1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/GrAllocPool.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,60 @@
1.4 +/*
1.5 + * Copyright 2010 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef GrAllocPool_DEFINED
1.12 +#define GrAllocPool_DEFINED
1.13 +
1.14 +#include "SkTypes.h"
1.15 +
1.16 +class GrAllocPool : public SkNoncopyable {
1.17 +public:
1.18 + GrAllocPool(size_t blockSize = 0);
1.19 + ~GrAllocPool();
1.20 +
1.21 + /**
1.22 + * Frees all blocks that have been allocated with alloc().
1.23 + */
1.24 + void reset();
1.25 +
1.26 + /**
1.27 + * Returns a block of memory bytes size big. This address must not be
1.28 + * passed to realloc/free/delete or any other function that assumes the
1.29 + * address was allocated by malloc or new (because it hasn't).
1.30 + */
1.31 + void* alloc(size_t bytes);
1.32 +
1.33 + /**
1.34 + * Releases the most recently allocated bytes back to allocpool.
1.35 + */
1.36 + void release(size_t bytes);
1.37 +
1.38 +private:
1.39 + struct Block;
1.40 +
1.41 + Block* fBlock;
1.42 + size_t fMinBlockSize;
1.43 +
1.44 +#ifdef SK_DEBUG
1.45 + int fBlocksAllocated;
1.46 + void validate() const;
1.47 +#else
1.48 + void validate() const {}
1.49 +#endif
1.50 +};
1.51 +
1.52 +template <typename T> class GrTAllocPool {
1.53 +public:
1.54 + GrTAllocPool(int count) : fPool(count * sizeof(T)) {}
1.55 +
1.56 + void reset() { fPool.reset(); }
1.57 + T* alloc() { return (T*)fPool.alloc(sizeof(T)); }
1.58 +
1.59 +private:
1.60 + GrAllocPool fPool;
1.61 +};
1.62 +
1.63 +#endif
