1 #ifndef GIM_MEMORY_H_INCLUDED 2 #define GIM_MEMORY_H_INCLUDED 3 /*! \file gim_memory.h 4 \author Francisco Leon Najera 5 */ 6 /* 7 ----------------------------------------------------------------------------- 8 This source file is part of GIMPACT Library. 9 10 For the latest info, see http://gimpact.sourceforge.net/ 11 12 Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371. 13 email: projectileman (at) yahoo.com 14 15 This library is free software; you can redistribute it and/or 16 modify it under the terms of EITHER: 17 (1) The GNU Lesser General Public License as published by the Free 18 Software Foundation; either version 2.1 of the License, or (at 19 your option) any later version. The text of the GNU Lesser 20 General Public License is included with this library in the 21 file GIMPACT-LICENSE-LGPL.TXT. 22 (2) The BSD-style license that is included with this library in 23 the file GIMPACT-LICENSE-BSD.TXT. 24 (3) The zlib/libpng license that is included with this library in 25 the file GIMPACT-LICENSE-ZLIB.TXT. 26 27 This library is distributed in the hope that it will be useful, 28 but WITHOUT ANY WARRANTY; without even the implied warranty of 29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files 30 GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details. 31 32 ----------------------------------------------------------------------------- 33 */ 34 35 36 #include "gim_math.h" 37 #include <string.h> 38 39 #ifdef PREFETCH 40 #include <xmmintrin.h> // for prefetch 41 #define pfval 64 42 #define pfval2 128 43 //! Prefetch 64 44 #define pf(_x,_i) _mm_prefetch((void *)(_x + _i + pfval), 0) 45 //! Prefetch 128 46 #define pf2(_x,_i) _mm_prefetch((void *)(_x + _i + pfval2), 0) 47 #else 48 //! Prefetch 64 49 #define pf(_x,_i) 50 //! Prefetch 128 51 #define pf2(_x,_i) 52 #endif 53 54 55 ///Functions for manip packed arrays of numbers 56 #define GIM_COPY_ARRAYS(dest_array,source_array,element_count)\ 57 {\ 58 for (GUINT _i_=0;_i_<element_count ;++_i_)\ 59 {\ 60 dest_array[_i_] = source_array[_i_];\ 61 }\ 62 }\ 63 64 #define GIM_COPY_ARRAYS_1(dest_array,source_array,element_count,copy_macro)\ 65 {\ 66 for (GUINT _i_=0;_i_<element_count ;++_i_)\ 67 {\ 68 copy_macro(dest_array[_i_],source_array[_i_]);\ 69 }\ 70 }\ 71 72 73 #define GIM_ZERO_ARRAY(array,element_count)\ 74 {\ 75 for (GUINT _i_=0;_i_<element_count ;++_i_)\ 76 {\ 77 array[_i_] = 0;\ 78 }\ 79 }\ 80 81 #define GIM_CONSTANT_ARRAY(array,element_count,constant)\ 82 {\ 83 for (GUINT _i_=0;_i_<element_count ;++_i_)\ 84 {\ 85 array[_i_] = constant;\ 86 }\ 87 }\ 88 89 90 ///Function prototypes to allocate and free memory. 91 typedef void * gim_alloc_function (size_t size); 92 typedef void * gim_alloca_function (size_t size);//Allocs on the heap 93 typedef void * gim_realloc_function (void *ptr, size_t oldsize, size_t newsize); 94 typedef void gim_free_function (void *ptr); 95 96 97 ///Memory Function Handlers 98 ///set new memory management functions. if fn is 0, the default handlers are used. 99 void gim_set_alloc_handler (gim_alloc_function *fn); 100 void gim_set_alloca_handler (gim_alloca_function *fn); 101 void gim_set_realloc_handler (gim_realloc_function *fn); 102 void gim_set_free_handler (gim_free_function *fn); 103 104 105 ///get current memory management functions. 106 gim_alloc_function *gim_get_alloc_handler (void); 107 gim_alloca_function *gim_get_alloca_handler(void); 108 gim_realloc_function *gim_get_realloc_handler (void); 109 gim_free_function *gim_get_free_handler (void); 110 111 112 ///Standar Memory functions 113 void * gim_alloc(size_t size); 114 void * gim_alloca(size_t size); 115 void * gim_realloc(void *ptr, size_t oldsize, size_t newsize); 116 void gim_free(void *ptr); 117 118 119 120 #if defined (_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__) 121 #define GIM_SIMD_MEMORY 1 122 #endif 123 124 //! SIMD POINTER INTEGER 125 #define SIMD_T GUINT64 126 //! SIMD INTEGER SIZE 127 #define SIMD_T_SIZE sizeof(SIMD_T) 128 129 130 inline void gim_simd_memcpy(void * dst, const void * src, size_t copysize) 131 { 132 #ifdef GIM_SIMD_MEMORY 133 /* 134 //'long long int' is incompatible with visual studio 6... 135 //copy words 136 SIMD_T * ui_src_ptr = (SIMD_T *)src; 137 SIMD_T * ui_dst_ptr = (SIMD_T *)dst; 138 while(copysize>=SIMD_T_SIZE) 139 { 140 *(ui_dst_ptr++) = *(ui_src_ptr++); 141 copysize-=SIMD_T_SIZE; 142 } 143 if(copysize==0) return; 144 */ 145 146 char * c_src_ptr = (char *)src; 147 char * c_dst_ptr = (char *)dst; 148 while(copysize>0) 149 { 150 *(c_dst_ptr++) = *(c_src_ptr++); 151 copysize--; 152 } 153 return; 154 #else 155 memcpy(dst,src,copysize); 156 #endif 157 } 158 159 160 161 template<class T> 162 inline void gim_swap_elements(T* _array,size_t _i,size_t _j) 163 { 164 T _e_tmp_ = _array[_i]; 165 _array[_i] = _array[_j]; 166 _array[_j] = _e_tmp_; 167 } 168 169 170 template<class T> 171 inline void gim_swap_elements_memcpy(T* _array,size_t _i,size_t _j) 172 { 173 char _e_tmp_[sizeof(T)]; 174 gim_simd_memcpy(_e_tmp_,&_array[_i],sizeof(T)); 175 gim_simd_memcpy(&_array[_i],&_array[_j],sizeof(T)); 176 gim_simd_memcpy(&_array[_j],_e_tmp_,sizeof(T)); 177 } 178 179 template <int SIZE> 180 inline void gim_swap_elements_ptr(char * _array,size_t _i,size_t _j) 181 { 182 char _e_tmp_[SIZE]; 183 _i*=SIZE; 184 _j*=SIZE; 185 gim_simd_memcpy(_e_tmp_,_array+_i,SIZE); 186 gim_simd_memcpy(_array+_i,_array+_j,SIZE); 187 gim_simd_memcpy(_array+_j,_e_tmp_,SIZE); 188 } 189 190 #endif // GIM_MEMORY_H_INCLUDED 191
