private IFDEntry CreateIFDEntry(BinaryReader br, IFDEntry.Tag tag,
IFDEntry.FieldType ft, int count)
{
switch (ft)
{
case IFDEntry.FieldType.ASCII:
case IFDEntry.FieldType.BYTE:
case IFDEntry.FieldType.SBYTE:
case IFDEntry.FieldType.UNDEFINED:
var b = br.ReadBytes(count);
return(new IFDEntry(tag, ft, count, b));
case IFDEntry.FieldType.SHORT: {
var s = new ushort[count];
for (int i = 0; i < count; ++i)
{
s[i] = ReadUInt16(br);
}
return(new IFDEntry(tag, ft, count, s));
}
case IFDEntry.FieldType.SSHORT: {
var s = new short[count];
for (int i = 0; i < count; ++i)
{
s[i] = ReadInt16(br);
}
return(new IFDEntry(tag, ft, count, s));
}
case IFDEntry.FieldType.FLOAT:
var f = new float[count];
for (int i = 0; i < count; ++i)
{
f[i] = ReadSingle(br);
}
return(new IFDEntry(tag, ft, count, f));
case IFDEntry.FieldType.LONG: {
var l = new uint[count];
for (int i = 0; i < count; ++i)
{
l[i] = ReadUInt32(br);
}
return(new IFDEntry(tag, ft, count, l));
}
case IFDEntry.FieldType.SLONG: {
var l = new int[count];
for (int i = 0; i < count; ++i)
{
l[i] = ReadInt32(br);
}
return(new IFDEntry(tag, ft, count, l));
}
case IFDEntry.FieldType.DOUBLE:
var d = new double[count];
for (int i = 0; i < count; ++i)
{
d[i] = ReadDouble(br);
}
return(new IFDEntry(tag, ft, count, d));
case IFDEntry.FieldType.RATIONAL:
case IFDEntry.FieldType.SRATIONAL:
var r = new IFDRational[count];
for (int i = 0; i < count; ++i)
{
int numer = ReadInt32(br);
int denom = ReadInt32(br);
r[i] = new IFDRational(numer, denom);
}
return(new IFDEntry(tag, ft, count, r));
case IFDEntry.FieldType.Unknown:
default:
return(new IFDEntry(tag, ft, count));
}
}
public IFDEntry(Tag t, FieldType ft, int c, IFDRational d)
: this(t, ft, c, new IFDRational[] { d })
{
}
