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/src/freetype/src/tools/test_afm.c

https://bitbucket.org/cabalistic/ogredeps/
C | 157 lines | 115 code | 38 blank | 4 comment | 15 complexity | 74466ef4992d9efce605a8872d54736a MD5 | raw file
  1/*
  2 * gcc -DFT2_BUILD_LIBRARY -I../../include -o test_afm test_afm.c \
  3 *     -L../../objs/.libs -lfreetype -lz -static
  4 */
  5#include <ft2build.h>
  6#include FT_FREETYPE_H
  7#include FT_INTERNAL_STREAM_H
  8#include FT_INTERNAL_POSTSCRIPT_AUX_H
  9
 10  void dump_fontinfo( AFM_FontInfo  fi )
 11  {
 12    FT_Int  i;
 13
 14
 15    printf( "This AFM is for %sCID font.\n\n",
 16            ( fi->IsCIDFont ) ? "" : "non-" );
 17
 18    printf( "FontBBox: %.2f %.2f %.2f %.2f\n", fi->FontBBox.xMin / 65536.,
 19                                               fi->FontBBox.yMin / 65536.,
 20                                               fi->FontBBox.xMax / 65536.,
 21                                               fi->FontBBox.yMax / 65536. );
 22    printf( "Ascender: %.2f\n", fi->Ascender / 65536. );
 23    printf( "Descender: %.2f\n\n", fi->Descender / 65536. );
 24
 25    if ( fi->NumTrackKern )
 26      printf( "There are %d sets of track kernings:\n",
 27              fi->NumTrackKern );
 28    else
 29      printf( "There is no track kerning.\n" );
 30
 31    for ( i = 0; i < fi->NumTrackKern; i++ )
 32    {
 33      AFM_TrackKern  tk = fi->TrackKerns + i;
 34
 35
 36      printf( "\t%2d: %5.2f %5.2f %5.2f %5.2f\n", tk->degree,
 37                                                  tk->min_ptsize / 65536.,
 38                                                  tk->min_kern / 65536.,
 39                                                  tk->max_ptsize / 65536.,
 40                                                  tk->max_kern / 65536. );
 41    }
 42
 43    printf( "\n" );
 44
 45    if ( fi->NumKernPair )
 46      printf( "There are %d kerning pairs:\n",
 47              fi->NumKernPair );
 48    else
 49      printf( "There is no kerning pair.\n" );
 50
 51    for ( i = 0; i < fi->NumKernPair; i++ )
 52    {
 53      AFM_KernPair  kp = fi->KernPairs + i;
 54
 55
 56      printf( "\t%3d + %3d => (%4d, %4d)\n", kp->index1,
 57                                             kp->index2,
 58                                             kp->x,
 59                                             kp->y );
 60    }
 61
 62  }
 63
 64  int
 65  dummy_get_index( const char*  name,
 66                   FT_Offset    len,
 67                   void*        user_data )
 68  {
 69    if ( len )
 70      return name[0];
 71    else
 72      return 0;
 73  }
 74
 75  FT_Error
 76  parse_afm( FT_Library    library,
 77             FT_Stream     stream,
 78             AFM_FontInfo  fi )
 79  {
 80    PSAux_Service  psaux;
 81    AFM_ParserRec  parser;
 82    FT_Error       error = FT_Err_Ok;
 83
 84
 85    psaux = (PSAux_Service)FT_Get_Module_Interface( library, "psaux" );
 86    if ( !psaux || !psaux->afm_parser_funcs )
 87      return -1;
 88
 89    error = FT_Stream_EnterFrame( stream, stream->size );
 90    if ( error )
 91      return error;
 92
 93    error = psaux->afm_parser_funcs->init( &parser,
 94                                           library->memory,
 95                                           stream->cursor,
 96                                           stream->limit );
 97    if ( error )
 98      return error;
 99
100    parser.FontInfo = fi;
101    parser.get_index = dummy_get_index;
102
103    error = psaux->afm_parser_funcs->parse( &parser );
104
105    psaux->afm_parser_funcs->done( &parser );
106
107    return error;
108  }
109
110
111  int main( int    argc,
112            char** argv )
113  {
114    FT_Library       library;
115    FT_StreamRec     stream;
116    FT_Error         error = FT_Err_Ok;
117    AFM_FontInfoRec  fi;
118
119
120    if ( argc < 2 )
121      return FT_Err_Invalid_Argument;
122
123    error = FT_Init_FreeType( &library );
124    if ( error )
125      return error;
126
127    FT_ZERO( &stream );
128    error = FT_Stream_Open( &stream, argv[1] );
129    if ( error )
130      goto Exit;
131    stream.memory = library->memory;
132
133    FT_ZERO( &fi );
134    error = parse_afm( library, &stream, &fi );
135
136    if ( !error )
137    {
138      FT_Memory  memory = library->memory;
139
140
141      dump_fontinfo( &fi );
142
143      if ( fi.KernPairs )
144        FT_FREE( fi.KernPairs );
145      if ( fi.TrackKerns )
146        FT_FREE( fi.TrackKerns );
147    }
148    else
149      printf( "parse error\n" );
150
151    FT_Stream_Close( &stream );
152
153  Exit:
154    FT_Done_FreeType( library );
155
156    return error;
157  }