status_t GonkBufferQueue::dequeueBuffer(int *outBuf, sp<Fence>* outFence,
uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
ST_LOGV("dequeueBuffer: w=%d h=%d fmt=%#x usage=%#x", w, h, format, usage);
if ((w && !h) || (!w && h)) {
ST_LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
return BAD_VALUE;
}
status_t returnFlags(OK);
int buf = INVALID_BUFFER_SLOT;
{ // Scope for the lock
Mutex::Autolock lock(mMutex);
if (format == 0) {
format = mDefaultBufferFormat;
}
// turn on usage bits the consumer requested
usage |= mConsumerUsageBits;
int found = -1;
int dequeuedCount = 0;
bool tryAgain = true;
while (tryAgain) {
if (mAbandoned) {
ST_LOGE("dequeueBuffer: GonkBufferQueue has been abandoned!");
return NO_INIT;
}
const int maxBufferCount = getMaxBufferCountLocked();
// Free up any buffers that are in slots beyond the max buffer
// count.
//for (int i = maxBufferCount; i < NUM_BUFFER_SLOTS; i++) {
// assert(mSlots[i].mBufferState == BufferSlot::FREE);
// if (mSlots[i].mGraphicBuffer != NULL) {
// freeBufferLocked(i);
// returnFlags |= IGraphicBufferProducer::RELEASE_ALL_BUFFERS;
// }
//}
// look for a free buffer to give to the client
found = INVALID_BUFFER_SLOT;
dequeuedCount = 0;
for (int i = 0; i < maxBufferCount; i++) {
const int state = mSlots[i].mBufferState;
if (state == BufferSlot::DEQUEUED) {
dequeuedCount++;
}
if (state == BufferSlot::FREE) {
/* We return the oldest of the free buffers to avoid
* stalling the producer if possible. This is because
* the consumer may still have pending reads of the
* buffers in flight.
*/
if ((found < 0) ||
mSlots[i].mFrameNumber < mSlots[found].mFrameNumber) {
found = i;
}
}
}
// clients are not allowed to dequeue more than one buffer
// if they didn't set a buffer count.
if (!mOverrideMaxBufferCount && dequeuedCount) {
ST_LOGE("dequeueBuffer: can't dequeue multiple buffers without "
"setting the buffer count");
return -EINVAL;
}
// See whether a buffer has been queued since the last
// setBufferCount so we know whether to perform the min undequeued
// buffers check below.
if (mBufferHasBeenQueued) {
// make sure the client is not trying to dequeue more buffers
// than allowed.
const int newUndequeuedCount = maxBufferCount - (dequeuedCount+1);
const int minUndequeuedCount = getMinUndequeuedBufferCountLocked();
if (newUndequeuedCount < minUndequeuedCount) {
ST_LOGE("dequeueBuffer: min undequeued buffer count (%d) "
"exceeded (dequeued=%d undequeudCount=%d)",
minUndequeuedCount, dequeuedCount,
newUndequeuedCount);
return -EBUSY;
}
}
// If no buffer is found, wait for a buffer to be released or for
// the max buffer count to change.
tryAgain = found == INVALID_BUFFER_SLOT;
if (tryAgain) {
mDequeueCondition.wait(mMutex);
}
}
if (found == INVALID_BUFFER_SLOT) {
// This should not happen.
