBuf->getPixelFormat(), color);
+            }
+            pixel = hwcTestColor2Pixel(gBuf->getPixelFormat(), color, 1.0);
+        } else {
+            // Fill pad with random values
+            pixel = testRand();
+        }
+
+        for (unsigned int y = 0; y <= height; y++) {
+            hwcTestSetPixel(gBuf, buf, x, y, pixel);
+        }
+    }
+
+    err = gBuf->unlock();
+    if (err != 0) {
+        testPrintE("hwcTestFillColorHBlend unlock failed: %d", err);
+        exit(111);
+    }
+}
+
+/*
+ * When possible, converts color specified as a full range value in
+ * the fromFormat, into an equivalent full range color in the toFormat.
+ * When conversion is impossible (e.g. out of gamut color) a color
+ * or black in the full range output format is produced.  The input
+ * color is given as a fractional color in the parameter named color.
+ * The produced color is written over the same parameter used to
+ * provide the input color.
+ *
+ * Each graphic format has 3 color components and each of these
+ * components has both a full and in gamut range.  This function uses
+ * a table that provides the full and in gamut ranges of each of the
+ * supported graphic formats.  The full range is given by members named
+ * c[123]Min to c[123]Max, while the in gamut range is given by members
+ * named c[123]Low to c[123]High.  In most cases the full and in gamut
+ * ranges are equivalent.  This occurs when the c[123]Min == c[123]Low and
+ * c[123]High == c[123]Max.
+ *
+ * The input and produced colors are both specified as a fractional amount
+ * of the full range.  The diagram below provides an overview of the
+ * conversion process.  The main steps are:
+ *
+ *   1. Produce black if the input color is out of gamut.
+ *
+ *   2. Convert the in gamut color into the fraction of the fromFromat
+ *      in gamut range.
+ *
+ *   3. Convert from the fraction of the in gamut from format range to
+ *      the fraction of the in gamut to format range.  Produce black
+ *      if an equivalent color does not exists.
+ *
+ *   4. Covert from the fraction of the in gamut to format to the
+ *      fraction of the full range to format.
+ *
+ *       From Format                 To Format
+ *    max           high            high        max
+ *    ----+                 +-----------+
+ *    high \               /             \      high
+ *    ------\-------------+               +-------->
+ *           \
+ *            \                   +--- black --+
+ *             \                 /              \
+ *              \               /                +-->
+ *    low        \             /                  low
+ *    -------- ---+-- black --+
+ *    min             low           low           min
+ *     ^               ^      ^      ^             ^
+ *     |               |      |      |             |
+ *     |               |      |      |             +-- fraction of full range
+ *     |               |      |      +-- fraction of valid range
+ *     |               |      +-- fromFormat to toFormat color conversion
+ *     |               +-- fraction of valid range
+ *     +-- fraction of full range
+ */
+void hwcTestColorConvert(uint32_t fromFormat, uint32_t toFormat,
+                  ColorFract& color)
+{
+    const struct attrib {
+        uint32_t     format;
+        bool         rgb;
+        bool         yuv;
+        int          c1Min, c1Low, c1High, c1Max;
+        int          c2Min, c2Low, c2High, c2Max;
+        int          c3Min, c3Low, c3High, c3Max;
+    } attributes[] = {
+        {HAL_PIXEL_FORMAT_RGBA_8888, true,  false,
+         0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255},
+        {HAL_PIXEL_FORMAT_RGBX_8888, true,  false,
+         0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255},
+        {HAL_PIXEL_FORMAT_RGB_888,   true,  false,
+         0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255},
+        {HAL_PIXEL_FORMAT_RGB_565,   true,  false,
+         0, 0, 31, 31, 0, 0, 63, 63, 0, 0, 31, 31},
+        {HAL_PIXEL_FORMAT_BGRA_8888, true,  false,
+         0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 255},
+        {HAL_PIXEL_FORMAT_RGBA_5551, true,  false,
+         0, 0, 31, 31, 0, 0, 31, 31, 0, 0, 31, 31},
+        {HAL_PIXEL_FORMAT_RGBA_4444, true,  false,
+         0, 0, 15, 15, 0, 0, 15, 15, 0, 0, 15, 15},
+        {HAL_PIXEL_FORMAT_YV12,      false, true,
+         0, 16, 235, 255, 0, 16, 240, 255, 0, 16, 240, 255},
+    };
+
+    const struct attrib *fromAttrib;
+    for (fromAttrib = attributes; fromAttrib < attributes + NUMA(attributes);
+         fromAttrib++) {
+        if (fromAttrib->format == fromFormat) { break; }
+    }
+    if (fromAttrib >= attributes + NUMA(attributes)) {
+        testPrintE("hwcTestColorConvert unsupported from format of: %u",
+                   fromFormat);
+        exit(120);
+    }
+
+    const struct attrib *toAttrib;
+    for (toAttrib = attributes; toAttrib < attributes + NUMA(attributes);
+         toAttrib++) {
+        if (toAttrib->format == toFormat) { break; }
+    }
+    if (toAttrib >= attributes + NUMA(attributes)) {
+        testPrintE("hwcTestColorConvert unsupported to format of: %u",
+                   toFormat);
+        exit(121);
+    }
+
+    // Produce black if any of the from components are outside the
+    // valid color range
+    float c1Val = fromAttrib->c1Min
+        + ((float) (fromAttrib->c1Max - fromAttrib->c1Min) * color.c1());
+    float c2Val = fromAttrib->c2Min
+        + ((float) (fromAttrib->c2Max - fromAttrib->c2Min) * color.c2());
+    float c3Val = fromAttrib->c3Min
+        + ((float) (fromAttrib->c3Max - fromAttrib->c3Min) * color.c3());
+    if ((c1Val < fromAttrib->c1Low) || (c1Val > fromAttrib->c1High)
+        || (c2Val < fromAttrib->c2Low) || (c2Val > fromAttrib->c2High)
+        || (c3Val < fromAttrib->c3Low) || (c3Val > fromAttrib->c3High)) {
+
+        // Return black
+        // Will use representation of black from RGBA8888 graphic format
+        // and recursively convert it to the requested graphic format.
+        color = ColorFract(0.0, 0.0, 0.0);
+        hwcTestColorConvert(HAL_PIXEL_FORMAT_RGBA_8888, toFormat, color);
+        return;
+    }
+
+    // Within from format, convert from fraction of full range
+    // to fraction of valid range
+    color = ColorFract((c1Val - fromAttrib->c1Low)
+                           / (fromAttrib->c1High - fromAttrib->c1Low),
+                       (c2Val - fromAttrib->c2Low)
+                           / (fromAttrib->c2High - fromAttrib->c2Low),
+                       (c3Val - fromAttrib->c3Low)
+                           / (fromAttrib->c3High - fromAttrib->c3Low));
+
+    // If needed perform RGB to YUV conversion
+    float wr = 0.2126, wg = 0.7152, wb = 0.0722; // ITU709 recommended constants
+    if (fromAttrib->rgb && toAttrib->yuv) {
+        float r = color.c1(), g = color.c2(), b = color.c3();
+        float y = wr * r + wg * g + wb * b;
+        float u = 0.5 * ((b - y) / (1.0 - wb)) + 0.5;
+        float v = 0.5 * ((r - y) / (1.0 - wr)) + 0.5;
+
+        // Produce black if color is outside the YUV gamut
+        if ((y < 0.0) || (y > 1.0)
+            || (u < 0.0) || (u > 1.0)
+            || (v < 0.0) || (v > 1.0)) {
+            y = 0.0;
+            u = v = 0.5;
+        }
+
+        color = ColorFract(y, u, v);
+    }
+
+    // If needed perform YUV to RGB conversion
+    // Equations determined from the ITU709 equations for RGB to YUV
+    // conversion, plus the following algebra:
+    //
+    //   u = 0.5 * ((b - y) / (1.0 - wb)) + 0.5
+    //   0.5 * ((b - y) / (1.0 - wb)) = u - 0.5
+    //   (b - y) / (1.0 - wb) = 2 * (u - 0.5)
+    //   b - y = 2 * (u - 0.5) * (1.0 - wb)
+    //   b = 2 * (u - 0.5) * (1.0 - wb) + y
+    //
+    //   v = 0.5 * ((r -y) / (1.0 - wr)) + 0.5
+    //   0.5 * ((r - y) / (1.0 - wr)) = v - 0.5
+    //   (r - y) / (1.0 - wr) = 2 * (v - 0.5)
+    //   r - y = 2 * (v - 0.5) * (1.0 - wr)
+    //   r = 2 * (v - 0.5) * (1.0 - wr) + y
+    //
+    //   y = wr * r + wg * g + wb * b
+    //   wr * r + wg * g + wb * b = y
+    //   wg * g = y - wr * r - wb * b
