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      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 }
    127