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1 // Copyright 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_PICTURE_H_ | |
6 #define CC_PICTURE_H_ | |
7 | |
8 #include <list> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "base/memory/ref_counted.h" | |
12 #include "cc/base/cc_export.h" | |
13 #include "skia/ext/lazy_pixel_ref.h" | |
14 #include "skia/ext/refptr.h" | |
15 #include "third_party/skia/include/core/SkPixelRef.h" | |
16 #include "third_party/skia/include/core/SkTileGridPicture.h" | |
17 #include "ui/gfx/rect.h" | |
18 | |
19 namespace skia { | |
20 class AnalysisCanvas; | |
21 } | |
22 | |
23 namespace cc { | |
24 | |
25 class ContentLayerClient; | |
26 struct RenderingStats; | |
27 | |
28 class CC_EXPORT Picture | |
29 : public base::RefCountedThreadSafe<Picture> { | |
30 public: | |
31 static scoped_refptr<Picture> Create(gfx::Rect layer_rect); | |
32 | |
33 const gfx::Rect& LayerRect() const { return layer_rect_; } | |
34 const gfx::Rect& OpaqueRect() const { return opaque_rect_; } | |
35 | |
36 // Get thread-safe clone for rasterizing with on a specific thread. | |
37 scoped_refptr<Picture> GetCloneForDrawingOnThread( | |
38 unsigned thread_index) const; | |
39 | |
40 // Make thread-safe clones for rasterizing with. | |
41 void CloneForDrawing(int num_threads); | |
42 | |
43 // Record a paint operation. To be able to safely use this SkPicture for | |
44 // playback on a different thread this can only be called once. | |
45 void Record(ContentLayerClient*, RenderingStats*, | |
46 const SkTileGridPicture::TileGridInfo& tileGridInfo); | |
47 | |
48 // Has Record() been called yet? | |
49 bool HasRecording() const { return picture_.get() != NULL; } | |
50 | |
51 // Apply this contents scale and raster the content rect into the canvas. | |
52 void Raster(SkCanvas* canvas, gfx::Rect content_rect, float contents_scale); | |
53 | |
54 void GatherPixelRefs( | |
55 const gfx::Rect& layer_rect, | |
56 std::list<skia::LazyPixelRef*>& pixel_ref_list); | |
57 | |
58 private: | |
59 Picture(gfx::Rect layer_rect); | |
60 // This constructor assumes SkPicture is already ref'd and transfers | |
61 // ownership to this picture. | |
62 Picture(const skia::RefPtr<SkPicture>&, | |
63 gfx::Rect layer_rect, | |
64 gfx::Rect opaque_rect); | |
65 ~Picture(); | |
66 | |
67 gfx::Rect layer_rect_; | |
68 gfx::Rect opaque_rect_; | |
69 skia::RefPtr<SkPicture> picture_; | |
70 | |
71 typedef std::vector<scoped_refptr<Picture> > PictureVector; | |
72 PictureVector clones_; | |
73 | |
74 friend class base::RefCountedThreadSafe<Picture>; | |
75 DISALLOW_COPY_AND_ASSIGN(Picture); | |
76 }; | |
77 | |
78 } // namespace cc | |
79 | |
80 #endif // CC_PICTURE_H_ | |
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