public void Extract(Stream output)
{
using (var file = MemoryMappedFile.CreateFromFile(this.ParentFile, FileMode.Open))
{
using (var viewstream = file.CreateViewStream((PageOffset * 4096) + 9, ZSize, MemoryMappedFileAccess.Read))
{
//TODO: Finish this once we have a proper dds reader/writer
byte Dxt = BitConverter.GetBytes(Type)[0];
uint fmt = 0;
if (Dxt == 7)
{
fmt = 1;
}
else if (Dxt == 8)
{
fmt = 4;
}
else if (Dxt == 10)
{
fmt = 4;
}
else if (Dxt == 13)
{
fmt = 3;
}
else if (Dxt == 14)
{
fmt = 6;
}
else if (Dxt == 15)
{
fmt = 4;
}
else if (Dxt == 253)
{
fmt = 0;
}
else if (Dxt == 0)
{
fmt = 0;
}
else
{
throw new Exception("Invalid image!");
}
var cubemap = (Type == 3 || Type == 0) && (SliceCount == 6);
uint depth = 0;
if (SliceCount > 1 && Type == 4)
{
depth = SliceCount;
}
if (Type == 3 && Dxt == 253)
{
BaseAlignment = 32;
}
var header = new DDSHeader().generate(
BaseWidth,
BaseHeight,
TotalMipsCount,
fmt,
BaseAlignment,
IsCube == 1,
depth)
.Concat(BitConverter.GetBytes((Int32)0)).ToArray();
output.Write(header, 0, header.Length);
if (!(SliceCount == 6 && (Type == 253 || Type == 0)))
{
using (var zs = new ZlibStream(viewstream, CompressionMode.Decompress))
{
zs.CopyTo(output);
}
}
}
}
}
/// <summary>
/// Convert a CBitmapTexture's image to a DDS image
/// </summary>
/// <returns>A proper dds file</returns>
public static Bitmap Xbm2Dds(CR2WChunk imagechunk)
{
try
{
var image = ((CBitmapTexture)(imagechunk.data)).Image;
var compression = imagechunk.GetVariableByName("compression").ToString();
var width = uint.Parse(imagechunk.GetVariableByName("width").ToString());
var height = uint.Parse(imagechunk.GetVariableByName("height").ToString());
var mips = imagechunk.GetVariableByName("residentMipIndex") != null?uint.Parse(imagechunk.GetVariableByName("residentMipIndex").ToString()) : 0;
var tempfile = new MemoryStream();
var dxt = DDSHeader.Format_DXT1;
switch (compression)
{
case "TCM_DXTNoAlpha":
dxt = DDSHeader.Format_DXT1;
break;
case "TCM_DXTAlpha":
dxt = DDSHeader.Format_DXT5;
break;
case "TCM_NormalsHigh":
dxt = DDSHeader.Format_DXT5;
break;
case "TCM_Normals":
dxt = DDSHeader.Format_DXT1;
break;
case "TCM_NormalsGloss":
dxt = DDSHeader.Format_DXT5;
break;
case "TCM_QualityControl":
dxt = DDSHeader.Format_DXT5;
break;
default:
throw new Exception("Invalid compression type! [" + compression + "]");
}
DDSHeader ddsheader = new DDSHeader();
using (var bw = new BinaryWriter(tempfile))
{
bw.Write(ddsheader.generate(width, height, mips, dxt).ToArray());
//bw.Write(image.Bytes); // First 20 bytes is garbage
bw.Write((new ArraySegment <byte>(image.Bytes, 20, image.Bytes.Length - 20)).ToArray());
}
tempfile.Flush();
#if DEBUG
//File.WriteAllBytes(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\asd.dds",tempfile.ToArray());
#endif
return(new DdsImage(tempfile.ToArray()).BitmapImage);
}
catch (Exception e)
{
string message = e.Message;
string caption = "Error!";
MessageBoxButtons buttons = MessageBoxButtons.OK;
MessageBox.Show(message, caption, buttons);
return(null);
}
}
public void Extract(Stream output)
{
using (var file = MemoryMappedFile.CreateFromFile(this.ParentFile, FileMode.Open))
{
using (var viewstream = file.CreateViewStream((Offset * 4096) + 9, ZSize, MemoryMappedFileAccess.Read))
{
uint fmt = 0;
if (Dxt == 7)
{
fmt = 1;
}
else if (Dxt == 8)
{
fmt = 4;
}
else if (Dxt == 10)
{
fmt = 4;
}
else if (Dxt == 13)
{
fmt = 3;
}
else if (Dxt == 14)
{
fmt = 6;
}
else if (Dxt == 15)
{
fmt = 4;
}
else if (Dxt == 253)
{
fmt = 0;
}
else if (Dxt == 0)
{
fmt = 0;
}
else
{
throw new Exception("Invalid image!");
}
var cubemap = (Type == 3 || Type == 0) && (Typeinfo == 6);
uint depth = 0;
if (Typeinfo > 1 && Type == 4)
{
depth = Typeinfo;
}
if (Type == 3 && Dxt == 253)
{
Bpp = 32;
}
var header = new DDSHeader().generate(Width, Height, 1, fmt, Bpp, cubemap, depth)
.Concat(new[] { (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00 }).ToArray();
output.Write(header, 0, header.Length);
if (!(Typeinfo == 6 && (Dxt == 253 || Dxt == 0)))
{
var zlib = new ZlibStream(viewstream, CompressionMode.Decompress);
zlib.CopyTo(output);
}
}
}
}
