Move gpu client files to content_common, in content/common/gpu/client

content/renderer/gpu/command_buffer_proxy.h

-// Copyright (c) 2012 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_RENDERER_GPU_COMMAND_BUFFER_PROXY_H_
-#define CONTENT_RENDERER_GPU_COMMAND_BUFFER_PROXY_H_
-#pragma once
-
-#if defined(ENABLE_GPU)
-
-#include <map>
-#include <queue>
-
-#include "base/callback.h"
-#include "base/memory/linked_ptr.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "content/renderer/gpu/gpu_video_decode_accelerator_host.h"
-#include "gpu/command_buffer/common/command_buffer.h"
-#include "ipc/ipc_channel.h"
-#include "ipc/ipc_message.h"
-
-class GpuChannelHost;
-struct GPUCommandBufferConsoleMessage;
-
-namespace base {
-class SharedMemory;
-}
-
-// Client side proxy that forwards messages synchronously to a
-// CommandBufferStub.
-class CommandBufferProxy : public gpu::CommandBuffer,
-                           public IPC::Channel::Listener,
-                           public base::SupportsWeakPtr<CommandBufferProxy> {
- public:
-  CommandBufferProxy(GpuChannelHost* channel, int route_id);
-  virtual ~CommandBufferProxy();
-
-  // IPC::Channel::Listener implementation:
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-  virtual void OnChannelError() OVERRIDE;
-
-  int route_id() const { return route_id_; }
-
-  // CommandBuffer implementation:
-  virtual bool Initialize() OVERRIDE;
-  virtual State GetState() OVERRIDE;
-  virtual State GetLastState() OVERRIDE;
-  virtual void Flush(int32 put_offset) OVERRIDE;
-  virtual State FlushSync(int32 put_offset, int32 last_known_get) OVERRIDE;
-  virtual void SetGetBuffer(int32 shm_id) OVERRIDE;
-  virtual void SetGetOffset(int32 get_offset) OVERRIDE;
-  virtual int32 CreateTransferBuffer(size_t size, int32 id_request) OVERRIDE;
-  virtual int32 RegisterTransferBuffer(base::SharedMemory* shared_memory,
-                                       size_t size,
-                                       int32 id_request) OVERRIDE;
-  virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
-  virtual gpu::Buffer GetTransferBuffer(int32 handle) OVERRIDE;
-  virtual void SetToken(int32 token) OVERRIDE;
-  virtual void SetParseError(gpu::error::Error error) OVERRIDE;
-  virtual void SetContextLostReason(
-      gpu::error::ContextLostReason reason) OVERRIDE;
-
-  // Invoke the task when the channel has been flushed. Takes care of deleting
-  // the task whether the echo succeeds or not.
-  bool Echo(const base::Closure& callback);
-
-  // Sends an IPC message with the new state of surface visibility
-  bool SetSurfaceVisible(bool visible);
-
-  // Reparent a command buffer. TODO(apatrick): going forward, the notion of
-  // the parent / child relationship between command buffers is going away in
-  // favor of the notion of surfaces that can be drawn to in one command buffer
-  // and bound as a texture in any other.
-  virtual bool SetParent(CommandBufferProxy* parent_command_buffer,
-                         uint32 parent_texture_id);
-
-  void SetChannelErrorCallback(const base::Closure& callback);
-
-  // Set a task that will be invoked the next time the window becomes invalid
-  // and needs to be repainted. Takes ownership of task.
-  void SetNotifyRepaintTask(const base::Closure& callback);
-
-  // Sends an IPC message to create a GpuVideoDecodeAccelerator. Creates and
-  // returns a pointer to a GpuVideoDecodeAcceleratorHost.
-  // Returns NULL on failure to create the GpuVideoDecodeAcceleratorHost.
-  // Note that the GpuVideoDecodeAccelerator may still fail to be created in
-  // the GPU process, even if this returns non-NULL. In this case the client is
-  // notified of an error later.
-  scoped_refptr<GpuVideoDecodeAcceleratorHost> CreateVideoDecoder(
-      media::VideoDecodeAccelerator::Profile profile,
-      media::VideoDecodeAccelerator::Client* client);
-
-  // TODO(apatrick): this is a temporary optimization while skia is calling
-  // RendererGLContext::MakeCurrent prior to every GL call. It saves returning 6
-  // ints redundantly when only the error is needed for the CommandBufferProxy
-  // implementation.
-  virtual gpu::error::Error GetLastError() OVERRIDE;
-
- private:
-  // Send an IPC message over the GPU channel. This is private to fully
-  // encapsulate the channel; all callers of this function must explicitly
-  // verify that the context has not been lost.
-  bool Send(IPC::Message* msg);
-
-  // Message handlers:
-  void OnUpdateState(const gpu::CommandBuffer::State& state);
-  void OnNotifyRepaint();
-  void OnDestroyed(gpu::error::ContextLostReason reason);
-  void OnEchoAck();
-  void OnConsoleMessage(const GPUCommandBufferConsoleMessage& message);
-
-  // Local cache of id to transfer buffer mapping.
-  typedef std::map<int32, gpu::Buffer> TransferBufferMap;
-  TransferBufferMap transfer_buffers_;
-
-  // Zero or more video decoder hosts owned by this proxy, keyed by their
-  // decoder_route_id.
-  typedef std::map<int, scoped_refptr<GpuVideoDecodeAcceleratorHost> > Decoders;
-  Decoders video_decoder_hosts_;
-
-  // The last cached state received from the service.
-  State last_state_;
-
-  // |*this| is owned by |*channel_| and so is always outlived by it, so using a
-  // raw pointer is ok.
-  GpuChannelHost* channel_;
-  int route_id_;
-  unsigned int flush_count_;
-
-  // Tasks to be invoked in echo responses.
-  std::queue<base::Closure> echo_tasks_;
-
-  base::Closure notify_repaint_task_;
-
-  base::Closure channel_error_callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(CommandBufferProxy);
-};
-
-#endif  // ENABLE_GPU
-
-#endif  // CONTENT_RENDERER_GPU_COMMAND_BUFFER_PROXY_H_