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 # if !GLIB_CHECK_VERSION (2, 22, 0)
  39 #  define g_mapped_file_unref g_mapped_file_free
  40 # endif
  41 #endif
  42 #include <stdlib.h>
  43 #include <stdio.h>
  44
  45 int
  46 main (int argc, char **argv)
  47 {
  48   hb_blob_t *blob = NULL;
  49
  50   if (argc != 2) {
  51     fprintf (stderr, "usage: %s font-file\n", argv[0]);
  52     exit (1);
  53   }
  54
  55   /* Create the blob */
  56   {
  57     const char *font_data;
  58     unsigned int len;
  59     hb_destroy_func_t destroy;
  60     void *user_data;
  61     hb_memory_mode_t mm;
  62
  63 #ifdef HAVE_GLIB
  64     GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
  65     font_data = g_mapped_file_get_contents (mf);
  66     len = g_mapped_file_get_length (mf);
  67     destroy = (hb_destroy_func_t) g_mapped_file_unref;
  68     user_data = (void *) mf;
  69     mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
  70 #else
  71     FILE *f = fopen (argv[1], "rb");
  72     fseek (f, 0, SEEK_END);
  73     len = ftell (f);
  74     fseek (f, 0, SEEK_SET);
  75     font_data = (const char *) malloc (len);
  76     if (!font_data) len = 0;
  77     len = fread ((char *) font_data, 1, len, f);
  78     destroy = free;
  79     user_data = (void *) font_data;
  80     fclose (f);
  81     mm = HB_MEMORY_MODE_WRITABLE;
  82 #endif
  83
  84     blob = hb_blob_create (font_data, len, mm, user_data, destroy);
  85   }
  86
  87   hb_face_t *face = hb_face_create (blob, 0 /* first face */);
  88   hb_blob_destroy (blob);
  89   blob = NULL;
  90
  91   unsigned int upem = hb_face_get_upem (face);
  92   hb_font_t *font = hb_font_create (face);
  93   hb_face_destroy (face);
  94   hb_font_set_scale (font, upem, upem);
  95 #ifdef HAVE_FREETYPE
  96   hb_ft_font_set_funcs (font);
  97 #endif
  98
  99   hb_buffer_t *buf;
 100   buf = hb_buffer_create ();
 101
 102   bool ret = true;
 103   char line[BUFSIZ], out[BUFSIZ];
 104   while (fgets (line, sizeof(line), stdin) != 0)
 105   {
 106     hb_buffer_clear_contents (buf);
 107
 108     const char *p = line;
 109     while (hb_buffer_deserialize_glyphs (buf,
 110                                          p, -1, &p,
 111                                          font,
 112                                          HB_BUFFER_SERIALIZE_FORMAT_JSON))
 113       ;
 114     if (*p && *p != '\n')
 115       ret = false;
 116
 117     hb_buffer_serialize_glyphs (buf, 0, hb_buffer_get_length (buf),
 118                                 out, sizeof (out), NULL,
 119                                 font, HB_BUFFER_SERIALIZE_FORMAT_JSON,
 120                                 HB_BUFFER_SERIALIZE_FLAG_DEFAULT);
 121     puts (out);
 122   }
 123
 124   hb_buffer_destroy (buf);
 125
 126   hb_font_destroy (font);
 127
 128   return !ret;
 129 }