ST_LOGE("dequeueBuffer: no available buffer slots");
return -EBUSY;
}
buf = found;
*outBuf = found;
const bool useDefaultSize = !w && !h;
if (useDefaultSize) {
// use the default size
w = mDefaultWidth;
h = mDefaultHeight;
}
mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
const sp<GraphicBuffer>& buffer(mSlots[buf].mGraphicBuffer);
if ((buffer == NULL) ||
(uint32_t(buffer->width) != w) ||
(uint32_t(buffer->height) != h) ||
(uint32_t(buffer->format) != format) ||
((uint32_t(buffer->usage) & usage) != usage))
{
mSlots[buf].mAcquireCalled = false;
mSlots[buf].mGraphicBuffer = NULL;
mSlots[buf].mRequestBufferCalled = false;
mSlots[buf].mFence = Fence::NO_FENCE;
if (mSlots[buf].mTextureClient) {
mSlots[buf].mTextureClient->ClearRecycleCallback();
// release TextureClient in ImageBridge thread
RefPtr<TextureClientReleaseTask> task =
MakeAndAddRef<TextureClientReleaseTask>(mSlots[buf].mTextureClient);
mSlots[buf].mTextureClient = NULL;
ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(task.forget());
}
returnFlags |= IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION;
}
*outFence = mSlots[buf].mFence;
mSlots[buf].mFence = Fence::NO_FENCE;
} // end lock scope
sp<GraphicBuffer> graphicBuffer;
if (returnFlags & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) {
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
RefPtr<LayersIPCChannel> allocator = ImageBridgeChild::GetSingleton();
GrallocTextureData* texData = GrallocTextureData::Create(IntSize(w,h), format,
gfx::BackendType::NONE, usage,
allocator);
if (!texData) {
ST_LOGE("dequeueBuffer: failed to alloc gralloc buffer");
return -ENOMEM;
}
RefPtr<TextureClient> textureClient = new TextureClient(texData, TextureFlags::RECYCLE | TextureFlags::DEALLOCATE_CLIENT, allocator);
sp<GraphicBuffer> graphicBuffer = texData->GetGraphicBuffer();
{ // Scope for the lock
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
ST_LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
return NO_INIT;
}
mSlots[buf].mGraphicBuffer = graphicBuffer;
mSlots[buf].mTextureClient = textureClient;
ST_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle);
//mSlots[*outBuf].mGraphicBuffer = graphicBuffer;
}
}
ST_LOGV("dequeueBuffer: returning slot=%d buf=%p flags=%#x", *outBuf,
mSlots[*outBuf].mGraphicBuffer->handle, returnFlags);
return returnFlags;
}
status_t GonkNativeWindow::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
uint32_t format, uint32_t usage)
{
if ((w && !h) || (!w && h)) {
CNW_LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
return BAD_VALUE;
}
status_t returnFlags(OK);
bool updateFormat = false;
bool alloc = false;
int buf = INVALID_BUFFER_SLOT;
{
Mutex::Autolock lock(mMutex);
int found = -1;
int dequeuedCount = 0;
int renderingCount = 0;
bool tryAgain = true;
CNW_LOGD("dequeueBuffer: E");
while (tryAgain) {
if (mAbandoned) {
CNW_LOGE("dequeueBuffer: GonkNativeWindow has been abandoned!");
return NO_INIT;
}
// look for a free buffer to give to the client
found = INVALID_BUFFER_SLOT;
dequeuedCount = 0;
renderingCount = 0;
for (int i = 0; i < mBufferCount; i++) {
const int state = mSlots[i].mBufferState;
switch (state) {
case BufferSlot::DEQUEUED:
CNW_LOGD("dequeueBuffer: slot %d is DEQUEUED\n", i);
dequeuedCount++;
break;
case BufferSlot::RENDERING:
CNW_LOGD("dequeueBuffer: slot %d is RENDERING\n", i);
renderingCount++;
break;
case BufferSlot::FREE:
CNW_LOGD("dequeueBuffer: slot %d is FREE\n", i);
/* We return the oldest of the free buffers to avoid
* stalling the producer if possible. This is because
* the consumer may still have pending reads of the
* buffers in flight.
*/
if (found < 0 ||
mSlots[i].mFrameNumber < mSlots[found].mFrameNumber) {
found = i;
}
break;
default:
CNW_LOGD("dequeueBuffer: slot %d is %d\n", i, state);
break;
}
}
// See whether a buffer has been in RENDERING state since the last
// setBufferCount so we know whether to perform the
// MIN_UNDEQUEUED_BUFFERS check below.
if (renderingCount > 0) {
// make sure the client is not trying to dequeue more buffers
// than allowed.
const int avail = mBufferCount - (dequeuedCount + 1);
if (avail < MIN_UNDEQUEUED_BUFFERS) {
CNW_LOGE("dequeueBuffer: MIN_UNDEQUEUED_BUFFERS=%d exceeded "
"(dequeued=%d)",
MIN_UNDEQUEUED_BUFFERS,
dequeuedCount);
return -EBUSY;
}
}
// we're in synchronous mode and didn't find a buffer, we need to
// wait for some buffers to be consumed
tryAgain = (found == INVALID_BUFFER_SLOT);
if (tryAgain) {
CNW_LOGD("dequeueBuffer: Try again");
mDequeueCondition.wait(mMutex);
CNW_LOGD("dequeueBuffer: Now");
}
}
if (found == INVALID_BUFFER_SLOT) {
// This should not happen.
