diff options
Diffstat (limited to 'plugins/LinuxVST/src/DigitalBlack/DigitalBlackProc.cpp')
| -rwxr-xr-x | plugins/LinuxVST/src/DigitalBlack/DigitalBlackProc.cpp | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/plugins/LinuxVST/src/DigitalBlack/DigitalBlackProc.cpp b/plugins/LinuxVST/src/DigitalBlack/DigitalBlackProc.cpp new file mode 100755 index 0000000..758a5d8 --- /dev/null +++ b/plugins/LinuxVST/src/DigitalBlack/DigitalBlackProc.cpp @@ -0,0 +1,210 @@ +/* ======================================== + * DigitalBlack - DigitalBlack.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __DigitalBlack_H +#include "DigitalBlack.h" +#endif + +void DigitalBlack::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(); + + double threshold = (pow(A,4)/3)+0.00018; + double release = 0.0064 / overallscale; + double wet = B; + + 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; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + + if (inputSampleL > 0) { + if (WasNegativeL == true) ZeroCrossL = 0; + WasNegativeL = false; + } else { + ZeroCrossL += 1; + WasNegativeL = true; + } + if (inputSampleR > 0) { + if (WasNegativeR == true) ZeroCrossR = 0; + WasNegativeR = false; + } else { + ZeroCrossR += 1; + WasNegativeR = true; + } + + if (ZeroCrossL > 6000) ZeroCrossL = 6000; + if (ZeroCrossR > 6000) ZeroCrossR = 6000; + + if (fabs(inputSampleL) > threshold) { + if (gaterollerL < ZeroCrossL) gaterollerL = ZeroCrossL; + } else { + gaterollerL -= release; + } + if (fabs(inputSampleR) > threshold) { + if (gaterollerR < ZeroCrossR) gaterollerR = ZeroCrossR; + } else { + gaterollerR -= release; + } + + if (gaterollerL < 0.0) gaterollerL = 0.0; + if (gaterollerR < 0.0) gaterollerR = 0.0; + + double gate = 1.0; + if (gaterollerL < 1.0) gate = gaterollerL; + + long double bridgerectifier = 1-cos(fabs(inputSampleL)); + + if (inputSampleL > 0) inputSampleL = (inputSampleL*gate)+(bridgerectifier*(1-gate)); + else inputSampleL = (inputSampleL*gate)-(bridgerectifier*(1-gate)); + + if ((gate == 0.0) && (fabs(inputSampleL*3) < threshold)) inputSampleL = 0.0; + + gate = 1.0; + if (gaterollerR < 1.0) gate = gaterollerR; + + bridgerectifier = 1-cos(fabs(inputSampleR)); + + if (inputSampleR > 0) inputSampleR = (inputSampleR*gate)+(bridgerectifier*(1-gate)); + else inputSampleR = (inputSampleR*gate)-(bridgerectifier*(1-gate)); + + if ((gate == 0.0) && (fabs(inputSampleR*3) < threshold)) inputSampleR = 0.0; + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet)); + inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet)); + } + + //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 DigitalBlack::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(); + + double threshold = (pow(A,4)/3)+0.00018; + double release = 0.0064 / overallscale; + double wet = B; + + 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; + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + + if (inputSampleL > 0) { + if (WasNegativeL == true) ZeroCrossL = 0; + WasNegativeL = false; + } else { + ZeroCrossL += 1; + WasNegativeL = true; + } + if (inputSampleR > 0) { + if (WasNegativeR == true) ZeroCrossR = 0; + WasNegativeR = false; + } else { + ZeroCrossR += 1; + WasNegativeR = true; + } + + if (ZeroCrossL > 6000) ZeroCrossL = 6000; + if (ZeroCrossR > 6000) ZeroCrossR = 6000; + + if (fabs(inputSampleL) > threshold) { + if (gaterollerL < ZeroCrossL) gaterollerL = ZeroCrossL; + } else { + gaterollerL -= release; + } + if (fabs(inputSampleR) > threshold) { + if (gaterollerR < ZeroCrossR) gaterollerR = ZeroCrossR; + } else { + gaterollerR -= release; + } + + if (gaterollerL < 0.0) gaterollerL = 0.0; + if (gaterollerR < 0.0) gaterollerR = 0.0; + + double gate = 1.0; + if (gaterollerL < 1.0) gate = gaterollerL; + + long double bridgerectifier = 1-cos(fabs(inputSampleL)); + + if (inputSampleL > 0) inputSampleL = (inputSampleL*gate)+(bridgerectifier*(1-gate)); + else inputSampleL = (inputSampleL*gate)-(bridgerectifier*(1-gate)); + + if ((gate == 0.0) && (fabs(inputSampleL*3) < threshold)) inputSampleL = 0.0; + + gate = 1.0; + if (gaterollerR < 1.0) gate = gaterollerR; + + bridgerectifier = 1-cos(fabs(inputSampleR)); + + if (inputSampleR > 0) inputSampleR = (inputSampleR*gate)+(bridgerectifier*(1-gate)); + else inputSampleR = (inputSampleR*gate)-(bridgerectifier*(1-gate)); + + if ((gate == 0.0) && (fabs(inputSampleR*3) < threshold)) inputSampleR = 0.0; + + if (wet !=1.0) { + inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet)); + inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet)); + } + + //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++; + } +} |