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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_provider.h" |
13 #include "third_party/skia/include/core/SkBitmap.h" | 14 #include "third_party/skia/include/core/SkBitmap.h" |
| 15 #include "third_party/skia/include/core/SkCanvas.h" |
14 #include "third_party/skia/include/core/SkXfermode.h" | 16 #include "third_party/skia/include/core/SkXfermode.h" |
15 #include "ui/gfx/rect.h" | 17 #include "ui/gfx/rect.h" |
16 | 18 |
17 class SkCanvas; | |
18 | |
19 namespace media { | 19 namespace media { |
20 | 20 |
21 class VideoFrame; | 21 class VideoFrame; |
22 class VideoImageGenerator; | 22 class VideoImageGenerator; |
23 | 23 |
24 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV | 24 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV |
25 // conversion and caching of resulting RGB bitmaps. | 25 // conversion and caching of resulting RGB bitmaps. |
26 class MEDIA_EXPORT SkCanvasVideoRenderer { | 26 class MEDIA_EXPORT SkCanvasVideoRenderer { |
27 public: | 27 public: |
28 SkCanvasVideoRenderer(); | 28 SkCanvasVideoRenderer(); |
29 ~SkCanvasVideoRenderer(); | 29 ~SkCanvasVideoRenderer(); |
30 | 30 |
31 // 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 |
32 // dimensions specified by |dest_rect|. | 32 // dimensions specified by |dest_rect|. |
| 33 // If the format of |video_frame| is VideoFrame::NATIVE_TEXTURE or |canvas| |
| 34 // is ganeshed, |context_provider| must be provided. |
33 // | 35 // |
34 // Black will be painted on |canvas| if |video_frame| is null. | 36 // Black will be painted on |canvas| if |video_frame| is null. |
35 void Paint(const scoped_refptr<VideoFrame>& video_frame, | 37 void Paint(const scoped_refptr<VideoFrame>& video_frame, |
36 SkCanvas* canvas, | 38 SkCanvas* canvas, |
37 const gfx::RectF& dest_rect, | 39 const gfx::RectF& dest_rect, |
38 uint8 alpha, | 40 uint8 alpha, |
39 SkXfermode::Mode mode, | 41 SkXfermode::Mode mode, |
40 VideoRotation video_rotation); | 42 VideoRotation video_rotation, |
| 43 const Context3DProvider& context_provider); |
41 | 44 |
42 // Copy |video_frame| on |canvas|. | 45 // Copy |video_frame| on |canvas|. |
43 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas); | 46 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas); |
44 | 47 |
| 48 // Copy the contents of texture of |video_frame| to texture |texture|. |
| 49 // |level|, |internal_format|, |type| specify target texture |texture|. |
| 50 // The format of |video_frame| must be VideoFrame::NATIVE_TEXTURE. |
| 51 static void CopyVideoFrameTextureToGLTexture(gpu::gles2::GLES2Interface* gl, |
| 52 VideoFrame* video_frame, |
| 53 unsigned int texture, |
| 54 unsigned int level, |
| 55 unsigned int internal_format, |
| 56 unsigned int type, |
| 57 bool premultiply_alpha, |
| 58 bool flip_y); |
| 59 |
45 private: | 60 private: |
46 void ResetLastFrame(); | 61 void ResetLastFrame(); |
47 void ResetAcceleratedLastFrame(); | 62 void ResetAcceleratedLastFrame(); |
48 | 63 |
49 // An RGB bitmap and corresponding timestamp of the previously converted | 64 // An RGB bitmap and corresponding timestamp of the previously converted |
50 // video frame data by software color space conversion. | 65 // video frame data by software color space conversion. |
51 SkBitmap last_frame_; | 66 SkBitmap last_frame_; |
52 base::TimeDelta last_frame_timestamp_; | 67 base::TimeDelta last_frame_timestamp_; |
53 // If |last_frame_| is not used for a while, it's deleted to save memory. | 68 // If |last_frame_| is not used for a while, it's deleted to save memory. |
54 base::DelayTimer<SkCanvasVideoRenderer> frame_deleting_timer_; | 69 base::DelayTimer<SkCanvasVideoRenderer> frame_deleting_timer_; |
55 | 70 |
56 // This is a hardware accelerated copy of the frame generated by | 71 // This is a hardware accelerated copy of the frame generated by |
57 // |accelerated_generator_|. | 72 // |accelerated_generator_|. |
58 // It's used when |canvas| parameter in Paint() is Ganesh canvas. | 73 // It's used when |canvas| parameter in Paint() is Ganesh canvas. |
59 // Note: all GrContext in SkCanvas instances are same. | 74 // Note: all GrContext in SkCanvas instances are same. |
60 SkBitmap accelerated_last_frame_; | 75 SkBitmap accelerated_last_frame_; |
61 VideoImageGenerator* accelerated_generator_; | 76 VideoImageGenerator* accelerated_generator_; |
62 base::TimeDelta accelerated_last_frame_timestamp_; | 77 base::TimeDelta accelerated_last_frame_timestamp_; |
63 base::DelayTimer<SkCanvasVideoRenderer> accelerated_frame_deleting_timer_; | 78 base::DelayTimer<SkCanvasVideoRenderer> accelerated_frame_deleting_timer_; |
64 | 79 |
65 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); | 80 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); |
66 }; | 81 }; |
67 | 82 |
68 } // namespace media | 83 } // namespace media |
69 | 84 |
70 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ | 85 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ |
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