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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 "media/base/media_export.h" | 10 #include "media/base/media_export.h" |
11 #include "media/base/video_rotation.h" | 11 #include "media/base/video_rotation.h" |
12 #include "third_party/skia/include/core/SkBitmap.h" | 12 #include "third_party/skia/include/core/SkBitmap.h" |
13 #include "third_party/skia/include/core/SkXfermode.h" | 13 #include "third_party/skia/include/core/SkXfermode.h" |
14 #include "ui/gfx/rect.h" | 14 #include "ui/gfx/rect.h" |
15 | 15 |
16 class GrContext; | |
16 class SkCanvas; | 17 class SkCanvas; |
17 | 18 |
19 namespace gpu { | |
20 namespace gles2 { | |
21 class GLES2Interface; | |
22 } | |
23 } | |
24 | |
18 namespace media { | 25 namespace media { |
19 | 26 |
20 class VideoFrame; | 27 class VideoFrame; |
21 class VideoImageGenerator; | 28 class VideoImageGenerator; |
22 | 29 |
23 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV | 30 // Handles rendering of VideoFrames to SkCanvases, doing any necessary YUV |
24 // conversion and caching of resulting RGB bitmaps. | 31 // conversion and caching of resulting RGB bitmaps. |
25 class MEDIA_EXPORT SkCanvasVideoRenderer { | 32 class MEDIA_EXPORT SkCanvasVideoRenderer { |
26 public: | 33 public: |
27 SkCanvasVideoRenderer(); | 34 SkCanvasVideoRenderer(); |
28 ~SkCanvasVideoRenderer(); | 35 ~SkCanvasVideoRenderer(); |
29 | 36 |
37 struct Context3DProvider { | |
scherkus (not reviewing)
2014/10/15 17:10:24
to be clear, we need this because we don't depend
| |
38 gpu::gles2::GLES2Interface* gl; | |
39 class GrContext* gr_context; | |
40 }; | |
30 // Paints |video_frame| on |canvas|, scaling and rotating the result to fit | 41 // Paints |video_frame| on |canvas|, scaling and rotating the result to fit |
31 // dimensions specified by |dest_rect|. | 42 // dimensions specified by |dest_rect|. |
32 // | 43 // |
33 // Black will be painted on |canvas| if |video_frame| is null. | 44 // Black will be painted on |canvas| if |video_frame| is null. |
34 void Paint(const scoped_refptr<VideoFrame>& video_frame, | 45 void Paint(const scoped_refptr<VideoFrame>& video_frame, |
35 SkCanvas* canvas, | 46 SkCanvas* canvas, |
36 const gfx::RectF& dest_rect, | 47 const gfx::RectF& dest_rect, |
37 uint8 alpha, | 48 uint8 alpha, |
38 SkXfermode::Mode mode, | 49 SkXfermode::Mode mode, |
39 VideoRotation video_rotation); | 50 VideoRotation video_rotation, |
51 Context3DProvider* context_provider); | |
40 | 52 |
41 // Copy |video_frame| on |canvas|. | 53 // Copy |video_frame| on |canvas|. |
42 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas); | 54 void Copy(const scoped_refptr<VideoFrame>&, SkCanvas* canvas); |
43 | 55 |
56 static void CopyVideoFrameToTexture(gpu::gles2::GLES2Interface* gl, | |
57 media::VideoFrame* video_frame, | |
58 unsigned int texture, | |
59 unsigned int level, | |
60 unsigned int internal_format, | |
61 unsigned int type, | |
62 bool premultiply_alpha, | |
63 bool flip_y); | |
64 | |
44 private: | 65 private: |
45 VideoImageGenerator* generator_; | 66 void CleanUpTemporaryBuffers(); |
46 | 67 |
47 // An RGB bitmap and corresponding timestamp of the previously converted | 68 // An RGB bitmap and corresponding timestamp of the previously converted |
48 // video frame data. | 69 // video frame data. |
49 SkBitmap last_frame_; | 70 SkBitmap last_frame_; |
71 VideoImageGenerator* generator_; | |
50 base::TimeDelta last_frame_timestamp_; | 72 base::TimeDelta last_frame_timestamp_; |
51 | 73 |
74 // It's possible to be used by accelerated client and non-accelerated client. | |
75 SkBitmap accelerated_last_frame_; | |
76 base::TimeDelta accelerated_last_frame_timestamp_; | |
77 | |
52 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); | 78 DISALLOW_COPY_AND_ASSIGN(SkCanvasVideoRenderer); |
53 }; | 79 }; |
54 | 80 |
55 } // namespace media | 81 } // namespace media |
56 | 82 |
57 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ | 83 #endif // MEDIA_FILTERS_SKCANVAS_VIDEO_RENDERER_H_ |
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