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diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.12/src/hb-ot-layout-gsub-table.hh b/Build/source/libs/harfbuzz/harfbuzz-0.9.12/src/hb-ot-layout-gsub-table.hh
deleted file mode 100644
index 2642acbbb5c..00000000000
--- a/Build/source/libs/harfbuzz/harfbuzz-0.9.12/src/hb-ot-layout-gsub-table.hh
+++ /dev/null
@@ -1,1414 +0,0 @@
-/*
- * Copyright © 2007,2008,2009,2010 Red Hat, Inc.
- * Copyright © 2010,2012 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.
- *
- * Red Hat Author(s): Behdad Esfahbod
- * Google Author(s): Behdad Esfahbod
- */
-
-#ifndef HB_OT_LAYOUT_GSUB_TABLE_HH
-#define HB_OT_LAYOUT_GSUB_TABLE_HH
-
-#include "hb-ot-layout-gsubgpos-private.hh"
-
-
-namespace OT {
-
-
-struct SingleSubstFormat1
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- hb_codepoint_t glyph_id = iter.get_glyph ();
- if (c->glyphs->has (glyph_id))
- c->glyphs->add ((glyph_id + deltaGlyphID) & 0xFFFF);
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- hb_codepoint_t glyph_id = iter.get_glyph ();
- c->input->add (glyph_id);
- c->output->add ((glyph_id + deltaGlyphID) & 0xFFFF);
- }
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- return TRACE_RETURN (c->len == 1 && (this+coverage).get_coverage (c->glyphs[0]) != NOT_COVERED);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- hb_codepoint_t glyph_id = c->buffer->cur().codepoint;
- unsigned int index = (this+coverage).get_coverage (glyph_id);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- /* According to the Adobe Annotated OpenType Suite, result is always
- * limited to 16bit. */
- glyph_id = (glyph_id + deltaGlyphID) & 0xFFFF;
- c->replace_glyph (glyph_id);
-
- return TRACE_RETURN (true);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- unsigned int num_glyphs,
- int delta)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!coverage.serialize (c, this).serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
- deltaGlyphID.set (delta); /* TODO(serilaize) overflow? */
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (coverage.sanitize (c, this) && deltaGlyphID.sanitize (c));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 1 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of Substitution table */
- SHORT deltaGlyphID; /* Add to original GlyphID to get
- * substitute GlyphID */
- public:
- DEFINE_SIZE_STATIC (6);
-};
-
-struct SingleSubstFormat2
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- if (c->glyphs->has (iter.get_glyph ()))
- c->glyphs->add (substitute[iter.get_coverage ()]);
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- c->input->add (iter.get_glyph ());
- c->output->add (substitute[iter.get_coverage ()]);
- }
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- return TRACE_RETURN (c->len == 1 && (this+coverage).get_coverage (c->glyphs[0]) != NOT_COVERED);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- hb_codepoint_t glyph_id = c->buffer->cur().codepoint;
- unsigned int index = (this+coverage).get_coverage (glyph_id);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- if (unlikely (index >= substitute.len)) return TRACE_RETURN (false);
-
- glyph_id = substitute[index];
- c->replace_glyph (glyph_id);
-
- return TRACE_RETURN (true);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<GlyphID> &substitutes,
- unsigned int num_glyphs)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!substitute.serialize (c, substitutes, num_glyphs))) return TRACE_RETURN (false);
- if (unlikely (!coverage.serialize (c, this).serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (coverage.sanitize (c, this) && substitute.sanitize (c));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 2 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of Substitution table */
- ArrayOf<GlyphID>
- substitute; /* Array of substitute
- * GlyphIDs--ordered by Coverage Index */
- public:
- DEFINE_SIZE_ARRAY (6, substitute);
-};
-
-struct SingleSubst
-{
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- switch (u.format) {
- case 1: return TRACE_RETURN (c->process (u.format1));
- case 2: return TRACE_RETURN (c->process (u.format2));
- default:return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<GlyphID> &substitutes,
- unsigned int num_glyphs)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (u.format))) return TRACE_RETURN (false);
- unsigned int format = 2;
- int delta;
- if (num_glyphs) {
- format = 1;
- /* TODO(serialize) check for wrap-around */
- delta = substitutes[0] - glyphs[0];
- for (unsigned int i = 1; i < num_glyphs; i++)
- if (delta != substitutes[i] - glyphs[i]) {
- format = 2;
- break;
- }
- }
- u.format.set (format);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.serialize (c, glyphs, num_glyphs, delta));
