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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-cff1-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-cff1-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_CFF1_TABLE_HH
+#define HB_OT_CFF1_TABLE_HH
+
+#include "hb-ot-head-table.hh"
+#include "hb-ot-cff-common.hh"
+#include "hb-subset-cff1.hh"
+
+namespace CFF {
+
+/*
+ * CFF -- Compact Font Format (CFF)
+ * http://www.adobe.com/content/dam/acom/en/devnet/font/pdfs/5176.CFF.pdf
+ */
+#define HB_OT_TAG_cff1 HB_TAG('C','F','F',' ')
+
+#define CFF_UNDEF_SID CFF_UNDEF_CODE
+
+enum EncodingID { StandardEncoding = 0, ExpertEncoding = 1 };
+enum CharsetID { ISOAdobeCharset = 0, ExpertCharset = 1, ExpertSubsetCharset = 2 };
+
+typedef CFFIndex<HBUINT16> CFF1Index;
+template <typename Type> struct CFF1IndexOf : CFFIndexOf<HBUINT16, Type> {};
+
+typedef CFFIndex<HBUINT16> CFF1Index;
+typedef CFF1Index CFF1CharStrings;
+typedef FDArray<HBUINT16> CFF1FDArray;
+typedef Subrs<HBUINT16> CFF1Subrs;
+
+struct CFF1FDSelect : FDSelect {};
+
+/* Encoding */
+struct Encoding0 {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && codes[nCodes - 1].sanitize (c));
+ }
+
+ hb_codepoint_t get_code (hb_codepoint_t glyph) const
+ {
+ assert (glyph > 0);
+ glyph--;
+ if (glyph < nCodes)
+ {
+ return (hb_codepoint_t)codes[glyph];
+ }
+ else
+ return CFF_UNDEF_CODE;
+ }
+
+ unsigned int get_size () const
+ { return HBUINT8::static_size * (nCodes + 1); }
+
+ HBUINT8 nCodes;
+ HBUINT8 codes[VAR];
+
+ DEFINE_SIZE_ARRAY(1, codes);
+};
+
+struct Encoding1_Range {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ HBUINT8 first;
+ HBUINT8 nLeft;
+
+ DEFINE_SIZE_STATIC (2);
+};
+
+struct Encoding1 {
+ unsigned int get_size () const
+ { return HBUINT8::static_size + Encoding1_Range::static_size * nRanges; }
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && ((nRanges == 0) || (ranges[nRanges - 1]).sanitize (c)));
+ }
+
+ hb_codepoint_t get_code (hb_codepoint_t glyph) const
+ {
+ assert (glyph > 0);
+ glyph--;
+ for (unsigned int i = 0; i < nRanges; i++)
+ {
+ if (glyph <= ranges[i].nLeft)
+ {
+ return (hb_codepoint_t)ranges[i].first + glyph;
+ }
+ glyph -= (ranges[i].nLeft + 1);
+ }
+ return CFF_UNDEF_CODE;
+ }
+
+ HBUINT8 nRanges;
+ Encoding1_Range ranges[VAR];
+
+ DEFINE_SIZE_ARRAY (1, ranges);
+};
+
+struct SuppEncoding {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ HBUINT8 code;
+ HBUINT16 glyph;
+
+ DEFINE_SIZE_STATIC (3);
+};
+
+struct CFF1SuppEncData {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && ((nSups == 0) || (supps[nSups - 1]).sanitize (c)));
+ }
+
+ void get_codes (hb_codepoint_t sid, hb_vector_t<hb_codepoint_t> &codes) const
+ {
+ for (unsigned int i = 0; i < nSups; i++)
+ if (sid == supps[i].glyph)
+ codes.push (supps[i].code);
+ }
+
+ unsigned int get_size () const
+ { return HBUINT8::static_size + SuppEncoding::static_size * nSups; }
+
+ HBUINT8 nSups;
+ SuppEncoding supps[VAR];
+
+ DEFINE_SIZE_ARRAY (1, supps);
+};
+
+struct Encoding {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+
+ if (unlikely (!c->check_struct (this)))
+ return_trace (false);
+ unsigned int fmt = format & 0x7F;
+ if (unlikely (fmt > 1))
+ return_trace (false);
+ if (unlikely (!((fmt == 0)? u.format0.sanitize (c): u.format1.sanitize (c))))
+ return_trace (false);
+ return_trace (((format & 0x80) == 0) || suppEncData ().sanitize (c));
+ }
+
+ /* serialize a fullset Encoding */
+ bool serialize (hb_serialize_context_t *c, const Encoding &src)
+ {
+ TRACE_SERIALIZE (this);
+ unsigned int size = src.get_size ();
+ Encoding *dest = c->allocate_size<Encoding> (size);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ memcpy (dest, &src, size);
+ return_trace (true);
+ }
+
+ /* serialize a subset Encoding */
+ bool serialize (hb_serialize_context_t *c,
+ uint8_t format,
+ unsigned int enc_count,
+ const hb_vector_t<code_pair>& code_ranges,
+ const hb_vector_t<code_pair>& supp_codes)
+ {
+ TRACE_SERIALIZE (this);
