d67c29302a
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15525 a1c6a512-1295-4272-9138-f99709370657
75 lines
1.2 KiB
C
75 lines
1.2 KiB
C
#include <os_types.h>
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static unsigned char *mallocbuf;
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static size_t bufsize, tmp_ptr, mem_ptr;
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void ogg_malloc_init(void)
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{
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mallocbuf = ci->get_codec_memory(&bufsize);
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tmp_ptr = bufsize & ~3;
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mem_ptr = 0;
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}
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void *ogg_malloc(size_t size)
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{
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void* x;
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size = (size + 3) & ~3;
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if (mem_ptr + size > tmp_ptr)
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return NULL;
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x = &mallocbuf[mem_ptr];
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mem_ptr += size; /* Keep memory 32-bit aligned */
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return x;
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}
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void *ogg_tmpmalloc(size_t size)
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{
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size = (size + 3) & ~3;
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if (mem_ptr + size > tmp_ptr)
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return NULL;
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tmp_ptr -= size;
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return &mallocbuf[tmp_ptr];
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}
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void *ogg_calloc(size_t nmemb, size_t size)
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{
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void *x;
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x = ogg_malloc(nmemb * size);
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if (x == NULL)
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return NULL;
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ci->memset(x, 0, nmemb * size);
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return x;
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}
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void *ogg_tmpcalloc(size_t nmemb, size_t size)
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{
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void *x;
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x = ogg_tmpmalloc(nmemb * size);
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if (x == NULL)
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return NULL;
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ci->memset(x, 0, nmemb * size);
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return x;
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}
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void *ogg_realloc(void *ptr, size_t size)
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{
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void *x;
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(void)ptr;
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x = ogg_malloc(size);
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return x;
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}
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long ogg_tmpmalloc_pos(void)
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{
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return tmp_ptr;
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}
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void ogg_tmpmalloc_free(long pos)
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{
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tmp_ptr = pos;
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}
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