- case 2: return TRACE_RETURN (u.format2.serialize (c, glyphs, substitutes, num_glyphs));
- default:return TRACE_RETURN (false);
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!u.format.sanitize (c)) return TRACE_RETURN (false);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.sanitize (c));
- case 2: return TRACE_RETURN (u.format2.sanitize (c));
- default:return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- USHORT format; /* Format identifier */
- SingleSubstFormat1 format1;
- SingleSubstFormat2 format2;
- } u;
-};
-
-
-struct Sequence
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- unsigned int count = substitute.len;
- for (unsigned int i = 0; i < count; i++)
- c->glyphs->add (substitute[i]);
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- unsigned int count = substitute.len;
- for (unsigned int i = 0; i < count; i++)
- c->output->add (substitute[i]);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- if (unlikely (!substitute.len)) return TRACE_RETURN (false);
-
- unsigned int klass = c->property & HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE ? HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH : 0;
- unsigned int count = substitute.len;
- for (unsigned int i = 0; i < count; i++) {
- set_lig_props_for_component (c->buffer->cur(), i);
- c->output_glyph (substitute.array[i], klass);
- }
- c->buffer->skip_glyph ();
-
- return TRACE_RETURN (true);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- unsigned int num_glyphs)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!substitute.serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (substitute.sanitize (c));
- }
-
- protected:
- ArrayOf<GlyphID>
- substitute; /* String of GlyphIDs to substitute */
- public:
- DEFINE_SIZE_ARRAY (2, substitute);
-};
-
-struct MultipleSubstFormat1
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- if (c->glyphs->has (iter.get_glyph ()))
- (this+sequence[iter.get_coverage ()]).closure (c);
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- (this+coverage).add_coverage (c->input);
- unsigned int count = sequence.len;
- for (unsigned int i = 0; i < count; i++)
- (this+sequence[i]).collect_glyphs (c);
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- return TRACE_RETURN (c->len == 1 && (this+coverage).get_coverage (c->glyphs[0]) != NOT_COVERED);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
-
- unsigned int index = (this+coverage).get_coverage (c->buffer->cur().codepoint);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- return TRACE_RETURN ((this+sequence[index]).apply (c));
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &substitute_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &substitute_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!sequence.serialize (c, num_glyphs))) return TRACE_RETURN (false);
- for (unsigned int i = 0; i < num_glyphs; i++)
- if (unlikely (!sequence[i].serialize (c, this).serialize (c,
- substitute_glyphs_list,
- substitute_len_list[i]))) return TRACE_RETURN (false);
- substitute_len_list.advance (num_glyphs);
- if (unlikely (!coverage.serialize (c, this).serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (coverage.sanitize (c, this) && sequence.sanitize (c, this));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 1 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of Substitution table */
- OffsetArrayOf<Sequence>
- sequence; /* Array of Sequence tables
- * ordered by Coverage Index */
- public:
- DEFINE_SIZE_ARRAY (6, sequence);
-};
-
-struct MultipleSubst
-{
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- switch (u.format) {
- case 1: return TRACE_RETURN (c->process (u.format1));
- default:return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &substitute_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &substitute_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (u.format))) return TRACE_RETURN (false);
- unsigned int format = 1;
- u.format.set (format);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.serialize (c, glyphs, substitute_len_list, num_glyphs, substitute_glyphs_list));
- default:return TRACE_RETURN (false);
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!u.format.sanitize (c)) return TRACE_RETURN (false);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.sanitize (c));
- default:return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- USHORT format; /* Format identifier */
- MultipleSubstFormat1 format1;
- } u;
-};
-
-
-typedef ArrayOf<GlyphID> AlternateSet; /* Array of alternate GlyphIDs--in
- * arbitrary order */
-
-struct AlternateSubstFormat1
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- if (c->glyphs->has (iter.get_glyph ())) {
- const AlternateSet &alt_set = this+alternateSet[iter.get_coverage ()];
