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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 GrTextureStripAtlas_DEFINED | 8 #ifndef GrTextureStripAtlas_DEFINED |
9 #define GrTextureStripAtlas_DEFINED | 9 #define GrTextureStripAtlas_DEFINED |
10 | 10 |
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139 | 139 |
140 // Hash table entry for atlases | 140 // Hash table entry for atlases |
141 class AtlasEntry : public ::SkNoncopyable { | 141 class AtlasEntry : public ::SkNoncopyable { |
142 public: | 142 public: |
143 // for SkTDynamicHash | 143 // for SkTDynamicHash |
144 static const Desc& GetKey(const AtlasEntry& entry) { return entry.fDesc;
} | 144 static const Desc& GetKey(const AtlasEntry& entry) { return entry.fDesc;
} |
145 static uint32_t Hash(const Desc& desc) { return SkChecksum::Murmur3(&des
c, sizeof(Desc)); } | 145 static uint32_t Hash(const Desc& desc) { return SkChecksum::Murmur3(&des
c, sizeof(Desc)); } |
146 | 146 |
147 // AtlasEntry proper | 147 // AtlasEntry proper |
148 AtlasEntry() : fAtlas(NULL) {} | 148 AtlasEntry() : fAtlas(NULL) {} |
149 ~AtlasEntry() { SkDELETE(fAtlas); } | 149 ~AtlasEntry() { delete fAtlas; } |
150 Desc fDesc; | 150 Desc fDesc; |
151 GrTextureStripAtlas* fAtlas; | 151 GrTextureStripAtlas* fAtlas; |
152 }; | 152 }; |
153 | 153 |
154 class Hash; | 154 class Hash; |
155 static Hash* gAtlasCache; | 155 static Hash* gAtlasCache; |
156 | 156 |
157 static Hash* GetCache(); | 157 static Hash* GetCache(); |
158 | 158 |
159 // We increment gCacheCount for each atlas | 159 // We increment gCacheCount for each atlas |
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180 // Head and tail for linked list of least-recently-used rows (front = least
recently used). | 180 // Head and tail for linked list of least-recently-used rows (front = least
recently used). |
181 // Note that when a texture is locked, it gets removed from this list until
it is unlocked. | 181 // Note that when a texture is locked, it gets removed from this list until
it is unlocked. |
182 AtlasRow* fLRUFront; | 182 AtlasRow* fLRUFront; |
183 AtlasRow* fLRUBack; | 183 AtlasRow* fLRUBack; |
184 | 184 |
185 // A list of pointers to AtlasRows that currently contain cached images, sor
ted by key | 185 // A list of pointers to AtlasRows that currently contain cached images, sor
ted by key |
186 SkTDArray<AtlasRow*> fKeyTable; | 186 SkTDArray<AtlasRow*> fKeyTable; |
187 }; | 187 }; |
188 | 188 |
189 #endif | 189 #endif |
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