third_party/harfbuzz-ng/src/main.cc

   1 /*
   2  * Copyright © 2007,2008,2009  Red Hat, Inc.
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   6  * Permission is hereby granted, without written agreement and without
   7  * license or royalty fees, to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose, provided that the
   9  * above copyright notice and the following two paragraphs appear in
  10  * all copies of this software.
  11  *
  12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  16  * DAMAGE.
  17  *
  18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  23  *
  24  * Red Hat Author(s): Behdad Esfahbod
  25  */
  26
  27 #include "hb-mutex-private.hh"
  28 #include "hb-open-file-private.hh"
  29 #include "hb-ot-layout-gdef-table.hh"
  30 #include "hb-ot-layout-gsubgpos-private.hh"
  31
  32 #ifdef HAVE_GLIB
  33 #include <glib.h>
  34 #endif
  35 #include <stdlib.h>
  36 #include <stdio.h>
  37
  38
  39 using namespace OT;
  40
  41
  42 int
  43 main (int argc, char **argv)
  44 {
  45   if (argc != 2) {
  46     fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
  47     exit (1);
  48   }
  49
  50   const char *font_data = NULL;
  51   int len = 0;
  52
  53 #ifdef HAVE_GLIB
  54   GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
  55   font_data = g_mapped_file_get_contents (mf);
  56   len = g_mapped_file_get_length (mf);
  57 #else
  58   FILE *f = fopen (argv[1], "rb");
  59   fseek (f, 0, SEEK_END);
  60   len = ftell (f);
  61   fseek (f, 0, SEEK_SET);
  62   font_data = (const char *) malloc (len);
  63   len = fread ((char *) font_data, 1, len, f);
  64 #endif
  65
  66   printf ("Opened font file %s: %d bytes long\n", argv[1], len);
  67
  68   const OpenTypeFontFile &ot = *CastP<OpenTypeFontFile> (font_data);
  69
  70   switch (ot.get_tag ()) {
  71   case OpenTypeFontFile::TrueTypeTag:
  72     printf ("OpenType font with TrueType outlines\n");
  73     break;
  74   case OpenTypeFontFile::CFFTag:
  75     printf ("OpenType font with CFF (Type1) outlines\n");
  76     break;
  77   case OpenTypeFontFile::TTCTag:
  78     printf ("TrueType Collection of OpenType fonts\n");
  79     break;
  80   case OpenTypeFontFile::TrueTag:
  81     printf ("Obsolete Apple TrueType font\n");
  82     break;
  83   case OpenTypeFontFile::Typ1Tag:
  84     printf ("Obsolete Apple Type1 font in SFNT container\n");
  85     break;
  86   default:
  87     printf ("Unknown font format\n");
  88     break;
  89   }
  90
  91   int num_fonts = ot.get_face_count ();
  92   printf ("%d font(s) found in file\n", num_fonts);
  93   for (int n_font = 0; n_font < num_fonts; n_font++) {
  94     const OpenTypeFontFace &font = ot.get_face (n_font);
  95     printf ("Font %d of %d:\n", n_font, num_fonts);
  96
  97     int num_tables = font.get_table_count ();
  98     printf ("  %d table(s) found in font\n", num_tables);
  99     for (int n_table = 0; n_table < num_tables; n_table++) {
 100       const OpenTypeTable &table = font.get_table (n_table);
 101       printf ("  Table %2d of %2d: %.4s (0x%08x+0x%08x)\n", n_table, num_tables,
 102               (const char *)table.tag,
 103               (unsigned int) table.offset,
 104               (unsigned int) table.length);
 105
 106       switch (table.tag) {
 107
 108       case GSUBGPOS::GSUBTag:
 109       case GSUBGPOS::GPOSTag:
 110         {
 111
 112         const GSUBGPOS &g = *CastP<GSUBGPOS> (font_data + table.offset);
 113
 114         int num_scripts = g.get_script_count ();
 115         printf ("    %d script(s) found in table\n", num_scripts);
 116         for (int n_script = 0; n_script < num_scripts; n_script++) {
 117           const Script &script = g.get_script (n_script);
 118           printf ("    Script %2d of %2d: %.4s\n", n_script, num_scripts,
 119                   (const char *)g.get_script_tag(n_script));
 120
 121           if (!script.has_default_lang_sys())
 122             printf ("      No default language system\n");
 123           int num_langsys = script.get_lang_sys_count ();
 124           printf ("      %d language system(s) found in script\n", num_langsys);
 125           for (int n_langsys = script.has_default_lang_sys() ? -1 : 0; n_langsys < num_langsys; n_langsys++) {
 126             const LangSys &langsys = n_langsys == -1
 127                                    ? script.get_default_lang_sys ()
 128                                    : script.get_lang_sys (n_langsys);
 129             if (n_langsys == -1)
 130               printf ("      Default Language System\n");
 131             else
 132               printf ("      Language System %2d of %2d: %.4s\n", n_langsys, num_langsys,
 133                       (const char *)script.get_lang_sys_tag (n_langsys));
 134             if (langsys.get_required_feature_index () == Index::NOT_FOUND_INDEX)
 135               printf ("        No required feature\n");
 136
 137             int num_features = langsys.get_feature_count ();
 138             printf ("        %d feature(s) found in language system\n", num_features);
 139             for (int n_feature = 0; n_feature < num_features; n_feature++) {
 140               printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
 141                       langsys.get_feature_index (n_feature));
 142             }
 143           }
 144         }
 145
 146         int num_features = g.get_feature_count ();
 147         printf ("    %d feature(s) found in table\n", num_features);
 148         for (int n_feature = 0; n_feature < num_features; n_feature++) {
 149           const Feature &feature = g.get_feature (n_feature);
 150           printf ("    Feature %2d of %2d: %.4s; %d lookup(s)\n", n_feature, num_features,
 151                   (const char *)g.get_feature_tag(n_feature),
 152                   feature.get_lookup_count());
 153
 154           int num_lookups = feature.get_lookup_count ();
 155           printf ("        %d lookup(s) found in feature\n", num_lookups);
 156           for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
 157             printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
 158                     feature.get_lookup_index (n_lookup));
 159           }
 160         }
 161
 162         int num_lookups = g.get_lookup_count ();
 163         printf ("    %d lookup(s) found in table\n", num_lookups);
 164         for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
 165           const Lookup &lookup = g.get_lookup (n_lookup);
 166           printf ("    Lookup %2d of %2d: type %d, props 0x%04X\n", n_lookup, num_lookups,
 167                   lookup.get_type(), lookup.get_props());
 168         }
 169
 170         }
 171         break;
 172
 173       case GDEF::tableTag:
 174         {
 175
 176         const GDEF &gdef = *CastP<GDEF> (font_data + table.offset);
 177
 178         printf ("    Has %sglyph classes\n",
 179                   gdef.has_glyph_classes () ? "" : "no ");
 180         printf ("    Has %smark attachment types\n",
 181                   gdef.has_mark_attachment_types () ? "" : "no ");
 182         printf ("    Has %sattach points\n",
 183                   gdef.has_attach_points () ? "" : "no ");
 184         printf ("    Has %slig carets\n",
 185                   gdef.has_lig_carets () ? "" : "no ");
 186         printf ("    Has %smark sets\n",
 187                   gdef.has_mark_sets () ? "" : "no ");
 188         break;
 189         }
 190       }
 191     }
 192   }
 193
 194   return 0;
 195 }
 196
 197