- unsigned int count = alt_set.len;
- for (unsigned int i = 0; i < count; i++)
- c->glyphs->add (alt_set[i]);
- }
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- c->input->add (iter.get_glyph ());
- const AlternateSet &alt_set = this+alternateSet[iter.get_coverage ()];
- unsigned int count = alt_set.len;
- for (unsigned int i = 0; i < count; i++)
- c->output->add (alt_set[i]);
- }
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- return TRACE_RETURN (c->len == 1 && (this+coverage).get_coverage (c->glyphs[0]) != NOT_COVERED);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- hb_codepoint_t glyph_id = c->buffer->cur().codepoint;
-
- unsigned int index = (this+coverage).get_coverage (glyph_id);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- const AlternateSet &alt_set = this+alternateSet[index];
-
- if (unlikely (!alt_set.len)) return TRACE_RETURN (false);
-
- hb_mask_t glyph_mask = c->buffer->cur().mask;
- hb_mask_t lookup_mask = c->lookup_mask;
-
- /* Note: This breaks badly if two features enabled this lookup together. */
- unsigned int shift = _hb_ctz (lookup_mask);
- unsigned int alt_index = ((lookup_mask & glyph_mask) >> shift);
-
- if (unlikely (alt_index > alt_set.len || alt_index == 0)) return TRACE_RETURN (false);
-
- glyph_id = alt_set[alt_index - 1];
-
- c->replace_glyph (glyph_id);
-
- return TRACE_RETURN (true);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &alternate_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &alternate_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!alternateSet.serialize (c, num_glyphs))) return TRACE_RETURN (false);
- for (unsigned int i = 0; i < num_glyphs; i++)
- if (unlikely (!alternateSet[i].serialize (c, this).serialize (c,
- alternate_glyphs_list,
- alternate_len_list[i]))) return TRACE_RETURN (false);
- alternate_len_list.advance (num_glyphs);
- if (unlikely (!coverage.serialize (c, this).serialize (c, glyphs, num_glyphs))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (coverage.sanitize (c, this) && alternateSet.sanitize (c, this));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 1 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of Substitution table */
- OffsetArrayOf<AlternateSet>
- alternateSet; /* Array of AlternateSet tables
- * ordered by Coverage Index */
- public:
- DEFINE_SIZE_ARRAY (6, alternateSet);
-};
-
-struct AlternateSubst
-{
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- switch (u.format) {
- case 1: return TRACE_RETURN (c->process (u.format1));
- default:return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &alternate_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &alternate_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (u.format))) return TRACE_RETURN (false);
- unsigned int format = 1;
- u.format.set (format);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.serialize (c, glyphs, alternate_len_list, num_glyphs, alternate_glyphs_list));
- default:return TRACE_RETURN (false);
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!u.format.sanitize (c)) return TRACE_RETURN (false);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.sanitize (c));
- default:return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- USHORT format; /* Format identifier */
- AlternateSubstFormat1 format1;
- } u;
-};
-
-
-struct Ligature
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- unsigned int count = component.len;
- for (unsigned int i = 1; i < count; i++)
- if (!c->glyphs->has (component[i]))
- return;
- c->glyphs->add (ligGlyph);
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- unsigned int count = component.len;
- for (unsigned int i = 1; i < count; i++)
- c->input->add (component[i]);
- c->output->add (ligGlyph);
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- if (c->len != component.len)
- return TRACE_RETURN (false);
-
- for (unsigned int i = 1; i < c->len; i++)
- if (likely (c->glyphs[i] != component[i]))
- return TRACE_RETURN (false);
-
- return TRACE_RETURN (true);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- unsigned int count = component.len;
- if (unlikely (count < 1)) return TRACE_RETURN (false);
-
- unsigned int end_offset = 0;
- bool is_mark_ligature = false;
- unsigned int total_component_count = 0;
-
- if (likely (!match_input (c, count,
- &component[1],
- match_glyph,
- NULL,
- &end_offset,
- &is_mark_ligature,
- &total_component_count)))
- return TRACE_RETURN (false);
-
- /* Deal, we are forming the ligature. */
- c->buffer->merge_clusters (c->buffer->idx, c->buffer->idx + end_offset);
-
- ligate_input (c,
- count,
- &component[1],
- ligGlyph,
- match_glyph,
- NULL,
- is_mark_ligature,
- total_component_count);
-
- return TRACE_RETURN (true);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- GlyphID ligature,
