main.cc revision baec684fde2303edb16341bfcf1022cd72acf129 
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 <glib.h>
33#include <stdlib.h>
34#include <stdio.h>
35
36int
37main (int argc, char **argv)
38{
39  if (argc != 2) {
40    fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
41    exit (1);
42  }
43
44  GMappedFile *mf = g_mapped_file_new (argv[1], FALSE, NULL);
45  const char *font_data = g_mapped_file_get_contents (mf);
46  int len = g_mapped_file_get_length (mf);
47
48  printf ("Opened font file %s: %d bytes long\n", argv[1], len);
49
50  const OpenTypeFontFile &ot = OpenTypeFontFile::get_for_data (font_data);
51
52  switch (ot.tag) {
53  case OpenTypeFontFile::TrueTypeTag:
54    printf ("OpenType font with TrueType outlines\n");
55    break;
56  case OpenTypeFontFile::CFFTag:
57    printf ("OpenType font with CFF (Type1) outlines\n");
58    break;
59  case OpenTypeFontFile::TTCTag:
60    printf ("TrueType Collection of OpenType fonts\n");
61    break;
62  default:
63    printf ("Unknown font format\n");
64    break;
65  }
66
67  int num_fonts = ot.get_face_count ();
68  printf ("%d font(s) found in file\n", num_fonts);
69  for (int n_font = 0; n_font < num_fonts; n_font++) {
70    const OpenTypeFontFace &font = ot.get_face (n_font);
71    printf ("Font %d of %d:\n", n_font, num_fonts);
72
73    int num_tables = font.get_table_count ();
74    printf ("  %d table(s) found in font\n", num_tables);
75    for (int n_table = 0; n_table < num_tables; n_table++) {
76      const OpenTypeTable &table = font.get_table (n_table);
77      printf ("  Table %2d of %2d: %.4s (0x%08lx+0x%08lx)\n", n_table, num_tables,
78	      (const char *)table.tag,
79	      (unsigned int) table.offset,
80	      (unsigned int) table.length);
81
82      switch (table.tag) {
83
84      case GSUBGPOS::GSUBTag:
85      case GSUBGPOS::GPOSTag:
86	{
87
88	const GSUBGPOS &g = GSUBGPOS::get_for_data (ot.get_table_data (table));
89
90	int num_scripts = g.get_script_count ();
91	printf ("    %d script(s) found in table\n", num_scripts);
92	for (int n_script = 0; n_script < num_scripts; n_script++) {
93	  const Script &script = g.get_script (n_script);
94	  printf ("    Script %2d of %2d: %.4s\n", n_script, num_scripts,
95	          (const char *)g.get_script_tag(n_script));
96
97	  if (!script.has_default_lang_sys())
98	    printf ("      No default language system\n");
99	  int num_langsys = script.get_lang_sys_count ();
100	  printf ("      %d language system(s) found in script\n", num_langsys);
101	  for (int n_langsys = script.has_default_lang_sys() ? -1 : 0; n_langsys < num_langsys; n_langsys++) {
102	    const LangSys &langsys = n_langsys == -1
103				   ? script.get_default_lang_sys ()
104				   : script.get_lang_sys (n_langsys);
105	    printf (n_langsys == -1
106		   ? "      Default Language System\n"
107		   : "      Language System %2d of %2d: %.4s\n", n_langsys, num_langsys,
108	            (const char *)script.get_lang_sys_tag (n_langsys));
109	    if (langsys.get_required_feature_index () == NO_INDEX)
110	      printf ("        No required feature\n");
111
112	    int num_features = langsys.get_feature_count ();
113	    printf ("        %d feature(s) found in language system\n", num_features);
114	    for (int n_feature = 0; n_feature < num_features; n_feature++) {
115	      unsigned int feature_index = langsys.get_feature_index (n_feature);
116	      printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
117	              langsys.get_feature_index (n_feature));
118	    }
119	  }
120	}
121
122	int num_features = g.get_feature_count ();
123	printf ("    %d feature(s) found in table\n", num_features);
124	for (int n_feature = 0; n_feature < num_features; n_feature++) {
125	  const Feature &feature = g.get_feature (n_feature);
126	  printf ("    Feature %2d of %2d: %.4s; %d lookup(s)\n", n_feature, num_features,
127	          (const char *)g.get_feature_tag(n_feature),
128		  feature.get_lookup_count());
129
130	  int num_lookups = feature.get_lookup_count ();
131	  printf ("        %d lookup(s) found in feature\n", num_lookups);
132	  for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
133	    unsigned int lookup_index = feature.get_lookup_index (n_lookup);
134	    printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
135	            feature.get_lookup_index (n_lookup));
136	  }
137	}
138
139	int num_lookups = g.get_lookup_count ();
140	printf ("    %d lookup(s) found in table\n", num_lookups);
141	for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
142	  const Lookup &lookup = g.get_lookup (n_lookup);
143	  printf ("    Lookup %2d of %2d: type %d, flags 0x%04X\n", n_lookup, num_lookups,
144	          lookup.get_type(), lookup.get_flag());
145	}
146
147	}
148	break;
149
150      case GDEF::Tag:
151	{
152
153	const GDEF &gdef = GDEF::get_for_data (ot.get_table_data (table));
154
155	printf ("    Has %sglyph classes\n",
156		  gdef.has_glyph_classes () ? "" : "no ");
157	printf ("    Has %smark attachment types\n",
158		  gdef.has_mark_attachment_types () ? "" : "no ");
159	printf ("    Has %sattach points\n",
160		  gdef.has_attach_points () ? "" : "no ");
161	printf ("    Has %slig carets\n",
162		  gdef.has_lig_carets () ? "" : "no ");
163	break;
164	}
165      }
166    }
167  }
168
169  return 0;
170}
171