Lines Matching refs:dx
75 int dx; /* local storage */ \
83 dx = (x2) - xStart; \
84 if (dx < 0) { \
85 m = dx / (dy); \
87 incr1 = -2 * dx + 2 * (dy) * m1; \
88 incr2 = -2 * dx + 2 * (dy) * m; \
89 d = 2 * m * (dy) - 2 * dx - 2 * (dy); \
91 m = dx / (dy); \
93 incr1 = 2 * dx - 2 * (dy) * m1; \
94 incr2 = 2 * dx - 2 * (dy) * m; \
95 d = -2 * m * (dy) + 2 * dx; \