Lines Matching refs:dx
77 int dx; /* local storage */ \
85 dx = (x2) - xStart; \
86 if (dx < 0) { \
87 m = dx / (dy); \
89 incr1 = -2 * dx + 2 * (dy) * m1; \
90 incr2 = -2 * dx + 2 * (dy) * m; \
91 d = 2 * m * (dy) - 2 * dx - 2 * (dy); \
93 m = dx / (dy); \
95 incr1 = 2 * dx - 2 * (dy) * m1; \
96 incr2 = 2 * dx - 2 * (dy) * m; \
97 d = -2 * m * (dy) + 2 * dx; \