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Diffstat (limited to 'thirdparty/bullet/Bullet3Common/b3AlignedAllocator.cpp')
| -rw-r--r-- | thirdparty/bullet/Bullet3Common/b3AlignedAllocator.cpp | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/thirdparty/bullet/Bullet3Common/b3AlignedAllocator.cpp b/thirdparty/bullet/Bullet3Common/b3AlignedAllocator.cpp new file mode 100644 index 0000000000..b98e2b4d33 --- /dev/null +++ b/thirdparty/bullet/Bullet3Common/b3AlignedAllocator.cpp @@ -0,0 +1,181 @@ +/* +Bullet Continuous Collision Detection and Physics Library +Copyright (c) 2003-2013 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. +*/ + +#include "b3AlignedAllocator.h" + +int b3g_numAlignedAllocs = 0; +int b3g_numAlignedFree = 0; +int b3g_totalBytesAlignedAllocs = 0;//detect memory leaks + +static void *b3AllocDefault(size_t size) +{ + return malloc(size); +} + +static void b3FreeDefault(void *ptr) +{ + free(ptr); +} + +static b3AllocFunc* b3s_allocFunc = b3AllocDefault; +static b3FreeFunc* b3s_freeFunc = b3FreeDefault; + + + +#if defined (B3_HAS_ALIGNED_ALLOCATOR) +#include <malloc.h> +static void *b3AlignedAllocDefault(size_t size, int alignment) +{ + return _aligned_malloc(size, (size_t)alignment); +} + +static void b3AlignedFreeDefault(void *ptr) +{ + _aligned_free(ptr); +} +#elif defined(__CELLOS_LV2__) +#include <stdlib.h> + +static inline void *b3AlignedAllocDefault(size_t size, int alignment) +{ + return memalign(alignment, size); +} + +static inline void b3AlignedFreeDefault(void *ptr) +{ + free(ptr); +} +#else + + + + + +static inline void *b3AlignedAllocDefault(size_t size, int alignment) +{ + void *ret; + char *real; + real = (char *)b3s_allocFunc(size + sizeof(void *) + (alignment-1)); + if (real) { + ret = b3AlignPointer(real + sizeof(void *),alignment); + *((void **)(ret)-1) = (void *)(real); + } else { + ret = (void *)(real); + } + return (ret); +} + +static inline void b3AlignedFreeDefault(void *ptr) +{ + void* real; + + if (ptr) { + real = *((void **)(ptr)-1); + b3s_freeFunc(real); + } +} +#endif + + +static b3AlignedAllocFunc* b3s_alignedAllocFunc = b3AlignedAllocDefault; +static b3AlignedFreeFunc* b3s_alignedFreeFunc = b3AlignedFreeDefault; + +void b3AlignedAllocSetCustomAligned(b3AlignedAllocFunc *allocFunc, b3AlignedFreeFunc *freeFunc) +{ + b3s_alignedAllocFunc = allocFunc ? allocFunc : b3AlignedAllocDefault; + b3s_alignedFreeFunc = freeFunc ? freeFunc : b3AlignedFreeDefault; +} + +void b3AlignedAllocSetCustom(b3AllocFunc *allocFunc, b3FreeFunc *freeFunc) +{ + b3s_allocFunc = allocFunc ? allocFunc : b3AllocDefault; + b3s_freeFunc = freeFunc ? freeFunc : b3FreeDefault; +} + +#ifdef B3_DEBUG_MEMORY_ALLOCATIONS +//this generic allocator provides the total allocated number of bytes +#include <stdio.h> + +void* b3AlignedAllocInternal (size_t size, int alignment,int line,char* filename) +{ + void *ret; + char *real; + + b3g_totalBytesAlignedAllocs += size; + b3g_numAlignedAllocs++; + + + real = (char *)b3s_allocFunc(size + 2*sizeof(void *) + (alignment-1)); + if (real) { + ret = (void*) b3AlignPointer(real + 2*sizeof(void *), alignment); + *((void **)(ret)-1) = (void *)(real); + *((int*)(ret)-2) = size; + + } else { + ret = (void *)(real);//?? + } + + b3Printf("allocation#%d at address %x, from %s,line %d, size %d\n",b3g_numAlignedAllocs,real, filename,line,size); + + int* ptr = (int*)ret; + *ptr = 12; + return (ret); +} + +void b3AlignedFreeInternal (void* ptr,int line,char* filename) +{ + + void* real; + b3g_numAlignedFree++; + + if (ptr) { + real = *((void **)(ptr)-1); + int size = *((int*)(ptr)-2); + b3g_totalBytesAlignedAllocs -= size; + + b3Printf("free #%d at address %x, from %s,line %d, size %d\n",b3g_numAlignedFree,real, filename,line,size); + + b3s_freeFunc(real); + } else + { + b3Printf("NULL ptr\n"); + } +} + +#else //B3_DEBUG_MEMORY_ALLOCATIONS + +void* b3AlignedAllocInternal (size_t size, int alignment) +{ + b3g_numAlignedAllocs++; + void* ptr; + ptr = b3s_alignedAllocFunc(size, alignment); +// b3Printf("b3AlignedAllocInternal %d, %x\n",size,ptr); + return ptr; +} + +void b3AlignedFreeInternal (void* ptr) +{ + if (!ptr) + { + return; + } + + b3g_numAlignedFree++; +// b3Printf("b3AlignedFreeInternal %x\n",ptr); + b3s_alignedFreeFunc(ptr); +} + +#endif //B3_DEBUG_MEMORY_ALLOCATIONS + |