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/*
* Copyright © 2011 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb-fallback-shape-private.hh"
#include "hb-buffer-private.hh"
hb_bool_t
hb_fallback_shape (hb_font_t *font,
hb_buffer_t *buffer,
const hb_feature_t *features,
unsigned int num_features,
const char * const *shaper_options)
{
buffer->guess_properties ();
unsigned int count = buffer->len;
for (unsigned int i = 0; i < count; i++)
hb_font_get_glyph (font, buffer->info[i].codepoint, 0, &buffer->info[i].codepoint);
buffer->clear_positions ();
for (unsigned int i = 0; i < count; i++) {
hb_font_get_glyph_advance_for_direction (font, buffer->info[i].codepoint,
buffer->props.direction,
&buffer->pos[i].x_advance,
&buffer->pos[i].y_advance);
hb_font_subtract_glyph_origin_for_direction (font, buffer->info[i].codepoint,
buffer->props.direction,
&buffer->pos[i].x_offset,
&buffer->pos[i].y_offset);
}
if (HB_DIRECTION_IS_BACKWARD (buffer->props.direction))
hb_buffer_reverse (buffer);
return TRUE;
}
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