Lines Matching defs:dx
149 static inline SkFDot6 cheap_distance(SkFDot6 dx, SkFDot6 dy)
151 dx = SkAbs32(dx);
154 if (dx > dy)
155 dx += dy >> 1;
157 dx = dy + (dx >> 1);
158 return dx;
161 static inline int diff_to_shift(SkFDot6 dx, SkFDot6 dy)
164 SkFDot6 dist = cheap_distance(dx, dy);
217 SkFDot6 dx = ((x1 << 1) - x0 - x2) >> 2;
219 shift = diff_to_shift(dx, dy);
279 SkFixed dx = fQDx;
289 newx = oldx + (dx >> shift);
290 dx += fQDDx;
306 fQDx = dx;
388 SkFDot6 dx = cubic_delta_from_line(x0, x1, x2, x3);
391 shift = diff_to_shift(dx, dy) + 1;