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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_ONSCREEN_DISPLAY_CLIENT_H_
#define CONTENT_BROWSER_COMPOSITOR_ONSCREEN_DISPLAY_CLIENT_H_
#include "cc/surfaces/display_client.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/single_thread_task_runner.h"
#include "cc/surfaces/display.h"
namespace cc {
class ContextProvider;
class SurfaceManager;
}
namespace content {
class SurfaceDisplayOutputSurface;
// This class provides a DisplayClient implementation for drawing directly to an
// onscreen context.
class OnscreenDisplayClient : cc::DisplayClient {
public:
OnscreenDisplayClient(
scoped_ptr<cc::OutputSurface> output_surface,
cc::SurfaceManager* manager,
const cc::RendererSettings& settings,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
~OnscreenDisplayClient() override;
bool Initialize();
cc::Display* display() { return display_.get(); }
void set_surface_output_surface(SurfaceDisplayOutputSurface* surface) {
surface_display_output_surface_ = surface;
}
// cc::DisplayClient implementation.
void DisplayDamaged() override;
void DidSwapBuffers() override;
void DidSwapBuffersComplete() override;
void CommitVSyncParameters(base::TimeTicks timebase,
base::TimeDelta interval) override;
void OutputSurfaceLost() override;
void SetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override;
private:
void ScheduleDraw();
void Draw();
scoped_ptr<cc::OutputSurface> output_surface_;
scoped_ptr<cc::Display> display_;
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
SurfaceDisplayOutputSurface* surface_display_output_surface_;
bool scheduled_draw_;
bool output_surface_lost_;
// True if a draw should be scheduled, but it's hit the limit on max frames
// pending.
bool deferred_draw_;
int pending_frames_;
base::WeakPtrFactory<OnscreenDisplayClient> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(OnscreenDisplayClient);
};
} // namespace content
#endif // CONTENT_BROWSER_COMPOSITOR_ONSCREEN_DISPLAY_CLIENT_H_
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