+ Encoding *dest = c->extend_min (*this);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ dest->format.set (format | ((supp_codes.len > 0)? 0x80: 0));
+ if (format == 0)
+ {
+ Encoding0 *fmt0 = c->allocate_size<Encoding0> (Encoding0::min_size + HBUINT8::static_size * enc_count);
+ if (unlikely (fmt0 == nullptr)) return_trace (false);
+ fmt0->nCodes.set (enc_count);
+ unsigned int glyph = 0;
+ for (unsigned int i = 0; i < code_ranges.len; i++)
+ {
+ hb_codepoint_t code = code_ranges[i].code;
+ for (int left = (int)code_ranges[i].glyph; left >= 0; left--)
+ fmt0->codes[glyph++].set (code++);
+ if (unlikely (!((glyph <= 0x100) && (code <= 0x100))))
+ return_trace (false);
+ }
+ }
+ else
+ {
+ Encoding1 *fmt1 = c->allocate_size<Encoding1> (Encoding1::min_size + Encoding1_Range::static_size * code_ranges.len);
+ if (unlikely (fmt1 == nullptr)) return_trace (false);
+ fmt1->nRanges.set (code_ranges.len);
+ for (unsigned int i = 0; i < code_ranges.len; i++)
+ {
+ if (unlikely (!((code_ranges[i].code <= 0xFF) && (code_ranges[i].glyph <= 0xFF))))
+ return_trace (false);
+ fmt1->ranges[i].first.set (code_ranges[i].code);
+ fmt1->ranges[i].nLeft.set (code_ranges[i].glyph);
+ }
+ }
+ if (supp_codes.len > 0)
+ {
+ CFF1SuppEncData *suppData = c->allocate_size<CFF1SuppEncData> (CFF1SuppEncData::min_size + SuppEncoding::static_size * supp_codes.len);
+ if (unlikely (suppData == nullptr)) return_trace (false);
+ suppData->nSups.set (supp_codes.len);
+ for (unsigned int i = 0; i < supp_codes.len; i++)
+ {
+ suppData->supps[i].code.set (supp_codes[i].code);
+ suppData->supps[i].glyph.set (supp_codes[i].glyph); /* actually SID */
+ }
+ }
+ return_trace (true);
+ }
+
+ /* parallel to above: calculate the size of a subset Encoding */
+ static unsigned int calculate_serialized_size (uint8_t format,
+ unsigned int enc_count,
+ unsigned int supp_count)
+ {
+ unsigned int size = min_size;
+ if (format == 0)
+ size += Encoding0::min_size + HBUINT8::static_size * enc_count;
+ else
+ size += Encoding1::min_size + Encoding1_Range::static_size * enc_count;
+ if (supp_count > 0)
+ size += CFF1SuppEncData::min_size + SuppEncoding::static_size * supp_count;
+ return size;
+ }
+
+ unsigned int get_size () const
+ {
+ unsigned int size = min_size;
+ if (table_format () == 0)
+ size += u.format0.get_size ();
+ else
+ size += u.format1.get_size ();
+ if (has_supplement ())
+ size += suppEncData ().get_size ();
+ return size;
+ }
+
+ hb_codepoint_t get_code (hb_codepoint_t glyph) const
+ {
+ if (table_format () == 0)
+ return u.format0.get_code (glyph);
+ else
+ return u.format1.get_code (glyph);
+ }
+
+ uint8_t table_format () const { return (format & 0x7F); }
+ bool has_supplement () const { return (format & 0x80) != 0; }
+
+ void get_supplement_codes (hb_codepoint_t sid, hb_vector_t<hb_codepoint_t> &codes) const
+ {
+ codes.resize (0);
+ if (has_supplement ())
+ suppEncData().get_codes (sid, codes);
+ }
+
+ protected:
+ const CFF1SuppEncData &suppEncData () const
+ {
+ if ((format & 0x7F) == 0)
+ return StructAfter<CFF1SuppEncData> (u.format0.codes[u.format0.nCodes-1]);
+ else
+ return StructAfter<CFF1SuppEncData> (u.format1.ranges[u.format1.nRanges-1]);
+ }
+
+ public:
+ HBUINT8 format;
+
+ union {
+ Encoding0 format0;
+ Encoding1 format1;
+ } u;
+ /* CFF1SuppEncData suppEncData; */
+
+ DEFINE_SIZE_MIN (1);
+};
+
+/* Charset */
+struct Charset0 {
+ bool sanitize (hb_sanitize_context_t *c, unsigned int num_glyphs) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && sids[num_glyphs - 1].sanitize (c));
+ }
+
+ hb_codepoint_t get_sid (hb_codepoint_t glyph) const
+ {
+ if (glyph == 0)
+ return 0;
+ else
+ return sids[glyph - 1];
+ }
+
+ hb_codepoint_t get_glyph (hb_codepoint_t sid, unsigned int num_glyphs) const
+ {
+ if (sid == 0)
+ return 0;
+
+ for (unsigned int glyph = 1; glyph < num_glyphs; glyph++)
+ {
+ if (sids[glyph-1] == sid)
+ return glyph;
+ }
+ return 0;
+ }
+
+ unsigned int get_size (unsigned int num_glyphs) const
+ {
+ assert (num_glyphs > 0);
