Add the SurfaceTexture C++ implementation.
This change adds the C++ implementation of SurfaceTexture and related
classes. The goal of this is for a SurfaceTexture to be passed to
camera service or Stagefright in place of a Surface to allow camera
preview or decoded video frames to be streamed to an OpenGL ES texture
that an application can use.
Change-Id: I55c83a7017f1ecb81c9c9e3252cbd118b914296c
diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
index 249558a..d1a6af1 100644
--- a/libs/gui/Android.mk
+++ b/libs/gui/Android.mk
@@ -4,17 +4,25 @@
LOCAL_SRC_FILES:= \
ISensorEventConnection.cpp \
ISensorServer.cpp \
+ ISurfaceTexture.cpp \
Sensor.cpp \
SensorChannel.cpp \
SensorEventQueue.cpp \
- SensorManager.cpp
+ SensorManager.cpp \
+ SurfaceTexture.cpp \
+ SurfaceTextureClient.cpp
LOCAL_SHARED_LIBRARIES := \
libcutils \
libutils \
libbinder \
libhardware \
- libhardware_legacy
+ libhardware_legacy \
+ libui \
+ libEGL \
+ libGLESv2 \
+ libsurfaceflinger_client
+
LOCAL_MODULE:= libgui
diff --git a/libs/gui/ISurfaceTexture.cpp b/libs/gui/ISurfaceTexture.cpp
new file mode 100644
index 0000000..90bca3c
--- /dev/null
+++ b/libs/gui/ISurfaceTexture.cpp
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <utils/Timers.h>
+
+#include <binder/Parcel.h>
+#include <binder/IInterface.h>
+
+#include <gui/ISurfaceTexture.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+enum {
+ REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
+ SET_BUFFER_COUNT,
+ DEQUEUE_BUFFER,
+ QUEUE_BUFFER,
+ CANCEL_BUFFER,
+ SET_CROP,
+ SET_TRANSFORM,
+};
+
+
+class BpSurfaceTexture : public BpInterface<ISurfaceTexture>
+{
+public:
+ BpSurfaceTexture(const sp<IBinder>& impl)
+ : BpInterface<ISurfaceTexture>(impl)
+ {
+ }
+
+ virtual sp<GraphicBuffer> requestBuffer(int bufferIdx,
+ uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeInt32(bufferIdx);
+ data.writeInt32(w);
+ data.writeInt32(h);
+ data.writeInt32(format);
+ data.writeInt32(usage);
+ remote()->transact(REQUEST_BUFFER, data, &reply);
+ sp<GraphicBuffer> buffer;
+ bool nonNull = reply.readInt32();
+ if (nonNull) {
+ buffer = new GraphicBuffer();
+ reply.read(*buffer);
+ }
+ return buffer;
+ }
+
+ virtual status_t setBufferCount(int bufferCount)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeInt32(bufferCount);
+ remote()->transact(SET_BUFFER_COUNT, data, &reply);
+ status_t err = reply.readInt32();
+ return err;
+ }
+
+ virtual status_t dequeueBuffer(int *buf) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ remote()->transact(DEQUEUE_BUFFER, data, &reply);
+ *buf = reply.readInt32();
+ int result = reply.readInt32();
+ return result;
+ }
+
+ virtual status_t queueBuffer(int buf) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeInt32(buf);
+ remote()->transact(QUEUE_BUFFER, data, &reply);
+ status_t result = reply.readInt32();
+ return result;
+ }
+
+ virtual void cancelBuffer(int buf) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeInt32(buf);
+ remote()->transact(CANCEL_BUFFER, data, &reply);
+ }
+
+ virtual status_t setCrop(const Rect& reg) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeFloat(reg.left);
+ data.writeFloat(reg.top);
+ data.writeFloat(reg.right);
+ data.writeFloat(reg.bottom);
+ remote()->transact(SET_CROP, data, &reply);
+ status_t result = reply.readInt32();
+ return result;
+ }
+
+ virtual status_t setTransform(uint32_t transform) {
+ Parcel data, reply;
+ data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
+ data.writeInt32(transform);
+ remote()->transact(SET_TRANSFORM, data, &reply);
+ status_t result = reply.readInt32();
+ return result;
+ }
+};
+
+IMPLEMENT_META_INTERFACE(SurfaceTexture, "android.gui.SurfaceTexture");
+
+// ----------------------------------------------------------------------
+
+status_t BnSurfaceTexture::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case REQUEST_BUFFER: {
