NativeLayerRootRemoteMacChild.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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_layers_NativeLayerRootRemoteMacChild_h

#define mozilla_layers_NativeLayerRootRemoteMacChild_h

#include "mozilla/layers/NativeLayer.h"

#include "mozilla/layers/NativeLayerCommandQueue.h"

#include "mozilla/layers/NativeLayerRemoteChild.h"

namespace mozilla {

namespace layers {

// NativeLayerRootRemoteMacChild is a macOS-specific implementation of

// NativeLayerRoot that runs on the GPU process, and sends updates

// to the parent process.

class NativeLayerRootRemoteMacChild final : public NativeLayerRoot {

 public:

  NativeLayerRootRemoteMacChild();

  already_AddRefed<NativeLayer> CreateLayer(

      const gfx::IntSize& aSize, bool aIsOpaque,

      SurfacePoolHandle* aSurfacePoolHandle) override;

  already_AddRefed<NativeLayer> CreateLayerForExternalTexture(

      bool aIsOpaque) override;

  already_AddRefed<NativeLayer> CreateLayerForColor(

      gfx::DeviceColor aColor) override;

  void AppendLayer(NativeLayer* aLayer) override;

  void RemoveLayer(NativeLayer* aLayer) override;

  void SetLayers(const nsTArray<RefPtr<NativeLayer>>& aLayers) override;

  // Called before any layer content changes.

  void PrepareForCommit() override;

  // Publish the layer changes to the screen. Returns whether the commit was

  // successful.

  bool CommitToScreen() override;

  RefPtr<NativeLayerRemoteChild> GetRemoteChild() { return mRemoteChild; }

 protected:

  virtual ~NativeLayerRootRemoteMacChild();

  RefPtr<NativeLayerRemoteChild> mRemoteChild;

  RefPtr<NativeLayerCommandQueue> mCommandQueue;

  nsTArray<RefPtr<NativeLayer>> mNativeLayers;

  bool mNativeLayersChanged = false;

};

}  // namespace layers

}  // namespace mozilla

#endif  // mozilla_layers_NativeLayerRootRemoteMacChild_h