+ return HBUINT16::static_size * (num_glyphs - 1);
+ }
+
+ HBUINT16 sids[VAR];
+
+ DEFINE_SIZE_ARRAY(0, sids);
+};
+
+template <typename TYPE>
+struct Charset_Range {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ HBUINT16 first;
+ TYPE nLeft;
+
+ DEFINE_SIZE_STATIC (HBUINT16::static_size + TYPE::static_size);
+};
+
+template <typename TYPE>
+struct Charset1_2 {
+ bool sanitize (hb_sanitize_context_t *c, unsigned int num_glyphs) const
+ {
+ TRACE_SANITIZE (this);
+ if (unlikely (!c->check_struct (this)))
+ return_trace (false);
+ num_glyphs--;
+ for (unsigned int i = 0; num_glyphs > 0; i++)
+ {
+ if (unlikely (!ranges[i].sanitize (c) || (num_glyphs < ranges[i].nLeft + 1)))
+ return_trace (false);
+ num_glyphs -= (ranges[i].nLeft + 1);
+ }
+ return_trace (true);
+ }
+
+ hb_codepoint_t get_sid (hb_codepoint_t glyph) const
+ {
+ if (glyph == 0) return 0;
+ glyph--;
+ for (unsigned int i = 0;; i++)
+ {
+ if (glyph <= ranges[i].nLeft)
+ return (hb_codepoint_t)ranges[i].first + glyph;
+ glyph -= (ranges[i].nLeft + 1);
+ }
+
+ return 0;
+ }
+
+ hb_codepoint_t get_glyph (hb_codepoint_t sid, unsigned int num_glyphs) const
+ {
+ if (sid == 0) return 0;
+ hb_codepoint_t glyph = 1;
+ for (unsigned int i = 0;; i++)
+ {
+ if (glyph >= num_glyphs)
+ return 0;
+ if ((ranges[i].first <= sid) && (sid <= ranges[i].first + ranges[i].nLeft))
+ return glyph + (sid - ranges[i].first);
+ glyph += (ranges[i].nLeft + 1);
+ }
+
+ return 0;
+ }
+
+ unsigned int get_size (unsigned int num_glyphs) const
+ {
+ unsigned int size = HBUINT8::static_size;
+ int glyph = (int)num_glyphs;
+
+ assert (glyph > 0);
+ glyph--;
+ for (unsigned int i = 0; glyph > 0; i++)
+ {
+ glyph -= (ranges[i].nLeft + 1);
+ size += Charset_Range<TYPE>::static_size;
+ }
+
+ return size;
+ }
+
+ Charset_Range<TYPE> ranges[VAR];
+
+ DEFINE_SIZE_ARRAY (0, ranges);
+};
+
+typedef Charset1_2<HBUINT8> Charset1;
+typedef Charset1_2<HBUINT16> Charset2;
+typedef Charset_Range<HBUINT8> Charset1_Range;
+typedef Charset_Range<HBUINT16> Charset2_Range;
+
+struct Charset {
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+
+ if (unlikely (!c->check_struct (this)))
+ return_trace (false);
+ if (format == 0)
+ return_trace (u.format0.sanitize (c, c->get_num_glyphs ()));
+ else if (format == 1)
+ return_trace (u.format1.sanitize (c, c->get_num_glyphs ()));
+ else if (likely (format == 2))
+ return_trace (u.format2.sanitize (c, c->get_num_glyphs ()));
+ else
+ return_trace (false);
+ }
+
+ /* serialize a fullset Charset */
+ bool serialize (hb_serialize_context_t *c, const Charset &src, unsigned int num_glyphs)
+ {
+ TRACE_SERIALIZE (this);
+ unsigned int size = src.get_size (num_glyphs);
+ Charset *dest = c->allocate_size<Charset> (size);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ memcpy (dest, &src, size);
+ return_trace (true);
+ }
+
+ /* serialize a subset Charset */
+ bool serialize (hb_serialize_context_t *c,
+ uint8_t format,
+ unsigned int num_glyphs,
+ const hb_vector_t<code_pair>& sid_ranges)
+ {
+ TRACE_SERIALIZE (this);
+ Charset *dest = c->extend_min (*this);
+ if (unlikely (dest == nullptr)) return_trace (false);
+ dest->format.set (format);
+ if (format == 0)
+ {
+ Charset0 *fmt0 = c->allocate_size<Charset0> (Charset0::min_size + HBUINT16::static_size * (num_glyphs - 1));
+ if (unlikely (fmt0 == nullptr)) return_trace (false);
+ unsigned int glyph = 0;
+ for (unsigned int i = 0; i < sid_ranges.len; i++)
+ {
+ hb_codepoint_t sid = sid_ranges[i].code;
+ for (int left = (int)sid_ranges[i].glyph; left >= 0; left--)
+ fmt0->sids[glyph++].set (sid++);
+ }
+ }
+ else if (format == 1)
+ {
+ Charset1 *fmt1 = c->allocate_size<Charset1> (Charset1::min_size + Charset1_Range::static_size * sid_ranges.len);
+ if (unlikely (fmt1 == nullptr)) return_trace (false);
+ for (unsigned int i = 0; i < sid_ranges.len; i++)
+ {
+ if (unlikely (!(sid_ranges[i].glyph <= 0xFF)))
+ return_trace (false);
+ fmt1->ranges[i].first.set (sid_ranges[i].code);
+ fmt1->ranges[i].nLeft.set (sid_ranges[i].glyph);