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ int bufferIdx = data.readInt32();
+ uint32_t w = data.readInt32();
+ uint32_t h = data.readInt32();
+ uint32_t format = data.readInt32();
+ uint32_t usage = data.readInt32();
+ sp<GraphicBuffer> buffer(requestBuffer(bufferIdx, w, h, format,
+ usage));
+ reply->writeInt32(buffer != 0);
+ if (buffer != 0) {
+ reply->write(*buffer);
+ }
+ return NO_ERROR;
+ } break;
+ case SET_BUFFER_COUNT: {
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ int bufferCount = data.readInt32();
+ int result = setBufferCount(bufferCount);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ case DEQUEUE_BUFFER: {
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ int buf;
+ int result = dequeueBuffer(&buf);
+ reply->writeInt32(buf);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ case QUEUE_BUFFER: {
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ int buf = data.readInt32();
+ status_t result = queueBuffer(buf);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ case CANCEL_BUFFER: {
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ int buf = data.readInt32();
+ cancelBuffer(buf);
+ return NO_ERROR;
+ } break;
+ case SET_CROP: {
+ Rect reg;
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ reg.left = data.readFloat();
+ reg.top = data.readFloat();
+ reg.right = data.readFloat();
+ reg.bottom = data.readFloat();
+ status_t result = setCrop(reg);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ case SET_TRANSFORM: {
+ Rect reg;
+ CHECK_INTERFACE(ISurfaceTexture, data, reply);
+ uint32_t transform = data.readInt32();
+ status_t result = setTransform(transform);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ }
+ return BBinder::onTransact(code, data, reply, flags);
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
new file mode 100644
index 0000000..9579996
--- /dev/null
+++ b/libs/gui/SurfaceTexture.cpp
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SurfaceTexture"
+
+#define GL_GLEXT_PROTOTYPES
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include <gui/SurfaceTexture.h>
+
+#include <surfaceflinger/ISurfaceComposer.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
+
+#include <utils/Log.h>
+
+namespace android {
+
+SurfaceTexture::SurfaceTexture(GLuint tex) :
+ mBufferCount(MIN_BUFFER_SLOTS), mCurrentTexture(INVALID_BUFFER_SLOT),
+ mLastQueued(INVALID_BUFFER_SLOT), mTexName(tex) {
+}
+
+SurfaceTexture::~SurfaceTexture() {
+ freeAllBuffers();
+}
+
+status_t SurfaceTexture::setBufferCount(int bufferCount) {
+ Mutex::Autolock lock(mMutex);
+ freeAllBuffers();
+ mBufferCount = bufferCount;
+ return OK;
+}
+
+sp<GraphicBuffer> SurfaceTexture::requestBuffer(int buf,
+ uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
+ Mutex::Autolock lock(mMutex);
+ if (buf < 0 || mBufferCount <= buf) {
+ LOGE("requestBuffer: slot index out of range [0, %d]: %d",
+ mBufferCount, buf);
+ return 0;
+ }
+ usage |= GraphicBuffer::USAGE_HW_TEXTURE;
+ sp<ISurfaceComposer> composer(ComposerService::getComposerService());
+ sp<GraphicBuffer> graphicBuffer(composer->createGraphicBuffer(w, h,
+ format, usage));
+ if (graphicBuffer == 0) {
+ LOGE("requestBuffer: SurfaceComposer::createGraphicBuffer failed");
+ } else {
+ mSlots[buf].mGraphicBuffer = graphicBuffer;
+ if (mSlots[buf].mEglImage != EGL_NO_IMAGE_KHR) {
+ eglDestroyImageKHR(mSlots[buf].mEglDisplay, mSlots[buf].mEglImage);
+ mSlots[buf].mEglImage = EGL_NO_IMAGE_KHR;
+ mSlots[buf].mEglDisplay = EGL_NO_DISPLAY;
+ }
+ }
+ return graphicBuffer;
+}
+
+status_t SurfaceTexture::dequeueBuffer(int *buf) {
+ Mutex::Autolock lock(mMutex);
+ int found = INVALID_BUFFER_SLOT;
+ for (int i = 0; i < mBufferCount; i++) {
+ if (!mSlots[i].mOwnedByClient && i != mCurrentTexture) {
+ mSlots[i].mOwnedByClient = true;
+ found = i;
+ break;
+ }
+ }
+ if (found == INVALID_BUFFER_SLOT) {
+ return -EBUSY;
+ }
+ *buf = found;
+ return OK;
+}
+
