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Diffstat (limited to 'plugins/WinVST/DustBunny/DustBunnyProc.cpp')
| -rwxr-xr-x | plugins/WinVST/DustBunny/DustBunnyProc.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/plugins/WinVST/DustBunny/DustBunnyProc.cpp b/plugins/WinVST/DustBunny/DustBunnyProc.cpp new file mode 100755 index 0000000..27a8d66 --- /dev/null +++ b/plugins/WinVST/DustBunny/DustBunnyProc.cpp @@ -0,0 +1,262 @@ +/* ======================================== + * DustBunny - DustBunny.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __DustBunny_H +#include "DustBunny.h" +#endif + +void DustBunny::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + unsigned int bunny = (unsigned int)(pow((1.255-A),5)*1000); + bunny = (bunny*bunny); + + float inputSampleL; + float inputSampleR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + //note: this algorithm does goofy stuff with bit masks, so the 64-bit buss will use floats for processing to produce the same output. + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + LataDrySample = inputSampleL; + RataDrySample = inputSampleR; + + LataHalfDrySample = LataHalfwaySample = (inputSampleL + LataLast1Sample + ((-LataLast2Sample + LataLast3Sample) * LataUpsampleHighTweak)) / 2.0; + LataLast3Sample = LataLast2Sample; LataLast2Sample = LataLast1Sample; LataLast1Sample = inputSampleL; + //setting up oversampled special antialiasing + //begin first half- change inputSample -> LataHalfwaySample, LataDrySample -> LataHalfDrySample + + if (((*(unsigned int*)&LataHalfwaySample)&bunny)==0) LataHalfwaySample=0.0; + + //end first half + //begin antialiasing section for halfway sample + LataC = LataHalfwaySample - LataHalfDrySample; + if (LataFlip) {LataA *= LataDecay; LataB *= LataDecay; LataA += LataC; LataB -= LataC; LataC = LataA;} + else {LataB *= LataDecay; LataA *= LataDecay; LataB += LataC; LataA -= LataC; LataC = LataB;} + LataHalfDiffSample = (LataC * LataDecay); LataFlip = !LataFlip; + //end antialiasing section for halfway sample + //begin second half- inputSample and LataDrySample handled separately here + + if (((*(unsigned int*)&inputSampleL)&bunny)==0) inputSampleL=0.0; + + //end second half + //begin antialiasing section for input sample + LataC = inputSampleL - LataDrySample; + if (LataFlip) {LataA *= LataDecay; LataB *= LataDecay; LataA += LataC; LataB -= LataC; LataC = LataA;} + else {LataB *= LataDecay; LataA *= LataDecay; LataB += LataC; LataA -= LataC; LataC = LataB;} + LataDiffSample = (LataC * LataDecay); LataFlip = !LataFlip; + //end antialiasing section for input sample + inputSampleL = LataDrySample; inputSampleL += ((LataDiffSample + LataHalfDiffSample + LataPrevDiffSample) / 2.5); + LataPrevDiffSample = LataDiffSample / 2.0; + //apply processing as difference to non-oversampled raw input + + RataHalfDrySample = RataHalfwaySample = (inputSampleR + RataLast1Sample + ((-RataLast2Sample + RataLast3Sample) * RataUpsampleHighTweak)) / 2.0; + RataLast3Sample = RataLast2Sample; RataLast2Sample = RataLast1Sample; RataLast1Sample = inputSampleR; + //setting up oversampled special antialiasing + //begin first half- change inputSample -> RataHalfwaySample, RataDrySample -> RataHalfDrySample + + if (((*(unsigned int*)&RataHalfwaySample)&bunny)==0) RataHalfwaySample=0.0; + + //end first half + //begin antialiasing section for halfway sample + RataC = RataHalfwaySample - RataHalfDrySample; + if (RataFlip) {RataA *= RataDecay; RataB *= RataDecay; RataA += RataC; RataB -= RataC; RataC = RataA;} + else {RataB *= RataDecay; RataA *= RataDecay; RataB += RataC; RataA -= RataC; RataC = RataB;} + RataHalfDiffSample = (RataC * RataDecay); RataFlip = !RataFlip; + //end antialiasing section for halfway sample + //begin second half- inputSample and RataDrySample handled separately here + + if (((*(unsigned int*)&inputSampleR)&bunny)==0) inputSampleR=0.0; + + //end second half + //begin antialiasing section for input sample + RataC = inputSampleR - RataDrySample; + if (RataFlip) {RataA *= RataDecay; RataB *= RataDecay; RataA += RataC; RataB -= RataC; RataC = RataA;} + else {RataB *= RataDecay; RataA *= RataDecay; RataB += RataC; RataA -= RataC; RataC = RataB;} + RataDiffSample = (RataC * RataDecay); RataFlip = !RataFlip; + //end antialiasing section for input sample + inputSampleR = RataDrySample; inputSampleR += ((RataDiffSample + RataHalfDiffSample + RataPrevDiffSample) / 2.5); + RataPrevDiffSample = RataDiffSample / 2.0; + //apply processing as difference to non-oversampled raw input + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void DustBunny::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + unsigned int bunny = (unsigned int)(pow((1.255-A),5)*1000); + bunny = (bunny*bunny); + + long double inputSampleL; + long double inputSampleR; + + while (--sampleFrames >= 0) + { + inputSampleL = *in1; + inputSampleR = *in2; + //note: this algorithm does goofy stuff with bit masks, so the 64-bit buss will use floats for processing to produce the same output. + if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) { + static