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Win32 doesn't have memalign ...

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This commit is contained in:
Themaister 2012-02-25 22:37:40 +01:00
parent c20df730e3
commit b4fe5198b3
1 changed files with 22 additions and 3 deletions
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25
audio/sinc.c
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@ -22,7 +22,6 @@
#include <math.h> #include <math.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h> #include <stdlib.h>
#include <malloc.h>
#include <string.h> #include <string.h>
#ifndef RESAMPLER_TEST #ifndef RESAMPLER_TEST
@ -122,9 +121,29 @@ static void init_sinc_table(ssnes_resampler_t *resamp)
} }
} }
// No memalign() for us on Win32 ...
static void *aligned_alloc(size_t boundary, size_t size)
{
void *ptr = malloc(boundary + size + sizeof(uintptr_t));
if (!ptr)
return NULL;
uintptr_t addr = ((uintptr_t)ptr + sizeof(uintptr_t) + boundary) & ~(boundary - 1);
void **place = (void**)addr;
place[-1] = ptr;
return (void*)addr;
}
static void aligned_free(void *ptr)
{
void **p = (void**)ptr;
free(p[-1]);
}
ssnes_resampler_t *resampler_new(void) ssnes_resampler_t *resampler_new(void)
{ {
ssnes_resampler_t *re = (ssnes_resampler_t*)memalign(16, sizeof(*re)); ssnes_resampler_t *re = (ssnes_resampler_t*)aligned_alloc(16, sizeof(*re));
if (!re) if (!re)
return NULL; return NULL;
@ -255,6 +274,6 @@ void resampler_process(ssnes_resampler_t *re, struct resampler_data *data)
void resampler_free(ssnes_resampler_t *re) void resampler_free(ssnes_resampler_t *re)
{ {
free(re); aligned_free(re);
} }