Lines Matching defs:contrast
28 struct { /* gamma/brightness/contrast control cluster */
31 struct v4l2_ctrl *contrast;
5710 s32 gamma, s32 brightness, s32 contrast)
5718 static const u8 delta_c[16] = /* delta for contrast */
5738 contrast -= 128; /* -128 / 127 */
5744 - delta_c[i] * contrast / 256 - adj / 2;
5750 if (contrast > 0)
5752 else if (contrast < 0)
6386 /* gamma/brightness/contrast cluster */
6389 sd->brightness->val, sd->contrast->val);
6445 sd->contrast = v4l2_ctrl_new_std(hdl, &zcxx_ctrl_ops,
6785 v4l2_ctrl_g_ctrl(sd->contrast));