+    //   g = (y - wr * r - wb * b) / wg
+    if (fromAttrib->yuv && toAttrib->rgb) {
+        float y = color.c1(), u = color.c2(), v = color.c3();
+        float r = 2.0 * (v - 0.5) * (1.0 - wr) + y;
+        float b = 2.0 * (u - 0.5) * (1.0 - wb) + y;
+        float g = (y - wr * r - wb * b) / wg;
+
+        // Produce black if color is outside the RGB gamut
+        if ((r < 0.0) || (r > 1.0)
+            || (g < 0.0) || (g > 1.0)
+            || (b < 0.0) || (b > 1.0)) {
+            r = g = b = 0.0;
+        }
+
+        color = ColorFract(r, g, b);
+    }
+
+    // Within to format, convert from fraction of valid range
+    // to fraction of full range
+    c1Val = (toAttrib->c1Low
+        + (float) (toAttrib->c1High - toAttrib->c1Low) * color.c1());
+    c2Val = (toAttrib->c1Low
+        + (float) (toAttrib->c2High - toAttrib->c2Low) * color.c2());
+    c3Val = (toAttrib->c1Low
+        + (float) (toAttrib->c3High - toAttrib->c3Low) * color.c3());
+    color = ColorFract((float) (c1Val - toAttrib->c1Min)
+                           / (float) (toAttrib->c1Max - toAttrib->c1Min),
+                       (float) (c2Val - toAttrib->c2Min)
+                           / (float) (toAttrib->c2Max - toAttrib->c2Min),
+                       (float) (c3Val - toAttrib->c3Min)
+                           / (float) (toAttrib->c3Max - toAttrib->c3Min));
+}
+
+// TODO: Use PrintGLString, CechckGlError, and PrintEGLConfiguration
+//       from libglTest
+static void printGLString(const char *name, GLenum s)
+{
+    const char *v = (const char *) glGetString(s);
+
+    if (v == NULL) {
+        testPrintI("GL %s unknown", name);
+    } else {
+        testPrintI("GL %s = %s", name, v);
+    }
+}
+
+static void checkEglError(const char* op, EGLBoolean returnVal)
+{
+    if (returnVal != EGL_TRUE) {
+        testPrintE("%s() returned %d", op, returnVal);
+    }
+
+    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
+            = eglGetError()) {
+        testPrintE("after %s() eglError %s (0x%x)",
+                   op, EGLUtils::strerror(error), error);
+    }
+}
+
+static void checkGlError(const char* op)
+{
+    for (GLint error = glGetError(); error; error
+            = glGetError()) {
+        testPrintE("after %s() glError (0x%x)", op, error);
+    }
+}
+
+static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config)
+{
+
+#define X(VAL) {VAL, #VAL}
+    struct {EGLint attribute; const char* name;} names[] = {
+    X(EGL_BUFFER_SIZE),
+    X(EGL_ALPHA_SIZE),
+    X(EGL_BLUE_SIZE),
+    X(EGL_GREEN_SIZE),
+    X(EGL_RED_SIZE),
+    X(EGL_DEPTH_SIZE),
+    X(EGL_STENCIL_SIZE),
+    X(EGL_CONFIG_CAVEAT),
+    X(EGL_CONFIG_ID),
+    X(EGL_LEVEL),
+    X(EGL_MAX_PBUFFER_HEIGHT),
+    X(EGL_MAX_PBUFFER_PIXELS),
+    X(EGL_MAX_PBUFFER_WIDTH),
+    X(EGL_NATIVE_RENDERABLE),
+    X(EGL_NATIVE_VISUAL_ID),
+    X(EGL_NATIVE_VISUAL_TYPE),
+    X(EGL_SAMPLES),
+    X(EGL_SAMPLE_BUFFERS),
+    X(EGL_SURFACE_TYPE),
+    X(EGL_TRANSPARENT_TYPE),
+    X(EGL_TRANSPARENT_RED_VALUE),
+    X(EGL_TRANSPARENT_GREEN_VALUE),
+    X(EGL_TRANSPARENT_BLUE_VALUE),
+    X(EGL_BIND_TO_TEXTURE_RGB),
+    X(EGL_BIND_TO_TEXTURE_RGBA),
+    X(EGL_MIN_SWAP_INTERVAL),
+    X(EGL_MAX_SWAP_INTERVAL),
+    X(EGL_LUMINANCE_SIZE),
+    X(EGL_ALPHA_MASK_SIZE),
+    X(EGL_COLOR_BUFFER_TYPE),
+    X(EGL_RENDERABLE_TYPE),
+    X(EGL_CONFORMANT),
+   };
+#undef X
+
+    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
+        EGLint value = -1;
+        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute,
+                                              &value);
+        EGLint error = eglGetError();
+        if (returnVal && error == EGL_SUCCESS) {
+            testPrintI(" %s: %d (%#x)", names[j].name, value, value);
+        }
+    }
+    testPrintI("");
+}
diff --git a/opengl/tests/hwc/hwcTestLib.h b/opengl/tests/hwc/hwcTestLib.h
new file mode 100644
index 0000000..e19e163
--- /dev/null
+++ b/opengl/tests/hwc/hwcTestLib.h
@@ -0,0 +1,133 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Hardware Composer Test Library Header
+ */
+
+#include <sstream>
+#include <string>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/EGLUtils.h>
+
+#include <utils/Log.h>
+#include <testUtil.h>
+
+#include <hardware/hwcomposer.h>
+
+// Characteristics of known graphic formats
+const struct hwcTestGraphicFormat {
+    uint32_t format;
+    const char *desc;
+    uint32_t wMod, hMod; // Width/height mod this value must equal zero
+} hwcTestGraphicFormat[] = {
+    {HAL_PIXEL_FORMAT_RGBA_8888, "RGBA8888", 1, 1},
+    {HAL_PIXEL_FORMAT_RGBX_8888, "RGBX8888", 1, 1},
+    {HAL_PIXEL_FORMAT_RGB_888,   "RGB888",   1, 1},
+    {HAL_PIXEL_FORMAT_RGB_565,   "RGB565",   1, 1},
+    {HAL_PIXEL_FORMAT_BGRA_8888, "BGRA8888", 1, 1},
+    {HAL_PIXEL_FORMAT_RGBA_5551, "RGBA5551", 1, 1},
+    {HAL_PIXEL_FORMAT_RGBA_4444, "RGBA4444", 1, 1},
+    {HAL_PIXEL_FORMAT_YV12,      "YV12",     2, 2},
+};
+
+// Represent RGB color as fraction of color components.
+// Each of the color components are expected in the range [0.0, 1.0]
+class ColorFract {
+  public:
+    ColorFract(): _c1(0.0), _c2(0.0), _c3(0.0) {};
+    ColorFract(float c1, float c2, float c3): _c1(c1), _c2(c2), _c3(c3) {};
+    float c1(void) const { return _c1; }
+    float c2(void) const { return _c2; }
+    float c3(void) const { return _c3; }
+
+    operator std::string();
+
+  private:
+    float _c1;
+    float _c2;
+    float _c3;
+};
+
+// Represent RGB color as fraction of color components.
+// Each of the color components are expected in the range [0.0, 1.0]
+class ColorRGB {
+  public:
+    ColorRGB(): _r(0.0), _g(0.0), _b(0.0) {};
+    ColorRGB(float f): _r(f), _g(f), _b(f) {}; // Gray
+    ColorRGB(float r, float g, float b): _r(r), _g(g), _b(b) {};
+    float r(void) const { return _r; }
+    float g(void) const { return _g; }
+    float b(void) const { return _b; }
+
+  private:
+    float _r;
+    float _g;
+    float _b;
+};
+
+// Dimension - width and height of a rectanguler area
+class HwcTestDim {
+  public:
+    HwcTestDim(): _w(0), _h(0) {};
+    HwcTestDim(uint32_t w, uint32_t h) : _w(w), _h(h) {}
+    uint32_t width(void) const { return _w; }
+    uint32_t height(void) const { return _h; }
+    void setWidth(uint32_t w) { _w = w; }
+    void setHeight(uint32_t h) { _h = h; }
+
+    operator std::string();
+
+  private:
+    uint32_t _w;
+    uint32_t _h;
+};
+
+// Function Prototypes
+void hwcTestInitDisplay(bool verbose, EGLDisplay *dpy, EGLSurface *surface,
+    EGLint *width, EGLint *height);
+void hwcTestOpenHwc(hwc_composer_device_t **hwcDevicePtr);
+const struct hwcTestGraphicFormat *hwcTestGraphicFormatLookup(const char *desc);
+const char *hwcTestGraphicFormat2str(uint32_t format);
+std::string hwcTestRect2str(const struct hwc_rect& rect);
+
+hwc_layer_list_t *hwcTestCreateLayerList(size_t numLayers);
+void hwcTestFreeLayerList(hwc_layer_list_t *list);
+void hwcTestDisplayList(hwc_layer_list_t *list);
+void hwcTestDisplayListPrepareModifiable(hwc_layer_list_t *list);
+void hwcTestDisplayListHandles(hwc_layer_list_t *list);
+
+uint32_t hwcTestColor2Pixel(uint32_t format, ColorFract color, float alpha);
+void hwcTestColorConvert(uint32_t fromFormat, uint32_t toFormat,
+                  ColorFract& color);
+void hwcTestSetPixel(android::GraphicBuffer *gBuf, unsigned char *buf,
+                     uint32_t x, uint32_t y, uint32_t pixel);
+void hwcTestFillColor(android::GraphicBuffer *gBuf, ColorFract color,
+                      float alpha);
+void hwcTestFillColorHBlend(android::GraphicBuffer *gBuf,
+                            uint32_t colorFormat,
+                            ColorFract startColor, ColorFract endColor);
+ColorFract hwcTestParseColor(std::istringstream& in, bool& error);
+struct hwc_rect hwcTestParseHwcRect(std::istringstream& in, bool& error);
+HwcTestDim hwcTestParseDim(std::istringstream& in, bool& error);
diff --git a/opengl/tests/hwc/hwc_stress.cpp b/opengl/tests/hwc/hwc_stress.cpp
deleted file mode 100644
index 580eb83..0000000
--- a/opengl/tests/hwc/hwc_stress.cpp
+++ /dev/null
@@ -1,1262 +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.
