197 static void adjust(apiflt *base,  in adjust()  argument
210     if (base[x + (xres * y)] == 0.0) {  in adjust()
213         v = (base[xa + (xres * ya)] + base[xb + (xres * yb)]) / 2.0 +  in adjust()
220         base[x + (xres * y)] = v;  in adjust()
225 subdivide(apiflt *base, int xres, int yres, apiflt wx, apiflt wy, int x1, int y1, int x2, int y2) {  in subdivide()  argument
235     adjust(base, xres, yres, wx, wy, x1, y1, x, y1, x2, y1);  in subdivide()
236     adjust(base, xres, yres, wx, wy, x2, y1, x2, y, x2, y2);  in subdivide()
237     adjust(base, xres, yres, wx, wy, x1, y2, x, y2, x2, y2);  in subdivide()
238     adjust(base, xres, yres, wx, wy, x1, y1, x1, y, x1, y2);  in subdivide()
240     if (base[x + xres * y] == 0.0) {  in subdivide()
241         base[x + (xres * y)] = (base[x1 + xres * y1] + base[x2 + xres * y1] + base[x2 + xres * y2] +  in subdivide()
242                                 base[x1 + xres * y2]) /  in subdivide()
246     subdivide(base, xres, yres, wx, wy, x1, y1, x, y);  in subdivide()
247     subdivide(base, xres, yres, wx, wy, x, y1, x2, y);  in subdivide()
248     subdivide(base, xres, yres, wx, wy, x, y, x2, y2);  in subdivide()
249     subdivide(base, xres, yres, wx, wy, x1, y, x, y2);  in subdivide()