1/*
2 * Copyright © 2010,2011  Google, 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 * Google Author(s): Behdad Esfahbod
25 */
26
27#ifdef HAVE_CONFIG_H
28#include "config.h"
29#endif
30
31#include "hb.h"
32#include "hb-ot.h"
33
34#ifdef HAVE_GLIB
35# include <glib.h>
36# if !GLIB_CHECK_VERSION (2, 22, 0)
37#  define g_mapped_file_unref g_mapped_file_free
38# endif
39#endif
40#include <stdlib.h>
41#include <stdio.h>
42
43#ifdef HAVE_FREETYPE
44#include "hb-ft.h"
45#endif
46
47int
48main (int argc, char **argv)
49{
50  hb_blob_t *blob = NULL;
51
52  if (argc != 4 && argc != 5) {
53    fprintf (stderr, "usage: %s font-file lookup-index first-glyph [second-glyph]\n", argv[0]);
54    exit (1);
55  }
56
57  /* Create the blob */
58  {
59    const char *font_data;
60    unsigned int len;
61    hb_destroy_func_t destroy;
62    void *user_data;
63    hb_memory_mode_t mm;
64
65#ifdef HAVE_GLIB
66    GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
67    font_data = g_mapped_file_get_contents (mf);
68    len = g_mapped_file_get_length (mf);
69    destroy = (hb_destroy_func_t) g_mapped_file_unref;
70    user_data = (void *) mf;
71    mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
72#else
73    FILE *f = fopen (argv[1], "rb");
74    fseek (f, 0, SEEK_END);
75    len = ftell (f);
76    fseek (f, 0, SEEK_SET);
77    font_data = (const char *) malloc (len);
78    if (!font_data) len = 0;
79    len = fread ((char *) font_data, 1, len, f);
80    destroy = free;
81    user_data = (void *) font_data;
82    fclose (f);
83    mm = HB_MEMORY_MODE_WRITABLE;
84#endif
85
86    blob = hb_blob_create (font_data, len, mm, user_data, destroy);
87  }
88
89  /* Create the face */
90  hb_face_t *face = hb_face_create (blob, 0 /* first face */);
91  hb_blob_destroy (blob);
92  blob = NULL;
93
94  hb_font_t *font = hb_font_create (face);
95#ifdef HAVE_FREETYPE
96  hb_ft_font_set_funcs (font);
97#endif
98
99  unsigned int len = argc - 3;
100  hb_codepoint_t glyphs[2];
101  if (!hb_font_glyph_from_string (font, argv[3], -1, &glyphs[0]) ||
102      (argc > 4 &&
103       !hb_font_glyph_from_string (font, argv[4], -1, &glyphs[1])))
104    return 2;
105  return !hb_ot_layout_lookup_would_substitute (face, strtol (argv[2], NULL, 0), glyphs, len, false);
106}
107