BrassRider, Highpass2

1 files changed, 292 insertions, 0 deletions

diff --git a/plugins/LinuxVST/src/BrassRider/BrassRiderProc.cpp b/plugins/LinuxVST/src/BrassRider/BrassRiderProc.cpp
new file mode 100755
index 0000000..3acd783
--- /dev/null
+++ b/plugins/LinuxVST/src/BrassRider/BrassRiderProc.cpp
@@ -0,0 +1,292 @@
+/* ========================================
+ *  BrassRider - BrassRider.h
+ *  Copyright (c) 2016 airwindows, All rights reserved
+ * ======================================== */
+
+#ifndef __BrassRider_H
+#include "BrassRider.h"
+#endif
+
+void BrassRider::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) 
+{
+    float* in1  =  inputs[0];
+    float* in2  =  inputs[1];
+    float* out1 = outputs[0];
+    float* out2 = outputs[1];
+
+	double limitOut = A*16;
+	int offsetA = 13500;
+	int offsetB = 16700;
+	double wet = B;
+    
+    while (--sampleFrames >= 0)
+    {
+		long double inputSampleL = *in1;
+		long double inputSampleR = *in2;
+
+		static int noisesourceL = 0;
+		static int noisesourceR = 850010;
+		int residue;
+		double applyresidue;
+		
+		noisesourceL = noisesourceL % 1700021; noisesourceL++;
+		residue = noisesourceL * noisesourceL;
+		residue = residue % 170003; residue *= residue;
+		residue = residue % 17011; residue *= residue;
+		residue = residue % 1709; residue *= residue;
+		residue = residue % 173; residue *= residue;
+		residue = residue % 17;
+		applyresidue = residue;
+		applyresidue *= 0.00000001;
+		applyresidue *= 0.00000001;
+		inputSampleL += applyresidue;
+		if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
+			inputSampleL -= applyresidue;
+		}
+		
+		noisesourceR = noisesourceR % 1700021; noisesourceR++;
+		residue = noisesourceR * noisesourceR;
+		residue = residue % 170003; residue *= residue;
+		residue = residue % 17011; residue *= residue;
+		residue = residue % 1709; residue *= residue;
+		residue = residue % 173; residue *= residue;
+		residue = residue % 17;
+		applyresidue = residue;
+		applyresidue *= 0.00000001;
+		applyresidue *= 0.00000001;
+		inputSampleR += applyresidue;
+		if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
+			inputSampleR -= applyresidue;
+		}
+		//for live air, we always apply the dither noise. Then, if our result is 
+		//effectively digital black, we'll subtract it again. We want a 'air' hiss
+		long double drySampleL = inputSampleL;
+		long double drySampleR = inputSampleR;
+		
+		inputSampleL *= limitOut;
+		highIIRL = (highIIRL*0.5);
+		highIIRL += (inputSampleL*0.5);
+		inputSampleL -= highIIRL;
+		highIIR2L = (highIIR2L*0.5);
+		highIIR2L += (inputSampleL*0.5);
+		inputSampleL -= highIIR2L;
+		long double slewSampleL = fabs(inputSampleL - lastSampleL);
+		lastSampleL = inputSampleL;
+		slewSampleL /= fabs(inputSampleL * lastSampleL)+0.2;
+		slewIIRL = (slewIIRL*0.5);
+		slewIIRL += (slewSampleL*0.5);
+		slewSampleL = fabs(slewSampleL - slewIIRL);
+		slewIIR2L = (slewIIR2L*0.5);
+		slewIIR2L += (slewSampleL*0.5);
+		slewSampleL = fabs(slewSampleL - slewIIR2L);
+		long double bridgerectifier = slewSampleL;
