split libsurfaceflinger_client and libcamera_client out of libui
diff --git a/libs/surfaceflinger_client/Android.mk b/libs/surfaceflinger_client/Android.mk
new file mode 100644
index 0000000..fe85b34
--- /dev/null
+++ b/libs/surfaceflinger_client/Android.mk
@@ -0,0 +1,26 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ ISurfaceComposer.cpp \
+ ISurface.cpp \
+ ISurfaceFlingerClient.cpp \
+ LayerState.cpp \
+ SharedBufferStack.cpp \
+ Surface.cpp \
+ SurfaceComposerClient.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ libutils \
+ libbinder \
+ libhardware \
+ libui
+
+LOCAL_MODULE:= libsurfaceflinger_client
+
+ifeq ($(TARGET_SIMULATOR),true)
+ LOCAL_LDLIBS += -lpthread
+endif
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libs/surfaceflinger_client/ISurface.cpp b/libs/surfaceflinger_client/ISurface.cpp
new file mode 100644
index 0000000..9125146
--- /dev/null
+++ b/libs/surfaceflinger_client/ISurface.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ISurface"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+
+#include <ui/Overlay.h>
+#include <ui/GraphicBuffer.h>
+
+#include <surfaceflinger/Surface.h>
+#include <surfaceflinger/ISurface.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+ISurface::BufferHeap::BufferHeap()
+ : w(0), h(0), hor_stride(0), ver_stride(0), format(0),
+ transform(0), flags(0)
+{
+}
+
+ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h,
+ int32_t hor_stride, int32_t ver_stride,
+ PixelFormat format, const sp<IMemoryHeap>& heap)
+ : w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride),
+ format(format), transform(0), flags(0), heap(heap)
+{
+}
+
+ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h,
+ int32_t hor_stride, int32_t ver_stride,
+ PixelFormat format, uint32_t transform, uint32_t flags,
+ const sp<IMemoryHeap>& heap)
+ : w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride),
+ format(format), transform(transform), flags(flags), heap(heap)
+{
+}
+
+
+ISurface::BufferHeap::~BufferHeap()
+{
+}
+
+// ----------------------------------------------------------------------
+
+class BpSurface : public BpInterface<ISurface>
+{
+public:
+ BpSurface(const sp<IBinder>& impl)
+ : BpInterface<ISurface>(impl)
+ {
+ }
+
+ virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, int usage)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
+ data.writeInt32(bufferIdx);
+ data.writeInt32(usage);
+ remote()->transact(REQUEST_BUFFER, data, &reply);
+ sp<GraphicBuffer> buffer = new GraphicBuffer(reply);
+ return buffer;
+ }
+
+ virtual status_t registerBuffers(const BufferHeap& buffers)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
+ data.writeInt32(buffers.w);
+ data.writeInt32(buffers.h);
+ data.writeInt32(buffers.hor_stride);
+ data.writeInt32(buffers.ver_stride);
+ data.writeInt32(buffers.format);
+ data.writeInt32(buffers.transform);
+ data.writeInt32(buffers.flags);
+ data.writeStrongBinder(buffers.heap->asBinder());
+ remote()->transact(REGISTER_BUFFERS, data, &reply);
+ status_t result = reply.readInt32();
+ return result;
+ }
+
+ virtual void postBuffer(ssize_t offset)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
+ data.writeInt32(offset);
+ remote()->transact(POST_BUFFER, data, &reply, IBinder::FLAG_ONEWAY);
+ }
+
+ virtual void unregisterBuffers()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
+ remote()->transact(UNREGISTER_BUFFERS, data, &reply);
+ }
+
+ virtual sp<OverlayRef> createOverlay(
+ uint32_t w, uint32_t h, int32_t format, int32_t orientation)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
+ data.writeInt32(w);
+ data.writeInt32(h);
+ data.writeInt32(format);
+ data.writeInt32(orientation);
+ remote()->transact(CREATE_OVERLAY, data, &reply);
+ return OverlayRef::readFromParcel(reply);
+ }
+};
+
+IMPLEMENT_META_INTERFACE(Surface, "android.ui.ISurface");
+
+// ----------------------------------------------------------------------
+
+status_t BnSurface::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case REQUEST_BUFFER: {
+ CHECK_INTERFACE(ISurface, data, reply);
+ int bufferIdx = data.readInt32();
+ int usage = data.readInt32();
+ sp<GraphicBuffer> buffer(requestBuffer(bufferIdx, usage));
+ return GraphicBuffer::writeToParcel(reply, buffer.get());
+ }
+ case REGISTER_BUFFERS: {
+ CHECK_INTERFACE(ISurface, data, reply);
+ BufferHeap buffer;
+ buffer.w = data.readInt32();
+ buffer.h = data.readInt32();
+ buffer.hor_stride = data.readInt32();
+ buffer.ver_stride= data.readInt32();
+ buffer.format = data.readInt32();
+ buffer.transform = data.readInt32();
+ buffer.flags = data.readInt32();
+ buffer.heap = interface_cast<IMemoryHeap>(data.readStrongBinder());
+ status_t err = registerBuffers(buffer);
+ reply->writeInt32(err);
+ return NO_ERROR;
+ } break;
+ case UNREGISTER_BUFFERS: {
+ CHECK_INTERFACE(ISurface, data, reply);
+ unregisterBuffers();
+ return NO_ERROR;
+ } break;
+ case POST_BUFFER: {
+ CHECK_INTERFACE(ISurface, data, reply);
+ ssize_t offset = data.readInt32();
+ postBuffer(offset);
+ return NO_ERROR;
+ } break;
+ case CREATE_OVERLAY: {
+ CHECK_INTERFACE(ISurface, data, reply);
+ int w = data.readInt32();
+ int h = data.readInt32();
+ int f = data.readInt32();
+ int orientation = data.readInt32();
+ sp<OverlayRef> o = createOverlay(w, h, f, orientation);
+ return OverlayRef::writeToParcel(reply, o);
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+}; // namespace android
diff --git a/libs/surfaceflinger_client/ISurfaceComposer.cpp b/libs/surfaceflinger_client/ISurfaceComposer.cpp
new file mode 100644
index 0000000..b6f4e24
--- /dev/null
+++ b/libs/surfaceflinger_client/ISurfaceComposer.cpp
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// tag as surfaceflinger
+#define LOG_TAG "SurfaceFlinger"
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <ui/DisplayInfo.h>
+
+#include <surfaceflinger/ISurfaceComposer.h>
+
+// ---------------------------------------------------------------------------
+
+#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
+#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
+
+// ---------------------------------------------------------------------------
+
+namespace android {
+
+class BpSurfaceComposer : public BpInterface<ISurfaceComposer>
+{
+public:
+ BpSurfaceComposer(const sp<IBinder>& impl)
+ : BpInterface<ISurfaceComposer>(impl)
+ {
+ }
+
+ virtual sp<ISurfaceFlingerClient> createConnection()
+ {
+ uint32_t n;
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply);
+ return interface_cast<ISurfaceFlingerClient>(reply.readStrongBinder());
+ }
+
+ virtual sp<IMemoryHeap> getCblk() const
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::GET_CBLK, data, &reply);
+ return interface_cast<IMemoryHeap>(reply.readStrongBinder());
+ }
+
+ virtual void openGlobalTransaction()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::OPEN_GLOBAL_TRANSACTION, data, &reply);
+ }
+
+ virtual void closeGlobalTransaction()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::CLOSE_GLOBAL_TRANSACTION, data, &reply);
+ }
+
+ virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ data.writeInt32(dpy);
+ data.writeInt32(flags);
+ remote()->transact(BnSurfaceComposer::FREEZE_DISPLAY, data, &reply);
+ return reply.readInt32();
+ }
+
+ virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ data.writeInt32(dpy);
+ data.writeInt32(flags);
+ remote()->transact(BnSurfaceComposer::UNFREEZE_DISPLAY, data, &reply);
+ return reply.readInt32();
+ }
+
+ virtual int setOrientation(DisplayID dpy, int orientation, uint32_t flags)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ data.writeInt32(dpy);
+ data.writeInt32(orientation);
+ data.writeInt32(flags);
+ remote()->transact(BnSurfaceComposer::SET_ORIENTATION, data, &reply);
+ return reply.readInt32();
+ }
+
+ virtual void bootFinished()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply);
+ }
+
+ virtual void signal() const
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