- *
- */
-
-/*
- * Hardware Composer stress test
- *
- * Performs a pseudo-random (prandom) sequence of operations to the
- * Hardware Composer (HWC), for a specified number of passes or for
- * a specified period of time.  By default the period of time is FLT_MAX,
- * so that the number of passes will take precedence.
- *
- * The passes are grouped together, where (pass / passesPerGroup) specifies
- * which group a particular pass is in.  This causes every passesPerGroup
- * worth of sequential passes to be within the same group.  Computationally
- * intensive operations are performed just once at the beginning of a group
- * of passes and then used by all the passes in that group.  This is done
- * so as to increase both the average and peak rate of graphic operations,
- * by moving computationally intensive operations to the beginning of a group.
- * In particular, at the start of each group of passes a set of
- * graphic buffers are created, then used by the first and remaining
- * passes of that group of passes.
- *
- * The per-group initialization of the graphic buffers is performed
- * by a function called initFrames.  This function creates an array
- * of smart pointers to the graphic buffers, in the form of a vector
- * of vectors.  The array is accessed in row major order, so each
- * row is a vector of smart pointers.  All the pointers of a single
- * row point to graphic buffers which use the same pixel format and
- * have the same dimension, although it is likely that each one is
- * filled with a different color.  This is done so that after doing
- * the first HWC prepare then set call, subsequent set calls can
- * be made with each of the layer handles changed to a different
- * graphic buffer within the same row.  Since the graphic buffers
- * in a particular row have the same pixel format and dimension,
- * additional HWC set calls can be made, without having to perform
- * an HWC prepare call.
- *
- * This test supports the following command-line options:
- *
- *   -v        Verbose
- *   -s num    Starting pass
- *   -e num    Ending pass
- *   -p num    Execute the single pass specified by num
- *   -n num    Number of set operations to perform after each prepare operation
- *   -t float  Maximum time in seconds to execute the test
- *   -d float  Delay in seconds performed after each set operation
- *   -D float  Delay in seconds performed after the last pass is executed
- *
- * Typically the test is executed for a large range of passes.  By default
- * passes 0 through 99999 (100,000 passes) are executed.  Although this test
- * does not validate the generated image, at times it is useful to reexecute
- * a particular pass and leave the displayed image on the screen for an
- * extended period of time.  This can be done either by setting the -s
- * and -e options to the desired pass, along with a large value for -D.
- * This can also be done via the -p option, again with a large value for
- * the -D options.
- *
- * So far this test only contains code to create graphic buffers with
- * a continuous solid color.  Although this test is unable to validate the
- * image produced, any image that contains other than rectangles of a solid
- * color are incorrect.  Note that the rectangles may use a transparent
- * color and have a blending operation that causes the color in overlapping
- * rectangles to be mixed.  In such cases the overlapping portions may have
- * a different color from the rest of the rectangle.
- */
-
-#include <algorithm>
-#include <assert.h>
-#include <cerrno>
-#include <cmath>
-#include <cstdlib>
-#include <ctime>
-#include <libgen.h>
-#include <sched.h>
-#include <sstream>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-#include <vector>
-
-#include <arpa/inet.h> // For ntohl() and htonl()
-
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
-
-#include <ui/FramebufferNativeWindow.h>
-#include <ui/GraphicBuffer.h>
-#include <ui/EGLUtils.h>
-
-#define LOG_TAG "hwcStressTest"
-#include <utils/Log.h>
-#include <testUtil.h>
-
-#include <hardware/hwcomposer.h>
-
-using namespace std;
-using namespace android;
-
-const float maxSizeRatio = 1.3;  // Graphic buffers can be upto this munch
-                                 // larger than the default screen size
-const unsigned int passesPerGroup = 10; // A group of passes all use the same
-                                        // graphic buffers
-
-// Ratios at which rare and frequent conditions should be produced
-const float rareRatio = 0.1;
-const float freqRatio = 0.9;
-
-// Defaults for command-line options
-const bool defaultVerbose = false;
-const unsigned int defaultStartPass = 0;
-const unsigned int defaultEndPass = 99999;
-const unsigned int defaultPerPassNumSet = 10;
-const float defaultPerSetDelay = 0.0; // Default delay after each set
-                                      // operation.  Default delay of
-                                      // zero used so as to perform the
-                                      // the set operations as quickly
-                                      // as possible.
-const float defaultEndDelay = 2.0; // Default delay between completion of
-                                   // final pass and restart of framework
-const float defaultDuration = FLT_MAX; // A fairly long time, so that
-                                       // range of passes will have
-                                       // precedence
-
-// Command-line option settings
-static bool verbose = defaultVerbose;
-static unsigned int startPass = defaultStartPass;
-static unsigned int endPass = defaultEndPass;
-static unsigned int numSet = defaultPerPassNumSet;
-static float perSetDelay = defaultPerSetDelay;
-static float endDelay = defaultEndDelay;
-static float duration = defaultDuration;
-
-// Command-line mutual exclusion detection flags.
-// Corresponding flag set true once an option is used.
-bool eFlag, sFlag, pFlag;
-
-#define MAXSTR               100
-#define MAXCMD               200
-#define BITSPERBYTE            8 // TODO: Obtain from <values.h>, once
-                                 // it has been added
-
-#define CMD_STOP_FRAMEWORK   "stop 2>&1"
-#define CMD_START_FRAMEWORK  "start 2>&1"
-
-#define NUMA(a) (sizeof(a) / sizeof(a [0]))
-#define MEMCLR(addr, size) do { \
-        memset((addr), 0, (size)); \
-    } while (0)
-
-// Represent RGB color as fraction of color components.
-// Each of the color components are expected in the range [0.0, 1.0]
-class RGBColor {
-  public:
-    RGBColor(): _r(0.0), _g(0.0), _b(0.0) {};
-    RGBColor(float f): _r(f), _g(f), _b(f) {}; // Gray
-    RGBColor(float r, float g, float b): _r(r), _g(g), _b(b) {};
-    float r(void) const { return _r; }
-    float g(void) const { return _g; }
-    float b(void) const { return _b; }
-
-  private:
-    float _r;
-    float _g;
-    float _b;
-};
-
-// Represent YUV color as fraction of color components.
-// Each of the color components are expected in the range [0.0, 1.0]
-class YUVColor {
-  public:
-    YUVColor(): _y(0.0), _u(0.0), _v(0.0) {};
-    YUVColor(float f): _y(f), _u(0.0), _v(0.0) {}; // Gray
-    YUVColor(float y, float u, float v): _y(y), _u(u), _v(v) {};
-    float y(void) const { return _y; }
-    float u(void) const { return _u; }
-    float v(void) const { return _v; }
-
-  private:
-    float _y;
-    float _u;
-    float _v;
-};
-
-// File scope constants
-static const struct graphicFormat {
-    unsigned int format;
-    const char *desc;
-    unsigned int wMod, hMod; // Width/height mod this value must equal zero
-} graphicFormat[] = {
-    {HAL_PIXEL_FORMAT_RGBA_8888, "RGBA8888", 1, 1},
-    {HAL_PIXEL_FORMAT_RGBX_8888, "RGBX8888", 1, 1},
-    {HAL_PIXEL_FORMAT_RGB_888, "RGB888", 1, 1},
-    {HAL_PIXEL_FORMAT_RGB_565, "RGB565", 1, 1},
-    {HAL_PIXEL_FORMAT_BGRA_8888, "BGRA8888", 1, 1},
-    {HAL_PIXEL_FORMAT_RGBA_5551, "RGBA5551", 1, 1},
-    {HAL_PIXEL_FORMAT_RGBA_4444, "RGBA4444", 1, 1},
-    {HAL_PIXEL_FORMAT_YV12, "YV12", 2, 2},
-};
-const unsigned int blendingOps[] = {
-    HWC_BLENDING_NONE,
-    HWC_BLENDING_PREMULT,
-    HWC_BLENDING_COVERAGE,
-};
-const unsigned int layerFlags[] = {
-    HWC_SKIP_LAYER,
-};
-const vector<unsigned int> vecLayerFlags(layerFlags,
-    layerFlags + NUMA(layerFlags));
-
-const unsigned int transformFlags[] = {
-    HWC_TRANSFORM_FLIP_H,
-    HWC_TRANSFORM_FLIP_V,
-    HWC_TRANSFORM_ROT_90,
-    // ROT_180 & ROT_270 intentionally not listed, because they
-    // they are formed from combinations of the flags already listed.
