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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 # 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 }
    130