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// Copyright (c) 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_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_
#define CONTENT_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_
#include "base/basictypes.h"
#include "content/common/gpu/image_transport_surface.h"
#include "ui/gfx/native_widget_types.h"
namespace content {
// Used when the GPU process is not involved in frame transport, but frame
// resources are exchanged between client and target directly (such as in
// delegated rendering).
class NullTransportSurface : public PassThroughImageTransportSurface {
public:
NullTransportSurface(GpuChannelManager* manager,
GpuCommandBufferStub* stub,
const gfx::GLSurfaceHandle& handle);
// gfx::GLSurfaceAdapter implementation.
bool Initialize() override;
void Destroy() override;
gfx::SwapResult SwapBuffers() override;
gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
bool OnMakeCurrent(gfx::GLContext* context) override;
protected:
~NullTransportSurface() override;
void SendVSyncUpdateIfAvailable() override;
private:
uint32 parent_client_id_;
DISALLOW_COPY_AND_ASSIGN(NullTransportSurface);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_NULL_TRANSPORT_SURFACE_H_
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