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-private.hh" 28 29 #include "hb.h" 30 31 #ifdef HAVE_GLIB 32 # include <glib.h> 33 # if !GLIB_CHECK_VERSION (2, 22, 0) 34 # define g_mapped_file_unref g_mapped_file_free 35 # endif 36 #endif 37 #include <stdlib.h> 38 #include <stdio.h> 39 40 #ifdef HAVE_FREETYPE 41 #include "hb-ft.h" 42 #endif 43 44 int 45 main (int argc, char **argv) 46 { 47 hb_blob_t *blob = nullptr; 48 49 if (argc != 2) { 50 fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]); 51 exit (1); 52 } 53 54 /* Create the blob */ 55 { 56 const char *font_data; 57 unsigned int len; 58 hb_destroy_func_t destroy; 59 void *user_data; 60 hb_memory_mode_t mm; 61 62 #ifdef HAVE_GLIB 63 GMappedFile *mf = g_mapped_file_new (argv[1], false, nullptr); 64 font_data = g_mapped_file_get_contents (mf); 65 len = g_mapped_file_get_length (mf); 66 destroy = (hb_destroy_func_t) g_mapped_file_unref; 67 user_data = (void *) mf; 68 mm = HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE; 69 #else 70 FILE *f = fopen (argv[1], "rb"); 71 fseek (f, 0, SEEK_END); 72 len = ftell (f); 73 fseek (f, 0, SEEK_SET); 74 font_data = (const char *) malloc (len); 75 if (!font_data) len = 0; 76 len = fread ((char *) font_data, 1, len, f); 77 destroy = free; 78 user_data = (void *) font_data; 79 fclose (f); 80 mm = HB_MEMORY_MODE_WRITABLE; 81 #endif 82 83 blob = hb_blob_create (font_data, len, mm, user_data, destroy); 84 } 85 86 printf ("Opened font file %s: %u bytes long\n", argv[1], hb_blob_get_length (blob)); 87 88 /* Create the face */ 89 hb_face_t *face = hb_face_create (blob, 0 /* first face */); 90 hb_blob_destroy (blob); 91 blob = nullptr; 92 unsigned int upem = hb_face_get_upem (face); 93 94 hb_font_t *font = hb_font_create (face); 95 hb_font_set_scale (font, upem, upem); 96 97 #ifdef HAVE_FREETYPE 98 hb_ft_font_set_funcs (font); 99 #endif 100 101 hb_buffer_t *buffer = hb_buffer_create (); 102 103 hb_buffer_add_utf8 (buffer, "\xe0\xa4\x95\xe0\xa5\x8d\xe0\xa4\xb0\xe0\xa5\x8d\xe0\xa4\x95", -1, 0, -1); 104 hb_buffer_guess_segment_properties (buffer); 105 106 hb_shape (font, buffer, nullptr, 0); 107 108 unsigned int count = hb_buffer_get_length (buffer); 109 hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, nullptr); 110 hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, nullptr); 111 112 for (unsigned int i = 0; i < count; i++) 113 { 114 hb_glyph_info_t *info = &infos[i]; 115 hb_glyph_position_t *pos = &positions[i]; 116 117 printf ("cluster %d glyph 0x%x at (%d,%d)+(%d,%d)\n", 118 info->cluster, 119 info->codepoint, 120 pos->x_offset, 121 pos->y_offset, 122 pos->x_advance, 123 pos->y_advance); 124 125 } 126 127 hb_buffer_destroy (buffer); 128 hb_font_destroy (font); 129 hb_face_destroy (face); 130 131 return 0; 132 } 133 134 135
