static void WriteUncompressedPixel(byte[] source, int sourceStart, int[] sourceInds, DDSFormatDetails sourceFormatDetails, uint[] masks,
byte[] destination, int destStart, int[] destInds, DDSFormatDetails destFormatDetails, bool oneChannel, bool twoChannel, bool requiresSignedAdjust)
{
if (twoChannel) // No large components - silly spec...
{
byte red = sourceFormatDetails.ReadByte(source, sourceStart);
byte alpha = sourceFormatDetails.ReadByte(source, sourceStart + 3 * sourceFormatDetails.ComponentSize);
destination[destStart] = masks[3] > masks[2] ? red : alpha;
destination[destStart + 1] = masks[3] > masks[2] ? alpha : red;
}
else if (oneChannel) // No large components - silly spec...
{
byte blue = sourceFormatDetails.ReadByte(source, sourceStart);
byte green = sourceFormatDetails.ReadByte(source, sourceStart + 1 * sourceFormatDetails.ComponentSize);
byte red = sourceFormatDetails.ReadByte(source, sourceStart + 2 * sourceFormatDetails.ComponentSize);
byte alpha = sourceFormatDetails.ReadByte(source, sourceStart + 3 * sourceFormatDetails.ComponentSize);
destination[destStart] = (byte)(blue * 0.082 + green * 0.6094 + blue * 0.3086); // Weightings taken from ATI Compressonator. Dunno if this changes things much.
}
else
{
// Handle weird conditions where array isn't long enough...
if (sourceInds[3] + sourceStart >= source.Length)
{
return;
}
for (int i = 0; i < 4; i++)
{
uint mask = masks[i];
if (mask != 0)
{
destFormatDetails.WriteColor(source, sourceStart + sourceInds[i], sourceFormatDetails, destination, destStart + destInds[i]);
}
}
// Signed adjustments - Only happens for bytes for now. V8U8
if (requiresSignedAdjust)
{
destination[destStart + destInds[2]] += 128;
destination[destStart + destInds[1]] += 128;
}
}
}