summaryrefslogtreecommitdiff
path: root/Build/source/libs/harfbuzz/harfbuzz-src/src/test.cc
blob: 9592b379e9fddce34c9421aa1c7fbeb9a2589be3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/*
 * Copyright © 2010,2011  Google, Inc.
 *
 *  This is part of HarfBuzz, a text shaping library.
 *
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the
 * above copyright notice and the following two paragraphs appear in
 * all copies of this software.
 *
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 *
 * Google Author(s): Behdad Esfahbod
 */

#include "hb-private.hh"

#include "hb.h"

#ifdef HAVE_GLIB
# include <glib.h>
# if !GLIB_CHECK_VERSION (2, 22, 0)
#  define g_mapped_file_unref g_mapped_file_free
# endif
#endif
#include <stdlib.h>
#include <stdio.h>

#ifdef HAVE_FREETYPE
#include "hb-ft.h"
#endif

int
main (int argc, char **argv)
{
  hb_blob_t *blob = nullptr;

  if (argc != 2) {
    fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
    exit (1);
  }

  /* Create the blob */
  {
    const char *font_data;
    unsigned int len;
    hb_destroy_func_t destroy;
    void *user_data;
    hb_memory_mode_t mm;

#ifdef HAVE_GLIB
    GMappedFile *mf = g_mapped_file_new (argv[1], false, nullptr);
    font_data = g_mapped_file_get_contents (mf);
    len = g_mapped_file_get_length (mf);
    destroy = (hb_destroy_func_t) g_mapped_file_unref;
    user_data = (void *) mf;
    mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
#else
    FILE *f = fopen (argv[1], "rb");
    fseek (f, 0, SEEK_END);
    len = ftell (f);
    fseek (f, 0, SEEK_SET);
    font_data = (const char *) malloc (len);
    if (!font_data) len = 0;
    len = fread ((char *) font_data, 1, len, f);
    destroy = free;
    user_data = (void *) font_data;
    fclose (f);
    mm = HB_MEMORY_MODE_WRITABLE;
#endif

    blob = hb_blob_create (font_data, len, mm, user_data, destroy);
  }

  printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob));

  /* Create the face */
  hb_face_t *face = hb_face_create (blob, 0 /* first face */);
  hb_blob_destroy (blob);
  blob = nullptr;
  unsigned int upem = hb_face_get_upem (face);

  hb_font_t *font = hb_font_create (face);
  hb_font_set_scale (font, upem, upem);

#ifdef HAVE_FREETYPE
  hb_ft_font_set_funcs (font);
#endif

  hb_buffer_t *buffer = hb_buffer_create ();

  hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1);
  hb_buffer_guess_segment_properties (buffer);

  hb_shape (font, buffer, nullptr, 0);

  unsigned int count = hb_buffer_get_length (buffer);
  hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, nullptr);
  hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, nullptr);

  for (unsigned int i = 0; i < count; i++)
  {
    hb_glyph_info_t *info = &infos[i];
    hb_glyph_position_t *pos = &positions[i];

    printf ("cluster %d	glyph 0x%x at	(%d,%d)+(%d,%d)\n",
	    info->cluster,
	    info->codepoint,
	    pos->x_offset,
	    pos->y_offset,
	    pos->x_advance,
	    pos->y_advance);

  }

  hb_buffer_destroy (buffer);
  hb_font_destroy (font);
  hb_face_destroy (face);

  return 0;
}