| // Copyright 2013 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 CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_ |
| #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_ |
| |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/callback.h" |
| #include "base/compiler_specific.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "cc/output/compositor_frame.h" |
| #include "cc/output/managed_memory_policy.h" |
| #include "cc/output/output_surface.h" |
| #include "content/public/browser/android/synchronous_compositor.h" |
| #include "ipc/ipc_message.h" |
| #include "ui/gfx/transform.h" |
| |
| namespace cc { |
| class ContextProvider; |
| class CompositorFrameMetadata; |
| } |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| namespace content { |
| |
| class FrameSwapMessageQueue; |
| class SynchronousCompositorClient; |
| class SynchronousCompositorExternalBeginFrameSource; |
| class SynchronousCompositorOutputSurface; |
| class WebGraphicsContext3DCommandBufferImpl; |
| |
| // Specialization of the output surface that adapts it to implement the |
| // content::SynchronousCompositor public API. This class effects an "inversion |
| // of control" - enabling drawing to be orchestrated by the embedding |
| // layer, instead of driven by the compositor internals - hence it holds two |
| // 'client' pointers (|client_| in the OutputSurface baseclass and |
| // |delegate_|) which represent the consumers of the two roles in plays. |
| // This class can be created only on the main thread, but then becomes pinned |
| // to a fixed thread when BindToClient is called. |
| class SynchronousCompositorOutputSurface |
| : NON_EXPORTED_BASE(public cc::OutputSurface) { |
| public: |
| explicit SynchronousCompositorOutputSurface( |
| int routing_id, |
| scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue); |
| ~SynchronousCompositorOutputSurface() override; |
| |
| // OutputSurface. |
| bool BindToClient(cc::OutputSurfaceClient* surface_client) override; |
| void Reshape(const gfx::Size& size, float scale_factor) override; |
| void SwapBuffers(cc::CompositorFrame* frame) override; |
| |
| void SetBeginFrameSource( |
| SynchronousCompositorExternalBeginFrameSource* begin_frame_source); |
| |
| // Partial SynchronousCompositor API implementation. |
| bool InitializeHwDraw( |
| scoped_refptr<cc::ContextProvider> onscreen_context_provider); |
| void ReleaseHwDraw(); |
| scoped_ptr<cc::CompositorFrame> DemandDrawHw( |
| gfx::Size surface_size, |
| const gfx::Transform& transform, |
| gfx::Rect viewport, |
| gfx::Rect clip, |
| gfx::Rect viewport_rect_for_tile_priority, |
| const gfx::Transform& transform_for_tile_priority); |
| void ReturnResources(const cc::CompositorFrameAck& frame_ack); |
| scoped_ptr<cc::CompositorFrame> DemandDrawSw(SkCanvas* canvas); |
| void SetMemoryPolicy(size_t bytes_limit); |
| void SetTreeActivationCallback(const base::Closure& callback); |
| void GetMessagesToDeliver(ScopedVector<IPC::Message>* messages); |
| |
| private: |
| class SoftwareDevice; |
| friend class SoftwareDevice; |
| |
| void InvokeComposite(const gfx::Transform& transform, |
| gfx::Rect viewport, |
| gfx::Rect clip, |
| gfx::Rect viewport_rect_for_tile_priority, |
| gfx::Transform transform_for_tile_priority, |
| bool hardware_draw); |
| bool CalledOnValidThread() const; |
| |
| const int routing_id_; |
| bool registered_; |
| |
| gfx::Transform cached_hw_transform_; |
| gfx::Rect cached_hw_viewport_; |
| gfx::Rect cached_hw_clip_; |
| gfx::Rect cached_hw_viewport_rect_for_tile_priority_; |
| gfx::Transform cached_hw_transform_for_tile_priority_; |
| |
| // Only valid (non-NULL) during a DemandDrawSw() call. |
| SkCanvas* current_sw_canvas_; |
| |
| cc::ManagedMemoryPolicy memory_policy_; |
| |
| cc::OutputSurfaceClient* output_surface_client_; |
| scoped_ptr<cc::CompositorFrame> frame_holder_; |
| |
| scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue_; |
| |
| SynchronousCompositorExternalBeginFrameSource* begin_frame_source_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorOutputSurface); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_ |