uint32_t HTMLVideoElement::MozPaintedFrames()
{
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread.");
if (!sVideoStatsEnabled) {
return 0;
}
layers::ImageContainer* container = GetImageContainer();
return container ? container->GetPaintCount() : 0;
}
uint32_t HTMLVideoElement::MozPaintedFrames() {
MOZ_ASSERT(NS_IsMainThread(), "Should be on main thread.");
if (!IsVideoStatsEnabled()) {
return 0;
}
if (nsContentUtils::ShouldResistFingerprinting(OwnerDoc())) {
return nsRFPService::GetSpoofedPresentedFrames(TotalPlayTime(),
VideoWidth(), VideoHeight());
}
layers::ImageContainer* container = GetImageContainer();
return container ? container->GetPaintCount() : 0;
}
void CanvasImageCache::NotifyDrawImage(Element* aImage,
HTMLCanvasElement* aCanvas,
SourceSurface* aSource,
const IntSize& aSize) {
if (!gImageCache) {
gImageCache = new ImageCache();
nsContentUtils::RegisterShutdownObserver(
new CanvasImageCacheShutdownObserver());
}
nsCOMPtr<imgIContainer> imgContainer = GetImageContainer(aImage);
if (!imgContainer) {
return;
}
AllCanvasImageCacheKey allCanvasCacheKey(imgContainer);
ImageCacheKey canvasCacheKey(imgContainer, aCanvas);
ImageCacheEntry* entry = gImageCache->mCache.PutEntry(canvasCacheKey);
if (entry) {
if (entry->mData->mSourceSurface) {
// We are overwriting an existing entry.
gImageCache->mTotal -= entry->mData->SizeInBytes();
gImageCache->RemoveObject(entry->mData);
gImageCache->mAllCanvasCache.RemoveEntry(allCanvasCacheKey);
}
gImageCache->AddObject(entry->mData);
entry->mData->mSourceSurface = aSource;
entry->mData->mSize = aSize;
gImageCache->mTotal += entry->mData->SizeInBytes();
AllCanvasImageCacheEntry* allEntry =
gImageCache->mAllCanvasCache.PutEntry(allCanvasCacheKey);
if (allEntry) {
allEntry->mSourceSurface = aSource;
}
}
if (!sCanvasImageCacheLimit) return;
// Expire the image cache early if its larger than we want it to be.
while (gImageCache->mTotal > size_t(sCanvasImageCacheLimit))
gImageCache->AgeOneGeneration();
}
SourceSurface* CanvasImageCache::LookupAllCanvas(Element* aImage) {
if (!gImageCache) {
return nullptr;
}
nsCOMPtr<imgIContainer> imgContainer = GetImageContainer(aImage);
if (!imgContainer) {
return nullptr;
}
AllCanvasImageCacheEntry* entry = gImageCache->mAllCanvasCache.GetEntry(
AllCanvasImageCacheKey(imgContainer));
if (!entry) {
return nullptr;
}
return entry->mSourceSurface;
}
SourceSurface* CanvasImageCache::LookupCanvas(Element* aImage,
HTMLCanvasElement* aCanvas,
IntSize* aSizeOut) {
if (!gImageCache) {
return nullptr;
}
nsCOMPtr<imgIContainer> imgContainer = GetImageContainer(aImage);
if (!imgContainer) {
return nullptr;
}
ImageCacheEntry* entry =
gImageCache->mCache.GetEntry(ImageCacheKey(imgContainer, aCanvas));
if (!entry) {
return nullptr;
}
MOZ_ASSERT(aSizeOut);
gImageCache->MarkUsed(entry->mData);
*aSizeOut = entry->mData->mSize;
return entry->mData->mSourceSurface;
}
void VideoFrameContainer::SetCurrentFrames(const VideoSegment& aSegment)
{
if (aSegment.IsEmpty()) {
return;
}
MutexAutoLock lock(mMutex);
// Collect any new frames produced in this iteration.
AutoTArray<ImageContainer::NonOwningImage,4> newImages;
PrincipalHandle lastPrincipalHandle = PRINCIPAL_HANDLE_NONE;
VideoSegment::ConstChunkIterator iter(aSegment);
while (!iter.IsEnded()) {
VideoChunk chunk = *iter;
const VideoFrame* frame = &chunk.mFrame;
if (*frame == mLastPlayedVideoFrame) {
iter.Next();
continue;
}
Image* image = frame->GetImage();
CONTAINER_LOG(LogLevel::Verbose,
("VideoFrameContainer %p writing video frame %p (%d x %d)",
this, image, frame->GetIntrinsicSize().width,
frame->GetIntrinsicSize().height));
if (frame->GetForceBlack()) {
if (!mBlackImage) {
mBlackImage = GetImageContainer()->CreatePlanarYCbCrImage();
if (mBlackImage) {
// Sets the image to a single black pixel, which will be scaled to
// fill the rendered size.
SetImageToBlackPixel(mBlackImage->AsPlanarYCbCrImage());
}
}
if (mBlackImage) {
image = mBlackImage;
}
}
// Don't append null image to the newImages.
if (!image) {
iter.Next();
continue;
}
newImages.AppendElement(ImageContainer::NonOwningImage(image, chunk.mTimeStamp));
lastPrincipalHandle = chunk.GetPrincipalHandle();
mLastPlayedVideoFrame = *frame;
iter.Next();
}
// Don't update if there are no changes.
if (newImages.IsEmpty()) {
return;
}
AutoTArray<ImageContainer::NonOwningImage,4> images;
bool principalHandleChanged =
lastPrincipalHandle != PRINCIPAL_HANDLE_NONE &&
lastPrincipalHandle != GetLastPrincipalHandleLocked();
// Add the frames from this iteration.
for (auto& image : newImages) {
image.mFrameID = NewFrameID();
images.AppendElement(image);
}
if (principalHandleChanged) {
UpdatePrincipalHandleForFrameIDLocked(lastPrincipalHandle,
newImages.LastElement().mFrameID);
}
SetCurrentFramesLocked(mLastPlayedVideoFrame.GetIntrinsicSize(), images);
nsCOMPtr<nsIRunnable> event =
new VideoFrameContainerInvalidateRunnable(this);
mMainThread->Dispatch(event.forget());
images.ClearAndRetainStorage();
}