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Bug 865104 - Use double buffering for BasicCompositor. r=nrc

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This commit is contained in:
Matt Woodrow 2013-07-03 16:35:51 -04:00
parent 83b55a0869
commit 4f7f584b60
1 changed files with 8 additions and 6 deletions
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14
gfx/layers/client/ContentClient.cpp
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@ -24,28 +24,30 @@ namespace layers {
/* static */ TemporaryRef<ContentClient>
ContentClient::CreateContentClient(CompositableForwarder* aForwarder)
{
if (aForwarder->GetCompositorBackendType() != LAYERS_OPENGL &&
aForwarder->GetCompositorBackendType() != LAYERS_D3D11 &&
aForwarder->GetCompositorBackendType() != LAYERS_BASIC) {
LayersBackend backend = aForwarder->GetCompositorBackendType();
if (backend != LAYERS_OPENGL &&
backend != LAYERS_D3D11 &&
backend != LAYERS_BASIC) {
return nullptr;
}
bool useDoubleBuffering = false;
#ifdef XP_WIN
if (aForwarder->GetCompositorBackendType() == LAYERS_D3D11) {
if (backend == LAYERS_D3D11) {
useDoubleBuffering = !!gfxWindowsPlatform::GetPlatform()->GetD2DDevice();
} else
#endif
{
useDoubleBuffering = LayerManagerComposite::SupportsDirectTexturing();
useDoubleBuffering = LayerManagerComposite::SupportsDirectTexturing() ||
backend == LAYERS_BASIC;
}
if (useDoubleBuffering || PR_GetEnv("MOZ_FORCE_DOUBLE_BUFFERING")) {
return new ContentClientDoubleBuffered(aForwarder);
}
#ifdef XP_MACOSX
if (aForwarder->GetCompositorBackendType() == LAYERS_OPENGL) {
if (backend == LAYERS_OPENGL) {
return new ContentClientIncremental(aForwarder);
}
#endif