| // 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 SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_ |
| #define SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_ |
| |
| #include "cc/surfaces/display_client.h" |
| #include "cc/surfaces/surface.h" |
| #include "cc/surfaces/surface_factory.h" |
| #include "cc/surfaces/surface_factory_client.h" |
| #include "cc/surfaces/surface_id_allocator.h" |
| #include "services/ui/surfaces/surfaces_state.h" |
| #include "ui/gfx/native_widget_types.h" |
| |
| namespace cc { |
| class Display; |
| } |
| |
| namespace gpu { |
| class GpuChannelHost; |
| } |
| |
| namespace ui { |
| |
| // TODO(fsamuel): This should become a mojo interface for the mus-gpu split. |
| // TODO(fsamuel): This should not be a SurfaceFactoryClient. |
| // The DisplayCompositor receives CompositorFrames from all sources, |
| // creates a top-level CompositorFrame once per tick, and generates graphical |
| // output. |
| class DisplayCompositor : public cc::SurfaceFactoryClient, |
| public cc::DisplayClient { |
| public: |
| DisplayCompositor(scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
| gfx::AcceleratedWidget widget, |
| scoped_refptr<gpu::GpuChannelHost> gpu_channel, |
| const scoped_refptr<SurfacesState>& surfaces_state); |
| ~DisplayCompositor() override; |
| |
| // DisplayCompositor embedders submit a CompositorFrame when content on the |
| // display should be changed. A well-behaving embedder should only submit |
| // a CompositorFrame once per BeginFrame tick. The callback is called the |
| // first time this frame is used to draw, or if the frame is discarded. |
| void SubmitCompositorFrame(cc::CompositorFrame frame, |
| const base::Callback<void()>& callback); |
| |
| // TODO(fsamuel): This is used for surface hittesting and should not be |
| // exposed outside of DisplayCompositor. |
| const cc::SurfaceId& surface_id() const { return surface_id_; } |
| |
| // This requests the display CompositorFrame be rendered and given to the |
| // callback within CopyOutputRequest. |
| void RequestCopyOfOutput( |
| std::unique_ptr<cc::CopyOutputRequest> output_request); |
| |
| // TODO(fsamuel): Invent an async way to create a SurfaceNamespace |
| // A SurfaceNamespace can create CompositorFrameSinks where the client can |
| // make up the ID. |
| |
| private: |
| // SurfaceFactoryClient implementation. |
| void ReturnResources(const cc::ReturnedResourceArray& resources) override; |
| void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override; |
| |
| // DisplayClient implementation. |
| void DisplayOutputSurfaceLost() override; |
| void DisplaySetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override; |
| void DisplayWillDrawAndSwap(bool will_draw_and_swap, |
| const cc::RenderPassList& render_passes) override; |
| void DisplayDidDrawAndSwap() override; |
| |
| scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
| scoped_refptr<SurfacesState> surfaces_state_; |
| cc::SurfaceFactory factory_; |
| cc::SurfaceIdAllocator allocator_; |
| cc::SurfaceId surface_id_; |
| |
| gfx::Size display_size_; |
| std::unique_ptr<cc::Display> display_; |
| DISALLOW_COPY_AND_ASSIGN(DisplayCompositor); |
| }; |
| |
| } // namespace ui |
| |
| #endif // SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_ |