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fix nvidia multimon gamma issue ("if at first you fail, try again..")

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refs #480

This was SVN commit r7421.
This commit is contained in:
janwas 2010-03-31 22:26:08 +00:00
parent bcb462ad87
commit 870fe8bfe5
1 changed files with 10 additions and 5 deletions
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15
source/lib/sysdep/os/win/wsdl.cpp
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@ -140,11 +140,16 @@ private:
WinScopedPreserveLastError s;
SetLastError(0);
debug_assert(wutil_IsValidHandle(g_hDC));
const BOOL ok = SetDeviceGammaRamp(g_hDC, ramps);
// The call often fails, especially on multi-monitor systems, and we don't
// know how to fix/avoid the underlying problem, so just ignore the failure here
//debug_assert(ok);
return !!ok;
BOOL ok = SetDeviceGammaRamp(g_hDC, ramps);
// on multi-monitor NVidia systems, the first call after a reboot
// fails, but subsequent ones succeed.
// see http://icculus.org/pipermail/quake3-bugzilla/2009-October/001316.html
if(ok == FALSE)
{
ok = SetDeviceGammaRamp(g_hDC, ramps);
debug_assert(ok);
}
return (ok == TRUE);
}
bool m_hasChanged;