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Side by Side Diff: cc/raster/raster_source.h

Issue 2797583002: cc: Add color space to image decode caches (Closed)
Patch Set: Remove dead code Created 3 years, 8 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 CC_RASTER_RASTER_SOURCE_H_ 5 #ifndef CC_RASTER_RASTER_SOURCE_H_
6 #define CC_RASTER_RASTER_SOURCE_H_ 6 #define CC_RASTER_RASTER_SOURCE_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 9
10 #include <memory> 10 #include <memory>
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61 // Helper function to apply a few common operations before passing the canvas 61 // Helper function to apply a few common operations before passing the canvas
62 // to the shorter version. This is useful for rastering into tiles. 62 // to the shorter version. This is useful for rastering into tiles.
63 // canvas is expected to be backed by a tile, with a default state. 63 // canvas is expected to be backed by a tile, with a default state.
64 // raster_transform will be applied to the display list, rastering the list 64 // raster_transform will be applied to the display list, rastering the list
65 // into the "content space". 65 // into the "content space".
66 // canvas_bitmap_rect defines the extent of the tile in the content space, 66 // canvas_bitmap_rect defines the extent of the tile in the content space,
67 // i.e. contents in the rect will be cropped and translated onto the canvas. 67 // i.e. contents in the rect will be cropped and translated onto the canvas.
68 // canvas_playback_rect can be used to replay only part of the recording in, 68 // canvas_playback_rect can be used to replay only part of the recording in,
69 // the content space, so only a sub-rect of the tile gets rastered. 69 // the content space, so only a sub-rect of the tile gets rastered.
70 void PlaybackToCanvas(SkCanvas* canvas, 70 void PlaybackToCanvas(SkCanvas* canvas,
71 const gfx::ColorSpace& canvas_color_space, 71 const gfx::ColorSpace& target_color_space,
72 const gfx::Rect& canvas_bitmap_rect, 72 const gfx::Rect& canvas_bitmap_rect,
73 const gfx::Rect& canvas_playback_rect, 73 const gfx::Rect& canvas_playback_rect,
74 const gfx::AxisTransform2d& raster_transform, 74 const gfx::AxisTransform2d& raster_transform,
75 const PlaybackSettings& settings) const; 75 const PlaybackSettings& settings) const;
76 76
77 // Raster this RasterSource into the given canvas. Canvas states such as 77 // Raster this RasterSource into the given canvas. Canvas states such as
78 // CTM and clip region will be respected. This function will replace pixels 78 // CTM and clip region will be respected. This function will replace pixels
79 // in the clip region without blending. It is assumed that existing pixels 79 // in the clip region without blending. It is assumed that existing pixels
80 // may be uninitialized and will be cleared before playback. 80 // may be uninitialized and will be cleared before playback.
81 // 81 //
82 // Virtual for testing. 82 // Virtual for testing.
83 // 83 //
84 // Note that this should only be called after the image decode controller has 84 // Note that this should only be called after the image decode controller has
85 // been set, which happens during commit. 85 // been set, which happens during commit.
86 virtual void PlaybackToCanvas(SkCanvas* canvas, 86 virtual void PlaybackToCanvas(SkCanvas* canvas,
87 const gfx::ColorSpace& canvas_color_space, 87 const gfx::ColorSpace& target_color_space,
88 const PlaybackSettings& settings) const; 88 const PlaybackSettings& settings) const;
89 89
90 // Returns whether the given rect at given scale is of solid color in 90 // Returns whether the given rect at given scale is of solid color in
91 // this raster source, as well as the solid color value. 91 // this raster source, as well as the solid color value.
92 bool PerformSolidColorAnalysis(const gfx::Rect& content_rect, 92 bool PerformSolidColorAnalysis(const gfx::Rect& content_rect,
93 float contents_scale, 93 float contents_scale,
94 SkColor* color) const; 94 SkColor* color) const;
95 95
96 // Returns true iff the whole raster source is of solid color. 96 // Returns true iff the whole raster source is of solid color.
97 bool IsSolidColor() const; 97 bool IsSolidColor() const;
98 98
99 // Returns the color of the raster source if it is solid color. The results 99 // Returns the color of the raster source if it is solid color. The results
100 // are unspecified if IsSolidColor returns false. 100 // are unspecified if IsSolidColor returns false.
101 SkColor GetSolidColor() const; 101 SkColor GetSolidColor() const;
102 102
103 // Returns the size of this raster source. 103 // Returns the size of this raster source.
104 gfx::Size GetSize() const; 104 gfx::Size GetSize() const;
105 105
106 // Populate the given list with all images that may overlap the given 106 // Populate the given list with all images that may overlap the given
107 // rect in layer space. The returned draw images' matrices are modified as if 107 // rect in layer space. The returned draw images' matrices are modified as if
108 // they were being using during raster at scale |raster_scale|. 108 // they were being using during raster at scale |raster_scale|.
109 void GetDiscardableImagesInRect(const gfx::Rect& layer_rect, 109 void GetDiscardableImagesInRect(const gfx::Rect& layer_rect,
110 float contents_scale, 110 float contents_scale,
111 const gfx::ColorSpace& target_color_space,
111 std::vector<DrawImage>* images) const; 112 std::vector<DrawImage>* images) const;
112 113
113 // Return true iff this raster source can raster the given rect in layer 114 // Return true iff this raster source can raster the given rect in layer
114 // space. 115 // space.
115 bool CoversRect(const gfx::Rect& layer_rect) const; 116 bool CoversRect(const gfx::Rect& layer_rect) const;
116 117
117 // Returns true if this raster source has anything to rasterize. 118 // Returns true if this raster source has anything to rasterize.
118 virtual bool HasRecordings() const; 119 virtual bool HasRecordings() const;
119 120
120 // Valid rectangle in which everything is recorded and can be rastered from. 121 // Valid rectangle in which everything is recorded and can be rastered from.
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160 const gfx::Size size_; 161 const gfx::Size size_;
161 const bool clear_canvas_with_debug_color_; 162 const bool clear_canvas_with_debug_color_;
162 const int slow_down_raster_scale_factor_for_debug_; 163 const int slow_down_raster_scale_factor_for_debug_;
163 164
164 // In practice, this is only set once before raster begins, so it's ok with 165 // In practice, this is only set once before raster begins, so it's ok with
165 // respect to threading. 166 // respect to threading.
166 ImageDecodeCache* image_decode_cache_; 167 ImageDecodeCache* image_decode_cache_;
167 168
168 private: 169 private:
169 void RasterCommon(SkCanvas* canvas, 170 void RasterCommon(SkCanvas* canvas,
170 const gfx::ColorSpace& canvas_color_space,
171 SkPicture::AbortCallback* callback) const; 171 SkPicture::AbortCallback* callback) const;
172 172
173 void PrepareForPlaybackToCanvas(SkCanvas* canvas) const; 173 void PrepareForPlaybackToCanvas(SkCanvas* canvas) const;
174 174
175 DISALLOW_COPY_AND_ASSIGN(RasterSource); 175 DISALLOW_COPY_AND_ASSIGN(RasterSource);
176 }; 176 };
177 177
178 } // namespace cc 178 } // namespace cc
179 179
180 #endif // CC_RASTER_RASTER_SOURCE_H_ 180 #endif // CC_RASTER_RASTER_SOURCE_H_
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