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comparison: gfx/skia/trunk/src/gpu/GrAllocPool.h
gfx/skia/trunk/src/gpu/GrAllocPool.h
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| -1:000000000000 | 0:ff427e5cb82d |
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| 1 /* | |
| 2 * Copyright 2010 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrAllocPool_DEFINED | |
| 9 #define GrAllocPool_DEFINED | |
| 10 | |
| 11 #include "SkTypes.h" | |
| 12 | |
| 13 class GrAllocPool : public SkNoncopyable { | |
| 14 public: | |
| 15 GrAllocPool(size_t blockSize = 0); | |
| 16 ~GrAllocPool(); | |
| 17 | |
| 18 /** | |
| 19 * Frees all blocks that have been allocated with alloc(). | |
| 20 */ | |
| 21 void reset(); | |
| 22 | |
| 23 /** | |
| 24 * Returns a block of memory bytes size big. This address must not be | |
| 25 * passed to realloc/free/delete or any other function that assumes the | |
| 26 * address was allocated by malloc or new (because it hasn't). | |
| 27 */ | |
| 28 void* alloc(size_t bytes); | |
| 29 | |
| 30 /** | |
| 31 * Releases the most recently allocated bytes back to allocpool. | |
| 32 */ | |
| 33 void release(size_t bytes); | |
| 34 | |
| 35 private: | |
| 36 struct Block; | |
| 37 | |
| 38 Block* fBlock; | |
| 39 size_t fMinBlockSize; | |
| 40 | |
| 41 #ifdef SK_DEBUG | |
| 42 int fBlocksAllocated; | |
| 43 void validate() const; | |
| 44 #else | |
| 45 void validate() const {} | |
| 46 #endif | |
| 47 }; | |
| 48 | |
| 49 template <typename T> class GrTAllocPool { | |
| 50 public: | |
| 51 GrTAllocPool(int count) : fPool(count * sizeof(T)) {} | |
| 52 | |
| 53 void reset() { fPool.reset(); } | |
| 54 T* alloc() { return (T*)fPool.alloc(sizeof(T)); } | |
| 55 | |
| 56 private: | |
| 57 GrAllocPool fPool; | |
| 58 }; | |
| 59 | |
| 60 #endif |
