Calling OpenGL from the renderer process.

chrome/renderer/gpu_channel_host.h

 // 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_RENDERER_GPU_CHANNEL_HOST_H_
 #define CHROME_RENDERER_GPU_CHANNEL_HOST_H_
 
 #include <string>
 
 #include "base/hash_tables.h"
 #include "chrome/common/message_router.h"
+#include "gfx/native_widget_types.h"
+#include "gfx/size.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sync_channel.h"
 
 class CommandBufferProxy;
 
 // Encapsulates an IPC channel between the renderer and one plugin process.
 // On the plugin side there's a corresponding GpuChannel.
 class GpuChannelHost : public IPC::Channel::Listener,
                        public IPC::Message::Sender,
@@ skipping 23 matching lines @@
 
   // IPC::Channel::Listener implementation:
   virtual void OnMessageReceived(const IPC::Message& msg);
   virtual void OnChannelConnected(int32 peer_pid);
   virtual void OnChannelError();
 
   // IPC::Message::Sender implementation:
   virtual bool Send(IPC::Message* msg);
 
   // Create and connect to a command buffer in the GPU process.
-  CommandBufferProxy* CreateCommandBuffer();
+  CommandBufferProxy* CreateViewCommandBuffer(gfx::NativeViewId view);
+
+  // Create and connect to a command buffer in the GPU process.
+  CommandBufferProxy* CreateOffscreenCommandBuffer(CommandBufferProxy* parent,
+                                                   const gfx::Size& size,
+                                                   uint32 parent_texture_id);
+
 
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxy* command_buffer);
 
  private:
   State state_;
 
   scoped_ptr<IPC::SyncChannel> channel_;
 
   // Used to implement message routing functionality to CommandBufferProxy
   // objects
   MessageRouter router_;
 
   // Keep track of all the registered CommandBufferProxies to
   // inform about OnChannelError
   typedef base::hash_map<int, IPC::Channel::Listener*> ProxyMap;
   ProxyMap proxies_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
 };
 
 #endif  // CHROME_RENDERER_GPU_CHANNEL_HOST_H_