+ remote()->transact(BnSurfaceComposer::SIGNAL, data, &reply, IBinder::FLAG_ONEWAY);
+ }
+};
+
+IMPLEMENT_META_INTERFACE(SurfaceComposer, "android.ui.ISurfaceComposer");
+
+// ----------------------------------------------------------------------
+
+status_t BnSurfaceComposer::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case CREATE_CONNECTION: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ sp<IBinder> b = createConnection()->asBinder();
+ reply->writeStrongBinder(b);
+ } break;
+ case OPEN_GLOBAL_TRANSACTION: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ openGlobalTransaction();
+ } break;
+ case CLOSE_GLOBAL_TRANSACTION: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ closeGlobalTransaction();
+ } break;
+ case SET_ORIENTATION: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ DisplayID dpy = data.readInt32();
+ int orientation = data.readInt32();
+ uint32_t flags = data.readInt32();
+ reply->writeInt32( setOrientation(dpy, orientation, flags) );
+ } break;
+ case FREEZE_DISPLAY: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ DisplayID dpy = data.readInt32();
+ uint32_t flags = data.readInt32();
+ reply->writeInt32( freezeDisplay(dpy, flags) );
+ } break;
+ case UNFREEZE_DISPLAY: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ DisplayID dpy = data.readInt32();
+ uint32_t flags = data.readInt32();
+ reply->writeInt32( unfreezeDisplay(dpy, flags) );
+ } break;
+ case BOOT_FINISHED: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ bootFinished();
+ } break;
+ case SIGNAL: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ signal();
+ } break;
+ case GET_CBLK: {
+ CHECK_INTERFACE(ISurfaceComposer, data, reply);
+ sp<IBinder> b = getCblk()->asBinder();
+ reply->writeStrongBinder(b);
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+
+};
diff --git a/libs/surfaceflinger_client/ISurfaceFlingerClient.cpp b/libs/surfaceflinger_client/ISurfaceFlingerClient.cpp
new file mode 100644
index 0000000..e636c52
--- /dev/null
+++ b/libs/surfaceflinger_client/ISurfaceFlingerClient.cpp
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// tag as surfaceflinger
+#define LOG_TAG "SurfaceFlinger"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <ui/Point.h>
+#include <ui/Rect.h>
+
+#include <surfaceflinger/ISurface.h>
+#include <surfaceflinger/ISurfaceFlingerClient.h>
+#include <private/surfaceflinger/LayerState.h>
+
+// ---------------------------------------------------------------------------
+
+/* ideally AID_GRAPHICS would be in a semi-public header
+ * or there would be a way to map a user/group name to its id
+ */
+#ifndef AID_GRAPHICS
+#define AID_GRAPHICS 1003
+#endif
+
+#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
+#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
+
+// ---------------------------------------------------------------------------
+
+namespace android {
+
+enum {
+ GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
+ CREATE_SURFACE,
+ DESTROY_SURFACE,
+ SET_STATE
+};
+
+class BpSurfaceFlingerClient : public BpInterface<ISurfaceFlingerClient>
+{
+public:
+ BpSurfaceFlingerClient(const sp<IBinder>& impl)
+ : BpInterface<ISurfaceFlingerClient>(impl)
+ {
+ }
+
+ virtual sp<IMemoryHeap> getControlBlock() const
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceFlingerClient::getInterfaceDescriptor());
+ remote()->transact(GET_CBLK, data, &reply);
+ return interface_cast<IMemoryHeap>(reply.readStrongBinder());
+ }
+
+ virtual sp<ISurface> createSurface( surface_data_t* params,
+ int pid,
+ DisplayID display,
+ uint32_t w,
+ uint32_t h,
+ PixelFormat format,
+ uint32_t flags)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceFlingerClient::getInterfaceDescriptor());
+ data.writeInt32(pid);
+ data.writeInt32(display);
+ data.writeInt32(w);
+ data.writeInt32(h);
+ data.writeInt32(format);
+ data.writeInt32(flags);
+ remote()->transact(CREATE_SURFACE, data, &reply);
+ params->readFromParcel(reply);
+ return interface_cast<ISurface>(reply.readStrongBinder());
+ }
+
+ virtual status_t destroySurface(SurfaceID sid)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceFlingerClient::getInterfaceDescriptor());
+ data.writeInt32(sid);
+ remote()->transact(DESTROY_SURFACE, data, &reply);
+ return reply.readInt32();
+ }
+
+ virtual status_t setState(int32_t count, const layer_state_t* states)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceFlingerClient::getInterfaceDescriptor());
+ data.writeInt32(count);
+ for (int i=0 ; i<count ; i++)
+ states[i].write(data);
+ remote()->transact(SET_STATE, data, &reply);
+ return reply.readInt32();
+ }
+};
+
+IMPLEMENT_META_INTERFACE(SurfaceFlingerClient, "android.ui.ISurfaceFlingerClient");
+
+// ----------------------------------------------------------------------
+
+status_t BnSurfaceFlingerClient::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ // codes that don't require permission check
+
+ switch(code) {
+ case GET_CBLK: {
+ CHECK_INTERFACE(ISurfaceFlingerClient, data, reply);
+ sp<IMemoryHeap> ctl(getControlBlock());
+ reply->writeStrongBinder(ctl->asBinder());
+ return NO_ERROR;
+ } break;
+ }
+
+ // these must be checked
+
+ IPCThreadState* ipc = IPCThreadState::self();
+ const int pid = ipc->getCallingPid();
+ const int uid = ipc->getCallingUid();
+ const int self_pid = getpid();
+ if (UNLIKELY(pid != self_pid && uid != AID_GRAPHICS)) {
+ // we're called from a different process, do the real check
+ if (!checkCallingPermission(
+ String16("android.permission.ACCESS_SURFACE_FLINGER")))
+ {
+ LOGE("Permission Denial: "
+ "can't openGlobalTransaction pid=%d, uid=%d", pid, uid);
+ return PERMISSION_DENIED;
+ }
+ }
+
+ switch(code) {
+ case CREATE_SURFACE: {
+ CHECK_INTERFACE(ISurfaceFlingerClient, data, reply);
+ surface_data_t params;
+ int32_t pid = data.readInt32();
+ DisplayID display = data.readInt32();
+ uint32_t w = data.readInt32();
+ uint32_t h = data.readInt32();
+ PixelFormat format = data.readInt32();
+ uint32_t flags = data.readInt32();
+ sp<ISurface> s = createSurface(¶ms, pid, display, w, h, format, flags);
+ params.writeToParcel(reply);
+ reply->writeStrongBinder(s->asBinder());
+ return NO_ERROR;
+ } break;
+ case DESTROY_SURFACE: {
+ CHECK_INTERFACE(ISurfaceFlingerClient, data, reply);
+ reply->writeInt32( destroySurface( data.readInt32() ) );
+ return NO_ERROR;
+ } break;
+ case SET_STATE: {
+ CHECK_INTERFACE(ISurfaceFlingerClient, data, reply);
+ int32_t count = data.readInt32();
+ layer_state_t* states = new layer_state_t[count];
+ for (int i=0 ; i<count ; i++)
+ states[i].read(data);
+ status_t err = setState(count, states);
+ delete [] states;
+ reply->writeInt32(err);
+ return NO_ERROR;
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------
+
+status_t ISurfaceFlingerClient::surface_data_t::readFromParcel(const Parcel& parcel)
+{
+ token = parcel.readInt32();
+ identity = parcel.readInt32();
+ width = parcel.readInt32();
+ height = parcel.readInt32();
+ format = parcel.readInt32();
+ return NO_ERROR;
+}
+
+status_t ISurfaceFlingerClient::surface_data_t::writeToParcel(Parcel* parcel) const
+{
+ parcel->writeInt32(token);
+ parcel->writeInt32(identity);
+ parcel->writeInt32(width);
+ parcel->writeInt32(height);
+ parcel->writeInt32(format);
+ return NO_ERROR;
+}
+
+}; // namespace android
diff --git a/libs/surfaceflinger_client/LayerState.cpp b/libs/surfaceflinger_client/LayerState.cpp
new file mode 100644
index 0000000..114a9e9
--- /dev/null
+++ b/libs/surfaceflinger_client/LayerState.cpp
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Errors.h>
+#include <binder/Parcel.h>
+#include <private/surfaceflinger/LayerState.h>
+
+namespace android {
+
+status_t layer_state_t::write(Parcel& output) const
+{
+ size_t size = sizeof(layer_state_t);
+ transparentRegion.write(output);
+ size -= sizeof(transparentRegion);
+ output.write(this, size);
+ return NO_ERROR;
+}
+
+status_t layer_state_t::read(const Parcel& input)
+{
+ size_t size = sizeof(layer_state_t);
+ transparentRegion.read(input);
+ size -= sizeof(transparentRegion);
