private Head(BinaryReader input)
{
var version = input.ReadUInt32(); // 0x00010000 for version 1.0.
var fontRevision = input.ReadUInt32();
var checkSumAdjustment = input.ReadUInt32();
var magicNumber = input.ReadUInt32();
if (magicNumber != 0x5F0F3CF5)
{
throw new NRasterizerException("Invalid magic number!" + magicNumber.ToString("x"));
}
var flags = input.ReadUInt16();
_unitsPerEm = input.ReadUInt16(); // valid is 16 to 16384
var created = input.ReadUInt64(); // International date (8-byte field). (?)
var modified = input.ReadUInt64();
// bounding box for all glyphs
_bounds = BoundsReader.ReadFrom(input);
var macStyle = input.ReadUInt16();
var lowestRecPPEM = input.ReadUInt16();
var fontDirectionHint = input.ReadInt16();
_indexToLocFormat = input.ReadInt16(); // 0 for 16-bit offsets, 1 for 32-bit.
var glyphDataFormat = input.ReadInt16(); // 0
}
internal static List <Glyph> From(TableEntry table, GlyphLocations locations)
{
var glyphCount = locations.GlyphCount;
var glyphs = new List <Glyph>(glyphCount);
var compositeGlyphs = new List <CompositeGlyph>(glyphCount);
for (int i = 0; i < glyphCount; i++)
{
var input = table.GetDataReader();
input.BaseStream.Seek(locations.Offsets[i], SeekOrigin.Current);
var length = locations.Offsets[i + 1] - locations.Offsets[i];
if (length > 0)
{
var contoursCount = input.ReadInt16();
var bounds = BoundsReader.ReadFrom(input);
if (contoursCount >= 0)
{
glyphs.Add(ReadSimpleGlyph(input, contoursCount, bounds));
}
else
{
compositeGlyphs.Add(ReadCompositeGlyph(input, -contoursCount, bounds, glyphs));
glyphs.Add(null);
}
}
else
{
glyphs.Add(Glyph.Empty);
}
}
// Flatten all composites
int c = 0;
for (int i = 0; i < glyphs.Count; i++)
{
if (glyphs[i] == null)
{
glyphs[i] = compositeGlyphs[c].Flatten(glyphs);
c++;
}
}
return(glyphs);
}