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// Copyright 2014 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_COMPOSITOR_GPU_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
#define CONTENT_BROWSER_COMPOSITOR_GPU_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
#include "base/cancelable_callback.h"
#include "content/browser/compositor/browser_compositor_output_surface.h"
#include "ui/gfx/swap_result.h"
namespace ui {
class CompositorVSyncManager;
}
namespace content {
class CommandBufferProxyImpl;
class BrowserCompositorOverlayCandidateValidator;
class ReflectorTexture;
// Adapts a WebGraphicsContext3DCommandBufferImpl into a
// cc::OutputSurface that also handles vsync parameter updates
// arriving from the GPU process.
class GpuBrowserCompositorOutputSurface
: public BrowserCompositorOutputSurface {
public:
GpuBrowserCompositorOutputSurface(
const scoped_refptr<ContextProviderCommandBuffer>& context,
const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
scoped_ptr<BrowserCompositorOverlayCandidateValidator>
overlay_candidate_validator);
~GpuBrowserCompositorOutputSurface() override;
protected:
// BrowserCompositorOutputSurface:
void OnReflectorChanged() override;
// cc::OutputSurface implementation.
void SwapBuffers(cc::CompositorFrame* frame) override;
bool BindToClient(cc::OutputSurfaceClient* client) override;
bool SurfaceIsSuspendForRecycle() const override;
#if defined(OS_MACOSX)
void OnSurfaceDisplayed() override;
void SetSurfaceSuspendedForRecycle(bool suspended) override;
bool SurfaceShouldNotShowFramesAfterSuspendForRecycle() const override;
enum ShouldShowFramesState {
// Frames that come from the GPU process should appear on-screen.
SHOULD_SHOW_FRAMES,
// The compositor has been suspended. Any frames that come from the GPU
// process are for the pre-suspend content and should not be displayed.
SHOULD_NOT_SHOW_FRAMES_SUSPENDED,
// The compositor has been un-suspended, but has not yet issued a swap
// since being un-suspended, so any frames that come from the GPU process
// are for pre-suspend content and should not be displayed.
SHOULD_NOT_SHOW_FRAMES_NO_SWAP_AFTER_SUSPENDED,
};
ShouldShowFramesState should_show_frames_state_;
#endif
CommandBufferProxyImpl* GetCommandBufferProxy();
virtual void OnSwapBuffersCompleted(
const std::vector<ui::LatencyInfo>& latency_info,
gfx::SwapResult result);
base::CancelableCallback<void(const std::vector<ui::LatencyInfo>&,
gfx::SwapResult)>
swap_buffers_completion_callback_;
base::CancelableCallback<void(base::TimeTicks timebase,
base::TimeDelta interval)>
update_vsync_parameters_callback_;
scoped_ptr<ReflectorTexture> reflector_texture_;
DISALLOW_COPY_AND_ASSIGN(GpuBrowserCompositorOutputSurface);
};
} // namespace content
#endif // CONTENT_BROWSER_COMPOSITOR_GPU_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
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