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 # 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
  47 int
  48 main (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 }