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Diffstat (limited to 'code/win32/win_gamma.c')
| -rw-r--r-- | code/win32/win_gamma.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/code/win32/win_gamma.c b/code/win32/win_gamma.c deleted file mode 100644 index 85eab3f..0000000 --- a/code/win32/win_gamma.c +++ /dev/null @@ -1,214 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code is free software; you can redistribute it -and/or modify it under the terms of the GNU General Public License as -published by the Free Software Foundation; either version 2 of the License, -or (at your option) any later version. - -Quake III Arena source code 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 General Public License for more details. - -You should have received a copy of the GNU General Public License -along with Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ -/* -** WIN_GAMMA.C -*/ -#include <assert.h> -#include "../renderer/tr_local.h" -#include "../qcommon/qcommon.h" -#include "glw_win.h" -#include "win_local.h" - -static unsigned short s_oldHardwareGamma[3][256]; - -/* -** WG_CheckHardwareGamma -** -** Determines if the underlying hardware supports the Win32 gamma correction API. -*/ -void WG_CheckHardwareGamma( void ) -{ - HDC hDC; - - glConfig.deviceSupportsGamma = qfalse; - - if ( qwglSetDeviceGammaRamp3DFX ) - { - glConfig.deviceSupportsGamma = qtrue; - - hDC = GetDC( GetDesktopWindow() ); - glConfig.deviceSupportsGamma = qwglGetDeviceGammaRamp3DFX( hDC, s_oldHardwareGamma ); - ReleaseDC( GetDesktopWindow(), hDC ); - - return; - } - - // non-3Dfx standalone drivers don't support gamma changes, period - if ( glConfig.driverType == GLDRV_STANDALONE ) - { - return; - } - - if ( !r_ignorehwgamma->integer ) - { - hDC = GetDC( GetDesktopWindow() ); - glConfig.deviceSupportsGamma = GetDeviceGammaRamp( hDC, s_oldHardwareGamma ); - ReleaseDC( GetDesktopWindow(), hDC ); - - if ( glConfig.deviceSupportsGamma ) - { - // - // do a sanity check on the gamma values - // - if ( ( HIBYTE( s_oldHardwareGamma[0][255] ) <= HIBYTE( s_oldHardwareGamma[0][0] ) ) || - ( HIBYTE( s_oldHardwareGamma[1][255] ) <= HIBYTE( s_oldHardwareGamma[1][0] ) ) || - ( HIBYTE( s_oldHardwareGamma[2][255] ) <= HIBYTE( s_oldHardwareGamma[2][0] ) ) ) - { - glConfig.deviceSupportsGamma = qfalse; - ri.Printf( PRINT_WARNING, "WARNING: device has broken gamma support, generated gamma.dat\n" ); - } - - // - // make sure that we didn't have a prior crash in the game, and if so we need to - // restore the gamma values to at least a linear value - // - if ( ( HIBYTE( s_oldHardwareGamma[0][181] ) == 255 ) ) - { - int g; - - ri.Printf( PRINT_WARNING, "WARNING: suspicious gamma tables, using linear ramp for restoration\n" ); - - for ( g = 0; g < 255; g++ ) - { - s_oldHardwareGamma[0][g] = g << 8; - s_oldHardwareGamma[1][g] = g << 8; - s_oldHardwareGamma[2][g] = g << 8; - } - } - } - } -} - -/* -void mapGammaMax( void ) { - int i, j; - unsigned short table[3][256]; - - // try to figure out what win2k will let us get away with setting - for ( i = 0 ; i < 256 ; i++ ) { - if ( i >= 128 ) { - table[0][i] = table[1][i] = table[2][i] = 0xffff; - } else { - table[0][i] = table[1][i] = table[2][i] = i<<9; - } - } - - for ( i = 0 ; i < 128 ; i++ ) { - for ( j = i*2 ; j < 255 ; j++ ) { - table[0][i] = table[1][i] = table[2][i] = j<<8; - if ( !SetDeviceGammaRamp( glw_state.hDC, table ) ) { - break; - } - } - table[0][i] = table[1][i] = table[2][i] = i<<9; - Com_Printf( "index %i max: %i\n", i, j-1 ); - } -} -*/ - -/* -** GLimp_SetGamma -** -** This routine should only be called if glConfig.deviceSupportsGamma is TRUE -*/ -void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] ) { - unsigned short table[3][256]; - int i, j; - int ret; - OSVERSIONINFO vinfo; - - if ( !glConfig.deviceSupportsGamma || r_ignorehwgamma->integer || !glw_state.hDC ) { - return; - } - -//mapGammaMax(); - - for ( i = 0; i < 256; i++ ) { - table[0][i] = ( ( ( unsigned short ) red[i] ) << 8 ) | red[i]; - table[1][i] = ( ( ( unsigned short ) green[i] ) << 8 ) | green[i]; - table[2][i] = ( ( ( unsigned short ) blue[i] ) << 8 ) | blue[i]; - } - - // Win2K and newer put this odd restriction on gamma ramps... - vinfo.dwOSVersionInfoSize = sizeof(vinfo); - GetVersionEx( &vinfo ); - if ( vinfo.dwMajorVersion >= 5 && vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT ) { - Com_DPrintf( "performing gamma clamp.\n" ); - for ( j = 0 ; j < 3 ; j++ ) { - for ( i = 0 ; i < 128 ; i++ ) { - if ( table[j][i] > ( (128+i) << 8 ) ) { - table[j][i] = (128+i) << 8; - } - } - if ( table[j][127] > 254<<8 ) { - table[j][127] = 254<<8; - } - } - } else { - Com_DPrintf( "skipping gamma clamp.\n" ); - } - - // enforce constantly increasing - for ( j = 0 ; j < 3 ; j++ ) { - for ( i = 1 ; i < 256 ; i++ ) { - if ( table[j][i] < table[j][i-1] ) { - table[j][i] = table[j][i-1]; - } - } - } - - - if ( qwglSetDeviceGammaRamp3DFX ) - { - qwglSetDeviceGammaRamp3DFX( glw_state.hDC, table ); - } - else - { - ret = SetDeviceGammaRamp( glw_state.hDC, table ); - if ( !ret ) { - Com_Printf( "SetDeviceGammaRamp failed.\n" ); - } - } -} - -/* -** WG_RestoreGamma -*/ -void WG_RestoreGamma( void ) -{ - if ( glConfig.deviceSupportsGamma ) - { - if ( qwglSetDeviceGammaRamp3DFX ) - { - qwglSetDeviceGammaRamp3DFX( glw_state.hDC, s_oldHardwareGamma ); - } - else - { - HDC hDC; - - hDC = GetDC( GetDesktopWindow() ); - SetDeviceGammaRamp( hDC, s_oldHardwareGamma ); - ReleaseDC( GetDesktopWindow(), hDC ); - } - } -} - |