Lines Matching refs:dx
74 int dx; /* local storage */ \
82 dx = (x2) - xStart; \
83 if (dx < 0) { \
84 m = dx / (dy); \
86 incr1 = -2 * dx + 2 * (dy) * m1; \
87 incr2 = -2 * dx + 2 * (dy) * m; \
88 d = 2 * m * (dy) - 2 * dx - 2 * (dy); \
90 m = dx / (dy); \
92 incr1 = 2 * dx - 2 * (dy) * m1; \
93 incr2 = 2 * dx - 2 * (dy) * m; \
94 d = -2 * m * (dy) + 2 * dx; \