+ input.read(this, size);
+ return NO_ERROR;
+}
+
+}; // namespace android
diff --git a/libs/surfaceflinger_client/SharedBufferStack.cpp b/libs/surfaceflinger_client/SharedBufferStack.cpp
new file mode 100644
index 0000000..ceb5e59
--- /dev/null
+++ b/libs/surfaceflinger_client/SharedBufferStack.cpp
@@ -0,0 +1,424 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SharedBufferStack"
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Debug.h>
+#include <utils/Log.h>
+#include <utils/threads.h>
+
+#include <private/surfaceflinger/SharedBufferStack.h>
+
+#include <ui/Rect.h>
+#include <ui/Region.h>
+
+#define DEBUG_ATOMICS 0
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+SharedClient::SharedClient()
+ : lock(Mutex::SHARED)
+{
+}
+
+SharedClient::~SharedClient() {
+}
+
+
+// these functions are used by the clients
+status_t SharedClient::validate(size_t i) const {
+ if (uint32_t(i) >= uint32_t(NUM_LAYERS_MAX))
+ return BAD_INDEX;
+ return surfaces[i].status;
+}
+
+uint32_t SharedClient::getIdentity(size_t token) const {
+ return uint32_t(surfaces[token].identity);
+}
+
+// ----------------------------------------------------------------------------
+
+
+SharedBufferStack::SharedBufferStack()
+{
+}
+
+void SharedBufferStack::init(int32_t i)
+{
+ inUse = -1;
+ status = NO_ERROR;
+ identity = i;
+}
+
+status_t SharedBufferStack::setDirtyRegion(int buffer, const Region& dirty)
+{
+ if (uint32_t(buffer) >= NUM_BUFFER_MAX)
+ return BAD_INDEX;
+
+ // in the current implementation we only send a single rectangle
+ const Rect bounds(dirty.getBounds());
+ FlatRegion& reg(dirtyRegion[buffer]);
+ reg.count = 1;
+ reg.rects[0] = uint16_t(bounds.left);
+ reg.rects[1] = uint16_t(bounds.top);
+ reg.rects[2] = uint16_t(bounds.right);
+ reg.rects[3] = uint16_t(bounds.bottom);
+ return NO_ERROR;
+}
+
+Region SharedBufferStack::getDirtyRegion(int buffer) const
+{
+ Region res;
+ if (uint32_t(buffer) >= NUM_BUFFER_MAX)
+ return res;
+
+ const FlatRegion& reg(dirtyRegion[buffer]);
+ res.set(Rect(reg.rects[0], reg.rects[1], reg.rects[2], reg.rects[3]));
+ return res;
+}
+
+// ----------------------------------------------------------------------------
+
+SharedBufferBase::SharedBufferBase(SharedClient* sharedClient,
+ int surface, int num, int32_t identity)
+ : mSharedClient(sharedClient),
+ mSharedStack(sharedClient->surfaces + surface),
+ mNumBuffers(num), mIdentity(identity)
+{
+}
+
+SharedBufferBase::~SharedBufferBase()
+{
+}
+
+uint32_t SharedBufferBase::getIdentity()
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.identity;
+}
+
+status_t SharedBufferBase::getStatus() const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.status;
+}
+
+size_t SharedBufferBase::getFrontBuffer() const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return size_t( stack.head );
+}
+
+String8 SharedBufferBase::dump(char const* prefix) const
+{
+ const size_t SIZE = 1024;
+ char buffer[SIZE];
+ String8 result;
+ SharedBufferStack& stack( *mSharedStack );
+ snprintf(buffer, SIZE,
+ "%s[ head=%2d, available=%2d, queued=%2d ] "
+ "reallocMask=%08x, inUse=%2d, identity=%d, status=%d\n",
+ prefix, stack.head, stack.available, stack.queued,
+ stack.reallocMask, stack.inUse, stack.identity, stack.status);
+ result.append(buffer);
+ return result;
+}
+
+// ============================================================================
+// conditions and updates
+// ============================================================================
+
+SharedBufferClient::DequeueCondition::DequeueCondition(
+ SharedBufferClient* sbc) : ConditionBase(sbc) {
+}
+bool SharedBufferClient::DequeueCondition::operator()() {
+ return stack.available > 0;
+}
+
+SharedBufferClient::LockCondition::LockCondition(
+ SharedBufferClient* sbc, int buf) : ConditionBase(sbc), buf(buf) {
+}
+bool SharedBufferClient::LockCondition::operator()() {
+ return (buf != stack.head ||
+ (stack.queued > 0 && stack.inUse != buf));
+}
+
+SharedBufferServer::ReallocateCondition::ReallocateCondition(
+ SharedBufferBase* sbb, int buf) : ConditionBase(sbb), buf(buf) {
+}
+bool SharedBufferServer::ReallocateCondition::operator()() {
+ // TODO: we should also check that buf has been dequeued
+ return (buf != stack.head);
+}
+
+// ----------------------------------------------------------------------------
+
+SharedBufferClient::QueueUpdate::QueueUpdate(SharedBufferBase* sbb)
+ : UpdateBase(sbb) {
+}
+ssize_t SharedBufferClient::QueueUpdate::operator()() {
+ android_atomic_inc(&stack.queued);
+ return NO_ERROR;
+}
+
+SharedBufferClient::UndoDequeueUpdate::UndoDequeueUpdate(SharedBufferBase* sbb)
+ : UpdateBase(sbb) {
+}
+ssize_t SharedBufferClient::UndoDequeueUpdate::operator()() {
+ android_atomic_inc(&stack.available);
+ return NO_ERROR;
+}
+
+SharedBufferServer::UnlockUpdate::UnlockUpdate(
+ SharedBufferBase* sbb, int lockedBuffer)
+ : UpdateBase(sbb), lockedBuffer(lockedBuffer) {
+}
+ssize_t SharedBufferServer::UnlockUpdate::operator()() {
+ if (stack.inUse != lockedBuffer) {
+ LOGE("unlocking %d, but currently locked buffer is %d",
+ lockedBuffer, stack.inUse);
+ return BAD_VALUE;
+ }
+ android_atomic_write(-1, &stack.inUse);
+ return NO_ERROR;
+}
+
+SharedBufferServer::RetireUpdate::RetireUpdate(
+ SharedBufferBase* sbb, int numBuffers)
+ : UpdateBase(sbb), numBuffers(numBuffers) {
+}
+ssize_t SharedBufferServer::RetireUpdate::operator()() {
+ // head is only written in this function, which is single-thread.
+ int32_t head = stack.head;
+
+ // Preventively lock the current buffer before updating queued.
+ android_atomic_write(head, &stack.inUse);
+
+ // Decrement the number of queued buffers
+ int32_t queued;
+ do {
+ queued = stack.queued;
+ if (queued == 0) {
+ return NOT_ENOUGH_DATA;
+ }
+ } while (android_atomic_cmpxchg(queued, queued-1, &stack.queued));
+
+ // update the head pointer
+ head = ((head+1 >= numBuffers) ? 0 : head+1);
+
+ // lock the buffer before advancing head, which automatically unlocks
+ // the buffer we preventively locked upon entering this function
+ android_atomic_write(head, &stack.inUse);
+
+ // advance head
+ android_atomic_write(head, &stack.head);
+
+ // now that head has moved, we can increment the number of available buffers
+ android_atomic_inc(&stack.available);
+ return head;
+}
+
+SharedBufferServer::StatusUpdate::StatusUpdate(
+ SharedBufferBase* sbb, status_t status)
+ : UpdateBase(sbb), status(status) {
+}
+
+ssize_t SharedBufferServer::StatusUpdate::operator()() {
+ android_atomic_write(status, &stack.status);
+ return NO_ERROR;
+}
+
+// ============================================================================
+
+SharedBufferClient::SharedBufferClient(SharedClient* sharedClient,
+ int surface, int num, int32_t identity)
+ : SharedBufferBase(sharedClient, surface, num, identity), tail(0)
+{
+ tail = computeTail();
+}
+
+int32_t SharedBufferClient::computeTail() const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ // we need to make sure we read available and head coherently,
+ // w.r.t RetireUpdate.
+ int32_t newTail;
+ int32_t avail;
+ int32_t head;
+ do {
+ avail = stack.available;
+ head = stack.head;
+ } while (stack.available != avail);
+ newTail = head - avail + 1;
+ if (newTail < 0) {
+ newTail += mNumBuffers;
+ }
+ return newTail;
+}
+
+ssize_t SharedBufferClient::dequeue()
+{
+ SharedBufferStack& stack( *mSharedStack );
+
+ if (stack.head == tail && stack.available == 2) {
+ LOGW("dequeue: tail=%d, head=%d, avail=%d, queued=%d",
+ tail, stack.head, stack.available, stack.queued);
+ }
+
+ const nsecs_t dequeueTime = systemTime(SYSTEM_TIME_THREAD);
+
+ //LOGD("[%d] about to dequeue a buffer",
+ // mSharedStack->identity);
+ DequeueCondition condition(this);
+ status_t err = waitForCondition(condition);
+ if (err != NO_ERROR)
+ return ssize_t(err);
+
+ // NOTE: 'stack.available' is part of the conditions, however
+ // decrementing it, never changes any conditions, so we don't need
+ // to do this as part of an update.
