diff options
Diffstat (limited to 'plugins/MacVST/Density/source/DensityProc.cpp')
| -rwxr-xr-x | plugins/MacVST/Density/source/DensityProc.cpp | 64 |
1 files changed, 20 insertions, 44 deletions
diff --git a/plugins/MacVST/Density/source/DensityProc.cpp b/plugins/MacVST/Density/source/DensityProc.cpp index 1e968c7..f229a9d 100755 --- a/plugins/MacVST/Density/source/DensityProc.cpp +++ b/plugins/MacVST/Density/source/DensityProc.cpp @@ -26,9 +26,6 @@ void Density::processReplacing(float **inputs, float **outputs, VstInt32 sampleF double out = fabs(density); density = density * fabs(density); double count; - float fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -95,6 +92,7 @@ void Density::processReplacing(float **inputs, float **outputs, VstInt32 sampleF inputSampleR -= iirSampleBR; } //highpass section + fpFlip = !fpFlip; count = density; while (count > 1.0) @@ -150,25 +148,14 @@ void Density::processReplacing(float **inputs, float **outputs, VstInt32 sampleF //nice little output stage template: if we have another scale of floating point //number, we really don't want to meaninglessly multiply that by 1.0. - //noise shaping to 32-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //end noise shaping on 32 bit output + //stereo 32 bit dither, made small and tidy. + int expon; frexpf((float)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexpf((float)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 32 bit dither *out1 = inputSampleL; *out2 = inputSampleR; @@ -199,9 +186,6 @@ void Density::processDoubleReplacing(double **inputs, double **outputs, VstInt32 double out = fabs(density); density = density * fabs(density); double count; - double fpTemp; - long double fpOld = 0.618033988749894848204586; //golden ratio! - long double fpNew = 1.0 - fpOld; long double inputSampleL; long double inputSampleR; @@ -268,6 +252,7 @@ void Density::processDoubleReplacing(double **inputs, double **outputs, VstInt32 inputSampleR -= iirSampleBR; } //highpass section + fpFlip = !fpFlip; count = density; while (count > 1.0) @@ -323,25 +308,16 @@ void Density::processDoubleReplacing(double **inputs, double **outputs, VstInt32 //nice little output stage template: if we have another scale of floating point //number, we really don't want to meaninglessly multiply that by 1.0. - //noise shaping to 64-bit floating point - if (fpFlip) { - fpTemp = inputSampleL; - fpNShapeLA = (fpNShapeLA*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLA; - fpTemp = inputSampleR; - fpNShapeRA = (fpNShapeRA*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRA; - } - else { - fpTemp = inputSampleL; - fpNShapeLB = (fpNShapeLB*fpOld)+((inputSampleL-fpTemp)*fpNew); - inputSampleL += fpNShapeLB; - fpTemp = inputSampleR; - fpNShapeRB = (fpNShapeRB*fpOld)+((inputSampleR-fpTemp)*fpNew); - inputSampleR += fpNShapeRB; - } - fpFlip = !fpFlip; - //end noise shaping on 64 bit output + //stereo 64 bit dither, made small and tidy. + int expon; frexp((double)inputSampleL, &expon); + long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + frexp((double)inputSampleR, &expon); + dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62); + dither /= 536870912.0; //needs this to scale to 64 bit zone + inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; + //end 64 bit dither *out1 = inputSampleL; *out2 = inputSampleR; |