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      1 /*
      2  * Copyright  2010,2011  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 #include "hb.hh"
     28 
     29 #include "hb.h"
     30 
     31 #include <stdio.h>
     32 
     33 #ifdef HAVE_FREETYPE
     34 #include "hb-ft.h"
     35 #endif
     36 
     37 int
     38 main (int argc, char **argv)
     39 {
     40   if (argc != 2) {
     41     fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
     42     exit (1);
     43   }
     44 
     45   hb_blob_t *blob = hb_blob_create_from_file (argv[1]);
     46   printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob));
     47 
     48   /* Create the face */
     49   hb_face_t *face = hb_face_create (blob, 0 /* first face */);
     50   hb_blob_destroy (blob);
     51   blob = nullptr;
     52   unsigned int upem = hb_face_get_upem (face);
     53 
     54   hb_font_t *font = hb_font_create (face);
     55   hb_font_set_scale (font, upem, upem);
     56 
     57 #ifdef HAVE_FREETYPE
     58   hb_ft_font_set_funcs (font);
     59 #endif
     60 
     61   hb_buffer_t *buffer = hb_buffer_create ();
     62 
     63   hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1);
     64   hb_buffer_guess_segment_properties (buffer);
     65 
     66   hb_shape (font, buffer, nullptr, 0);
     67 
     68   unsigned int count = hb_buffer_get_length (buffer);
     69   hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, nullptr);
     70   hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, nullptr);
     71 
     72   for (unsigned int i = 0; i < count; i++)
     73   {
     74     hb_glyph_info_t *info = &infos[i];
     75     hb_glyph_position_t *pos = &positions[i];
     76 
     77     printf ("cluster %d	glyph 0x%x at	(%d,%d)+(%d,%d)\n",
     78 	    info->cluster,
     79 	    info->codepoint,
     80 	    pos->x_offset,
     81 	    pos->y_offset,
     82 	    pos->x_advance,
     83 	    pos->y_advance);
     84 
     85   }
     86 
     87   hb_buffer_destroy (buffer);
     88   hb_font_destroy (font);
     89   hb_face_destroy (face);
     90 
     91   return 0;
     92 }
     93 
     94 
     95