Move GDEF table to src/OT/Layout/GDEF
This commit is contained in:
Matthias Clasen
Behdad Esfahbod
parent
f89fa6dcfe
commit
e25e4c9a52
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@ -112,6 +112,7 @@ HB_BASE_sources = \
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OT/Layout/Common/CoverageFormat1.hh \
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OT/Layout/Common/CoverageFormat1.hh \
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OT/Layout/Common/CoverageFormat2.hh \
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OT/Layout/Common/CoverageFormat2.hh \
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OT/Layout/Common/RangeRecord.hh \
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OT/Layout/Common/RangeRecord.hh \
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OT/Layout/GDEF/GDEF.hh \
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OT/Layout/GPOS/AnchorFormat1.hh \
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OT/Layout/GPOS/AnchorFormat1.hh \
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OT/Layout/GPOS/AnchorFormat2.hh \
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OT/Layout/GPOS/AnchorFormat2.hh \
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OT/Layout/GPOS/AnchorFormat3.hh \
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OT/Layout/GPOS/AnchorFormat3.hh \
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@ -0,0 +1,918 @@
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/*
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* Copyright © 2007,2008,2009 Red Hat, Inc.
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* Copyright © 2010,2011,2012 Google, Inc.
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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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* Red Hat Author(s): Behdad Esfahbod
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* Google Author(s): Behdad Esfahbod
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*/
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#ifndef OT_LAYOUT_GDEF_GDEF_HH
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#define OT_LAYOUT_GDEF_GDEF_HH
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#include "hb-ot-layout-common.hh"
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#include "hb-font.hh"
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namespace OT {
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/*
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* Attachment List Table
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*/
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/* Array of contour point indices--in increasing numerical order */
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struct AttachPoint : Array16Of<HBUINT16>
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{
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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auto *out = c->serializer->start_embed (*this);
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if (unlikely (!out)) return_trace (false);
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return_trace (out->serialize (c->serializer, + iter ()));
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}
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};
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struct AttachList
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{
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unsigned int get_attach_points (hb_codepoint_t glyph_id,
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unsigned int start_offset,
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unsigned int *point_count /* IN/OUT */,
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unsigned int *point_array /* OUT */) const
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{
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unsigned int index = (this+coverage).get_coverage (glyph_id);
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if (index == NOT_COVERED)
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{
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if (point_count)
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*point_count = 0;
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return 0;
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}
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const AttachPoint &points = this+attachPoint[index];
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if (point_count)
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{
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+ points.as_array ().sub_array (start_offset, point_count)
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| hb_sink (hb_array (point_array, *point_count))
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;
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}
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return points.len;
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}
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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const hb_set_t &glyphset = *c->plan->glyphset_gsub ();
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const hb_map_t &glyph_map = *c->plan->glyph_map;
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auto *out = c->serializer->start_embed (*this);
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if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
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hb_sorted_vector_t<hb_codepoint_t> new_coverage;
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+ hb_zip (this+coverage, attachPoint)
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| hb_filter (glyphset, hb_first)
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| hb_filter (subset_offset_array (c, out->attachPoint, this), hb_second)
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| hb_map (hb_first)
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| hb_map (glyph_map)
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| hb_sink (new_coverage)
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;
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out->coverage.serialize_serialize (c->serializer, new_coverage.iter ());
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return_trace (bool (new_coverage));
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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 (coverage.sanitize (c, this) && attachPoint.sanitize (c, this));
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}
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protected:
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Offset16To<Coverage>
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coverage; /* Offset to Coverage table -- from
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* beginning of AttachList table */
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Array16OfOffset16To<AttachPoint>
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attachPoint; /* Array of AttachPoint tables
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* in Coverage Index order */
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public:
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DEFINE_SIZE_ARRAY (4, attachPoint);
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};
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/*
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* Ligature Caret Table
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*/
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struct CaretValueFormat1
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{
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friend struct CaretValue;
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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auto *out = c->serializer->embed (this);
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if (unlikely (!out)) return_trace (false);
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return_trace (true);
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}
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private:
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hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction) const
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{
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return HB_DIRECTION_IS_HORIZONTAL (direction) ? font->em_scale_x (coordinate) : font->em_scale_y (coordinate);
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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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protected:
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HBUINT16 caretValueFormat; /* Format identifier--format = 1 */
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FWORD coordinate; /* X or Y value, in design units */
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct CaretValueFormat2
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{
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friend struct CaretValue;
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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auto *out = c->serializer->embed (this);
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if (unlikely (!out)) return_trace (false);
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return_trace (true);
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}
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private:
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hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction, hb_codepoint_t glyph_id) const
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{
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hb_position_t x, y;
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font->get_glyph_contour_point_for_origin (glyph_id, caretValuePoint, direction, &x, &y);
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return HB_DIRECTION_IS_HORIZONTAL (direction) ? x : y;
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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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protected:
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HBUINT16 caretValueFormat; /* Format identifier--format = 2 */
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HBUINT16 caretValuePoint; /* Contour point index on glyph */
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct CaretValueFormat3
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{
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friend struct CaretValue;
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hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction,
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const VariationStore &var_store) const
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{
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return HB_DIRECTION_IS_HORIZONTAL (direction) ?
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font->em_scale_x (coordinate) + (this+deviceTable).get_x_delta (font, var_store) :
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font->em_scale_y (coordinate) + (this+deviceTable).get_y_delta (font, var_store);
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}
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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auto *out = c->serializer->start_embed (*this);
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if (unlikely (!out)) return_trace (false);
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if (!c->serializer->embed (caretValueFormat)) return_trace (false);
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if (!c->serializer->embed (coordinate)) return_trace (false);
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unsigned varidx = (this+deviceTable).get_variation_index ();
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if (c->plan->layout_variation_idx_delta_map.has (varidx))
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{
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int delta = hb_second (c->plan->layout_variation_idx_delta_map.get (varidx));
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if (delta != 0)
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{
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if (!c->serializer->check_assign (out->coordinate, coordinate + delta, HB_SERIALIZE_ERROR_INT_OVERFLOW))
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return_trace (false);
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}
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}
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if (c->plan->all_axes_pinned)
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return_trace (c->serializer->check_assign (out->caretValueFormat, 1, HB_SERIALIZE_ERROR_INT_OVERFLOW));
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if (!c->serializer->embed (deviceTable))
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return_trace (false);
