rendering_helper - Use real GLSurface and GLContext.

content/common/gpu/media/rendering_helper.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_COMMON_GPU_MEDIA_RENDERING_HELPER_H_
 #define CONTENT_COMMON_GPU_MEDIA_RENDERING_HELPER_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_context.h"
+#include "ui/gl/gl_surface.h"
 
 namespace base {
 class MessageLoop;
 class WaitableEvent;
 }
 
-#if !defined(OS_WIN) && defined(ARCH_CPU_X86_FAMILY)
-#define GL_VARIANT_GLX 1
-typedef GLXContext NativeContextType;
-#else
-#define GL_VARIANT_EGL 1
-typedef EGLContext NativeContextType;
-#endif
-
 namespace content {
 
 struct RenderingHelperParams;
 
 // Creates and draws textures used by the video decoder.
 // This class is not thread safe and thus all the methods of this class
 // (except for ctor/dtor) ensure they're being run on a single thread.
 class RenderingHelper {
  public:
   // Interface for the content provider of the RenderingHelper.
   class Client {
    public:
     // Callback to tell client to render the content.
     virtual void RenderContent(RenderingHelper* helper) = 0;
 
     // Callback to get the desired window size of the client.
     virtual const gfx::Size& GetWindowSize() = 0;
 
    protected:
     virtual ~Client() {}
   };
 
   RenderingHelper();
   ~RenderingHelper();
 
+  static bool InitializeOneOff();
+
   // Create the render context and windows by the specified dimensions.
   void Initialize(const RenderingHelperParams& params,
                   base::WaitableEvent* done);
 
   // Undo the effects of Initialize() and signal |*done|.
   void UnInitialize(base::WaitableEvent* done);
 
   // Return a newly-created GLES2 texture id of the specified size, and
   // signal |*done|.
   void CreateTexture(uint32 texture_target,
                      uint32* texture_id,
                      const gfx::Size& size,
                      base::WaitableEvent* done);
 
   // Render thumbnail in the |texture_id| to the FBO buffer using target
   // |texture_target|.
   void RenderThumbnail(uint32 texture_target, uint32 texture_id);
 
   // Render |texture_id| to the current view port of the screen using target
   // |texture_target|.
   void RenderTexture(uint32 texture_target, uint32 texture_id);
 
   // Delete |texture_id|.
   void DeleteTexture(uint32 texture_id);
 
   // Get the platform specific handle to the OpenGL display.
   void* GetGLDisplay();
 
   // Get the platform specific handle to the OpenGL context.
-  NativeContextType GetGLContext();
+  void* GetGLContext();
 
   // Get rendered thumbnails as RGB.
   // Sets alpha_solid to true if the alpha channel is entirely 0xff.
   void GetThumbnailsAsRGB(std::vector<unsigned char>* rgb,
                           bool* alpha_solid,
                           base::WaitableEvent* done);
 
  private:
   void Clear();
 
   void RenderContent();
 
   void LayoutRenderingAreas();
 
   // Timer to trigger the RenderContent() repeatly.
   scoped_ptr<base::RepeatingTimer<RenderingHelper> > render_timer_;
   base::MessageLoop* message_loop_;
 
-  NativeContextType gl_context_;
+  scoped_refptr<gfx::GLContext> gl_context_;
+  scoped_refptr<gfx::GLSurface> gl_surface_;
 
-#if defined(GL_VARIANT_EGL)
-  EGLDisplay gl_display_;
-  EGLSurface gl_surface_;
-#else
-  XVisualInfo* x_visual_;
-#endif
-
-#if defined(OS_WIN)
-  HWND window_;
-#else
-  Display* x_display_;
-  Window x_window_;
-#endif
+  gfx::AcceleratedWidget window_;
 
   gfx::Size screen_size_;
 
   // The rendering area of each window on the screen.
   std::vector<gfx::Rect> render_areas_;
 
   std::vector<base::WeakPtr<Client> > clients_;
 
   bool render_as_thumbnails_;
   int frame_count_;
@@ skipping 21 matching lines @@
   // larger FBO that is in turn rendered to the window.
   bool render_as_thumbnails;
   // The size of the FBO containing all visible thumbnails.
   gfx::Size thumbnails_page_size;
   // The size of each thumbnail within the FBO.
   gfx::Size thumbnail_size;
 };
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_RENDERING_HELPER_H_