public override ImageData Read(IBinaryStream stream, ImageMetaData info)
{
var meta = (HgMetaData)info;
if (0x20 != meta.BPP)
{
throw new NotSupportedException("Not supported HG-3 color depth");
}
using (var reg = new StreamRegion(stream.AsStream, 0x14, true))
using (var input = new BinaryStream(reg, stream.Name))
using (var reader = new Hg3Reader(input, meta))
{
return(reader.Image);
}
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
// emulate TGA image
var offset = entry.Offset + 8;
var info = new HgMetaData
{
HeaderSize = arc.File.View.ReadUInt32(offset),
Width = arc.File.View.ReadUInt32(offset + 8),
Height = arc.File.View.ReadUInt32(offset + 0xC),
BPP = arc.File.View.ReadInt32(offset + 0x10),
OffsetX = arc.File.View.ReadInt32(offset + 0x14),
OffsetY = arc.File.View.ReadInt32(offset + 0x18),
CanvasWidth = arc.File.View.ReadUInt32(offset + 0x1C),
CanvasHeight = arc.File.View.ReadUInt32(offset + 0x20),
};
using (var input = arc.File.CreateStream(entry.Offset, entry.Size))
using (var reader = new Hg3Reader(input, info))
{
var pixels = reader.Unpack();
return(TgaStream.Create(info, pixels, reader.Flipped));
}
}
public override ImageData Read(Stream stream, ImageMetaData info)
{
var meta = (HgMetaData)info;
if (0x20 != meta.BPP)
{
throw new NotSupportedException("Not supported HG-3 color depth");
}
using (var input = new StreamRegion(stream, 0x14, true))
using (var reader = new Hg3Reader(input, meta))
{
var pixels = reader.Unpack();
if (reader.Flipped)
{
return(ImageData.CreateFlipped(info, PixelFormats.Bgra32, null, pixels, reader.Stride));
}
else
{
return(ImageData.Create(info, PixelFormats.Bgra32, null, pixels, reader.Stride));
}
}
}