Lines Matching defs:gamma
107 float bright, cont, gamma;
115 gamma = (float)pPriv->gamma / 1000.0;
118 /* overlay video also does pre-gamma contrast/sat adjust, should we? */
132 gamma = 1.0;
134 if (gamma != 1.0) {
136 /* note: gamma correction is out = in ^ gamma;
138 in ^ gamma = 2 ^ (log2(in) * gamma).
140 without gamma that's 3 inst, with gamma it's 10...
141 could use different gamma factors per channel,
154 ps_alu_consts[7] = gamma;