+status_t SurfaceTexture::queueBuffer(int buf) {
+ Mutex::Autolock lock(mMutex);
+ if (buf < 0 || mBufferCount <= buf) {
+ LOGE("queueBuffer: slot index out of range [0, %d]: %d",
+ mBufferCount, buf);
+ return -EINVAL;
+ } else if (!mSlots[buf].mOwnedByClient) {
+ LOGE("queueBuffer: slot %d is not owned by the client", buf);
+ return -EINVAL;
+ } else if (mSlots[buf].mGraphicBuffer == 0) {
+ LOGE("queueBuffer: slot %d was enqueued without requesting a buffer",
+ buf);
+ return -EINVAL;
+ }
+ mSlots[buf].mOwnedByClient = false;
+ mLastQueued = buf;
+ return OK;
+}
+
+void SurfaceTexture::cancelBuffer(int buf) {
+ Mutex::Autolock lock(mMutex);
+ if (buf < 0 || mBufferCount <= buf) {
+ LOGE("cancelBuffer: slot index out of range [0, %d]: %d", mBufferCount,
+ buf);
+ return;
+ } else if (!mSlots[buf].mOwnedByClient) {
+ LOGE("cancelBuffer: slot %d is not owned by the client", buf);
+ return;
+ }
+ mSlots[buf].mOwnedByClient = false;
+}
+
+status_t SurfaceTexture::setCrop(const Rect& reg) {
+ Mutex::Autolock lock(mMutex);
+ // XXX: How should we handle crops?
+ return OK;
+}
+
+status_t SurfaceTexture::setTransform(uint32_t transform) {
+ Mutex::Autolock lock(mMutex);
+ // XXX: How should we handle transforms?
+ return OK;
+}
+
+status_t SurfaceTexture::updateTexImage() {
+ Mutex::Autolock lock(mMutex);
+
+ // We always bind the texture even if we don't update its contents.
+ glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTexName);
+
+ // Initially both mCurrentTexture and mLastQueued are INVALID_BUFFER_SLOT,
+ // so this check will fail until a buffer gets queued.
+ if (mCurrentTexture != mLastQueued) {
+ // XXX: Figure out the right target.
+ mCurrentTexture = mLastQueued;
+ EGLImageKHR image = mSlots[mCurrentTexture].mEglImage;
+ if (image == EGL_NO_IMAGE_KHR) {
+ EGLDisplay dpy = eglGetCurrentDisplay();
+ sp<GraphicBuffer> graphicBuffer = mSlots[mCurrentTexture].mGraphicBuffer;
+ image = createImage(dpy, graphicBuffer);
+ mSlots[mCurrentTexture].mEglImage = image;
+ mSlots[mCurrentTexture].mEglDisplay = dpy;
+ }
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)image);
+ GLint error = glGetError();
+ if (error != GL_NO_ERROR) {
+ LOGE("error binding external texture image %p (slot %d): %#04x",
+ image, mCurrentTexture, error);
+ return -EINVAL;
+ }
+ }
+ return OK;
+}
+
+void SurfaceTexture::freeAllBuffers() {
+ for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
+ mSlots[i].mGraphicBuffer = 0;
+ mSlots[i].mOwnedByClient = false;
+ if (mSlots[i].mEglImage != EGL_NO_IMAGE_KHR) {
+ eglDestroyImageKHR(mSlots[i].mEglDisplay, mSlots[i].mEglImage);
+ mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
+ mSlots[i].mEglDisplay = EGL_NO_DISPLAY;
+ }
+ }
+}
+
+EGLImageKHR SurfaceTexture::createImage(EGLDisplay dpy,
+ const sp<GraphicBuffer>& graphicBuffer) {
+ EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer();
+ EGLint attrs[] = {
+ EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
+ EGL_NONE,
+ };
+ EGLImageKHR image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT,
+ EGL_NATIVE_BUFFER_ANDROID, cbuf, attrs);
+ EGLint error = eglGetError();
+ if (error != EGL_SUCCESS) {
+ LOGE("error creating EGLImage: %#x", error);
+ } else if (image == EGL_NO_IMAGE_KHR) {
+ LOGE("no error reported, but no image was returned by "
+ "eglCreateImageKHR");
+ }
+ return image;
+}
+
+}; // namespace android
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
new file mode 100644
index 0000000..8a59144
--- /dev/null
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SurfaceTextureClient"
+
+#include <gui/SurfaceTextureClient.h>
+
+#include <utils/Log.h>
+
+namespace android {
+
+SurfaceTextureClient::SurfaceTextureClient(
+ const sp<ISurfaceTexture>& surfaceTexture):
+ mSurfaceTexture(surfaceTexture), mReqWidth(1), mReqHeight(1),
+ mReqFormat(DEFAULT_FORMAT), mReqUsage(0), mMutex() {
+ // Initialize the ANativeWindow function pointers.