-};
-const vector<unsigned int> vecTransformFlags(transformFlags,
-    transformFlags + NUMA(transformFlags));
-
-// File scope globals
-static const int texUsage = GraphicBuffer::USAGE_HW_TEXTURE |
-        GraphicBuffer::USAGE_SW_WRITE_RARELY;
-static hw_module_t const *hwcModule;
-static hwc_composer_device_t *hwcDevice;
-static vector <vector <sp<GraphicBuffer> > > frames;
-static EGLDisplay dpy;
-static EGLContext context;
-static EGLSurface surface;
-static EGLint width, height;
-
-// File scope prototypes
-static void execCmd(const char *cmd);
-static void checkEglError(const char* op, EGLBoolean returnVal = EGL_TRUE);
-static void checkGlError(const char* op);
-static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config);
-static void printGLString(const char *name, GLenum s);
-static hwc_layer_list_t *createLayerList(size_t numLayers);
-static void freeLayerList(hwc_layer_list_t *list);
-static void fillColor(GraphicBuffer *gBuf, RGBColor color, float trans);
-static void fillColor(GraphicBuffer *gBuf, YUVColor color, float trans);
-void init(void);
-void initFrames(unsigned int seed);
-void displayList(hwc_layer_list_t *list);
-void displayListPrepareModifiable(hwc_layer_list_t *list);
-void displayListHandles(hwc_layer_list_t *list);
-const char *graphicFormat2str(unsigned int format);
-template <class T> vector<T> vectorRandSelect(const vector<T>& vec, size_t num);
-template <class T> T vectorOr(const vector<T>& vec);
-
-/*
- * Main
- *
- * Performs the following high-level sequence of operations:
- *
- *   1. Command-line parsing
- *
- *   2. Initialization
- *
- *   3. For each pass:
- *
- *        a. If pass is first pass or in a different group from the
- *           previous pass, initialize the array of graphic buffers.
- *
- *        b. Create a HWC list with room to specify a prandomly
- *           selected number of layers.
- *
- *        c. Select a subset of the rows from the graphic buffer array,
- *           such that there is a unique row to be used for each
- *           of the layers in the HWC list.
- *
- *        d. Prandomly fill in the HWC list with handles
- *           selected from any of the columns of the selected row.
- *
- *        e. Pass the populated list to the HWC prepare call.
- *
- *        f. Pass the populated list to the HWC set call.
- *
- *        g. If additional set calls are to be made, then for each
- *           additional set call, select a new set of handles and
- *           perform the set call.
- */
-int
-main(int argc, char *argv[])
-{
-    int rv, opt;
-    char *chptr;
-    unsigned int pass;
-    char cmd[MAXCMD];
-    struct timeval startTime, currentTime, delta;
-
-    testSetLogCatTag(LOG_TAG);
-
-    // Parse command line arguments
-    while ((opt = getopt(argc, argv, "vp:d:D:n:s:e:t:?h")) != -1) {
-        switch (opt) {
-          case 'd': // Delay after each set operation
-            perSetDelay = strtod(optarg, &chptr);
-            if ((*chptr != '\0') || (perSetDelay < 0.0)) {
-                testPrintE("Invalid command-line specified per pass delay of: "
-                           "%s", optarg);
-                exit(1);
-            }
-            break;
-
-          case 'D': // End of test delay
-                    // Delay between completion of final pass and restart
-                    // of framework
-            endDelay = strtod(optarg, &chptr);
-            if ((*chptr != '\0') || (endDelay < 0.0)) {
-                testPrintE("Invalid command-line specified end of test delay "
-                           "of: %s", optarg);
-                exit(2);
-            }
-            break;
-
-          case 't': // Duration
-            duration = strtod(optarg, &chptr);
-            if ((*chptr != '\0') || (duration < 0.0)) {
-                testPrintE("Invalid command-line specified duration of: %s",
-                           optarg);
-                exit(3);
-            }
-            break;
-
-          case 'n': // Num set operations per pass
-            numSet = strtoul(optarg, &chptr, 10);
-            if (*chptr != '\0') {
-                testPrintE("Invalid command-line specified num set per pass "
-                           "of: %s", optarg);
-                exit(4);
-            }
-            break;
-
-          case 's': // Starting Pass
-            sFlag = true;
-            if (pFlag) {
-                testPrintE("Invalid combination of command-line options.");
-                testPrintE("  The -p option is mutually exclusive from the");
-                testPrintE("  -s and -e options.");
-                exit(5);
-            }
-            startPass = strtoul(optarg, &chptr, 10);
-            if (*chptr != '\0') {
-                testPrintE("Invalid command-line specified starting pass "
-                           "of: %s", optarg);
-                exit(6);
-            }
-            break;
-
-          case 'e': // Ending Pass
-            eFlag = true;
-            if (pFlag) {
-                testPrintE("Invalid combination of command-line options.");
-                testPrintE("  The -p option is mutually exclusive from the");
-                testPrintE("  -s and -e options.");
-                exit(7);
-            }
-            endPass = strtoul(optarg, &chptr, 10);
-            if (*chptr != '\0') {
-                testPrintE("Invalid command-line specified ending pass "
-                           "of: %s", optarg);
-                exit(8);
-            }
-            break;
-
-          case 'p': // Run a single specified pass
-            pFlag = true;
-            if (sFlag || eFlag) {
-                testPrintE("Invalid combination of command-line options.");
-                testPrintE("  The -p option is mutually exclusive from the");
-                testPrintE("  -s and -e options.");
-                exit(9);
-            }
-            startPass = endPass = strtoul(optarg, &chptr, 10);
-            if (*chptr != '\0') {
-                testPrintE("Invalid command-line specified pass of: %s",
-                           optarg);
-                exit(10);
-            }
-            break;
-
-          case 'v': // Verbose
-            verbose = true;
-            break;
-
-          case 'h': // Help
-          case '?':
-          default:
-            testPrintE("  %s [options]", basename(argv[0]));
-            testPrintE("    options:");
-            testPrintE("      -p Execute specified pass");
-            testPrintE("      -s Starting pass");
-            testPrintE("      -e Ending pass");
-            testPrintE("      -t Duration");
-            testPrintE("      -d Delay after each set operation");
-            testPrintE("      -D End of test delay");
-            testPrintE("      -n Num set operations per pass");
-            testPrintE("      -v Verbose");
-            exit(((optopt == 0) || (optopt == '?')) ? 0 : 11);
-        }
-    }
-    if (endPass < startPass) {
-        testPrintE("Unexpected ending pass before starting pass");
-        testPrintE("  startPass: %u endPass: %u", startPass, endPass);
-        exit(12);
-    }
-    if (argc != optind) {
-        testPrintE("Unexpected command-line postional argument");
-        testPrintE("  %s [-s start_pass] [-e end_pass] [-t duration]",
-            basename(argv[0]));
-        exit(13);
-    }
-    testPrintI("duration: %g", duration);
-    testPrintI("startPass: %u", startPass);
-    testPrintI("endPass: %u", endPass);
-    testPrintI("numSet: %u", numSet);
-
-    // Stop framework
-    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_STOP_FRAMEWORK);
-    if (rv >= (signed) sizeof(cmd) - 1) {
-        testPrintE("Command too long for: %s", CMD_STOP_FRAMEWORK);
-        exit(14);
-    }
-    execCmd(cmd);
-    testDelay(1.0); // TODO - needs means to query whether asyncronous stop
-                    // framework operation has completed.  For now, just wait
-                    // a long time.
-
-    init();
-
-    // For each pass
-    gettimeofday(&startTime, NULL);
-    for (pass = startPass; pass <= endPass; pass++) {
-        // Stop if duration of work has already been performed
-        gettimeofday(&currentTime, NULL);
-        delta = tvDelta(&startTime, &currentTime);
-        if (tv2double(&delta) > duration) { break; }
-
-        // Regenerate a new set of test frames when this pass is
-        // either the first pass or is in a different group then
-        // the previous pass.  A group of passes are passes that
-        // all have the same quotient when their pass number is
-        // divided by passesPerGroup.
-        if ((pass == startPass)
-            || ((pass / passesPerGroup) != ((pass - 1) / passesPerGroup))) {
-            initFrames(pass / passesPerGroup);
-        }
-
-        testPrintI("==== Starting pass: %u", pass);
-
-        // Cause deterministic sequence of prandom numbers to be
-        // generated for this pass.
-        srand48(pass);
-
-        hwc_layer_list_t *list;
-        list = createLayerList(testRandMod(frames.size()) + 1);
-        if (list == NULL) {
-            testPrintE("createLayerList failed");
-            exit(20);
-        }
-
-        // Prandomly select a subset of frames to be used by this pass.
-        vector <vector <sp<GraphicBuffer> > > selectedFrames;
-        selectedFrames = vectorRandSelect(frames, list->numHwLayers);
-
-        // Any transform tends to create a layer that the hardware
-        // composer is unable to support and thus has to leave for
-        // SurfaceFlinger.  Place heavy bias on specifying no transforms.
