Lines Matching defs:xx

1551 	int sx, sy, xx, yy, xy, width;
1561 	xx = x0 - x1;
1563 	curvature = xx*sy - yy*sx;
1565 	if (sx*sx + sy*sy > xx*xx+yy*yy) {
1573 		xx += sx;
1575 		xx *= sx;
1579 		xy = (xx*yy) << 1;
1580 		xx *= xx;
1583 			xx = -xx;
1588 		dx = 4 * sy * curvature * (x1 - x0) + xx - xy;
1590 		xx += xx;
1608 				dx += xx;
1864 #define	GETPIXEL(xx, yy)	(((yy) * png->width + (xx)) * png->bpp)