- Supplier<GlyphID> &components, /* Starting from second */
- unsigned int num_components /* Including first component */)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- ligGlyph = ligature;
- if (unlikely (!component.serialize (c, components, num_components))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- public:
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (ligGlyph.sanitize (c) && component.sanitize (c));
- }
-
- protected:
- GlyphID ligGlyph; /* GlyphID of ligature to substitute */
- HeadlessArrayOf<GlyphID>
- component; /* Array of component GlyphIDs--start
- * with the second component--ordered
- * in writing direction */
- public:
- DEFINE_SIZE_ARRAY (4, component);
-};
-
-struct LigatureSet
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- unsigned int num_ligs = ligature.len;
- for (unsigned int i = 0; i < num_ligs; i++)
- (this+ligature[i]).closure (c);
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- unsigned int num_ligs = ligature.len;
- for (unsigned int i = 0; i < num_ligs; i++)
- (this+ligature[i]).collect_glyphs (c);
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- unsigned int num_ligs = ligature.len;
- for (unsigned int i = 0; i < num_ligs; i++)
- {
- const Ligature &lig = this+ligature[i];
- if (lig.would_apply (c))
- return TRACE_RETURN (true);
- }
- return TRACE_RETURN (false);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- unsigned int num_ligs = ligature.len;
- for (unsigned int i = 0; i < num_ligs; i++)
- {
- const Ligature &lig = this+ligature[i];
- if (lig.apply (c)) return TRACE_RETURN (true);
- }
-
- return TRACE_RETURN (false);
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &ligatures,
- Supplier<unsigned int> &component_count_list,
- unsigned int num_ligatures,
- Supplier<GlyphID> &component_list /* Starting from second for each ligature */)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!ligature.serialize (c, num_ligatures))) return TRACE_RETURN (false);
- for (unsigned int i = 0; i < num_ligatures; i++)
- if (unlikely (!ligature[i].serialize (c, this).serialize (c,
- ligatures[i],
- component_list,
- component_count_list[i]))) return TRACE_RETURN (false);
- ligatures.advance (num_ligatures);
- component_count_list.advance (num_ligatures);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (ligature.sanitize (c, this));
- }
-
- protected:
- OffsetArrayOf<Ligature>
- ligature; /* Array LigatureSet tables
- * ordered by preference */
- public:
- DEFINE_SIZE_ARRAY (2, ligature);
-};
-
-struct LigatureSubstFormat1
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- if (c->glyphs->has (iter.get_glyph ()))
- (this+ligatureSet[iter.get_coverage ()]).closure (c);
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- c->input->add (iter.get_glyph ());
- (this+ligatureSet[iter.get_coverage ()]).collect_glyphs (c);
- }
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- unsigned int index = (this+coverage).get_coverage (c->glyphs[0]);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- const LigatureSet &lig_set = this+ligatureSet[index];
- return TRACE_RETURN (lig_set.would_apply (c));
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- hb_codepoint_t glyph_id = c->buffer->cur().codepoint;
-
- unsigned int index = (this+coverage).get_coverage (glyph_id);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- const LigatureSet &lig_set = this+ligatureSet[index];
- return TRACE_RETURN (lig_set.apply (c));
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &first_glyphs,
- Supplier<unsigned int> &ligature_per_first_glyph_count_list,
- unsigned int num_first_glyphs,
- Supplier<GlyphID> &ligatures_list,
- Supplier<unsigned int> &component_count_list,
- Supplier<GlyphID> &component_list /* Starting from second for each ligature */)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (*this))) return TRACE_RETURN (false);
- if (unlikely (!ligatureSet.serialize (c, num_first_glyphs))) return TRACE_RETURN (false);
- for (unsigned int i = 0; i < num_first_glyphs; i++)
- if (unlikely (!ligatureSet[i].serialize (c, this).serialize (c,
- ligatures_list,
- component_count_list,
- ligature_per_first_glyph_count_list[i],
- component_list))) return TRACE_RETURN (false);
- ligature_per_first_glyph_count_list.advance (num_first_glyphs);
- if (unlikely (!coverage.serialize (c, this).serialize (c, first_glyphs, num_first_glyphs))) return TRACE_RETURN (false);
- return TRACE_RETURN (true);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- return TRACE_RETURN (coverage.sanitize (c, this) && ligatureSet.sanitize (c, this));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 1 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of Substitution table */
- OffsetArrayOf<LigatureSet>
- ligatureSet; /* Array LigatureSet tables
