*blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5);
}
-static void TAG(encode_rgtc_chan)(TYPE *blkaddr, TYPE srccolors[4][4],
+static void TAG(encode_rgtc_ubyte)(TYPE *blkaddr, TYPE srccolors[4][4],
int numxpixels, int numypixels)
{
TYPE alphabase[2], alphause[2];