-        bool noTransform = testRandFract() > rareRatio;
-
-        for (unsigned int n1 = 0; n1 < list->numHwLayers; n1++) {
-            unsigned int idx = testRandMod(selectedFrames[n1].size());
-            sp<GraphicBuffer> gBuf = selectedFrames[n1][idx];
-            hwc_layer_t *layer = &list->hwLayers[n1];
-            layer->handle = gBuf->handle;
-
-            layer->blending = blendingOps[testRandMod(NUMA(blendingOps))];
-            layer->flags = (testRandFract() > rareRatio) ? 0
-                : vectorOr(vectorRandSelect(vecLayerFlags,
-                           testRandMod(vecLayerFlags.size() + 1)));
-            layer->transform = (noTransform || testRandFract() > rareRatio) ? 0
-                : vectorOr(vectorRandSelect(vecTransformFlags,
-                           testRandMod(vecTransformFlags.size() + 1)));
-            layer->sourceCrop.left = testRandMod(gBuf->getWidth());
-            layer->sourceCrop.top = testRandMod(gBuf->getHeight());
-            layer->sourceCrop.right = layer->sourceCrop.left
-                + testRandMod(gBuf->getWidth() - layer->sourceCrop.left) + 1;
-            layer->sourceCrop.bottom = layer->sourceCrop.top
-                + testRandMod(gBuf->getHeight() - layer->sourceCrop.top) + 1;
-            layer->displayFrame.left = testRandMod(width);
-            layer->displayFrame.top = testRandMod(height);
-            layer->displayFrame.right = layer->displayFrame.left
-                + testRandMod(width - layer->displayFrame.left) + 1;
-            layer->displayFrame.bottom = layer->displayFrame.top
-                + testRandMod(height - layer->displayFrame.top) + 1;
-
-            // Increase the frequency that a scale factor of 1.0 from
-            // the sourceCrop to displayFrame occurs.  This is the
-            // most common scale factor used by applications and would
-            // be rarely produced by this stress test without this
-            // logic.
-            if (testRandFract() <= freqRatio) {
-                // Only change to scale factor to 1.0 if both the
-                // width and height will fit.
-                int sourceWidth = layer->sourceCrop.right
-                                  - layer->sourceCrop.left;
-                int sourceHeight = layer->sourceCrop.bottom
-                                   - layer->sourceCrop.top;
-                if (((layer->displayFrame.left + sourceWidth) <= width)
-                    && ((layer->displayFrame.top + sourceHeight) <= height)) {
-                    layer->displayFrame.right = layer->displayFrame.left
-                                                + sourceWidth;
-                    layer->displayFrame.bottom = layer->displayFrame.top
-                                                 + sourceHeight;
-                }
-            }
-
-            layer->visibleRegionScreen.numRects = 1;
-            layer->visibleRegionScreen.rects = &layer->displayFrame;
-        }
-
-        // Perform prepare operation
-        if (verbose) { testPrintI("Prepare:"); displayList(list); }
-        hwcDevice->prepare(hwcDevice, list);
-        if (verbose) {
-            testPrintI("Post Prepare:");
-            displayListPrepareModifiable(list);
-        }
-
-        // Turn off the geometry changed flag
-        list->flags &= ~HWC_GEOMETRY_CHANGED;
-
-        // Perform the set operation(s)
-        if (verbose) {testPrintI("Set:"); }
-        for (unsigned int n1 = 0; n1 < numSet; n1++) {
-            if (verbose) {displayListHandles(list); }
-            hwcDevice->set(hwcDevice, dpy, surface, list);
-
-            // Prandomly select a new set of handles
-            for (unsigned int n1 = 0; n1 < list->numHwLayers; n1++) {
-                unsigned int idx = testRandMod(selectedFrames[n1].size());
-                sp<GraphicBuffer> gBuf = selectedFrames[n1][idx];
-                hwc_layer_t *layer = &list->hwLayers[n1];
-                layer->handle = (native_handle_t *) gBuf->handle;
-            }
-
-            testDelay(perSetDelay);
-        }
-
-
-        freeLayerList(list);
-        testPrintI("==== Completed pass: %u", pass);
-    }
-
-    testDelay(endDelay);
-
-    // Start framework
-    rv = snprintf(cmd, sizeof(cmd), "%s", CMD_START_FRAMEWORK);
-    if (rv >= (signed) sizeof(cmd) - 1) {
-        testPrintE("Command too long for: %s", CMD_START_FRAMEWORK);
-        exit(21);
-    }
-    execCmd(cmd);
-
-    testPrintI("Successfully completed %u passes", pass - startPass);
-
-    return 0;
-}
-
-/*
- * Execute Command
- *
- * Executes the command pointed to by cmd.  Output from the
- * executed command is captured and sent to LogCat Info.  Once
- * the command has finished execution, it's exit status is captured
- * and checked for an exit status of zero.  Any other exit status
- * causes diagnostic information to be printed and an immediate
- * testcase failure.
- */
-static void execCmd(const char *cmd)
-{
-    FILE *fp;
-    int rv;
-    int status;
-    char str[MAXSTR];
-
-    // Display command to be executed
-    testPrintI("cmd: %s", cmd);
-
-    // Execute the command
-    fflush(stdout);
-    if ((fp = popen(cmd, "r")) == NULL) {
-        testPrintE("execCmd popen failed, errno: %i", errno);
-        exit(30);
-    }
-
-    // Obtain and display each line of output from the executed command
-    while (fgets(str, sizeof(str), fp) != NULL) {
-        if ((strlen(str) > 1) && (str[strlen(str) - 1] == '\n')) {
-            str[strlen(str) - 1] = '\0';
-        }
-        testPrintI(" out: %s", str);
-    }
-
-    // Obtain and check return status of executed command.
-    // Fail on non-zero exit status
-    status = pclose(fp);
-    if (!(WIFEXITED(status) && (WEXITSTATUS(status) == 0))) {
-        testPrintE("Unexpected command failure");
-        testPrintE("  status: %#x", status);
-        if (WIFEXITED(status)) {
-            testPrintE("WEXITSTATUS: %i", WEXITSTATUS(status));
-        }
-        if (WIFSIGNALED(status)) {
-            testPrintE("WTERMSIG: %i", WTERMSIG(status));
-        }
-        exit(31);
-    }
-}
-
-static void checkEglError(const char* op, EGLBoolean returnVal) {
-    if (returnVal != EGL_TRUE) {
-        testPrintE("%s() returned %d", op, returnVal);
-    }
-
-    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
-            = eglGetError()) {
-        testPrintE("after %s() eglError %s (0x%x)",
-                   op, EGLUtils::strerror(error), error);
-    }
-}
-
-static void checkGlError(const char* op) {
-    for (GLint error = glGetError(); error; error
-            = glGetError()) {
-        testPrintE("after %s() glError (0x%x)", op, error);
-    }
-}
-
-static void printEGLConfiguration(EGLDisplay dpy, EGLConfig config) {
-
-#define X(VAL) {VAL, #VAL}
-    struct {EGLint attribute; const char* name;} names[] = {
-    X(EGL_BUFFER_SIZE),
-    X(EGL_ALPHA_SIZE),
-    X(EGL_BLUE_SIZE),
-    X(EGL_GREEN_SIZE),
-    X(EGL_RED_SIZE),
-    X(EGL_DEPTH_SIZE),
-    X(EGL_STENCIL_SIZE),
-    X(EGL_CONFIG_CAVEAT),
-    X(EGL_CONFIG_ID),
-    X(EGL_LEVEL),
-    X(EGL_MAX_PBUFFER_HEIGHT),
-    X(EGL_MAX_PBUFFER_PIXELS),
-    X(EGL_MAX_PBUFFER_WIDTH),
-    X(EGL_NATIVE_RENDERABLE),
-    X(EGL_NATIVE_VISUAL_ID),
-    X(EGL_NATIVE_VISUAL_TYPE),
-    X(EGL_SAMPLES),
-    X(EGL_SAMPLE_BUFFERS),
-    X(EGL_SURFACE_TYPE),
-    X(EGL_TRANSPARENT_TYPE),
-    X(EGL_TRANSPARENT_RED_VALUE),
-    X(EGL_TRANSPARENT_GREEN_VALUE),
-    X(EGL_TRANSPARENT_BLUE_VALUE),
-    X(EGL_BIND_TO_TEXTURE_RGB),
-    X(EGL_BIND_TO_TEXTURE_RGBA),
-    X(EGL_MIN_SWAP_INTERVAL),
-    X(EGL_MAX_SWAP_INTERVAL),
-    X(EGL_LUMINANCE_SIZE),
-    X(EGL_ALPHA_MASK_SIZE),
-    X(EGL_COLOR_BUFFER_TYPE),
-    X(EGL_RENDERABLE_TYPE),
-    X(EGL_CONFORMANT),
-   };
-#undef X
-
-    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
-        EGLint value = -1;
-        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value);
-        EGLint error = eglGetError();
-        if (returnVal && error == EGL_SUCCESS) {
-            testPrintI(" %s: %d (%#x)", names[j].name, value, value);
-        }
-    }
-    testPrintI("");
-}
-
-static void printGLString(const char *name, GLenum s)
-{
-    const char *v = (const char *) glGetString(s);
-
-    if (v == NULL) {
-        testPrintI("GL %s unknown", name);
-    } else {
-        testPrintI("GL %s = %s", name, v);
-    }
-}
-
-/*
- * createLayerList
- * dynamically creates layer list with numLayers worth
- * of hwLayers entries.
