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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-cff2-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-cff2-table.hh
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+/*
+ * Copyright © 2018 Adobe 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.
+ *
+ * Adobe Author(s): Michiharu Ariza
+ */
+
+#ifndef HB_OT_CFF2_TABLE_HH
+#define HB_OT_CFF2_TABLE_HH
+
+#include "hb-ot-head-table.hh"
+#include "hb-ot-cff-common.hh"
+#include "hb-subset-cff2.hh"
+
+namespace CFF {
+
+/*
+ * CFF2 -- Compact Font Format (CFF) Version 2
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/cff2
+ */
+#define HB_OT_TAG_cff2 HB_TAG('C','F','F','2')
+
+typedef CFFIndex<HBUINT32> CFF2Index;
+template <typename Type> struct CFF2IndexOf : CFFIndexOf<HBUINT32, Type> {};
+
+typedef CFF2Index CFF2CharStrings;
+typedef FDArray<HBUINT32> CFF2FDArray;
+typedef Subrs<HBUINT32> CFF2Subrs;
+
+typedef FDSelect3_4<HBUINT32, HBUINT16> FDSelect4;
+typedef FDSelect3_4_Range<HBUINT32, HBUINT16> FDSelect4_Range;
+
+struct CFF2FDSelect
+{
+ bool sanitize (hb_sanitize_context_t *c, unsigned int fdcount) const
+ {
+ TRACE_SANITIZE (this);
+
+ return_trace (likely (c->check_struct (this) && (format == 0 || format == 3 || format == 4) &&
+ (format == 0)?
+ u.format0.sanitize (c, fdcount):
+ ((format == 3)?
+ u.format3.sanitize (c, fdcount):
+ u.format4.sanitize (c, fdcount))));
+ }
+
+ bool serialize (hb_serialize_context_t *c, const CFF2FDSelect &src, unsigned int num_glyphs)
+ {
+ TRACE_SERIALIZE (this);
+ unsigned int size = src.get_size (num_glyphs);
+ CFF2FDSelect *dest = c->allocate_size<CFF2FDSelect> (size);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ memcpy (dest, &src, size);
+ return_trace (true);
+ }
+
+ unsigned int calculate_serialized_size (unsigned int num_glyphs) const
+ { return get_size (num_glyphs); }
+
+ unsigned int get_size (unsigned int num_glyphs) const
+ {
+ unsigned int size = format.static_size;
+ if (format == 0)
+ size += u.format0.get_size (num_glyphs);
+ else if (format == 3)
+ size += u.format3.get_size ();
+ else
+ size += u.format4.get_size ();
+ return size;
+ }
+
+ hb_codepoint_t get_fd (hb_codepoint_t glyph) const
+ {
+ if (this == &Null(CFF2FDSelect))
+ return 0;
+ if (format == 0)
+ return u.format0.get_fd (glyph);
+ else if (format == 3)
+ return u.format3.get_fd (glyph);
+ else
+ return u.format4.get_fd (glyph);
+ }
+
+ HBUINT8 format;
+ union {
+ FDSelect0 format0;
+ FDSelect3 format3;
+ FDSelect4 format4;
+ } u;
+
+ DEFINE_SIZE_MIN (2);
+};
+
+struct CFF2VariationStore
+{
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (likely (c->check_struct (this)) && c->check_range (&varStore, size) && varStore.sanitize (c));
+ }
+
+ bool serialize (hb_serialize_context_t *c, const CFF2VariationStore *varStore)
+ {
+ TRACE_SERIALIZE (this);
+ unsigned int size_ = varStore->get_size ();
+ CFF2VariationStore *dest = c->allocate_size<CFF2VariationStore> (size_);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ memcpy (dest, varStore, size_);
+ return_trace (true);
+ }
+
+ unsigned int get_size () const { return HBUINT16::static_size + size; }
+
+ HBUINT16 size;
+ VariationStore varStore;
+
+ DEFINE_SIZE_MIN (2 + VariationStore::min_size);
+};
+
+struct CFF2TopDictValues : TopDictValues<>
+{
+ void init ()
+ {
+ TopDictValues<>::init ();
+ vstoreOffset = 0;
+ FDSelectOffset = 0;
+ }
+ void fini () { TopDictValues<>::fini (); }
+
+ unsigned int calculate_serialized_size () const
