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https://codeberg.org/armin/wavetable.git
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Add more fx
This commit is contained in:
Roland Rabien
parent
8a793ba5b4
commit
b20f153c84
15 changed files with 5211 additions and 22 deletions
366
plugin/Source/FX/DeRez2Proc.cpp
Executable file
366
plugin/Source/FX/DeRez2Proc.cpp
Executable file
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/* ========================================
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* DeRez2 - DeRez2.h
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* Copyright (c) 2016 airwindows, Airwindows uses the MIT license
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* ======================================== */
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#ifndef __DeRez2_H
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#include "DeRez2.h"
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#endif
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JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE ("-Wfloat-conversion", "-Wimplicit-float-conversion", "-Wunused-parameter", "-Wunused-value")
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void DeRez2::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
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{
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float* in1 = inputs[0];
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float* in2 = inputs[1];
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float* out1 = outputs[0];
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float* out2 = outputs[1];
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double targetA = pow(A,3)+0.0005;
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if (targetA > 1.0) targetA = 1.0;
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double soften = (1.0 + targetA)/2;
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double targetB = pow(1.0-B,3) / 3;
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double hard = C;
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double wet = D;
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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targetA /= overallscale;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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incrementA = ((incrementA*999.0)+targetA)/1000.0;
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incrementB = ((incrementB*999.0)+targetB)/1000.0;
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//incrementA is the frequency derez
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//incrementB is the bit depth derez
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position += incrementA;
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double outputSampleL = heldSampleL;
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double outputSampleR = heldSampleR;
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if (position > 1.0)
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{
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position -= 1.0;
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heldSampleL = (lastSampleL * position) + (inputSampleL * (1.0-position));
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outputSampleL = (outputSampleL * (1.0-soften)) + (heldSampleL * soften);
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//softens the edge of the derez
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heldSampleR = (lastSampleR * position) + (inputSampleR * (1.0-position));
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outputSampleR = (outputSampleR * (1.0-soften)) + (heldSampleR * soften);
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//softens the edge of the derez
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}
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inputSampleL = outputSampleL;
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inputSampleR = outputSampleR;
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double tempL = inputSampleL;
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double tempR = inputSampleR;
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if (inputSampleL != lastOutputSampleL) {
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tempL = inputSampleL;
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inputSampleL = (inputSampleL * hard) + (lastDrySampleL * (1.0-hard));
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//transitions get an intermediate dry sample
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lastOutputSampleL = tempL; //only one intermediate sample
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} else {
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lastOutputSampleL = inputSampleL;
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}
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if (inputSampleR != lastOutputSampleR) {
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tempR = inputSampleR;
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inputSampleR = (inputSampleR * hard) + (lastDrySampleR * (1.0-hard));
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//transitions get an intermediate dry sample
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lastOutputSampleR = tempR; //only one intermediate sample
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} else {
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lastOutputSampleR = inputSampleR;
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}
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lastDrySampleL = drySampleL;
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lastDrySampleR = drySampleR;
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//freq section of soft/hard interpolates dry samples
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (inputSampleL > 1.0) inputSampleL = 1.0;
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if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0;
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if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleL > 0) inputSampleL = log(1.0+(255*fabs(inputSampleL))) / log(256);
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if (inputSampleL < 0) inputSampleL = -log(1.0+(255*fabs(inputSampleL))) / log(256);
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if (inputSampleR > 0) inputSampleR = log(1.0+(255*fabs(inputSampleR))) / log(256);
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if (inputSampleR < 0) inputSampleR = -log(1.0+(255*fabs(inputSampleR))) / log(256);
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inputSampleL = (tempL * hard) + (inputSampleL * (1.0-hard));
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inputSampleR = (tempR * hard) + (inputSampleR * (1.0-hard)); //uLaw encode as part of soft/hard
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (incrementB > 0.0005)
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{
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if (inputSampleL > 0)
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{
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tempL = inputSampleL;
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while (tempL > 0) {tempL -= incrementB;}
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inputSampleL -= tempL;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleR > 0)
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{
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tempR = inputSampleR;
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while (tempR > 0) {tempR -= incrementB;}
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inputSampleR -= tempR;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleL < 0)
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{
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tempL = inputSampleL;
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while (tempL < 0) {tempL += incrementB;}
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inputSampleL -= tempL;
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//it's above 0 so subtracting subtracts the remainder
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}
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if (inputSampleR < 0)
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{
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tempR = inputSampleR;
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while (tempR < 0) {tempR += incrementB;}
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inputSampleR -= tempR;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleL *= (1.0 - incrementB);
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inputSampleR *= (1.0 - incrementB);
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}
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (inputSampleL > 1.0) inputSampleL = 1.0;
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if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0;
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if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleL > 0) inputSampleL = (pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleL < 0) inputSampleL = -(pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleR > 0) inputSampleR = (pow(256,fabs(inputSampleR))-1.0) / 255;
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if (inputSampleR < 0) inputSampleR = -(pow(256,fabs(inputSampleR))-1.0) / 255;
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inputSampleL = (tempL * hard) + (inputSampleL * (1.0-hard));
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inputSampleR = (tempR * hard) + (inputSampleR * (1.0-hard)); //uLaw decode as part of soft/hard
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if (wet !=1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//Dry/Wet control, defaults to the last slider
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lastSampleL = drySampleL;
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lastSampleR = drySampleR;
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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}
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void DeRez2::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
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{
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double* in1 = inputs[0];
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double* in2 = inputs[1];
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double* out1 = outputs[0];
