diff options
Diffstat (limited to 'plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp')
| -rwxr-xr-x | plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp b/plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp index 3c76a1a..a7121e8 100755 --- a/plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp +++ b/plugins/LinuxVST/src/DitherFloat/DitherFloatProc.cpp @@ -67,16 +67,15 @@ void DitherFloat::processReplacing(float **inputs, float **outputs, VstInt32 sam long double inputSampleR = *in2 + (gain-1); - - //stereo 32 bit dither, made small and tidy. + + //begin stereo 32 bit floating point dither int expon; frexpf((float)inputSampleL, &expon); - long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62) * blend; //remove 'blend' for real use, it's for the demo; - inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + fpd ^= fpd<<13; fpd ^= fpd>>17; fpd ^= fpd<<5; + inputSampleL += (fpd*3.4e-36l*pow(2,expon+62)* blend); //remove 'blend' for real use, it's for the demo; frexpf((float)inputSampleR, &expon); - dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62) * blend; //remove 'blend' for real use, it's for the demo; - inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; - //end 32 bit dither - + fpd ^= fpd<<13; fpd ^= fpd>>17; fpd ^= fpd<<5; + inputSampleR += (fpd*3.4e-36l*pow(2,expon+62)* blend); //remove 'blend' for real use, it's for the demo; + //end stereo 32 bit floating point dither inputSampleL = (float)inputSampleL; //equivalent of 'floor' for 32 bit floating point @@ -154,15 +153,14 @@ void DitherFloat::processDoubleReplacing(double **inputs, double **outputs, VstI - //stereo 32 bit dither, made small and tidy. + //begin stereo 32 bit floating point dither int expon; frexpf((float)inputSampleL, &expon); - long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62) * blend; //remove 'blend' for real use, it's for the demo; - inputSampleL += (dither-fpNShapeL); fpNShapeL = dither; + fpd ^= fpd<<13; fpd ^= fpd>>17; fpd ^= fpd<<5; + inputSampleL += (fpd*3.4e-36l*pow(2,expon+62)* blend); //remove 'blend' for real use, it's for the demo; frexpf((float)inputSampleR, &expon); - dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62) * blend; //remove 'blend' for real use, it's for the demo; - inputSampleR += (dither-fpNShapeR); fpNShapeR = dither; - //end 32 bit dither - + fpd ^= fpd<<13; fpd ^= fpd>>17; fpd ^= fpd<<5; + inputSampleR += (fpd*3.4e-36l*pow(2,expon+62)* blend); //remove 'blend' for real use, it's for the demo; + //end stereo 32 bit floating point dither inputSampleL = (float)inputSampleL; //equivalent of 'floor' for 32 bit floating point |