+ {
+ unsigned int size = 0;
+ for (unsigned int i = 0; i < get_count (); i++)
+ {
+ OpCode op = get_value (i).op;
+ switch (op)
+ {
+ case OpCode_vstore:
+ case OpCode_FDSelect:
+ size += OpCode_Size (OpCode_longintdict) + 4 + OpCode_Size (op);
+ break;
+ default:
+ size += TopDictValues<>::calculate_serialized_op_size (get_value (i));
+ break;
+ }
+ }
+ return size;
+ }
+
+ unsigned int vstoreOffset;
+ unsigned int FDSelectOffset;
+};
+
+struct CFF2TopDictOpSet : TopDictOpSet<>
+{
+ static void process_op (OpCode op, NumInterpEnv& env, CFF2TopDictValues& dictval)
+ {
+ switch (op) {
+ case OpCode_FontMatrix:
+ {
+ DictVal val;
+ val.init ();
+ dictval.add_op (op, env.substr);
+ env.clear_args ();
+ }
+ break;
+
+ case OpCode_vstore:
+ dictval.vstoreOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+ case OpCode_FDSelect:
+ dictval.FDSelectOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ default:
+ SUPER::process_op (op, env, dictval);
+ /* Record this operand below if stack is empty, otherwise done */
+ if (!env.argStack.is_empty ()) return;
+ }
+
+ if (unlikely (env.in_error ())) return;
+
+ dictval.add_op (op, env.substr);
+ }
+
+ typedef TopDictOpSet<> SUPER;
+};
+
+struct CFF2FontDictValues : DictValues<OpStr>
+{
+ void init ()
+ {
+ DictValues<OpStr>::init ();
+ privateDictInfo.init ();
+ }
+ void fini () { DictValues<OpStr>::fini (); }
+
+ TableInfo privateDictInfo;
+};
+
+struct CFF2FontDictOpSet : DictOpSet
+{
+ static void process_op (OpCode op, NumInterpEnv& env, CFF2FontDictValues& dictval)
+ {
+ switch (op) {
+ case OpCode_Private:
+ dictval.privateDictInfo.offset = env.argStack.pop_uint ();
+ dictval.privateDictInfo.size = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ default:
+ SUPER::process_op (op, env);
+ if (!env.argStack.is_empty ())
+ return;
+ }
+
+ if (unlikely (env.in_error ())) return;
+
+ dictval.add_op (op, env.substr);
+ }
+
+ private:
+ typedef DictOpSet SUPER;
+};
+
+template <typename VAL>
+struct CFF2PrivateDictValues_Base : DictValues<VAL>
+{
+ void init ()
+ {
+ DictValues<VAL>::init ();
+ subrsOffset = 0;
+ localSubrs = &Null(CFF2Subrs);
+ ivs = 0;
+ }
+ void fini () { DictValues<VAL>::fini (); }
+
+ unsigned int calculate_serialized_size () const
+ {
+ unsigned int size = 0;
+ for (unsigned int i = 0; i < DictValues<VAL>::get_count; i++)
+ if (DictValues<VAL>::get_value (i).op == OpCode_Subrs)
+ size += OpCode_Size (OpCode_shortint) + 2 + OpCode_Size (OpCode_Subrs);
+ else
+ size += DictValues<VAL>::get_value (i).str.len;
+ return size;
+ }
+
+ unsigned int subrsOffset;
+ const CFF2Subrs *localSubrs;
+ unsigned int ivs;
+};
+
+typedef CFF2PrivateDictValues_Base<OpStr> CFF2PrivateDictValues_Subset;
+typedef CFF2PrivateDictValues_Base<NumDictVal> CFF2PrivateDictValues;
+
+struct CFF2PrivDictInterpEnv : NumInterpEnv
+{
+ void init (const ByteStr &str)
+ {
+ NumInterpEnv::init (str);
+ ivs = 0;
+ seen_vsindex = false;
+ }
+
+ void process_vsindex ()
+ {
+ if (likely (!seen_vsindex))
+ {
+ set_ivs (argStack.pop_uint ());
+ }
+ seen_vsindex = true;
+ }
+
+ unsigned int get_ivs () const { return ivs; }
+ void set_ivs (unsigned int ivs_) { ivs = ivs_; }
+
+ protected:
+ unsigned int ivs;
+ bool seen_vsindex;
+};
+
+struct CFF2PrivateDictOpSet : DictOpSet
+{
+ static void process_op (OpCode op, CFF2PrivDictInterpEnv& env, CFF2PrivateDictValues& dictval)
+ {
+ NumDictVal val;
+ val.init ();
+
+ switch (op) {
+ case OpCode_StdHW:
+ case OpCode_StdVW:
+ case OpCode_BlueScale:
