Calling OpenGL from the renderer process
- Added ability for renderer processes to render to a real window (Windows only so far).
- Added ability to create offscreen frame buffer objects that can be resized later.
- OpenGL context can have a "parent" context that can access its last swapped back buffer through a texture ID.
- Moved code to establish GPU channel from RenderWidget to RenderThread.
- Changed way service size command buffer object lifetimes are managed.
TEST=trybot and visual verification that OpenGL can clear the browser window to magenta.
BUG=none
Review URL: http://codereview.chromium.org/1136006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42679 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/renderer/render_thread.h b/chrome/renderer/render_thread.h
index fea7e41..3caed00f 100644
--- a/chrome/renderer/render_thread.h
+++ b/chrome/renderer/render_thread.h
@@ -18,9 +18,11 @@
#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;
@@ -165,6 +167,15 @@
// 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);
@@ -220,6 +231,8 @@
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.
@@ -288,6 +301,9 @@
// 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);
};
