diff options
Diffstat (limited to 'indra/llwindow/llwindowwin32.cpp')
| -rw-r--r-- | indra/llwindow/llwindowwin32.cpp | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp index 504c1589b0..27787a51a8 100644 --- a/indra/llwindow/llwindowwin32.cpp +++ b/indra/llwindow/llwindowwin32.cpp @@ -425,6 +425,9 @@ LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks, mKeyVirtualKey = 0; mhDC = NULL; mhRC = NULL; + memset(mCurrentGammaRamp, 0, sizeof(mCurrentGammaRamp)); + memset(mPrevGammaRamp, 0, sizeof(mPrevGammaRamp)); + mCustomGammaSet = FALSE; if (!SystemParametersInfo(SPI_GETMOUSEVANISH, 0, &mMouseVanish, 0)) { @@ -2989,13 +2992,26 @@ 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 ) @@ -3007,9 +3023,9 @@ 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 ); |