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Diffstat (limited to 'extern/bullet2/BulletCollision/Gimpact/gim_memory.h')
| -rw-r--r-- | extern/bullet2/BulletCollision/Gimpact/gim_memory.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/extern/bullet2/BulletCollision/Gimpact/gim_memory.h b/extern/bullet2/BulletCollision/Gimpact/gim_memory.h new file mode 100644 index 00000000000..dc687d234bd --- /dev/null +++ b/extern/bullet2/BulletCollision/Gimpact/gim_memory.h @@ -0,0 +1,190 @@ +#ifndef GIM_MEMORY_H_INCLUDED +#define GIM_MEMORY_H_INCLUDED +/*! \file gim_memory.h +\author Francisco Len Nßjera +*/ +/* +----------------------------------------------------------------------------- +This source file is part of GIMPACT Library. + +For the latest info, see http://gimpact.sourceforge.net/ + +Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371. +email: projectileman@yahoo.com + + This library is free software; you can redistribute it and/or + modify it under the terms of EITHER: + (1) The GNU Lesser General Public License as published by the Free + Software Foundation; either version 2.1 of the License, or (at + your option) any later version. The text of the GNU Lesser + General Public License is included with this library in the + file GIMPACT-LICENSE-LGPL.TXT. + (2) The BSD-style license that is included with this library in + the file GIMPACT-LICENSE-BSD.TXT. + (3) The zlib/libpng license that is included with this library in + the file GIMPACT-LICENSE-ZLIB.TXT. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files + GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details. + +----------------------------------------------------------------------------- +*/ + + +#include "gim_math.h" +#include <string.h> + +#ifdef PREFETCH +#include <xmmintrin.h> // for prefetch +#define pfval 64 +#define pfval2 128 +//! Prefetch 64 +#define pf(_x,_i) _mm_prefetch((void *)(_x + _i + pfval), 0) +//! Prefetch 128 +#define pf2(_x,_i) _mm_prefetch((void *)(_x + _i + pfval2), 0) +#else +//! Prefetch 64 +#define pf(_x,_i) +//! Prefetch 128 +#define pf2(_x,_i) +#endif + + +///Functions for manip packed arrays of numbers +#define GIM_COPY_ARRAYS(dest_array,source_array,element_count)\ +{\ + for (GUINT _i_=0;_i_<element_count ;++_i_)\ + {\ + dest_array[_i_] = source_array[_i_];\ + }\ +}\ + +#define GIM_COPY_ARRAYS_1(dest_array,source_array,element_count,copy_macro)\ +{\ + for (GUINT _i_=0;_i_<element_count ;++_i_)\ + {\ + copy_macro(dest_array[_i_],source_array[_i_]);\ + }\ +}\ + + +#define GIM_ZERO_ARRAY(array,element_count)\ +{\ + for (GUINT _i_=0;_i_<element_count ;++_i_)\ + {\ + array[_i_] = 0;\ + }\ +}\ + +#define GIM_CONSTANT_ARRAY(array,element_count,constant)\ +{\ + for (GUINT _i_=0;_i_<element_count ;++_i_)\ + {\ + array[_i_] = constant;\ + }\ +}\ + + +///Function prototypes to allocate and free memory. +typedef void * gim_alloc_function (size_t size); +typedef void * gim_alloca_function (size_t size);//Allocs on the heap +typedef void * gim_realloc_function (void *ptr, size_t oldsize, size_t newsize); +typedef void gim_free_function (void *ptr); + + +///Memory Function Handlers +///set new memory management functions. if fn is 0, the default handlers are used. +void gim_set_alloc_handler (gim_alloc_function *fn); +void gim_set_alloca_handler (gim_alloca_function *fn); +void gim_set_realloc_handler (gim_realloc_function *fn); +void gim_set_free_handler (gim_free_function *fn); + + +///get current memory management functions. +gim_alloc_function *gim_get_alloc_handler (void); +gim_alloca_function *gim_get_alloca_handler(void); +gim_realloc_function *gim_get_realloc_handler (void); +gim_free_function *gim_get_free_handler (void); + + +///Standar Memory functions +void * gim_alloc(size_t size); +void * gim_alloca(size_t size); +void * gim_realloc(void *ptr, size_t oldsize, size_t newsize); +void gim_free(void *ptr); + + + +#if defined (_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) + #define GIM_SIMD_MEMORY 1 +#endif + +//! SIMD POINTER INTEGER +#define SIMD_T GUINT64 +//! SIMD INTEGER SIZE +#define SIMD_T_SIZE sizeof(SIMD_T) + + +inline void gim_simd_memcpy(void * dst, const void * src, size_t copysize) +{ +#ifdef GIM_SIMD_MEMORY +/* +//'long long int' is incompatible with visual studio 6... + //copy words + SIMD_T * ui_src_ptr = (SIMD_T *)src; + SIMD_T * ui_dst_ptr = (SIMD_T *)dst; + while(copysize>=SIMD_T_SIZE) + { + *(ui_dst_ptr++) = *(ui_src_ptr++); + copysize-=SIMD_T_SIZE; + } + if(copysize==0) return; +*/ + + char * c_src_ptr = (char *)src; + char * c_dst_ptr = (char *)dst; + while(copysize>0) + { + *(c_dst_ptr++) = *(c_src_ptr++); + copysize--; + } + return; +#else + memcpy(dst,src,copysize); +#endif +} + + + +template<class T> +inline void gim_swap_elements(T* _array,size_t _i,size_t _j) +{ + T _e_tmp_ = _array[_i]; + _array[_i] = _array[_j]; + _array[_j] = _e_tmp_; +} + + +template<class T> +inline void gim_swap_elements_memcpy(T* _array,size_t _i,size_t _j) +{ + char _e_tmp_[sizeof(T)]; + gim_simd_memcpy(_e_tmp_,&_array[_i],sizeof(T)); + gim_simd_memcpy(&_array[_i],&_array[_j],sizeof(T)); + gim_simd_memcpy(&_array[_j],_e_tmp_,sizeof(T)); +} + +template <int SIZE> +inline void gim_swap_elements_ptr(char * _array,size_t _i,size_t _j) +{ + char _e_tmp_[SIZE]; + _i*=SIZE; + _j*=SIZE; + gim_simd_memcpy(_e_tmp_,_array+_i,SIZE); + gim_simd_memcpy(_array+_i,_array+_j,SIZE); + gim_simd_memcpy(_array+_j,_e_tmp_,SIZE); +} + +#endif // GIM_MEMORY_H_INCLUDED |