Lines Matching defs:invgamma
615 calcgammaval(int j, int nramp, float invgamma, float bri, float c)
636 if(invgamma == 1.0) {
639 v = pow(k / nrm1, invgamma) * 65535.0 + 0.5;
683 float invgamma = 0.0, bri = 0.0, con = 0.0;
686 case 0: invgamma = 1. / pScrn->gamma.red;
690 case 1: invgamma = 1. / pScrn->gamma.green;
694 case 2: invgamma = 1. / pScrn->gamma.blue;
701 ramp[i][j] = calcgammaval(j, nramp, invgamma, bri, con);
711 float invgamma = 0.0, v;
714 case 0: invgamma = 1. / pScrn->gamma.red; break;
715 case 1: invgamma = 1. / pScrn->gamma.green; break;
716 case 2: invgamma = 1. / pScrn->gamma.blue; break;
720 framp = pow(j * dramp, invgamma);