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svn path=/trunk/externals/bsaylor/; revision=11917

1 files changed, 7 insertions, 3 deletions

diff --git a/svf~.c b/svf~.c
index 43930f0..8df5a7a 100644
--- a/svf~.c
+++ b/svf~.c
@@ -18,7 +18,7 @@
 #define F_R 3

 

 // Denormalise floats, only actually needed for PIII and very recent PowerPC

-//#define FLUSH_TO_ZERO(fv) (((*(unsigned int*)&(fv))&0x7f800000)==0)?0.0f:(fv)

+#define FLUSH_TO_ZERO(fv) (((*(unsigned int*)&(fv))&0x7f800000)==0)?0.0f:(fv)

 

 /* pd's samplerate */

 float fs;

@@ -56,8 +56,12 @@ static inline float run_svf(t_svf *sv, float in) {
         in = sv->qnrm * in ;

         for (i=0; i < F_R; i++) {

                 // only needed for pentium chips

-	  in  = ((int)in & 0x7f800000)==0?0.0f:in;

-                sv->l = ((int)sv->l & 0x7f800000)==0?0.0f:sv->l;

+	  // OLD VERSION

+	   in = FLUSH_TO_ZERO(in);

+	   sv->l = FLUSH_TO_ZERO(sv->l);

+	  // new versions, thanks to Damon Chaplin, inserted by Ed Kelly, not yet working!!!

+	  //in  = ((int)in & 0x7f800000)==0?0.0f:in;

+	   //sv->l = ((int)sv->l & 0x7f800000)==0?0.0f:sv->l;

                 // very slight waveshape for extra stability

                 sv->b = sv->b - sv->b * sv->b * sv->b * 0.001f;