protected override void EncodeTile(byte[] src, int srcPos, int stride, byte[] dst, int dstPos)
{
int srcCurrentPos = srcPos, dstCurrentPos = dstPos;
for (int ty = 0; ty < TileHeight; ty++, srcCurrentPos += stride - TileWidth * 4)
{
for (int tx = 0; tx < TileWidth; tx++, srcCurrentPos += 4)
{
if ((tx & 1) == 0)
{
dst[dstCurrentPos] = (byte)(ColorConversion.ColorToI4(ColorRGBA.Read(src, srcCurrentPos)) << 4);
}
else if ((tx & 1) == 1)
{
dst[dstCurrentPos] |= ColorConversion.ColorToI4(ColorRGBA.Read(src, srcCurrentPos));
dstCurrentPos++;
}
}
}
}
protected override ColorRGBA TrimColor(ColorRGBA color)
{
return(ColorConversion.I4ToColor(ColorConversion.ColorToI4(color)));
}
