1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2012 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 19 Sam Lantinga 20 slouken@libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 #ifndef _SDL_x11gamma_h 25 #define _SDL_x11gamma_h 26 27 extern int X11_SetVidModeGamma(_THIS, float red, float green, float blue); 28 extern int X11_GetVidModeGamma(_THIS, float *red, float *green, float *blue); 29 extern void X11_SaveVidModeGamma(_THIS); 30 extern void X11_SwapVidModeGamma(_THIS); 31 32 #endif 33