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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-trak-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-trak-table.hh
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-/*
- * Copyright © 2018 Ebrahim Byagowi
- * Copyright © 2018 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_AAT_LAYOUT_TRAK_TABLE_HH
-#define HB_AAT_LAYOUT_TRAK_TABLE_HH
-
-#include "hb-aat-layout-common.hh"
-#include "hb-ot-layout.hh"
-#include "hb-open-type.hh"
-
-/*
- * trak -- Tracking
- * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6trak.html
- */
-#define HB_AAT_TAG_trak HB_TAG('t','r','a','k')
-
-
-namespace AAT {
-
-
-struct TrackTableEntry
-{
- friend struct TrackData;
-
- float get_track_value () const { return track.to_float (); }
-
- int get_value (const void *base, unsigned int index,
- unsigned int table_size) const
- { return (base+valuesZ).as_array (table_size)[index]; }
-
- public:
- bool sanitize (hb_sanitize_context_t *c, const void *base,
- unsigned int table_size) const
- {
- TRACE_SANITIZE (this);
- return_trace (likely (c->check_struct (this) &&
- (valuesZ.sanitize (c, base, table_size))));
- }
-
- protected:
- HBFixed track; /* Track value for this record. */
- NameID trackNameID; /* The 'name' table index for this track.
- * (a short word or phrase like "loose"
- * or "very tight") */
- NNOffsetTo<UnsizedArrayOf<FWORD>>
- valuesZ; /* Offset from start of tracking table to
- * per-size tracking values for this track. */
-
- public:
- DEFINE_SIZE_STATIC (8);
-};
-
-struct TrackData
-{
- float interpolate_at (unsigned int idx,
- float target_size,
- const TrackTableEntry &trackTableEntry,
- const void *base) const
- {
- unsigned int sizes = nSizes;
- hb_array_t<const HBFixed> size_table ((base+sizeTable).arrayZ, sizes);
-
- float s0 = size_table[idx].to_float ();
- float s1 = size_table[idx + 1].to_float ();
- float t = unlikely (s0 == s1) ? 0.f : (target_size - s0) / (s1 - s0);
- return t * trackTableEntry.get_value (base, idx + 1, sizes) +
- (1.f - t) * trackTableEntry.get_value (base, idx, sizes);
- }
-
- int get_tracking (const void *base, float ptem) const
- {
- /*
- * Choose track.
- */
- const TrackTableEntry *trackTableEntry = nullptr;
- unsigned int count = nTracks;
- for (unsigned int i = 0; i < count; i++)
- {
- /* Note: Seems like the track entries are sorted by values. But the
- * spec doesn't explicitly say that. It just mentions it in the example. */
-
- /* For now we only seek for track entries with zero tracking value */
-
- if (trackTable[i].get_track_value () == 0.f)
- {
- trackTableEntry = &trackTable[i];
- break;
- }
- }
- if (!trackTableEntry) return 0.;
-
- /*
- * Choose size.
- */
- unsigned int sizes = nSizes;
- if (!sizes) return 0.;
- if (sizes == 1) return trackTableEntry->get_value (base, 0, sizes);
-
- hb_array_t<const HBFixed> size_table ((base+sizeTable).arrayZ, sizes);
- unsigned int size_index;
- for (size_index = 0; size_index < sizes - 1; size_index++)
- if (size_table[size_index].to_float () >= ptem)
- break;
-
- return roundf (interpolate_at (size_index ? size_index - 1 : 0, ptem,
- *trackTableEntry, base));
- }
-
- bool sanitize (hb_sanitize_context_t *c, const void *base) const
- {
- TRACE_SANITIZE (this);
- return_trace (likely (c->check_struct (this) &&
- sizeTable.sanitize (c, base, nSizes) &&
- trackTable.sanitize (c, nTracks, base, nSizes)));
- }
-
- protected:
- HBUINT16 nTracks; /* Number of separate tracks included in this table. */
- HBUINT16 nSizes; /* Number of point sizes included in this table. */
- LNNOffsetTo<UnsizedArrayOf<HBFixed>>
- sizeTable; /* Offset from start of the tracking table to
- * Array[nSizes] of size values.. */
- UnsizedArrayOf<TrackTableEntry>
- trackTable; /* Array[nTracks] of TrackTableEntry records. */
-
- public:
- DEFINE_SIZE_ARRAY (8, trackTable);
-};
-
-struct trak
-{
- static constexpr hb_tag_t tableTag = HB_AAT_TAG_trak;
-
- bool has_data () const { return version.to_int (); }
-
- bool apply (hb_aat_apply_context_t *c) const
- {
- TRACE_APPLY (this);
-
- hb_mask_t trak_mask = c->plan->trak_mask;
-
- const float ptem = c->font->ptem;
- if (unlikely (ptem <= 0.f))
- return_trace (false);
-
- hb_buffer_t *buffer = c->buffer;
- if (HB_DIRECTION_IS_HORIZONTAL (buffer->props.direction))
- {
- const TrackData &trackData = this+horizData;
- int tracking = trackData.get_tracking (this, ptem);
- hb_position_t offset_to_add = c->font->em_scalef_x (tracking / 2);
- hb_position_t advance_to_add = c->font->em_scalef_x (tracking);
- foreach_grapheme (buffer, start, end)
- {
- if (!(buffer->info[start].mask & trak_mask)) continue;
- buffer->pos[start].x_advance += advance_to_add;
- buffer->pos[start].x_offset += offset_to_add;
- }
- }
- else
- {
- const TrackData &trackData = this+vertData;
- int tracking = trackData.get_tracking (this, ptem);
- hb_position_t offset_to_add = c->font->em_scalef_y (tracking / 2);
- hb_position_t advance_to_add = c->font->em_scalef_y (tracking);
- foreach_grapheme (buffer, start, end)
- {
- if (!(buffer->info[start].mask & trak_mask)) continue;
- buffer->pos[start].y_advance += advance_to_add;
- buffer->pos[start].y_offset += offset_to_add;
- }
- }
-
- return_trace (true);
- }
-
- bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
-
- return_trace (likely (c->check_struct (this) &&
- version.major == 1 &&
- horizData.sanitize (c, this, this) &&
- vertData.sanitize (c, this, this)));
- }
-
- protected:
- FixedVersion<>version; /* Version of the tracking table
- * (0x00010000u for version 1.0). */
- HBUINT16 format; /* Format of the tracking table (set to 0). */
- OffsetTo<TrackData>
- horizData; /* Offset from start of tracking table to TrackData
- * for horizontal text (or 0 if none). */
- OffsetTo<TrackData>
- vertData; /* Offset from start of tracking table to TrackData
- * for vertical text (or 0 if none). */
- HBUINT16 reserved; /* Reserved. Set to 0. */
-
- public:
- DEFINE_SIZE_STATIC (12);
-};
-
-} /* namespace AAT */
-
-
-#endif /* HB_AAT_LAYOUT_TRAK_TABLE_HH */