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return_trace (out->deviceTable.serialize_copy (c->serializer, deviceTable, this, c->serializer->to_bias (out),
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hb_serialize_context_t::Head, &c->plan->layout_variation_idx_delta_map));
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}
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void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
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{ (this+deviceTable).collect_variation_indices (c); }
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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) && deviceTable.sanitize (c, this));
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}
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protected:
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HBUINT16 caretValueFormat; /* Format identifier--format = 3 */
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FWORD coordinate; /* X or Y value, in design units */
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Offset16To<Device>
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deviceTable; /* Offset to Device table for X or Y
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* value--from beginning of CaretValue
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* table */
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public:
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DEFINE_SIZE_STATIC (6);
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};
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struct CaretValue
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{
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hb_position_t get_caret_value (hb_font_t *font,
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hb_direction_t direction,
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hb_codepoint_t glyph_id,
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const VariationStore &var_store) const
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{
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switch (u.format) {
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case 1: return u.format1.get_caret_value (font, direction);
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case 2: return u.format2.get_caret_value (font, direction, glyph_id);
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case 3: return u.format3.get_caret_value (font, direction, var_store);
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default:return 0;
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}
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}
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template <typename context_t, typename ...Ts>
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typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const
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{
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if (unlikely (!c->may_dispatch (this, &u.format))) return c->no_dispatch_return_value ();
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TRACE_DISPATCH (this, u.format);
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switch (u.format) {
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case 1: return_trace (c->dispatch (u.format1, std::forward<Ts> (ds)...));
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case 2: return_trace (c->dispatch (u.format2, std::forward<Ts> (ds)...));
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case 3: return_trace (c->dispatch (u.format3, std::forward<Ts> (ds)...));
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default:return_trace (c->default_return_value ());
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}
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}
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void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
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{
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switch (u.format) {
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case 1:
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case 2:
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return;
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case 3:
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u.format3.collect_variation_indices (c);
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return;
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default: return;
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}
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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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if (!u.format.sanitize (c)) return_trace (false);
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switch (u.format) {
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case 1: return_trace (u.format1.sanitize (c));
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case 2: return_trace (u.format2.sanitize (c));
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case 3: return_trace (u.format3.sanitize (c));
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default:return_trace (true);
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}
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}
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protected:
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union {
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HBUINT16 format; /* Format identifier */
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CaretValueFormat1 format1;
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CaretValueFormat2 format2;
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CaretValueFormat3 format3;
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} u;
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public:
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DEFINE_SIZE_UNION (2, format);
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};
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struct LigGlyph
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{
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unsigned get_lig_carets (hb_font_t *font,
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hb_direction_t direction,
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hb_codepoint_t glyph_id,
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const VariationStore &var_store,
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unsigned start_offset,
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unsigned *caret_count /* IN/OUT */,
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hb_position_t *caret_array /* OUT */) const
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{
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if (caret_count)
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{
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+ carets.as_array ().sub_array (start_offset, caret_count)
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| hb_map (hb_add (this))
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| hb_map ([&] (const CaretValue &value) { return value.get_caret_value (font, direction, glyph_id, var_store); })
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| hb_sink (hb_array (caret_array, *caret_count))
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;
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}
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return carets.len;
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}
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bool subset (hb_subset_context_t *c) const
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{
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TRACE_SUBSET (this);
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auto *out = c->serializer->start_embed (*this);
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if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
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+ hb_iter (carets)
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| hb_apply (subset_offset_array (c, out->carets, this))
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;
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return_trace (bool (out->carets));
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}
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void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
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{
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for (const Offset16To<CaretValue>& offset : carets.iter ())
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(this+offset).collect_variation_indices (c);
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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 (carets.sanitize (c, this));
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}
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protected:
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Array16OfOffset16To<CaretValue>
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carets; /* Offset array of CaretValue tables
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* --from beginning of LigGlyph table
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* --in increasing coordinate order */
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public:
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DEFINE_SIZE_ARRAY (2, carets);
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};
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|
|
||||||
|
struct LigCaretList
|
||||||
|
{
|
||||||
|
unsigned int get_lig_carets (hb_font_t *font,
|
||||||
|
hb_direction_t direction,
|
||||||
|
hb_codepoint_t glyph_id,
|
||||||
|
const VariationStore &var_store,
|
||||||
|
unsigned int start_offset,
|
||||||
|
unsigned int *caret_count /* IN/OUT */,
|
||||||
|
hb_position_t *caret_array /* OUT */) const
|
||||||
|
{
|
||||||
|
unsigned int index = (this+coverage).get_coverage (glyph_id);
|
||||||
|
if (index == NOT_COVERED)
|
||||||
|
{
|
||||||
|
if (caret_count)
|
||||||
|
*caret_count = 0;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
const LigGlyph &lig_glyph = this+ligGlyph[index];
|
||||||
|
return lig_glyph.get_lig_carets (font, direction, glyph_id, var_store, start_offset, caret_count, caret_array);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool subset (hb_subset_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SUBSET (this);
|
||||||
|
const hb_set_t &glyphset = *c->plan->glyphset_gsub ();
|
||||||
|
const hb_map_t &glyph_map = *c->plan->glyph_map;
|
||||||
|
|
||||||
|
auto *out = c->serializer->start_embed (*this);
|
||||||
|
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
||||||
|
|
||||||
|
hb_sorted_vector_t<hb_codepoint_t> new_coverage;
|
||||||
|
+ hb_zip (this+coverage, ligGlyph)
|
||||||
|
| hb_filter (glyphset, hb_first)
|
||||||
|
| hb_filter (subset_offset_array (c, out->ligGlyph, this), hb_second)
|
||||||
|
| hb_map (hb_first)
|
||||||
|
| hb_map (glyph_map)
|
||||||
|
| hb_sink (new_coverage)
|
||||||
|
;
|
||||||
|
out->coverage.serialize_serialize (c->serializer, new_coverage.iter ());
|
||||||
|
return_trace (bool (new_coverage));
|
||||||
|
}
|
||||||
|
|
||||||
|
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
||||||
|
{
|
||||||
|
+ hb_zip (this+coverage, ligGlyph)
|
||||||
|
| hb_filter (c->glyph_set, hb_first)
|
||||||
|
| hb_map (hb_second)
|
||||||
|
| hb_map (hb_add (this))
|
||||||
|
| hb_apply ([c] (const LigGlyph& _) { _.collect_variation_indices (c); })
|
||||||
|
;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sanitize (hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
return_trace (coverage.sanitize (c, this) && ligGlyph.sanitize (c, this));
|
||||||
|
}
|
||||||
|
|
||||||
|
protected:
|
||||||
|
Offset16To<Coverage>
|
||||||
|
coverage; /* Offset to Coverage table--from
|
||||||
|
* beginning of LigCaretList table */
|
||||||
|
Array16OfOffset16To<LigGlyph>
|
||||||
|
ligGlyph; /* Array of LigGlyph tables
|
||||||
|
* in Coverage Index order */
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_ARRAY (4, ligGlyph);
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
struct MarkGlyphSetsFormat1
|
||||||
|
{
|
||||||
|
bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
||||||
|
{ return (this+coverage[set_index]).get_coverage (glyph_id) != NOT_COVERED; }
|
||||||
|
|
||||||
|
bool subset (hb_subset_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SUBSET (this);
|
||||||
|
auto *out = c->serializer->start_embed (*this);
|
||||||
|
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
||||||
|
out->format = format;
|
||||||
|
|
||||||
|
bool ret = true;
|
||||||
|
for (const Offset32To<Coverage>& offset : coverage.iter ())
|
||||||
|
{
|
||||||
|
auto *o = out->coverage.serialize_append (c->serializer);
|
||||||
|
if (unlikely (!o))
|
||||||
|
{
|
||||||
|
ret = false;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
//not using o->serialize_subset (c, offset, this, out) here because
|
||||||
|
//OTS doesn't allow null offset.
