gfxContext::PushGroupAndCopyBackground & PushGroupForBlendBack do not change the
content of AzureState, we should remove gfxContext::Save in these two functions.
MozReview-Commit-ID: LUuC7bkqFba
--HG--
extra : rebase_source : bed69fa8544e389f4ac13a63489a215a6c86d632
Since gfxContext::Save keep appear on my screen when I did profile, so I think
we should find a way to prevent unecessary usage of this function.
By this patch, an assertion message will be dump if we save and restore an
unchanged AzureState.
MozReview-Commit-ID: 5lH1Y5T5K7t
--HG--
extra : rebase_source : 3fe0bb72ad78273687008cdf87692090cf3fe931
With DXVA2 hardware-video-decoding, the RendererOGL should have a
synchronization mechanism to prevent the flickering of video texture.
Create a SyncObject in RendererOGL to do the texture synchronization.
The WebRenderAPI also exposes the RendererOGL's SyncHandle to
WebRenderBridgeParent. Then, the WebRenderBridgeParent could pass this SyncHandle
to the video decoding module for texture synchronization.
MozReview-Commit-ID: toQ2mO5fzG
From bug 1163440, there is an additional AcquireSync() call around the swapChain::Present(). Export the KeyedMutex from SyncObjectD3D11Host for this synchronization.
MozReview-Commit-ID: 8mPs4jKj67W
The MLGDeviceD3D11, CompositorD3D11 and TextureClient use the same synchronization mechanism.
Create the new SyncObjectClient/Host types for reusing code.
Add SyncObject.cpp/h and create two new data types: SyncObjectClient and SyncObjectHost.
The SyncObjectClient is used for the TextureClient synchronization at client side.
The SyncObjectHost is used for the TextureHost synchronization in renderers such
as MLGDeviceD3D11 and CompositorD3D11.
MozReview-Commit-ID: 3l56WK1aZ15
Create the corresponding RenderTextureHost type and WR commands for DXGI texture type.
The DXGITextureHostD3D11 will use 1 or 2 image keys for non-nv12 and nv12 texture format.
The DXGIYCbCrTextureHostD3D11 is a special case. The WR uses ANGLE in windows platform,
but the ANGLE doesn't support A8 format directx texture directly. So, we use libyuv to
convert the DXGIYCbCrTextureHostD3D11 texture buffer into RGBA format buffer and use
WR::AddImage() for that image. This is a slow code path. We will refine this case later.
The whole RenderD3D11TextureHostOGL implementation is in the next patch.
MozReview-Commit-ID: F4mPCALj1OY
All WR texture related codes are move into GetWRImageKeys(), AddWRImage() and PushExternalImage().
Each texture type could generate its WR commands individually. So, this "mIsWrappingNativeHandle" flag is not used anymore.
MozReview-Commit-ID: 1TITkGRemAr
When WebRender creation is failed, WebRender is disabled in gecko. There is a case that WebRenderBridgeParents exist when WebRender is disabled. To handle this, gecko needs to rebuild all CompositorSessions.
There is also a problem related to gfxVars::UseWebRender on compositor thread. If e10s is enabled, but no-gpu process(default on linux and mac), gfxVars::UseWebRender change is soon notified by compositor thread tasks. If WebRender creation failure happens at 2nd WebRender creation, several WebRenderBridgeParents for 1st WebRender could exist. IPC messages from WebRenderLayerManager are normally async, then there is a chance that the WebRenderBridgeParents receive the messages after the gfxVars::UseWebRender change. Further the gfxVars::UseWebRender change in content process could be delayed than WebRenderBridgeParents, then content process does not have a way to stop sending PWebRenderBridge IPC until the change of gfxVars::UseWebRender is received. WebRenderBridgeParent related tasks handle the message, but some tasks are done based on gfxVars::UseWebRender. At this time, gfxVars::UseWebRender returned false on compositor thread, then it cause unexpected result for WebRenderBridgeParent and WebRender. To addres this inconsistent situation, WebRenderBridgeParent related tasks on compositor thread stop to use gfxVars::UseWebRender.
