void
AnimationSurfaceProvider::CheckForNewFrameAtTerminalState()
{
mDecodingMutex.AssertCurrentThreadOwns();
MOZ_ASSERT(mDecoder);
bool justGotFirstFrame = false;
{
MutexAutoLock lock(mFramesMutex);
RawAccessFrameRef frame = mDecoder->GetCurrentFrameRef();
if (!frame) {
return;
}
if (!mFrames.IsEmpty() && mFrames.LastElement().get() == frame.get()) {
return; // We already have this one.
}
// Append the new frame to the list.
mFrames.AppendElement(Move(frame));
if (mFrames.Length() == 1) {
justGotFirstFrame = true;
}
}
if (justGotFirstFrame) {
AnnounceSurfaceAvailable();
}
}
void
AnimationSurfaceProvider::CheckForNewFrameAtYield()
{
mDecodingMutex.AssertCurrentThreadOwns();
MOZ_ASSERT(mDecoder);
bool justGotFirstFrame = false;
{
MutexAutoLock lock(mFramesMutex);
// Try to get the new frame from the decoder.
RawAccessFrameRef frame = mDecoder->GetCurrentFrameRef();
if (!frame) {
MOZ_ASSERT_UNREACHABLE("Decoder yielded but didn't produce a frame?");
return;
}
// We should've gotten a different frame than last time.
MOZ_ASSERT_IF(!mFrames.IsEmpty(),
mFrames.LastElement().get() != frame.get());
// Append the new frame to the list.
mFrames.AppendElement(Move(frame));
if (mFrames.Length() == 1) {
justGotFirstFrame = true;
}
}
if (justGotFirstFrame) {
AnnounceSurfaceAvailable();
}
}
