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// Copyright (c) 2010 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 CHROME_GPU_GPU_COMMAND_BUFFER_STUB_H_
#define CHROME_GPU_GPU_COMMAND_BUFFER_STUB_H_
#pragma once
#if defined(ENABLE_GPU)
#include "base/process.h"
#include "base/weak_ptr.h"
#include "gfx/native_widget_types.h"
#include "gfx/size.h"
#include "gpu/command_buffer/service/command_buffer_service.h"
#include "gpu/command_buffer/service/gpu_processor.h"
#include "ipc/ipc_channel.h"
#include "ipc/ipc_message.h"
class GpuChannel;
class GpuCommandBufferStub
: public IPC::Channel::Listener,
public IPC::Message::Sender,
public base::SupportsWeakPtr<GpuCommandBufferStub> {
public:
GpuCommandBufferStub(GpuChannel* channel,
gfx::PluginWindowHandle handle,
GpuCommandBufferStub* parent,
const gfx::Size& size,
uint32 parent_texture_id,
int32 route_id);
virtual ~GpuCommandBufferStub();
// IPC::Channel::Listener implementation:
virtual void OnMessageReceived(const IPC::Message& message);
// IPC::Message::Sender implementation:
virtual bool Send(IPC::Message* msg);
int32 route_id() const { return route_id_; }
private:
// Message handlers:
void OnInitialize(int32 size, base::SharedMemoryHandle* ring_buffer);
void OnGetState(gpu::CommandBuffer::State* state);
void OnAsyncGetState();
void OnFlush(int32 put_offset, gpu::CommandBuffer::State* state);
void OnAsyncFlush(int32 put_offset);
void OnCreateTransferBuffer(int32 size, int32* id);
void OnDestroyTransferBuffer(int32 id);
void OnGetTransferBuffer(int32 id,
base::SharedMemoryHandle* transfer_buffer,
uint32* size);
void OnResizeOffscreenFrameBuffer(const gfx::Size& size);
// The lifetime of objects of this class is managed by a GpuChannel. The
// GpuChannels destroy all the GpuCommandBufferStubs that they own when they
// are destroyed. So a raw pointer is safe.
GpuChannel* channel_;
gfx::PluginWindowHandle handle_;
base::WeakPtr<GpuCommandBufferStub> parent_;
gfx::Size initial_size_;
uint32 parent_texture_id_;
int32 route_id_;
scoped_ptr<gpu::CommandBufferService> command_buffer_;
scoped_ptr<gpu::GPUProcessor> processor_;
DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
};
#endif // ENABLE_GPU
#endif // CHROME_GPU_GPU_COMMAND_BUFFER_STUB_H_
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