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handle sentinel values for refresh rate instead of asserting

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This commit is contained in:
Chris Danford
2005-11-10 10:22:15 +00:00
parent 34debc4e59
commit af115bab90
1 changed files with 20 additions and 1 deletions
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stepmania/src/RageDisplay_D3D.cpp
+20 -1
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@@ -582,7 +582,26 @@ CString RageDisplay_D3D::TryVideoMode( VideoModeParams p, bool &bNewDeviceOut )
dm.dmSize = sizeof(dm);
if( EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &dm) )
{
g_iActualRefreshRateInHz = dm.dmDisplayFrequency;
/*
* On a nForce 2 IGP on Windows 98, dm.dmDisplayFrequency sometimes
* (but not always) is 0.
*
* MSDN: When you call the EnumDisplaySettings function, the
* dmDisplayFrequency member may return with the value 0 or 1.
* These values represent the display hardware's default refresh rate.
* This default rate is typically set by switches on a display card or
* computer motherboard, or by a configuration program that does not
* use Win32 display functions such as ChangeDisplaySettings.
*/
if( dm.dmDisplayFrequency == 0 || dm.dmDisplayFrequency == 1 )
{
g_iActualRefreshRateInHz = 60;
LOG->Warn( "EnumDisplaySettings doesn't know what the refresh rate is. %d %d %d", dm.dmPelsWidth, dm.dmPelsHeight, dm.dmBitsPerPel );
}
else
{
g_iActualRefreshRateInHz = dm.dmDisplayFrequency;
}
}
else
{