86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
|
|
/*
|
|
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);
|
|
}
|