SharedSurface*
SurfaceStream_TripleBuffer::SwapProducer(SurfaceFactory* factory,
const gfxIntSize& size)
{
PROFILER_LABEL("SurfaceStream_TripleBuffer", "SwapProducer");
MonitorAutoLock lock(mMonitor);
if (mProducer) {
RecycleScraps(factory);
// If WaitForCompositor succeeds, mStaging has moved to mConsumer.
// If it failed, we might have to scrap it.
if (mStaging && !WaitForCompositor())
Scrap(mStaging);
MOZ_ASSERT(!mStaging);
Move(mProducer, mStaging);
mStaging->Fence();
}
MOZ_ASSERT(!mProducer);
New(factory, size, mProducer);
return mProducer;
}
SharedSurface*
SurfaceStream_TripleBuffer::SwapConsumer_NoWait()
{
MutexAutoLock lock(mMutex);
if (mStaging) {
Scrap(mConsumer);
Move(mStaging, mConsumer);
}
return mConsumer;
}
SharedSurface*
SurfaceStream_TripleBuffer::SwapConsumer_NoWait()
{
MonitorAutoLock lock(mMonitor);
if (mStaging) {
Scrap(mConsumer);
Move(mStaging, mConsumer);
mMonitor.NotifyAll();
}
return mConsumer;
}
SharedSurface*
SurfaceStream::Resize(SurfaceFactory* factory, const gfxIntSize& size)
{
MonitorAutoLock lock(mMonitor);
if (mProducer) {
Scrap(mProducer);
}
New(factory, size, mProducer);
return mProducer;
}
SharedSurface*
SurfaceStream_TripleBuffer::SwapProducer(SurfaceFactory* factory,
const gfx::IntSize& size)
{
PROFILER_LABEL("SurfaceStream_TripleBuffer", "SwapProducer");
MonitorAutoLock lock(mMonitor);
if (mProducer) {
RecycleScraps(factory);
if (mStaging)
Scrap(mStaging);
MOZ_ASSERT(!mStaging);
Move(mProducer, mStaging);
mStaging->Fence();
}
MOZ_ASSERT(!mProducer);
New(factory, size, mProducer);
return mProducer;
}