- * ordered by Coverage Index */
- public:
- DEFINE_SIZE_ARRAY (6, ligatureSet);
-};
-
-struct LigatureSubst
-{
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- switch (u.format) {
- case 1: return TRACE_RETURN (c->process (u.format1));
- default:return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool serialize (hb_serialize_context_t *c,
- Supplier<GlyphID> &first_glyphs,
- Supplier<unsigned int> &ligature_per_first_glyph_count_list,
- unsigned int num_first_glyphs,
- Supplier<GlyphID> &ligatures_list,
- Supplier<unsigned int> &component_count_list,
- Supplier<GlyphID> &component_list /* Starting from second for each ligature */)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!c->extend_min (u.format))) return TRACE_RETURN (false);
- unsigned int format = 1;
- u.format.set (format);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.serialize (c, first_glyphs, ligature_per_first_glyph_count_list, num_first_glyphs,
- ligatures_list, component_count_list, component_list));
- default:return TRACE_RETURN (false);
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!u.format.sanitize (c)) return TRACE_RETURN (false);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.sanitize (c));
- default:return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- USHORT format; /* Format identifier */
- LigatureSubstFormat1 format1;
- } u;
-};
-
-
-struct ContextSubst : Context {};
-
-struct ChainContextSubst : ChainContext {};
-
-struct ExtensionSubst : Extension<ExtensionSubst>
-{
- typedef struct SubstLookupSubTable LookupSubTable;
-
- inline bool is_reverse (void) const;
-};
-
-
-struct ReverseChainSingleSubstFormat1
-{
- inline void closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- const OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
-
- unsigned int count;
-
- count = backtrack.len;
- for (unsigned int i = 0; i < count; i++)
- if (!(this+backtrack[i]).intersects (c->glyphs))
- return;
-
- count = lookahead.len;
- for (unsigned int i = 0; i < count; i++)
- if (!(this+lookahead[i]).intersects (c->glyphs))
- return;
-
- const ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
- Coverage::Iter iter;
- for (iter.init (this+coverage); iter.more (); iter.next ()) {
- if (c->glyphs->has (iter.get_glyph ()))
- c->glyphs->add (substitute[iter.get_coverage ()]);
- }
- }
-
- inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
-
- const OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
-
- unsigned int count;
-
- (this+coverage).add_coverage (c->input);
-
- count = backtrack.len;
- for (unsigned int i = 0; i < count; i++)
- (this+backtrack[i]).add_coverage (c->before);
-
- count = lookahead.len;
- for (unsigned int i = 0; i < count; i++)
- (this+lookahead[i]).add_coverage (c->after);
-
- const ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
- count = substitute.len;
- for (unsigned int i = 0; i < count; i++)
- c->output->add (substitute[i]);
- }
-
- inline const Coverage &get_coverage (void) const
- {
- return this+coverage;
- }
-
- inline bool would_apply (hb_would_apply_context_t *c) const
- {
- TRACE_WOULD_APPLY (this);
- return TRACE_RETURN (c->len == 1 && (this+coverage).get_coverage (c->glyphs[0]) != NOT_COVERED);
- }
-
- inline bool apply (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- if (unlikely (c->nesting_level_left != MAX_NESTING_LEVEL))
- return TRACE_RETURN (false); /* No chaining to this type */
-
- unsigned int index = (this+coverage).get_coverage (c->buffer->cur().codepoint);
- if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
-
- const OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
- const ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
-
- if (match_backtrack (c,
- backtrack.len, (USHORT *) backtrack.array,
- match_coverage, this) &&
- match_lookahead (c,
- lookahead.len, (USHORT *) lookahead.array,
- match_coverage, this,
- 1))
- {
- c->replace_glyph_inplace (substitute[index]);
- c->buffer->idx--; /* Reverse! */
- return TRACE_RETURN (true);
- }
-
- return TRACE_RETURN (false);
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!(coverage.sanitize (c, this) && backtrack.sanitize (c, this)))
- return TRACE_RETURN (false);
- OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
- if (!lookahead.sanitize (c, this))
- return TRACE_RETURN (false);
- ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
- return TRACE_RETURN (substitute.sanitize (c));
- }
-
- protected:
- USHORT format; /* Format identifier--format = 1 */
- OffsetTo<Coverage>
- coverage; /* Offset to Coverage table--from
- * beginning of table */
- OffsetArrayOf<Coverage>
- backtrack; /* Array of coverage tables
- * in backtracking sequence, in glyph
- * sequence order */
- OffsetArrayOf<Coverage>
- lookaheadX; /* Array of coverage tables
