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