|
||||||
|
//See issue: https://github.com/khaledhosny/ots/issues/172
|
||||||
|
c->serializer->push ();
|
||||||
|
c->dispatch (this+offset);
|
||||||
|
c->serializer->add_link (*o, c->serializer->pop_pack ());
|
||||||
|
}
|
||||||
|
|
||||||
|
return_trace (ret && out->coverage.len);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sanitize (hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
return_trace (coverage.sanitize (c, this));
|
||||||
|
}
|
||||||
|
|
||||||
|
protected:
|
||||||
|
HBUINT16 format; /* Format identifier--format = 1 */
|
||||||
|
Array16Of<Offset32To<Coverage>>
|
||||||
|
coverage; /* Array of long offsets to mark set
|
||||||
|
* coverage tables */
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_ARRAY (4, coverage);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct MarkGlyphSets
|
||||||
|
{
|
||||||
|
bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
||||||
|
{
|
||||||
|
switch (u.format) {
|
||||||
|
case 1: return u.format1.covers (set_index, glyph_id);
|
||||||
|
default:return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool subset (hb_subset_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SUBSET (this);
|
||||||
|
switch (u.format) {
|
||||||
|
case 1: return_trace (u.format1.subset (c));
|
||||||
|
default:return_trace (false);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sanitize (hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
if (!u.format.sanitize (c)) return_trace (false);
|
||||||
|
switch (u.format) {
|
||||||
|
case 1: return_trace (u.format1.sanitize (c));
|
||||||
|
default:return_trace (true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
protected:
|
||||||
|
union {
|
||||||
|
HBUINT16 format; /* Format identifier */
|
||||||
|
MarkGlyphSetsFormat1 format1;
|
||||||
|
} u;
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_UNION (2, format);
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* GDEF -- Glyph Definition
|
||||||
|
* https://docs.microsoft.com/en-us/typography/opentype/spec/gdef
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
template <typename Types>
|
||||||
|
struct GDEFVersion1_2
|
||||||
|
{
|
||||||
|
friend struct GDEF;
|
||||||
|
|
||||||
|
protected:
|
||||||
|
FixedVersion<>version; /* Version of the GDEF table--currently
|
||||||
|
* 0x00010003u */
|
||||||
|
typename Types::template OffsetTo<ClassDef>
|
||||||
|
glyphClassDef; /* Offset to class definition table
|
||||||
|
* for glyph type--from beginning of
|
||||||
|
* GDEF header (may be Null) */
|
||||||
|
typename Types::template OffsetTo<AttachList>
|
||||||
|
attachList; /* Offset to list of glyphs with
|
||||||
|
* attachment points--from beginning
|
||||||
|
* of GDEF header (may be Null) */
|
||||||
|
typename Types::template OffsetTo<LigCaretList>
|
||||||
|
ligCaretList; /* Offset to list of positioning points
|
||||||
|
* for ligature carets--from beginning
|
||||||
|
* of GDEF header (may be Null) */
|
||||||
|
typename Types::template OffsetTo<ClassDef>
|
||||||
|
markAttachClassDef; /* Offset to class definition table for
|
||||||
|
* mark attachment type--from beginning
|
||||||
|
* of GDEF header (may be Null) */
|
||||||
|
typename Types::template OffsetTo<MarkGlyphSets>
|
||||||
|
markGlyphSetsDef; /* Offset to the table of mark set
|
||||||
|
* definitions--from beginning of GDEF
|
||||||
|
* header (may be NULL). Introduced
|
||||||
|
* in version 0x00010002. */
|
||||||
|
Offset32To<VariationStore>
|
||||||
|
varStore; /* Offset to the table of Item Variation
|
||||||
|
* Store--from beginning of GDEF
|
||||||
|
* header (may be NULL). Introduced
|
||||||
|
* in version 0x00010003. */
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_MIN (4 + 4 * Types::size);
|
||||||
|
|
||||||
|
unsigned int get_size () const
|
||||||
|
{
|
||||||
|
return min_size +
|
||||||
|
(version.to_int () >= 0x00010002u ? markGlyphSetsDef.static_size : 0) +
|
||||||
|
(version.to_int () >= 0x00010003u ? varStore.static_size : 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sanitize (hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
return_trace (version.sanitize (c) &&
|
||||||
|
glyphClassDef.sanitize (c, this) &&
|
||||||
|
attachList.sanitize (c, this) &&
|
||||||
|
ligCaretList.sanitize (c, this) &&
|
||||||
|
markAttachClassDef.sanitize (c, this) &&
|
||||||
|
(version.to_int () < 0x00010002u || markGlyphSetsDef.sanitize (c, this)) &&
|
||||||
|
(version.to_int () < 0x00010003u || varStore.sanitize (c, this)));
|
||||||
|
}
|
||||||
|
|
||||||
|
bool subset (hb_subset_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SUBSET (this);
|
||||||
|
auto *out = c->serializer->embed (*this);
|
||||||
|
if (unlikely (!out)) return_trace (false);
|
||||||
|
|
||||||
|
bool subset_glyphclassdef = out->glyphClassDef.serialize_subset (c, glyphClassDef, this, nullptr, false, true);
|
||||||
|
bool subset_attachlist = out->attachList.serialize_subset (c, attachList, this);
|
||||||
|
bool subset_ligcaretlist = out->ligCaretList.serialize_subset (c, ligCaretList, this);
|
||||||
|
bool subset_markattachclassdef = out->markAttachClassDef.serialize_subset (c, markAttachClassDef, this, nullptr, false, true);
|
||||||
|
|
||||||
|
bool subset_markglyphsetsdef = false;
|
||||||
|
if (version.to_int () >= 0x00010002u)
|
||||||
|
{
|
||||||
|
subset_markglyphsetsdef = out->markGlyphSetsDef.serialize_subset (c, markGlyphSetsDef, this);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool subset_varstore = false;
|
||||||
|
if (version.to_int () >= 0x00010003u)
|
||||||
|
{
|
||||||
|
if (c->plan->all_axes_pinned)
|
||||||
|
out->varStore = 0;
|
||||||
|
else
|
||||||
|
subset_varstore = out->varStore.serialize_subset (c, varStore, this, c->plan->gdef_varstore_inner_maps.as_array ());
|
||||||
|
}
|
||||||
|
|
||||||
|
if (subset_varstore)
|
||||||
|
{
|
||||||
|
out->version.minor = 3;
|
||||||
|
} else if (subset_markglyphsetsdef) {
|
||||||
|
out->version.minor = 2;
|
||||||
|
} else {
|
||||||
|
out->version.minor = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return_trace (subset_glyphclassdef || subset_attachlist ||
|
||||||
|
subset_ligcaretlist || subset_markattachclassdef ||
|
||||||
|
(out->version.to_int () >= 0x00010002u && subset_markglyphsetsdef) ||
|
||||||
|
(out->version.to_int () >= 0x00010003u && subset_varstore));
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
struct GDEF
|
||||||
|
{
|
||||||
|
static constexpr hb_tag_t tableTag = HB_OT_TAG_GDEF;
|
||||||
|
|
||||||
|
enum GlyphClasses {
|
||||||
|
UnclassifiedGlyph = 0,
|
||||||
|
BaseGlyph = 1,
|
||||||
|
LigatureGlyph = 2,
|
||||||
|
MarkGlyph = 3,
|
||||||
|
ComponentGlyph = 4
|
||||||
|
};
|
||||||
|
|
||||||
|
unsigned int get_size () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.get_size ();
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.get_size ();
|
||||||
|
#endif
|
||||||
|
default: return u.version.static_size;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sanitize (hb_sanitize_context_t *c) const
|
||||||
|
{
|
||||||
|
TRACE_SANITIZE (this);
|
||||||
|
if (unlikely (!u.version.sanitize (c))) return_trace (false);
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return_trace (u.version1.sanitize (c));
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return_trace (u.version2.sanitize (c));
|
||||||
|
#endif
|
||||||
|
default: return_trace (true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool subset (hb_subset_context_t *c) const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.subset (c);
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.subset (c);