+ }
+ }
+ else /* format 2 */
+ {
+ Charset2 *fmt2 = c->allocate_size<Charset2> (Charset2::min_size + Charset2_Range::static_size * sid_ranges.len);
+ if (unlikely (fmt2 == nullptr)) return_trace (false);
+ for (unsigned int i = 0; i < sid_ranges.len; i++)
+ {
+ if (unlikely (!(sid_ranges[i].glyph <= 0xFFFF)))
+ return_trace (false);
+ fmt2->ranges[i].first.set (sid_ranges[i].code);
+ fmt2->ranges[i].nLeft.set (sid_ranges[i].glyph);
+ }
+ }
+ return_trace (true);
+ }
+
+ /* parallel to above: calculate the size of a subset Charset */
+ static unsigned int calculate_serialized_size (
+ uint8_t format,
+ unsigned int count)
+ {
+ unsigned int size = min_size;
+ if (format == 0)
+ size += Charset0::min_size + HBUINT16::static_size * (count - 1);
+ else if (format == 1)
+ size += Charset1::min_size + Charset1_Range::static_size * count;
+ else
+ size += Charset2::min_size + Charset2_Range::static_size * count;
+
+ return size;
+ }
+
+ unsigned int get_size (unsigned int num_glyphs) const
+ {
+ unsigned int size = min_size;
+ if (format == 0)
+ size += u.format0.get_size (num_glyphs);
+ else if (format == 1)
+ size += u.format1.get_size (num_glyphs);
+ else
+ size += u.format2.get_size (num_glyphs);
+ return size;
+ }
+
+ hb_codepoint_t get_sid (hb_codepoint_t glyph) const
+ {
+ if (format == 0)
+ return u.format0.get_sid (glyph);
+ else if (format == 1)
+ return u.format1.get_sid (glyph);
+ else
+ return u.format2.get_sid (glyph);
+ }
+
+ hb_codepoint_t get_glyph (hb_codepoint_t sid, unsigned int num_glyphs) const
+ {
+ if (format == 0)
+ return u.format0.get_glyph (sid, num_glyphs);
+ else if (format == 1)
+ return u.format1.get_glyph (sid, num_glyphs);
+ else
+ return u.format2.get_glyph (sid, num_glyphs);
+ }
+
+ HBUINT8 format;
+ union {
+ Charset0 format0;
+ Charset1 format1;
+ Charset2 format2;
+ } u;
+
+ DEFINE_SIZE_MIN (1);
+};
+
+struct CFF1StringIndex : CFF1Index
+{
+ bool serialize (hb_serialize_context_t *c, const CFF1StringIndex &strings,
+ unsigned int offSize_, const Remap &sidmap)
+ {
+ TRACE_SERIALIZE (this);
+ if (unlikely ((strings.count == 0) || (sidmap.get_count () == 0)))
+ {
+ if (!unlikely (c->extend_min (this->count)))
+ return_trace (false);
+ count.set (0);
+ return_trace (true);
+ }
+
+ ByteStrArray bytesArray;
+ bytesArray.init ();
+ if (!bytesArray.resize (sidmap.get_count ()))
+ return_trace (false);
+ for (unsigned int i = 0; i < strings.count; i++)
+ {
+ hb_codepoint_t j = sidmap[i];
+ if (j != CFF_UNDEF_CODE)
+ bytesArray[j] = strings[i];
+ }
+
+ bool result = CFF1Index::serialize (c, offSize_, bytesArray);
+ bytesArray.fini ();
+ return_trace (result);
+ }
+
+ /* in parallel to above */
+ unsigned int calculate_serialized_size (unsigned int &offSize /*OUT*/, const Remap &sidmap) const
+ {
+ offSize = 0;
+ if ((count == 0) || (sidmap.get_count () == 0))
+ return count.static_size;
+
+ unsigned int dataSize = 0;
+ for (unsigned int i = 0; i < count; i++)
+ if (sidmap[i] != CFF_UNDEF_CODE)
+ dataSize += length_at (i);
+
+ offSize = calcOffSize(dataSize);
+ return CFF1Index::calculate_serialized_size (offSize, sidmap.get_count (), dataSize);
+ }
+};
+
+struct CFF1TopDictInterpEnv : NumInterpEnv
+{
+ CFF1TopDictInterpEnv ()
+ : NumInterpEnv(), prev_offset(0), last_offset(0) {}
+
+ unsigned int prev_offset;
+ unsigned int last_offset;
+};
+
+struct NameDictValues
+{
+ enum NameDictValIndex
+ {
+ version,
+ notice,
+ copyright,
+ fullName,
+ familyName,
+ weight,
+ postscript,
+ fontName,
+ baseFontName,
+ registry,
+ ordering,
+
+ ValCount
+ };
+
+ void init ()
+ {
+ for (unsigned int i = 0; i < ValCount; i++)
+ values[i] = CFF_UNDEF_SID;
+ }
+
+ unsigned int& operator[] (unsigned int i)
+ { assert (i < ValCount); return values[i]; }
+
+ unsigned int operator[] (unsigned int i) const
+ { assert (i < ValCount); return values[i]; }
+
+ static enum NameDictValIndex name_op_to_index (OpCode op)
+ {
+ switch (op) {
+ default: // can't happen - just make some compiler happy