- */
-static hwc_layer_list_t *createLayerList(size_t numLayers)
-{
-    hwc_layer_list_t *list;
-
-    size_t size = sizeof(hwc_layer_list) + numLayers * sizeof(hwc_layer_t);
-    if ((list = (hwc_layer_list_t *) calloc(1, size)) == NULL) {
-        return NULL;
-    }
-    list->flags = HWC_GEOMETRY_CHANGED;
-    list->numHwLayers = numLayers;
-
-    return list;
-}
-
-/*
- * freeLayerList
- * Frees memory previous allocated via createLayerList().
- */
-static void freeLayerList(hwc_layer_list_t *list)
-{
-    free(list);
-}
-
-static void fillColor(GraphicBuffer *gBuf, RGBColor color, float trans)
-{
-    unsigned char* buf = NULL;
-    status_t err;
-    uint32_t pixel;
-
-    // RGB 2 YUV conversion ratios
-    const struct rgb2yuvRatios {
-        int format;
-        float weightRed;
-        float weightBlu;
-        float weightGrn;
-    } rgb2yuvRatios[] = {
-        { HAL_PIXEL_FORMAT_YV12, 0.299, 0.114, 0.587 },
-    };
-
-    const struct rgbAttrib {
-        int format;
-        bool   hostByteOrder;
-        size_t bytes;
-        size_t rOffset;
-        size_t rSize;
-        size_t gOffset;
-        size_t gSize;
-        size_t bOffset;
-        size_t bSize;
-        size_t aOffset;
-        size_t aSize;
-    } rgbAttributes[] = {
-        {HAL_PIXEL_FORMAT_RGBA_8888, false, 4,  0, 8,  8, 8, 16, 8, 24, 8},
-        {HAL_PIXEL_FORMAT_RGBX_8888, false, 4,  0, 8,  8, 8, 16, 8,  0, 0},
-        {HAL_PIXEL_FORMAT_RGB_888,   false, 3,  0, 8,  8, 8, 16, 8,  0, 0},
-        {HAL_PIXEL_FORMAT_RGB_565,   true,  2,  0, 5,  5, 6, 11, 5,  0, 0},
-        {HAL_PIXEL_FORMAT_BGRA_8888, false, 4, 16, 8,  8, 8,  0, 8, 24, 8},
-        {HAL_PIXEL_FORMAT_RGBA_5551, true , 2,  0, 5,  5, 5, 10, 5, 15, 1},
-        {HAL_PIXEL_FORMAT_RGBA_4444, false, 2, 12, 4,  0, 4,  4, 4,  8, 4},
-    };
-
-    // If YUV format, convert color and pass work to YUV color fill
-    for (unsigned int n1 = 0; n1 < NUMA(rgb2yuvRatios); n1++) {
-        if (gBuf->getPixelFormat() == rgb2yuvRatios[n1].format) {
-            float wr = rgb2yuvRatios[n1].weightRed;
-            float wb = rgb2yuvRatios[n1].weightBlu;
-            float wg = rgb2yuvRatios[n1].weightGrn;
-            float y = wr * color.r() + wb * color.b() + wg * color.g();
-            float u = 0.5 * ((color.b() - y) / (1 - wb)) + 0.5;
-            float v = 0.5 * ((color.r() - y) / (1 - wr)) + 0.5;
-            YUVColor yuvColor(y, u, v);
-            fillColor(gBuf, yuvColor, trans);
-            return;
-        }
-    }
-
-    const struct rgbAttrib *attrib;
-    for (attrib = rgbAttributes; attrib < rgbAttributes + NUMA(rgbAttributes);
-         attrib++) {
-        if (attrib->format == gBuf->getPixelFormat()) { break; }
-    }
-    if (attrib >= rgbAttributes + NUMA(rgbAttributes)) {
-        testPrintE("fillColor rgb unsupported format of: %u",
-        gBuf->getPixelFormat());
-        exit(50);
-    }
-
-    pixel = htonl((uint32_t) (((1 << attrib->rSize) - 1) * color.r())
-         << ((sizeof(pixel) * BITSPERBYTE)
-             - (attrib->rOffset + attrib->rSize)));
-    pixel |= htonl((uint32_t) (((1 << attrib->gSize) - 1) * color.g())
-         << ((sizeof(pixel) * BITSPERBYTE)
-             - (attrib->gOffset + attrib->gSize)));
-    pixel |= htonl((uint32_t) (((1 << attrib->bSize) - 1) * color.b())
-         << ((sizeof(pixel) * BITSPERBYTE)
-             - (attrib->bOffset + attrib->bSize)));
-    if (attrib->aSize) {
-        pixel |= htonl((uint32_t) (((1 << attrib->aSize) - 1) * trans)
-             << ((sizeof(pixel) * BITSPERBYTE)
-                 - (attrib->aOffset + attrib->aSize)));
-    }
-    if (attrib->hostByteOrder) {
-        pixel = ntohl(pixel);
-        pixel >>= sizeof(pixel) * BITSPERBYTE - attrib->bytes * BITSPERBYTE;
-    }
-
-    err = gBuf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
-    if (err != 0) {
-        testPrintE("fillColor rgb lock failed: %d", err);
-        exit(51);
-    }
-
-    for (unsigned int row = 0; row < gBuf->getHeight(); row++) {
-        for (unsigned int col = 0; col < gBuf->getWidth(); col++) {
-          memmove(buf, &pixel, attrib->bytes);
-          buf += attrib->bytes;
-        }
-        for (unsigned int pad = 0;
-             pad < (gBuf->getStride() - gBuf->getWidth()) * attrib->bytes;
-             pad++) {
-            *buf++ = testRandMod(256);
-        }
-    }
-
-    err = gBuf->unlock();
-    if (err != 0) {
-        testPrintE("fillColor rgb unlock failed: %d", err);
-        exit(52);
-    }
-}
-
-static void fillColor(GraphicBuffer *gBuf, YUVColor color, float trans)
-{
-    unsigned char* buf = NULL;
-    status_t err;
-    unsigned int width = gBuf->getWidth();
-    unsigned int height = gBuf->getHeight();
-
-    const struct yuvAttrib {
-        int format;
-        bool   planar;
-        unsigned int uSubSampX;
-        unsigned int uSubSampY;
-        unsigned int vSubSampX;
-        unsigned int vSubSampY;
-    } yuvAttributes[] = {
-        { HAL_PIXEL_FORMAT_YV12, true, 2, 2, 2, 2},
-    };
-
-    const struct yuvAttrib *attrib;
-    for (attrib = yuvAttributes; attrib < yuvAttributes + NUMA(yuvAttributes);
-         attrib++) {
-        if (attrib->format == gBuf->getPixelFormat()) { break; }
-    }
-    if (attrib >= yuvAttributes + NUMA(yuvAttributes)) {
-        testPrintE("fillColor yuv unsupported format of: %u",
-        gBuf->getPixelFormat());
-        exit(60);
-    }
-
-    assert(attrib->planar == true); // So far, only know how to handle planar
-
-    err = gBuf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&buf));
-    if (err != 0) {
-        testPrintE("fillColor lock failed: %d", err);
-        exit(61);
-    }
-
-    // Fill in Y component
-    for (unsigned int row = 0; row < height; row++) {
-        for (unsigned int col = 0; col < width; col++) {
-            *buf++ = 255 * color.y();
-        }
-        for (unsigned int pad = 0; pad < gBuf->getStride() - gBuf->getWidth();
-             pad++) {
-             *buf++ = testRandMod(256);
-        }
-    }
-
-    // Fill in U component
-    for (unsigned int row = 0; row < height; row += attrib->uSubSampY) {
-        for (unsigned int col = 0; col < width; col += attrib->uSubSampX) {
-            *buf++ = 255 * color.u();
-        }
-        for (unsigned int pad = 0; pad < gBuf->getStride() - gBuf->getWidth();
-             pad += attrib->uSubSampX) {
-            *buf++ = testRandMod(256);
-        }
-    }
-
-    // Fill in V component
-    for (unsigned int row = 0; row < height; row += attrib->vSubSampY) {
-        for (unsigned int col = 0; col < width; col += attrib->vSubSampX) {
-            *buf++ = 255 * color.v();
-        }
-        for (unsigned int pad = 0; pad < gBuf->getStride() - gBuf->getWidth();
-             pad += attrib->vSubSampX) {
-            *buf++ = testRandMod(256);
-        }
-    }
-
-    err = gBuf->unlock();
-    if (err != 0) {
-        testPrintE("fillColor unlock failed: %d", err);
-        exit(62);
-    }
-}
-
-void init(void)
-{
-    int rv;
-
-    EGLBoolean returnValue;
-    EGLConfig myConfig = {0};
-    EGLint contextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
-    EGLint sConfigAttribs[] = {
-        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
-        EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
-        EGL_NONE };
-    EGLint majorVersion, minorVersion;
-
-    checkEglError("<init>");
-    dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
-    checkEglError("eglGetDisplay");
-    if (dpy == EGL_NO_DISPLAY) {
-        testPrintE("eglGetDisplay returned EGL_NO_DISPLAY");
-        exit(70);
-    }
-
-    returnValue = eglInitialize(dpy, &majorVersion, &minorVersion);
-    checkEglError("eglInitialize", returnValue);
-    testPrintI("EGL version %d.%d", majorVersion, minorVersion);
-    if (returnValue != EGL_TRUE) {
-        testPrintE("eglInitialize failed");
-        exit(71);
-    }
-
-    EGLNativeWindowType window = android_createDisplaySurface();
-    if (window == NULL) {
-        testPrintE("android_createDisplaySurface failed");
-        exit(72);
-    }
-    returnValue = EGLUtils::selectConfigForNativeWindow(dpy,
-        sConfigAttribs, window, &myConfig);
-    if (returnValue) {
-        testPrintE("EGLUtils::selectConfigForNativeWindow() returned %d",
-            returnValue);
-        exit(73);
-    }
