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Bug 1061209 - disable basic layers OMTC except on linux and e10s. r=mattwoodrow

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This commit is contained in:
Nicolas Silva 2014-09-03 13:52:14 +02:00
parent 1cadd3c1dd
commit 215d41a87d
1 changed files with 19 additions and 0 deletions
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19
widget/xpwidgets/nsBaseWidget.cpp
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@ -872,6 +872,19 @@ nsBaseWidget::GetPreferredCompositorBackends(nsTArray<LayersBackend>& aHints)
aHints.AppendElement(LayersBackend::LAYERS_BASIC);
}
static void
RemoveBasicBackend(nsTArray<LayersBackend>& aHints)
{
#ifndef XP_WIN
for (size_t i = 0; i < aHints.Length(); ++i) {
if (aHints[i] == LayersBackend::LAYERS_BASIC &&
!Preferences::GetBool("layers.offmainthreadcomposition.force-basic", false)) {
aHints[i] = LayersBackend::LAYERS_NONE;
}
}
#endif
}
void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
{
MOZ_ASSERT(gfxPlatform::UsesOffMainThreadCompositing(),
@ -901,6 +914,12 @@ void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
nsTArray<LayersBackend> backendHints;
GetPreferredCompositorBackends(backendHints);
#ifndef MOZ_X11
if (!mRequireOffMainThreadCompositing) {
RemoveBasicBackend(backendHints);
}
#endif
bool success = false;
if (!backendHints.IsEmpty()) {
shadowManager = mCompositorChild->SendPLayerTransactionConstructor(