main.cc revision ee58aaebd296ea8237516754fd4e825d524b11b7
1/*
2 * Copyright (C) 2007,2008,2009  Red Hat, Inc.
3 *
4 *  This is part of HarfBuzz, an OpenType Layout engine 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#define HB_OT_LAYOUT_CC
28#include "hb-ot-layout-open-private.h"
29#include "hb-ot-layout-gdef-private.h"
30#include "hb-ot-layout-gsub-private.h"
31
32#include <stdlib.h>
33#include <stdio.h>
34
35int
36main (int argc, char **argv)
37{
38  if (argc != 2) {
39    fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
40    exit (1);
41  }
42
43  GMappedFile *mf = g_mapped_file_new (argv[1], FALSE, NULL);
44  const char *font_data = g_mapped_file_get_contents (mf);
45  int len = g_mapped_file_get_length (mf);
46
47  printf ("Opened font file %s: %d bytes long\n", argv[1], len);
48
49  const OpenTypeFontFile &ot = OpenTypeFontFile::get_for_data (font_data);
50
51  switch (ot.get_tag()) {
52  case OpenTypeFontFile::TrueTypeTag:
53    printf ("OpenType font with TrueType outlines\n");
54    break;
55  case OpenTypeFontFile::CFFTag:
56    printf ("OpenType font with CFF (Type1) outlines\n");
57    break;
58  case OpenTypeFontFile::TTCTag:
59    printf ("TrueType Collection of OpenType fonts\n");
60    break;
61  default:
62    printf ("Unknown font format\n");
63    break;
64  }
65
66  int num_fonts = ot.get_face_count ();
67  printf ("%d font(s) found in file\n", num_fonts);
68  for (int n_font = 0; n_font < num_fonts; n_font++) {
69    const OpenTypeFontFace &font = ot.get_face (n_font);
70    printf ("Font %d of %d:\n", n_font, num_fonts);
71
72    int num_tables = font.get_table_count ();
73    printf ("  %d table(s) found in font\n", num_tables);
74    for (int n_table = 0; n_table < num_tables; n_table++) {
75      const OpenTypeTable &table = font.get_table (n_table);
76      printf ("  Table %2d of %2d: %.4s (0x%08lx+0x%08lx)\n", n_table, num_tables,
77	      (const char *)table.get_tag(), table.get_offset(), table.get_length());
78
79      switch (table.get_tag ()) {
80
81      case GSUBGPOS::GSUBTag:
82      case GSUBGPOS::GPOSTag:
83	{
84
85	const GSUBGPOS &g = GSUBGPOS::get_for_data (ot.get_table_data (table));
86
87	int num_scripts = g.get_script_count ();
88	printf ("    %d script(s) found in table\n", num_scripts);
89	for (int n_script = 0; n_script < num_scripts; n_script++) {
90	  const Script &script = g.get_script (n_script);
91	  printf ("    Script %2d of %2d: %.4s\n", n_script, num_scripts,
92	          (const char *)g.get_script_tag(n_script));
93
94	  if (!script.has_default_lang_sys())
95	    printf ("      No default language system\n");
96	  int num_langsys = script.get_lang_sys_count ();
97	  printf ("      %d language system(s) found in script\n", num_langsys);
98	  for (int n_langsys = script.has_default_lang_sys() ? -1 : 0; n_langsys < num_langsys; n_langsys++) {
99	    const LangSys &langsys = n_langsys == -1
100				   ? script.get_default_lang_sys ()
101				   : script.get_lang_sys (n_langsys);
102	    printf (n_langsys == -1
103		   ? "      Default Language System\n"
104		   : "      Language System %2d of %2d: %.4s\n", n_langsys, num_langsys,
105	            (const char *)script.get_lang_sys_tag (n_langsys));
106	    if (langsys.get_required_feature_index () == NO_INDEX)
107	      printf ("        No required feature\n");
108
109	    int num_features = langsys.get_feature_count ();
110	    printf ("        %d feature(s) found in language system\n", num_features);
111	    for (int n_feature = 0; n_feature < num_features; n_feature++) {
112	      unsigned int feature_index = langsys.get_feature_index (n_feature);
113	      printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
114	              langsys.get_feature_index (n_feature));
115	    }
116	  }
117	}
118
119	int num_features = g.get_feature_count ();
120	printf ("    %d feature(s) found in table\n", num_features);
121	for (int n_feature = 0; n_feature < num_features; n_feature++) {
122	  const Feature &feature = g.get_feature (n_feature);
123	  printf ("    Feature %2d of %2d: %.4s; %d lookup(s)\n", n_feature, num_features,
124	          (const char *)g.get_feature_tag(n_feature),
125		  feature.get_lookup_count());
126
127	  int num_lookups = feature.get_lookup_count ();
128	  printf ("        %d lookup(s) found in feature\n", num_lookups);
129	  for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
130	    unsigned int lookup_index = feature.get_lookup_index (n_lookup);
131	    printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
132	            feature.get_lookup_index (n_lookup));
133	  }
134	}
135
136	int num_lookups = g.get_lookup_count ();
137	printf ("    %d lookup(s) found in table\n", num_lookups);
138	for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
139	  const Lookup &lookup = g.get_lookup (n_lookup);
140	  printf ("    Lookup %2d of %2d: type %d, flags 0x%04X\n", n_lookup, num_lookups,
141	          lookup.get_type(), lookup.get_flag());
142	}
143
144	}
145	break;
146
147      case GDEF::Tag:
148	{
149
150	const GDEF &gdef = GDEF::get_for_data (ot.get_table_data (table));
151
152	printf ("    Has %sglyph classes\n",
153		  gdef.has_glyph_classes () ? "" : "no ");
154	printf ("    Has %smark attachment types\n",
155		  gdef.has_mark_attachment_types () ? "" : "no ");
156	printf ("    Has %sattach list\n",
157		  gdef.has_attach_list () ? "" : "no ");
158	printf ("    Has %slig caret list\n",
159		  gdef.has_lig_caret_list () ? "" : "no ");
160
161	for (int glyph = 0; glyph < 1; glyph++)
162	  printf ("    glyph %d has class %d and mark attachment type %d\n",
163		  glyph,
164		  gdef.get_glyph_class (glyph),
165		  gdef.get_mark_attachment_type (glyph));
166
167	}
168	break;
169      }
170    }
171  }
172
173  return 0;
174}
175