-    checkEglError("EGLUtils::selectConfigForNativeWindow");
-
-    testPrintI("Chose this configuration:");
-    printEGLConfiguration(dpy, myConfig);
-
-    surface = eglCreateWindowSurface(dpy, myConfig, window, NULL);
-    checkEglError("eglCreateWindowSurface");
-    if (surface == EGL_NO_SURFACE) {
-        testPrintE("gelCreateWindowSurface failed.");
-        exit(74);
-    }
-
-    context = eglCreateContext(dpy, myConfig, EGL_NO_CONTEXT, contextAttribs);
-    checkEglError("eglCreateContext");
-    if (context == EGL_NO_CONTEXT) {
-        testPrintE("eglCreateContext failed");
-        exit(75);
-    }
-    returnValue = eglMakeCurrent(dpy, surface, surface, context);
-    checkEglError("eglMakeCurrent", returnValue);
-    if (returnValue != EGL_TRUE) {
-        testPrintE("eglMakeCurrent failed");
-        exit(76);
-    }
-    eglQuerySurface(dpy, surface, EGL_WIDTH, &width);
-    checkEglError("eglQuerySurface");
-    eglQuerySurface(dpy, surface, EGL_HEIGHT, &height);
-    checkEglError("eglQuerySurface");
-
-    testPrintI("Window dimensions: %d x %d", width, height);
-
-    printGLString("Version", GL_VERSION);
-    printGLString("Vendor", GL_VENDOR);
-    printGLString("Renderer", GL_RENDERER);
-    printGLString("Extensions", GL_EXTENSIONS);
-
-    if ((rv = hw_get_module(HWC_HARDWARE_MODULE_ID, &hwcModule)) != 0) {
-        testPrintE("hw_get_module failed, rv: %i", rv);
-        errno = -rv;
-        perror(NULL);
-        exit(77);
-    }
-    if ((rv = hwc_open(hwcModule, &hwcDevice)) != 0) {
-        testPrintE("hwc_open failed, rv: %i", rv);
-        errno = -rv;
-        perror(NULL);
-        exit(78);
-    }
-
-    testPrintI("");
-}
-
-/*
- * Initialize Frames
- *
- * Creates an array of graphic buffers, within the global variable
- * named frames.  The graphic buffers are contained within a vector of
- * vectors.  All the graphic buffers in a particular row are of the same
- * format and dimension.  Each graphic buffer is uniformly filled with a
- * prandomly selected color.  It is likely that each buffer, even
- * in the same row, will be filled with a unique color.
- */
-void initFrames(unsigned int seed)
-{
-    int rv;
-    const size_t maxRows = 5;
-    const size_t minCols = 2;  // Need at least double buffering
-    const size_t maxCols = 4;  // One more than triple buffering
-
-    if (verbose) { testPrintI("initFrames seed: %u", seed); }
-    srand48(seed);
-    size_t rows = testRandMod(maxRows) + 1;
-
-    frames.clear();
-    frames.resize(rows);
-
-    for (unsigned int row = 0; row < rows; row++) {
-        // All frames within a row have to have the same format and
-        // dimensions.  Width and height need to be >= 1.
-        unsigned int formatIdx = testRandMod(NUMA(graphicFormat));
-        const struct graphicFormat *formatPtr = &graphicFormat[formatIdx];
-        int format = formatPtr->format;
-
-        // Pick width and height, which must be >= 1 and the size
-        // mod the wMod/hMod value must be equal to 0.
-        size_t w = (width * maxSizeRatio) * testRandFract();
-        size_t h = (height * maxSizeRatio) * testRandFract();
-        w = max(1u, w);
-        h = max(1u, h);
-        if ((w % formatPtr->wMod) != 0) {
-            w += formatPtr->wMod - (w % formatPtr->wMod);
-        }
-        if ((h % formatPtr->hMod) != 0) {
-            h += formatPtr->hMod - (h % formatPtr->hMod);
-        }
-        if (verbose) {
-            testPrintI("  frame %u width: %u height: %u format: %u %s",
-                       row, w, h, format, graphicFormat2str(format));
-        }
-
-        size_t cols = testRandMod((maxCols + 1) - minCols) + minCols;
-        frames[row].resize(cols);
-        for (unsigned int col = 0; col < cols; col++) {
-            RGBColor color(testRandFract(), testRandFract(), testRandFract());
-            float transp = testRandFract();
-
-            frames[row][col] = new GraphicBuffer(w, h, format, texUsage);
-            if ((rv = frames[row][col]->initCheck()) != NO_ERROR) {
-                testPrintE("GraphicBuffer initCheck failed, rv: %i", rv);
-                testPrintE("  frame %u width: %u height: %u format: %u %s",
-                           row, w, h, format, graphicFormat2str(format));
-                exit(80);
-            }
-
-            fillColor(frames[row][col].get(), color, transp);
-            if (verbose) {
-                testPrintI("    buf: %p handle: %p color: <%f, %f, %f> "
-                           "transp: %f",
-                           frames[row][col].get(), frames[row][col]->handle,
-                           color.r(), color.g(), color.b(), transp);
-            }
-        }
-    }
-}
-
-void displayList(hwc_layer_list_t *list)
-{
-    testPrintI("  flags: %#x%s", list->flags,
-               (list->flags & HWC_GEOMETRY_CHANGED) ? " GEOMETRY_CHANGED" : "");
-    testPrintI("  numHwLayers: %u", list->numHwLayers);
-
-    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
-        testPrintI("    layer %u compositionType: %#x%s%s", layer,
-                   list->hwLayers[layer].compositionType,
-                   (list->hwLayers[layer].compositionType == HWC_FRAMEBUFFER)
-                       ? " FRAMEBUFFER" : "",
-                   (list->hwLayers[layer].compositionType == HWC_OVERLAY)
-                       ? " OVERLAY" : "");
-
-        testPrintI("      hints: %#x",
-                   list->hwLayers[layer].hints,
-                   (list->hwLayers[layer].hints & HWC_HINT_TRIPLE_BUFFER)
-                       ? " TRIPLE_BUFFER" : "",
-                   (list->hwLayers[layer].hints & HWC_HINT_CLEAR_FB)
-                       ? " CLEAR_FB" : "");
-
-        testPrintI("      flags: %#x%s",
-                   list->hwLayers[layer].flags,
-                   (list->hwLayers[layer].flags & HWC_SKIP_LAYER)
-                       ? " SKIP_LAYER" : "");
-
-        testPrintI("      handle: %p",
-                   list->hwLayers[layer].handle);
-
-        // Intentionally skipped display of ROT_180 & ROT_270,
-        // which are formed from combinations of the other flags.
-        testPrintI("      transform: %#x%s%s%s",
-                   list->hwLayers[layer].transform,
-                   (list->hwLayers[layer].transform & HWC_TRANSFORM_FLIP_H)
-                       ? " FLIP_H" : "",
-                   (list->hwLayers[layer].transform & HWC_TRANSFORM_FLIP_V)
-                       ? " FLIP_V" : "",
-                   (list->hwLayers[layer].transform & HWC_TRANSFORM_ROT_90)
-                       ? " ROT_90" : "");
-
-        testPrintI("      blending: %#x",
-                   list->hwLayers[layer].blending,
-                   (list->hwLayers[layer].blending == HWC_BLENDING_NONE)
-                       ? " NONE" : "",
-                   (list->hwLayers[layer].blending == HWC_BLENDING_PREMULT)
-                       ? " PREMULT" : "",
-                   (list->hwLayers[layer].blending == HWC_BLENDING_COVERAGE)
-                       ? " COVERAGE" : "");
-
-        testPrintI("      sourceCrop: [%i, %i, %i, %i]",
-                   list->hwLayers[layer].sourceCrop.left,
-                   list->hwLayers[layer].sourceCrop.top,
-                   list->hwLayers[layer].sourceCrop.right,
-                   list->hwLayers[layer].sourceCrop.bottom);
-
-        testPrintI("      displayFrame: [%i, %i, %i, %i]",
-                   list->hwLayers[layer].displayFrame.left,
-                   list->hwLayers[layer].displayFrame.top,
-                   list->hwLayers[layer].displayFrame.right,
-                   list->hwLayers[layer].displayFrame.bottom);
-        testPrintI("      scaleFactor: [%f %f]",
-                   (float) (list->hwLayers[layer].displayFrame.right
-                            - list->hwLayers[layer].displayFrame.left)
-                       / (float) (list->hwLayers[layer].sourceCrop.right
-                            - list->hwLayers[layer].sourceCrop.left),
-                   (float) (list->hwLayers[layer].displayFrame.bottom
-                            - list->hwLayers[layer].displayFrame.top)
-                       / (float) (list->hwLayers[layer].sourceCrop.bottom
-                            - list->hwLayers[layer].sourceCrop.top));
-    }
-}
-
-/*
- * Display List Prepare Modifiable
- *
- * Displays the portions of a list that are meant to be modified by
- * a prepare call.
