third_party/harfbuzz-ng/src/test-buffer-serialize.cc

   1 /*
   2  * Copyright © 2010,2011,2013  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 #ifdef HAVE_FREETYPE
  33 #include "hb-ft.h"
  34 #endif
  35
  36 #ifdef HAVE_GLIB
  37 #include <glib.h>
  38 #endif
  39 #include <stdlib.h>
  40 #include <stdio.h>
  41
  42 int
  43 main (int argc, char **argv)
  44 {
  45   hb_blob_t *blob = NULL;
  46
  47   if (argc != 2) {
  48     fprintf (stderr, "usage: %s font-file\n", argv[0]);
  49     exit (1);
  50   }
  51
  52   /* Create the blob */
  53   {
  54     const char *font_data;
  55     unsigned int len;
  56     hb_destroy_func_t destroy;
  57     void *user_data;
  58     hb_memory_mode_t mm;
  59
  60 #ifdef HAVE_GLIB
  61     GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
  62     font_data = g_mapped_file_get_contents (mf);
  63     len = g_mapped_file_get_length (mf);
  64     destroy = (hb_destroy_func_t) g_mapped_file_unref;
  65     user_data = (void *) mf;
  66     mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
  67 #else
  68     FILE *f = fopen (argv[1], "rb");
  69     fseek (f, 0, SEEK_END);
  70     len = ftell (f);
  71     fseek (f, 0, SEEK_SET);
  72     font_data = (const char *) malloc (len);
  73     if (!font_data) len = 0;
  74     len = fread ((char *) font_data, 1, len, f);
  75     destroy = free;
  76     user_data = (void *) font_data;
  77     fclose (f);
  78     mm = HB_MEMORY_MODE_WRITABLE;
  79 #endif
  80
  81     blob = hb_blob_create (font_data, len, mm, user_data, destroy);
  82   }
  83
  84   hb_face_t *face = hb_face_create (blob, 0 /* first face */);
  85   hb_blob_destroy (blob);
  86   blob = NULL;
  87
  88   unsigned int upem = hb_face_get_upem (face);
  89   hb_font_t *font = hb_font_create (face);
  90   hb_face_destroy (face);
  91   hb_font_set_scale (font, upem, upem);
  92 #ifdef HAVE_FREETYPE
  93   hb_ft_font_set_funcs (font);
  94 #endif
  95
  96   hb_buffer_t *buf;
  97   buf = hb_buffer_create ();
  98
  99   bool ret = true;
 100   char line[BUFSIZ], out[BUFSIZ];
 101   while (fgets (line, sizeof(line), stdin) != 0)
 102   {
 103     hb_buffer_clear_contents (buf);
 104
 105     const char *p = line;
 106     while (hb_buffer_deserialize_glyphs (buf,
 107                                          p, -1, &p,
 108                                          font,
 109                                          HB_BUFFER_SERIALIZE_FORMAT_JSON))
 110       ;
 111     if (*p && *p != '\n')
 112       ret = false;
 113
 114     hb_buffer_serialize_glyphs (buf, 0, hb_buffer_get_length (buf),
 115                                 out, sizeof (out), NULL,
 116                                 font, HB_BUFFER_SERIALIZE_FORMAT_JSON,
 117                                 HB_BUFFER_SERIALIZE_FLAGS_DEFAULT);
 118     puts (out);
 119   }
 120
 121   hb_buffer_destroy (buf);
 122
 123   hb_font_destroy (font);
 124
 125   return !ret;
 126 }