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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkSurface_DEFINED | 8 #ifndef SkSurface_DEFINED |
9 #define SkSurface_DEFINED | 9 #define SkSurface_DEFINED |
10 | 10 |
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113 * Used to wrap a pre-existing 3D API rendering target as a SkSurface. Skia
will not assume | 113 * Used to wrap a pre-existing 3D API rendering target as a SkSurface. Skia
will not assume |
114 * ownership of the render target and the client must ensure the render tar
get is valid for the | 114 * ownership of the render target and the client must ensure the render tar
get is valid for the |
115 * lifetime of the SkSurface. | 115 * lifetime of the SkSurface. |
116 */ | 116 */ |
117 static SkSurface* NewFromBackendRenderTarget(GrContext*, const GrBackendRend
erTargetDesc&, | 117 static SkSurface* NewFromBackendRenderTarget(GrContext*, const GrBackendRend
erTargetDesc&, |
118 const SkSurfaceProps*); | 118 const SkSurfaceProps*); |
119 | 119 |
120 /** | 120 /** |
121 * Return a new surface whose contents will be drawn to an offscreen | 121 * Return a new surface whose contents will be drawn to an offscreen |
122 * render target, allocated by the surface. | 122 * render target, allocated by the surface. |
| 123 * |
| 124 * The GrTextureStorageAllocator will be reused if SkImage snapshots create |
| 125 * additional textures. |
123 */ | 126 */ |
124 static SkSurface* NewRenderTarget(GrContext*, Budgeted, const SkImageInfo&,
int sampleCount, | 127 static SkSurface* NewRenderTarget( |
125 const SkSurfaceProps* = NULL); | 128 GrContext*, Budgeted, const SkImageInfo&, int sampleCount, const SkS
urfaceProps* = NULL, |
| 129 GrTextureStorageAllocator = GrTextureStorageAllocator()); |
126 | 130 |
127 static SkSurface* NewRenderTarget(GrContext* gr, Budgeted b, const SkImageIn
fo& info) { | 131 static SkSurface* NewRenderTarget(GrContext* gr, Budgeted b, const SkImageIn
fo& info) { |
128 return NewRenderTarget(gr, b, info, 0, NULL); | 132 return NewRenderTarget(gr, b, info, 0); |
129 } | 133 } |
130 | 134 |
131 int width() const { return fWidth; } | 135 int width() const { return fWidth; } |
132 int height() const { return fHeight; } | 136 int height() const { return fHeight; } |
133 | 137 |
134 /** | 138 /** |
135 * Returns a unique non-zero, unique value identifying the content of this | 139 * Returns a unique non-zero, unique value identifying the content of this |
136 * surface. Each time the content is changed changed, either by drawing | 140 * surface. Each time the content is changed changed, either by drawing |
137 * into this surface, or explicitly calling notifyContentChanged()) this | 141 * into this surface, or explicitly calling notifyContentChanged()) this |
138 * method will return a new value. | 142 * method will return a new value. |
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288 private: | 292 private: |
289 const SkSurfaceProps fProps; | 293 const SkSurfaceProps fProps; |
290 const int fWidth; | 294 const int fWidth; |
291 const int fHeight; | 295 const int fHeight; |
292 uint32_t fGenerationID; | 296 uint32_t fGenerationID; |
293 | 297 |
294 typedef SkRefCnt INHERITED; | 298 typedef SkRefCnt INHERITED; |
295 }; | 299 }; |
296 | 300 |
297 #endif | 301 #endif |
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