+ case OpCode_BlueShift:
+ case OpCode_BlueFuzz:
+ case OpCode_ExpansionFactor:
+ case OpCode_LanguageGroup:
+ val.single_val = env.argStack.pop_num ();
+ env.clear_args ();
+ break;
+ case OpCode_BlueValues:
+ case OpCode_OtherBlues:
+ case OpCode_FamilyBlues:
+ case OpCode_FamilyOtherBlues:
+ case OpCode_StemSnapH:
+ case OpCode_StemSnapV:
+ env.clear_args ();
+ break;
+ case OpCode_Subrs:
+ dictval.subrsOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+ case OpCode_vsindexdict:
+ env.process_vsindex ();
+ dictval.ivs = env.get_ivs ();
+ env.clear_args ();
+ break;
+ case OpCode_blenddict:
+ break;
+
+ default:
+ DictOpSet::process_op (op, env);
+ if (!env.argStack.is_empty ()) return;
+ break;
+ }
+
+ if (unlikely (env.in_error ())) return;
+
+ dictval.add_op (op, env.substr, val);
+ }
+};
+
+struct CFF2PrivateDictOpSet_Subset : DictOpSet
+{
+ static void process_op (OpCode op, CFF2PrivDictInterpEnv& env, CFF2PrivateDictValues_Subset& dictval)
+ {
+ switch (op) {
+ case OpCode_BlueValues:
+ case OpCode_OtherBlues:
+ case OpCode_FamilyBlues:
+ case OpCode_FamilyOtherBlues:
+ case OpCode_StdHW:
+ case OpCode_StdVW:
+ case OpCode_BlueScale:
+ case OpCode_BlueShift:
+ case OpCode_BlueFuzz:
+ case OpCode_StemSnapH:
+ case OpCode_StemSnapV:
+ case OpCode_LanguageGroup:
+ case OpCode_ExpansionFactor:
+ env.clear_args ();
+ break;
+
+ case OpCode_blenddict:
+ env.clear_args ();
+ return;
+
+ case OpCode_Subrs:
+ dictval.subrsOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ default:
+ SUPER::process_op (op, env);
+ if (!env.argStack.is_empty ()) return;
+ break;
+ }
+
+ if (unlikely (env.in_error ())) return;
+
+ dictval.add_op (op, env.substr);
+ }
+
+ private:
+ typedef DictOpSet SUPER;
+};
+
+typedef DictInterpreter<CFF2TopDictOpSet, CFF2TopDictValues> CFF2TopDict_Interpreter;
+typedef DictInterpreter<CFF2FontDictOpSet, CFF2FontDictValues> CFF2FontDict_Interpreter;
+
+}; /* namespace CFF */
+
+namespace OT {
+
+using namespace CFF;
+
+struct cff2
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_cff2;
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ likely (version.major == 2));
+ }
+
+ template <typename PRIVOPSET, typename PRIVDICTVAL>
+ struct accelerator_templ_t
+ {
+ void init (hb_face_t *face)
+ {
+ topDict.init ();
+ fontDicts.init ();
+ privateDicts.init ();
+
+ this->blob = sc.reference_table<cff2> (face);
+
+ /* setup for run-time santization */
+ sc.init (this->blob);
+ sc.start_processing ();
+
+ const OT::cff2 *cff2 = this->blob->template as<OT::cff2> ();
+
+ if (cff2 == &Null(OT::cff2))
+ { fini (); return; }
+
+ { /* parse top dict */
+ ByteStr topDictStr (cff2 + cff2->topDict, cff2->topDictSize);
+ if (unlikely (!topDictStr.sanitize (&sc))) { fini (); return; }
+ CFF2TopDict_Interpreter top_interp;
+ top_interp.env.init (topDictStr);
+ topDict.init ();
+ if (unlikely (!top_interp.interpret (topDict))) { fini (); return; }
+ }
+
+ globalSubrs = &StructAtOffset<CFF2Subrs> (cff2, cff2->topDict + cff2->topDictSize);
+ varStore = &StructAtOffsetOrNull<CFF2VariationStore> (cff2, topDict.vstoreOffset);
+ charStrings = &StructAtOffsetOrNull<CFF2CharStrings> (cff2, topDict.charStringsOffset);
+ fdArray = &StructAtOffsetOrNull<CFF2FDArray> (cff2, topDict.FDArrayOffset);
+ fdSelect = &StructAtOffsetOrNull<CFF2FDSelect> (cff2, topDict.FDSelectOffset);
+
+ if (((varStore != &Null(CFF2VariationStore)) && unlikely (!varStore->sanitize (&sc))) ||
+ (charStrings == &Null(CFF2CharStrings)) || unlikely (!charStrings->sanitize (&sc)) ||
