media: SkCanvasVideoRenderer support for YUV native videoframes.

media/blink/skcanvas_video_renderer.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 MEDIA_BLINK_SKCANVAS_VIDEO_RENDERER_H_
 #define MEDIA_BLINK_SKCANVAS_VIDEO_RENDERER_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "media/base/media_export.h"
 #include "media/base/video_rotation.h"
 #include "media/filters/context_3d.h"
 #include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "ui/gfx/geometry/rect.h"
 
 class SkCanvas;
 
 namespace media {
 
 class VideoFrame;
 class VideoImageGenerator;
 
@@ skipping 29 matching lines @@
   // should point into a buffer large enough to hold as many 32 bit RGBA pixels
   // as are in the visible_rect() area of the frame.
   static void ConvertVideoFrameToRGBPixels(
       const scoped_refptr<media::VideoFrame>& video_frame,
       void* rgb_pixels,
       size_t row_bytes);
 
   // Copy the contents of texture of |video_frame| to texture |texture|.
   // |level|, |internal_format|, |type| specify target texture |texture|.
   // The format of |video_frame| must be VideoFrame::NATIVE_TEXTURE.
-  static void CopyVideoFrameTextureToGLTexture(gpu::gles2::GLES2Interface* gl,
-                                               VideoFrame* video_frame,
-                                               unsigned int texture,
-                                               unsigned int internal_format,
-                                               unsigned int type,
-                                               bool premultiply_alpha,
-                                               bool flip_y);
+  static void CopyVideoFrameSingleTextureToGLTexture(
+      gpu::gles2::GLES2Interface* gl,
+      VideoFrame* video_frame,
+      unsigned int texture,
+      unsigned int internal_format,
+      unsigned int type,
+      bool premultiply_alpha,
+      bool flip_y);
 
  private:
   void ResetLastFrame();
   void ResetAcceleratedLastFrame();
 
   // An RGB bitmap and corresponding timestamp of the previously converted
   // video frame data by software color space conversion.
   SkBitmap last_frame_;
   base::TimeDelta last_frame_timestamp_;
   // If |last_frame_| is not used for a while, it's deleted to save memory.
   base::DelayTimer<SkCanvasVideoRenderer> frame_deleting_timer_;
 
   // This is a hardware accelerated copy of the frame generated by
   // |accelerated_generator_|.
   // It's used when |canvas| parameter in Paint() is Ganesh canvas.
   // Note: all GrContext in SkCanvas instances are same.
+  scoped_ptr<SkImage> accelerated_last_image_;
   SkBitmap accelerated_last_frame_;
   VideoImageGenerator* accelerated_generator_;
   base::TimeDelta accelerated_last_frame_timestamp_;
   base::DelayTimer<SkCanvasVideoRenderer> accelerated_frame_deleting_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_SKCANVAS_VIDEO_RENDERER_H_