+ case OpCode_version:
+ return version;
+ case OpCode_Notice:
+ return notice;
+ case OpCode_Copyright:
+ return copyright;
+ case OpCode_FullName:
+ return fullName;
+ case OpCode_FamilyName:
+ return familyName;
+ case OpCode_Weight:
+ return weight;
+ case OpCode_PostScript:
+ return postscript;
+ case OpCode_FontName:
+ return fontName;
+ case OpCode_BaseFontName:
+ return baseFontName;
+ }
+ }
+
+ unsigned int values[ValCount];
+};
+
+struct CFF1TopDictVal : OpStr
+{
+ unsigned int last_arg_offset;
+};
+
+struct CFF1TopDictValues : TopDictValues<CFF1TopDictVal>
+{
+ void init ()
+ {
+ TopDictValues<CFF1TopDictVal>::init ();
+
+ nameSIDs.init ();
+ ros_supplement = 0;
+ cidCount = 8720;
+ EncodingOffset = 0;
+ CharsetOffset = 0;
+ FDSelectOffset = 0;
+ privateDictInfo.init ();
+ }
+ void fini () { TopDictValues<CFF1TopDictVal>::fini (); }
+
+ bool is_CID () const
+ { return nameSIDs[NameDictValues::registry] != CFF_UNDEF_SID; }
+
+ NameDictValues nameSIDs;
+ unsigned int ros_supplement_offset;
+ unsigned int ros_supplement;
+ unsigned int cidCount;
+
+ unsigned int EncodingOffset;
+ unsigned int CharsetOffset;
+ unsigned int FDSelectOffset;
+ TableInfo privateDictInfo;
+};
+
+struct CFF1TopDictOpSet : TopDictOpSet<CFF1TopDictVal>
+{
+ static void process_op (OpCode op, CFF1TopDictInterpEnv& env, CFF1TopDictValues& dictval)
+ {
+ CFF1TopDictVal val;
+ val.last_arg_offset = (env.last_offset-1) - dictval.opStart; /* offset to the last argument */
+
+ switch (op) {
+ case OpCode_version:
+ case OpCode_Notice:
+ case OpCode_Copyright:
+ case OpCode_FullName:
+ case OpCode_FamilyName:
+ case OpCode_Weight:
+ case OpCode_PostScript:
+ case OpCode_BaseFontName:
+ dictval.nameSIDs[NameDictValues::name_op_to_index (op)] = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+ case OpCode_isFixedPitch:
+ case OpCode_ItalicAngle:
+ case OpCode_UnderlinePosition:
+ case OpCode_UnderlineThickness:
+ case OpCode_PaintType:
+ case OpCode_CharstringType:
+ case OpCode_UniqueID:
+ case OpCode_StrokeWidth:
+ case OpCode_SyntheticBase:
+ case OpCode_CIDFontVersion:
+ case OpCode_CIDFontRevision:
+ case OpCode_CIDFontType:
+ case OpCode_UIDBase:
+ case OpCode_FontBBox:
+ case OpCode_XUID:
+ case OpCode_BaseFontBlend:
+ env.clear_args ();
+ break;
+
+ case OpCode_CIDCount:
+ dictval.cidCount = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ case OpCode_ROS:
+ dictval.ros_supplement = env.argStack.pop_uint ();
+ dictval.nameSIDs[NameDictValues::ordering] = env.argStack.pop_uint ();
+ dictval.nameSIDs[NameDictValues::registry] = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ case OpCode_Encoding:
+ dictval.EncodingOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ if (unlikely (dictval.EncodingOffset == 0)) return;
+ break;
+
+ case OpCode_charset:
+ dictval.CharsetOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ if (unlikely (dictval.CharsetOffset == 0)) return;
+ break;
+
+ case OpCode_FDSelect:
+ dictval.FDSelectOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ case OpCode_Private:
+ dictval.privateDictInfo.offset = env.argStack.pop_uint ();
+ dictval.privateDictInfo.size = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+
+ default:
+ env.last_offset = env.substr.offset;
+ TopDictOpSet<CFF1TopDictVal>::process_op (op, env, dictval);
+ /* Record this operand below if stack is empty, otherwise done */
+ if (!env.argStack.is_empty ()) return;
+ break;
+ }
+
+ if (unlikely (env.in_error ())) return;
+
+ dictval.add_op (op, env.substr, val);
+ }
+};
+
+struct CFF1FontDictValues : DictValues<OpStr>
+{
+ void init ()
+ {
+ DictValues<OpStr>::init ();
+ privateDictInfo.init ();
+ fontName = CFF_UNDEF_SID;
+ }
+ void fini () { DictValues<OpStr>::fini (); }
+
+ TableInfo privateDictInfo;
+ unsigned int fontName;
+};
+
+struct CFF1FontDictOpSet : DictOpSet
+{
+ static void process_op (OpCode op, NumInterpEnv& env, CFF1FontDictValues& dictval)
+ {
+ switch (op) {
+ case OpCode_FontName:
+ dictval.fontName = env.argStack.pop_uint ();