+ if (android_atomic_dec(&stack.available) == 0) {
+ LOGW("dequeue probably called from multiple threads!");
+ }
+
+ int dequeued = tail;
+ tail = ((tail+1 >= mNumBuffers) ? 0 : tail+1);
+ LOGD_IF(DEBUG_ATOMICS, "dequeued=%d, tail=%d, %s",
+ dequeued, tail, dump("").string());
+
+ mDequeueTime[dequeued] = dequeueTime;
+
+ return dequeued;
+}
+
+status_t SharedBufferClient::undoDequeue(int buf)
+{
+ UndoDequeueUpdate update(this);
+ status_t err = updateCondition( update );
+ if (err == NO_ERROR) {
+ tail = computeTail();
+ }
+ return err;
+}
+
+status_t SharedBufferClient::lock(int buf)
+{
+ LockCondition condition(this, buf);
+ status_t err = waitForCondition(condition);
+ return err;
+}
+
+status_t SharedBufferClient::queue(int buf)
+{
+ QueueUpdate update(this);
+ status_t err = updateCondition( update );
+ LOGD_IF(DEBUG_ATOMICS, "queued=%d, %s", buf, dump("").string());
+ SharedBufferStack& stack( *mSharedStack );
+ const nsecs_t now = systemTime(SYSTEM_TIME_THREAD);
+ stack.stats.totalTime = ns2us(now - mDequeueTime[buf]);
+ return err;
+}
+
+bool SharedBufferClient::needNewBuffer(int buffer) const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ const uint32_t mask = 1<<buffer;
+ return (android_atomic_and(~mask, &stack.reallocMask) & mask) != 0;
+}
+
+status_t SharedBufferClient::setDirtyRegion(int buffer, const Region& reg)
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.setDirtyRegion(buffer, reg);
+}
+
+// ----------------------------------------------------------------------------
+
+SharedBufferServer::SharedBufferServer(SharedClient* sharedClient,
+ int surface, int num, int32_t identity)
+ : SharedBufferBase(sharedClient, surface, num, identity)
+{
+ mSharedStack->init(identity);
+ mSharedStack->head = num-1;
+ mSharedStack->available = num;
+ mSharedStack->queued = 0;
+ mSharedStack->reallocMask = 0;
+ memset(mSharedStack->dirtyRegion, 0, sizeof(mSharedStack->dirtyRegion));
+}
+
+ssize_t SharedBufferServer::retireAndLock()
+{
+ RetireUpdate update(this, mNumBuffers);
+ ssize_t buf = updateCondition( update );
+ LOGD_IF(DEBUG_ATOMICS && buf>=0, "retire=%d, %s", int(buf), dump("").string());
+ return buf;
+}
+
+status_t SharedBufferServer::unlock(int buffer)
+{
+ UnlockUpdate update(this, buffer);
+ status_t err = updateCondition( update );
+ return err;
+}
+
+void SharedBufferServer::setStatus(status_t status)
+{
+ if (status < NO_ERROR) {
+ StatusUpdate update(this, status);
+ updateCondition( update );
+ }
+}
+
+status_t SharedBufferServer::reallocate()
+{
+ SharedBufferStack& stack( *mSharedStack );
+ uint32_t mask = (1<<mNumBuffers)-1;
+ android_atomic_or(mask, &stack.reallocMask);
+ return NO_ERROR;
+}
+
+int32_t SharedBufferServer::getQueuedCount() const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.queued;
+}
+
+status_t SharedBufferServer::assertReallocate(int buffer)
+{
+ ReallocateCondition condition(this, buffer);
+ status_t err = waitForCondition(condition);
+ return err;
+}
+
+Region SharedBufferServer::getDirtyRegion(int buffer) const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.getDirtyRegion(buffer);
+}
+
+SharedBufferStack::Statistics SharedBufferServer::getStats() const
+{
+ SharedBufferStack& stack( *mSharedStack );
+ return stack.stats;
+}
+
+
+// ---------------------------------------------------------------------------
+}; // namespace android
diff --git a/libs/surfaceflinger_client/Surface.cpp b/libs/surfaceflinger_client/Surface.cpp
new file mode 100644
index 0000000..eb3457b
--- /dev/null
+++ b/libs/surfaceflinger_client/Surface.cpp
@@ -0,0 +1,758 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "Surface"
+
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <utils/Errors.h>
+#include <utils/threads.h>
+#include <utils/CallStack.h>
+#include <utils/Log.h>
+
+#include <pixelflinger/pixelflinger.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/IMemory.h>
+
+#include <ui/DisplayInfo.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/GraphicBufferMapper.h>
+#include <ui/Rect.h>
+
+#include <surfaceflinger/Surface.h>
+#include <surfaceflinger/ISurface.h>
+#include <surfaceflinger/ISurfaceComposer.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
+
+#include <private/surfaceflinger/SharedBufferStack.h>
+#include <private/surfaceflinger/LayerState.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+static status_t copyBlt(
+ const sp<GraphicBuffer>& dst,
+ const sp<GraphicBuffer>& src,
+ const Region& reg)
+{
+ status_t err;
+ uint8_t const * src_bits = NULL;
+ err = src->lock(GRALLOC_USAGE_SW_READ_OFTEN, reg.bounds(), (void**)&src_bits);
+ LOGE_IF(err, "error locking src buffer %s", strerror(-err));
+
+ uint8_t* dst_bits = NULL;
+ err = dst->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, reg.bounds(), (void**)&dst_bits);
+ LOGE_IF(err, "error locking dst buffer %s", strerror(-err));
+
+ Region::const_iterator head(reg.begin());
+ Region::const_iterator tail(reg.end());
+ if (head != tail && src_bits && dst_bits) {
+ // NOTE: dst and src must be the same format
+ const size_t bpp = bytesPerPixel(src->format);
+ const size_t dbpr = dst->stride * bpp;
+ const size_t sbpr = src->stride * bpp;
+
+ while (head != tail) {
+ const Rect& r(*head++);
+ ssize_t h = r.height();
+ if (h <= 0) continue;
+ size_t size = r.width() * bpp;
+ uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
+ uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
+ if (dbpr==sbpr && size==sbpr) {
+ size *= h;
+ h = 1;
+ }
+ do {
+ memcpy(d, s, size);
+ d += dbpr;
+ s += sbpr;
+ } while (--h > 0);
+ }
+ }
+
+ if (src_bits)
+ src->unlock();
+
+ if (dst_bits)
+ dst->unlock();
+
+ return err;
+}
+
+// ============================================================================
+// SurfaceControl
+// ============================================================================
+
+SurfaceControl::SurfaceControl(
+ const sp<SurfaceComposerClient>& client,
+ const sp<ISurface>& surface,
+ const ISurfaceFlingerClient::surface_data_t& data,
+ uint32_t w, uint32_t h, PixelFormat format, uint32_t flags)
+ : mClient(client), mSurface(surface),
+ mToken(data.token), mIdentity(data.identity),
+ mWidth(data.width), mHeight(data.height), mFormat(data.format),
+ mFlags(flags)
+{
+}
+
+SurfaceControl::~SurfaceControl()
+{
+ destroy();
+}
+
+void SurfaceControl::destroy()
+{
+ if (isValid()) {
+ mClient->destroySurface(mToken);
+ }
+
+ // clear all references and trigger an IPC now, to make sure things
+ // happen without delay, since these resources are quite heavy.
+ mClient.clear();
+ mSurface.clear();
+ IPCThreadState::self()->flushCommands();
+}
+
+void SurfaceControl::clear()
+{
+ // here, the window manager tells us explicitly that we should destroy
+ // the surface's resource. Soon after this call, it will also release
+ // its last reference (which will call the dtor); however, it is possible
+ // that a client living in the same process still holds references which
+ // would delay the call to the dtor -- that is why we need this explicit
+ // "clear()" call.
