/*static*/void
gfxPlatform::InitOffMainThreadCompositing()
{
static bool inited;
if (inited) {
return;
}
inited = true;
bool useOffMainThreadCompositing = false;
#ifdef MOZ_X11
// On X11 platforms only use OMTC if firefox was initalized with thread-safe
// X11 (else it would crash).
useOffMainThreadCompositing = (PR_GetEnv("MOZ_USE_OMTC") != NULL);
#else
useOffMainThreadCompositing = Preferences::GetBool(
"layers.offmainthreadcomposition.enabled",
false);
#endif
printf_stderr("Are we using off-main-thread compositing? %s\n",
useOffMainThreadCompositing ? "yes" : "NO");
if (useOffMainThreadCompositing) {
CompositorParent::CreateCompositorMap();
CompositorParent::CreateThread();
ImageBridgeChild::Create(new base::Thread("ImageBridgeChild"));
ImageBridgeChild* imageBridgeChild = ImageBridgeChild::GetSingleton();
ImageBridgeParent* imageBridgeParent = new ImageBridgeParent(
CompositorParent::CompositorLoop());
imageBridgeChild->ConnectAsync(imageBridgeParent);
}
}
void GonkNativeWindow::freeBufferLocked(int i)
{
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
if (mSlots[i].mGraphicBuffer != NULL) {
// Don't destroy the gralloc buffer if it is still in the
// video stream awaiting rendering.
if (mSlots[i].mBufferState != BufferSlot::RENDERING) {
ibc->DeallocSurfaceDescriptorGralloc(mSlots[i].mSurfaceDescriptor);
}
mSlots[i].mGraphicBuffer = NULL;
mSlots[i].mBufferState = BufferSlot::FREE;
mSlots[i].mFrameNumber = 0;
}
}
void GonkNativeWindow::releaseBufferFreeListUnlocked(nsTArray<SurfaceDescriptor>& freeList)
{
// This function MUST ONLY be called with mMutex unlocked; else there
// is a risk of deadlock with the ImageBridge thread.
CNW_LOGD("releaseBufferFreeListUnlocked: E");
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
for (uint32_t i = 0; i < freeList.Length(); ++i) {
ibc->DeallocSurfaceDescriptorGralloc(freeList[i]);
}
freeList.Clear();
CNW_LOGD("releaseBufferFreeListUnlocked: X");
}
void CameraGraphicBuffer::Unlock() {
if (mLocked) {
android::sp<android::Fence> fence;
fence = mReleaseFenceHandle.IsValid() ? mReleaseFenceHandle.mFence : Fence::NO_FENCE;
// The window might have been destroyed. The buffer is no longer
// valid at that point.
sp<GonkNativeWindow> window = mNativeWindow.promote();
if (window.get() && window->returnBuffer(mIndex, mGeneration, fence)) {
mLocked = false;
} else {
// If the window doesn't exist any more, release the buffer
// directly.
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
ibc->DeallocSurfaceDescriptorGralloc(mSurfaceDescriptor);
}
}
}
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;
uint32_t generation;
bool alloc = false;
int buf = INVALID_BUFFER_SLOT;
SurfaceDescriptor descOld;
{
Mutex::Autolock lock(mMutex);
generation = mGeneration;
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;
if (state == BufferSlot::DEQUEUED) {
dequeuedCount++;
}
else if (state == BufferSlot::RENDERING) {
renderingCount++;
}
else 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;
}
}
}
// 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);
alloc = (gbuf == NULL);
if ((gbuf!=NULL) &&
((uint32_t(gbuf->width) != w) ||
(uint32_t(gbuf->height) != h) ||
(uint32_t(gbuf->format) != format) ||
((uint32_t(gbuf->usage) & usage) != usage))) {
alloc = true;
descOld = mSlots[buf].mSurfaceDescriptor;
}
}
// At this point, the buffer is now marked DEQUEUED, and no one else
// should touch it, except for freeAllBuffersLocked(); we handle that
// after trying to create the surface descriptor below.
