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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Dave Chapman
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* "helper functions" common to all codecs */
#include "codecs.h"
#include "dsp.h"
#include "codeclib.h"
#include "id3.h"
struct codec_api *local_rb;
int mem_ptr;
int bufsize;
unsigned char* mp3buf; // The actual MP3 buffer from Rockbox
unsigned char* mallocbuf; // 512K from the start of MP3 buffer
unsigned char* filebuf; // The rest of the MP3 buffer
int codec_init(struct codec_api* rb)
{
local_rb = rb;
mem_ptr = 0;
mallocbuf = (unsigned char *)rb->get_codec_memory((long *)&bufsize);
return 0;
}
void codec_set_replaygain(struct mp3entry* id3)
{
local_rb->configure(DSP_SET_TRACK_GAIN, (long *) id3->track_gain);
local_rb->configure(DSP_SET_ALBUM_GAIN, (long *) id3->album_gain);
local_rb->configure(DSP_SET_TRACK_PEAK, (long *) id3->track_peak);
local_rb->configure(DSP_SET_ALBUM_PEAK, (long *) id3->album_peak);
}
/* Various "helper functions" common to all the xxx2wav decoder plugins */
void* codec_malloc(size_t size)
{
void* x;
if (mem_ptr + (int)size > bufsize)
return NULL;
x=&mallocbuf[mem_ptr];
mem_ptr+=(size+3)&~3; /* Keep memory 32-bit aligned */
return(x);
}
void* codec_calloc(size_t nmemb, size_t size)
{
void* x;
x = codec_malloc(nmemb*size);
if (x == NULL)
return NULL;
local_rb->memset(x,0,nmemb*size);
return(x);
}
void codec_free(void* ptr) {
(void)ptr;
}
void* codec_realloc(void* ptr, size_t size)
{
void* x;
(void)ptr;
x = codec_malloc(size);
return(x);
}
size_t strlen(const char *s)
{
return(local_rb->strlen(s));
}
char *strcpy(char *dest, const char *src)
{
return(local_rb->strcpy(dest,src));
}
char *strcat(char *dest, const char *src)
{
return(local_rb->strcat(dest,src));
}
int strcmp(const char *s1, const char *s2)
{
return(local_rb->strcmp(s1,s2));
}
int strncasecmp(const char *s1, const char *s2, size_t n)
{
return(local_rb->strncasecmp(s1,s2,n));
}
void *memcpy(void *dest, const void *src, size_t n)
{
return(local_rb->memcpy(dest,src,n));
}
void *memset(void *s, int c, size_t n)
{
return(local_rb->memset(s,c,n));
}
int memcmp(const void *s1, const void *s2, size_t n)
{
return(local_rb->memcmp(s1,s2,n));
}
void* memchr(const void *s, int c, size_t n)
{
return(local_rb->memchr(s,c,n));
}
void* memmove(const void *s1, const void *s2, size_t n)
{
char* dest=(char*)s1;
char* src=(char*)s2;
size_t i;
for (i=0;i<n;i++)
dest[i]=src[i];
return(dest);
}
void qsort(void *base, size_t nmemb, size_t size,
int(*compar)(const void *, const void *))
{
local_rb->qsort(base,nmemb,size,compar);
}
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