+ destroy();
+}
+
+bool SurfaceControl::isSameSurface(
+ const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs)
+{
+ if (lhs == 0 || rhs == 0)
+ return false;
+ return lhs->mSurface->asBinder() == rhs->mSurface->asBinder();
+}
+
+status_t SurfaceControl::setLayer(int32_t layer) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setLayer(mToken, layer);
+}
+status_t SurfaceControl::setPosition(int32_t x, int32_t y) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setPosition(mToken, x, y);
+}
+status_t SurfaceControl::setSize(uint32_t w, uint32_t h) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setSize(mToken, w, h);
+}
+status_t SurfaceControl::hide() {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->hide(mToken);
+}
+status_t SurfaceControl::show(int32_t layer) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->show(mToken, layer);
+}
+status_t SurfaceControl::freeze() {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->freeze(mToken);
+}
+status_t SurfaceControl::unfreeze() {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->unfreeze(mToken);
+}
+status_t SurfaceControl::setFlags(uint32_t flags, uint32_t mask) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setFlags(mToken, flags, mask);
+}
+status_t SurfaceControl::setTransparentRegionHint(const Region& transparent) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setTransparentRegionHint(mToken, transparent);
+}
+status_t SurfaceControl::setAlpha(float alpha) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setAlpha(mToken, alpha);
+}
+status_t SurfaceControl::setMatrix(float dsdx, float dtdx, float dsdy, float dtdy) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setMatrix(mToken, dsdx, dtdx, dsdy, dtdy);
+}
+status_t SurfaceControl::setFreezeTint(uint32_t tint) {
+ const sp<SurfaceComposerClient>& client(mClient);
+ status_t err = validate();
+ if (err < 0) return err;
+ return client->setFreezeTint(mToken, tint);
+}
+
+status_t SurfaceControl::validate() const
+{
+ if (mToken<0 || mClient==0) {
+ LOGE("invalid token (%d, identity=%u) or client (%p)",
+ mToken, mIdentity, mClient.get());
+ return NO_INIT;
+ }
+ SharedClient const* cblk = mClient->mControl;
+ if (cblk == 0) {
+ LOGE("cblk is null (surface id=%d, identity=%u)", mToken, mIdentity);
+ return NO_INIT;
+ }
+ status_t err = cblk->validate(mToken);
+ if (err != NO_ERROR) {
+ LOGE("surface (id=%d, identity=%u) is invalid, err=%d (%s)",
+ mToken, mIdentity, err, strerror(-err));
+ return err;
+ }
+ uint32_t identity = cblk->getIdentity(mToken);
+ if (mIdentity != identity) {
+ LOGE("using an invalid surface id=%d, identity=%u should be %d",
+ mToken, mIdentity, identity);
+ return NO_INIT;
+ }
+ return NO_ERROR;
+}
+
+status_t SurfaceControl::writeSurfaceToParcel(
+ const sp<SurfaceControl>& control, Parcel* parcel)
+{
+ uint32_t flags = 0;
+ uint32_t format = 0;
+ SurfaceID token = -1;
+ uint32_t identity = 0;
+ uint32_t width = 0;
+ uint32_t height = 0;
+ sp<SurfaceComposerClient> client;
+ sp<ISurface> sur;
+ if (SurfaceControl::isValid(control)) {
+ token = control->mToken;
+ identity = control->mIdentity;
+ client = control->mClient;
+ sur = control->mSurface;
+ width = control->mWidth;
+ height = control->mHeight;
+ format = control->mFormat;
+ flags = control->mFlags;
+ }
+ parcel->writeStrongBinder(client!=0 ? client->connection() : NULL);
+ parcel->writeStrongBinder(sur!=0 ? sur->asBinder() : NULL);
+ parcel->writeInt32(token);
+ parcel->writeInt32(identity);
+ parcel->writeInt32(width);
+ parcel->writeInt32(height);
+ parcel->writeInt32(format);
+ parcel->writeInt32(flags);
+ return NO_ERROR;
+}
+
+sp<Surface> SurfaceControl::getSurface() const
+{
+ Mutex::Autolock _l(mLock);
+ if (mSurfaceData == 0) {
+ mSurfaceData = new Surface(const_cast<SurfaceControl*>(this));
+ }
+ return mSurfaceData;
+}
+
+// ============================================================================
+// Surface
+// ============================================================================
+
+Surface::Surface(const sp<SurfaceControl>& surface)
+ : mClient(surface->mClient), mSurface(surface->mSurface),
+ mToken(surface->mToken), mIdentity(surface->mIdentity),
+ mFormat(surface->mFormat), mFlags(surface->mFlags),
+ mBufferMapper(GraphicBufferMapper::get()), mSharedBufferClient(NULL),
+ mWidth(surface->mWidth), mHeight(surface->mHeight)
+{
+ mSharedBufferClient = new SharedBufferClient(
+ mClient->mControl, mToken, 2, mIdentity);
+
+ init();
+}
+
+Surface::Surface(const Parcel& parcel)
+ : mBufferMapper(GraphicBufferMapper::get()), mSharedBufferClient(NULL)
+{
+ sp<IBinder> clientBinder = parcel.readStrongBinder();
+ mSurface = interface_cast<ISurface>(parcel.readStrongBinder());
+ mToken = parcel.readInt32();
+ mIdentity = parcel.readInt32();
+ mWidth = parcel.readInt32();
+ mHeight = parcel.readInt32();
+ mFormat = parcel.readInt32();
+ mFlags = parcel.readInt32();
+
+ // FIXME: what does that mean if clientBinder is NULL here?
+ if (clientBinder != NULL) {
+ mClient = SurfaceComposerClient::clientForConnection(clientBinder);
+
+ mSharedBufferClient = new SharedBufferClient(
+ mClient->mControl, mToken, 2, mIdentity);
+ }
+
+ init();
+}
+
+void Surface::init()
+{
+ android_native_window_t::setSwapInterval = setSwapInterval;
+ android_native_window_t::dequeueBuffer = dequeueBuffer;
+ android_native_window_t::lockBuffer = lockBuffer;
+ android_native_window_t::queueBuffer = queueBuffer;
+ android_native_window_t::query = query;
+ android_native_window_t::perform = perform;
+ mSwapRectangle.makeInvalid();
+ DisplayInfo dinfo;
+ SurfaceComposerClient::getDisplayInfo(0, &dinfo);
+ const_cast<float&>(android_native_window_t::xdpi) = dinfo.xdpi;
+ const_cast<float&>(android_native_window_t::ydpi) = dinfo.ydpi;
+ // FIXME: set real values here
+ const_cast<int&>(android_native_window_t::minSwapInterval) = 1;
+ const_cast<int&>(android_native_window_t::maxSwapInterval) = 1;
+ const_cast<uint32_t&>(android_native_window_t::flags) = 0;
+ // be default we request a hardware surface
+ mUsage = GRALLOC_USAGE_HW_RENDER;
+ mNeedFullUpdate = false;
+}
+
+Surface::~Surface()
+{
+ // this is a client-side operation, the surface is destroyed, unmap
+ // its buffers in this process.
+ for (int i=0 ; i<2 ; i++) {
+ if (mBuffers[i] != 0 && mBuffers[i]->handle != 0) {
+ getBufferMapper().unregisterBuffer(mBuffers[i]->handle);
+ }
+ }
+
+ // clear all references and trigger an IPC now, to make sure things
+ // happen without delay, since these resources are quite heavy.
+ mClient.clear();
+ mSurface.clear();
+ delete mSharedBufferClient;
+ IPCThreadState::self()->flushCommands();
+}
+
+sp<SurfaceComposerClient> Surface::getClient() const {
+ return mClient;
+}
+
+sp<ISurface> Surface::getISurface() const {
+ return mSurface;
+}
+
+bool Surface::isValid() {
+ return mToken>=0 && mClient!=0;
+}
+
+status_t Surface::validate() const
+{
+ sp<SurfaceComposerClient> client(getClient());
+ if (mToken<0 || mClient==0) {
+ LOGE("invalid token (%d, identity=%u) or client (%p)",
+ mToken, mIdentity, client.get());
+ return NO_INIT;
+ }
+ SharedClient const* cblk = mClient->mControl;
+ if (cblk == 0) {
+ LOGE("cblk is null (surface id=%d, identity=%u)", mToken, mIdentity);
+ return NO_INIT;
+ }
+ status_t err = cblk->validate(mToken);
+ if (err != NO_ERROR) {
+ LOGE("surface (id=%d, identity=%u) is invalid, err=%d (%s)",
+ mToken, mIdentity, err, strerror(-err));
+ return err;
+ }
+ uint32_t identity = cblk->getIdentity(mToken);
+ if (mIdentity != identity) {
+ LOGE("using an invalid surface id=%d, identity=%u should be %d",
+ mToken, mIdentity, identity);
+ return NO_INIT;
+ }
+ return NO_ERROR;
+}
+
+
+bool Surface::isSameSurface(
+ const sp<Surface>& lhs, const sp<Surface>& rhs)
+{
+ if (lhs == 0 || rhs == 0)
+ return false;
+
+ return lhs->mSurface->asBinder() == rhs->mSurface->asBinder();
+}
+
+// ----------------------------------------------------------------------------
+
+int Surface::setSwapInterval(android_native_window_t* window, int interval) {
+ return 0;
+}
+
+int Surface::dequeueBuffer(android_native_window_t* window,
+ android_native_buffer_t** buffer) {
+ Surface* self = getSelf(window);
+ return self->dequeueBuffer(buffer);
+}
+
+int Surface::lockBuffer(android_native_window_t* window,
+ android_native_buffer_t* buffer) {
+ Surface* self = getSelf(window);
+ return self->lockBuffer(buffer);
+}
+
+int Surface::queueBuffer(android_native_window_t* window,
+ android_native_buffer_t* buffer) {
+ Surface* self = getSelf(window);
+ return self->queueBuffer(buffer);
+}
+
+int Surface::query(android_native_window_t* window,
+ int what, int* value) {
+ Surface* self = getSelf(window);
+ return self->query(what, value);
+}
+
+int Surface::perform(android_native_window_t* window,
+ int operation, ...) {
+ va_list args;
+ va_start(args, operation);
+ Surface* self = getSelf(window);
+ int res = self->perform(operation, args);
+ va_end(args);
+ return res;
+}
+
+// ----------------------------------------------------------------------------
+
+status_t Surface::dequeueBuffer(sp<GraphicBuffer>* buffer) {
+ android_native_buffer_t* out;
+ status_t err = dequeueBuffer(&out);
+ if (err == NO_ERROR) {
+ *buffer = GraphicBuffer::getSelf(out);
+ }
+ return err;
+}
+
+// ----------------------------------------------------------------------------
+
+
+int Surface::dequeueBuffer(android_native_buffer_t** buffer)
+{
+ sp<SurfaceComposerClient> client(getClient());
+ status_t err = validate();
+ if (err != NO_ERROR)
+ return err;
+
+ ssize_t bufIdx = mSharedBufferClient->dequeue();
+ if (bufIdx < 0) {
+ LOGE("error dequeuing a buffer (%s)", strerror(bufIdx));
+ return bufIdx;
+ }
+
+ // below we make sure we AT LEAST have the usage flags we want
+ const uint32_t usage(getUsage());
+ const sp<GraphicBuffer>& backBuffer(mBuffers[bufIdx]);
+ if (backBuffer == 0 ||
+ ((uint32_t(backBuffer->usage) & usage) != usage) ||
+ mSharedBufferClient->needNewBuffer(bufIdx))
+ {
+ err = getBufferLocked(bufIdx, usage);
+ LOGE_IF(err, "getBufferLocked(%ld, %08x) failed (%s)",
+ bufIdx, usage, strerror(-err));
+ if (err == NO_ERROR) {
+ // reset the width/height with the what we get from the buffer
+ mWidth = uint32_t(backBuffer->width);
+ mHeight = uint32_t(backBuffer->height);
+ }
+ }
+
+ // if we still don't have a buffer here, we probably ran out of memory
+ if (!err && backBuffer==0) {
+ err = NO_MEMORY;
+ }
+
+ if (err == NO_ERROR) {
+ mDirtyRegion.set(backBuffer->width, backBuffer->height);
+ *buffer = backBuffer.get();
+ } else {
+ mSharedBufferClient->undoDequeue(bufIdx);
+ }
+
+ return err;
+}
+
+int Surface::lockBuffer(android_native_buffer_t* buffer)
+{
+ sp<SurfaceComposerClient> client(getClient());
+ status_t err = validate();
+ if (err != NO_ERROR)
+ return err;
+
+ int32_t bufIdx = GraphicBuffer::getSelf(buffer)->getIndex();
+ err = mSharedBufferClient->lock(bufIdx);
+ LOGE_IF(err, "error locking buffer %d (%s)", bufIdx, strerror(-err));
+ return err;
+}
+
+int Surface::queueBuffer(android_native_buffer_t* buffer)
+{
+ sp<SurfaceComposerClient> client(getClient());
+ status_t err = validate();
+ if (err != NO_ERROR)
+ return err;
+
+ if (mSwapRectangle.isValid()) {
+ mDirtyRegion.set(mSwapRectangle);
+ }
+
+ int32_t bufIdx = GraphicBuffer::getSelf(buffer)->getIndex();
+ mSharedBufferClient->setDirtyRegion(bufIdx, mDirtyRegion);
+ err = mSharedBufferClient->queue(bufIdx);
+ LOGE_IF(err, "error queuing buffer %d (%s)", bufIdx, strerror(-err));
+
+ if (err == NO_ERROR) {
+ // FIXME: can we avoid this IPC if we know there is one pending?
