WebRenderImageHost.h

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/* -*- 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 http://mozilla.org/MPL/2.0/. */

#ifndef MOZILLA_GFX_WEBRENDERIMAGEHOST_H

#define MOZILLA_GFX_WEBRENDERIMAGEHOST_H

#include <deque>

#include <unordered_map>

#include "CompositableHost.h"               // for CompositableHost

#include "mozilla/layers/ImageComposite.h"  // for ImageComposite

#include "mozilla/WeakPtr.h"

namespace mozilla {

namespace layers {

class AsyncImagePipelineManager;

class TextureWrapperD3D11Allocator;

class WebRenderBridgeParent;

class WebRenderBridgeParentRef;

/**

 * ImageHost. Works with ImageClientSingle and ImageClientBuffered

*/

class WebRenderImageHost : public CompositableHost, public ImageComposite {

 public:

  explicit WebRenderImageHost(const TextureInfo& aTextureInfo);

  virtual ~WebRenderImageHost();

  void UseTextureHost(const nsTArray<TimedTexture>& aTextures) override;

  void RemoveTextureHost(TextureHost* aTexture) override;

  void Dump(std::stringstream& aStream, const char* aPrefix = "",

            bool aDumpHtml = false) override;

  void CleanupResources() override;

  void OnReleased() override;

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

  WebRenderImageHost* AsWebRenderImageHost() override { return this; }

  void PushPendingRemoteTexture(const RemoteTextureId aTextureId,

                                const RemoteTextureOwnerId aOwnerId,

                                const base::ProcessId aForPid,

                                const gfx::IntSize aSize,

                                const TextureFlags aFlags);

  void UseRemoteTexture();

  TextureHost* GetAsTextureHostForComposite(

      AsyncImagePipelineManager* aAsyncImageManager);

  void SetWrBridge(const wr::PipelineId& aPipelineId,

                   WebRenderBridgeParent* aWrBridge);

  void ClearWrBridge(const wr::PipelineId& aPipelineId,

                     WebRenderBridgeParent* aWrBridge);

  TextureHost* GetCurrentTextureHost() { return mCurrentTextureHost; }

 protected:

  // ImageComposite

  TimeStamp GetCompositionTime() const override;

  CompositionOpportunityId GetCompositionOpportunityId() const override;

  void AppendImageCompositeNotification(

      const ImageCompositeNotificationInfo& aInfo) const override;

  void SetCurrentTextureHost(TextureHost* aTexture);

  std::unordered_map<uint64_t, RefPtr<WebRenderBridgeParentRef>> mWrBridges;

  AsyncImagePipelineManager* mCurrentAsyncImageManager;

  CompositableTextureHostRef mCurrentTextureHost;

  std::deque<CompositableTextureHostRef> mPendingRemoteTextureWrappers;

  bool mWaitingReadyCallback = false;

  bool mWaitForRemoteTextureOwner = true;

#if XP_WIN

  RefPtr<TextureWrapperD3D11Allocator> mTextureAllocator;

#endif

};

}  // namespace layers

}  // namespace mozilla

#endif  // MOZILLA_GFX_WEBRENDERIMAGEHOST_H