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool has_glyph_classes () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.glyphClassDef != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.glyphClassDef != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const ClassDef &get_glyph_class_def () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return this+u.version1.glyphClassDef;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.glyphClassDef;
|
||||||
|
#endif
|
||||||
|
default: return Null(ClassDef);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bool has_attach_list () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.attachList != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.attachList != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const AttachList &get_attach_list () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return this+u.version1.attachList;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.attachList;
|
||||||
|
#endif
|
||||||
|
default: return Null(AttachList);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bool has_lig_carets () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.ligCaretList != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.ligCaretList != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const LigCaretList &get_lig_caret_list () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return this+u.version1.ligCaretList;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.ligCaretList;
|
||||||
|
#endif
|
||||||
|
default: return Null(LigCaretList);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bool has_mark_attachment_types () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version1.markAttachClassDef != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.markAttachClassDef != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const ClassDef &get_mark_attach_class_def () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return this+u.version1.markAttachClassDef;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.markAttachClassDef;
|
||||||
|
#endif
|
||||||
|
default: return Null(ClassDef);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bool has_mark_glyph_sets () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version.to_int () >= 0x00010002u && u.version1.markGlyphSetsDef != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.markGlyphSetsDef != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const MarkGlyphSets &get_mark_glyph_sets () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version.to_int () >= 0x00010002u ? this+u.version1.markGlyphSetsDef : Null(MarkGlyphSets);
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.markGlyphSetsDef;
|
||||||
|
#endif
|
||||||
|
default: return Null(MarkGlyphSets);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
bool has_var_store () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version.to_int () >= 0x00010003u && u.version1.varStore != 0;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return u.version2.varStore != 0;
|
||||||
|
#endif
|
||||||
|
default: return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
const VariationStore &get_var_store () const
|
||||||
|
{
|
||||||
|
switch (u.version.major) {
|
||||||
|
case 1: return u.version.to_int () >= 0x00010003u ? this+u.version1.varStore : Null(VariationStore);
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
case 2: return this+u.version2.varStore;
|
||||||
|
#endif
|
||||||
|
default: return Null(VariationStore);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
bool has_data () const { return u.version.to_int (); }
|
||||||
|
unsigned int get_glyph_class (hb_codepoint_t glyph) const
|
||||||
|
{ return get_glyph_class_def ().get_class (glyph); }
|
||||||
|
void get_glyphs_in_class (unsigned int klass, hb_set_t *glyphs) const
|
||||||
|
{ get_glyph_class_def ().collect_class (glyphs, klass); }
|
||||||
|
|
||||||
|
unsigned int get_mark_attachment_type (hb_codepoint_t glyph) const
|
||||||
|
{ return get_mark_attach_class_def ().get_class (glyph); }
|
||||||
|
|
||||||
|
unsigned int get_attach_points (hb_codepoint_t glyph_id,
|
||||||
|
unsigned int start_offset,
|
||||||
|
unsigned int *point_count /* IN/OUT */,
|
||||||
|
unsigned int *point_array /* OUT */) const
|
||||||
|
{ return get_attach_list ().get_attach_points (glyph_id, start_offset, point_count, point_array); }
|
||||||
|
|
||||||
|
unsigned int get_lig_carets (hb_font_t *font,
|
||||||
|
hb_direction_t direction,
|
||||||
|
hb_codepoint_t glyph_id,
|
||||||
|
unsigned int start_offset,
|
||||||
|
unsigned int *caret_count /* IN/OUT */,
|
||||||
|
hb_position_t *caret_array /* OUT */) const
|
||||||
|
{ return get_lig_caret_list ().get_lig_carets (font,
|
||||||
|
direction, glyph_id, get_var_store(),
|
||||||
|
start_offset, caret_count, caret_array); }
|
||||||
|
|
||||||
|
bool mark_set_covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
||||||
|
{ return get_mark_glyph_sets ().covers (set_index, glyph_id); }
|
||||||
|
|
||||||
|
/* glyph_props is a 16-bit integer where the lower 8-bit have bits representing
|
||||||
|
* glyph class and other bits, and high 8-bit the mark attachment type (if any).
|
||||||
|
* Not to be confused with lookup_props which is very similar. */
|
||||||
|
unsigned int get_glyph_props (hb_codepoint_t glyph) const
|
||||||
|
{
|
||||||
|
unsigned int klass = get_glyph_class (glyph);
|
||||||
|
|
||||||
|
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH == (unsigned int) LookupFlag::IgnoreBaseGlyphs), "");
|
||||||
|
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE == (unsigned int) LookupFlag::IgnoreLigatures), "");
|
||||||
|
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_MARK == (unsigned int) LookupFlag::IgnoreMarks), "");
|
||||||
|
|
||||||
|
switch (klass) {
|
||||||
|
default: return HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED;
|
||||||
|
case BaseGlyph: return HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH;
|
||||||
|
case LigatureGlyph: return HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE;
|
||||||
|
case MarkGlyph:
|
||||||
|
klass = get_mark_attachment_type (glyph);
|
||||||
|
return HB_OT_LAYOUT_GLYPH_PROPS_MARK | (klass << 8);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
HB_INTERNAL bool is_blocklisted (hb_blob_t *blob,
|
||||||
|
hb_face_t *face) const;
|
||||||
|
|
||||||
|
struct accelerator_t
|
||||||
|
{
|
||||||
|
accelerator_t (hb_face_t *face)
|
||||||
|
{
|
||||||
|
table = hb_sanitize_context_t ().reference_table<GDEF> (face);
|
||||||
|
if (unlikely (table->is_blocklisted (table.get_blob (), face)))
|
||||||
|
{
|
||||||
|
hb_blob_destroy (table.get_blob ());
|
||||||
|
table = hb_blob_get_empty ();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
~accelerator_t () { table.destroy (); }
|
||||||
|
|
||||||
|
hb_blob_ptr_t<GDEF> table;
|
||||||
|
};
|
||||||
|
|
||||||
|
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
||||||
|
{ get_lig_caret_list ().collect_variation_indices (c); }
|
||||||
|
|
||||||
|
void remap_layout_variation_indices (const hb_set_t *layout_variation_indices,
|
||||||
|
hb_hashmap_t<unsigned, hb_pair_t<unsigned, int>> *layout_variation_idx_delta_map /* OUT */) const
|
||||||
|
{
|
||||||
|
if (!has_var_store ()) return;
|
||||||
|
if (layout_variation_indices->is_empty ()) return;
|
||||||
|
|
||||||
|
unsigned new_major = 0, new_minor = 0;
|
||||||
|
unsigned last_major = (layout_variation_indices->get_min ()) >> 16;
|
||||||
|
for (unsigned idx : layout_variation_indices->iter ())
|
||||||
|
{
|
||||||
|
uint16_t major = idx >> 16;
|
||||||
|
if (major >= get_var_store ().get_sub_table_count ()) break;
|
||||||
|