+ env.clear_args ();
+ break;
+ case OpCode_FontMatrix:
+ case OpCode_PaintType:
+ env.clear_args ();
+ break;
+ case OpCode_Private:
+ dictval.privateDictInfo.offset = env.argStack.pop_uint ();
+ dictval.privateDictInfo.size = env.argStack.pop_uint ();
+ env.clear_args ();
+ 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);
+ }
+};
+
+template <typename VAL>
+struct CFF1PrivateDictValues_Base : DictValues<VAL>
+{
+ void init ()
+ {
+ DictValues<VAL>::init ();
+ subrsOffset = 0;
+ localSubrs = &Null(CFF1Subrs);
+ }
+ 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 CFF1Subrs *localSubrs;
+};
+
+typedef CFF1PrivateDictValues_Base<OpStr> CFF1PrivateDictValues_Subset;
+typedef CFF1PrivateDictValues_Base<NumDictVal> CFF1PrivateDictValues;
+
+struct CFF1PrivateDictOpSet : DictOpSet
+{
+ static void process_op (OpCode op, NumInterpEnv& env, CFF1PrivateDictValues& dictval)
+ {
+ NumDictVal val;
+ val.init ();
+
+ switch (op) {
+ case OpCode_BlueValues:
+ case OpCode_OtherBlues:
+ case OpCode_FamilyBlues:
+ case OpCode_FamilyOtherBlues:
+ case OpCode_StemSnapH:
+ case OpCode_StemSnapV:
+ env.clear_args ();
+ break;
+ case OpCode_StdHW:
+ case OpCode_StdVW:
+ case OpCode_BlueScale:
+ case OpCode_BlueShift:
+ case OpCode_BlueFuzz:
+ case OpCode_ForceBold:
+ case OpCode_LanguageGroup:
+ case OpCode_ExpansionFactor:
+ case OpCode_initialRandomSeed:
+ case OpCode_defaultWidthX:
+ case OpCode_nominalWidthX:
+ val.single_val = env.argStack.pop_num ();
+ env.clear_args ();
+ break;
+ case OpCode_Subrs:
+ dictval.subrsOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ 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 CFF1PrivateDictOpSet_Subset : DictOpSet
+{
+ static void process_op (OpCode op, NumInterpEnv& env, CFF1PrivateDictValues_Subset& dictval)
+ {
+ switch (op) {
+ case OpCode_BlueValues:
+ case OpCode_OtherBlues:
+ case OpCode_FamilyBlues:
+ case OpCode_FamilyOtherBlues:
+ case OpCode_StemSnapH:
+ case OpCode_StemSnapV:
+ case OpCode_StdHW:
+ case OpCode_StdVW:
+ case OpCode_BlueScale:
+ case OpCode_BlueShift:
+ case OpCode_BlueFuzz:
+ case OpCode_ForceBold:
+ case OpCode_LanguageGroup:
+ case OpCode_ExpansionFactor:
+ case OpCode_initialRandomSeed:
+ case OpCode_defaultWidthX:
+ case OpCode_nominalWidthX:
+ env.clear_args ();
+ break;
+
+ case OpCode_Subrs:
+ dictval.subrsOffset = env.argStack.pop_uint ();
+ env.clear_args ();
+ 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);
+ }
+};
+
+typedef DictInterpreter<CFF1TopDictOpSet, CFF1TopDictValues, CFF1TopDictInterpEnv> CFF1TopDict_Interpreter;
+typedef DictInterpreter<CFF1FontDictOpSet, CFF1FontDictValues> CFF1FontDict_Interpreter;
+typedef DictInterpreter<CFF1PrivateDictOpSet, CFF1PrivateDictValues> CFF1PrivateDict_Interpreter;
+
+typedef CFF1Index CFF1NameIndex;
+typedef CFF1IndexOf<TopDict> CFF1TopDictIndex;
+
+}; /* namespace CFF */
+
+namespace OT {
+
+using namespace CFF;
+
+struct cff1
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_cff1;
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ likely (version.major == 1));
+ }
+
+ 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<cff1> (face);
+
+ /* setup for run-time santization */
+ sc.init (this->blob);
+ sc.start_processing ();
+
+ const OT::cff1 *cff = this->blob->template as<OT::cff1> ();
+
+ if (cff == &Null(OT::cff1))
+ { fini (); return; }
+
+ nameIndex = &cff->nameIndex (cff);
+ if ((nameIndex == &Null (CFF1NameIndex)) || !nameIndex->sanitize (&sc))
+ { fini (); return; }
+
+ topDictIndex = &StructAtOffset<CFF1TopDictIndex> (nameIndex, nameIndex->get_size ());
+ if ((topDictIndex == &Null (CFF1TopDictIndex)) || !topDictIndex->sanitize (&sc) || (topDictIndex->count == 0))
+ { fini (); return; }
+
+ { /* parse top dict */
+ const ByteStr topDictStr = (*topDictIndex)[0];
+ if (unlikely (!topDictStr.sanitize (&sc))) { fini (); return; }
+ CFF1TopDict_Interpreter top_interp;
+ top_interp.env.init (topDictStr);
+ topDict.init ();
+ if (unlikely (!top_interp.interpret (topDict))) { fini (); return; }
