michael@0: /*
michael@0:  * Copyright © 2010,2011  Google, Inc.
michael@0:  *
michael@0:  *  This is part of HarfBuzz, a text shaping library.
michael@0:  *
michael@0:  * Permission is hereby granted, without written agreement and without
michael@0:  * license or royalty fees, to use, copy, modify, and distribute this
michael@0:  * software and its documentation for any purpose, provided that the
michael@0:  * above copyright notice and the following two paragraphs appear in
michael@0:  * all copies of this software.
michael@0:  *
michael@0:  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
michael@0:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
michael@0:  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
michael@0:  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
michael@0:  * DAMAGE.
michael@0:  *
michael@0:  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
michael@0:  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
michael@0:  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
michael@0:  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
michael@0:  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
michael@0:  *
michael@0:  * Google Author(s): Behdad Esfahbod
michael@0:  */
michael@0: 
michael@0: #ifdef HAVE_CONFIG_H
michael@0: #include "config.h"
michael@0: #endif
michael@0: 
michael@0: #include "hb.h"
michael@0: 
michael@0: #ifdef HAVE_GLIB
michael@0: # include <glib.h>
michael@0: # if !GLIB_CHECK_VERSION (2, 22, 0)
michael@0: #  define g_mapped_file_unref g_mapped_file_free
michael@0: # endif
michael@0: #endif
michael@0: #include <stdlib.h>
michael@0: #include <stdio.h>
michael@0: 
michael@0: #ifdef HAVE_FREETYPE
michael@0: #include "hb-ft.h"
michael@0: #endif
michael@0: 
michael@0: int
michael@0: main (int argc, char **argv)
michael@0: {
michael@0:   hb_blob_t *blob = NULL;
michael@0: 
michael@0:   if (argc != 2) {
michael@0:     fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]);
michael@0:     exit (1);
michael@0:   }
michael@0: 
michael@0:   /* Create the blob */
michael@0:   {
michael@0:     const char *font_data;
michael@0:     unsigned int len;
michael@0:     hb_destroy_func_t destroy;
michael@0:     void *user_data;
michael@0:     hb_memory_mode_t mm;
michael@0: 
michael@0: #ifdef HAVE_GLIB
michael@0:     GMappedFile *mf = g_mapped_file_new (argv[1], false, NULL);
michael@0:     font_data = g_mapped_file_get_contents (mf);
michael@0:     len = g_mapped_file_get_length (mf);
michael@0:     destroy = (hb_destroy_func_t) g_mapped_file_unref;
michael@0:     user_data = (void *) mf;
michael@0:     mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE;
michael@0: #else
michael@0:     FILE *f = fopen (argv[1], "rb");
michael@0:     fseek (f, 0, SEEK_END);
michael@0:     len = ftell (f);
michael@0:     fseek (f, 0, SEEK_SET);
michael@0:     font_data = (const char *) malloc (len);
michael@0:     if (!font_data) len = 0;
michael@0:     len = fread ((char *) font_data, 1, len, f);
michael@0:     destroy = free;
michael@0:     user_data = (void *) font_data;
michael@0:     fclose (f);
michael@0:     mm = HB_MEMORY_MODE_WRITABLE;
michael@0: #endif
michael@0: 
michael@0:     blob = hb_blob_create (font_data, len, mm, user_data, destroy);
michael@0:   }
michael@0: 
michael@0:   printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob));
michael@0: 
michael@0:   /* Create the face */
michael@0:   hb_face_t *face = hb_face_create (blob, 0 /* first face */);
michael@0:   hb_blob_destroy (blob);
michael@0:   blob = NULL;
michael@0:   unsigned int upem = hb_face_get_upem (face);
michael@0: 
michael@0:   hb_font_t *font = hb_font_create (face);
michael@0:   hb_font_set_scale (font, upem, upem);
michael@0: 
michael@0: #ifdef HAVE_FREETYPE
michael@0:   hb_ft_font_set_funcs (font);
michael@0: #endif
michael@0: 
michael@0:   hb_buffer_t *buffer = hb_buffer_create ();
michael@0: 
michael@0:   hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1);
michael@0:   hb_buffer_guess_segment_properties (buffer);
michael@0: 
michael@0:   hb_shape (font, buffer, NULL, 0);
michael@0: 
michael@0:   unsigned int count = hb_buffer_get_length (buffer);
michael@0:   hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, NULL);
michael@0:   hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, NULL);
michael@0: 
michael@0:   for (unsigned int i = 0; i < count; i++)
michael@0:   {
michael@0:     hb_glyph_info_t *info = &infos[i];
michael@0:     hb_glyph_position_t *pos = &positions[i];
michael@0: 
michael@0:     printf ("cluster %d	glyph 0x%x at	(%d,%d)+(%d,%d)\n",
michael@0: 	    info->cluster,
michael@0: 	    info->codepoint,
michael@0: 	    pos->x_offset,
michael@0: 	    pos->x_offset,
michael@0: 	    pos->x_advance,
michael@0: 	    pos->y_advance);
michael@0: 
michael@0:   }
michael@0: 
michael@0:   hb_buffer_destroy (buffer);
michael@0:   hb_font_destroy (font);
michael@0:   hb_face_destroy (face);
michael@0: 
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: