/* * Copyright © 2009 Red Hat, 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. * * Red Hat Author(s): Behdad Esfahbod */ #include "hb-private.hh" #include "hb-shape.h" #include "hb-buffer-private.hh" #include "hb-ot-shape.h" #ifdef HAVE_GRAPHITE #include "hb-graphite.h" #endif HB_BEGIN_DECLS static void hb_shape_internal (hb_font_t *font, hb_buffer_t *buffer, const hb_feature_t *features, unsigned int num_features) { hb_ot_shape (font, buffer, features, num_features); } void hb_shape (hb_font_t *font, hb_buffer_t *buffer, const hb_feature_t *features, unsigned int num_features) { hb_segment_properties_t orig_props; orig_props = buffer->props; /* If script is set to INVALID, guess from buffer contents */ if (buffer->props.script == HB_SCRIPT_INVALID) { hb_unicode_funcs_t *unicode = buffer->unicode; unsigned int count = buffer->len; for (unsigned int i = 0; i < count; i++) { hb_script_t script = unicode->get_script (buffer->info[i].codepoint); if (likely (script != HB_SCRIPT_COMMON && script != HB_SCRIPT_INHERITED && script != HB_SCRIPT_UNKNOWN)) { buffer->props.script = script; break; } } } /* If direction is set to INVALID, guess from script */ if (buffer->props.direction == HB_DIRECTION_INVALID) { buffer->props.direction = hb_script_get_horizontal_direction (buffer->props.script); } /* If language is not set, use default language from locale */ if (buffer->props.language == NULL) { /* TODO get_default_for_script? using $LANGUAGE */ buffer->props.language = hb_language_get_default (); } hb_shape_internal (font, buffer, features, num_features); buffer->props = orig_props; } HB_END_DECLS