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Float to int is slow on ppc. It requires a store, a big stall, and then a load. It's even worse on a G5 if the compiler is dumb (and let's face it, I'm using gcc here...). Just use lroundf when we want an int. It will certainly be no slower.

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This commit is contained in:
Steve Checkoway
2007-01-02 23:36:44 +00:00
parent 7a6eabd616
commit eb0b26cd82
17 changed files with 37 additions and 37 deletions
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stepmania/src/RageSurfaceUtils.cpp
+2 -2
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@@ -876,13 +876,13 @@ RageSurface *RageSurfaceUtils::PalettizeToGrayscale( const RageSurface *src_surf
if( Ivalues == 1 )
ScaledI = 255; // if only one intensity value, always fullbright
else
ScaledI = clamp( int(roundf(I * (255.0f / (Ivalues-1)))), 0, 255 );
ScaledI = clamp( lroundf(I * (255.0f / (Ivalues-1))), 0L, 255L );
int ScaledA;
if( Avalues == 1 )
ScaledA = 255; // if only one alpha value, always opaque
else
ScaledA = clamp( int(roundf(A * (255.0f / (Avalues-1)))), 0, 255 );
ScaledA = clamp( lroundf(A * (255.0f / (Avalues-1))), 0L, 255L );
RageSurfaceColor c;
c.r = uint8_t(ScaledI);