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 /* The following variables are used by codec_malloc() to make use of free RAM
  31  * within the statically allocated codec buffer. */
  32 static size_t mem_ptr;
  33 static size_t bufsize;
  34 static unsigned char* mallocbuf;
  35
  36 int codec_init(void)
  37 {
  38     /* codec_get_buffer() aligns the resulting point to CACHEALIGN_SIZE. */
  39     mem_ptr = 0;
  40     mallocbuf = (unsigned char *)ci->codec_get_buffer((size_t *)&bufsize);
  41
  42     return 0;
  43 }
  44
  45 void codec_set_replaygain(const struct mp3entry *id3)
  46 {
  47     ci->configure(DSP_SET_TRACK_GAIN, id3->track_gain);
  48     ci->configure(DSP_SET_ALBUM_GAIN, id3->album_gain);
  49     ci->configure(DSP_SET_TRACK_PEAK, id3->track_peak);
  50     ci->configure(DSP_SET_ALBUM_PEAK, id3->album_peak);
  51 }
  52
  53 /* Various "helper functions" common to all the xxx2wav decoder plugins  */
  54
  55
  56 void* codec_malloc(size_t size)
  57 {
  58     void* x;
  59
  60     if (mem_ptr + (long)size > bufsize)
  61         return NULL;
  62
  63     x=&mallocbuf[mem_ptr];
  64
  65     /* Keep memory aligned to CACHEALIGN_SIZE. */
  66     mem_ptr += (size + (CACHEALIGN_SIZE-1)) & ~(CACHEALIGN_SIZE-1);
  67
  68     return(x);
  69 }
  70
  71 void* codec_calloc(size_t nmemb, size_t size)
  72 {
  73     void* x;
  74     x = codec_malloc(nmemb*size);
  75     if (x == NULL)
  76         return NULL;
  77     ci->memset(x,0,nmemb*size);
  78     return(x);
  79 }
  80
  81 void codec_free(void* ptr) {
  82     (void)ptr;
  83 }
  84
  85 void* codec_realloc(void* ptr, size_t size)
  86 {
  87     void* x;
  88     (void)ptr;
  89     x = codec_malloc(size);
  90     return(x);
  91 }
  92
  93 size_t strlen(const char *s)
  94 {
  95     return(ci->strlen(s));
  96 }
  97
  98 char *strcpy(char *dest, const char *src)
  99 {
 100     return(ci->strcpy(dest,src));
 101 }
 102
 103 char *strcat(char *dest, const char *src)
 104 {
 105     return(ci->strcat(dest,src));
 106 }
 107
 108 int strcmp(const char *s1, const char *s2)
 109 {
 110     return(ci->strcmp(s1,s2));
 111 }
 112
 113 void *memcpy(void *dest, const void *src, size_t n)
 114 {
 115     return(ci->memcpy(dest,src,n));
 116 }
 117
 118 void *memset(void *s, int c, size_t n)
 119 {
 120     return(ci->memset(s,c,n));
 121 }
 122
 123 int memcmp(const void *s1, const void *s2, size_t n)
 124 {
 125     return(ci->memcmp(s1,s2,n));
 126 }
 127
 128 void* memchr(const void *s, int c, size_t n)
 129 {
 130     return(ci->memchr(s,c,n));
 131 }
 132
 133 void *memmove(void *dest, const void *src, size_t n)
 134 {
 135     return(ci->memmove(dest,src,n));
 136 }
 137
 138 void qsort(void *base, size_t nmemb, size_t size,
 139            int(*compar)(const void *, const void *))
 140 {
 141     ci->qsort(base,nmemb,size,compar);
 142 }
 143
 144 /* From ffmpeg - libavutil/common.h */
 145 const uint8_t bs_log2_tab[256] ICONST_ATTR = {
 146     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,
 147     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,
 148     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,
 149     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,
 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     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,
 152     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,
 153     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
 154 };
 155
 156 const uint8_t bs_clz_tab[256] ICONST_ATTR = {
 157     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,
 158     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,
 159     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,
 160     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,
 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     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,
 163     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,
 164     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
 165 };
 166
 167 #ifdef RB_PROFILE
 168 void __cyg_profile_func_enter(void *this_fn, void *call_site) {
 169 /* This workaround is required for coldfire gcc 3.4 but is broken for 4.4
 170    and 4.5, but for those the other way works. */
 171 #if defined(CPU_COLDFIRE) && defined(__GNUC__) && __GNUC__ < 4
 172     (void)call_site;
 173     ci->profile_func_enter(this_fn, __builtin_return_address(1));
 174 #else
 175     ci->profile_func_enter(this_fn, call_site);
 176 #endif
 177 }
 178
 179 void __cyg_profile_func_exit(void *this_fn, void *call_site) {
 180     ci->profile_func_exit(this_fn,call_site);
 181 }
 182 #endif