412     const float* ccur  = c.ptr<float>(0);  in nld_step_scalar()  local
418         xpos = (ccur[j]   + ccur[j+1]) * (ldcur[j+1] - ldcur[j]);  in nld_step_scalar()
419         xneg = (ccur[j-1] + ccur[j])   * (ldcur[j]   - ldcur[j-1]);  in nld_step_scalar()
420         ypos = (ccur[j]   + cnxt[j])   * (ldnxt[j]   - ldcur[j]);  in nld_step_scalar()
425     ccur = c.ptr<float>(Lstep.rows - 1);  in nld_step_scalar()
431         xpos = (ccur[j] + ccur[j+1]) * (ldcur[j+1] - ldcur[j]);  in nld_step_scalar()
432         xneg = (ccur[j-1] + ccur[j]) * (ldcur[j] - ldcur[j-1]);  in nld_step_scalar()
433         yneg = (cprv[j] + ccur[j])   * (ldcur[j] - ldprv[j]);  in nld_step_scalar()
437     ccur = c.ptr<float>(1);  in nld_step_scalar()
450         xpos = (ccur[0] + ccur[1]) * (ldcur[1] - ldcur[0]);  in nld_step_scalar()
451         ypos = (ccur[0] + cnxt[0]) * (ldnxt[0] - ldcur[0]);  in nld_step_scalar()
452         yneg = (cprv[0] + ccur[0]) * (ldcur[0] - ldprv[0]);  in nld_step_scalar()
455         xneg = (ccur[r1] + ccur[r0]) * (ldcur[r0] - ldcur[r1]);  in nld_step_scalar()
456         ypos = (ccur[r0] + cnxt[r0]) * (ldnxt[r0] - ldcur[r0]);  in nld_step_scalar()
457         yneg = (cprv[r0] + ccur[r0]) * (ldcur[r0] - ldprv[r0]);  in nld_step_scalar()
460         cprv = ccur;  in nld_step_scalar()
461         ccur = cnxt;  in nld_step_scalar()