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/*
Based on the wiki viewer mallocer
Copyright (C) 2005 Dave Chapman
@ Modified to decompress memory buffer by gama
*/
#include "mallocer.h"
#include "codeclib.h"
static unsigned char* mallocbuffer[MEMPOOL_MAX];
static long memory_ptr[MEMPOOL_MAX];
static size_t buffersize[MEMPOOL_MAX];
int wpw_init_mempool(unsigned char mempool)
{
memory_ptr[mempool] = 0;
mallocbuffer[mempool] = (unsigned char *)ci->codec_get_buffer(&buffersize[mempool]);
// memset(mallocbuf[mempool], 0, bufsize[mempool]);
return 0;
}
int wpw_init_mempool_pdm(unsigned char mempool,
unsigned char* mem,long memsize)
{
memory_ptr[mempool] = 0;
mallocbuffer[mempool] = mem;
buffersize[mempool]=memsize;
return 0;
}
void wpw_reset_mempool(unsigned char mempool)
{
memory_ptr[mempool]=0;
}
void wpw_destroy_mempool(unsigned char mempool)
{
memory_ptr[mempool] = 0;
mallocbuffer[mempool] =0;
buffersize[mempool]=0;
}
long wpw_available(unsigned char mempool)
{
return buffersize[mempool]-memory_ptr[mempool];
}
void* wpw_malloc(unsigned char mempool,size_t size)
{
void* x;
if (memory_ptr[mempool] + size > buffersize[mempool] )
return NULL;
x=&mallocbuffer[mempool][memory_ptr[mempool]];
memory_ptr[mempool]+=(size+3)&~3; /* Keep memory 32-bit aligned */
return(x);
}
void* wpw_calloc(unsigned char mempool,size_t nmemb, size_t size)
{
void* x;
x = wpw_malloc(mempool,nmemb*size);
if (x == NULL)
return NULL;
memset(x,0,nmemb*size);
return(x);
}
void wpw_free(unsigned char mempool,void* ptr)
{
(void)ptr;
(void)mempool;
}
void* wpw_realloc(unsigned char mempool,void* ptr, size_t size)
{
void* x;
(void)ptr;
x = wpw_malloc(mempool,size);
return(x);
}
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