+		//there's the left channel, now to feed it to overall clamp
+		
+		if (bridgerectifier > 3.1415) bridgerectifier = 0.0;
+		bridgerectifier = sin(bridgerectifier);
+		if (gcount < 0 || gcount > 40000) {gcount = 40000;}
+		d[gcount+40000] = d[gcount] = bridgerectifier;
+		control += (d[gcount] / (offsetA+1));
+		control -= (d[gcount+offsetA] / offsetA);
+		double ramp = (control*control) * 16.0;
+		e[gcount+40000] = e[gcount] = ramp;
+		clamp += (e[gcount] / (offsetB+1));
+		clamp -= (e[gcount+offsetB] / offsetB);
+		if (clamp > wet*8) clamp = wet*8;
+		gcount--;
+		
+		inputSampleR *= limitOut;
+		highIIRR = (highIIRR*0.5);
+		highIIRR += (inputSampleR*0.5);
+		inputSampleR -= highIIRR;
+		highIIR2R = (highIIR2R*0.5);
+		highIIR2R += (inputSampleR*0.5);
+		inputSampleR -= highIIR2R;
+		long double slewSampleR = fabs(inputSampleR - lastSampleR);
+		lastSampleR = inputSampleR;
+		slewSampleR /= fabs(inputSampleR * lastSampleR)+0.2;
+		slewIIRR = (slewIIRR*0.5);
+		slewIIRR += (slewSampleR*0.5);
+		slewSampleR = fabs(slewSampleR - slewIIRR);
+		slewIIR2R = (slewIIR2R*0.5);
+		slewIIR2R += (slewSampleR*0.5);
+		slewSampleR = fabs(slewSampleR - slewIIR2R);
+		bridgerectifier = slewSampleR;
+		//there's the right channel, now to feed it to overall clamp
+		
+		if (bridgerectifier > 3.1415) bridgerectifier = 0.0;
+		bridgerectifier = sin(bridgerectifier);
+		if (gcount < 0 || gcount > 40000) {gcount = 40000;}
+		d[gcount+40000] = d[gcount] = bridgerectifier;
+		control += (d[gcount] / (offsetA+1));
+		control -= (d[gcount+offsetA] / offsetA);
+		ramp = (control*control) * 16.0;
+		e[gcount+40000] = e[gcount] = ramp;
+		clamp += (e[gcount] / (offsetB+1));
+		clamp -= (e[gcount+offsetB] / offsetB);
+		if (clamp > wet*8) clamp = wet*8;
+		gcount--;
+		
+		inputSampleL = (drySampleL * (1.0-wet)) + (drySampleL * clamp * wet * 16.0);
+		inputSampleR = (drySampleR * (1.0-wet)) + (drySampleR * clamp * wet * 16.0);
+		
+		//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 BrassRider::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) 
+{
+    double* in1  =  inputs[0];
+    double* in2  =  inputs[1];
+    double* out1 = outputs[0];
+    double* out2 = outputs[1];
+	
+	double limitOut = A*16;
+	int offsetA = 13500;
+	int offsetB = 16700;
+	double wet = B;
+	
+    while (--sampleFrames >= 0)
+    {
+		long double inputSampleL = *in1;
+		long double inputSampleR = *in2;
+
+		static int noisesourceL = 0;
+		static int noisesourceR = 850010;
+		int residue;
+		double applyresidue;
+		
+		noisesourceL = noisesourceL % 1700021; noisesourceL++;
+		residue = noisesourceL * noisesourceL;
+		residue = residue % 170003; residue *= residue;
+		residue = residue % 17011; residue *= residue;
+		residue = residue % 1709; residue *= residue;
+		residue = residue % 173; residue *= residue;
+		residue = residue % 17;
+		applyresidue = residue;
+		applyresidue *= 0.00000001;
+		applyresidue *= 0.00000001;
+		inputSampleL += applyresidue;
+		if (inputSampleL<1.2e-38 && -inputSampleL<1.2e-38) {
+			inputSampleL -= applyresidue;
+		}
