} // 'CHD'
public override ImageMetaData ReadMetaData(IBinaryStream file)
{
file.Position = 4;
int count = file.ReadInt32();
if (count < 0 || count > 0xFFFFF)
{
return(null);
}
file.ReadInt32();
uint first_offset = 0;
for (int i = 0; i < count && 0 == first_offset; ++i)
{
first_offset = file.ReadUInt32();
}
if (0 == first_offset)
{
return(null);
}
file.Position = first_offset;
var info = new ChdMetaData();
info.Width = file.ReadUInt32();
info.Height = file.ReadUInt32();
info.OffsetX = file.ReadInt32();
info.OffsetY = file.ReadInt32();
info.FirstOffset = first_offset + 0x10;
info.BPP = 32;
return(info);
}
public ChdReader(IBinaryStream input, ChdMetaData info)
{
m_input = input;
m_width = (int)info.Width;
m_height = (int)info.Height;
m_origin = info.FirstOffset;
}