apps/codecs/lib/codeclib.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Dave Chapman
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 /* "helper functions" common to all codecs  */
  23
  24 #include <string.h>
  25 #include "codecs.h"
  26 #include "dsp.h"
  27 #include "codeclib.h"
  28 #include "metadata.h"
  29
  30 size_t mem_ptr;
  31 size_t bufsize;
  32 unsigned char* mp3buf;     // The actual MP3 buffer from Rockbox
  33 unsigned char* mallocbuf;  // 512K from the start of MP3 buffer
  34 unsigned char* filebuf;    // The rest of the MP3 buffer
  35
  36 int codec_init(void)
  37 {
  38     mem_ptr = 0;
  39     mallocbuf = (unsigned char *)ci->codec_get_buffer((size_t *)&bufsize);
  40
  41     return 0;
  42 }
  43
  44 void codec_set_replaygain(struct mp3entry* id3)
  45 {
  46     ci->configure(DSP_SET_TRACK_GAIN, id3->track_gain);
  47     ci->configure(DSP_SET_ALBUM_GAIN, id3->album_gain);
  48     ci->configure(DSP_SET_TRACK_PEAK, id3->track_peak);
  49     ci->configure(DSP_SET_ALBUM_PEAK, id3->album_peak);
  50 }
  51
  52 /* Various "helper functions" common to all the xxx2wav decoder plugins  */
  53
  54
  55 void* codec_malloc(size_t size)
  56 {
  57     void* x;
  58
  59     if (mem_ptr + (long)size > bufsize)
  60         return NULL;
  61
  62     x=&mallocbuf[mem_ptr];
  63     mem_ptr+=(size+3)&~3; /* Keep memory 32-bit aligned */
  64
  65     return(x);
  66 }
  67
  68 void* codec_calloc(size_t nmemb, size_t size)
  69 {
  70     void* x;
  71     x = codec_malloc(nmemb*size);
  72     if (x == NULL)
  73         return NULL;
  74     ci->memset(x,0,nmemb*size);
  75     return(x);
  76 }
  77
  78 void codec_free(void* ptr) {
  79     (void)ptr;
  80 }
  81
  82 void* codec_realloc(void* ptr, size_t size)
  83 {
  84     void* x;
  85     (void)ptr;
  86     x = codec_malloc(size);
  87     return(x);
  88 }
  89
  90 size_t strlen(const char *s)
  91 {
  92     return(ci->strlen(s));
  93 }
  94
  95 char *strcpy(char *dest, const char *src)
  96 {
  97     return(ci->strcpy(dest,src));
  98 }
  99
 100 char *strcat(char *dest, const char *src)
 101 {
 102     return(ci->strcat(dest,src));
 103 }
 104
 105 int strcmp(const char *s1, const char *s2)
 106 {
 107     return(ci->strcmp(s1,s2));
 108 }
 109
 110 void *memcpy(void *dest, const void *src, size_t n)
 111 {
 112     return(ci->memcpy(dest,src,n));
 113 }
 114
 115 void *memset(void *s, int c, size_t n)
 116 {
 117     return(ci->memset(s,c,n));
 118 }
 119
 120 int memcmp(const void *s1, const void *s2, size_t n)
 121 {
 122     return(ci->memcmp(s1,s2,n));
 123 }
 124
 125 void* memchr(const void *s, int c, size_t n)
 126 {
 127     return(ci->memchr(s,c,n));
 128 }
 129
 130 void *memmove(void *dest, const void *src, size_t n)
 131 {
 132     return(ci->memmove(dest,src,n));
 133 }
 134
 135 void qsort(void *base, size_t nmemb, size_t size,
 136            int(*compar)(const void *, const void *))
 137 {
 138     ci->qsort(base,nmemb,size,compar);
 139 }
 140
 141 /* From ffmpeg - libavutil/common.h */
 142 const uint8_t bs_log2_tab[256] ICONST_ATTR = {
 143     0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
 144     5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
 145     6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
 146     6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
 147     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
 148     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
 149     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
 150     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
 151 };
 152
 153 const uint8_t bs_clz_tab[256] ICONST_ATTR = {
 154     8,7,6,6,5,5,5,5,4,4,4,4,4,4,4,4,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
 155     2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
 156     1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
 157     1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
 158     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 159     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 160     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 161     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 162 };
 163
 164 #ifdef RB_PROFILE
 165 void __cyg_profile_func_enter(void *this_fn, void *call_site) {
 166 #ifdef CPU_COLDFIRE
 167     (void)call_site;
 168     ci->profile_func_enter(this_fn, __builtin_return_address(1));
 169 #else
 170     ci->profile_func_enter(this_fn, call_site);
 171 #endif
 172 }
 173
 174 void __cyg_profile_func_exit(void *this_fn, void *call_site) {
 175     ci->profile_func_exit(this_fn,call_site);
 176 }
 177 #endif