private static uint ReadNextOffset(BinaryReader reader, LocaTableVersion version)
{
switch (version)
{
case LocaTableVersion.Long:
return(DataTypeConverter.ReadULong(reader));
case LocaTableVersion.Short:
return((uint)(DataTypeConverter.ReadUShort(reader) * 2));
default:
throw new NotImplementedException();
}
}
public static PostTable Deserialize(BinaryReader reader, long startOffset)
{
reader.BaseStream.Position = startOffset;
return(new PostTable
{
Version = DataTypeConverter.ReadFixed(reader),
ItalicAngle = DataTypeConverter.ReadFixed(reader),
UnderlinePosition = DataTypeConverter.ReadShort(reader),
UnderlineThickness = DataTypeConverter.ReadShort(reader),
IsFixedPitch = DataTypeConverter.ReadULong(reader),
MinMemType42 = DataTypeConverter.ReadULong(reader),
MaxMemType42 = DataTypeConverter.ReadULong(reader),
MinMemType1 = DataTypeConverter.ReadULong(reader),
MaxMemType1 = DataTypeConverter.ReadULong(reader)
});
}
public static Format12Subtable Deserialize(BinaryReader reader, long startOffset)
{
var table = new Format12Subtable();
reader.BaseStream.Position = startOffset + 2 * DataTypeLength.UShort + DataTypeLength.ULong;
table.Language = DataTypeConverter.ReadULong(reader);
var numberOfGroups = DataTypeConverter.ReadULong(reader);
for (var i = 0; i < numberOfGroups; i++)
{
var startCharCode = DataTypeConverter.ReadULong(reader);
var endCharCode = DataTypeConverter.ReadULong(reader);
var startGlyphId = DataTypeConverter.ReadULong(reader);
for (var j = startCharCode; j <= endCharCode; j++)
{
table.CharGlyphIdMap[j] = startGlyphId + j - startCharCode;
}
}
return(table);
}
public static CmapTable Deserialize(BinaryReader reader, long startOffset)
{
var table = new CmapTable();
reader.BaseStream.Position = startOffset;
table.Version = DataTypeConverter.ReadUShort(reader);
var numberOfSubtables = DataTypeConverter.ReadUShort(reader);
var platformIds = new ushort[numberOfSubtables];
var encodingIds = new ushort[numberOfSubtables];
var offsets = new uint[numberOfSubtables];
for (var i = 0; i < numberOfSubtables; i++)
{
platformIds[i] = DataTypeConverter.ReadUShort(reader);
encodingIds[i] = DataTypeConverter.ReadUShort(reader);
offsets[i] = DataTypeConverter.ReadULong(reader);
}
var offsetSubtableMap = new Dictionary <uint, CmapSubtable>();
for (var i = 0; i < numberOfSubtables; i++)
{
if (offsetSubtableMap.ContainsKey(offsets[i])) // Multiple map
{
offsetSubtableMap[offsets[i]].Environments.Add(new Environment
{
EncodingId = encodingIds[i],
PlatformId = platformIds[i],
SubtableOffset = offsets[i]
});
continue;
}
var subtableStartOffset = reader.BaseStream.Position = startOffset + offsets[i];
var format = DataTypeConverter.ReadUShort(reader);
CmapSubtable subtable;
switch (format)
{
case 0:
subtable = Format0Subtable.Deserialize(reader, subtableStartOffset);
break;
case 4:
subtable = Format4Subtable.Deserialize(reader, subtableStartOffset);
break;
case 6:
subtable = Format6Subtable.Deserialize(reader, subtableStartOffset);
break;
case 12:
subtable = Format12Subtable.Deserialize(reader, subtableStartOffset);
break;
default:
throw new NotImplementedException();
}
subtable.Environments.Add(new Environment
{
PlatformId = platformIds[i],
EncodingId = encodingIds[i],
SubtableOffset = offsets[i]
});
offsetSubtableMap[offsets[i]] = subtable;
table.Subtables.Add(subtable);
}
return(table);
}