Lines Matching refs:contrast
176 (ldec<<5) | (H(bt->contrast)<<2) | (H(bt->sat_u)<<1) | H(bt->sat_v));
181 btwrite(bt, CONTRAST_LO, L(bt->contrast));
519 bt->contrast = 216; /* hardware default */
596 void bt829_SetContrast(BT829Ptr bt, int contrast)
598 contrast = LIMIT(contrast,-1000,1000);
599 contrast = (216*(contrast+1000))/1000;
600 if (contrast == bt->contrast) return;
601 bt->contrast = contrast;