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double* out2 = outputs[1];
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double targetA = pow(A,3)+0.0005;
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if (targetA > 1.0) targetA = 1.0;
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double soften = (1.0 + targetA)/2;
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double targetB = pow(1.0-B,3) / 3;
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double hard = C;
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double wet = D;
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= getSampleRate();
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targetA /= overallscale;
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while (--sampleFrames >= 0)
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{
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double inputSampleL = *in1;
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double inputSampleR = *in2;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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incrementA = ((incrementA*999.0)+targetA)/1000.0;
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incrementB = ((incrementB*999.0)+targetB)/1000.0;
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//incrementA is the frequency derez
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//incrementB is the bit depth derez
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position += incrementA;
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double outputSampleL = heldSampleL;
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double outputSampleR = heldSampleR;
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if (position > 1.0)
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{
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position -= 1.0;
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heldSampleL = (lastSampleL * position) + (inputSampleL * (1.0-position));
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outputSampleL = (outputSampleL * (1.0-soften)) + (heldSampleL * soften);
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//softens the edge of the derez
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heldSampleR = (lastSampleR * position) + (inputSampleR * (1.0-position));
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outputSampleR = (outputSampleR * (1.0-soften)) + (heldSampleR * soften);
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//softens the edge of the derez
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}
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inputSampleL = outputSampleL;
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inputSampleR = outputSampleR;
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double tempL = inputSampleL;
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double tempR = inputSampleR;
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if (inputSampleL != lastOutputSampleL) {
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tempL = inputSampleL;
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inputSampleL = (inputSampleL * hard) + (lastDrySampleL * (1.0-hard));
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//transitions get an intermediate dry sample
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lastOutputSampleL = tempL; //only one intermediate sample
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} else {
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lastOutputSampleL = inputSampleL;
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}
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if (inputSampleR != lastOutputSampleR) {
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tempR = inputSampleR;
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inputSampleR = (inputSampleR * hard) + (lastDrySampleR * (1.0-hard));
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//transitions get an intermediate dry sample
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lastOutputSampleR = tempR; //only one intermediate sample
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} else {
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lastOutputSampleR = inputSampleR;
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}
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lastDrySampleL = drySampleL;
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lastDrySampleR = drySampleR;
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//freq section of soft/hard interpolates dry samples
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (inputSampleL > 1.0) inputSampleL = 1.0;
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if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0;
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if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleL > 0) inputSampleL = log(1.0+(255*fabs(inputSampleL))) / log(256);
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if (inputSampleL < 0) inputSampleL = -log(1.0+(255*fabs(inputSampleL))) / log(256);
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if (inputSampleR > 0) inputSampleR = log(1.0+(255*fabs(inputSampleR))) / log(256);
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if (inputSampleR < 0) inputSampleR = -log(1.0+(255*fabs(inputSampleR))) / log(256);
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inputSampleL = (tempL * hard) + (inputSampleL * (1.0-hard));
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inputSampleR = (tempR * hard) + (inputSampleR * (1.0-hard)); //uLaw encode as part of soft/hard
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (incrementB > 0.0005)
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{
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if (inputSampleL > 0)
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{
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tempL = inputSampleL;
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while (tempL > 0) {tempL -= incrementB;}
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inputSampleL -= tempL;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleR > 0)
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{
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tempR = inputSampleR;
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while (tempR > 0) {tempR -= incrementB;}
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inputSampleR -= tempR;
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//it's below 0 so subtracting adds the remainder
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}
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if (inputSampleL < 0)
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{
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tempL = inputSampleL;
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while (tempL < 0) {tempL += incrementB;}
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inputSampleL -= tempL;
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//it's above 0 so subtracting subtracts the remainder
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}
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if (inputSampleR < 0)
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{
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tempR = inputSampleR;
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while (tempR < 0) {tempR += incrementB;}
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inputSampleR -= tempR;
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//it's above 0 so subtracting subtracts the remainder
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}
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inputSampleL *= (1.0 - incrementB);
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inputSampleR *= (1.0 - incrementB);
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}
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tempL = inputSampleL;
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tempR = inputSampleR;
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if (inputSampleL > 1.0) inputSampleL = 1.0;
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if (inputSampleL < -1.0) inputSampleL = -1.0;
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if (inputSampleR > 1.0) inputSampleR = 1.0;
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if (inputSampleR < -1.0) inputSampleR = -1.0;
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if (inputSampleL > 0) inputSampleL = (pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleL < 0) inputSampleL = -(pow(256,fabs(inputSampleL))-1.0) / 255;
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if (inputSampleR > 0) inputSampleR = (pow(256,fabs(inputSampleR))-1.0) / 255;
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if (inputSampleR < 0) inputSampleR = -(pow(256,fabs(inputSampleR))-1.0) / 255;
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inputSampleL = (tempL * hard) + (inputSampleL * (1.0-hard));
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inputSampleR = (tempR * hard) + (inputSampleR * (1.0-hard)); //uLaw decode as part of soft/hard
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if (wet !=1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//Dry/Wet control, defaults to the last slider
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lastSampleL = drySampleL;
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lastSampleR = drySampleR;
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//begin 64 bit stereo floating point dither
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//int expon; frexp((double)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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//inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//frexp((double)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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//inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62));
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//end 64 bit stereo floating point dither
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*out1 = inputSampleL;
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*out2 = inputSampleR;
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*in1++;
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*in2++;
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*out1++;
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*out2++;
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}
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}
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