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author | chai <chaifix@163.com> | 2019-06-06 00:11:18 +0800 |
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committer | chai <chaifix@163.com> | 2019-06-06 00:11:18 +0800 |
commit | 88b882ed0b432c6aff2063213e2f793a36dd25f7 (patch) | |
tree | 5fe5d5334050e1a1146aa63e61e88aa2f5170727 /source/3rd-party/Box2D/Common/b2BlockAllocator.h | |
parent | f6c0498c9728a286c13980ed3b60763d02e1b3a0 (diff) |
*misc
Diffstat (limited to 'source/3rd-party/Box2D/Common/b2BlockAllocator.h')
-rw-r--r-- | source/3rd-party/Box2D/Common/b2BlockAllocator.h | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/source/3rd-party/Box2D/Common/b2BlockAllocator.h b/source/3rd-party/Box2D/Common/b2BlockAllocator.h deleted file mode 100644 index 8dfa254..0000000 --- a/source/3rd-party/Box2D/Common/b2BlockAllocator.h +++ /dev/null @@ -1,62 +0,0 @@ -/* -* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org -* -* This software is provided 'as-is', without any express or implied -* warranty. In no event will the authors be held liable for any damages -* arising from the use of this software. -* Permission is granted to anyone to use this software for any purpose, -* including commercial applications, and to alter it and redistribute it -* freely, subject to the following restrictions: -* 1. The origin of this software must not be misrepresented; you must not -* claim that you wrote the original software. If you use this software -* in a product, an acknowledgment in the product documentation would be -* appreciated but is not required. -* 2. Altered source versions must be plainly marked as such, and must not be -* misrepresented as being the original software. -* 3. This notice may not be removed or altered from any source distribution. -*/ - -#ifndef B2_BLOCK_ALLOCATOR_H -#define B2_BLOCK_ALLOCATOR_H - -#include "Box2D/Common/b2Settings.h" - -const int32 b2_chunkSize = 16 * 1024; -const int32 b2_maxBlockSize = 640; -const int32 b2_blockSizes = 14; -const int32 b2_chunkArrayIncrement = 128; - -struct b2Block; -struct b2Chunk; - -/// This is a small object allocator used for allocating small -/// objects that persist for more than one time step. -/// See: http://www.codeproject.com/useritems/Small_Block_Allocator.asp -class b2BlockAllocator -{ -public: - b2BlockAllocator(); - ~b2BlockAllocator(); - - /// Allocate memory. This will use b2Alloc if the size is larger than b2_maxBlockSize. - void* Allocate(int32 size); - - /// Free memory. This will use b2Free if the size is larger than b2_maxBlockSize. - void Free(void* p, int32 size); - - void Clear(); - -private: - - b2Chunk* m_chunks; - int32 m_chunkCount; - int32 m_chunkSpace; - - b2Block* m_freeLists[b2_blockSizes]; - - static int32 s_blockSizes[b2_blockSizes]; - static uint8 s_blockSizeLookup[b2_maxBlockSize + 1]; - static bool s_blockSizeLookupInitialized; -}; - -#endif |