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Remove some Float Divide to use Integer and Shift in C Portable helper function on LayerMixer

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This commit is contained in:
ptitSeb 2016-04-09 23:57:58 +02:00
parent 98ebac941a
commit cb039e972f
1 changed files with 9 additions and 9 deletions
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18
Sources/Engine/Light/LayerMixer.cpp
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@ -122,7 +122,7 @@ public:
// add the intensity to the pixel // add the intensity to the pixel
inline void AddToCluster( UBYTE *pub); inline void AddToCluster( UBYTE *pub);
inline void AddAmbientToCluster( UBYTE *pub); inline void AddAmbientToCluster( UBYTE *pub);
inline void AddToCluster( UBYTE *pub, FLOAT fIntensity); inline void AddToCluster( UBYTE *pub, SLONG slIntensity);
// additional functions // additional functions
__forceinline void CopyShadowLayer(void); __forceinline void CopyShadowLayer(void);
@ -160,11 +160,11 @@ inline void CLayerMixer::AddAmbientToCluster( UBYTE *pub)
IncrementByteWithClip(pub[1], ((UBYTE*)&lm_colAmbient)[2]); IncrementByteWithClip(pub[1], ((UBYTE*)&lm_colAmbient)[2]);
IncrementByteWithClip(pub[2], ((UBYTE*)&lm_colAmbient)[1]); IncrementByteWithClip(pub[2], ((UBYTE*)&lm_colAmbient)[1]);
} }
inline void CLayerMixer::AddToCluster( UBYTE *pub, FLOAT fIntensity) inline void CLayerMixer::AddToCluster( UBYTE *pub, SLONG slIntensity)
{ {
IncrementByteWithClip(pub[0], (long) (((UBYTE*)&lm_colLight)[3] *fIntensity)); IncrementByteWithClip(pub[0], (long) (((UBYTE*)&lm_colLight)[3] *slIntensity)>>16);
IncrementByteWithClip(pub[1], (long) (((UBYTE*)&lm_colLight)[2] *fIntensity)); IncrementByteWithClip(pub[1], (long) (((UBYTE*)&lm_colLight)[2] *slIntensity)>>16);
IncrementByteWithClip(pub[2], (long) (((UBYTE*)&lm_colLight)[1] *fIntensity)); IncrementByteWithClip(pub[2], (long) (((UBYTE*)&lm_colLight)[1] *slIntensity)>>16);
} }
@ -465,7 +465,7 @@ skipPixel:
slL = aubSqrt[slL]; slL = aubSqrt[slL];
if( slL>_slHotSpot) slIntensity = ((255-slL)*_slLightStep); if( slL>_slHotSpot) slIntensity = ((255-slL)*_slLightStep);
// add the intensity to the pixel // add the intensity to the pixel
AddToCluster( pubLayer, (slIntensity>>8)/255.0f); AddToCluster( pubLayer, slIntensity);
} }
// go to the next pixel // go to the next pixel
pubLayer+=4; pubLayer+=4;
@ -683,7 +683,7 @@ skipPixel:
slL = aubSqrt[slL]; slL = aubSqrt[slL];
if( slL>_slHotSpot) slIntensity = ((255-slL)*_slLightStep); if( slL>_slHotSpot) slIntensity = ((255-slL)*_slLightStep);
// add the intensity to the pixel // add the intensity to the pixel
AddToCluster( pubLayer, (slIntensity>>8)/255.0f); AddToCluster( pubLayer, slIntensity);
} }
// go to the next pixel // go to the next pixel
pubLayer+=4; pubLayer+=4;
@ -901,7 +901,7 @@ skipPixel:
if( sl1oL<256) slIntensity = 0; if( sl1oL<256) slIntensity = 0;
else if( sl1oL<slMax1oL) slIntensity = ((sl1oL-256)*_slLightStep)/*>>16*/; else if( sl1oL<slMax1oL) slIntensity = ((sl1oL-256)*_slLightStep)/*>>16*/;
// add the intensity to the pixel // add the intensity to the pixel
AddToCluster( pubLayer, (slIntensity>>8)/255.0f); AddToCluster( pubLayer, slIntensity);
} }
// advance to next pixel // advance to next pixel
pubLayer+=4; pubLayer+=4;
@ -1122,7 +1122,7 @@ skipPixel:
if( sl1oL<256) slIntensity = 0; if( sl1oL<256) slIntensity = 0;
else if( sl1oL<slMax1oL) slIntensity = ((sl1oL-256)*_slLightStep)/*>>16*/; else if( sl1oL<slMax1oL) slIntensity = ((sl1oL-256)*_slLightStep)/*>>16*/;
// add the intensity to the pixel // add the intensity to the pixel
AddToCluster( pubLayer, (slIntensity>>8)/255.0f); AddToCluster( pubLayer, slIntensity);
} }
// advance to next pixel // advance to next pixel
pubLayer+=4; pubLayer+=4;