if (major != last_major)
|
||||||
|
{
|
||||||
|
new_minor = 0;
|
||||||
|
++new_major;
|
||||||
|
}
|
||||||
|
|
||||||
|
unsigned new_idx = (new_major << 16) + new_minor;
|
||||||
|
if (!layout_variation_idx_delta_map->has (idx))
|
||||||
|
continue;
|
||||||
|
int delta = hb_second (layout_variation_idx_delta_map->get (idx));
|
||||||
|
|
||||||
|
layout_variation_idx_delta_map->set (idx, hb_pair_t<unsigned, int> (new_idx, delta));
|
||||||
|
++new_minor;
|
||||||
|
last_major = major;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
protected:
|
||||||
|
union {
|
||||||
|
FixedVersion<> version; /* Version identifier */
|
||||||
|
GDEFVersion1_2<SmallTypes> version1;
|
||||||
|
#ifndef HB_NO_BEYOND_64K
|
||||||
|
GDEFVersion1_2<MediumTypes> version2;
|
||||||
|
#endif
|
||||||
|
} u;
|
||||||
|
public:
|
||||||
|
DEFINE_SIZE_MIN (4);
|
||||||
|
};
|
||||||
|
|
||||||
|
struct GDEF_accelerator_t : GDEF::accelerator_t {
|
||||||
|
GDEF_accelerator_t (hb_face_t *face) : GDEF::accelerator_t (face) {}
|
||||||
|
};
|
||||||
|
|
||||||
|
} /* namespace OT */
|
||||||
|
|
||||||
|
|
||||||
|
#endif /* OT_LAYOUT_GDEF_GDEF_HH */
|
||||||
|
|
@ -29,890 +29,6 @@
|
||||||
#ifndef HB_OT_LAYOUT_GDEF_TABLE_HH
|
#ifndef HB_OT_LAYOUT_GDEF_TABLE_HH
|
||||||
#define HB_OT_LAYOUT_GDEF_TABLE_HH
|
#define HB_OT_LAYOUT_GDEF_TABLE_HH
|
||||||
|
|
||||||
#include "hb-ot-layout-common.hh"
|
#include "OT/Layout/GDEF/GDEF.hh"
|
||||||
|
|
||||||
#include "hb-font.hh"
|
|
||||||
|
|
||||||
|
|
||||||
namespace OT {
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Attachment List Table
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* Array of contour point indices--in increasing numerical order */
|
|
||||||
struct AttachPoint : Array16Of<HBUINT16>
|
|
||||||
{
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!out)) return_trace (false);
|
|
||||||
|
|
||||||
return_trace (out->serialize (c->serializer, + iter ()));
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
struct AttachList
|
|
||||||
{
|
|
||||||
unsigned int get_attach_points (hb_codepoint_t glyph_id,
|
|
||||||
unsigned int start_offset,
|
|
||||||
unsigned int *point_count /* IN/OUT */,
|
|
||||||
unsigned int *point_array /* OUT */) const
|
|
||||||
{
|
|
||||||
unsigned int index = (this+coverage).get_coverage (glyph_id);
|
|
||||||
if (index == NOT_COVERED)
|
|
||||||
{
|
|
||||||
if (point_count)
|
|
||||||
*point_count = 0;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
const AttachPoint &points = this+attachPoint[index];
|
|
||||||
|
|
||||||
if (point_count)
|
|
||||||
{
|
|
||||||
+ points.as_array ().sub_array (start_offset, point_count)
|
|
||||||
| hb_sink (hb_array (point_array, *point_count))
|
|
||||||
;
|
|
||||||
}
|
|
||||||
|
|
||||||
return points.len;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
const hb_set_t &glyphset = *c->plan->glyphset_gsub ();
|
|
||||||
const hb_map_t &glyph_map = *c->plan->glyph_map;
|
|
||||||
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
|
||||||
|
|
||||||
hb_sorted_vector_t<hb_codepoint_t> new_coverage;
|
|
||||||
+ hb_zip (this+coverage, attachPoint)
|
|
||||||
| hb_filter (glyphset, hb_first)
|
|
||||||
| hb_filter (subset_offset_array (c, out->attachPoint, this), hb_second)
|
|
||||||
| hb_map (hb_first)
|
|
||||||
| hb_map (glyph_map)
|
|
||||||
| hb_sink (new_coverage)
|
|
||||||
;
|
|
||||||
out->coverage.serialize_serialize (c->serializer, new_coverage.iter ());
|
|
||||||
return_trace (bool (new_coverage));
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (coverage.sanitize (c, this) && attachPoint.sanitize (c, this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
Offset16To<Coverage>
|
|
||||||
coverage; /* Offset to Coverage table -- from
|
|
||||||
* beginning of AttachList table */
|
|
||||||
Array16OfOffset16To<AttachPoint>
|
|
||||||
attachPoint; /* Array of AttachPoint tables
|
|
||||||
* in Coverage Index order */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_ARRAY (4, attachPoint);
|
|
||||||
};
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Ligature Caret Table
|
|
||||||
*/
|
|
||||||
|
|
||||||
struct CaretValueFormat1
|
|
||||||
{
|
|
||||||
friend struct CaretValue;
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->embed (this);
|
|
||||||
if (unlikely (!out)) return_trace (false);
|
|
||||||
return_trace (true);
|
|
||||||
}
|
|
||||||
|
|
||||||
private:
|
|
||||||
hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction) const
|
|
||||||
{
|
|
||||||
return HB_DIRECTION_IS_HORIZONTAL (direction) ? font->em_scale_x (coordinate) : font->em_scale_y (coordinate);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (c->check_struct (this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
HBUINT16 caretValueFormat; /* Format identifier--format = 1 */
|
|
||||||
FWORD coordinate; /* X or Y value, in design units */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_STATIC (4);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct CaretValueFormat2
|
|
||||||
{
|
|
||||||
friend struct CaretValue;
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->embed (this);
|
|
||||||
if (unlikely (!out)) return_trace (false);
|
|
||||||
return_trace (true);
|
|
||||||
}
|
|
||||||
|
|
||||||
private:
|
|
||||||
hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction, hb_codepoint_t glyph_id) const
|
|
||||||
{
|
|
||||||
hb_position_t x, y;
|
|
||||||
font->get_glyph_contour_point_for_origin (glyph_id, caretValuePoint, direction, &x, &y);
|
|
||||||
return HB_DIRECTION_IS_HORIZONTAL (direction) ? x : y;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (c->check_struct (this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
HBUINT16 caretValueFormat; /* Format identifier--format = 2 */
|
|
||||||
HBUINT16 caretValuePoint; /* Contour point index on glyph */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_STATIC (4);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct CaretValueFormat3
|
|
||||||
{
|
|
||||||
friend struct CaretValue;
|
|
||||||
|
|
||||||
hb_position_t get_caret_value (hb_font_t *font, hb_direction_t direction,
|
|
||||||
const VariationStore &var_store) const
|
|
||||||
{
|
|
||||||
return HB_DIRECTION_IS_HORIZONTAL (direction) ?
|
|
||||||
font->em_scale_x (coordinate) + (this+deviceTable).get_x_delta (font, var_store) :
|
|
||||||
font->em_scale_y (coordinate) + (this+deviceTable).get_y_delta (font, var_store);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!out)) return_trace (false);
|
|
||||||
if (!c->serializer->embed (caretValueFormat)) return_trace (false);
|
|
||||||
if (!c->serializer->embed (coordinate)) return_trace (false);
|
|
||||||
|
|
||||||
unsigned varidx = (this+deviceTable).get_variation_index ();
|
|
||||||
if (c->plan->layout_variation_idx_delta_map.has (varidx))
|
|
||||||
{
|
|
||||||
int delta = hb_second (c->plan->layout_variation_idx_delta_map.get (varidx));
|
|
||||||
if (delta != 0)
|
|
||||||
{
|
|
||||||
if (!c->serializer->check_assign (out->coordinate, coordinate + delta, HB_SERIALIZE_ERROR_INT_OVERFLOW))
|
|
||||||
return_trace (false);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (c->plan->all_axes_pinned)
|
|
||||||
return_trace (c->serializer->check_assign (out->caretValueFormat, 1, HB_SERIALIZE_ERROR_INT_OVERFLOW));
|
|
||||||
|
|
||||||
if (!c->serializer->embed (deviceTable))
|
|
||||||
return_trace (false);
|
|
||||||
|
|
||||||
return_trace (out->deviceTable.serialize_copy (c->serializer, deviceTable, this, c->serializer->to_bias (out),
|
|
||||||
hb_serialize_context_t::Head, &c->plan->layout_variation_idx_delta_map));
|
|
||||||
}
|
|
||||||
|
|
||||||
