/* * Copyright (C) 2009 Red Hat, Inc. * * This is part of HarfBuzz, an OpenType Layout engine 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.h" #include "hb-shape.h" #include "hb-buffer-private.h" static inline hb_bool_t is_variation_selector (hb_codepoint_t unicode) { return (unicode >= 0xFE00 && unicode <= 0xFE0F) || (unicode >= 0xE0100 && unicode <= 0xE01EF); } static void map_glyphs (hb_face_t *face, hb_font_t *font, hb_buffer_t *buffer) { unsigned int count; count = buffer->in_length - 1; for (buffer->in_pos = 0; buffer->in_pos < count; buffer->in_pos++) { if (HB_UNLIKELY (is_variation_selector (IN_NEXTGLYPH()))) { IN_CURGLYPH() = hb_font_get_glyph (face, font, IN_CURGLYPH(), IN_NEXTGLYPH()); buffer->in_pos++; } else { IN_CURGLYPH() = hb_font_get_glyph (face, font, IN_CURGLYPH(), 0); } } IN_CURGLYPH() = hb_font_get_glyph (face, font, IN_CURGLYPH(), 0); } void hb_shape (hb_face_t *face, hb_font_t *font, hb_buffer_t *buffer, hb_feature_t *features, unsigned int num_features) { /* form_clusters (buffer); */ /* do_mirroring (buffer); */ /* natural direction analysis */ /* OT preprocess */ map_glyphs (face, font, buffer); /* GSUB */ /* Default positioning */ /* GPOS / kern */ }