+ client->signalServer();
+ }
+ return err;
+}
+
+int Surface::query(int what, int* value)
+{
+ switch (what) {
+ case NATIVE_WINDOW_WIDTH:
+ *value = int(mWidth);
+ return NO_ERROR;
+ case NATIVE_WINDOW_HEIGHT:
+ *value = int(mHeight);
+ return NO_ERROR;
+ case NATIVE_WINDOW_FORMAT:
+ *value = int(mFormat);
+ return NO_ERROR;
+ }
+ return BAD_VALUE;
+}
+
+int Surface::perform(int operation, va_list args)
+{
+ int res = NO_ERROR;
+ switch (operation) {
+ case NATIVE_WINDOW_SET_USAGE:
+ setUsage( va_arg(args, int) );
+ break;
+ default:
+ res = NAME_NOT_FOUND;
+ break;
+ }
+ return res;
+}
+
+void Surface::setUsage(uint32_t reqUsage)
+{
+ Mutex::Autolock _l(mSurfaceLock);
+ mUsage = reqUsage;
+}
+
+uint32_t Surface::getUsage() const
+{
+ Mutex::Autolock _l(mSurfaceLock);
+ return mUsage;
+}
+
+// ----------------------------------------------------------------------------
+
+status_t Surface::lock(SurfaceInfo* info, bool blocking) {
+ return Surface::lock(info, NULL, blocking);
+}
+
+status_t Surface::lock(SurfaceInfo* other, Region* dirtyIn, bool blocking)
+{
+ if (mApiLock.tryLock() != NO_ERROR) {
+ LOGE("calling Surface::lock from different threads!");
+ CallStack stack;
+ stack.update();
+ stack.dump("Surface::lock called from different threads");
+ return WOULD_BLOCK;
+ }
+
+ /* Here we're holding mApiLock */
+
+ if (mLockedBuffer != 0) {
+ LOGE("Surface::lock failed, already locked");
+ mApiLock.unlock();
+ return INVALID_OPERATION;
+ }
+
+ // we're intending to do software rendering from this point
+ setUsage(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
+
+ sp<GraphicBuffer> backBuffer;
+ status_t err = dequeueBuffer(&backBuffer);
+ LOGE_IF(err, "dequeueBuffer failed (%s)", strerror(-err));
+ if (err == NO_ERROR) {
+ err = lockBuffer(backBuffer.get());
+ LOGE_IF(err, "lockBuffer (idx=%d) failed (%s)",
+ backBuffer->getIndex(), strerror(-err));
+ if (err == NO_ERROR) {
+ // we handle copy-back here...
+
+ const Rect bounds(backBuffer->width, backBuffer->height);
+ Region scratch(bounds);
+ Region& newDirtyRegion(dirtyIn ? *dirtyIn : scratch);
+
+ if (mNeedFullUpdate) {
+ // reset newDirtyRegion to bounds when a buffer is reallocated
+ // it would be better if this information was associated with
+ // the buffer and made available to outside of Surface.
+ // This will do for now though.
+ mNeedFullUpdate = false;
+ newDirtyRegion.set(bounds);
+ } else {
+ newDirtyRegion.andSelf(bounds);
+ }
+
+ const sp<GraphicBuffer>& frontBuffer(mPostedBuffer);
+ if (frontBuffer !=0 &&
+ backBuffer->width == frontBuffer->width &&
+ backBuffer->height == frontBuffer->height &&
+ !(mFlags & ISurfaceComposer::eDestroyBackbuffer))
+ {
+ const Region copyback(mOldDirtyRegion.subtract(newDirtyRegion));
+ if (!copyback.isEmpty() && frontBuffer!=0) {
+ // copy front to back
+ copyBlt(backBuffer, frontBuffer, copyback);
+ }
+ }
+
+ mDirtyRegion = newDirtyRegion;
+ mOldDirtyRegion = newDirtyRegion;
+
+ void* vaddr;
+ status_t res = backBuffer->lock(
+ GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
+ newDirtyRegion.bounds(), &vaddr);
+
+ LOGW_IF(res, "failed locking buffer (handle = %p)",
+ backBuffer->handle);
+
+ mLockedBuffer = backBuffer;
+ other->w = backBuffer->width;
+ other->h = backBuffer->height;
+ other->s = backBuffer->stride;
+ other->usage = backBuffer->usage;
+ other->format = backBuffer->format;
+ other->bits = vaddr;
+ }
+ }
+ mApiLock.unlock();
+ return err;
+}
+
+status_t Surface::unlockAndPost()
+{
+ if (mLockedBuffer == 0) {
+ LOGE("Surface::unlockAndPost failed, no locked buffer");
+ return INVALID_OPERATION;
+ }
+
+ status_t err = mLockedBuffer->unlock();
+ LOGE_IF(err, "failed unlocking buffer (%p)", mLockedBuffer->handle);
+
+ err = queueBuffer(mLockedBuffer.get());
+ LOGE_IF(err, "queueBuffer (idx=%d) failed (%s)",
+ mLockedBuffer->getIndex(), strerror(-err));
+
+ mPostedBuffer = mLockedBuffer;
+ mLockedBuffer = 0;
+ return err;
+}
+
+void Surface::setSwapRectangle(const Rect& r) {
+ Mutex::Autolock _l(mSurfaceLock);
+ mSwapRectangle = r;
+}
+
+status_t Surface::getBufferLocked(int index, int usage)
+{
+ sp<ISurface> s(mSurface);
+ if (s == 0) return NO_INIT;
+
+ status_t err = NO_MEMORY;
+
+ // free the current buffer
+ sp<GraphicBuffer>& currentBuffer(mBuffers[index]);
+ if (currentBuffer != 0) {
+ getBufferMapper().unregisterBuffer(currentBuffer->handle);
+ currentBuffer.clear();
+ }
+
+ sp<GraphicBuffer> buffer = s->requestBuffer(index, usage);
+ LOGE_IF(buffer==0,
+ "ISurface::getBuffer(%d, %08x) returned NULL",
+ index, usage);
+ if (buffer != 0) { // this should never happen by construction
+ LOGE_IF(buffer->handle == NULL,
+ "Surface (identity=%d) requestBuffer(%d, %08x) returned"
+ "a buffer with a null handle", mIdentity, index, usage);
+ err = mSharedBufferClient->getStatus();
+ LOGE_IF(err, "Surface (identity=%d) state = %d", mIdentity, err);
+ if (!err && buffer->handle != NULL) {
+ err = getBufferMapper().registerBuffer(buffer->handle);
+ LOGW_IF(err, "registerBuffer(...) failed %d (%s)",
+ err, strerror(-err));
+ if (err == NO_ERROR) {
+ currentBuffer = buffer;
+ currentBuffer->setIndex(index);
+ mNeedFullUpdate = true;
+ }
+ } else {
+ err = err<0 ? err : NO_MEMORY;
+ }
+ }
+ return err;
+}
+
+}; // namespace android
+
diff --git a/libs/surfaceflinger_client/SurfaceComposerClient.cpp b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
new file mode 100644
index 0000000..0b5e504
--- /dev/null
+++ b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
@@ -0,0 +1,622 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SurfaceComposerClient"
+
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <cutils/memory.h>
+
+#include <utils/Atomic.h>
+#include <utils/Errors.h>
+#include <utils/threads.h>
+#include <utils/KeyedVector.h>
+#include <utils/Log.h>
+
+#include <binder/IServiceManager.h>
+#include <binder/IMemory.h>
+
+#include <ui/DisplayInfo.h>
+#include <ui/Rect.h>
+
+#include <surfaceflinger/ISurfaceComposer.h>
+#include <surfaceflinger/ISurfaceFlingerClient.h>
+#include <surfaceflinger/ISurface.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
+
+#include <private/surfaceflinger/LayerState.h>
+#include <private/surfaceflinger/SharedBufferStack.h>
+
+#define VERBOSE(...) ((void)0)
+//#define VERBOSE LOGD
+
+#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
+#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+// Must not be holding SurfaceComposerClient::mLock when acquiring gLock here.
