lib/infores.c

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE.  *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
   5  * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE.    *
   6  * PLEASE READ THESE TERMS DISTRIBUTING.                            *
   7  *                                                                  *
   8  * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-2000             *
   9  * by Monty <monty@xiph.org> and The XIPHOPHORUS Company            *
  10  * http://www.xiph.org/                                             *
  11  *                                                                  *
  12  ********************************************************************
  13
  14  function: pack/unpack/dup/clear the various residue backend setups
  15  last mod: $Id: infores.c,v 1.1 2000/01/19 08:57:56 xiphmont Exp $
  16
  17  ********************************************************************/
  18
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include "vorbis/codec.h"
  22 #include "bitwise.h"
  23 #include "bookinternal.h"
  24
  25 /* handlers for residue backend 0 ***********************************/
  26
  27 /* unfinished as of 20000118 */
  28 static void *_vorbis_res0_dup(void *source){
  29   vorbis_info_res0 *d=malloc(sizeof(vorbis_info_res0));
  30   memcpy(d,source,sizeof(vorbis_info_res0));
  31   d->books=malloc(sizeof(int)*d->stages);
  32   memcpy(d->books,((vorbis_info_res0 *)source)->books,
  33          sizeof(int)*d->stages);
  34   return(d);
  35 }
  36
  37 static void _vorbis_res0_free(void *i){
  38   vorbis_info_res0 *d=(vorbis_info_res0 *)i;
  39   if(d){
  40     if(d->books)free(d->books);
  41     memset(d,0,sizeof(vorbis_info_res0));
  42     free(d);
  43   }
  44 }
  45
  46 /* not yet */
  47 static void _vorbis_res0_pack(oggpack_buffer *opb, void *vi){
  48 }
  49
  50 static void *_vorbis_res0_unpack(oggpack_buffer *opb){
  51   vorbis_info_floor0 d;
  52   memset(&d,0,sizeof(d));
  53   return(_vorbis_res0_dup(&d));
  54 }
  55
  56 /* stuff em into arrays ************************************************/
  57 #define VI_RESB 1
  58
  59 static void *(*vorbis_res_dup_P[])(void *)={
  60   _vorbis_res0_dup,
  61 };
  62
  63 static void (*vorbis_res_free_P[])(void *)={
  64   _vorbis_res0_free,
  65 };
  66
  67 static void (*vorbis_res_pack_P[])(oggpack_buffer *,void *)={
  68   _vorbis_res0_pack,
  69 };
  70
  71 static void *(*vorbis_res_unpack_P[])(oggpack_buffer *)={
  72   _vorbis_res0_unpack,
  73 };
  74