Implement GLES video renderer in player_x11

media/tools/player_x11/gl_video_renderer.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 MEDIA_TOOLS_PLAYER_X11_GL_VIDEO_RENDERER_H_
+#define MEDIA_TOOLS_PLAYER_X11_GL_VIDEO_RENDERER_H_
+
+#include <GL/glew.h>
+#include <GL/glxew.h>
+
+#include "base/lock.h"
+#include "base/scoped_ptr.h"
+#include "media/base/factory.h"
+#include "media/filters/video_renderer_base.h"
+
+class GlVideoRenderer : public media::VideoRendererBase {
+ public:
+  static media::FilterFactory* CreateFactory(Display* display,
+                                             Window window) {
+    return new media::FilterFactoryImpl2<
+        GlVideoRenderer, Display*, Window>(display, window);
+  }
+
+  GlVideoRenderer(Display* display, Window window);
+
+  // This method is called to paint the current video frame to the assigned
+  // window.
+  virtual void Paint();

[scherkus (not reviewing), 2010/02/12 01:04:20]

this doesn't need to be virtual

+
+  // media::FilterFactoryImpl2 Implementation.
+  static bool IsMediaFormatSupported(const media::MediaFormat& media_format);
+
+  static GlVideoRenderer* instance() { return instance_; }
+
+ protected:
+  // VideoRendererBase implementation.
+  virtual bool OnInitialize(media::VideoDecoder* decoder);
+  virtual void OnStop();
+  virtual void OnFrameAvailable();
+
+ private:
+  // Only allow to be deleted by reference counting.
+  friend class scoped_refptr<GlVideoRenderer>;
+  virtual ~GlVideoRenderer();
+
+  int width_;
+  int height_;
+
+  Display* display_;
+  Window window_;
+
+  // Protects |new_frame_|.
+  Lock lock_;
+  bool new_frame_;
+
+  // GL context.
+  GLXContext gl_context_;
+
+  // 3 textures, one for each plane.
+  GLuint textures_[3];
+
+  // Shaders and program for YUV->RGB conversion.
+  GLuint vertex_shader_;
+  GLuint fragment_shader_;
+  GLuint program_;
+
+  static GlVideoRenderer* instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(GlVideoRenderer);
+};
+
+#endif  // MEDIA_TOOLS_PLAYER_X11_GL_VIDEO_RENDERER_H_