//
// So we don't need mMutex locked, which would otherwise run the risk
// of a deadlock on calling AllocSurfaceDescriptorGralloc().
SurfaceDescriptor desc;
ImageBridgeChild* ibc;
sp<GraphicBuffer> graphicBuffer;
if (alloc) {
usage |= GraphicBuffer::USAGE_HW_TEXTURE;
status_t error;
ibc = ImageBridgeChild::GetSingleton();
CNW_LOGD("dequeueBuffer: about to alloc surface descriptor");
ibc->AllocSurfaceDescriptorGralloc(IntSize(w, h),
format,
usage,
&desc);
// We can only use a gralloc buffer here. If we didn't get
// one back, something went wrong.
CNW_LOGD("dequeueBuffer: got surface descriptor");
if (SurfaceDescriptor::TSurfaceDescriptorGralloc != desc.type()) {
MOZ_ASSERT(SurfaceDescriptor::T__None == desc.type());
CNW_LOGE("dequeueBuffer: failed to alloc gralloc buffer");
return -ENOMEM;
}
graphicBuffer = GrallocBufferActor::GetFrom(desc.get_SurfaceDescriptorGralloc());
error = graphicBuffer->initCheck();
if (error != NO_ERROR) {
CNW_LOGE("dequeueBuffer: createGraphicBuffer failed with error %d", error);
return error;
}
}
bool tooOld = false;
{
Mutex::Autolock lock(mMutex);
if (generation == mGeneration) {
if (updateFormat) {
mPixelFormat = format;
}
if (alloc) {
mSlots[buf].mGraphicBuffer = graphicBuffer;
mSlots[buf].mSurfaceDescriptor = desc;
mSlots[buf].mSurfaceDescriptor.get_SurfaceDescriptorGralloc().external() = true;
mSlots[buf].mRequestBufferCalled = false;
returnFlags |= ISurfaceTexture::BUFFER_NEEDS_REALLOCATION;
}
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle);
} else {
tooOld = true;
}
}
if (alloc && IsSurfaceDescriptorValid(descOld)) {
ibc->DeallocSurfaceDescriptorGralloc(descOld);
}
if (alloc && tooOld) {
ibc->DeallocSurfaceDescriptorGralloc(desc);
}
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle );
CNW_LOGD("dequeueBuffer: X");
return returnFlags;
}
void
GrallocPlanarYCbCrImage::SetData(const Data& aData)
{
NS_PRECONDITION(aData.mYSize.width % 2 == 0, "Image should have even width");
NS_PRECONDITION(aData.mYSize.height % 2 == 0, "Image should have even height");
NS_PRECONDITION(aData.mYStride % 16 == 0, "Image should have stride of multiple of 16 pixels");
mData = aData;
mSize = aData.mPicSize;
if (mSurfaceDescriptor.type() == SurfaceDescriptor::T__None) {
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
ibc->AllocSurfaceDescriptorGralloc(aData.mYSize,
HAL_PIXEL_FORMAT_YV12,
GraphicBuffer::USAGE_SW_READ_OFTEN |
GraphicBuffer::USAGE_SW_WRITE_OFTEN |
GraphicBuffer::USAGE_HW_TEXTURE,
&mSurfaceDescriptor);
}
sp<GraphicBuffer> graphicBuffer =
GrallocBufferActor::GetFrom(mSurfaceDescriptor.get_SurfaceDescriptorGralloc());
if (!graphicBuffer.get()) {
return;
}
if (graphicBuffer->initCheck() != NO_ERROR) {
return;
}
void* vaddr;
if (graphicBuffer->lock(GraphicBuffer::USAGE_SW_WRITE_OFTEN,
&vaddr) != OK) {
return;
}
uint8_t* yChannel = static_cast<uint8_t*>(vaddr);
gfxIntSize ySize = gfxIntSize(aData.mYSize.width,
aData.mYSize.height);
int32_t yStride = graphicBuffer->getStride();
uint8_t* vChannel = yChannel + (yStride * ySize.height);
gfxIntSize uvSize = gfxIntSize(ySize.width / 2,
ySize.height / 2);
// Align to 16 bytes boundary
int32_t uvStride = ((yStride / 2) + 15) & ~0x0F;
uint8_t* uChannel = vChannel + (uvStride * uvSize.height);
// Memory outside of the image width may not writable. If the stride
// equals to the image width then we can use only one copy.