- * in lookahead sequence, in glyph
- * sequence order */
- ArrayOf<GlyphID>
- substituteX; /* Array of substitute
- * GlyphIDs--ordered by Coverage Index */
- public:
- DEFINE_SIZE_MIN (10);
-};
-
-struct ReverseChainSingleSubst
-{
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- switch (u.format) {
- case 1: return TRACE_RETURN (c->process (u.format1));
- default:return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (!u.format.sanitize (c)) return TRACE_RETURN (false);
- switch (u.format) {
- case 1: return TRACE_RETURN (u.format1.sanitize (c));
- default:return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- USHORT format; /* Format identifier */
- ReverseChainSingleSubstFormat1 format1;
- } u;
-};
-
-
-
-/*
- * SubstLookup
- */
-
-struct SubstLookupSubTable
-{
- friend struct SubstLookup;
-
- enum Type {
- Single = 1,
- Multiple = 2,
- Alternate = 3,
- Ligature = 4,
- Context = 5,
- ChainContext = 6,
- Extension = 7,
- ReverseChainSingle = 8
- };
-
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c, unsigned int lookup_type) const
- {
- TRACE_PROCESS (this);
- switch (lookup_type) {
- case Single: return TRACE_RETURN (u.single.process (c));
- case Multiple: return TRACE_RETURN (u.multiple.process (c));
- case Alternate: return TRACE_RETURN (u.alternate.process (c));
- case Ligature: return TRACE_RETURN (u.ligature.process (c));
- case Context: return TRACE_RETURN (u.context.process (c));
- case ChainContext: return TRACE_RETURN (u.chainContext.process (c));
- case Extension: return TRACE_RETURN (u.extension.process (c));
- case ReverseChainSingle: return TRACE_RETURN (u.reverseChainContextSingle.process (c));
- default: return TRACE_RETURN (c->default_return_value ());
- }
- }
-
- inline bool sanitize (hb_sanitize_context_t *c, unsigned int lookup_type) {
- TRACE_SANITIZE (this);
- if (!u.header.sub_format.sanitize (c))
- return TRACE_RETURN (false);
- switch (lookup_type) {
- case Single: return TRACE_RETURN (u.single.sanitize (c));
- case Multiple: return TRACE_RETURN (u.multiple.sanitize (c));
- case Alternate: return TRACE_RETURN (u.alternate.sanitize (c));
- case Ligature: return TRACE_RETURN (u.ligature.sanitize (c));
- case Context: return TRACE_RETURN (u.context.sanitize (c));
- case ChainContext: return TRACE_RETURN (u.chainContext.sanitize (c));
- case Extension: return TRACE_RETURN (u.extension.sanitize (c));
- case ReverseChainSingle: return TRACE_RETURN (u.reverseChainContextSingle.sanitize (c));
- default: return TRACE_RETURN (true);
- }
- }
-
- protected:
- union {
- struct {
- USHORT sub_format;
- } header;
- SingleSubst single;
- MultipleSubst multiple;
- AlternateSubst alternate;
- LigatureSubst ligature;
- ContextSubst context;
- ChainContextSubst chainContext;
- ExtensionSubst extension;
- ReverseChainSingleSubst reverseChainContextSingle;
- } u;
- public:
- DEFINE_SIZE_UNION (2, header.sub_format);
-};
-
-
-struct SubstLookup : Lookup
-{
- inline const SubstLookupSubTable& get_subtable (unsigned int i) const
- { return this+CastR<OffsetArrayOf<SubstLookupSubTable> > (subTable)[i]; }
-
- inline static bool lookup_type_is_reverse (unsigned int lookup_type)
- { return lookup_type == SubstLookupSubTable::ReverseChainSingle; }
-
- inline bool is_reverse (void) const
- {
- unsigned int type = get_type ();
- if (unlikely (type == SubstLookupSubTable::Extension))
- return CastR<ExtensionSubst> (get_subtable(0)).is_reverse ();
- return lookup_type_is_reverse (type);
- }
-
- template <typename context_t>
- inline typename context_t::return_t process (context_t *c) const
- {
- TRACE_PROCESS (this);
- unsigned int lookup_type = get_type ();
- unsigned int count = get_subtable_count ();
- for (unsigned int i = 0; i < count; i++) {
- typename context_t::return_t r = get_subtable (i).process (c, lookup_type);
- if (c->stop_sublookup_iteration (r))
- return TRACE_RETURN (r);
- }
- return TRACE_RETURN (c->default_return_value ());
- }
- template <typename context_t>
- static inline typename context_t::return_t process_recurse_func (context_t *c, unsigned int lookup_index);
-
- inline hb_closure_context_t::return_t closure (hb_closure_context_t *c) const
- {
- TRACE_CLOSURE (this);
- c->set_recurse_func (process_recurse_func<hb_closure_context_t>);
- return TRACE_RETURN (process (c));
- }
-
- inline hb_collect_glyphs_context_t::return_t collect_glyphs_lookup (hb_collect_glyphs_context_t *c) const
- {
- TRACE_COLLECT_GLYPHS (this);
- c->set_recurse_func (process_recurse_func<hb_collect_glyphs_context_t>);
- return TRACE_RETURN (process (c));
- }
-
- template <typename set_t>
- inline void add_coverage (set_t *glyphs) const
- {
- hb_get_coverage_context_t c;
- const Coverage *last = NULL;
- unsigned int count = get_subtable_count ();
- for (unsigned int i = 0; i < count; i++) {
