f40bfc9267
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
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/*
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Based on the wiki viewer mallocer
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Copyright (C) 2005 Dave Chapman
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@ Modified to decompress memory buffer by gama
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*/
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#include "mallocer.h"
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#include "codeclib.h"
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unsigned char* mallocbuffer[MEMPOOL_MAX];
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long memory_ptr[MEMPOOL_MAX];
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size_t buffersize[MEMPOOL_MAX];
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int wpw_init_mempool(unsigned char mempool)
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{
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memory_ptr[mempool] = 0;
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mallocbuffer[mempool] = (unsigned char *)ci->codec_get_buffer(&buffersize[mempool]);
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// memset(mallocbuf[mempool], 0, bufsize[mempool]);
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return 0;
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}
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int wpw_init_mempool_pdm(unsigned char mempool,
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unsigned char* mem,long memsize)
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{
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memory_ptr[mempool] = 0;
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mallocbuffer[mempool] = mem;
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buffersize[mempool]=memsize;
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return 0;
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}
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void wpw_reset_mempool(unsigned char mempool)
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{
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memory_ptr[mempool]=0;
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}
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void wpw_destroy_mempool(unsigned char mempool)
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{
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memory_ptr[mempool] = 0;
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mallocbuffer[mempool] =0;
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buffersize[mempool]=0;
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}
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long wpw_available(unsigned char mempool)
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{
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return buffersize[mempool]-memory_ptr[mempool];
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}
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void* wpw_malloc(unsigned char mempool,size_t size)
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{
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void* x;
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if (memory_ptr[mempool] + size > buffersize[mempool] )
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return NULL;
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x=&mallocbuffer[mempool][memory_ptr[mempool]];
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memory_ptr[mempool]+=(size+3)&~3; /* Keep memory 32-bit aligned */
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return(x);
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}
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void* wpw_calloc(unsigned char mempool,size_t nmemb, size_t size)
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{
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void* x;
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x = wpw_malloc(mempool,nmemb*size);
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if (x == NULL)
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return NULL;
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memset(x,0,nmemb*size);
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return(x);
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}
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void wpw_free(unsigned char mempool,void* ptr)
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{
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(void)ptr;
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(void)mempool;
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}
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void* wpw_realloc(unsigned char mempool,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 = wpw_malloc(mempool,size);
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return(x);
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}
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