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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #ifndef GrAtlas_DEFINED | 9 #ifndef GrAtlas_DEFINED |
10 #define GrAtlas_DEFINED | 10 #define GrAtlas_DEFINED |
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34 SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrPlot); | 34 SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrPlot); |
35 | 35 |
36 // This returns a plot ID unique to each plot in a given GrAtlas. They are | 36 // This returns a plot ID unique to each plot in a given GrAtlas. They are |
37 // consecutive and start at 0. | 37 // consecutive and start at 0. |
38 int id() const { return fID; } | 38 int id() const { return fID; } |
39 | 39 |
40 GrTexture* texture() const { return fTexture; } | 40 GrTexture* texture() const { return fTexture; } |
41 | 41 |
42 bool addSubImage(int width, int height, const void*, SkIPoint16*); | 42 bool addSubImage(int width, int height, const void*, SkIPoint16*); |
43 | 43 |
44 GrDrawTarget::DrawToken drawToken() const { return fDrawToken; } | |
45 void setDrawToken(GrDrawTarget::DrawToken draw) { fDrawToken = draw; } | |
46 | |
47 void uploadToTexture(); | |
48 | |
49 void resetRects(); | 44 void resetRects(); |
50 | 45 |
51 private: | 46 private: |
52 GrPlot(); | 47 GrPlot(); |
53 ~GrPlot(); // does not try to delete the fNext field | 48 ~GrPlot(); // does not try to delete the fNext field |
54 void init(GrAtlas* atlas, int id, int offX, int offY, int width, int height,
size_t bpp, | 49 void init(GrAtlas* atlas, int id, int offX, int offY, int width, int height,
size_t bpp, |
55 bool batchUploads); | 50 bool batchUploads); |
56 | 51 |
57 // for recycling | |
58 GrDrawTarget::DrawToken fDrawToken; | |
59 | |
60 int fID; | 52 int fID; |
61 unsigned char* fPlotData; | 53 unsigned char* fPlotData; |
62 GrTexture* fTexture; | 54 GrTexture* fTexture; |
63 GrRectanizer* fRects; | 55 GrRectanizer* fRects; |
64 GrAtlas* fAtlas; | 56 GrAtlas* fAtlas; |
65 SkIPoint16 fOffset; // the offset of the plot in the bac
king texture | 57 SkIPoint16 fOffset; // the offset of the plot in the bac
king texture |
66 size_t fBytesPerPixel; | 58 size_t fBytesPerPixel; |
67 SkIRect fDirtyRect; | 59 SkIRect fDirtyRect; |
68 bool fDirty; | 60 bool fDirty; |
69 bool fBatchUploads; | 61 bool fBatchUploads; |
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101 // Adds a width x height subimage to the atlas. Upon success it returns | 93 // Adds a width x height subimage to the atlas. Upon success it returns |
102 // the containing GrPlot and absolute location in the backing texture. | 94 // the containing GrPlot and absolute location in the backing texture. |
103 // NULL is returned if the subimage cannot fit in the atlas. | 95 // NULL is returned if the subimage cannot fit in the atlas. |
104 // If provided, the image data will either be immediately uploaded or | 96 // If provided, the image data will either be immediately uploaded or |
105 // written to the CPU-side backing bitmap. | 97 // written to the CPU-side backing bitmap. |
106 GrPlot* addToAtlas(ClientPlotUsage*, int width, int height, const void* imag
e, SkIPoint16* loc); | 98 GrPlot* addToAtlas(ClientPlotUsage*, int width, int height, const void* imag
e, SkIPoint16* loc); |
107 | 99 |
108 // remove reference to this plot | 100 // remove reference to this plot |
109 static void RemovePlot(ClientPlotUsage* usage, const GrPlot* plot); | 101 static void RemovePlot(ClientPlotUsage* usage, const GrPlot* plot); |
110 | 102 |
111 // get a plot that's not being used by the current draw | |
112 // this allows us to overwrite this plot without flushing | |
113 GrPlot* getUnusedPlot(); | |
114 | |
115 GrTexture* getTexture() const { | 103 GrTexture* getTexture() const { |
116 return fTexture; | 104 return fTexture; |
117 } | 105 } |
118 | 106 |
119 void uploadPlotsToTexture(); | |
120 | |
121 enum IterOrder { | 107 enum IterOrder { |
122 kLRUFirst_IterOrder, | 108 kLRUFirst_IterOrder, |
123 kMRUFirst_IterOrder | 109 kMRUFirst_IterOrder |
124 }; | 110 }; |
125 | 111 |
126 typedef GrPlotList::Iter PlotIter; | 112 typedef GrPlotList::Iter PlotIter; |
127 GrPlot* iterInit(PlotIter* iter, IterOrder order) { | 113 GrPlot* iterInit(PlotIter* iter, IterOrder order) { |
128 return iter->init(fPlotList, kLRUFirst_IterOrder == order | 114 return iter->init(fPlotList, kLRUFirst_IterOrder == order |
129 ? GrPlotList::Iter::kTail
_IterStart | 115 ? GrPlotList::Iter::kTail
_IterStart |
130 : GrPlotList::Iter::kHead
_IterStart); | 116 : GrPlotList::Iter::kHead
_IterStart); |
131 } | 117 } |
132 | 118 |
133 private: | 119 private: |
134 void makeMRU(GrPlot* plot); | 120 void makeMRU(GrPlot* plot); |
135 | 121 |
136 GrGpu* fGpu; | 122 GrGpu* fGpu; |
137 GrPixelConfig fPixelConfig; | 123 GrPixelConfig fPixelConfig; |
138 GrSurfaceFlags fFlags; | 124 GrSurfaceFlags fFlags; |
139 GrTexture* fTexture; | 125 GrTexture* fTexture; |
140 SkISize fBackingTextureSize; | 126 SkISize fBackingTextureSize; |
141 int fNumPlotsX; | 127 int fNumPlotsX; |
142 int fNumPlotsY; | 128 int fNumPlotsY; |
143 bool fBatchUploads; | 129 bool fBatchUploads; |
144 | 130 |
145 // allocated array of GrPlots | 131 // allocated array of GrPlots |
146 GrPlot* fPlotArray; | 132 GrPlot* fPlotArray; |
147 // LRU list of GrPlots (MRU at head - LRU at tail) | 133 // LRU list of GrPlots (MRU at head - LRU at tail) |
148 GrPlotList fPlotList; | 134 GrPlotList fPlotList; |
149 }; | 135 }; |
150 | 136 |
151 #endif | 137 #endif |
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