+ (globalSubrs == &Null(CFF2Subrs)) || unlikely (!globalSubrs->sanitize (&sc)) ||
+ (fdArray == &Null(CFF2FDArray)) || unlikely (!fdArray->sanitize (&sc)) ||
+ (((fdSelect != &Null(CFF2FDSelect)) && unlikely (!fdSelect->sanitize (&sc, fdArray->count)))))
+ { fini (); return; }
+
+ num_glyphs = charStrings->count;
+ if (num_glyphs != sc.get_num_glyphs ())
+ { fini (); return; }
+
+ fdCount = fdArray->count;
+ privateDicts.resize (fdCount);
+
+ /* parse font dicts and gather private dicts */
+ for (unsigned int i = 0; i < fdCount; i++)
+ {
+ const ByteStr fontDictStr = (*fdArray)[i];
+ if (unlikely (!fontDictStr.sanitize (&sc))) { fini (); return; }
+ CFF2FontDictValues *font;
+ CFF2FontDict_Interpreter font_interp;
+ font_interp.env.init (fontDictStr);
+ font = fontDicts.push ();
+ if (unlikely (font == &Crap(CFF2FontDictValues))) { fini (); return; }
+ font->init ();
+ if (unlikely (!font_interp.interpret (*font))) { fini (); return; }
+
+ const ByteStr privDictStr (StructAtOffsetOrNull<UnsizedByteStr> (cff2, font->privateDictInfo.offset), font->privateDictInfo.size);
+ if (unlikely (!privDictStr.sanitize (&sc))) { fini (); return; }
+ DictInterpreter<PRIVOPSET, PRIVDICTVAL, CFF2PrivDictInterpEnv> priv_interp;
+ priv_interp.env.init(privDictStr);
+ privateDicts[i].init ();
+ if (unlikely (!priv_interp.interpret (privateDicts[i]))) { fini (); return; }
+
+ privateDicts[i].localSubrs = &StructAtOffsetOrNull<CFF2Subrs> (privDictStr.str, privateDicts[i].subrsOffset);
+ if (privateDicts[i].localSubrs != &Null(CFF2Subrs) &&
+ unlikely (!privateDicts[i].localSubrs->sanitize (&sc)))
+ { fini (); return; }
+ }
+ }
+
+ void fini ()
+ {
+ sc.end_processing ();
+ fontDicts.fini_deep ();
+ privateDicts.fini_deep ();
+ hb_blob_destroy (blob);
+ blob = nullptr;
+ }
+
+ bool is_valid () const { return blob != nullptr; }
+
+ protected:
+ hb_blob_t *blob;
+ hb_sanitize_context_t sc;
+
+ public:
+ CFF2TopDictValues topDict;
+ const CFF2Subrs *globalSubrs;
+ const CFF2VariationStore *varStore;
+ const CFF2CharStrings *charStrings;
+ const CFF2FDArray *fdArray;
+ const CFF2FDSelect *fdSelect;
+ unsigned int fdCount;
+
+ hb_vector_t<CFF2FontDictValues> fontDicts;
+ hb_vector_t<PRIVDICTVAL> privateDicts;
+
+ unsigned int num_glyphs;
+ };
+
+ struct accelerator_t : accelerator_templ_t<CFF2PrivateDictOpSet, CFF2PrivateDictValues>
+ {
+ HB_INTERNAL bool get_extents (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_glyph_extents_t *extents) const;
+ };
+
+ typedef accelerator_templ_t<CFF2PrivateDictOpSet_Subset, CFF2PrivateDictValues_Subset> accelerator_subset_t;
+
+ bool subset (hb_subset_plan_t *plan) const
+ {
+ hb_blob_t *cff2_prime = nullptr;
+
+ bool success = true;
+ if (hb_subset_cff2 (plan, &cff2_prime)) {
+ success = success && plan->add_table (HB_OT_TAG_cff2, cff2_prime);
+ hb_blob_t *head_blob = hb_sanitize_context_t().reference_table<head> (plan->source);
+ success = success && head_blob && plan->add_table (HB_OT_TAG_head, head_blob);
+ hb_blob_destroy (head_blob);
+ } else {
+ success = false;
+ }
+ hb_blob_destroy (cff2_prime);
+
+ return success;
+ }
+
+ public:
+ FixedVersion<HBUINT8> version; /* Version of CFF2 table. set to 0x0200u */
+ OffsetTo<TopDict, HBUINT8, false> topDict; /* headerSize = Offset to Top DICT. */
+ HBUINT16 topDictSize; /* Top DICT size */
+
+ public:
+ DEFINE_SIZE_STATIC (5);
+};
+
+struct cff2_accelerator_t : cff2::accelerator_t {};
+} /* namespace OT */
+
+#endif /* HB_OT_CFF2_TABLE_HH */