main.cc revision bdd0ff5290bae4db65c3fdf95c5728031f13ca84 
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-open-file-private.hh"
29#include "hb-ot-layout-gdef-private.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
38int
39main (int argc, char **argv)
40{
41  if (argc != 2) {
42    fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
43    exit (1);
44  }
45
46  const char *font_data = NULL;
47  int len = 0;
48
49#ifdef HAVE_GLIB
50  GMappedFile *mf = g_mapped_file_new (argv[1], FALSE, NULL);
51  font_data = g_mapped_file_get_contents (mf);
52  len = g_mapped_file_get_length (mf);
53#else
54  FILE *f = fopen (argv[1], "rb");
55  fseek (f, 0, SEEK_END);
56  len = ftell (f);
57  fseek (f, 0, SEEK_SET);
58  font_data = (const char *) malloc (len);
59  len = fread ((char *) font_data, 1, len, f);
60#endif
61
62  printf ("Opened font file %s: %d bytes long\n", argv[1], len);
63
64  const OpenTypeFontFile &ot = OpenTypeFontFile::get_for_data (font_data);
65
66  switch (ot.tag) {
67  case OpenTypeFontFile::TrueTypeTag:
68    printf ("OpenType font with TrueType outlines\n");
69    break;
70  case OpenTypeFontFile::CFFTag:
71    printf ("OpenType font with CFF (Type1) outlines\n");
72    break;
73  case OpenTypeFontFile::TTCTag:
74    printf ("TrueType Collection of OpenType fonts\n");
75    break;
76  default:
77    printf ("Unknown font format\n");
78    break;
79  }
80
81  int num_fonts = ot.get_face_count ();
82  printf ("%d font(s) found in file\n", num_fonts);
83  for (int n_font = 0; n_font < num_fonts; n_font++) {
84    const OpenTypeFontFace &font = ot.get_face (n_font);
85    printf ("Font %d of %d:\n", n_font, num_fonts);
86
87    int num_tables = font.get_table_count ();
88    printf ("  %d table(s) found in font\n", num_tables);
89    for (int n_table = 0; n_table < num_tables; n_table++) {
90      const OpenTypeTable &table = font.get_table (n_table);
91      printf ("  Table %2d of %2d: %.4s (0x%08x+0x%08x)\n", n_table, num_tables,
92	      (const char *)table.tag,
93	      (unsigned int) table.offset,
94	      (unsigned int) table.length);
95
96      switch (table.tag) {
97
98      case GSUBGPOS::GSUBTag:
99      case GSUBGPOS::GPOSTag:
100	{
101
102	const GSUBGPOS &g = GSUBGPOS::get_for_data (ot.get_table_data (table));
103
104	int num_scripts = g.get_script_count ();
105	printf ("    %d script(s) found in table\n", num_scripts);
106	for (int n_script = 0; n_script < num_scripts; n_script++) {
107	  const Script &script = g.get_script (n_script);
108	  printf ("    Script %2d of %2d: %.4s\n", n_script, num_scripts,
109	          (const char *)g.get_script_tag(n_script));
110
111	  if (!script.has_default_lang_sys())
112	    printf ("      No default language system\n");
113	  int num_langsys = script.get_lang_sys_count ();
114	  printf ("      %d language system(s) found in script\n", num_langsys);
115	  for (int n_langsys = script.has_default_lang_sys() ? -1 : 0; n_langsys < num_langsys; n_langsys++) {
116	    const LangSys &langsys = n_langsys == -1
117				   ? script.get_default_lang_sys ()
118				   : script.get_lang_sys (n_langsys);
119	    printf (n_langsys == -1
120		   ? "      Default Language System\n"
121		   : "      Language System %2d of %2d: %.4s\n", n_langsys, num_langsys,
122	            (const char *)script.get_lang_sys_tag (n_langsys));
123	    if (langsys.get_required_feature_index () == NO_INDEX)
124	      printf ("        No required feature\n");
125
126	    int num_features = langsys.get_feature_count ();
127	    printf ("        %d feature(s) found in language system\n", num_features);
128	    for (int n_feature = 0; n_feature < num_features; n_feature++) {
129	      printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
130	              langsys.get_feature_index (n_feature));
131	    }
132	  }
133	}
134
135	int num_features = g.get_feature_count ();
136	printf ("    %d feature(s) found in table\n", num_features);
137	for (int n_feature = 0; n_feature < num_features; n_feature++) {
138	  const Feature &feature = g.get_feature (n_feature);
139	  printf ("    Feature %2d of %2d: %.4s; %d lookup(s)\n", n_feature, num_features,
140	          (const char *)g.get_feature_tag(n_feature),
141		  feature.get_lookup_count());
142
143	  int num_lookups = feature.get_lookup_count ();
144	  printf ("        %d lookup(s) found in feature\n", num_lookups);
145	  for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
146	    printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
147	            feature.get_lookup_index (n_lookup));
148	  }
149	}
150
151	int num_lookups = g.get_lookup_count ();
152	printf ("    %d lookup(s) found in table\n", num_lookups);
153	for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
154	  const Lookup &lookup = g.get_lookup (n_lookup);
155	  printf ("    Lookup %2d of %2d: type %d, flags 0x%04X\n", n_lookup, num_lookups,
156	          lookup.get_type(), lookup.get_flag());
157	}
158
159	}
160	break;
161
162      case GDEF::Tag:
163	{
164
165	const GDEF &gdef = GDEF::get_for_data (ot.get_table_data (table));
166
167	printf ("    Has %sglyph classes\n",
168		  gdef.has_glyph_classes () ? "" : "no ");
169	printf ("    Has %smark attachment types\n",
170		  gdef.has_mark_attachment_types () ? "" : "no ");
171	printf ("    Has %sattach points\n",
172		  gdef.has_attach_points () ? "" : "no ");
173	printf ("    Has %slig carets\n",
174		  gdef.has_lig_carets () ? "" : "no ");
175	printf ("    Has %smark sets\n",
176		  gdef.has_mark_sets () ? "" : "no ");
177	break;
178	}
179      }
180    }
181  }
182
183  return 0;
184}
185