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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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