+ }
+
+ if (is_predef_charset ())
+ charset = &Null(Charset);
+ else
+ {
+ charset = &StructAtOffsetOrNull<Charset> (cff, topDict.CharsetOffset);
+ if (unlikely ((charset == &Null (Charset)) || !charset->sanitize (&sc))) { fini (); return; }
+ }
+
+ fdCount = 1;
+ if (is_CID ())
+ {
+ fdArray = &StructAtOffsetOrNull<CFF1FDArray> (cff, topDict.FDArrayOffset);
+ fdSelect = &StructAtOffsetOrNull<CFF1FDSelect> (cff, topDict.FDSelectOffset);
+ if (unlikely ((fdArray == &Null(CFF1FDArray)) || !fdArray->sanitize (&sc) ||
+ (fdSelect == &Null(CFF1FDSelect)) || !fdSelect->sanitize (&sc, fdArray->count)))
+ { fini (); return; }
+
+ fdCount = fdArray->count;
+ }
+ else
+ {
+ fdArray = &Null(CFF1FDArray);
+ fdSelect = &Null(CFF1FDSelect);
+ }
+
+ stringIndex = &StructAtOffset<CFF1StringIndex> (topDictIndex, topDictIndex->get_size ());
+ if ((stringIndex == &Null (CFF1StringIndex)) || !stringIndex->sanitize (&sc))
+ { fini (); return; }
+
+ globalSubrs = &StructAtOffset<CFF1Subrs> (stringIndex, stringIndex->get_size ());
+ if ((globalSubrs != &Null (CFF1Subrs)) && !globalSubrs->sanitize (&sc))
+ { fini (); return; }
+
+ charStrings = &StructAtOffsetOrNull<CFF1CharStrings> (cff, topDict.charStringsOffset);
+
+ if ((charStrings == &Null(CFF1CharStrings)) || unlikely (!charStrings->sanitize (&sc)))
+ { fini (); return; }
+
+ num_glyphs = charStrings->count;
+ if (num_glyphs != sc.get_num_glyphs ())
+ { fini (); return; }
+
+ privateDicts.resize (fdCount);
+ for (unsigned int i = 0; i < fdCount; i++)
+ privateDicts[i].init ();
+
+ // parse CID font dicts and gather private dicts
+ if (is_CID ())
+ {
+ for (unsigned int i = 0; i < fdCount; i++)
+ {
+ ByteStr fontDictStr = (*fdArray)[i];
+ if (unlikely (!fontDictStr.sanitize (&sc))) { fini (); return; }
+ CFF1FontDictValues *font;
+ CFF1FontDict_Interpreter font_interp;
+ font_interp.env.init (fontDictStr);
+ font = fontDicts.push ();
+ if (unlikely (font == &Crap(CFF1FontDictValues))) { fini (); return; }
+ font->init ();
+ if (unlikely (!font_interp.interpret (*font))) { fini (); return; }
+ PRIVDICTVAL *priv = &privateDicts[i];
+ const ByteStr privDictStr (StructAtOffset<UnsizedByteStr> (cff, font->privateDictInfo.offset), font->privateDictInfo.size);
+ if (unlikely (!privDictStr.sanitize (&sc))) { fini (); return; }
+ DictInterpreter<PRIVOPSET, PRIVDICTVAL> priv_interp;
+ priv_interp.env.init (privDictStr);
+ priv->init ();
+ if (unlikely (!priv_interp.interpret (*priv))) { fini (); return; }
+
+ priv->localSubrs = &StructAtOffsetOrNull<CFF1Subrs> (privDictStr.str, priv->subrsOffset);
+ if (priv->localSubrs != &Null(CFF1Subrs) &&
+ unlikely (!priv->localSubrs->sanitize (&sc)))
+ { fini (); return; }
+ }
+ }
+ else /* non-CID */
+ {
+ CFF1TopDictValues *font = &topDict;
+ PRIVDICTVAL *priv = &privateDicts[0];
+
+ const ByteStr privDictStr (StructAtOffset<UnsizedByteStr> (cff, font->privateDictInfo.offset), font->privateDictInfo.size);
+ if (unlikely (!privDictStr.sanitize (&sc))) { fini (); return; }
+ DictInterpreter<PRIVOPSET, PRIVDICTVAL> priv_interp;
+ priv_interp.env.init (privDictStr);
+ priv->init ();
+ if (unlikely (!priv_interp.interpret (*priv))) { fini (); return; }
+
+ priv->localSubrs = &StructAtOffsetOrNull<CFF1Subrs> (privDictStr.str, priv->subrsOffset);
+ if (priv->localSubrs != &Null(CFF1Subrs) &&
+ unlikely (!priv->localSubrs->sanitize (&sc)))
+ { fini (); return; }
+ }
+ }
+
+ void fini ()
+ {
+ sc.end_processing ();
+ topDict.fini ();
+ fontDicts.fini_deep ();
+ privateDicts.fini_deep ();
+ hb_blob_destroy (blob);
+ blob = nullptr;
+ }
+
+ bool is_valid () const { return blob != nullptr; }
+ bool is_CID () const { return topDict.is_CID (); }
+
+ bool is_predef_charset () const { return topDict.CharsetOffset <= ExpertSubsetCharset; }
+
+ unsigned int std_code_to_glyph (hb_codepoint_t code) const
+ {
+ hb_codepoint_t sid = lookup_standard_encoding_for_sid (code);
+ if (unlikely (sid == CFF_UNDEF_SID))
+ return 0;
+
+ if (charset != &Null(Charset))
