2 * Copyright © 2018 Ebrahim Byagowi
4 * This is part of HarfBuzz, a text shaping library.
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.
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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25 #ifndef HB_AAT_LAYOUT_ANKR_TABLE_HH
26 #define HB_AAT_LAYOUT_ANKR_TABLE_HH
28 #include "hb-aat-layout-common.hh"
31 * ankr -- Anchor Point
32 * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6ankr.html
34 #define HB_AAT_TAG_ankr HB_TAG('a','n','k','r')
44 bool sanitize (hb_sanitize_context_t *c) const
46 TRACE_SANITIZE (this);
47 return_trace (c->check_struct (this));
54 DEFINE_SIZE_STATIC (4);
57 typedef LArrayOf<Anchor> GlyphAnchors;
61 static constexpr hb_tag_t tableTag = HB_AAT_TAG_ankr;
63 const Anchor &get_anchor (hb_codepoint_t glyph_id,
65 unsigned int num_glyphs) const
67 const NNOffsetTo<GlyphAnchors> *offset = (this+lookupTable).get_value (glyph_id, num_glyphs);
70 const GlyphAnchors &anchors = &(this+anchorData) + *offset;
74 bool sanitize (hb_sanitize_context_t *c) const
76 TRACE_SANITIZE (this);
77 return_trace (likely (c->check_struct (this) &&
79 c->check_range (this, anchorData) &&
80 lookupTable.sanitize (c, this, &(this+anchorData))));
84 HBUINT16 version; /* Version number (set to zero) */
85 HBUINT16 flags; /* Flags (currently unused; set to zero) */
86 LOffsetTo<Lookup<NNOffsetTo<GlyphAnchors> > >
87 lookupTable; /* Offset to the table's lookup table */
89 anchorData; /* Offset to the glyph data table */
92 DEFINE_SIZE_STATIC (12);
98 #endif /* HB_AAT_LAYOUT_ANKR_TABLE_HH */