| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_ |
| #define COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_ |
| |
| #include <list> |
| #include <map> |
| #include <memory> |
| |
| #include "cc/ipc/mojo_compositor_frame_sink.mojom.h" |
| #include "cc/resources/release_callback.h" |
| #include "cc/resources/transferable_resource.h" |
| #include "cc/scheduler/begin_frame_source.h" |
| #include "components/exo/compositor_frame_sink.h" |
| #include "components/exo/surface_observer.h" |
| #include "mojo/public/cpp/bindings/binding.h" |
| |
| namespace exo { |
| class Surface; |
| |
| // This class talks to MojoCompositorFrameSink and keeps track of references to |
| // the contents of Buffers. It's keeped alive by references from |
| // release_callbacks_. It's destroyed when its owning Surface is destroyed and |
| // the last outstanding release callback is called. |
| class CompositorFrameSinkHolder |
| : public base::RefCounted<CompositorFrameSinkHolder>, |
| public cc::ExternalBeginFrameSourceClient, |
| public cc::mojom::MojoCompositorFrameSinkClient, |
| public SurfaceObserver { |
| public: |
| CompositorFrameSinkHolder(Surface* surface, |
| const cc::FrameSinkId& frame_sink_id, |
| cc::SurfaceManager* surface_manager); |
| |
| bool HasReleaseCallbackForResource(cc::ResourceId id); |
| void SetResourceReleaseCallback(cc::ResourceId id, |
| const cc::ReleaseCallback& callback); |
| |
| CompositorFrameSink* GetCompositorFrameSink() { return frame_sink_.get(); } |
| |
| base::WeakPtr<CompositorFrameSinkHolder> GetWeakPtr() { |
| return weak_factory_.GetWeakPtr(); |
| } |
| |
| // Overridden from cc::mojom::MojoCompositorFrameSinkClient: |
| void DidReceiveCompositorFrameAck( |
| const cc::ReturnedResourceArray& resources) override; |
| void OnBeginFrame(const cc::BeginFrameArgs& args) override; |
| void ReclaimResources(const cc::ReturnedResourceArray& resources) override; |
| |
| // Overridden from cc::ExternalBeginFrameSourceClient: |
| void OnNeedsBeginFrames(bool needs_begin_frames) override; |
| void OnDidFinishFrame(const cc::BeginFrameAck& ack) override; |
| |
| // Overridden from SurfaceObserver: |
| void OnSurfaceDestroying(Surface* surface) override; |
| |
| private: |
| friend class base::RefCounted<CompositorFrameSinkHolder>; |
| |
| ~CompositorFrameSinkHolder() override; |
| |
| // A collection of callbacks used to release resources. |
| using ResourceReleaseCallbackMap = std::map<int, cc::ReleaseCallback>; |
| ResourceReleaseCallbackMap release_callbacks_; |
| |
| Surface* surface_; |
| std::unique_ptr<CompositorFrameSink> frame_sink_; |
| std::unique_ptr<cc::ExternalBeginFrameSource> begin_frame_source_; |
| |
| base::WeakPtrFactory<CompositorFrameSinkHolder> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CompositorFrameSinkHolder); |
| }; |
| |
| } // namespace exo |
| |
| #endif // COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_ |