- */
-void displayListPrepareModifiable(hwc_layer_list_t *list)
-{
-    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
-        testPrintI("    layer %u compositionType: %#x%s%s", layer,
-                   list->hwLayers[layer].compositionType,
-                   (list->hwLayers[layer].compositionType == HWC_FRAMEBUFFER)
-                       ? " FRAMEBUFFER" : "",
-                   (list->hwLayers[layer].compositionType == HWC_OVERLAY)
-                       ? " OVERLAY" : "");
-        testPrintI("      hints: %#x%s%s",
-                   list->hwLayers[layer].hints,
-                   (list->hwLayers[layer].hints & HWC_HINT_TRIPLE_BUFFER)
-                       ? " TRIPLE_BUFFER" : "",
-                   (list->hwLayers[layer].hints & HWC_HINT_CLEAR_FB)
-                       ? " CLEAR_FB" : "");
-    }
-}
-
-/*
- * Display List Handles
- *
- * Displays the handles of all the graphic buffers in the list.
- */
-void displayListHandles(hwc_layer_list_t *list)
-{
-    const unsigned int maxLayersPerLine = 6;
-
-    ostringstream str("  layers:");
-    for (unsigned int layer = 0; layer < list->numHwLayers; layer++) {
-        str << ' ' << list->hwLayers[layer].handle;
-        if (((layer % maxLayersPerLine) == (maxLayersPerLine - 1))
-            && (layer != list->numHwLayers - 1)) {
-            testPrintI("%s", str.str().c_str());
-            str.str("    ");
-        }
-    }
-    testPrintI("%s", str.str().c_str());
-}
-
-const char *graphicFormat2str(unsigned int format)
-{
-    const static char *unknown = "unknown";
-
-    for (unsigned int n1 = 0; n1 < NUMA(graphicFormat); n1++) {
-        if (format == graphicFormat[n1].format) {
-            return graphicFormat[n1].desc;
-        }
-    }
-
-    return unknown;
-}
-
-/*
- * Vector Random Select
- *
- * Prandomly selects and returns num elements from vec.
- */
-template <class T>
-vector<T> vectorRandSelect(const vector<T>& vec, size_t num)
-{
-    vector<T> rv = vec;
-
-    while (rv.size() > num) {
-        rv.erase(rv.begin() + testRandMod(rv.size()));
-    }
-
-    return rv;
-}
-
-/*
- * Vector Or
- *
- * Or's togethen the values of each element of vec and returns the result.
- */
-template <class T>
-T vectorOr(const vector<T>& vec)
-{
-    T rv = 0;
-
-    for (size_t n1 = 0; n1 < vec.size(); n1++) {
-        rv |= vec[n1];
-    }
-
-    return rv;
-}
diff --git a/opengl/tests/include/glTestLib.h b/opengl/tests/include/glTestLib.h
new file mode 100644
index 0000000..06fbf5d
--- /dev/null
+++ b/opengl/tests/include/glTestLib.h
@@ -0,0 +1,34 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Graphics Test Library Header
+ */
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+//#include <ui/FramebufferNativeWindow.h>
+//#include <ui/GraphicBuffer.h>
+#include <ui/EGLUtils.h>
+
+void glTestPrintGLString(const char *name, GLenum s);
+void glTestCheckEglError(const char* op, EGLBoolean returnVal = EGL_TRUE);
+void glTestCheckGlError(const char* op);
+void glTestPrintEGLConfiguration(EGLDisplay dpy, EGLConfig config);
diff --git a/opengl/tests/lib/Android.mk b/opengl/tests/lib/Android.mk
new file mode 100644
index 0000000..7542ac4
--- /dev/null
+++ b/opengl/tests/lib/Android.mk
@@ -0,0 +1,32 @@
+# 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.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_MODULE:= libglTest
+LOCAL_SRC_FILES:= glTestLib.cpp
+LOCAL_C_INCLUDES += system/extras/tests/include \
+    bionic \
+    bionic/libstdc++/include \
+    external/stlport/stlport \
+    frameworks/base/opengl/tests/include \
+
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+
+LOCAL_SHARED_LIBRARIES += libcutils libutils libstlport
+LOCAL_PRELINK_MODULE := false
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/opengl/tests/lib/glTestLib.cpp b/opengl/tests/lib/glTestLib.cpp
new file mode 100644
index 0000000..052cbd7
--- /dev/null
+++ b/opengl/tests/lib/glTestLib.cpp
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ *
+ */
+
+/*
+ * Graphics Test Library
+ */
+
+#include <glTestLib.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <ui/EGLUtils.h>
+
+#include <utils/Log.h>
+#include <testUtil.h>
+
+using namespace std;
+using namespace android;
+
+void glTestPrintGLString(const char *name, GLenum s)
+{
+    const char *v = (const char *) glGetString(s);
+
+    if (v == NULL) {
+        testPrintI("GL %s unknown", name);
+    } else {
+        testPrintI("GL %s = %s", name, v);
+    }
+}
+
+void glTestCheckEglError(const char* op, EGLBoolean returnVal)
+{
+    if (returnVal != EGL_TRUE) {
+        testPrintE("%s() returned %d", op, returnVal);
+    }
+
+    for (EGLint error = eglGetError(); error != EGL_SUCCESS; error
+            = eglGetError()) {
+        testPrintE("after %s() eglError %s (0x%x)",
+                   op, EGLUtils::strerror(error), error);
+    }
+}
+
+void glTestCheckGlError(const char* op)
+{
+    for (GLint error = glGetError(); error; error
+            = glGetError()) {
+        testPrintE("after %s() glError (0x%x)", op, error);
+    }
+}
+
+void glTestPrintEGLConfiguration(EGLDisplay dpy, EGLConfig config)
+{
+
+#define X(VAL) {VAL, #VAL}
+    struct {EGLint attribute; const char* name;} names[] = {
+    X(EGL_BUFFER_SIZE),
+    X(EGL_ALPHA_SIZE),
+    X(EGL_BLUE_SIZE),
+    X(EGL_GREEN_SIZE),
+    X(EGL_RED_SIZE),
+    X(EGL_DEPTH_SIZE),
+    X(EGL_STENCIL_SIZE),
+    X(EGL_CONFIG_CAVEAT),
+    X(EGL_CONFIG_ID),
+    X(EGL_LEVEL),
+    X(EGL_MAX_PBUFFER_HEIGHT),
+    X(EGL_MAX_PBUFFER_PIXELS),
+    X(EGL_MAX_PBUFFER_WIDTH),
+    X(EGL_NATIVE_RENDERABLE),
+    X(EGL_NATIVE_VISUAL_ID),
+    X(EGL_NATIVE_VISUAL_TYPE),
+    X(EGL_SAMPLES),
+    X(EGL_SAMPLE_BUFFERS),
+    X(EGL_SURFACE_TYPE),
+    X(EGL_TRANSPARENT_TYPE),
+    X(EGL_TRANSPARENT_RED_VALUE),
+    X(EGL_TRANSPARENT_GREEN_VALUE),
+    X(EGL_TRANSPARENT_BLUE_VALUE),
+    X(EGL_BIND_TO_TEXTURE_RGB),
+    X(EGL_BIND_TO_TEXTURE_RGBA),
+    X(EGL_MIN_SWAP_INTERVAL),
+    X(EGL_MAX_SWAP_INTERVAL),
+    X(EGL_LUMINANCE_SIZE),
+    X(EGL_ALPHA_MASK_SIZE),
+    X(EGL_COLOR_BUFFER_TYPE),
+    X(EGL_RENDERABLE_TYPE),
+    X(EGL_CONFORMANT),
+   };
+#undef X
+
+    for (size_t j = 0; j < sizeof(names) / sizeof(names[0]); j++) {
+        EGLint value = -1;
+        EGLint returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute,
+                                              &value);
+        EGLint error = eglGetError();
+        if (returnVal && error == EGL_SUCCESS) {
+            testPrintI(" %s: %d (%#x)", names[j].name, value, value);
+        }
+    }
+    testPrintI("");
+}