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Diffstat (limited to 'plugins/WinVST/Channel7/Channel7Proc.cpp')
| -rwxr-xr-x | plugins/WinVST/Channel7/Channel7Proc.cpp | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/plugins/WinVST/Channel7/Channel7Proc.cpp b/plugins/WinVST/Channel7/Channel7Proc.cpp new file mode 100755 index 0000000..391df73 --- /dev/null +++ b/plugins/WinVST/Channel7/Channel7Proc.cpp @@ -0,0 +1,220 @@ +/* ======================================== + * Channel7 - Channel7.h + * Copyright (c) 2016 airwindows, All rights reserved + * ======================================== */ + +#ifndef __Channel7_H +#include "Channel7.h" +#endif + +void Channel7::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 localiirAmount = iirAmount / overallscale; + double localthreshold = threshold; //we've learned not to try and adjust threshold for sample rate + double density = drive*2.0; //0-2 + double phattity = density - 1.0; + if (density > 1.0) density = 1.0; //max out at full wet for Spiral aspect + if (phattity < 0.0) phattity = 0.0; // + + 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 (flip) + { + iirSampleLA = (iirSampleLA * (1 - localiirAmount)) + (inputSampleL * localiirAmount); + inputSampleL = inputSampleL - iirSampleLA; + iirSampleRA = (iirSampleRA * (1 - localiirAmount)) + (inputSampleR * localiirAmount); + inputSampleR = inputSampleR - iirSampleRA; + } + else + { + iirSampleLB = (iirSampleLB * (1 - localiirAmount)) + (inputSampleL * localiirAmount); + inputSampleL = inputSampleL - iirSampleLB; + iirSampleRB = (iirSampleRB * (1 - localiirAmount)) + (inputSampleR * localiirAmount); + inputSampleR = inputSampleR - iirSampleRB; + } + //highpass section + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + long double phatSampleL = sin(inputSampleL * 1.57079633); + inputSampleL *= 1.2533141373155; + //clip to 1.2533141373155 to reach maximum output, or 1.57079633 for pure sine 'phat' version + + long double distSampleL = sin(inputSampleL * fabs(inputSampleL)) / ((inputSampleL == 0.0) ?1:fabs(inputSampleL)); + + inputSampleL = distSampleL; //purest form is full Spiral + if (density < 1.0) inputSampleL = (drySampleL*(1-density))+(distSampleL*density); //fade Spiral aspect + if (phattity > 0.0) inputSampleL = (inputSampleL*(1-phattity))+(phatSampleL*phattity); //apply original Density on top + + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + long double phatSampleR = sin(inputSampleR * 1.57079633); + inputSampleR *= 1.2533141373155; + //clip to 1.2533141373155 to reach maximum output, or 1.57079633 for pure sine 'phat' version + + long double distSampleR = sin(inputSampleR * fabs(inputSampleR)) / ((inputSampleR == 0.0) ?1:fabs(inputSampleR)); + + inputSampleR = distSampleR; //purest form is full Spiral + if (density < 1.0) inputSampleR = (drySampleR*(1-density))+(distSampleR*density); //fade Spiral aspect + if (phattity > 0.0) inputSampleR = (inputSampleR*(1-phattity))+(phatSampleR*phattity); //apply original Density on top + + double clamp = inputSampleL - lastSampleL; + if (clamp > localthreshold) + inputSampleL = lastSampleL + localthreshold; + if (-clamp > localthreshold) + inputSampleL = lastSampleL - localthreshold; + lastSampleL = inputSampleL; + + clamp = inputSampleR - lastSampleR; + if (clamp > localthreshold) + inputSampleR = lastSampleR + localthreshold; + if (-clamp > localthreshold) + inputSampleR = lastSampleR - localthreshold; + lastSampleR = inputSampleR; + //slew section + flip = !flip; + + if (output < 1.0) { + inputSampleL *= output; + inputSampleR *= output; + } + + //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 Channel7::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 localiirAmount = iirAmount / overallscale; + double localthreshold = threshold; //we've learned not to try and adjust threshold for sample rate + double density = drive*2.0; //0-2 + double phattity = density - 1.0; + if (density > 1.0) density = 1.0; //max out at full wet for Spiral aspect + if (phattity < 0.0) phattity = 0.0; // + + 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 (flip) + { + iirSampleLA = (iirSampleLA * (1 - localiirAmount)) + (inputSampleL * localiirAmount); + inputSampleL = inputSampleL - iirSampleLA; + iirSampleRA = (iirSampleRA * (1 - localiirAmount)) + (inputSampleR * localiirAmount); + inputSampleR = inputSampleR - iirSampleRA; + } + else + { + iirSampleLB = (iirSampleLB * (1 - localiirAmount)) + (inputSampleL * localiirAmount); + inputSampleL = inputSampleL - iirSampleLB; + iirSampleRB = (iirSampleRB * (1 - localiirAmount)) + (inputSampleR * localiirAmount); + inputSampleR = inputSampleR - iirSampleRB; + } + //highpass section + long double drySampleL = inputSampleL; + long double drySampleR = inputSampleR; + + if (inputSampleL > 1.0) inputSampleL = 1.0; + if (inputSampleL < -1.0) inputSampleL = -1.0; + long double phatSampleL = sin(inputSampleL * 1.57079633); + inputSampleL *= 1.2533141373155; + //clip to 1.2533141373155 to reach maximum output, or 1.57079633 for pure sine 'phat' version + + long double distSampleL = sin(inputSampleL * fabs(inputSampleL)) / ((inputSampleL == 0.0) ?1:fabs(inputSampleL)); + + inputSampleL = distSampleL; //purest form is full Spiral + if (density < 1.0) inputSampleL = (drySampleL*(1-density))+(distSampleL*density); //fade Spiral aspect + if (phattity > 0.0) inputSampleL = (inputSampleL*(1-phattity))+(phatSampleL*phattity); //apply original Density on top + + if (inputSampleR > 1.0) inputSampleR = 1.0; + if (inputSampleR < -1.0) inputSampleR = -1.0; + long double phatSampleR = sin(inputSampleR * 1.57079633); + inputSampleR *= 1.2533141373155; + //clip to 1.2533141373155 to reach maximum output, or 1.57079633 for pure sine 'phat' version + + long double distSampleR = sin(inputSampleR * fabs(inputSampleR)) / ((inputSampleR == 0.0) ?1:fabs(inputSampleR)); + + inputSampleR = distSampleR; //purest form is full Spiral + if (density < 1.0) inputSampleR = (drySampleR*(1-density))+(distSampleR*density); //fade Spiral aspect + if (phattity > 0.0) inputSampleR = (inputSampleR*(1-phattity))+(phatSampleR*phattity); //apply original Density on top + + double clamp = inputSampleL - lastSampleL; + if (clamp > localthreshold) + inputSampleL = lastSampleL + localthreshold; + if (-clamp > localthreshold) + inputSampleL = lastSampleL - localthreshold; + lastSampleL = inputSampleL; + + clamp = inputSampleR - lastSampleR; + if (clamp > localthreshold) + inputSampleR = lastSampleR + localthreshold; + if (-clamp > localthreshold) + inputSampleR = lastSampleR - localthreshold; + lastSampleR = inputSampleR; + //slew section + flip = !flip; + + if (output < 1.0) { + inputSampleL *= output; + inputSampleR *= output; + } + + //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++; + } +} |