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* Avoid calculating a NaN when failing to compute the display aspect ratio

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This commit is contained in:
Tim Angus 2009-09-28 11:57:16 +00:00
parent a7d33b1c54
commit 0ba8b20305
1 changed files with 13 additions and 5 deletions
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18
code/sdl/sdl_glimp.c
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@ -239,12 +239,20 @@ static int GLimp_SetMode( int mode, qboolean fullscreen )
sVideoInfo.vfmt = &sPixelFormat;
videoInfo = &sVideoInfo;
// Guess the display aspect ratio through the desktop resolution
// by assuming (relatively safely) that it is set at or close to
// the display's native aspect ratio
displayAspect = (float)videoInfo->current_w / (float)videoInfo->current_h;
if( videoInfo->current_h > 0 )
{
// Guess the display aspect ratio through the desktop resolution
// by assuming (relatively safely) that it is set at or close to
// the display's native aspect ratio
displayAspect = (float)videoInfo->current_w / (float)videoInfo->current_h;
ri.Printf( PRINT_ALL, "Estimated display aspect: %.3f\n", displayAspect );
ri.Printf( PRINT_ALL, "Estimated display aspect: %.3f\n", displayAspect );
}
else
{
ri.Printf( PRINT_ALL,
"Cannot estimate display aspect, assuming 1.333f\n" );
}
}
#endif