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Switch back to linear interpolation...

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Vesa
2014-03-25 10:45:50 +02:00
parent b118c23123
commit 1168dc0558
1 changed files with 7 additions and 7 deletions
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14
plugins/watsyn/Watsyn.h
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@@ -99,23 +99,23 @@ public:
private:
// linear interpolation
/* inline sample_t interpolate( sample_t s1, sample_t s2, float x )
inline sample_t interpolate( sample_t s1, sample_t s2, float x )
{
return s1 + ( s2 - s1 ) * x;
}*/
}
/*
// quick and dirty approximation of cubic interpolation
inline sample_t interpolate( sample_t s1, sample_t s2, float x )
{
const float x2 = powf( x, 2 );
const float x3 = powf( x, 3 );
//const float m = s2 - s1;
const float m = s2 - s1;
return ( ( x3 * 2.0 - x2 * 3.0 + 1.0 ) * s1 ) +
( ( x3 * -2.0 + x2 * 3.0 ) * s2 );// +
//( ( x + x3 * 2.0 - x2 * 3.0 ) * m );
( ( x3 * -2.0 + x2 * 3.0 ) * s2 ); +
( ( x + x3 * 2.0 - x2 * 3.0 ) * m );
}
*/
// more accurate cubic interpolation...
// consumes more cpu than ^ but doesn't bring a marked increase in sound quality IMO
/* inline sample_t interpolate( sample_t s0, sample_t s1, sample_t s2, sample_t s3, float x )