diff options
Diffstat (limited to 'plugins/MacVST/PeaksOnly/source/PeaksOnlyProc.cpp')
| -rwxr-xr-x | plugins/MacVST/PeaksOnly/source/PeaksOnlyProc.cpp | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/plugins/MacVST/PeaksOnly/source/PeaksOnlyProc.cpp b/plugins/MacVST/PeaksOnly/source/PeaksOnlyProc.cpp new file mode 100755 index 0000000..89aa62f --- /dev/null +++ b/plugins/MacVST/PeaksOnly/source/PeaksOnlyProc.cpp @@ -0,0 +1,286 @@ +/* ======================================== + * PeaksOnly - PeaksOnly.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __PeaksOnly_H +#include "PeaksOnly.h" +#endif + +void PeaksOnly::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) +{ + float* in1 = inputs[0]; + float* in2 = inputs[1]; + float* out1 = outputs[0]; + float* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int am = (int)149.0 * overallscale; + int bm = (int)179.0 * overallscale; + int cm = (int)191.0 * overallscale; + int dm = (int)223.0 * overallscale; //these are 'good' primes, spacing out the allpasses + int allpasstemp = 0; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-37) inputSampleL = fpd * 1.18e-37; + if (fabs(inputSampleR)<1.18e-37) inputSampleR = fpd * 1.18e-37; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = ax - 1; if (allpasstemp < 0 || allpasstemp > am) allpasstemp = am; + inputSampleL -= aL[allpasstemp]*0.5; + inputSampleR -= aR[allpasstemp]*0.5; + aL[ax] = inputSampleL; + aR[ax] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + ax--; if (ax < 0 || ax > am) {ax = am;} + inputSampleL += (aL[ax]); + inputSampleR += (aR[ax]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = bx - 1; if (allpasstemp < 0 || allpasstemp > bm) allpasstemp = bm; + inputSampleL -= bL[allpasstemp]*0.5; + inputSampleR -= bR[allpasstemp]*0.5; + bL[bx] = inputSampleL; + bR[bx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + bx--; if (bx < 0 || bx > bm) {bx = bm;} + inputSampleL += (bL[bx]); + inputSampleR += (bR[bx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = cx - 1; if (allpasstemp < 0 || allpasstemp > cm) allpasstemp = cm; + inputSampleL -= cL[allpasstemp]*0.5; + inputSampleR -= cR[allpasstemp]*0.5; + cL[cx] = inputSampleL; + cR[cx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + cx--; if (cx < 0 || cx > cm) {cx = cm;} + inputSampleL += (cL[cx]); + inputSampleR += (cR[cx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = dx - 1; if (allpasstemp < 0 || allpasstemp > dm) allpasstemp = dm; + inputSampleL -= dL[allpasstemp]*0.5; + inputSampleR -= dR[allpasstemp]*0.5; + dL[dx] = inputSampleL; + dR[dx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + dx--; if (dx < 0 || dx > dm) {dx = dm;} + inputSampleL += (dL[dx]); + inputSampleR += (dR[dx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + inputSampleL *= 0.63679; //scale it to 0dB output at full blast + inputSampleR *= 0.63679; //scale it to 0dB output at full blast + + //begin 32 bit stereo floating point dither + int expon; frexpf((float)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + frexpf((float)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + //end 32 bit stereo floating point dither + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} + +void PeaksOnly::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) +{ + double* in1 = inputs[0]; + double* in2 = inputs[1]; + double* out1 = outputs[0]; + double* out2 = outputs[1]; + + double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= getSampleRate(); + + int am = (int)149.0 * overallscale; + int bm = (int)179.0 * overallscale; + int cm = (int)191.0 * overallscale; + int dm = (int)223.0 * overallscale; //these are 'good' primes, spacing out the allpasses + int allpasstemp = 0; + + while (--sampleFrames >= 0) + { + long double inputSampleL = *in1; + long double inputSampleR = *in2; + if (fabs(inputSampleL)<1.18e-43) inputSampleL = fpd * 1.18e-43; + if (fabs(inputSampleR)<1.18e-43) inputSampleR = fpd * 1.18e-43; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = ax - 1; if (allpasstemp < 0 || allpasstemp > am) allpasstemp = am; + inputSampleL -= aL[allpasstemp]*0.5; + inputSampleR -= aR[allpasstemp]*0.5; + aL[ax] = inputSampleL; + aR[ax] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + ax--; if (ax < 0 || ax > am) {ax = am;} + inputSampleL += (aL[ax]); + inputSampleR += (aR[ax]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = bx - 1; if (allpasstemp < 0 || allpasstemp > bm) allpasstemp = bm; + inputSampleL -= bL[allpasstemp]*0.5; + inputSampleR -= bR[allpasstemp]*0.5; + bL[bx] = inputSampleL; + bR[bx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + bx--; if (bx < 0 || bx > bm) {bx = bm;} + inputSampleL += (bL[bx]); + inputSampleR += (bR[bx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = cx - 1; if (allpasstemp < 0 || allpasstemp > cm) allpasstemp = cm; + inputSampleL -= cL[allpasstemp]*0.5; + inputSampleR -= cR[allpasstemp]*0.5; + cL[cx] = inputSampleL; + cR[cx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + cx--; if (cx < 0 || cx > cm) {cx = cm;} + inputSampleL += (cL[cx]); + inputSampleR += (cR[cx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + allpasstemp = dx - 1; if (allpasstemp < 0 || allpasstemp > dm) allpasstemp = dm; + inputSampleL -= dL[allpasstemp]*0.5; + inputSampleR -= dR[allpasstemp]*0.5; + dL[dx] = inputSampleL; + dR[dx] = inputSampleR; + inputSampleL *= 0.5; + inputSampleR *= 0.5; + dx--; if (dx < 0 || dx > dm) {dx = dm;} + inputSampleL += (dL[dx]); + inputSampleR += (dR[dx]); + //a single Midiverb-style allpass + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSampleL = asin(inputSampleL); + inputSampleR = asin(inputSampleR); + //amplitude aspect + + inputSampleL *= 0.63679; //scale it to 0dB output at full blast + inputSampleR *= 0.63679; //scale it to 0dB output at full blast + + //begin 64 bit stereo floating point dither + int expon; frexp((double)inputSampleL, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + frexp((double)inputSampleR, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSampleR += ((double(fpd)-uint32_t(0x7fffffff)) * 1.1e-44l * pow(2,expon+62)); + //end 64 bit stereo floating point dither + + *out1 = inputSampleL; + *out2 = inputSampleR; + + *in1++; + *in2++; + *out1++; + *out2++; + } +} |