int noisesource = 0; + //this declares a variable before anything else is compiled. It won't keep assigning + //it to 0 for every sample, it's as if the declaration doesn't exist in this context, + //but it lets me add this denormalization fix in a single place rather than updating + //it in three different locations. The variable isn't thread-safe but this is only + //a random seed and we can share it with whatever. + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleL = applyresidue; + } + if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) { + static int noisesource = 0; + noisesource = noisesource % 1700021; noisesource++; + int residue = noisesource * noisesource; + residue = residue % 170003; residue *= residue; + residue = residue % 17011; residue *= residue; + residue = residue % 1709; residue *= residue; + residue = residue % 173; residue *= residue; + residue = residue % 17; + double applyresidue = residue; + applyresidue *= 0.00000001; + applyresidue *= 0.00000001; + inputSampleR = applyresidue; + //this denormalization routine produces a white noise at -300 dB which the noise + //shaping will interact with to produce a bipolar output, but the noise is actually + //all positive. That should stop any variables from going denormal, and the routine + //only kicks in if digital black is input. As a final touch, if you save to 24-bit + //the silence will return to being digital black again. + } + LataDrySample = inputSampleL; + RataDrySample = inputSampleR; + + LataHalfDrySample = LataHalfwaySample = (inputSampleL + LataLast1Sample + ((-LataLast2Sample + LataLast3Sample) * LataUpsampleHighTweak)) / 2.0; + LataLast3Sample = LataLast2Sample; LataLast2Sample = LataLast1Sample; LataLast1Sample = inputSampleL; + //setting up oversampled special antialiasing + //begin first half- change inputSample -> LataHalfwaySample, LataDrySample -> LataHalfDrySample + + if (((*(unsigned int*)&LataHalfwaySample)&bunny)==0) LataHalfwaySample=0.0; + + //end first half + //begin antialiasing section for halfway sample + LataC = LataHalfwaySample - LataHalfDrySample; + if (LataFlip) {LataA *= LataDecay; LataB *= LataDecay; LataA += LataC; LataB -= LataC; LataC = LataA;} + else {LataB *= LataDecay; LataA *= LataDecay; LataB += LataC; LataA -= LataC; LataC = LataB;} + LataHalfDiffSample = (LataC * LataDecay); LataFlip = !LataFlip; + //end antialiasing section for halfway sample + //begin second half- inputSample and LataDrySample handled separately here + + if (((*(unsigned int*)&inputSampleL)&bunny)==0) inputSampleL=0.0; + + //end second half + //begin antialiasing section for input sample + LataC = inputSampleL - LataDrySample; + if (LataFlip) {LataA *= LataDecay; LataB *= LataDecay; LataA += LataC; LataB -= LataC; LataC = LataA;} + else {LataB *= LataDecay; LataA *= LataDecay; LataB += LataC; LataA -= LataC; LataC = LataB;} + LataDiffSample = (LataC * LataDecay); LataFlip = !LataFlip; + //end antialiasing section for input sample + inputSampleL = LataDrySample; inputSampleL += ((LataDiffSample + LataHalfDiffSample + LataPrevDiffSample) / 0.734); + LataPrevDiffSample = LataDiffSample / 2.0; + //apply processing as difference to non-oversampled raw input + + RataHalfDrySample = RataHalfwaySample = (inputSampleR + RataLast1Sample + ((-RataLast2Sample + RataLast3Sample) * RataUpsampleHighTweak)) / 2.0; + RataLast3Sample = RataLast2Sample; RataLast2Sample = RataLast1Sample; RataLast1Sample = inputSampleR; + //setting up oversampled special antialiasing + //begin first half- change inputSample -> RataHalfwaySample, RataDrySample -> RataHalfDrySample + + if (((*(unsigned int*)&RataHalfwaySample)&bunny)==0) RataHalfwaySample=0.0; + + //end first half + //begin antialiasing section for halfway sample + RataC = RataHalfwaySample - RataHalfDrySample; + if (RataFlip) {RataA *= RataDecay; RataB *= RataDecay; RataA += RataC; RataB -= RataC; RataC = RataA;} + else {RataB *= RataDecay; RataA *= RataDecay; RataB += RataC; RataA -= RataC; RataC = RataB;} + RataHalfDiffSample = (RataC * RataDecay); RataFlip = !RataFlip; + //end antialiasing section for halfway sample + //begin second half- inputSample and RataDrySample handled separately here + + if (((*(unsigned int*)&inputSampleR)&bunny)==0) inputSampleR=0.0; + + //end second half + //begin antialiasing section for input sample + RataC = inputSampleR - RataDrySample; + if (RataFlip) {RataA *= RataDecay; RataB *= RataDecay; RataA += RataC; RataB -= RataC; RataC = RataA;} + else {RataB *= RataDecay; RataA *= RataDecay; RataB += RataC; RataA -= RataC; RataC = RataB;} + RataDiffSample = (RataC * RataDecay); RataFlip = !RataFlip; + //end antialiasing section for input sample + inputSampleR = RataDrySample; inputSampleR += ((RataDiffSample + RataHalfDiffSample + RataPrevDiffSample) / 0.734); + RataPrevDiffSample = RataDiffSample / 2.0; + //apply processing as difference to non-oversampled raw input + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +}
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