public static void ToGtexHeader(DdsHeader header, GtexHeader output)
{
output.Width = (short)header.Width;
output.Height = (short)header.Height;
//output.Depth = (short)header.Depth;
if (header.MipMapCount > 1)
throw new NotImplementedException();
//output.LinerSize = header.PitchOrLinearSize;
//if (header.MipMapCount > 0)
// output.MipMapCount = (byte)header.MipMapCount;
if ((header.CubemapFlags & DdsHeaderCubemapFlags.Cubemap) == DdsHeaderCubemapFlags.Cubemap)
output.IsCubeMap = true;
if (header.PixelFormat.Equals(DdsPixelFormat.DXT1))
output.Format = GtexPixelFromat.Dxt1;
else if (header.PixelFormat.Equals(DdsPixelFormat.DXT3))
output.Format = GtexPixelFromat.Dxt3;
else if (header.PixelFormat.Equals(DdsPixelFormat.DXT5))
output.Format = GtexPixelFromat.Dxt5;
else if (header.PixelFormat.Equals(DdsPixelFormat.X8R8G8B8))
output.Format = GtexPixelFromat.X8R8G8B8;
else
throw new NotImplementedException();
}
public static void ToFileStream(DdsHeader header, Stream output)
{
byte[] buff = new byte[128];
using (SafeGCHandle handle = new SafeGCHandle(buff, GCHandleType.Pinned))
{
IntPtr ptr = handle.AddrOfPinnedObject();
Marshal.WriteInt32(ptr, DdsHeader.MagicHeader);
Marshal.StructureToPtr(header, ptr + 4, false);
output.Write(buff, 0, buff.Length);
}
}