1 /************************************************************************** 2 * 3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 29 /* 30 * Memory functions 31 */ 32 33 34 #ifndef U_MEMORY_H 35 #define U_MEMORY_H 36 37 38 #include "util/u_pointer.h" 39 #include "util/u_debug.h" 40 #include "os/os_memory.h" 41 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 48 #define MALLOC(_size) os_malloc(_size) 49 50 #define CALLOC(_count, _size) os_calloc(_count, _size) 51 52 #define FREE(_ptr ) os_free(_ptr) 53 54 #define REALLOC(_ptr, _old_size, _size) os_realloc(_ptr, _old_size, _size) 55 56 #define MALLOC_STRUCT(T) (struct T *) MALLOC(sizeof(struct T)) 57 58 #define CALLOC_STRUCT(T) (struct T *) CALLOC(1, sizeof(struct T)) 59 60 #define CALLOC_VARIANT_LENGTH_STRUCT(T,more_size) ((struct T *) CALLOC(1, sizeof(struct T) + more_size)) 61 62 63 #define align_malloc(_size, _alignment) os_malloc_aligned(_size, _alignment) 64 #define align_free(_ptr) os_free_aligned(_ptr) 65 66 67 /** 68 * Duplicate a block of memory. 69 */ 70 static INLINE void * 71 mem_dup(const void *src, uint size) 72 { 73 void *dup = MALLOC(size); 74 if (dup) 75 memcpy(dup, src, size); 76 return dup; 77 } 78 79 80 /** 81 * Number of elements in an array. 82 */ 83 #ifndef Elements 84 #define Elements(x) (sizeof(x)/sizeof((x)[0])) 85 #endif 86 87 88 /** 89 * Offset of a field in a struct, in bytes. 90 */ 91 #define Offset(TYPE, MEMBER) ((uintptr_t)&(((TYPE *)NULL)->MEMBER)) 92 93 94 95 #ifdef __cplusplus 96 } 97 #endif 98 99 100 #endif /* U_MEMORY_H */ 101