if (yStride == mData.mYStride &&
yStride == ySize.width) {
memcpy(yChannel, mData.mYChannel, yStride * ySize.height);
} else {
for (int i = 0; i < ySize.height; i++) {
memcpy(yChannel + i * yStride,
mData.mYChannel + i * mData.mYStride,
ySize.width);
}
}
if (uvStride == mData.mCbCrStride &&
uvStride == uvSize.width) {
memcpy(uChannel, mData.mCbChannel, uvStride * uvSize.height);
memcpy(vChannel, mData.mCrChannel, uvStride * uvSize.height);
} else {
for (int i = 0; i < uvSize.height; i++) {
memcpy(uChannel + i * uvStride,
mData.mCbChannel + i * mData.mCbCrStride,
uvSize.width);
memcpy(vChannel + i * uvStride,
mData.mCrChannel + i * mData.mCbCrStride,
uvSize.width);
}
}
graphicBuffer->unlock();
}
GrallocPlanarYCbCrImage::~GrallocPlanarYCbCrImage()
{
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
ibc->DeallocSurfaceDescriptorGralloc(mSurfaceDescriptor);
}
int GonkNativeWindow::dequeueBuffer(android_native_buffer_t** buffer)
{
Mutex::Autolock lock(mMutex);
int found = -1;
int dequeuedCount = 0;
bool tryAgain = true;
CNW_LOGD("dequeueBuffer: E");
while (tryAgain) {
// look for a free buffer to give to the client
found = INVALID_BUFFER_SLOT;
dequeuedCount = 0;
for (int i = 0; i < mBufferCount; i++) {
const int state = mSlots[i].mBufferState;
if (state == BufferSlot::DEQUEUED) {
dequeuedCount++;
}
else 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.
*/
bool isOlder = mSlots[i].mFrameNumber < mSlots[found].mFrameNumber;
if (found < 0 || isOlder) {
found = i;
}
}
}
// 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;
}
const int buf = found;
// buffer is now in DEQUEUED
mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
const sp<GraphicBuffer>& gbuf(mSlots[buf].mGraphicBuffer);
if (gbuf == NULL) {
status_t error;
SurfaceDescriptor buffer;
ImageBridgeChild *ibc = ImageBridgeChild::GetSingleton();
ibc->AllocSurfaceDescriptorGralloc(gfxIntSize(mDefaultWidth, mDefaultHeight),
mPixelFormat,
mUsage,
&buffer);
sp<GraphicBuffer> graphicBuffer =
GrallocBufferActor::GetFrom(buffer.get_SurfaceDescriptorGralloc());
if (!graphicBuffer.get()) {
return -ENOMEM;
}
error = graphicBuffer->initCheck();
if (error != NO_ERROR) {
CNW_LOGE("dequeueBuffer: createGraphicBuffer failed with error %d",error);
return error;
}
mSlots[buf].mGraphicBuffer = graphicBuffer;
mSlots[buf].mSurfaceDescriptor = buffer;
mSlots[buf].mSurfaceDescriptor.get_SurfaceDescriptorGralloc().external() = true;
}
*buffer = mSlots[buf].mGraphicBuffer.get();
CNW_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
mSlots[buf].mGraphicBuffer->handle );
CNW_LOGD("dequeueBuffer: X");
return NO_ERROR;
}
