author sotaro <>
Sat, 23 Feb 2019 08:59:53 +0900
changeset 518604 0e0b4b2f297307d8c3178acca10dc3b4a2c55359
parent 517917 30fed4806650b531e9225f9654c591f5c2f05d66
child 527951 884f5dc55873c9345ee945cd6d5427e8ab398071
permissions -rw-r--r--
Bug 1529027 - Make WebRenderImageHost to hold WeakPtr<WebRenderBridgeParent> r=nical Log is added to check if WrBridge mismatch happened. 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 "CompositableHost.h"               // for CompositableHost
#include "mozilla/layers/ImageComposite.h"  // for ImageComposite
#include "mozilla/WeakPtr.h"

namespace mozilla {
namespace layers {

class WebRenderBridgeParent;

 * ImageHost. Works with ImageClientSingle and ImageClientBuffered
class WebRenderImageHost : public CompositableHost, public ImageComposite {
  explicit WebRenderImageHost(const TextureInfo& aTextureInfo);

  virtual CompositableType GetType() override {
    return mTextureInfo.mCompositableType;

  virtual void Composite(
      Compositor* aCompositor, LayerComposite* aLayer,
      EffectChain& aEffectChain, float aOpacity,
      const gfx::Matrix4x4& aTransform,
      const gfx::SamplingFilter aSamplingFilter, const gfx::IntRect& aClipRect,
      const nsIntRegion* aVisibleRegion = nullptr,
      const Maybe<gfx::Polygon>& aGeometry = Nothing()) override;

  virtual void UseTextureHost(const nsTArray<TimedTexture>& aTextures) override;
  virtual void UseComponentAlphaTextures(TextureHost* aTextureOnBlack,
                                         TextureHost* aTextureOnWhite) override;
  virtual void RemoveTextureHost(TextureHost* aTexture) override;

  virtual TextureHost* GetAsTextureHost(
      gfx::IntRect* aPictureRect = nullptr) override;

  virtual void Attach(Layer* aLayer, TextureSourceProvider* aProvider,
                      AttachFlags aFlags = NO_FLAGS) override;

  virtual void SetTextureSourceProvider(
      TextureSourceProvider* aProvider) override;

  gfx::IntSize GetImageSize() override;

  virtual void PrintInfo(std::stringstream& aStream,
                         const char* aPrefix) override;

  virtual void Dump(std::stringstream& aStream, const char* aPrefix = "",
                    bool aDumpHtml = false) override;

  virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;

  virtual bool Lock() override;

  virtual void Unlock() override;

  virtual void CleanupResources() override;

  uint32_t GetDroppedFrames() override { return GetDroppedFramesAndReset(); }

  virtual WebRenderImageHost* AsWebRenderImageHost() override { return this; }

  TextureHost* GetAsTextureHostForComposite();

  void SetWrBridge(WebRenderBridgeParent* aWrBridge);

  void ClearWrBridge(WebRenderBridgeParent* aWrBridge);

  TextureHost* GetCurrentTextureHost() { return mCurrentTextureHost; }

  // ImageComposite
  virtual TimeStamp GetCompositionTime() const override;

  void SetCurrentTextureHost(TextureHost* aTexture);

  WeakPtr<WebRenderBridgeParent> mWrBridge;

  uint32_t mWrBridgeBindings;

  CompositableTextureHostRef mCurrentTextureHost;

}  // namespace layers
}  // namespace mozilla