third_party/harfbuzz-ng/src/test-would-substitute.cc

   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 #endif
  37 #include <stdlib.h>
  38 #include <stdio.h>
  39
  40 #ifdef HAVE_FREETYPE
  41 #include "hb-ft.h"
  42 #endif
  43
  44 int
  45 main (int argc, char **argv)
  46 {
  47   hb_blob_t *blob = NULL;
  48
  49   if (argc != 4 && argc != 5) {
  50     fprintf (stderr, "usage: %s font-file lookup-index first-glyph [second-glyph]\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   /* Create the face */
  87   hb_face_t *face = hb_face_create (blob, 0 /* first face */);
  88   hb_blob_destroy (blob);
  89   blob = NULL;
  90
  91   hb_font_t *font = hb_font_create (face);
  92 #ifdef HAVE_FREETYPE
  93   hb_ft_font_set_funcs (font);
  94 #endif
  95
  96   unsigned int len = argc - 3;
  97   hb_codepoint_t glyphs[2];
  98   if (!hb_font_glyph_from_string (font, argv[3], -1, &glyphs[0]) ||
  99       (argc > 4 &&
 100        !hb_font_glyph_from_string (font, argv[4], -1, &glyphs[1])))
 101     return 2;
 102   return !hb_ot_layout_lookup_would_substitute (face, strtol (argv[2], NULL, 0), glyphs, len, false);
 103 }