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gl_vidsdl.c: small gamma update.

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git-svn-id: http://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@863 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
sezero 2013-07-25 09:41:28 +00:00
parent 35c9f5ccff
commit 3349866c81
1 changed files with 12 additions and 10 deletions
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22
Quake/gl_vidsdl.c
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@ -116,7 +116,7 @@ static unsigned short vid_sysgamma_green[256];
static unsigned short vid_sysgamma_blue[256];
#endif
static int vid_gammaworks;
static qboolean gammaworks = false; // whether hw-gamma works
/*
================
@ -125,10 +125,10 @@ VID_Gamma_SetGamma -- apply gamma correction
*/
static void VID_Gamma_SetGamma (void)
{
if (draw_context && vid_gammaworks)
if (draw_context && gammaworks)
{
#if USE_GAMMA_RAMPS
if (SDL_SetGammaRamp(&vid_gamma_red[0], &vid_gamma_green[0], &vid_gamma_blue[0]) == -1)
if (SDL_SetGammaRamp(vid_gamma_red, vid_gamma_green, vid_gamma_blue) == -1)
Con_Printf ("VID_Gamma_SetGamma: failed on SDL_SetGammaRamp\n");
#else
float value;
@ -151,10 +151,10 @@ VID_Gamma_Restore -- restore system gamma
*/
static void VID_Gamma_Restore (void)
{
if (draw_context && vid_gammaworks)
if (draw_context && gammaworks)
{
#if USE_GAMMA_RAMPS
if (SDL_SetGammaRamp(&vid_sysgamma_red[0], &vid_sysgamma_green[0], &vid_sysgamma_blue[0]) == -1)
if (SDL_SetGammaRamp(vid_sysgamma_red, vid_sysgamma_green, vid_sysgamma_blue) == -1)
Con_Printf ("VID_Gamma_Restore: failed on SDL_SetGammaRamp\n");
#else
if (SDL_SetGamma(1, 1, 1) == -1)
@ -201,14 +201,16 @@ VID_Gamma_Init -- call on init
*/
static void VID_Gamma_Init (void)
{
vid_gammaworks = false;
#if USE_GAMMA_RAMPS
if (SDL_GetGammaRamp (&vid_sysgamma_red[0], &vid_sysgamma_green[0], &vid_sysgamma_blue[0]) != -1)
gammaworks = (SDL_GetGammaRamp(vid_sysgamma_red, vid_sysgamma_green, vid_sysgamma_blue) == 0);
if (gammaworks)
gammaworks = (SDL_SetGammaRamp(vid_sysgamma_red, vid_sysgamma_green, vid_sysgamma_blue) == 0);
#else
if (SDL_SetGamma(1, 1, 1) != -1)
gammaworks = (SDL_SetGamma(1, 1, 1) == 0);
#endif
vid_gammaworks = true;
if (!gammaworks)
Con_SafePrintf("gamma adjustment not available\n");
Cvar_RegisterVariable (&vid_gamma);
Cvar_SetCallback (&vid_gamma, VID_Gamma_f);