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
main(int argc,char ** argv)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.has_required_feature ())
135 	      printf ("        No required feature\n");
136 	    else
137 	      printf ("        Required feature index: %d\n",
138 		      langsys.get_required_feature_index ());
139 
140 	    int num_features = langsys.get_feature_count ();
141 	    printf ("        %d feature(s) found in language system\n", num_features);
142 	    for (int n_feature = 0; n_feature < num_features; n_feature++) {
143 	      printf ("        Feature index %2d of %2d: %d\n", n_feature, num_features,
144 	              langsys.get_feature_index (n_feature));
145 	    }
146 	  }
147 	}
148 
149 	int num_features = g.get_feature_count ();
150 	printf ("    %d feature(s) found in table\n", num_features);
151 	for (int n_feature = 0; n_feature < num_features; n_feature++) {
152 	  const Feature &feature = g.get_feature (n_feature);
153 	  int num_lookups = feature.get_lookup_count ();
154 	  printf ("    Feature %2d of %2d: %c%c%c%c\n", n_feature, num_features,
155 	          HB_UNTAG(g.get_feature_tag(n_feature)));
156 
157 	  printf ("        %d lookup(s) found in feature\n", num_lookups);
158 	  for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
159 	    printf ("        Lookup index %2d of %2d: %d\n", n_lookup, num_lookups,
160 	            feature.get_lookup_index (n_lookup));
161 	  }
162 	}
163 
164 	int num_lookups = g.get_lookup_count ();
165 	printf ("    %d lookup(s) found in table\n", num_lookups);
166 	for (int n_lookup = 0; n_lookup < num_lookups; n_lookup++) {
167 	  const Lookup &lookup = g.get_lookup (n_lookup);
168 	  printf ("    Lookup %2d of %2d: type %d, props 0x%04X\n", n_lookup, num_lookups,
169 	          lookup.get_type(), lookup.get_props());
170 	}
171 
172 	}
173 	break;
174 
175       case GDEF::tableTag:
176 	{
177 
178 	const GDEF &gdef = *CastP<GDEF> (font_data + table.offset);
179 
180 	printf ("    Has %sglyph classes\n",
181 		  gdef.has_glyph_classes () ? "" : "no ");
182 	printf ("    Has %smark attachment types\n",
183 		  gdef.has_mark_attachment_types () ? "" : "no ");
184 	printf ("    Has %sattach points\n",
185 		  gdef.has_attach_points () ? "" : "no ");
186 	printf ("    Has %slig carets\n",
187 		  gdef.has_lig_carets () ? "" : "no ");
188 	printf ("    Has %smark sets\n",
189 		  gdef.has_mark_sets () ? "" : "no ");
190 	break;
191 	}
192       }
193     }
194   }
195 
196   return 0;
197 }
198 
199 
200