+ ANativeWindow::setSwapInterval = setSwapInterval;
+ ANativeWindow::dequeueBuffer = dequeueBuffer;
+ ANativeWindow::cancelBuffer = cancelBuffer;
+ ANativeWindow::lockBuffer = lockBuffer;
+ ANativeWindow::queueBuffer = queueBuffer;
+ ANativeWindow::query = query;
+ ANativeWindow::perform = perform;
+}
+
+int SurfaceTextureClient::setSwapInterval(ANativeWindow* window, int interval) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->setSwapInterval(interval);
+}
+
+int SurfaceTextureClient::dequeueBuffer(ANativeWindow* window,
+ android_native_buffer_t** buffer) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->dequeueBuffer(buffer);
+}
+
+int SurfaceTextureClient::cancelBuffer(ANativeWindow* window,
+ android_native_buffer_t* buffer) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->cancelBuffer(buffer);
+}
+
+int SurfaceTextureClient::lockBuffer(ANativeWindow* window,
+ android_native_buffer_t* buffer) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->lockBuffer(buffer);
+}
+
+int SurfaceTextureClient::queueBuffer(ANativeWindow* window,
+ android_native_buffer_t* buffer) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->queueBuffer(buffer);
+}
+
+int SurfaceTextureClient::query(ANativeWindow* window, int what, int* value) {
+ SurfaceTextureClient* c = getSelf(window);
+ return c->query(what, value);
+}
+
+int SurfaceTextureClient::perform(ANativeWindow* window, int operation, ...) {
+ va_list args;
+ va_start(args, operation);
+ SurfaceTextureClient* c = getSelf(window);
+ return c->perform(operation, args);
+}
+
+int SurfaceTextureClient::setSwapInterval(int interval) {
+ return INVALID_OPERATION;
+}
+
+int SurfaceTextureClient::dequeueBuffer(android_native_buffer_t** buffer) {
+ Mutex::Autolock lock(mMutex);
+ int buf = -1;
+ status_t err = mSurfaceTexture->dequeueBuffer(&buf);
+ if (err < 0) {
+ return err;
+ }
+ sp<GraphicBuffer>& gbuf(mSlots[buf]);
+ if (gbuf == 0 || gbuf->getWidth() != mReqWidth ||
+ gbuf->getHeight() != mReqHeight ||
+ uint32_t(gbuf->getPixelFormat()) != mReqFormat ||
+ (gbuf->getUsage() & mReqUsage) != mReqUsage) {
+ gbuf = mSurfaceTexture->requestBuffer(buf, mReqWidth, mReqHeight,
+ mReqFormat, mReqUsage);
+ if (gbuf == 0) {
+ return NO_MEMORY;
+ }
+ }
+ *buffer = gbuf.get();
+ return OK;
+}
+
+int SurfaceTextureClient::cancelBuffer(android_native_buffer_t* buffer) {
+ Mutex::Autolock lock(mMutex);
+ for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
+ if (mSlots[i].get() == buffer) {
+ mSurfaceTexture->cancelBuffer(i);
+ return OK;
+ }
+ }
+ return BAD_VALUE;
+}
+
+int SurfaceTextureClient::lockBuffer(android_native_buffer_t* buffer) {
+ Mutex::Autolock lock(mMutex);
+ return OK;
+}
+
+int SurfaceTextureClient::queueBuffer(android_native_buffer_t* buffer) {
+ Mutex::Autolock lock(mMutex);
+ for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
+ if (mSlots[i].get() == GraphicBuffer::getSelf(buffer)) {
+ return mSurfaceTexture->queueBuffer(i);
+ }
+ }
+ LOGE("queueBuffer: unknown buffer queued");
+ return BAD_VALUE;
+}
+
+int SurfaceTextureClient::query(int what, int* value) {
+ Mutex::Autolock lock(mMutex);
+ // XXX: Implement this!
