85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
/*
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* Copyright © 2018 Ebrahim Byagowi
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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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#ifndef HB_OT_GASP_TABLE_HH
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#define HB_OT_GASP_TABLE_HH
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#include "hb-open-type.hh"
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#include "hb-ot-hhea-table.hh"
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#include "hb-ot-os2-table.hh"
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#include "hb-ot-var-hvar-table.hh"
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/*
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* gasp -- Grid-fitting and Scan-conversion Procedure
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* https://docs.microsoft.com/en-us/typography/opentype/spec/gasp
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*/
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#define HB_OT_TAG_gasp HB_TAG('g','a','s','p')
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namespace OT {
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struct GaspRange
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{
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bool sanitize (hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (c->check_struct (this));
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}
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public:
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HBUINT16 rangeMaxPPEM; /* Upper limit of range, in PPEM */
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HBUINT16 rangeGaspBehavior;
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/* Flags describing desired rasterizer behavior. */
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct gasp
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{
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static constexpr hb_tag_t tableTag = HB_OT_TAG_gasp;
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const GaspRange &get_gasp_range (unsigned int i) const
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{ return gaspRanges[i]; }
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bool sanitize (hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (c->check_struct (this) &&
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gaspRanges.sanitize (c));
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}
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protected:
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HBUINT16 version; /* Version number (set to 1) */
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Array16Of<GaspRange>
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gaspRanges; /* Number of records to follow
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* Sorted by ppem */
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public:
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DEFINE_SIZE_ARRAY (4, gaspRanges);
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};
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} /* namespace OT */
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#endif /* HB_OT_GASP_TABLE_HH */
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