diff --git a/src/hb-ot-var-avar-table.hh b/src/hb-ot-var-avar-table.hh new file mode 100644 index 000000000..a041934bf --- /dev/null +++ b/src/hb-ot-var-avar-table.hh @@ -0,0 +1,99 @@ +/* + * Copyright © 2017 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 + */ + +#ifndef HB_OT_VAR_AVAR_TABLE_HH +#define HB_OT_VAR_AVAR_TABLE_HH + +#include "hb-open-type-private.hh" +#include "hb-ot-var.h" + +namespace OT { + + +struct AxisValueMap +{ + inline bool sanitize (hb_sanitize_context_t *c) const + { + TRACE_SANITIZE (this); + return_trace (c->check_struct (this)); + } + + public: + F2DOT14 fromCoord; /* A normalized coordinate value obtained using + * default normalization. */ + F2DOT14 toCoord; /* The modified, normalized coordinate value. */ + + public: + DEFINE_SIZE_STATIC (4); +}; + +typedef ArrayOf SegmentMaps; + +/* + * avar — Axis Variations Table + */ + +struct avar +{ + static const hb_tag_t tableTag = HB_OT_TAG_avar; + + inline bool sanitize (hb_sanitize_context_t *c) const + { + TRACE_SANITIZE (this); + if (unlikely (!(version.sanitize (c) && + version.major == 1 && + c->check_struct (this)))) + return_trace (false); + + const SegmentMaps *map = &axisSegmentMapsZ; + unsigned int count = axisCount; + for (unsigned int i = 0; i < count; i++) + { + if (unlikely (!map->sanitize (c))) + return_trace (false); + map = &StructAfter (*map); + } + + return_trace (true); + } + + protected: + FixedVersion<>version; /* Version of the avar table + * initially set to 0x00010000u */ + USHORT reserved; /* This field is permanently reserved. Set to 0. */ + USHORT axisCount; /* The number of variation axes in the font. This + * must be the same number as axisCount in the + * 'fvar' table. */ + SegmentMaps axisSegmentMapsZ; + + public: + DEFINE_SIZE_MIN (8); +}; + +} /* namespace OT */ + + +#endif /* HB_OT_VAR_AVAR_TABLE_HH */