+ return INVALID_OPERATION;
+}
+
+int SurfaceTextureClient::perform(int operation, va_list args)
+{
+ int res = NO_ERROR;
+ switch (operation) {
+ case NATIVE_WINDOW_CONNECT:
+ res = dispatchConnect(args);
+ break;
+ case NATIVE_WINDOW_DISCONNECT:
+ res = dispatchDisconnect(args);
+ break;
+ case NATIVE_WINDOW_SET_USAGE:
+ res = dispatchSetUsage(args);
+ break;
+ case NATIVE_WINDOW_SET_CROP:
+ res = dispatchSetCrop(args);
+ break;
+ case NATIVE_WINDOW_SET_BUFFER_COUNT:
+ res = dispatchSetBufferCount(args);
+ break;
+ case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
+ res = dispatchSetBuffersGeometry(args);
+ break;
+ case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
+ res = dispatchSetBuffersTransform(args);
+ break;
+ default:
+ res = NAME_NOT_FOUND;
+ break;
+ }
+ return res;
+}
+
+int SurfaceTextureClient::dispatchConnect(va_list args) {
+ int api = va_arg(args, int);
+ return connect(api);
+}
+
+int SurfaceTextureClient::dispatchDisconnect(va_list args) {
+ int api = va_arg(args, int);
+ return disconnect(api);
+}
+
+int SurfaceTextureClient::dispatchSetUsage(va_list args) {
+ int usage = va_arg(args, int);
+ return setUsage(usage);
+}
+
+int SurfaceTextureClient::dispatchSetCrop(va_list args) {
+ android_native_rect_t const* rect = va_arg(args, android_native_rect_t*);
+ return setCrop(reinterpret_cast<Rect const*>(rect));
+}
+
+int SurfaceTextureClient::dispatchSetBufferCount(va_list args) {
+ size_t bufferCount = va_arg(args, size_t);
+ return setBufferCount(bufferCount);
+}
+
+int SurfaceTextureClient::dispatchSetBuffersGeometry(va_list args) {
+ int w = va_arg(args, int);
+ int h = va_arg(args, int);
+ int f = va_arg(args, int);
+ return setBuffersGeometry(w, h, f);
+}
+
+int SurfaceTextureClient::dispatchSetBuffersTransform(va_list args) {
+ int transform = va_arg(args, int);
+ return setBuffersTransform(transform);
+}
+
+int SurfaceTextureClient::connect(int api) {
+ // XXX: Implement this!
+ return INVALID_OPERATION;
+}
+
+int SurfaceTextureClient::disconnect(int api) {
+ // XXX: Implement this!
+ return INVALID_OPERATION;
+}
+
+int SurfaceTextureClient::setUsage(uint32_t reqUsage)
+{
+ Mutex::Autolock lock(mMutex);
+ mReqUsage = reqUsage;
+ return OK;
+}
+
+int SurfaceTextureClient::setCrop(Rect const* rect)
+{
+ Mutex::Autolock lock(mMutex);
+
+ // empty/invalid rects are not allowed
+ if (rect->isEmpty())
+ return BAD_VALUE;
+
+ status_t err = mSurfaceTexture->setCrop(*rect);
+ LOGE_IF(err, "ISurfaceTexture::setCrop(...) returned %s",
+ strerror(-err));
+
+ return err;
+}
+
+int SurfaceTextureClient::setBufferCount(int bufferCount)
+{
+ Mutex::Autolock lock(mMutex);
+
+ status_t err = mSurfaceTexture->setBufferCount(bufferCount);
+ LOGE_IF(err, "ISurfaceTexture::setBufferCount(%d) returned %s",
+ bufferCount, strerror(-err));
+
+ if (err == NO_ERROR) {
+ freeAllBuffers();
+ }
+
+ return err;
+}
+
+int SurfaceTextureClient::setBuffersGeometry(int w, int h, int format)
+{
+ Mutex::Autolock lock(mMutex);
+
+ if (w<0 || h<0 || format<0)
+ return BAD_VALUE;
+
+ if ((w && !h) || (!w && h))
+ return BAD_VALUE;
+
+ mReqWidth = w;
+ mReqHeight = h;
+ mReqFormat = format;
+
+ return NO_ERROR;
+}
+
+int SurfaceTextureClient::setBuffersTransform(int transform)
+{
+ Mutex::Autolock lock(mMutex);
+ status_t err = mSurfaceTexture->setTransform(transform);
+ return err;
+}
+
+void SurfaceTextureClient::freeAllBuffers() {
+ for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
+ mSlots[i] = 0;
+ }
+}
+
+}; // namespace android