Lines Matching refs:gamma
37 SDL_NAME(XF86VidModeGamma) gamma;
40 /* Clamp the gamma values */
42 gamma.red = MIN_GAMMA;
45 gamma.red = MAX_GAMMA;
47 gamma.red = red;
50 gamma.green = MIN_GAMMA;
53 gamma.green = MAX_GAMMA;
55 gamma.green = green;
58 gamma.blue = MIN_GAMMA;
61 gamma.blue = MAX_GAMMA;
63 gamma.blue = blue;
66 succeeded = SDL_NAME(XF86VidModeSetGamma)(SDL_Display, SDL_Screen, &gamma);
69 gamma_saved[0] = gamma.red;
70 gamma_saved[1] = gamma.green;
71 gamma_saved[2] = gamma.blue;
80 SDL_SetError("Gamma correction not supported");
98 SDL_NAME(XF86VidModeGamma) gamma;
99 if (SDL_NAME(XF86VidModeGetGamma)(SDL_Display, SDL_Screen, &gamma)) {
100 *red = gamma.red;
101 *green = gamma.green;
102 *blue = gamma.blue;
123 /* Try to save the current gamma, otherwise disable gamma control */
