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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrContext_DEFINED | 8 #ifndef GrContext_DEFINED |
9 #define GrContext_DEFINED | 9 #define GrContext_DEFINED |
10 | 10 |
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31 class GrIndexBufferAllocPool; | 31 class GrIndexBufferAllocPool; |
32 class GrInOrderDrawBuffer; | 32 class GrInOrderDrawBuffer; |
33 class GrLayerCache; | 33 class GrLayerCache; |
34 class GrOvalRenderer; | 34 class GrOvalRenderer; |
35 class GrPath; | 35 class GrPath; |
36 class GrPathRenderer; | 36 class GrPathRenderer; |
37 class GrResourceEntry; | 37 class GrResourceEntry; |
38 class GrResourceCache; | 38 class GrResourceCache; |
39 class GrStencilBuffer; | 39 class GrStencilBuffer; |
40 class GrTestTarget; | 40 class GrTestTarget; |
| 41 class GrTextContext; |
41 class GrTextureParams; | 42 class GrTextureParams; |
42 class GrVertexBuffer; | 43 class GrVertexBuffer; |
43 class GrVertexBufferAllocPool; | 44 class GrVertexBufferAllocPool; |
44 class GrStrokeInfo; | 45 class GrStrokeInfo; |
45 class GrSoftwarePathRenderer; | 46 class GrSoftwarePathRenderer; |
46 class SkStrokeRec; | 47 class SkStrokeRec; |
47 | 48 |
48 class SK_API GrContext : public SkRefCnt { | 49 class SK_API GrContext : public SkRefCnt { |
49 public: | 50 public: |
50 SK_DECLARE_INST_COUNT(GrContext) | 51 SK_DECLARE_INST_COUNT(GrContext) |
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187 */ | 188 */ |
188 void addResourceToCache(const GrResourceKey&, GrCacheable*); | 189 void addResourceToCache(const GrResourceKey&, GrCacheable*); |
189 | 190 |
190 /** | 191 /** |
191 * Finds a resource in the cache, based on the specified key. This is intend
ed for use in | 192 * Finds a resource in the cache, based on the specified key. This is intend
ed for use in |
192 * conjunction with addResourceToCache(). The return value will be NULL if n
ot found. The | 193 * conjunction with addResourceToCache(). The return value will be NULL if n
ot found. The |
193 * caller must balance with a call to unref(). | 194 * caller must balance with a call to unref(). |
194 */ | 195 */ |
195 GrCacheable* findAndRefCachedResource(const GrResourceKey&); | 196 GrCacheable* findAndRefCachedResource(const GrResourceKey&); |
196 | 197 |
| 198 /** |
| 199 * Creates a new text rendering context that is optimal for the |
| 200 * render target and the context. Caller assumes the ownership |
| 201 * of the returned object. The returned object must be deleted |
| 202 * before the context is destroyed. |
| 203 */ |
| 204 GrTextContext* createTextContext(GrRenderTarget*, |
| 205 const SkDeviceProperties&, |
| 206 bool enableDistanceFieldFonts); |
| 207 |
197 /////////////////////////////////////////////////////////////////////////// | 208 /////////////////////////////////////////////////////////////////////////// |
198 // Textures | 209 // Textures |
199 | 210 |
200 /** | 211 /** |
201 * Creates a new entry, based on the specified key and texture and returns i
t. The caller owns a | 212 * Creates a new entry, based on the specified key and texture and returns i
t. The caller owns a |
202 * ref on the returned texture which must be balanced by a call to unref. | 213 * ref on the returned texture which must be balanced by a call to unref. |
203 * | 214 * |
204 * @param params The texture params used to draw a texture may help deter
mine | 215 * @param params The texture params used to draw a texture may help deter
mine |
205 * the cache entry used. (e.g. different versions may exist | 216 * the cache entry used. (e.g. different versions may exist |
206 * for different wrap modes on GPUs with limited NPOT | 217 * for different wrap modes on GPUs with limited NPOT |
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1011 GrTexture* createResizedTexture(const GrTextureDesc& desc, | 1022 GrTexture* createResizedTexture(const GrTextureDesc& desc, |
1012 const GrCacheID& cacheID, | 1023 const GrCacheID& cacheID, |
1013 const void* srcData, | 1024 const void* srcData, |
1014 size_t rowBytes, | 1025 size_t rowBytes, |
1015 bool filter); | 1026 bool filter); |
1016 | 1027 |
1017 // Needed so GrTexture's returnToCache helper function can call | 1028 // Needed so GrTexture's returnToCache helper function can call |
1018 // addExistingTextureToCache | 1029 // addExistingTextureToCache |
1019 friend class GrTexture; | 1030 friend class GrTexture; |
1020 friend class GrStencilAndCoverPathRenderer; | 1031 friend class GrStencilAndCoverPathRenderer; |
| 1032 friend class GrStencilAndCoverTextContext; |
1021 | 1033 |
1022 // Add an existing texture to the texture cache. This is intended solely | 1034 // Add an existing texture to the texture cache. This is intended solely |
1023 // for use with textures released from an GrAutoScratchTexture. | 1035 // for use with textures released from an GrAutoScratchTexture. |
1024 void addExistingTextureToCache(GrTexture* texture); | 1036 void addExistingTextureToCache(GrTexture* texture); |
1025 | 1037 |
1026 /** | 1038 /** |
1027 * These functions create premul <-> unpremul effects if it is possible to g
enerate a pair | 1039 * These functions create premul <-> unpremul effects if it is possible to g
enerate a pair |
1028 * of effects that make a readToUPM->writeToPM->readToUPM cycle invariant. O
therwise, they | 1040 * of effects that make a readToUPM->writeToPM->readToUPM cycle invariant. O
therwise, they |
1029 * return NULL. | 1041 * return NULL. |
1030 */ | 1042 */ |
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1133 } | 1145 } |
1134 | 1146 |
1135 GrTexture* texture() { return fTexture; } | 1147 GrTexture* texture() { return fTexture; } |
1136 | 1148 |
1137 private: | 1149 private: |
1138 GrContext* fContext; | 1150 GrContext* fContext; |
1139 GrTexture* fTexture; | 1151 GrTexture* fTexture; |
1140 }; | 1152 }; |
1141 | 1153 |
1142 #endif | 1154 #endif |
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