+static Mutex gLock;
+static sp<ISurfaceComposer> gSurfaceManager;
+static DefaultKeyedVector< sp<IBinder>, sp<SurfaceComposerClient> > gActiveConnections;
+static SortedVector<sp<SurfaceComposerClient> > gOpenTransactions;
+static sp<IMemoryHeap> gServerCblkMemory;
+static volatile surface_flinger_cblk_t* gServerCblk;
+
+static sp<ISurfaceComposer> getComposerService()
+{
+ sp<ISurfaceComposer> sc;
+ Mutex::Autolock _l(gLock);
+ if (gSurfaceManager != 0) {
+ sc = gSurfaceManager;
+ } else {
+ // release the lock while we're waiting...
+ gLock.unlock();
+
+ sp<IBinder> binder;
+ sp<IServiceManager> sm = defaultServiceManager();
+ do {
+ binder = sm->getService(String16("SurfaceFlinger"));
+ if (binder == 0) {
+ LOGW("SurfaceFlinger not published, waiting...");
+ usleep(500000); // 0.5 s
+ }
+ } while(binder == 0);
+
+ // grab the lock again for updating gSurfaceManager
+ gLock.lock();
+ if (gSurfaceManager == 0) {
+ sc = interface_cast<ISurfaceComposer>(binder);
+ gSurfaceManager = sc;
+ } else {
+ sc = gSurfaceManager;
+ }
+ }
+ return sc;
+}
+
+static volatile surface_flinger_cblk_t const * get_cblk()
+{
+ if (gServerCblk == 0) {
+ sp<ISurfaceComposer> sm(getComposerService());
+ Mutex::Autolock _l(gLock);
+ if (gServerCblk == 0) {
+ gServerCblkMemory = sm->getCblk();
+ LOGE_IF(gServerCblkMemory==0, "Can't get server control block");
+ gServerCblk = (surface_flinger_cblk_t *)gServerCblkMemory->getBase();
+ LOGE_IF(gServerCblk==0, "Can't get server control block address");
+ }
+ }
+ return gServerCblk;
+}
+
+// ---------------------------------------------------------------------------
+
+static inline int compare_type( const layer_state_t& lhs,
+ const layer_state_t& rhs) {
+ if (lhs.surface < rhs.surface) return -1;
+ if (lhs.surface > rhs.surface) return 1;
+ return 0;
+}
+
+SurfaceComposerClient::SurfaceComposerClient()
+{
+ sp<ISurfaceComposer> sm(getComposerService());
+ if (sm == 0) {
+ _init(0, 0);
+ return;
+ }
+
+ _init(sm, sm->createConnection());
+
+ if (mClient != 0) {
+ Mutex::Autolock _l(gLock);
+ VERBOSE("Adding client %p to map", this);
+ gActiveConnections.add(mClient->asBinder(), this);
+ }
+}
+
+SurfaceComposerClient::SurfaceComposerClient(
+ const sp<ISurfaceComposer>& sm, const sp<IBinder>& conn)
+{
+ _init(sm, interface_cast<ISurfaceFlingerClient>(conn));
+}
+
+
+status_t SurfaceComposerClient::linkToComposerDeath(
+ const sp<IBinder::DeathRecipient>& recipient,
+ void* cookie, uint32_t flags)
+{
+ sp<ISurfaceComposer> sm(getComposerService());
+ return sm->asBinder()->linkToDeath(recipient, cookie, flags);
+}
+
+void SurfaceComposerClient::_init(
+ const sp<ISurfaceComposer>& sm, const sp<ISurfaceFlingerClient>& conn)
+{
+ VERBOSE("Creating client %p, conn %p", this, conn.get());
+
+ mPrebuiltLayerState = 0;
+ mTransactionOpen = 0;
+ mStatus = NO_ERROR;
+ mControl = 0;
+
+ mClient = conn;
+ if (mClient == 0) {
+ mStatus = NO_INIT;
+ return;
+ }
+
+ mControlMemory = mClient->getControlBlock();
+ mSignalServer = sm;
+ mControl = static_cast<SharedClient *>(mControlMemory->getBase());
+}
+
+SurfaceComposerClient::~SurfaceComposerClient()
+{
+ VERBOSE("Destroying client %p, conn %p", this, mClient.get());
+ dispose();
+}
+
+status_t SurfaceComposerClient::initCheck() const
+{
+ return mStatus;
+}
+
+sp<IBinder> SurfaceComposerClient::connection() const
+{
+ return (mClient != 0) ? mClient->asBinder() : 0;
+}
+
+sp<SurfaceComposerClient>
+SurfaceComposerClient::clientForConnection(const sp<IBinder>& conn)
+{
+ sp<SurfaceComposerClient> client;
+
+ { // scope for lock
+ Mutex::Autolock _l(gLock);
+ client = gActiveConnections.valueFor(conn);
+ }
+
+ if (client == 0) {
+ // Need to make a new client.
+ sp<ISurfaceComposer> sm(getComposerService());
+ client = new SurfaceComposerClient(sm, conn);
+ if (client != 0 && client->initCheck() == NO_ERROR) {
+ Mutex::Autolock _l(gLock);
+ gActiveConnections.add(conn, client);
+ //LOGD("we have %d connections", gActiveConnections.size());
+ } else {
+ client.clear();
+ }
+ }
+
+ return client;
+}
+
+void SurfaceComposerClient::dispose()
+{
+ // this can be called more than once.
+
+ sp<IMemoryHeap> controlMemory;
+ sp<ISurfaceFlingerClient> client;
+
+ {
+ Mutex::Autolock _lg(gLock);
+ Mutex::Autolock _lm(mLock);
+
+ mSignalServer = 0;
+
+ if (mClient != 0) {
+ client = mClient;
+ mClient.clear();
+
+ ssize_t i = gActiveConnections.indexOfKey(client->asBinder());
+ if (i >= 0 && gActiveConnections.valueAt(i) == this) {
+ VERBOSE("Removing client %p from map at %d", this, int(i));
+ gActiveConnections.removeItemsAt(i);
+ }
+ }
+
+ delete mPrebuiltLayerState;
+ mPrebuiltLayerState = 0;
+ controlMemory = mControlMemory;
+ mControlMemory.clear();
+ mControl = 0;
+ mStatus = NO_INIT;
+ }
+}
+
+status_t SurfaceComposerClient::getDisplayInfo(
+ DisplayID dpy, DisplayInfo* info)
+{
+ if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
+ return BAD_VALUE;
+
+ volatile surface_flinger_cblk_t const * cblk = get_cblk();
+ volatile display_cblk_t const * dcblk = cblk->displays + dpy;
+
+ info->w = dcblk->w;
+ info->h = dcblk->h;
+ info->orientation = dcblk->orientation;
+ info->xdpi = dcblk->xdpi;
+ info->ydpi = dcblk->ydpi;
+ info->fps = dcblk->fps;
+ info->density = dcblk->density;
+ return getPixelFormatInfo(dcblk->format, &(info->pixelFormatInfo));
+}
+
+ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy)
+{
+ if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
+ return BAD_VALUE;
+ volatile surface_flinger_cblk_t const * cblk = get_cblk();
+ volatile display_cblk_t const * dcblk = cblk->displays + dpy;
+ return dcblk->w;
+}
+
+ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy)
+{
+ if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
+ return BAD_VALUE;
+ volatile surface_flinger_cblk_t const * cblk = get_cblk();
+ volatile display_cblk_t const * dcblk = cblk->displays + dpy;
+ return dcblk->h;
+}
+
+ssize_t SurfaceComposerClient::getDisplayOrientation(DisplayID dpy)
+{
+ if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
+ return BAD_VALUE;
+ volatile surface_flinger_cblk_t const * cblk = get_cblk();
+ volatile display_cblk_t const * dcblk = cblk->displays + dpy;
+ return dcblk->orientation;
+}
+
+ssize_t SurfaceComposerClient::getNumberOfDisplays()
+{
+ volatile surface_flinger_cblk_t const * cblk = get_cblk();
+ uint32_t connected = cblk->connected;
+ int n = 0;
+ while (connected) {
+ if (connected&1) n++;
+ connected >>= 1;
+ }
+ return n;
+}
+
+
+void SurfaceComposerClient::signalServer()
+{
+ mSignalServer->signal();
+}
+
+sp<SurfaceControl> SurfaceComposerClient::createSurface(
+ int pid,
+ DisplayID display,
+ uint32_t w,
+ uint32_t h,
+ PixelFormat format,
+ uint32_t flags)
+{
+ sp<SurfaceControl> result;
+ if (mStatus == NO_ERROR) {
+ ISurfaceFlingerClient::surface_data_t data;
+ sp<ISurface> surface = mClient->createSurface(&data, pid,
+ display, w, h, format, flags);
+ if (surface != 0) {
+ if (uint32_t(data.token) < NUM_LAYERS_MAX) {
+ result = new SurfaceControl(this, surface, data, w, h, format, flags);
+ }
+ }
+ }
+ return result;
+}
+
+status_t SurfaceComposerClient::destroySurface(SurfaceID sid)
+{
+ if (mStatus != NO_ERROR)
+ return mStatus;
+
+ // it's okay to destroy a surface while a transaction is open,
+ // (transactions really are a client-side concept)
+ // however, this indicates probably a misuse of the API or a bug
+ // in the client code.
