private IGlyphTransformationTable ParseMultipleSubstitutionTable(int subTableOffset, dynamic fontTable, LookupFlags lookupFlags)
{
var type = typeof(GlyphTypeface).Assembly.GetType("MS.Internal.Shaping.MultipleSubstitutionSubtable");
dynamic table = new AccessPrivateWrapper(type.Instantiate(subTableOffset));
ushort format = table.Format(fontTable.Wrapped);
if (format != 1)
{
throw new UnknownTableFormatException(type, format);
}
var coverageTable = this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.Coverage(fontTable.Wrapped)));
var substitutionSequenceTables = this.GetEnumerableFromInternalList(
() => (ushort)coverageTable.CoveredGlyphIds.Count, i => (dynamic) new AccessPrivateWrapper(table.Sequence(fontTable.Wrapped, i))).ToList();
var sequences = substitutionSequenceTables
.Select(
sequenceTable =>
this.GetEnumerableFromInternalList(
() => sequenceTable.GlyphCount(fontTable.Wrapped),
i => (ushort)sequenceTable.Glyph(fontTable.Wrapped, i))).ToList();
return(new MultipleSubstitutionTable
{
Coverage = this.ParseCoverageTable(fontTable, new AccessPrivateWrapper(table.Coverage(fontTable.Wrapped))),
ReplacementSequences = sequences.ToList(),
LookupFlags = lookupFlags
});
}
