author Nathan Froyd <>
Tue, 12 Mar 2019 00:21:20 +0000
changeset 521812 c64bfaad8a2f0098be09b646fd4ce4b582f12056
parent 505383 6f3709b3878117466168c40affa7bca0b60cf75b
child 532835 aff4e1440f1a58fb3c8f497e2558c950236a2b82
permissions -rw-r--r--
Bug 1451104 - part 2 - force clang to always pick up its local GCC headers and libraries; r=glandium We want our clang bootstrap to use the GCC headers we're building with, not whatever sysroot it happens to find on the server we're building on. The -gcc-toolchain argument we specify when building clang will also be picked up by llvm-config, so we need to strip it out when building the plugin. Otherwise, we will get peculiar failures about not being able to find C++ header files. Depends on D22879 Differential Revision:

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */


#include <queue>

#include "GLTypes.h"
#include "mozilla/Maybe.h"
#include "mozilla/webrender/RenderCompositor.h"
#include "mozilla/webrender/RenderThread.h"

struct ID3D11DeviceContext;
struct ID3D11Device;
struct ID3D11Query;
struct IDCompositionDevice;
struct IDCompositionTarget;
struct IDCompositionVisual;
struct IDXGIFactory2;
struct IDXGISwapChain;

namespace mozilla {

namespace wr {

class RenderCompositorANGLE : public RenderCompositor {
  static UniquePtr<RenderCompositor> Create(
      RefPtr<widget::CompositorWidget>&& aWidget);

  explicit RenderCompositorANGLE(RefPtr<widget::CompositorWidget>&& aWidget);
  virtual ~RenderCompositorANGLE();
  bool Initialize();

  bool BeginFrame() override;
  void EndFrame() override;
  void WaitForGPU() override;
  void Pause() override;
  bool Resume() override;

  gl::GLContext* gl() const override { return RenderThread::Get()->SharedGL(); }

  bool MakeCurrent() override;

  bool UseANGLE() const override { return true; }

  bool UseDComp() const override { return !!mCompositionDevice; }

  bool UseTripleBuffering() const { return mUseTripleBuffering; }

  LayoutDeviceIntSize GetBufferSize() override;

  void InsertPresentWaitQuery();
  void WaitForPreviousPresentQuery();
  bool ResizeBufferIfNeeded();
  void DestroyEGLSurface();
  ID3D11Device* GetDeviceOfEGLDisplay();
  void CreateSwapChainForDCompIfPossible(IDXGIFactory2* aDXGIFactory2);
  bool SutdownEGLLibraryIfNecessary();
  RefPtr<ID3D11Query> GetD3D11Query();

  EGLConfig mEGLConfig;
  EGLSurface mEGLSurface;

  int mUseTripleBuffering;

  RefPtr<ID3D11Device> mDevice;
  RefPtr<ID3D11DeviceContext> mCtx;
  RefPtr<IDXGISwapChain> mSwapChain;

  RefPtr<IDCompositionDevice> mCompositionDevice;
  RefPtr<IDCompositionTarget> mCompositionTarget;
  RefPtr<IDCompositionVisual> mVisual;

  std::queue<RefPtr<ID3D11Query>> mWaitForPresentQueries;
  RefPtr<ID3D11Query> mRecycledQuery;

  Maybe<LayoutDeviceIntSize> mBufferSize;

}  // namespace wr
}  // namespace mozilla