public static BaseArrayTable CreateFrom(BinaryReader reader, long beginAt, ushort classCount)
{
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
//---
var baseArrTable = new BaseArrayTable();
ushort baseCount = reader.ReadUInt16();
baseArrTable.records = new BaseRecord[baseCount];
// Read all baseAnchorOffsets in one go
ushort[] baseAnchorOffsets = Utils.ReadUInt16Array(reader, classCount * baseCount);
for (int i = 0; i < baseCount; ++i)
{
BaseRecord baseRec = new BaseRecord(classCount);
//each base has anchor point for mark glyph'class
for (int n = 0; n < classCount; ++n)
{
ushort offset = baseAnchorOffsets[i * classCount + n];
if (offset <= 0)
{
//TODO: review here
//bug?
continue;
}
baseRec.anchors[n] = AnchorPoint.CreateFrom(reader, beginAt + offset);
}
baseArrTable.records[i] = baseRec;
}
return(baseArrTable);
}
public static LookupType4Format1SubTable Load(BigEndianBinaryReader reader, long offset, LookupFlags lookupFlags)
{
// MarkBasePosFormat1 Subtable.
// +--------------------+---------------------------------+------------------------------------------------------+
// | Type | Name | Description |
// +====================+=================================+======================================================+
// | uint16 | posFormat | Format identifier: format = 1 |
// +--------------------+---------------------------------+------------------------------------------------------+
// | Offset16 | markCoverageOffset | Offset to markCoverage table, |
// | | | from beginning of MarkBasePos subtable. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | Offset16 | baseCoverageOffset | Offset to baseCoverage table, |
// | | | from beginning of MarkBasePos subtable. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | uint16 | markClassCount | Number of classes defined for marks. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | Offset16 | markArrayOffset | Offset to MarkArray table, |
// | | | from beginning of MarkBasePos subtable. |
// +--------------------+---------------------------------+------------------------------------------------------+
// | Offset16 | baseArrayOffset | Offset to BaseArray table, |
// | | | from beginning of MarkBasePos subtable. |
// +--------------------+---------------------------------+------------------------------------------------------+
ushort markCoverageOffset = reader.ReadOffset16();
ushort baseCoverageOffset = reader.ReadOffset16();
ushort markClassCount = reader.ReadUInt16();
ushort markArrayOffset = reader.ReadOffset16();
ushort baseArrayOffset = reader.ReadOffset16();
var markCoverage = CoverageTable.Load(reader, offset + markCoverageOffset);
var baseCoverage = CoverageTable.Load(reader, offset + baseCoverageOffset);
var markArrayTable = new MarkArrayTable(reader, offset + markArrayOffset);
var baseArrayTable = new BaseArrayTable(reader, offset + baseArrayOffset, markClassCount);
return(new LookupType4Format1SubTable(markCoverage, baseCoverage, markArrayTable, baseArrayTable, lookupFlags));
}
public LookupType4Format1SubTable(
CoverageTable markCoverage,
CoverageTable baseCoverage,
MarkArrayTable markArrayTable,
BaseArrayTable baseArrayTable,
LookupFlags lookupFlags)
: base(lookupFlags)
{
this.markCoverage = markCoverage;
this.baseCoverage = baseCoverage;
this.markArrayTable = markArrayTable;
this.baseArrayTable = baseArrayTable;
}
public static BaseArrayTable CreateFrom(BinaryReader reader, long beginAt, ushort classCount)
{
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
//---
var baseArrTable = new BaseArrayTable();
ushort baseCount = reader.ReadUInt16();
BaseRecord[] baseRecs = baseArrTable.records = new BaseRecord[baseCount];
for (int i = 0; i < baseCount; ++i)
{
baseArrTable.records[i] = new BaseRecord(Utils.ReadInt16Array(reader, classCount));
}
//read anchor table
for (int i = 0; i < baseCount; ++i)
{
short[] offsets = baseRecs[i].offsets;
#if DEBUG
if (classCount != offsets.Length)
{
throw new NotSupportedException();
}
#endif
//each base has anchor point for mark glyph'class
AnchorPoint[] anchors = baseRecs[i].anchors = new AnchorPoint[classCount];
for (int n = 0; n < classCount; ++n)
{
short offset = offsets[n];
if (offset < 0)
{
//TODO: review here
//bug?
continue;
}
anchors[n] = AnchorPoint.CreateFrom(reader, beginAt + offsets[n]);
}
}
return(baseArrTable);
}
public static BaseArrayTable CreateFrom(BinaryReader reader, long beginAt, ushort classCount)
{
reader.BaseStream.Seek(beginAt, SeekOrigin.Begin);
//---
var baseArrTable = new BaseArrayTable();
ushort baseCount = reader.ReadUInt16();
baseArrTable.records = new BaseRecord[baseCount];
for (int i = 0; i < baseCount; ++i)
{
baseArrTable.records[i] = new BaseRecord(Utils.ReadInt16Array(reader, classCount));
}
return baseArrTable;
}
