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+/*
+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.
+*/
+
+#ifndef B3_ALIGNED_ALLOCATOR
+#define B3_ALIGNED_ALLOCATOR
+
+///we probably replace this with our own aligned memory allocator
+///so we replace _aligned_malloc and _aligned_free with our own
+///that is better portable and more predictable
+
+#include "b3Scalar.h"
+//#define B3_DEBUG_MEMORY_ALLOCATIONS 1
+#ifdef B3_DEBUG_MEMORY_ALLOCATIONS
+
+#define b3AlignedAlloc(a,b) \
+ b3AlignedAllocInternal(a,b,__LINE__,__FILE__)
+
+#define b3AlignedFree(ptr) \
+ b3AlignedFreeInternal(ptr,__LINE__,__FILE__)
+
+void* b3AlignedAllocInternal (size_t size, int alignment,int line,char* filename);
+
+void b3AlignedFreeInternal (void* ptr,int line,char* filename);
+
+#else
+ void* b3AlignedAllocInternal (size_t size, int alignment);
+ void b3AlignedFreeInternal (void* ptr);
+
+ #define b3AlignedAlloc(size,alignment) b3AlignedAllocInternal(size,alignment)
+ #define b3AlignedFree(ptr) b3AlignedFreeInternal(ptr)
+
+#endif
+typedef int btSizeType;
+
+typedef void *(b3AlignedAllocFunc)(size_t size, int alignment);
+typedef void (b3AlignedFreeFunc)(void *memblock);
+typedef void *(b3AllocFunc)(size_t size);
+typedef void (b3FreeFunc)(void *memblock);
+
+///The developer can let all Bullet memory allocations go through a custom memory allocator, using b3AlignedAllocSetCustom
+void b3AlignedAllocSetCustom(b3AllocFunc *allocFunc, b3FreeFunc *freeFunc);
+///If the developer has already an custom aligned allocator, then b3AlignedAllocSetCustomAligned can be used. The default aligned allocator pre-allocates extra memory using the non-aligned allocator, and instruments it.
+void b3AlignedAllocSetCustomAligned(b3AlignedAllocFunc *allocFunc, b3AlignedFreeFunc *freeFunc);
+
+
+///The b3AlignedAllocator is a portable class for aligned memory allocations.
+///Default implementations for unaligned and aligned allocations can be overridden by a custom allocator using b3AlignedAllocSetCustom and b3AlignedAllocSetCustomAligned.
+template < typename T , unsigned Alignment >
+class b3AlignedAllocator {
+
+ typedef b3AlignedAllocator< T , Alignment > self_type;
+
+public:
+
+ //just going down a list:
+ b3AlignedAllocator() {}
+ /*
+ b3AlignedAllocator( const self_type & ) {}
+ */
+
+ template < typename Other >
+ b3AlignedAllocator( const b3AlignedAllocator< Other , Alignment > & ) {}
+
+ typedef const T* const_pointer;
+ typedef const T& const_reference;
+ typedef T* pointer;
+ typedef T& reference;
+ typedef T value_type;
+
+ pointer address ( reference ref ) const { return &ref; }
+ const_pointer address ( const_reference ref ) const { return &ref; }
+ pointer allocate ( btSizeType n , const_pointer * hint = 0 ) {
+ (void)hint;
+ return reinterpret_cast< pointer >(b3AlignedAlloc( sizeof(value_type) * n , Alignment ));
+ }
+ void construct ( pointer ptr , const value_type & value ) { new (ptr) value_type( value ); }
+ void deallocate( pointer ptr ) {
+ b3AlignedFree( reinterpret_cast< void * >( ptr ) );
+ }
+ void destroy ( pointer ptr ) { ptr->~value_type(); }
+
+
+ template < typename O > struct rebind {
+ typedef b3AlignedAllocator< O , Alignment > other;
+ };
+ template < typename O >
+ self_type & operator=( const b3AlignedAllocator< O , Alignment > & ) { return *this; }
+
+ friend bool operator==( const self_type & , const self_type & ) { return true; }
+};
+
+
+
+#endif //B3_ALIGNED_ALLOCATOR
+