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
main(int argc,char ** argv)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