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
|
||||||
{ (this+deviceTable).collect_variation_indices (c); }
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (c->check_struct (this) && deviceTable.sanitize (c, this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
HBUINT16 caretValueFormat; /* Format identifier--format = 3 */
|
|
||||||
FWORD coordinate; /* X or Y value, in design units */
|
|
||||||
Offset16To<Device>
|
|
||||||
deviceTable; /* Offset to Device table for X or Y
|
|
||||||
* value--from beginning of CaretValue
|
|
||||||
* table */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_STATIC (6);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct CaretValue
|
|
||||||
{
|
|
||||||
hb_position_t get_caret_value (hb_font_t *font,
|
|
||||||
hb_direction_t direction,
|
|
||||||
hb_codepoint_t glyph_id,
|
|
||||||
const VariationStore &var_store) const
|
|
||||||
{
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return u.format1.get_caret_value (font, direction);
|
|
||||||
case 2: return u.format2.get_caret_value (font, direction, glyph_id);
|
|
||||||
case 3: return u.format3.get_caret_value (font, direction, var_store);
|
|
||||||
default:return 0;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
template <typename context_t, typename ...Ts>
|
|
||||||
typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const
|
|
||||||
{
|
|
||||||
if (unlikely (!c->may_dispatch (this, &u.format))) return c->no_dispatch_return_value ();
|
|
||||||
TRACE_DISPATCH (this, u.format);
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return_trace (c->dispatch (u.format1, std::forward<Ts> (ds)...));
|
|
||||||
case 2: return_trace (c->dispatch (u.format2, std::forward<Ts> (ds)...));
|
|
||||||
case 3: return_trace (c->dispatch (u.format3, std::forward<Ts> (ds)...));
|
|
||||||
default:return_trace (c->default_return_value ());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
|
||||||
{
|
|
||||||
switch (u.format) {
|
|
||||||
case 1:
|
|
||||||
case 2:
|
|
||||||
return;
|
|
||||||
case 3:
|
|
||||||
u.format3.collect_variation_indices (c);
|
|
||||||
return;
|
|
||||||
default: return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
if (!u.format.sanitize (c)) return_trace (false);
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return_trace (u.format1.sanitize (c));
|
|
||||||
case 2: return_trace (u.format2.sanitize (c));
|
|
||||||
case 3: return_trace (u.format3.sanitize (c));
|
|
||||||
default:return_trace (true);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
union {
|
|
||||||
HBUINT16 format; /* Format identifier */
|
|
||||||
CaretValueFormat1 format1;
|
|
||||||
CaretValueFormat2 format2;
|
|
||||||
CaretValueFormat3 format3;
|
|
||||||
} u;
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_UNION (2, format);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct LigGlyph
|
|
||||||
{
|
|
||||||
unsigned get_lig_carets (hb_font_t *font,
|
|
||||||
hb_direction_t direction,
|
|
||||||
hb_codepoint_t glyph_id,
|
|
||||||
const VariationStore &var_store,
|
|
||||||
unsigned start_offset,
|
|
||||||
unsigned *caret_count /* IN/OUT */,
|
|
||||||
hb_position_t *caret_array /* OUT */) const
|
|
||||||
{
|
|
||||||
if (caret_count)
|
|
||||||
{
|
|
||||||
+ carets.as_array ().sub_array (start_offset, caret_count)
|
|
||||||
| hb_map (hb_add (this))
|
|
||||||
| hb_map ([&] (const CaretValue &value) { return value.get_caret_value (font, direction, glyph_id, var_store); })
|
|
||||||
| hb_sink (hb_array (caret_array, *caret_count))
|
|
||||||
;
|
|
||||||
}
|
|
||||||
|
|
||||||
return carets.len;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
|
||||||
|
|
||||||
+ hb_iter (carets)
|
|
||||||
| hb_apply (subset_offset_array (c, out->carets, this))
|
|
||||||
;
|
|
||||||
|
|
||||||
return_trace (bool (out->carets));
|
|
||||||
}
|
|
||||||
|
|
||||||
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
|
||||||
{
|
|
||||||
for (const Offset16To<CaretValue>& offset : carets.iter ())
|
|
||||||
(this+offset).collect_variation_indices (c);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (carets.sanitize (c, this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
Array16OfOffset16To<CaretValue>
|
|
||||||
carets; /* Offset array of CaretValue tables
|
|
||||||
* --from beginning of LigGlyph table
|
|
||||||
* --in increasing coordinate order */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_ARRAY (2, carets);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct LigCaretList
|
|
||||||
{
|
|
||||||
unsigned int get_lig_carets (hb_font_t *font,
|
|
||||||
hb_direction_t direction,
|
|
||||||
hb_codepoint_t glyph_id,
|
|
||||||
const VariationStore &var_store,
|
|
||||||
unsigned int start_offset,
|
|
||||||
unsigned int *caret_count /* IN/OUT */,
|
|
||||||
hb_position_t *caret_array /* OUT */) const
|
|
||||||
{
|
|
||||||
unsigned int index = (this+coverage).get_coverage (glyph_id);
|
|
||||||
if (index == NOT_COVERED)
|
|
||||||
{
|
|
||||||
if (caret_count)
|
|
||||||
*caret_count = 0;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
const LigGlyph &lig_glyph = this+ligGlyph[index];
|
|
||||||
return lig_glyph.get_lig_carets (font, direction, glyph_id, var_store, start_offset, caret_count, caret_array);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
const hb_set_t &glyphset = *c->plan->glyphset_gsub ();
|
|
||||||
const hb_map_t &glyph_map = *c->plan->glyph_map;
|
|
||||||
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
|
||||||
|
|
||||||
hb_sorted_vector_t<hb_codepoint_t> new_coverage;
|
|
||||||
+ hb_zip (this+coverage, ligGlyph)
|
|
||||||
| hb_filter (glyphset, hb_first)
|
|
||||||
| hb_filter (subset_offset_array (c, out->ligGlyph, this), hb_second)
|
|
||||||
| hb_map (hb_first)
|
|
||||||
| hb_map (glyph_map)
|
|
||||||
| hb_sink (new_coverage)
|
|
||||||
;
|
|
||||||
out->coverage.serialize_serialize (c->serializer, new_coverage.iter ());
|
|
||||||
return_trace (bool (new_coverage));
|
|
||||||
}
|
|
||||||
|
|
||||||
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
|
||||||
{
|
|
||||||
+ hb_zip (this+coverage, ligGlyph)
|
|
||||||
| hb_filter (c->glyph_set, hb_first)
|
|
||||||
| hb_map (hb_second)
|
|
||||||
| hb_map (hb_add (this))
|
|
||||||
| hb_apply ([c] (const LigGlyph& _) { _.collect_variation_indices (c); })
|
|
||||||
;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (coverage.sanitize (c, this) && ligGlyph.sanitize (c, this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
Offset16To<Coverage>
|
|
||||||
coverage; /* Offset to Coverage table--from
|
|
||||||
* beginning of LigCaretList table */
|
|
||||||
Array16OfOffset16To<LigGlyph>
|
|
||||||
ligGlyph; /* Array of LigGlyph tables
|
|
||||||
* in Coverage Index order */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_ARRAY (4, ligGlyph);
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
struct MarkGlyphSetsFormat1
|
|
||||||
{
|
|
||||||
bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
|
||||||
{ return (this+coverage[set_index]).get_coverage (glyph_id) != NOT_COVERED; }
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->start_embed (*this);
|
|
||||||
if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
|
|
||||||
out->format = format;
|
|
||||||
|
|
||||||
bool ret = true;
|
|
||||||
for (const Offset32To<Coverage>& offset : coverage.iter ())
|
|
||||||
{
|
|
||||||
auto *o = out->coverage.serialize_append (c->serializer);
|
|
||||||
if (unlikely (!o))
|
|
||||||
{
|
|
||||||
ret = false;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
//not using o->serialize_subset (c, offset, this, out) here because
|
|
||||||
//OTS doesn't allow null offset.