- const Coverage *coverage = &get_subtable (i).process (&c, get_type ());
- if (coverage != last) {
- coverage->add_coverage (glyphs);
- last = coverage;
- }
- }
- }
-
- inline bool would_apply (hb_would_apply_context_t *c, const hb_set_digest_t *digest) const
- {
- TRACE_WOULD_APPLY (this);
- if (unlikely (!c->len)) return TRACE_RETURN (false);
- if (!digest->may_have (c->glyphs[0])) return TRACE_RETURN (false);
- return TRACE_RETURN (process (c));
- }
-
- inline bool apply_once (hb_apply_context_t *c) const
- {
- TRACE_APPLY (this);
- if (!c->check_glyph_property (&c->buffer->cur(), c->lookup_props, &c->property))
- return TRACE_RETURN (false);
- return TRACE_RETURN (process (c));
- }
-
- static bool apply_recurse_func (hb_apply_context_t *c, unsigned int lookup_index);
- inline bool apply_string (hb_apply_context_t *c, const hb_set_digest_t *digest) const
- {
- bool ret = false;
-
- if (unlikely (!c->buffer->len || !c->lookup_mask))
- return false;
-
- c->set_recurse_func (apply_recurse_func);
- c->set_lookup (*this);
-
- if (likely (!is_reverse ()))
- {
- /* in/out forward substitution */
- c->buffer->clear_output ();
- c->buffer->idx = 0;
-
- while (c->buffer->idx < c->buffer->len)
- {
- if ((c->buffer->cur().mask & c->lookup_mask) &&
- digest->may_have (c->buffer->cur().codepoint) &&
- apply_once (c))
- ret = true;
- else
- c->buffer->next_glyph ();
- }
- if (ret)
- c->buffer->swap_buffers ();
- }
- else
- {
- /* in-place backward substitution */
- c->buffer->remove_output ();
- c->buffer->idx = c->buffer->len - 1;
- do
- {
- if ((c->buffer->cur().mask & c->lookup_mask) &&
- digest->may_have (c->buffer->cur().codepoint) &&
- apply_once (c))
- ret = true;
- else
- c->buffer->idx--;
-
- }
- while ((int) c->buffer->idx >= 0);
- }
-
- return ret;
- }
-
- inline SubstLookupSubTable& serialize_subtable (hb_serialize_context_t *c,
- unsigned int i)
- { return CastR<OffsetArrayOf<SubstLookupSubTable> > (subTable)[i].serialize (c, this); }
-
- inline bool serialize_single (hb_serialize_context_t *c,
- uint32_t lookup_props,
- Supplier<GlyphID> &glyphs,
- Supplier<GlyphID> &substitutes,
- unsigned int num_glyphs)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!Lookup::serialize (c, SubstLookupSubTable::Single, lookup_props, 1))) return TRACE_RETURN (false);
- return TRACE_RETURN (serialize_subtable (c, 0).u.single.serialize (c, glyphs, substitutes, num_glyphs));
- }
-
- inline bool serialize_multiple (hb_serialize_context_t *c,
- uint32_t lookup_props,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &substitute_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &substitute_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!Lookup::serialize (c, SubstLookupSubTable::Multiple, lookup_props, 1))) return TRACE_RETURN (false);
- return TRACE_RETURN (serialize_subtable (c, 0).u.multiple.serialize (c, glyphs, substitute_len_list, num_glyphs,
- substitute_glyphs_list));
- }
-
- inline bool serialize_alternate (hb_serialize_context_t *c,
- uint32_t lookup_props,
- Supplier<GlyphID> &glyphs,
- Supplier<unsigned int> &alternate_len_list,
- unsigned int num_glyphs,
- Supplier<GlyphID> &alternate_glyphs_list)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!Lookup::serialize (c, SubstLookupSubTable::Alternate, lookup_props, 1))) return TRACE_RETURN (false);
- return TRACE_RETURN (serialize_subtable (c, 0).u.alternate.serialize (c, glyphs, alternate_len_list, num_glyphs,
- alternate_glyphs_list));
- }
-
- inline bool serialize_ligature (hb_serialize_context_t *c,
- uint32_t lookup_props,
- Supplier<GlyphID> &first_glyphs,
- Supplier<unsigned int> &ligature_per_first_glyph_count_list,
- unsigned int num_first_glyphs,
- Supplier<GlyphID> &ligatures_list,
- Supplier<unsigned int> &component_count_list,
- Supplier<GlyphID> &component_list /* Starting from second for each ligature */)
- {
- TRACE_SERIALIZE (this);
- if (unlikely (!Lookup::serialize (c, SubstLookupSubTable::Ligature, lookup_props, 1))) return TRACE_RETURN (false);
- return TRACE_RETURN (serialize_subtable (c, 0).u.ligature.serialize (c, first_glyphs, ligature_per_first_glyph_count_list, num_first_glyphs,
- ligatures_list, component_count_list, component_list));
- }
-
- inline bool sanitize (hb_sanitize_context_t *c)
- {
- TRACE_SANITIZE (this);
- if (unlikely (!Lookup::sanitize (c))) return TRACE_RETURN (false);
- OffsetArrayOf<SubstLookupSubTable> &list = CastR<OffsetArrayOf<SubstLookupSubTable> > (subTable);
- if (unlikely (!list.sanitize (c, this, get_type ()))) return TRACE_RETURN (false);
-
- if (unlikely (get_type () == SubstLookupSubTable::Extension))
- {
- /* The spec says all subtables of an Extension lookup should
- * have the same type. This is specially important if one has
- * a reverse type!
