Lines Matching refs:dy
766 int i, lightOnLeft, dx, dy, parallel, pointsSeen;
904 dy = poly[3].y - poly[0].y;
906 lightOnLeft = (dy <= dx);
908 lightOnLeft = (dy < dx);
1073 int dx, dy, dxNeg, dyNeg;
1108 dy = p2Ptr->y - p1Ptr->y;
1109 if (dy < 0) {
1111 dy = -dy;
1121 if (dy <= dx) {
1122 dy = ((distance * shiftTable[(dy<<7)/dx]) + 64) >> 7;
1124 dy = -dy;
1126 p3Ptr->y += dy;
1128 dx = ((distance * shiftTable[(dx<<7)/dy]) + 64) >> 7;