|
|
||||||
//See issue: https://github.com/khaledhosny/ots/issues/172
|
|
||||||
c->serializer->push ();
|
|
||||||
c->dispatch (this+offset);
|
|
||||||
c->serializer->add_link (*o, c->serializer->pop_pack ());
|
|
||||||
}
|
|
||||||
|
|
||||||
return_trace (ret && out->coverage.len);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (coverage.sanitize (c, this));
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
HBUINT16 format; /* Format identifier--format = 1 */
|
|
||||||
Array16Of<Offset32To<Coverage>>
|
|
||||||
coverage; /* Array of long offsets to mark set
|
|
||||||
* coverage tables */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_ARRAY (4, coverage);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct MarkGlyphSets
|
|
||||||
{
|
|
||||||
bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
|
||||||
{
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return u.format1.covers (set_index, glyph_id);
|
|
||||||
default:return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return_trace (u.format1.subset (c));
|
|
||||||
default:return_trace (false);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
if (!u.format.sanitize (c)) return_trace (false);
|
|
||||||
switch (u.format) {
|
|
||||||
case 1: return_trace (u.format1.sanitize (c));
|
|
||||||
default:return_trace (true);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
union {
|
|
||||||
HBUINT16 format; /* Format identifier */
|
|
||||||
MarkGlyphSetsFormat1 format1;
|
|
||||||
} u;
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_UNION (2, format);
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* GDEF -- Glyph Definition
|
|
||||||
* https://docs.microsoft.com/en-us/typography/opentype/spec/gdef
|
|
||||||
*/
|
|
||||||
|
|
||||||
|
|
||||||
template <typename Types>
|
|
||||||
struct GDEFVersion1_2
|
|
||||||
{
|
|
||||||
friend struct GDEF;
|
|
||||||
|
|
||||||
protected:
|
|
||||||
FixedVersion<>version; /* Version of the GDEF table--currently
|
|
||||||
* 0x00010003u */
|
|
||||||
typename Types::template OffsetTo<ClassDef>
|
|
||||||
glyphClassDef; /* Offset to class definition table
|
|
||||||
* for glyph type--from beginning of
|
|
||||||
* GDEF header (may be Null) */
|
|
||||||
typename Types::template OffsetTo<AttachList>
|
|
||||||
attachList; /* Offset to list of glyphs with
|
|
||||||
* attachment points--from beginning
|
|
||||||
* of GDEF header (may be Null) */
|
|
||||||
typename Types::template OffsetTo<LigCaretList>
|
|
||||||
ligCaretList; /* Offset to list of positioning points
|
|
||||||
* for ligature carets--from beginning
|
|
||||||
* of GDEF header (may be Null) */
|
|
||||||
typename Types::template OffsetTo<ClassDef>
|
|
||||||
markAttachClassDef; /* Offset to class definition table for
|
|
||||||
* mark attachment type--from beginning
|
|
||||||
* of GDEF header (may be Null) */
|
|
||||||
typename Types::template OffsetTo<MarkGlyphSets>
|
|
||||||
markGlyphSetsDef; /* Offset to the table of mark set
|
|
||||||
* definitions--from beginning of GDEF
|
|
||||||
* header (may be NULL). Introduced
|
|
||||||
* in version 0x00010002. */
|
|
||||||
Offset32To<VariationStore>
|
|
||||||
varStore; /* Offset to the table of Item Variation
|
|
||||||
* Store--from beginning of GDEF
|
|
||||||
* header (may be NULL). Introduced
|
|
||||||
* in version 0x00010003. */
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_MIN (4 + 4 * Types::size);
|
|
||||||
|
|
||||||
unsigned int get_size () const
|
|
||||||
{
|
|
||||||
return min_size +
|
|
||||||
(version.to_int () >= 0x00010002u ? markGlyphSetsDef.static_size : 0) +
|
|
||||||
(version.to_int () >= 0x00010003u ? varStore.static_size : 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
return_trace (version.sanitize (c) &&
|
|
||||||
glyphClassDef.sanitize (c, this) &&
|
|
||||||
attachList.sanitize (c, this) &&
|
|
||||||
ligCaretList.sanitize (c, this) &&
|
|
||||||
markAttachClassDef.sanitize (c, this) &&
|
|
||||||
(version.to_int () < 0x00010002u || markGlyphSetsDef.sanitize (c, this)) &&
|
|
||||||
(version.to_int () < 0x00010003u || varStore.sanitize (c, this)));
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SUBSET (this);
|
|
||||||
auto *out = c->serializer->embed (*this);
|
|
||||||
if (unlikely (!out)) return_trace (false);
|
|
||||||
|
|
||||||
bool subset_glyphclassdef = out->glyphClassDef.serialize_subset (c, glyphClassDef, this, nullptr, false, true);
|
|
||||||
bool subset_attachlist = out->attachList.serialize_subset (c, attachList, this);
|
|
||||||
bool subset_ligcaretlist = out->ligCaretList.serialize_subset (c, ligCaretList, this);
|
|
||||||
bool subset_markattachclassdef = out->markAttachClassDef.serialize_subset (c, markAttachClassDef, this, nullptr, false, true);
|
|
||||||
|
|
||||||
bool subset_markglyphsetsdef = false;
|
|
||||||
if (version.to_int () >= 0x00010002u)
|
|
||||||
{
|
|
||||||
subset_markglyphsetsdef = out->markGlyphSetsDef.serialize_subset (c, markGlyphSetsDef, this);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset_varstore = false;
|
|
||||||
if (version.to_int () >= 0x00010003u)
|
|
||||||
{
|
|
||||||
if (c->plan->all_axes_pinned)
|
|
||||||
out->varStore = 0;
|
|
||||||
else
|
|
||||||
subset_varstore = out->varStore.serialize_subset (c, varStore, this, c->plan->gdef_varstore_inner_maps.as_array ());
|
|
||||||
}
|
|
||||||
|
|
||||||
if (subset_varstore)
|
|
||||||
{
|
|
||||||
out->version.minor = 3;
|
|
||||||
} else if (subset_markglyphsetsdef) {
|
|
||||||
out->version.minor = 2;
|
|
||||||
} else {
|
|
||||||
out->version.minor = 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
return_trace (subset_glyphclassdef || subset_attachlist ||
|
|
||||||
subset_ligcaretlist || subset_markattachclassdef ||
|
|
||||||
(out->version.to_int () >= 0x00010002u && subset_markglyphsetsdef) ||
|
|
||||||
(out->version.to_int () >= 0x00010003u && subset_varstore));
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
struct GDEF
|
|
||||||
{
|
|
||||||
static constexpr hb_tag_t tableTag = HB_OT_TAG_GDEF;
|
|
||||||
|
|
||||||
enum GlyphClasses {
|
|
||||||
UnclassifiedGlyph = 0,
|
|
||||||
BaseGlyph = 1,
|
|
||||||
LigatureGlyph = 2,
|
|
||||||
MarkGlyph = 3,
|
|
||||||
ComponentGlyph = 4
|
|
||||||
};
|
|
||||||
|
|
||||||
unsigned int get_size () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.get_size ();
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.get_size ();
|
|
||||||
#endif
|
|
||||||
default: return u.version.static_size;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool sanitize (hb_sanitize_context_t *c) const
|
|
||||||
{
|
|
||||||
TRACE_SANITIZE (this);
|
|
||||||
if (unlikely (!u.version.sanitize (c))) return_trace (false);
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return_trace (u.version1.sanitize (c));
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return_trace (u.version2.sanitize (c));
|
|
||||||
#endif
|
|
||||||
default: return_trace (true);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool subset (hb_subset_context_t *c) const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.subset (c);
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.subset (c);
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bool has_glyph_classes () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.glyphClassDef != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.glyphClassDef != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const ClassDef &get_glyph_class_def () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return this+u.version1.glyphClassDef;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.glyphClassDef;
|
|
||||||
#endif
|
|
||||||
default: return Null(ClassDef);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool has_attach_list () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.attachList != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.attachList != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const AttachList &get_attach_list () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return this+u.version1.attachList;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.attachList;
|
|
||||||
#endif
|
|
||||||
default: return Null(AttachList);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool has_lig_carets () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.ligCaretList != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.ligCaretList != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const LigCaretList &get_lig_caret_list () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return this+u.version1.ligCaretList;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.ligCaretList;
|
|
||||||
#endif
|
|
||||||
default: return Null(LigCaretList);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool has_mark_attachment_types () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version1.markAttachClassDef != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.markAttachClassDef != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const ClassDef &get_mark_attach_class_def () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return this+u.version1.markAttachClassDef;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.markAttachClassDef;
|
|
||||||
#endif
|
|
||||||
default: return Null(ClassDef);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool has_mark_glyph_sets () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version.to_int () >= 0x00010002u && u.version1.markGlyphSetsDef != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.markGlyphSetsDef != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const MarkGlyphSets &get_mark_glyph_sets () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version.to_int () >= 0x00010002u ? this+u.version1.markGlyphSetsDef : Null(MarkGlyphSets);
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.markGlyphSetsDef;
|
|
||||||
#endif
|
|
||||||
default: return Null(MarkGlyphSets);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
bool has_var_store () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version.to_int () >= 0x00010003u && u.version1.varStore != 0;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return u.version2.varStore != 0;
|
|
||||||
#endif
|
|
||||||
default: return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
const VariationStore &get_var_store () const
|
|
||||||
{
|
|
||||||
switch (u.version.major) {
|
|
||||||
case 1: return u.version.to_int () >= 0x00010003u ? this+u.version1.varStore : Null(VariationStore);
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
case 2: return this+u.version2.varStore;
|
|
||||||
#endif
|
|
||||||
default: return Null(VariationStore);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
bool has_data () const { return u.version.to_int (); }
|
|
||||||
unsigned int get_glyph_class (hb_codepoint_t glyph) const
|
|
||||||
{ return get_glyph_class_def ().get_class (glyph); }
|
|
||||||
void get_glyphs_in_class (unsigned int klass, hb_set_t *glyphs) const
|
|
||||||
{ get_glyph_class_def ().collect_class (glyphs, klass); }
|
|
||||||
|
|
||||||
unsigned int get_mark_attachment_type (hb_codepoint_t glyph) const
|
|
||||||
{ return get_mark_attach_class_def ().get_class (glyph); }
|
|
||||||
|
|
||||||
unsigned int get_attach_points (hb_codepoint_t glyph_id,
|
|
||||||
unsigned int start_offset,
|
|
||||||
unsigned int *point_count /* IN/OUT */,
|
|
||||||
unsigned int *point_array /* OUT */) const
|
|
||||||
{ return get_attach_list ().get_attach_points (glyph_id, start_offset, point_count, point_array); }
|
|
||||||
|
|
||||||
unsigned int get_lig_carets (hb_font_t *font,
|
|
||||||
hb_direction_t direction,
|
|
||||||
hb_codepoint_t glyph_id,
|
|
||||||
unsigned int start_offset,
|
|
||||||
unsigned int *caret_count /* IN/OUT */,
|
|
||||||
hb_position_t *caret_array /* OUT */) const
|
|
||||||
{ return get_lig_caret_list ().get_lig_carets (font,
|
|
||||||
direction, glyph_id, get_var_store(),
|
|
||||||
start_offset, caret_count, caret_array); }
|
|
||||||
|
|
||||||
bool mark_set_covers (unsigned int set_index, hb_codepoint_t glyph_id) const
|
|
||||||
{ return get_mark_glyph_sets ().covers (set_index, glyph_id); }
|
|
||||||
|
|
||||||
/* glyph_props is a 16-bit integer where the lower 8-bit have bits representing
|
|
||||||
* glyph class and other bits, and high 8-bit the mark attachment type (if any).
