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Fix gamma corruption

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This commit is contained in:
Drake Arconis
2018-01-01 07:47:48 -05:00
committed by Lirusaito
parent 54fe7a8606
commit a8e8f6d409
2 changed files with 24 additions and 6 deletions
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25
indra/llwindow/llwindowwin32.cpp
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@@ -422,6 +422,10 @@ LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
LL_INFOS() << "Desired FSAA Samples = " << mFSAASamples << LL_ENDL;
memset(mCurrentGammaRamp, 0, sizeof(mCurrentGammaRamp));
memset(mPrevGammaRamp, 0, sizeof(mPrevGammaRamp));
mCustomGammaSet = FALSE;
// Initialize the keyboard
gKeyboard = new LLKeyboardWin32();
gKeyboard->setCallbacks(callbacks);
@@ -3019,13 +3023,26 @@ F32 LLWindowWin32::getGamma()
BOOL LLWindowWin32::restoreGamma()
{
return SetDeviceGammaRamp(mhDC, mPrevGammaRamp);
if (mCustomGammaSet != FALSE)
{
mCustomGammaSet = FALSE;
return SetDeviceGammaRamp(mhDC, mPrevGammaRamp);
}
return TRUE;
}
BOOL LLWindowWin32::setGamma(const F32 gamma)
{
mCurrentGamma = gamma;
//Get the previous gamma ramp to restore later.
if (mCustomGammaSet == FALSE)
{
if (GetDeviceGammaRamp(mhDC, mPrevGammaRamp) == FALSE)
return FALSE;
mCustomGammaSet = TRUE;
}
LL_DEBUGS("Window") << "Setting gamma to " << gamma << LL_ENDL;
for ( int i = 0; i < 256; ++i )
@@ -3037,9 +3054,9 @@ BOOL LLWindowWin32::setGamma(const F32 gamma)
if ( value > 0xffff )
value = 0xffff;
mCurrentGammaRamp [ 0 * 256 + i ] =
mCurrentGammaRamp [ 1 * 256 + i ] =
mCurrentGammaRamp [ 2 * 256 + i ] = ( WORD )value;
mCurrentGammaRamp[0][i] =
mCurrentGammaRamp[1][i] =
mCurrentGammaRamp[2][i] = (WORD) value;
};
return SetDeviceGammaRamp ( mhDC, mCurrentGammaRamp );