tools/dtdesc/c_iff/example.c

   1 /*
   2  *  c_iff - a portable IFF-parser
   3  *
   4  *  Copyright (C) 2000, 2001 Joerg Dietrich
   5  *
   6  *  This is the AROS-version of c_iff.
   7  *  It is distributed under the AROS Public License.
   8  *  But I reserve the right to distribute
   9  *  my own version under other licenses.
  10  */
  11
  12 /*
  13  *  example.c - shows how to use c_iff
  14  */
  15
  16 /*
  17  *  includes
  18  */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22
  23 /*
  24  *  include c_iff.h when you want to use c_iff
  25  */
  26
  27 #include "c_iff.h"
  28
  29 /*
  30  *  prototypes
  31  */
  32
  33 void PrintID(uint32_t ID);
  34
  35 /*
  36  *  the main-program
  37  */
  38
  39 int main(int argc, char **argv)
  40 {
  41  /*
  42   *  struct IFFHandle is the basic struct of c_iff.
  43   */
  44  struct IFFHandle *IH;
  45
  46  if(!(argc==2))
  47  {
  48   fprintf(stderr, "usage: %s IFF-file\n", argv[0]);
  49
  50   return(0);
  51  }
  52
  53  /*
  54   *  OpenIFF() is used to open an existing IFF
  55   */
  56  IH=OpenIFF(argv[1]);
  57  if(!IH)
  58  {
  59   return(0);
  60  }
  61
  62  printf("Type: ");
  63  PrintID(IH->IFFType);
  64  printf("\n");
  65
  66  while(TRUE)
  67  {
  68   /*
  69    *  Read the header of the next chunk.
  70    */
  71   if(!ReadChunkHeader(IH))
  72   {
  73    break;
  74   }
  75
  76   printf(" Chunk: ");
  77   PrintID(IH->ChunkID);
  78   printf("\n");
  79
  80   /*
  81    *  If you are not interessted in the Data, skip it with SkipChunkData() .
  82    *  If you need the Data use ReadChunkData() .
  83    */
  84   SkipChunkData(IH);
  85  }
  86
  87  /*
  88   *  Alway close an IFF with CloseIFF() !
  89   */
  90  CloseIFF(IH);
  91
  92  /*
  93   *  Use NewIFF() to open a new IFF for writing.
  94   */
  95  IH=NewIFF("test1.iff", MAKE_ID('A','N','I','M'));
  96  if(!IH)
  97  {
  98   return(0);
  99  }
 100
 101  /*
 102   *  Open a new SubFORM, an IFF inside an IFF.
 103   */
 104  if(NewSubFORM(IH, MAKE_ID('I','L','B','M')))
 105  {
 106   /*
 107    *  Open a new Chunk.
 108    */
 109   if(NewChunk(IH, MAKE_ID('F','V','E','R')))
 110   {
 111    /*
 112     *  Write some data to the chunk.
 113     *  The chunk-sizes are automatically fixed.
 114     */
 115    WriteChunkData(IH, "$VER: test1 1.10", 17);
 116
 117    /*
 118     *  You must always end a chunk with EndChunk() .
 119     */
 120    EndChunk(IH);
 121   }
 122
 123   if(NewChunk(IH, MAKE_ID('A','U','T','H')))
 124   {
 125    WriteChunkData(IH, "Jörg Dietrich", 13);
 126    EndChunk(IH);
 127   }
 128
 129   /*
 130    *  EndChunk is used too, to end a SubFORM.
 131    */
 132   EndChunk(IH);
 133  }
 134
 135  /*
 136   *  And always close your IFF.
 137   */
 138  CloseIFF(IH);
 139  return(0);
 140 }
 141
 142 void PrintID(uint32_t ID)
 143 {
 144  char Buffer[5];
 145
 146  Buffer[0]=(ID&0xFF000000)>>24;
 147  Buffer[1]=(ID&0xFF0000)  >>16;
 148  Buffer[2]=(ID&0xFF00)    >> 8;
 149  Buffer[3]=(ID&0xFF);
 150  Buffer[4]='\0';
 151
 152  printf("%s", Buffer);
 153 }
 154
 155