Lines Matching defs:dx
766 int i, lightOnLeft, dx, dy, parallel, pointsSeen;
903 dx = poly[3].x - poly[0].x;
905 if (dx > 0) {
906 lightOnLeft = (dy <= dx);
908 lightOnLeft = (dy < dx);
1073 int dx, dy, dxNeg, dyNeg;
1107 dx = p2Ptr->x - p1Ptr->x;
1115 if (dx < 0) {
1117 dx = -dx;
1121 if (dy <= dx) {
1122 dy = ((distance * shiftTable[(dy<<7)/dx]) + 64) >> 7;
1128 dx = ((distance * shiftTable[(dx<<7)/dy]) + 64) >> 7;
1130 dx = -dx;
1132 p3Ptr->x += dx;