CNW_LOGE("dequeueBuffer: no available buffer slots");
return -EBUSY;
}
buf = found;
*outBuf = found;
const bool useDefaultSize = !w && !h;
if (useDefaultSize) {
// use the default size
w = mDefaultWidth;
h = mDefaultHeight;
}
updateFormat = (format != 0);
if (!updateFormat) {
// keep the current (or default) format
format = mPixelFormat;
}
mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
const sp<GraphicBuffer>& gbuf(mSlots[buf].mGraphicBuffer);
if ((gbuf == NULL) ||
((uint32_t(gbuf->width) != w) ||
(uint32_t(gbuf->height) != h) ||
(uint32_t(gbuf->format) != format) ||
((uint32_t(gbuf->usage) & usage) != usage))) {
mSlots[buf].mGraphicBuffer = NULL;
mSlots[buf].mRequestBufferCalled = false;
if (mSlots[buf].mTextureClient) {
mSlots[buf].mTextureClient->ClearRecycleCallback();
// release TextureClient in ImageBridge thread
RefPtr<TextureClientReleaseTask> task =
MakeAndAddRef<TextureClientReleaseTask>(mSlots[buf].mTextureClient);
mSlots[buf].mTextureClient = NULL;
ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(task.forget());
}
alloc = true;
}
} // end lock scope
if (alloc) {
ClientIPCAllocator* allocator = ImageBridgeChild::GetSingleton();
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
GrallocTextureData* texData = GrallocTextureData::Create(IntSize(w, h), format,
gfx::BackendType::NONE, usage,
allocator);
if (!texData) {
return -ENOMEM;
}
RefPtr<TextureClient> textureClient = new TextureClient(texData, TextureFlags::DEALLOCATE_CLIENT, allocator);
{ // Scope for the lock
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
CNW_LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
return NO_INIT;
}
if (updateFormat) {
mPixelFormat = format;
}
mSlots[buf].mGraphicBuffer = texData->GetGraphicBuffer();
mSlots[buf].mTextureClient = textureClient;
returnFlags |= ISurfaceTexture::BUFFER_NEEDS_REALLOCATION;
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle);
}
}
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle );
CNW_LOGD("dequeueBuffer: X");
return returnFlags;
}
/*static*/ UniquePtr<SharedSurface_Gralloc>
SharedSurface_Gralloc::Create(GLContext* prodGL,
const GLFormats& formats,
const gfx::IntSize& size,
bool hasAlpha,
layers::TextureFlags flags,
LayersIPCChannel* allocator)
{
GLLibraryEGL* egl = &sEGLLibrary;
MOZ_ASSERT(egl);
UniquePtr<SharedSurface_Gralloc> ret;
DEBUG_PRINT("SharedSurface_Gralloc::Create -------\n");
if (!HasExtensions(egl, prodGL))
return Move(ret);
gfxContentType type = hasAlpha ? gfxContentType::COLOR_ALPHA
: gfxContentType::COLOR;
GrallocTextureData* texData = GrallocTextureData::CreateForGLRendering(
size, gfxPlatform::GetPlatform()->Optimal2DFormatForContent(type), allocator
);
if (!texData) {
return Move(ret);
}
RefPtr<TextureClient> grallocTC = new TextureClient(texData, flags, allocator);
sp<GraphicBuffer> buffer = texData->GetGraphicBuffer();
EGLDisplay display = egl->Display();
EGLClientBuffer clientBuffer = buffer->getNativeBuffer();
EGLint attrs[] = {
LOCAL_EGL_NONE, LOCAL_EGL_NONE
};
EGLImage image = egl->fCreateImage(display,
EGL_NO_CONTEXT,
LOCAL_EGL_NATIVE_BUFFER_ANDROID,
clientBuffer, attrs);
if (!image) {
return Move(ret);
}
prodGL->MakeCurrent();
GLuint prodTex = 0;
prodGL->fGenTextures(1, &prodTex);
ScopedBindTexture autoTex(prodGL, prodTex);
prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR);
prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR);
prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
prodGL->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, image);
egl->fDestroyImage(display, image);
ret.reset( new SharedSurface_Gralloc(prodGL, size, hasAlpha, egl,
allocator, grallocTC,
prodTex) );
DEBUG_PRINT("SharedSurface_Gralloc::Create: success -- surface %p,"
" GraphicBuffer %p.\n",
ret.get(), buffer.get());
return Move(ret);
