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_Copy::SwapProducer(SurfaceFactory* factory,
const gfxIntSize& size)
{
MonitorAutoLock lock(mMonitor);
RecycleScraps(factory);
if (mProducer) {
if (mStaging && mStaging->Type() != factory->Type())
Recycle(factory, mStaging);
if (!mStaging)
New(factory, mProducer->Size(), mStaging);
if (!mStaging)
return nullptr;
SharedSurface::Copy(mProducer, mStaging, factory);
// Fence now, before we start (maybe) juggling Prod around.
mStaging->Fence();
if (mProducer->Size() != size)
Recycle(factory, mProducer);
}
// The old Prod (if there every was one) was invalid,
// so we need a new one.
if (!mProducer) {
New(factory, size, mProducer);
}
return mProducer;
}
SharedSurface*
SurfaceStream_TripleBuffer_Copy::SwapProducer(SurfaceFactory* factory,
const gfxIntSize& size)
{
MonitorAutoLock lock(mMonitor);
RecycleScraps(factory);
if (mProducer) {
if (mStaging) {
// We'll re-use this for a new mProducer later on if
// the size remains the same
Recycle(factory, mStaging);
}
Move(mProducer, mStaging);
mStaging->Fence();
New(factory, size, mProducer);
if (mProducer && mStaging->Size() == mProducer->Size())
SharedSurface::Copy(mStaging, mProducer, factory);
} else {
New(factory, size, mProducer);
}
return mProducer;
}
SharedSurface*
SurfaceStream_TripleBuffer::SwapProducer(SurfaceFactory* factory,
const gfxIntSize& size)
{
MutexAutoLock lock(mMutex);
if (mProducer) {
RecycleScraps(factory);
if (mStaging)
Recycle(factory, mStaging);
Move(mProducer, mStaging);
mStaging->Fence();
}
MOZ_ASSERT(!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;
}