+ return charset->get_glyph (sid, num_glyphs);
+ else if ((topDict.CharsetOffset == ISOAdobeCharset)
+ && (code <= 228 /*zcaron*/)) return sid;
+ return 0;
+ }
+
+ protected:
+ hb_blob_t *blob;
+ hb_sanitize_context_t sc;
+
+ public:
+ const Charset *charset;
+ const CFF1NameIndex *nameIndex;
+ const CFF1TopDictIndex *topDictIndex;
+ const CFF1StringIndex *stringIndex;
+ const CFF1Subrs *globalSubrs;
+ const CFF1CharStrings *charStrings;
+ const CFF1FDArray *fdArray;
+ const CFF1FDSelect *fdSelect;
+ unsigned int fdCount;
+
+ CFF1TopDictValues topDict;
+ hb_vector_t<CFF1FontDictValues> fontDicts;
+ hb_vector_t<PRIVDICTVAL> privateDicts;
+
+ unsigned int num_glyphs;
+ };
+
+ struct accelerator_t : accelerator_templ_t<CFF1PrivateDictOpSet, CFF1PrivateDictValues>
+ {
+ HB_INTERNAL bool get_extents (hb_codepoint_t glyph, hb_glyph_extents_t *extents) const;
+ HB_INTERNAL bool get_seac_components (hb_codepoint_t glyph, hb_codepoint_t *base, hb_codepoint_t *accent) const;
+ };
+
+ struct accelerator_subset_t : accelerator_templ_t<CFF1PrivateDictOpSet_Subset, CFF1PrivateDictValues_Subset>
+ {
+ void init (hb_face_t *face)
+ {
+ SUPER::init (face);
+ if (blob == nullptr) return;
+
+ const OT::cff1 *cff = this->blob->as<OT::cff1> ();
+ encoding = &Null(Encoding);
+ if (is_CID ())
+ {
+ if (unlikely (charset == &Null(Charset))) { fini (); return; }
+ }
+ else
+ {
+ if (!is_predef_encoding ())
+ {
+ encoding = &StructAtOffsetOrNull<Encoding> (cff, topDict.EncodingOffset);
+ if (unlikely ((encoding == &Null (Encoding)) || !encoding->sanitize (&sc))) { fini (); return; }
+ }
+ }
+ }
+
+ bool is_predef_encoding () const { return topDict.EncodingOffset <= ExpertEncoding; }
+
+ hb_codepoint_t glyph_to_code (hb_codepoint_t glyph) const
+ {
+ if (encoding != &Null(Encoding))
+ return encoding->get_code (glyph);
+ else
+ {
+ hb_codepoint_t sid = glyph_to_sid (glyph);
+ if (sid == 0) return 0;
+ hb_codepoint_t code = 0;
+ switch (topDict.EncodingOffset)
+ {
+ case StandardEncoding:
+ code = lookup_standard_encoding_for_code (sid);
+ break;
+ case ExpertEncoding:
+ code = lookup_expert_encoding_for_code (sid);
+ break;
+ default:
+ break;
+ }
+ return code;
+ }
+ }
+
+ hb_codepoint_t glyph_to_sid (hb_codepoint_t glyph) const
+ {
+ if (charset != &Null(Charset))
+ return charset->get_sid (glyph);
+ else
+ {
+ hb_codepoint_t sid = 0;
+ switch (topDict.CharsetOffset)
+ {
+ case ISOAdobeCharset:
+ if (glyph <= 228 /*zcaron*/) sid = glyph;
+ break;
+ case ExpertCharset:
+ sid = lookup_expert_charset_for_sid (glyph);
+ break;
+ case ExpertSubsetCharset:
+ sid = lookup_expert_subset_charset_for_sid (glyph);
+ break;
+ default:
+ break;
+ }
+ return sid;
+ }
+ }
+
+ const Encoding *encoding;
+
+ private:
+ typedef accelerator_templ_t<CFF1PrivateDictOpSet_Subset, CFF1PrivateDictValues_Subset> SUPER;
+ };
+
+ bool subset (hb_subset_plan_t *plan) const
+ {
+ hb_blob_t *cff_prime = nullptr;
+
+ bool success = true;
+ if (hb_subset_cff1 (plan, &cff_prime)) {
+ success = success && plan->add_table (HB_OT_TAG_cff1, cff_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 (cff_prime);
+
+ return success;
+ }
+
+ protected:
+ HB_INTERNAL static hb_codepoint_t lookup_standard_encoding_for_code (hb_codepoint_t sid);
+ HB_INTERNAL static hb_codepoint_t lookup_expert_encoding_for_code (hb_codepoint_t sid);
+ HB_INTERNAL static hb_codepoint_t lookup_expert_charset_for_sid (hb_codepoint_t glyph);
+ HB_INTERNAL static hb_codepoint_t lookup_expert_subset_charset_for_sid (hb_codepoint_t glyph);
+ HB_INTERNAL static hb_codepoint_t lookup_standard_encoding_for_sid (hb_codepoint_t code);
+
+ public:
+ FixedVersion<HBUINT8> version; /* Version of CFF table. set to 0x0100u */
+ OffsetTo<CFF1NameIndex, HBUINT8> nameIndex; /* headerSize = Offset to Name INDEX. */
+ HBUINT8 offSize; /* offset size (unused?) */
+
+ public:
+ DEFINE_SIZE_STATIC (4);
+};
+
+struct cff1_accelerator_t : cff1::accelerator_t {};
+} /* namespace OT */
+
+#endif /* HB_OT_CFF1_TABLE_HH */