} // 'HG-2'
public override ImageMetaData ReadMetaData(Stream stream)
{
stream.Position = 8;
using (var header = new ArcView.Reader(stream))
{
var info = new Hg2MetaData();
int type = header.ReadInt32();
if (0x25 == type)
{
info.HeaderSize = 0x58;
}
else if (0x20 == type)
{
info.HeaderSize = 0x50;
}
else
{
return(null);
}
info.Width = header.ReadUInt32();
info.Height = header.ReadUInt32();
info.BPP = header.ReadInt32();
header.BaseStream.Seek(8, SeekOrigin.Current);
info.DataPacked = header.ReadInt32();
info.DataUnpacked = header.ReadInt32();
info.CtlPacked = header.ReadInt32();
info.CtlUnpacked = header.ReadInt32();
header.BaseStream.Seek(8, SeekOrigin.Current);
info.CanvasWidth = header.ReadUInt32();
info.CanvasHeight = header.ReadUInt32();
info.OffsetX = header.ReadInt32();
info.OffsetY = header.ReadInt32();
return(info);
}
}
} // 'HG-2'
public override ImageMetaData ReadMetaData(IBinaryStream stream)
{
stream.Position = 8;
var info = new Hg2MetaData();
int type = stream.ReadInt32();
if (0x25 == type)
{
info.HeaderSize = 0x58;
}
else if (0x20 == type)
{
info.HeaderSize = 0x50;
}
else
{
return(null);
}
info.Width = stream.ReadUInt32();
info.Height = stream.ReadUInt32();
info.BPP = stream.ReadInt32();
stream.Seek(8, SeekOrigin.Current);
info.DataPacked = stream.ReadInt32();
info.DataUnpacked = stream.ReadInt32();
info.CtlPacked = stream.ReadInt32();
info.CtlUnpacked = stream.ReadInt32();
stream.Seek(8, SeekOrigin.Current);
info.CanvasWidth = stream.ReadUInt32();
info.CanvasHeight = stream.ReadUInt32();
info.OffsetX = stream.ReadInt32();
info.OffsetY = stream.ReadInt32();
return(info);
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
// emulate TGA image
var offset = entry.Offset;
var info = new Hg2MetaData
{
HeaderSize = 0x4C,
Width = arc.File.View.ReadUInt32(offset),
Height = arc.File.View.ReadUInt32(offset + 4),
BPP = arc.File.View.ReadInt32(offset + 8),
DataPacked = arc.File.View.ReadInt32(offset + 0x14),
DataUnpacked = arc.File.View.ReadInt32(offset + 0x18),
CtlPacked = arc.File.View.ReadInt32(offset + 0x1C),
CtlUnpacked = arc.File.View.ReadInt32(offset + 0x20),
CanvasWidth = arc.File.View.ReadUInt32(offset + 0x2C),
CanvasHeight = arc.File.View.ReadUInt32(offset + 0x30),
OffsetX = arc.File.View.ReadInt32(offset + 0x34),
OffsetY = arc.File.View.ReadInt32(offset + 0x38),
};
using (var input = arc.File.CreateStream(entry.Offset, entry.Size))
using (var reader = new Hg2Reader(input, info))
{
return(TgaStream.Create(info, reader.Unpack(), true));
}
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var offset = entry.Offset;
var info = new Hg2MetaData
{
HeaderSize = 0x4C,
Width = arc.File.View.ReadUInt32 (offset),
Height = arc.File.View.ReadUInt32 (offset+4),
BPP = arc.File.View.ReadInt32 (offset+8),
DataPacked = arc.File.View.ReadInt32 (offset+0x14),
DataUnpacked= arc.File.View.ReadInt32 (offset+0x18),
CtlPacked = arc.File.View.ReadInt32 (offset+0x1C),
CtlUnpacked = arc.File.View.ReadInt32 (offset+0x20),
CanvasWidth = arc.File.View.ReadUInt32 (offset+0x2C),
CanvasHeight= arc.File.View.ReadUInt32 (offset+0x30),
OffsetX = arc.File.View.ReadInt32 (offset+0x34),
OffsetY = arc.File.View.ReadInt32 (offset+0x38),
};
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new Hg2Reader (input, info);
}
public Hg2Reader(Stream input, Hg2MetaData info) : base(input, info)
{
m_hg2 = info;
}