}
status_t GonkBufferQueueProducer::dequeueBuffer(int *outSlot,
sp<android::Fence> *outFence, bool async,
uint32_t width, uint32_t height, uint32_t format, uint32_t usage) {
ATRACE_CALL();
{ // Autolock scope
Mutex::Autolock lock(mCore->mMutex);
mConsumerName = mCore->mConsumerName;
} // Autolock scope
ALOGV("dequeueBuffer: async=%s w=%u h=%u format=%#x, usage=%#x",
async ? "true" : "false", width, height, format, usage);
if ((width && !height) || (!width && height)) {
ALOGE("dequeueBuffer: invalid size: w=%u h=%u", width, height);
return BAD_VALUE;
}
status_t returnFlags = NO_ERROR;
// Reset slot
*outSlot = GonkBufferQueueCore::INVALID_BUFFER_SLOT;
bool attachedByConsumer = false;
{ // Autolock scope
Mutex::Autolock lock(mCore->mMutex);
mCore->waitWhileAllocatingLocked();
if (format == 0) {
format = mCore->mDefaultBufferFormat;
}
// Enable the usage bits the consumer requested
usage |= mCore->mConsumerUsageBits;
int found;
status_t status = waitForFreeSlotThenRelock("dequeueBuffer", async,
&found, &returnFlags);
if (status != NO_ERROR) {
return status;
}
// This should not happen
if (found == GonkBufferQueueCore::INVALID_BUFFER_SLOT) {
ALOGE("dequeueBuffer: no available buffer slots");
return -EBUSY;
}
*outSlot = found;
attachedByConsumer = mSlots[found].mAttachedByConsumer;
const bool useDefaultSize = !width && !height;
if (useDefaultSize) {
width = mCore->mDefaultWidth;
height = mCore->mDefaultHeight;
}
mSlots[found].mBufferState = GonkBufferSlot::DEQUEUED;
const sp<GraphicBuffer>& buffer(mSlots[found].mGraphicBuffer);
if ((buffer == NULL) ||
(static_cast<uint32_t>(buffer->width) != width) ||
(static_cast<uint32_t>(buffer->height) != height) ||
(static_cast<uint32_t>(buffer->format) != format) ||
((static_cast<uint32_t>(buffer->usage) & usage) != usage))
{
mSlots[found].mAcquireCalled = false;
mSlots[found].mGraphicBuffer = NULL;
mSlots[found].mRequestBufferCalled = false;
mSlots[found].mFence = Fence::NO_FENCE;
if (mSlots[found].mTextureClient) {
mSlots[found].mTextureClient->ClearRecycleCallback();
// release TextureClient in ImageBridge thread
TextureClientReleaseTask* task = new TextureClientReleaseTask(mSlots[found].mTextureClient);
mSlots[found].mTextureClient = NULL;
ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(FROM_HERE, task);
}
returnFlags |= BUFFER_NEEDS_REALLOCATION;
}
if (CC_UNLIKELY(mSlots[found].mFence == NULL)) {
ALOGE("dequeueBuffer: about to return a NULL fence - "
"slot=%d w=%d h=%d format=%u",
found, buffer->width, buffer->height, buffer->format);
}
*outFence = mSlots[found].mFence;
mSlots[found].mFence = Fence::NO_FENCE;
} // Autolock scope
if (returnFlags & BUFFER_NEEDS_REALLOCATION) {
ISurfaceAllocator* allocator = ImageBridgeChild::GetSingleton();
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
GrallocTextureData* texData = GrallocTextureData::Create(IntSize(width,height), format,
gfx::BackendType::NONE,
usage, allocator);
if (!texData) {
ALOGE("dequeueBuffer: failed to alloc gralloc buffer");
return -ENOMEM;
}
RefPtr<TextureClient> textureClient = TextureClient::CreateWithData(
texData, TextureFlags::DEALLOCATE_CLIENT, allocator);
sp<GraphicBuffer> graphicBuffer = texData->GetGraphicBuffer();
{ // Autolock scope
Mutex::Autolock lock(mCore->mMutex);
if (mCore->mIsAbandoned) {
ALOGE("dequeueBuffer: GonkBufferQueue has been abandoned");
return NO_INIT;
}
mSlots[*outSlot].mFrameNumber = UINT32_MAX;
mSlots[*outSlot].mGraphicBuffer = graphicBuffer;
mSlots[*outSlot].mTextureClient = textureClient;
} // Autolock scope
}
if (attachedByConsumer) {
returnFlags |= BUFFER_NEEDS_REALLOCATION;
}
ALOGV("dequeueBuffer: returning slot=%d/%" PRIu64 " buf=%p flags=%#x",
*outSlot,
mSlots[*outSlot].mFrameNumber,
mSlots[*outSlot].mGraphicBuffer->handle, returnFlags);
return returnFlags;
}