Calling OpenGL from the renderer process.

chrome/renderer/render_thread.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_RENDER_THREAD_H_
 #define CHROME_RENDERER_RENDER_THREAD_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/shared_memory.h"
 #include "base/string16.h"
 #include "base/task.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "build/build_config.h"
 #include "chrome/common/child_thread.h"
 #include "chrome/common/css_colors.h"
 #include "chrome/common/dom_storage_common.h"
+#include "chrome/renderer/gpu_channel_host.h"
 #include "chrome/renderer/renderer_histogram_snapshots.h"
 #include "chrome/renderer/visitedlink_slave.h"
 #include "gfx/native_widget_types.h"
+#include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_platform_file.h"
 
 class AppCacheDispatcher;
 class CookieMessageFilter;
 class DBMessageFilter;
 class DevToolsAgentFilter;
 class FilePath;
 class ListValue;
 class NullableString16;
 class RenderDnsMaster;
@@ skipping 124 matching lines @@
 
   // Sends a message to the browser to close all connections.
   void CloseCurrentConnections();
 
   // Sends a message to the browser to enable or disable the disk cache.
   void SetCacheMode(bool enabled);
 
   // Update the list of active extensions that will be reported when we crash.
   void UpdateActiveExtensions();
 
+  // Asynchronously establish a channel to the GPU plugin if not previously
+  // established or if it has been lost (for example if the GPU plugin crashed).
+  // Use GetGpuChannel() to determine when the channel is ready for use.
+  void EstablishGpuChannel();
+
+  // Get the GPU channel. Returns NULL if the channel is not established or
+  // has been lost.
+  GpuChannelHost* GetGpuChannel();
+
  private:
   virtual void OnControlMessageReceived(const IPC::Message& msg);
 
   void Init();
 
   void OnUpdateVisitedLinks(base::SharedMemoryHandle table);
   void OnAddVisitedLinks(const VisitedLinkSlave::Fingerprints& fingerprints);
   void OnResetVisitedLinks();
   void OnSetZoomLevelForCurrentHost(const std::string& host, int zoom_level);
   void OnSetContentSettingsForCurrentHost(
@@ skipping 35 matching lines @@
   void OnPurgeMemory();
   void OnPurgePluginListCache(bool reload_pages);
 
   void OnInitSpellChecker(IPC::PlatformFileForTransit bdict_file,
                           const std::vector<std::string>& custom_words,
                           const std::string& language,
                           bool auto_spell_correct);
   void OnSpellCheckWordAdded(const std::string& word);
   void OnSpellCheckEnableAutoSpellCorrect(bool enable);
 
+  void OnGpuChannelEstablished(const IPC::ChannelHandle& channel_handle);
+
   // Gather usage statistics from the in-memory cache and inform our host.
   // These functions should be call periodically so that the host can make
   // decisions about how to allocation resources using current information.
   void InformHostOfCacheStats();
 
   // We initialize WebKit as late as possible.
   void EnsureWebKitInitialized();
 
   // A task we invoke periodically to assist with idle cleanup.
   void IdleHandler();
@@ skipping 48 matching lines @@
   bool notify_webkit_of_modal_loop_;
   bool did_notify_webkit_of_modal_loop_;
 
   // Timer that periodically calls IdleHandler.
   base::RepeatingTimer<RenderThread> idle_timer_;
 
   // Same as above, but on a longer timer and will run even if the process is
   // not idle, to ensure that IdleHandle gets called eventually.
   base::RepeatingTimer<RenderThread> forced_idle_timer_;
 
+  // The channel from the renderer process to the GPU process.
+  scoped_refptr<GpuChannelHost> gpu_channel_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderThread);
 };
 
 #endif  // CHROME_RENDERER_RENDER_THREAD_H_