private static void FlipImage(BaseBitmap bitmap, Bitmap.Image image)
{
switch (image.Format)
{
case BitmapFormat.Dxt1:
case BitmapFormat.Dxt3:
case BitmapFormat.Dxt5:
case BitmapFormat.Dxn:
for (int j = 0; j < bitmap.Data.Length; j += 2)
{
Array.Reverse(bitmap.Data, j, 2);
}
break;
case BitmapFormat.AY8:
case BitmapFormat.Y8:
case BitmapFormat.A8:
case BitmapFormat.Dxt5aMono:
case BitmapFormat.Dxt3aMono:
case BitmapFormat.Dxt3aAlpha:
case BitmapFormat.Dxt5aAlpha:
case BitmapFormat.Ctx1:
case BitmapFormat.DxnMonoAlpha:
case BitmapFormat.Dxt5a:
case BitmapFormat.R5G6B5:
case BitmapFormat.A4R4G4B4:
break;
case BitmapFormat.A8R8G8B8:
case BitmapFormat.X8R8G8B8:
for (int j = 0; j < bitmap.Data.Length; j += 4)
{
Array.Reverse(bitmap.Data, j, 4);
}
break;
case BitmapFormat.A16B16G16R16F:
case BitmapFormat.A8Y8:
case BitmapFormat.V8U8:
for (int j = 0; j < bitmap.Data.Length; j += 2)
{
Array.Reverse(bitmap.Data, j, 2);
}
break;
default:
throw new Exception($"Unsupported format {image.Format} flipping");
}
if (bitmap.Format == BitmapFormat.Dxn)
{
bitmap.Data = BitmapDecoder.SwapXYDxn(bitmap.Data, bitmap.Width, bitmap.Height);
}
}
public static byte[] ConvertXboxFormats(byte[] data, uint width, uint height, BitmapFormat format, bool requireDecompression)
{
BitmapFormat destinationFormat = GetEquivalentBitmapFormat(format);
if (format == BitmapFormat.Dxn)
{
// flip x and y channels
data = BitmapDecoder.SwapXYDxn(data, (int)width, (int)height);
}
if (destinationFormat == format && !requireDecompression)
{
return(data);
}
if (format == BitmapFormat.Ctx1)
{
data = BitmapDecoder.Ctx1ToDxn(data, (int)width, (int)height);
format = BitmapFormat.Dxn;
}
else if (format != destinationFormat)
{
byte[] uncompressedData = BitmapDecoder.DecodeBitmap(data, format, (int)width, (int)height);
uncompressedData = TrimAlignedBitmap(format, destinationFormat, (int)width, (int)height, uncompressedData);
data = BitmapDecoder.EncodeBitmap(uncompressedData, destinationFormat, (int)width, (int)height);
format = destinationFormat;
}
if (requireDecompression)
{
data = ConvertNonMultipleBlockSizeBitmap(data, width, height, format);
}
return(data);
}