private Color[] GetPalette()
{
using (var reader = new EndiannessAwareBinaryReader(GetReadStream(), Endianness))
{
MagicBytes = reader.ReadBytes(4, ByteOrder.LittleEndian);
if (!IsValidHPL)
{
return(null);
}
if (!endiannessChecked)
{
CheckEndianness(reader.ReadBytes(4));
reader.ChangeEndianness(Endianness);
}
else
{
reader.BaseStream.Seek(4, SeekOrigin.Current);
}
FileLength = reader.ReadUInt32();
ColorRange = reader.ReadUInt32();
reader.BaseStream.Seek(16, SeekOrigin.Current);
var colors = new Color[ColorRange];
for (var i = 0; i < colors.Length; i++)
{
var bytes = reader.ReadBytes(4);
colors[i] = Color.FromArgb(bytes[3], bytes[2], bytes[1], bytes[0]);
}
return(colors);
}
}
private void InitGetHeader(bool onlyHeader = false)
{
var stream = GetReadStream(onlyHeader);
if (stream == null)
{
return;
}
using (stream)
{
if (FileLength < 32)
{
return;
}
try
{
using (var reader = new EndiannessAwareBinaryReader(stream, Endianness))
{
MagicBytes = reader.ReadBytes(4, ByteOrder.LittleEndian);
if (MagicBytes.SequenceEqual(new byte[] { 0x42, 0x43, 0x53, 0x4D }))
{
reader.BaseStream.Seek(12, SeekOrigin.Current);
Offset += 16;
}
else
{
reader.BaseStream.Seek(-4, SeekOrigin.Current);
}
if (Endianness == ByteOrder.LittleEndian && !endiannessChecked)
{
reader.BaseStream.Seek(4, SeekOrigin.Current);
var headersize = reader.ReadUInt32();
reader.BaseStream.Seek(4, SeekOrigin.Current);
var filecount = reader.ReadUInt32();
reader.BaseStream.Seek(4, SeekOrigin.Current);
var fileentrysize = reader.ReadUInt32() + 12;
var remainder = fileentrysize % 16;
fileentrysize = fileentrysize + (remainder == 0 ? remainder : 16 - remainder);
var calcheadersize = fileentrysize * filecount + 0x20;
var calcheadersize2 = (fileentrysize + 16) * filecount + 0x20;
if (calcheadersize != headersize && calcheadersize2 != headersize)
{
Endianness = ByteOrder.BigEndian;
reader.ChangeEndianness(Endianness);
}
stream.Seek(-24, SeekOrigin.Current);
endiannessChecked = true;
}
ReadHeaderInfo(reader);
}
}
catch
{
}
}
}