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Side by Side Diff: media/filters/skcanvas_video_renderer.h

Issue 818853004: Revert of media: Optimize HW Video to 2D Canvas copy. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 11 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ 5 #ifndef MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
6 #define MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ 6 #define MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
7 7
8 #include "base/memory/ref_counted.h" 8 #include "base/memory/ref_counted.h"
9 #include "base/time/time.h" 9 #include "base/time/time.h"
10 #include "base/timer/timer.h" 10 #include "base/timer/timer.h"
11 #include "media/base/media_export.h" 11 #include "media/base/media_export.h"
12 #include "media/base/video_rotation.h" 12 #include "media/base/video_rotation.h"
13 #include "media/filters/context_3d.h"
14 #include "third_party/skia/include/core/SkBitmap.h" 13 #include "third_party/skia/include/core/SkBitmap.h"
15 #include "third_party/skia/include/core/SkXfermode.h" 14 #include "third_party/skia/include/core/SkXfermode.h"
16 #include "ui/gfx/geometry/rect.h" 15 #include "ui/gfx/geometry/rect.h"
17 16
18 class SkCanvas; 17 class SkCanvas;
19 18
20 namespace media { 19 namespace media {
21 20
22 class VideoFrame; 21 class VideoFrame;
23 class VideoImageGenerator; 22 class VideoImageGenerator;
24 23
25 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV 24 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV
26 // conversion and caching of resulting RGB bitmaps. 25 // conversion and caching of resulting RGB bitmaps.
27 class MEDIA_EXPORT SkCanvasVideoRenderer { 26 class MEDIA_EXPORT SkCanvasVideoRenderer {
28 public: 27 public:
29 SkCanvasVideoRenderer(); 28 SkCanvasVideoRenderer();
30 ~SkCanvasVideoRenderer(); 29 ~SkCanvasVideoRenderer();
31 30
32 // Paints |video_frame| on |canvas|, scaling and rotating the result to fit 31 // Paints |video_frame| on |canvas|, scaling and rotating the result to fit
33 // dimensions specified by |dest_rect|. 32 // dimensions specified by |dest_rect|.
34 // If the format of |video_frame| is VideoFrame::NATIVE_TEXTURE and |canvas|
35 // is ganeshed, |context_3d| must be provided.
36 // 33 //
37 // Black will be painted on |canvas| if |video_frame| is null. 34 // Black will be painted on |canvas| if |video_frame| is null.
38 void Paint(const scoped_refptr<VideoFrame>& video_frame, 35 void Paint(const scoped_refptr<VideoFrame>& video_frame,
39 SkCanvas* canvas, 36 SkCanvas* canvas,
40 const gfx::RectF& dest_rect, 37 const gfx::RectF& dest_rect,
41 uint8 alpha, 38 uint8 alpha,
42 SkXfermode::Mode mode, 39 SkXfermode::Mode mode,
43 VideoRotation video_rotation, 40 VideoRotation video_rotation);
44 const Context3D& context_3d);
45 41
46 // Copy |video_frame| on |canvas|. 42 // Copy |video_frame| on |canvas|.
47 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas); 43 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas);
48 44
49 // Copy the contents of texture of |video_frame| to texture |texture|.
50 // |level|, |internal_format|, |type| specify target texture |texture|.
51 // The format of |video_frame| must be VideoFrame::NATIVE_TEXTURE.
52 static void CopyVideoFrameTextureToGLTexture(gpu::gles2::GLES2Interface* gl,
53 VideoFrame* video_frame,
54 unsigned int texture,
55 unsigned int level,
56 unsigned int internal_format,
57 unsigned int type,
58 bool premultiply_alpha,
59 bool flip_y);
60
61 private: 45 private:
62 void ResetLastFrame(); 46 void ResetLastFrame();
63 void ResetAcceleratedLastFrame(); 47 void ResetAcceleratedLastFrame();
64 48
65 // An RGB bitmap and corresponding timestamp of the previously converted 49 // An RGB bitmap and corresponding timestamp of the previously converted
66 // video frame data by software color space conversion. 50 // video frame data by software color space conversion.
67 SkBitmap last_frame_; 51 SkBitmap last_frame_;
68 base::TimeDelta last_frame_timestamp_; 52 base::TimeDelta last_frame_timestamp_;
69 // If |last_frame_| is not used for a while, it's deleted to save memory. 53 // If |last_frame_| is not used for a while, it's deleted to save memory.
70 base::DelayTimer<SkCanvasVideoRenderer> frame_deleting_timer_; 54 base::DelayTimer<SkCanvasVideoRenderer> frame_deleting_timer_;
71 55
72 // This is a hardware accelerated copy of the frame generated by 56 // This is a hardware accelerated copy of the frame generated by
73 // |accelerated_generator_|. 57 // |accelerated_generator_|.
74 // It's used when |canvas| parameter in Paint() is Ganesh canvas. 58 // It's used when |canvas| parameter in Paint() is Ganesh canvas.
75 // Note: all GrContext in SkCanvas instances are same. 59 // Note: all GrContext in SkCanvas instances are same.
76 SkBitmap accelerated_last_frame_; 60 SkBitmap accelerated_last_frame_;
77 VideoImageGenerator* accelerated_generator_; 61 VideoImageGenerator* accelerated_generator_;
78 base::TimeDelta accelerated_last_frame_timestamp_; 62 base::TimeDelta accelerated_last_frame_timestamp_;
79 base::DelayTimer<SkCanvasVideoRenderer> accelerated_frame_deleting_timer_; 63 base::DelayTimer<SkCanvasVideoRenderer> accelerated_frame_deleting_timer_;
80 64
81 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); 65 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer);
82 }; 66 };
83 67
84 } // namespace media 68 } // namespace media
85 69
86 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ 70 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_
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