1637 void init_y(context_t* c, int32_t ys)  in init_y()  argument
1645     ci.y = ys;  in init_y()
1648         ci.ydzdy = interpolate(ys, c->shade.z0, c->shade.dzdx, c->shade.dzdy);  in init_y()
1649         ci.ydwdy = interpolate(ys, c->shade.w0, c->shade.dwdx, c->shade.dwdy);  in init_y()
1650         ci.ydfdy = interpolate(ys, c->shade.f0, c->shade.dfdx, c->shade.dfdy);  in init_y()
1654         ci.ydrdy = interpolate(ys, c->shade.r0, c->shade.drdx, c->shade.drdy);  in init_y()
1655         ci.ydgdy = interpolate(ys, c->shade.g0, c->shade.dgdx, c->shade.dgdy);  in init_y()
1656         ci.ydbdy = interpolate(ys, c->shade.b0, c->shade.dbdx, c->shade.dbdy);  in init_y()
1657         ci.ydady = interpolate(ys, c->shade.a0, c->shade.dadx, c->shade.dady);  in init_y()
1707                     const int32_t sy = interpolate(ys,  in init_y()
1720                     const int32_t ty = interpolate(ys,  in init_y()
1910     const uint32_t ys = c->iterators.y;  in scanline_perspective()  local
1932                      (tmu.shade.idsdy * ys) + (tmu.shade.idsdx * xs) +  in scanline_perspective()
1935                      (tmu.shade.idtdy * ys) + (tmu.shade.idtdx * xs) +  in scanline_perspective()
2001     const uint32_t ys = c->iterators.y;  in scanline_perspective_single()  local
2018                  (tmu.shade.idsdy * ys) + (tmu.shade.idsdx * xs) +  in scanline_perspective_single()
2021                  (tmu.shade.idtdy * ys) + (tmu.shade.idtdx * xs) +  in scanline_perspective_single()