diff options
Diffstat (limited to 'apps/plugins/mikmod/mmalloc.c')
| -rw-r--r-- | apps/plugins/mikmod/mmalloc.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/apps/plugins/mikmod/mmalloc.c b/apps/plugins/mikmod/mmalloc.c new file mode 100644 index 0000000..7d505df --- /dev/null +++ b/apps/plugins/mikmod/mmalloc.c @@ -0,0 +1,179 @@ +/* MikMod sound library + (c) 1998, 1999 Miodrag Vallat and others - see file AUTHORS for + complete list. + + This library is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of + the License, or (at your option) any later version. + + This program 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 + GNU Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. +*/ + +/*============================================================================== + + $Id: mmalloc.c,v 1.3 2007/12/03 20:42:58 denis111 Exp $ + + Dynamic memory routines + +==============================================================================*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "mikmod_internals.h" + +#define ALIGN_STRIDE 16 + +static void * align_pointer(char *ptr, size_t stride) +{ + char *pptr = ptr + sizeof(void*); + char *fptr; + size_t err = ((size_t)pptr)&(stride-1); + if (err) + fptr = pptr + (stride - err); + else + fptr = pptr; + *(size_t*)(fptr - sizeof(void*)) = (size_t)ptr; + return fptr; +} + +static void *get_pointer(void *data) +{ + unsigned char *_pptr = (unsigned char*)data - sizeof(void*); + size_t _ptr = *(size_t*)_pptr; + return (void*)_ptr; +} + + +void* MikMod_realloc(void *data, size_t size) +{ + return realloc(data, size); + +#if 0 + if (data) + { +#if defined __MACH__ + void *d = realloc(data, size); + if (d) + { + return d; + } + return 0; +#elif (defined _WIN32 || defined _WIN64) && !defined(_WIN32_WCE) + return _aligned_realloc(data, size, ALIGN_STRIDE); +#else + unsigned char *newPtr = (unsigned char *)realloc(get_pointer(data), size + ALIGN_STRIDE + sizeof(void*)); + return align_pointer(newPtr, ALIGN_STRIDE); +#endif + } + return MikMod_malloc(size); +#endif +} + + +/* Same as malloc, but sets error variable _mm_error when fails. Returns a 16-byte aligned pointer */ +void* MikMod_malloc(size_t size) +{ + void *d; + if(!(d=calloc(1,size))) { + _mm_errno = MMERR_OUT_OF_MEMORY; + if(_mm_errorhandler) _mm_errorhandler(); + } + return d; + +#if 0 +#if defined __MACH__ + void *d = calloc(1, size); + if (d) + { + return d; + } + return 0; +#elif (defined _WIN32 || defined _WIN64) && !defined(_WIN32_WCE) + void * d = _aligned_malloc(size, ALIGN_STRIDE); + if (d) + { + ZeroMemory(d, size); + return d; + } + return 0; +#else + void *d = calloc(1, size + ALIGN_STRIDE + sizeof(void*)); + + if(!d) { + _mm_errno = MMERR_OUT_OF_MEMORY; + if(_mm_errorhandler) _mm_errorhandler(); + } + return align_pointer(d, ALIGN_STRIDE); +#endif +#endif +} + +/* Same as calloc, but sets error variable _mm_error when fails */ +void* MikMod_calloc(size_t nitems,size_t size) +{ + void *d; + + if(!(d=calloc(nitems,size))) { + _mm_errno = MMERR_OUT_OF_MEMORY; + if(_mm_errorhandler) _mm_errorhandler(); + } + return d; + +#if 0 +#if defined __MACH__ + void *d = calloc(nitems, size); + if (d) + { + return d; + } + return 0; +#elif (defined _WIN32 || defined _WIN64) && !defined(_WIN32_WCE) + void * d = _aligned_malloc(size * nitems, ALIGN_STRIDE); + if (d) + { + ZeroMemory(d, size * nitems); + return d; + } + return 0; +#else + void *d = calloc(nitems, size + ALIGN_STRIDE + sizeof(void*)); + + if(!d) { + _mm_errno = MMERR_OUT_OF_MEMORY; + if(_mm_errorhandler) _mm_errorhandler(); + } + return align_pointer(d, ALIGN_STRIDE); +#endif +#endif +} + +void MikMod_free(void *data) +{ + free(data); + +#if 0 + if (data) + { +#if defined __MACH__ + free(data); +#elif (defined _WIN32 || defined _WIN64) && !defined(_WIN32_WCE) + _aligned_free(data); +#else + free(get_pointer(data)); +#endif + } +#endif +} + +/* ex:set ts=4: */ |