- *
- * We just check that they are all either forward, or reverse. */
- unsigned int type = get_subtable (0).u.extension.get_type ();
- unsigned int count = get_subtable_count ();
- for (unsigned int i = 1; i < count; i++)
- if (get_subtable (i).u.extension.get_type () != type)
- return TRACE_RETURN (false);
- }
- return TRACE_RETURN (true);
- }
-};
-
-typedef OffsetListOf<SubstLookup> SubstLookupList;
-
-/*
- * GSUB -- The Glyph Substitution Table
- */
-
-struct GSUB : GSUBGPOS
-{
- static const hb_tag_t Tag = HB_OT_TAG_GSUB;
-
- inline const SubstLookup& get_lookup (unsigned int i) const
- { return CastR<SubstLookup> (GSUBGPOS::get_lookup (i)); }
-
- static inline void substitute_start (hb_font_t *font, hb_buffer_t *buffer);
- static inline void substitute_finish (hb_font_t *font, hb_buffer_t *buffer);
-
- inline bool sanitize (hb_sanitize_context_t *c) {
- TRACE_SANITIZE (this);
- if (unlikely (!GSUBGPOS::sanitize (c))) return TRACE_RETURN (false);
- OffsetTo<SubstLookupList> &list = CastR<OffsetTo<SubstLookupList> > (lookupList);
- return TRACE_RETURN (list.sanitize (c, this));
- }
- public:
- DEFINE_SIZE_STATIC (10);
-};
-
-
-void
-GSUB::substitute_start (hb_font_t *font, hb_buffer_t *buffer)
-{
- HB_BUFFER_ALLOCATE_VAR (buffer, glyph_props);
- HB_BUFFER_ALLOCATE_VAR (buffer, lig_props);
- HB_BUFFER_ALLOCATE_VAR (buffer, syllable);
-
- const GDEF &gdef = *hb_ot_layout_from_face (font->face)->gdef;
- unsigned int count = buffer->len;
- for (unsigned int i = 0; i < count; i++) {
- buffer->info[i].lig_props() = buffer->info[i].syllable() = 0;
- buffer->info[i].glyph_props() = gdef.get_glyph_props (buffer->info[i].codepoint);
- }
-}
-
-void
-GSUB::substitute_finish (hb_font_t *font HB_UNUSED, hb_buffer_t *buffer HB_UNUSED)
-{
-}
-
-
-/* Out-of-class implementation for methods recursing */
-
-inline bool ExtensionSubst::is_reverse (void) const
-{
- unsigned int type = get_type ();
- if (unlikely (type == SubstLookupSubTable::Extension))
- return CastR<ExtensionSubst> (get_subtable<SubstLookupSubTable>()).is_reverse ();
- return SubstLookup::lookup_type_is_reverse (type);
-}
-
-template <typename context_t>
-inline typename context_t::return_t SubstLookup::process_recurse_func (context_t *c, unsigned int lookup_index)
-{
- const GSUB &gsub = *(hb_ot_layout_from_face (c->face)->gsub);
- const SubstLookup &l = gsub.get_lookup (lookup_index);
- return l.process (c);
-}
-
-inline bool SubstLookup::apply_recurse_func (hb_apply_context_t *c, unsigned int lookup_index)
-{
- const GSUB &gsub = *(hb_ot_layout_from_face (c->face)->gsub);
- const SubstLookup &l = gsub.get_lookup (lookup_index);
- unsigned int saved_lookup_props = c->lookup_props;
- unsigned int saved_property = c->property;
- c->set_lookup (l);
- bool ret = l.apply_once (c);
- c->lookup_props = saved_lookup_props;
- c->property = saved_property;
- return ret;
-}
-
-
-} /* namespace OT */
-
-
-#endif /* HB_OT_LAYOUT_GSUB_TABLE_HH */