OUTPUT:
RETVAL
+int
+video_set_gamma(r, g, b)
+ float r;
+ float g;
+ float b;
+ CODE:
+ RETVAL = SDL_SetGamma(r,g,b);
+
+ OUTPUT:
+ RETVAL
+
+int
+video_set_gamma_ramp( ... )
+ CODE:
+ Uint16 *redtable, *greentable, *bluetable;
+ RETVAL = SDL_SetGammaRamp(NULL, NULL, NULL);
+ OUTPUT:
+ RETVAL
+