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simpler/faster LowPass() macro 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9359 b3059339-0415-0410-9bf9-f77b7e298cf2
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arpi 2003-02-09 02:07:11 +00:00
parent 2492b94fc2
commit 9696cef521
1 changed files with 13 additions and 1 deletions
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14
libmpcodecs/vf_denoise3d.c
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@ -68,8 +68,20 @@ void uninit(struct vf_instance_s* vf)
free(vf->priv->Line);
}
//#define LowPass(Prev, Curr, Coef) (((Prev)*Coef[Prev - Curr] + (Curr)*(65536-(Coef[Prev - Curr]))) / 65536)
//#define LowPass(Prev, Curr, Coef) (( Prev*Coef[Prev-Curr] + Curr*(65536-(Coef[Prev-Curr])) )/65536)
//#define LowPass(Prev, Curr, Coef) (( Prev*Coef[Prev-Curr] + Curr*65536 - Curr*Coef[Prev-Curr] )/65536)
//#define LowPass(Prev, Curr, Coef) (((int)(Curr)) + (( (int)Prev*Coef[Prev-Curr] - (int)Curr*Coef[Prev-Curr] )>>16) )
//#define LowPass(Prev, Curr, Coef) (Curr + (( Prev*Coef[Prev-Curr] - Curr*Coef[Prev-Curr] )>>16) )
//#define LowPass(Prev, Curr, Coef) (Curr + (( (Prev-Curr)*(Coef[Prev-Curr]) )>>16) )
#define LowPass(Prev, Curr, Coef) (((Prev)*Coef[Prev - Curr] + (Curr)*(65536-(Coef[Prev - Curr]))) / 65536)
//#define LowPass(Prev, Curr, Coef) (Curr + (((Prev - Curr)*Coef[Prev - Curr]) / 65536))
#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned int)(Prev - Curr))*Coef[Prev - Curr]) / 65536))
//#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned int)(Prev - Curr))*Coef[((unsigned int)(Prev - Curr))]) / 65536))
//#define LowPass(Prev, Curr, Coef) (Curr + ((((unsigned char)(Prev - Curr))*Coef[Prev - Curr]) / 65536))
//#define LowPass(Prev, Curr, Coef) (Curr + (( ((((int)(Prev))-((int)(Curr)))) *Coef[Prev - Curr]) / 65536))
//#define LowPass(Prev, Curr, Coef) (Curr + (((unsigned int)((Prev - Curr)*Coef[Prev - Curr])) / 65536))
//#define LowPass(Prev, Curr, Coef) (Curr + (((Prev - Curr)*Coef[Prev - Curr]) >> 16))
static void deNoise(unsigned char *Frame, // mpi->planes[x]
unsigned char *FramePrev, // pmpi->planes[x]