public static LocaTable Deserialize(BinaryReader reader, long startOffset, ushort numberOfGlyphs,
LocaTableVersion version)
{
var table = new LocaTable();
reader.BaseStream.Position = startOffset;
table.GlyphOffsets.AddRange(Enumerable.Range(0, numberOfGlyphs).Select <int, uint?>(i =>
{
var offset = ReadNextOffset(reader, version);
// Peek next offset
var restorePosition = reader.BaseStream.Position;
var nextOffset = ReadNextOffset(reader, version);
reader.BaseStream.Position = restorePosition;
// Empty outline check
if (offset == nextOffset)
{
return(null);
}
return(offset);
}));
return(table);
}
public static GlyfTable Deserialize(BinaryReader reader, long startOffset, uint length, LocaTable locaTable)
{
var table = new GlyfTable();
reader.BaseStream.Position = startOffset;
var glyphOffsets =
locaTable.GlyphOffsets.Select((u, i) => new { GlyphId = i, Offset = u })
.Where(glyph => glyph.Offset != null)
.Select(pair => new { pair.GlyphId, Offset = pair.Offset.Value }).ToList();
for (var i = 0; i < glyphOffsets.Count; i++)
{
Glyph glyphToAdd;
// Peek number of contours
var glyphStartOffset = reader.BaseStream.Position = glyphOffsets[i].Offset + startOffset;
var numberOfContours = DataTypeConverter.ReadShort(reader);
if (numberOfContours >= 0)
{
uint nextGlyphStartOffset;
if (i == glyphOffsets.Count - 1)
{
nextGlyphStartOffset = (uint)(startOffset + length);
}
else
{
nextGlyphStartOffset = (uint)(glyphOffsets[i + 1].Offset + startOffset);
}
// TODO: Remove padded zeros
glyphToAdd = SimpleGlyph.Deserialize(reader, glyphStartOffset,
(uint)(nextGlyphStartOffset - glyphStartOffset));
}
else
{
glyphToAdd = CompositeGlyph.Deserialize(reader, glyphStartOffset);
}
glyphToAdd.Id = (uint)glyphOffsets[i].GlyphId;
table.Glyphs.Add(glyphToAdd);
}
return(table);
}
