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Diffstat (limited to 'thirdparty/bullet/Bullet3Common/b3PoolAllocator.h')
-rw-r--r-- | thirdparty/bullet/Bullet3Common/b3PoolAllocator.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/thirdparty/bullet/Bullet3Common/b3PoolAllocator.h b/thirdparty/bullet/Bullet3Common/b3PoolAllocator.h deleted file mode 100644 index ed56bc627d..0000000000 --- a/thirdparty/bullet/Bullet3Common/b3PoolAllocator.h +++ /dev/null @@ -1,121 +0,0 @@ -/* -Copyright (c) 2003-2013 Gino van den Bergen / Erwin Coumans http://bulletphysics.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 _BT_POOL_ALLOCATOR_H -#define _BT_POOL_ALLOCATOR_H - -#include "b3Scalar.h" -#include "b3AlignedAllocator.h" - -///The b3PoolAllocator class allows to efficiently allocate a large pool of objects, instead of dynamically allocating them separately. -class b3PoolAllocator -{ - int m_elemSize; - int m_maxElements; - int m_freeCount; - void* m_firstFree; - unsigned char* m_pool; - -public: - b3PoolAllocator(int elemSize, int maxElements) - : m_elemSize(elemSize), - m_maxElements(maxElements) - { - m_pool = (unsigned char*)b3AlignedAlloc(static_cast<unsigned int>(m_elemSize * m_maxElements), 16); - - unsigned char* p = m_pool; - m_firstFree = p; - m_freeCount = m_maxElements; - int count = m_maxElements; - while (--count) - { - *(void**)p = (p + m_elemSize); - p += m_elemSize; - } - *(void**)p = 0; - } - - ~b3PoolAllocator() - { - b3AlignedFree(m_pool); - } - - int getFreeCount() const - { - return m_freeCount; - } - - int getUsedCount() const - { - return m_maxElements - m_freeCount; - } - - int getMaxCount() const - { - return m_maxElements; - } - - void* allocate(int size) - { - // release mode fix - (void)size; - b3Assert(!size || size <= m_elemSize); - b3Assert(m_freeCount > 0); - void* result = m_firstFree; - m_firstFree = *(void**)m_firstFree; - --m_freeCount; - return result; - } - - bool validPtr(void* ptr) - { - if (ptr) - { - if (((unsigned char*)ptr >= m_pool && (unsigned char*)ptr < m_pool + m_maxElements * m_elemSize)) - { - return true; - } - } - return false; - } - - void freeMemory(void* ptr) - { - if (ptr) - { - b3Assert((unsigned char*)ptr >= m_pool && (unsigned char*)ptr < m_pool + m_maxElements * m_elemSize); - - *(void**)ptr = m_firstFree; - m_firstFree = ptr; - ++m_freeCount; - } - } - - int getElementSize() const - { - return m_elemSize; - } - - unsigned char* getPoolAddress() - { - return m_pool; - } - - const unsigned char* getPoolAddress() const - { - return m_pool; - } -}; - -#endif //_BT_POOL_ALLOCATOR_H |