test.cc revision 38b2118724600521c6ad1e49df0667dcdf863634 
1/*
2 * Copyright © 2010  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 * Red Hat Author(s): Behdad Esfahbod
25 * Google Author(s): Behdad Esfahbod
26 */
27
28#if HAVE_CONFIG_H
29#include "config.h"
30#endif
31
32#include "hb.h"
33
34#ifdef HAVE_GLIB
35#include <glib.h>
36#endif
37#include <stdlib.h>
38#include <stdio.h>
39
40#ifdef HAVE_FREETYPE
41#include "hb-ft.h"
42#endif
43
44int
45main (int argc, char **argv)
46{
47  hb_blob_t *blob = NULL;
48
49  if (argc != 2) {
50    fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
51    exit (1);
52  }
53
54  /* Create the blob */
55  {
56    const char *font_data;
57    unsigned int len;
58    hb_destroy_func_t destroy;
59    void *user_data;
60    hb_memory_mode_t mm;
61
62#ifdef HAVE_GLIB
63    GMappedFile *mf = g_mapped_file_new (argv[1], FALSE, NULL);
64    font_data = g_mapped_file_get_contents (mf);
65    len = g_mapped_file_get_length (mf);
66    destroy = (hb_destroy_func_t) g_mapped_file_unref;
67    user_data = (void *) mf;
68    mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
69#else
70    FILE *f = fopen (argv[1], "rb");
71    fseek (f, 0, SEEK_END);
72    len = ftell (f);
73    fseek (f, 0, SEEK_SET);
74    font_data = (const char *) malloc (len);
75    if (!font_data) len = 0;
76    len = fread ((char *) font_data, 1, len, f);
77    destroy = free;
78    user_data = (void *) font_data;
79    fclose (f);
80    mm = HB_MEMORY_MODE_WRITABLE;
81#endif
82
83    blob = hb_blob_create (font_data, len, mm, user_data, destroy);
84  }
85
86  printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob));
87
88  /* Create the face */
89  hb_face_t *face = hb_face_create (blob, 0 /* first face */);
90  hb_blob_destroy (blob);
91  blob = NULL;
92  unsigned int upem = hb_face_get_upem (face);
93
94  hb_font_t *font = hb_font_create (face);
95  hb_font_set_scale (font, upem, upem);
96
97#if HAVE_FREETYPE
98  hb_ft_font_set_funcs (font);
99#endif
100
101  hb_buffer_t *buffer = hb_buffer_create (0);
102
103  hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1);
104
105  hb_shape (font, buffer, NULL, 0);
106
107  unsigned int count = hb_buffer_get_length (buffer);
108  hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, NULL);
109  hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, NULL);
110
111  for (unsigned int i = 0; i < count; i++)
112  {
113    hb_glyph_info_t *info = &infos[i];
114    hb_glyph_position_t *pos = &positions[i];
115
116    printf ("cluster %d	glyph 0x%x at	(%d,%d)+(%d,%d)\n",
117	    info->cluster,
118	    info->codepoint,
119	    pos->x_offset,
120	    pos->x_offset,
121	    pos->x_advance,
122	    pos->y_advance);
123
124  }
125
126  hb_buffer_destroy (buffer);
127  hb_font_destroy (font);
128  hb_face_destroy (face);
129
130  return 0;
131}
132
133
134