|
|
||||||
* Not to be confused with lookup_props which is very similar. */
|
|
||||||
unsigned int get_glyph_props (hb_codepoint_t glyph) const
|
|
||||||
{
|
|
||||||
unsigned int klass = get_glyph_class (glyph);
|
|
||||||
|
|
||||||
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH == (unsigned int) LookupFlag::IgnoreBaseGlyphs), "");
|
|
||||||
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE == (unsigned int) LookupFlag::IgnoreLigatures), "");
|
|
||||||
static_assert (((unsigned int) HB_OT_LAYOUT_GLYPH_PROPS_MARK == (unsigned int) LookupFlag::IgnoreMarks), "");
|
|
||||||
|
|
||||||
switch (klass) {
|
|
||||||
default: return HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED;
|
|
||||||
case BaseGlyph: return HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH;
|
|
||||||
case LigatureGlyph: return HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE;
|
|
||||||
case MarkGlyph:
|
|
||||||
klass = get_mark_attachment_type (glyph);
|
|
||||||
return HB_OT_LAYOUT_GLYPH_PROPS_MARK | (klass << 8);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
HB_INTERNAL bool is_blocklisted (hb_blob_t *blob,
|
|
||||||
hb_face_t *face) const;
|
|
||||||
|
|
||||||
struct accelerator_t
|
|
||||||
{
|
|
||||||
accelerator_t (hb_face_t *face)
|
|
||||||
{
|
|
||||||
table = hb_sanitize_context_t ().reference_table<GDEF> (face);
|
|
||||||
if (unlikely (table->is_blocklisted (table.get_blob (), face)))
|
|
||||||
{
|
|
||||||
hb_blob_destroy (table.get_blob ());
|
|
||||||
table = hb_blob_get_empty ();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
~accelerator_t () { table.destroy (); }
|
|
||||||
|
|
||||||
hb_blob_ptr_t<GDEF> table;
|
|
||||||
};
|
|
||||||
|
|
||||||
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
|
|
||||||
{ get_lig_caret_list ().collect_variation_indices (c); }
|
|
||||||
|
|
||||||
void remap_layout_variation_indices (const hb_set_t *layout_variation_indices,
|
|
||||||
hb_hashmap_t<unsigned, hb_pair_t<unsigned, int>> *layout_variation_idx_delta_map /* OUT */) const
|
|
||||||
{
|
|
||||||
if (!has_var_store ()) return;
|
|
||||||
if (layout_variation_indices->is_empty ()) return;
|
|
||||||
|
|
||||||
unsigned new_major = 0, new_minor = 0;
|
|
||||||
unsigned last_major = (layout_variation_indices->get_min ()) >> 16;
|
|
||||||
for (unsigned idx : layout_variation_indices->iter ())
|
|
||||||
{
|
|
||||||
uint16_t major = idx >> 16;
|
|
||||||
if (major >= get_var_store ().get_sub_table_count ()) break;
|
|
||||||
if (major != last_major)
|
|
||||||
{
|
|
||||||
new_minor = 0;
|
|
||||||
++new_major;
|
|
||||||
}
|
|
||||||
|
|
||||||
unsigned new_idx = (new_major << 16) + new_minor;
|
|
||||||
if (!layout_variation_idx_delta_map->has (idx))
|
|
||||||
continue;
|
|
||||||
int delta = hb_second (layout_variation_idx_delta_map->get (idx));
|
|
||||||
|
|
||||||
layout_variation_idx_delta_map->set (idx, hb_pair_t<unsigned, int> (new_idx, delta));
|
|
||||||
++new_minor;
|
|
||||||
last_major = major;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
protected:
|
|
||||||
union {
|
|
||||||
FixedVersion<> version; /* Version identifier */
|
|
||||||
GDEFVersion1_2<SmallTypes> version1;
|
|
||||||
#ifndef HB_NO_BEYOND_64K
|
|
||||||
GDEFVersion1_2<MediumTypes> version2;
|
|
||||||
#endif
|
|
||||||
} u;
|
|
||||||
public:
|
|
||||||
DEFINE_SIZE_MIN (4);
|
|
||||||
};
|
|
||||||
|
|
||||||
struct GDEF_accelerator_t : GDEF::accelerator_t {
|
|
||||||
GDEF_accelerator_t (hb_face_t *face) : GDEF::accelerator_t (face) {}
|
|
||||||
};
|
|
||||||
|
|
||||||
} /* namespace OT */
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* HB_OT_LAYOUT_GDEF_TABLE_HH */
|
#endif /* HB_OT_LAYOUT_GDEF_TABLE_HH */
|
||||||
|
|
|
||||||
|
|
@ -113,6 +113,7 @@ hb_base_sources = files(
|
||||||
'OT/Layout/Common/CoverageFormat1.hh',
|
'OT/Layout/Common/CoverageFormat1.hh',
|
||||||
'OT/Layout/Common/CoverageFormat2.hh',
|
'OT/Layout/Common/CoverageFormat2.hh',
|
||||||
'OT/Layout/Common/RangeRecord.hh',
|
'OT/Layout/Common/RangeRecord.hh',
|
||||||
|
'OT/Layout/GDEF/GDEF.hh',
|
||||||
'OT/Layout/GPOS/AnchorFormat1.hh',
|
'OT/Layout/GPOS/AnchorFormat1.hh',
|
||||||
'OT/Layout/GPOS/AnchorFormat2.hh',
|
'OT/Layout/GPOS/AnchorFormat2.hh',
|
||||||
'OT/Layout/GPOS/AnchorFormat3.hh',
|
'OT/Layout/GPOS/AnchorFormat3.hh',
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue