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
33 #ifdef HAVE_GLIB
34 # include <glib.h>
35 # if !GLIB_CHECK_VERSION (2, 22, 0)
36 # define g_mapped_file_unref g_mapped_file_free
37 # endif
38 #endif
39 #include <stdlib.h>
40 #include <stdio.h>
41
42 #ifdef HAVE_FREETYPE
43 #include "hb-ft.h"
44 #endif
45
46 int
main(int argc,char ** argv)47 main (int argc, char **argv)
48 {
49 hb_blob_t *blob = NULL;
50
51 if (argc != 2) {
52 fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
53 exit (1);
54 }
55
56 /* Create the blob */
57 {
58 const char *font_data;
59 unsigned int len;
60 hb_destroy_func_t destroy;
61 void *user_data;
62 hb_memory_mode_t mm;
63
64 #ifdef HAVE_GLIB
65 GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
66 font_data = g_mapped_file_get_contents (mf);
67 len = g_mapped_file_get_length (mf);
68 destroy = (hb_destroy_func_t) g_mapped_file_unref;
69 user_data = (void *) mf;
70 mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
71 #else
72 FILE *f = fopen (argv[1], "rb");
73 fseek (f, 0, SEEK_END);
74 len = ftell (f);
75 fseek (f, 0, SEEK_SET);
76 font_data = (const char *) malloc (len);
77 if (!font_data) len = 0;
78 len = fread ((char *) font_data, 1, len, f);
79 destroy = free;
80 user_data = (void *) font_data;
81 fclose (f);
82 mm = HB_MEMORY_MODE_WRITABLE;
83 #endif
84
85 blob = hb_blob_create (font_data, len, mm, user_data, destroy);
86 }
87
88 printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob));
89
90 /* Create the face */
91 hb_face_t *face = hb_face_create (blob, 0 /* first face */);
92 hb_blob_destroy (blob);
93 blob = NULL;
94 unsigned int upem = hb_face_get_upem (face);
95
96 hb_font_t *font = hb_font_create (face);
97 hb_font_set_scale (font, upem, upem);
98
99 #ifdef HAVE_FREETYPE
100 hb_ft_font_set_funcs (font);
101 #endif
102
103 hb_buffer_t *buffer = hb_buffer_create ();
104
105 hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1);
106 hb_buffer_guess_segment_properties (buffer);
107
108 hb_shape (font, buffer, NULL, 0);
109
110 unsigned int count = hb_buffer_get_length (buffer);
111 hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, NULL);
112 hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, NULL);
113
114 for (unsigned int i = 0; i < count; i++)
115 {
116 hb_glyph_info_t *info = &infos[i];
117 hb_glyph_position_t *pos = &positions[i];
118
119 printf ("cluster %d glyph 0x%x at (%d,%d)+(%d,%d)\n",
120 info->cluster,
121 info->codepoint,
122 pos->x_offset,
123 pos->y_offset,
124 pos->x_advance,
125 pos->y_advance);
126
127 }
128
129 hb_buffer_destroy (buffer);
130 hb_font_destroy (font);
131 hb_face_destroy (face);
132
133 return 0;
134 }
135
136
137