diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/x11/SDL_x11gamma.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/x11/SDL_x11gamma.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/distrib/sdl-1.2.12/src/video/x11/SDL_x11gamma.c b/distrib/sdl-1.2.12/src/video/x11/SDL_x11gamma.c deleted file mode 100644 index 4bb998f..0000000 --- a/distrib/sdl-1.2.12/src/video/x11/SDL_x11gamma.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -#include "SDL.h" -#include "SDL_events.h" -#include "../../events/SDL_events_c.h" -#include "SDL_x11video.h" - -/* From the X server sources... */ -#define MAX_GAMMA 10.0 -#define MIN_GAMMA (1.0/MAX_GAMMA) - -static int X11_SetGammaNoLock(_THIS, float red, float green, float blue) -{ -#if SDL_VIDEO_DRIVER_X11_VIDMODE - if (use_vidmode >= 200) { - SDL_NAME(XF86VidModeGamma) gamma; - Bool succeeded; - - /* Clamp the gamma values */ - if ( red < MIN_GAMMA ) { - gamma.red = MIN_GAMMA; - } else - if ( red > MAX_GAMMA ) { - gamma.red = MAX_GAMMA; - } else { - gamma.red = red; - } - if ( green < MIN_GAMMA ) { - gamma.green = MIN_GAMMA; - } else - if ( green > MAX_GAMMA ) { - gamma.green = MAX_GAMMA; - } else { - gamma.green = green; - } - if ( blue < MIN_GAMMA ) { - gamma.blue = MIN_GAMMA; - } else - if ( blue > MAX_GAMMA ) { - gamma.blue = MAX_GAMMA; - } else { - gamma.blue = blue; - } - if ( SDL_GetAppState() & SDL_APPACTIVE ) { - succeeded = SDL_NAME(XF86VidModeSetGamma)(SDL_Display, SDL_Screen, &gamma); - XSync(SDL_Display, False); - } else { - gamma_saved[0] = gamma.red; - gamma_saved[1] = gamma.green; - gamma_saved[2] = gamma.blue; - succeeded = True; - } - if ( succeeded ) { - ++gamma_changed; - } - return succeeded ? 0 : -1; - } -#endif - SDL_SetError("Gamma correction not supported"); - return -1; -} -int X11_SetVidModeGamma(_THIS, float red, float green, float blue) -{ - int result; - - SDL_Lock_EventThread(); - result = X11_SetGammaNoLock(this, red, green, blue); - SDL_Unlock_EventThread(); - - return(result); -} - -static int X11_GetGammaNoLock(_THIS, float *red, float *green, float *blue) -{ -#if SDL_VIDEO_DRIVER_X11_VIDMODE - if (use_vidmode >= 200) { - SDL_NAME(XF86VidModeGamma) gamma; - if (SDL_NAME(XF86VidModeGetGamma)(SDL_Display, SDL_Screen, &gamma)) { - *red = gamma.red; - *green = gamma.green; - *blue = gamma.blue; - return 0; - } - return -1; - } -#endif - return -1; -} -int X11_GetVidModeGamma(_THIS, float *red, float *green, float *blue) -{ - int result; - - SDL_Lock_EventThread(); - result = X11_GetGammaNoLock(this, red, green, blue); - SDL_Unlock_EventThread(); - - return(result); -} - -void X11_SaveVidModeGamma(_THIS) -{ - /* Try to save the current gamma, otherwise disable gamma control */ - if ( X11_GetGammaNoLock(this, - &gamma_saved[0], &gamma_saved[1], &gamma_saved[2]) < 0 ) { - this->SetGamma = 0; - this->GetGamma = 0; - } - gamma_changed = 0; -} -void X11_SwapVidModeGamma(_THIS) -{ - float new_gamma[3]; - - if ( gamma_changed ) { - new_gamma[0] = gamma_saved[0]; - new_gamma[1] = gamma_saved[1]; - new_gamma[2] = gamma_saved[2]; - X11_GetGammaNoLock(this, &gamma_saved[0], &gamma_saved[1], &gamma_saved[2]); - X11_SetGammaNoLock(this, new_gamma[0], new_gamma[1], new_gamma[2]); - } -} |