public static void Decode(this TEXFile file, Format format, ExtendedBinaryReader reader)
{
ImageBinary image;
var endian = file.UseBigEndian ? Endian.BigEndian : Endian.LittleEndian;
if ((format & Format.DXT1) != 0)
{
image = new ImageBinary(file.SheetWidth, file.SheetHeight, PixelDataFormat.FormatDXT1Rgba,
endian, PixelDataFormat.FormatAbgr8888, Endian.LittleEndian, file.SheetData);
file.SheetData = image.GetOutputPixelData(0);
}
else if ((format & Format.DXT5) != 0 || (format & Format.Large) != 0)
{
image = new ImageBinary(file.SheetWidth, file.SheetHeight, PixelDataFormat.FormatDXT5,
endian, PixelDataFormat.FormatAbgr8888, Endian.LittleEndian, file.SheetData);
file.SheetData = image.GetOutputPixelData(0);
}
else if ((format & Format.Luminance8) != 0)
{
image = new ImageBinary(file.SheetWidth, file.SheetHeight, PixelDataFormat.FormatLuminance8,
endian, PixelDataFormat.FormatAbgr8888, Endian.LittleEndian, file.SheetData);
file.SheetData = image.GetOutputPixelData(0);
}
else if ((format & Format.Luminance4) != 0)
{
image = new ImageBinary(file.SheetWidth, file.SheetHeight, PixelDataFormat.FormatLuminance4,
endian, PixelDataFormat.FormatAbgr8888, Endian.LittleEndian, file.SheetData);
file.SheetData = image.GetOutputPixelData(0);
}
else if ((format & Format.Unknown) != 0)
{
throw new InvalidTextureFormatException((int)format);
}
else if ((format & Format.Raster) != 0)
{
// Read Colour Palette
reader.JumpBehind(256 * 4);
var colorpalette = reader.ReadBytes(256 * 4);
var indies = file.SheetData;
file.SheetData = new byte[file.SheetWidth * file.SheetHeight * 4];
for (int i = 0; i < file.SheetWidth * file.SheetHeight; ++i)
{
file.SheetData[i * 4 + 0] = colorpalette[indies[i] * 4 + 0];
file.SheetData[i * 4 + 1] = colorpalette[indies[i] * 4 + 1];
file.SheetData[i * 4 + 2] = colorpalette[indies[i] * 4 + 2];
file.SheetData[i * 4 + 3] = colorpalette[indies[i] * 4 + 3];
}
}
else if ((format & Format.PNG) != 0)
{
using (var endStream = new MemoryStream())
using (var stream = new MemoryStream(file.SheetData))
{
var imagePNG = new Bitmap(Image.FromStream(stream));
var bitmap = imagePNG.LockBits(new Rectangle(0, 0, file.SheetWidth, file.SheetHeight), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
file.SheetData = new byte[file.SheetWidth * file.SheetHeight * 4];
Marshal.Copy(bitmap.Scan0, file.SheetData, 0, file.SheetWidth * file.SheetHeight * 4);
// Flip Red and Blue channels as this converter does not support ARGB
if (file.UseBigEndian)
{
ImageTools.FlipColors(file.SheetData);
}
imagePNG.UnlockBits(bitmap);
imagePNG.Dispose();
}
}
else if ((format & Format.BGRA) != 0)
{
return;
}
else
{
throw new InvalidTextureFormatException((int)format);
}
}