Moved renderer implementation from media/filters/ to media/renderers/

media/filters/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_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
-#define MEDIA_FILTERS_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/SkXfermode.h"
-#include "ui/gfx/geometry/rect.h"
-
-class SkCanvas;
-
-namespace media {
-
-class VideoFrame;
-class VideoImageGenerator;
-
-// Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
-// conversion and caching of resulting RGB bitmaps.
-class MEDIA_EXPORT SkCanvasVideoRenderer {
- public:
-  SkCanvasVideoRenderer();
-  ~SkCanvasVideoRenderer();
-
-  // Paints |video_frame| on |canvas|, scaling and rotating the result to fit
-  // dimensions specified by |dest_rect|.
-  // If the format of |video_frame| is VideoFrame::NATIVE_TEXTURE, |context_3d|
-  // must be provided.
-  //
-  // Black will be painted on |canvas| if |video_frame| is null.
-  void Paint(const scoped_refptr<VideoFrame>& video_frame,
-             SkCanvas* canvas,
-             const gfx::RectF& dest_rect,
-             uint8 alpha,
-             SkXfermode::Mode mode,
-             VideoRotation video_rotation,
-             const Context3D& context_3d);
-
-  // Copy |video_frame| on |canvas|.
-  // If the format of |video_frame| is VideoFrame::NATIVE_TEXTURE, |context_3d|
-  // must be provided.
-  void Copy(const scoped_refptr<VideoFrame>& video_frame,
-            SkCanvas* canvas,
-            const Context3D& context_3d);
-
-  // Convert the contents of |video_frame| to raw RGB pixels. |rgb_pixels|
-  // 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 level,
-                                               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.
-  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_FILTERS_SKCANVAS_VIDEO_RENDERER_H_