+ LOGW_IF(mTransactionOpen,
+ "Destroying surface while a transaction is open. "
+ "Client %p: destroying surface %d, mTransactionOpen=%d",
+ this, sid, mTransactionOpen);
+
+ status_t err = mClient->destroySurface(sid);
+ return err;
+}
+
+void SurfaceComposerClient::openGlobalTransaction()
+{
+ Mutex::Autolock _l(gLock);
+
+ if (gOpenTransactions.size()) {
+ LOGE("openGlobalTransaction() called more than once. skipping.");
+ return;
+ }
+
+ const size_t N = gActiveConnections.size();
+ VERBOSE("openGlobalTransaction (%ld clients)", N);
+ for (size_t i=0; i<N; i++) {
+ sp<SurfaceComposerClient> client(gActiveConnections.valueAt(i));
+ if (gOpenTransactions.indexOf(client) < 0) {
+ if (client->openTransaction() == NO_ERROR) {
+ if (gOpenTransactions.add(client) < 0) {
+ // Ooops!
+ LOGE( "Unable to add a SurfaceComposerClient "
+ "to the global transaction set (out of memory?)");
+ client->closeTransaction();
+ // let it go, it'll fail later when the user
+ // tries to do something with the transaction
+ }
+ } else {
+ LOGE("openTransaction on client %p failed", client.get());
+ // let it go, it'll fail later when the user
+ // tries to do something with the transaction
+ }
+ }
+ }
+}
+
+void SurfaceComposerClient::closeGlobalTransaction()
+{
+ gLock.lock();
+ SortedVector< sp<SurfaceComposerClient> > clients(gOpenTransactions);
+ gOpenTransactions.clear();
+ gLock.unlock();
+
+ const size_t N = clients.size();
+ VERBOSE("closeGlobalTransaction (%ld clients)", N);
+
+ sp<ISurfaceComposer> sm(getComposerService());
+ sm->openGlobalTransaction();
+ for (size_t i=0; i<N; i++) {
+ clients[i]->closeTransaction();
+ }
+ sm->closeGlobalTransaction();
+
+}
+
+
+status_t SurfaceComposerClient::freezeDisplay(DisplayID dpy, uint32_t flags)
+{
+ sp<ISurfaceComposer> sm(getComposerService());
+ return sm->freezeDisplay(dpy, flags);
+}
+
+status_t SurfaceComposerClient::unfreezeDisplay(DisplayID dpy, uint32_t flags)
+{
+ sp<ISurfaceComposer> sm(getComposerService());
+ return sm->unfreezeDisplay(dpy, flags);
+}
+
+int SurfaceComposerClient::setOrientation(DisplayID dpy,
+ int orientation, uint32_t flags)
+{
+ sp<ISurfaceComposer> sm(getComposerService());
+ return sm->setOrientation(dpy, orientation, flags);
+}
+
+status_t SurfaceComposerClient::openTransaction()
+{
+ if (mStatus != NO_ERROR)
+ return mStatus;
+ Mutex::Autolock _l(mLock);
+ VERBOSE( "openTransaction (client %p, mTransactionOpen=%d)",
+ this, mTransactionOpen);
+ mTransactionOpen++;
+ if (mPrebuiltLayerState == 0) {
+ mPrebuiltLayerState = new layer_state_t;
+ }
+ return NO_ERROR;
+}
+
+
+status_t SurfaceComposerClient::closeTransaction()
+{
+ if (mStatus != NO_ERROR)
+ return mStatus;
+
+ Mutex::Autolock _l(mLock);
+
+ VERBOSE( "closeTransaction (client %p, mTransactionOpen=%d)",
+ this, mTransactionOpen);
+
+ if (mTransactionOpen <= 0) {
+ LOGE( "closeTransaction (client %p, mTransactionOpen=%d) "
+ "called more times than openTransaction()",
+ this, mTransactionOpen);
+ return INVALID_OPERATION;
+ }
+
+ if (mTransactionOpen >= 2) {
+ mTransactionOpen--;
+ return NO_ERROR;
+ }
+
+ mTransactionOpen = 0;
+ const ssize_t count = mStates.size();
+ if (count) {
+ mClient->setState(count, mStates.array());
+ mStates.clear();
+ }
+ return NO_ERROR;
+}
+
+layer_state_t* SurfaceComposerClient::_get_state_l(SurfaceID index)
+{
+ // API usage error, do nothing.
+ if (mTransactionOpen<=0) {
+ LOGE("Not in transaction (client=%p, SurfaceID=%d, mTransactionOpen=%d",
+ this, int(index), mTransactionOpen);
+ return 0;
+ }
+
+ // use mPrebuiltLayerState just to find out if we already have it
+ layer_state_t& dummy = *mPrebuiltLayerState;
+ dummy.surface = index;
+ ssize_t i = mStates.indexOf(dummy);
+ if (i < 0) {
+ // we don't have it, add an initialized layer_state to our list
+ i = mStates.add(dummy);
+ }
+ return mStates.editArray() + i;
+}
+
+layer_state_t* SurfaceComposerClient::_lockLayerState(SurfaceID id)
+{
+ layer_state_t* s;
+ mLock.lock();
+ s = _get_state_l(id);
+ if (!s) mLock.unlock();
+ return s;
+}
+
+void SurfaceComposerClient::_unlockLayerState()
+{
+ mLock.unlock();
+}
+
+status_t SurfaceComposerClient::setPosition(SurfaceID id, int32_t x, int32_t y)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::ePositionChanged;
+ s->x = x;
+ s->y = y;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setSize(SurfaceID id, uint32_t w, uint32_t h)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eSizeChanged;
+ s->w = w;
+ s->h = h;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setLayer(SurfaceID id, int32_t z)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eLayerChanged;
+ s->z = z;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::hide(SurfaceID id)
+{
+ return setFlags(id, ISurfaceComposer::eLayerHidden,
+ ISurfaceComposer::eLayerHidden);
+}
+
+status_t SurfaceComposerClient::show(SurfaceID id, int32_t)
+{
+ return setFlags(id, 0, ISurfaceComposer::eLayerHidden);
+}
+
+status_t SurfaceComposerClient::freeze(SurfaceID id)
+{
+ return setFlags(id, ISurfaceComposer::eLayerFrozen,
+ ISurfaceComposer::eLayerFrozen);
+}
+
+status_t SurfaceComposerClient::unfreeze(SurfaceID id)
+{
+ return setFlags(id, 0, ISurfaceComposer::eLayerFrozen);
+}
+
+status_t SurfaceComposerClient::setFlags(SurfaceID id,
+ uint32_t flags, uint32_t mask)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eVisibilityChanged;
+ s->flags &= ~mask;
+ s->flags |= (flags & mask);
+ s->mask |= mask;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setTransparentRegionHint(
+ SurfaceID id, const Region& transparentRegion)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eTransparentRegionChanged;
+ s->transparentRegion = transparentRegion;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setAlpha(SurfaceID id, float alpha)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eAlphaChanged;
+ s->alpha = alpha;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setMatrix(
+ SurfaceID id,
+ float dsdx, float dtdx,
+ float dsdy, float dtdy )
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eMatrixChanged;
+ layer_state_t::matrix22_t matrix;
+ matrix.dsdx = dsdx;
+ matrix.dtdx = dtdx;
+ matrix.dsdy = dsdy;
+ matrix.dtdy = dtdy;
+ s->matrix = matrix;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+status_t SurfaceComposerClient::setFreezeTint(SurfaceID id, uint32_t tint)
+{
+ layer_state_t* s = _lockLayerState(id);
+ if (!s) return BAD_INDEX;
+ s->what |= ISurfaceComposer::eFreezeTintChanged;
+ s->tint = tint;
+ _unlockLayerState();
+ return NO_ERROR;
+}
+
+}; // namespace android
+