+		
+		noisesourceR = noisesourceR % 1700021; noisesourceR++;
+		residue = noisesourceR * noisesourceR;
+		residue = residue % 170003; residue *= residue;
+		residue = residue % 17011; residue *= residue;
+		residue = residue % 1709; residue *= residue;
+		residue = residue % 173; residue *= residue;
+		residue = residue % 17;
+		applyresidue = residue;
+		applyresidue *= 0.00000001;
+		applyresidue *= 0.00000001;
+		inputSampleR += applyresidue;
+		if (inputSampleR<1.2e-38 && -inputSampleR<1.2e-38) {
+			inputSampleR -= applyresidue;
+		}
+		//for live air, we always apply the dither noise. Then, if our result is 
+		//effectively digital black, we'll subtract it again. We want a 'air' hiss
+		long double drySampleL = inputSampleL;
+		long double drySampleR = inputSampleR;
+		
+		inputSampleL *= limitOut;
+		highIIRL = (highIIRL*0.5);
+		highIIRL += (inputSampleL*0.5);
+		inputSampleL -= highIIRL;
+		highIIR2L = (highIIR2L*0.5);
+		highIIR2L += (inputSampleL*0.5);
+		inputSampleL -= highIIR2L;
+		long double slewSampleL = fabs(inputSampleL - lastSampleL);
+		lastSampleL = inputSampleL;
+		slewSampleL /= fabs(inputSampleL * lastSampleL)+0.2;
+		slewIIRL = (slewIIRL*0.5);
+		slewIIRL += (slewSampleL*0.5);
+		slewSampleL = fabs(slewSampleL - slewIIRL);
+		slewIIR2L = (slewIIR2L*0.5);
+		slewIIR2L += (slewSampleL*0.5);
+		slewSampleL = fabs(slewSampleL - slewIIR2L);
+		long double bridgerectifier = slewSampleL;
+		//there's the left channel, now to feed it to overall clamp
+		
+		if (bridgerectifier > 3.1415) bridgerectifier = 0.0;
+		bridgerectifier = sin(bridgerectifier);
+		if (gcount < 0 || gcount > 40000) {gcount = 40000;}
+		d[gcount+40000] = d[gcount] = bridgerectifier;
+		control += (d[gcount] / (offsetA+1));
+		control -= (d[gcount+offsetA] / offsetA);
+		double ramp = (control*control) * 16.0;
+		e[gcount+40000] = e[gcount] = ramp;
+		clamp += (e[gcount] / (offsetB+1));
+		clamp -= (e[gcount+offsetB] / offsetB);
+		if (clamp > wet*8) clamp = wet*8;
+		gcount--;
+		
+		inputSampleR *= limitOut;
+		highIIRR = (highIIRR*0.5);
+		highIIRR += (inputSampleR*0.5);
+		inputSampleR -= highIIRR;
+		highIIR2R = (highIIR2R*0.5);
+		highIIR2R += (inputSampleR*0.5);
+		inputSampleR -= highIIR2R;
+		long double slewSampleR = fabs(inputSampleR - lastSampleR);
+		lastSampleR = inputSampleR;
+		slewSampleR /= fabs(inputSampleR * lastSampleR)+0.2;
+		slewIIRR = (slewIIRR*0.5);
+		slewIIRR += (slewSampleR*0.5);
+		slewSampleR = fabs(slewSampleR - slewIIRR);
+		slewIIR2R = (slewIIR2R*0.5);
+		slewIIR2R += (slewSampleR*0.5);
+		slewSampleR = fabs(slewSampleR - slewIIR2R);
+		bridgerectifier = slewSampleR;
+		//there's the right channel, now to feed it to overall clamp
+		
+		if (bridgerectifier > 3.1415) bridgerectifier = 0.0;
+		bridgerectifier = sin(bridgerectifier);
+		if (gcount < 0 || gcount > 40000) {gcount = 40000;}
+		d[gcount+40000] = d[gcount] = bridgerectifier;
+		control += (d[gcount] / (offsetA+1));
+		control -= (d[gcount+offsetA] / offsetA);
+		ramp = (control*control) * 16.0;
+		e[gcount+40000] = e[gcount] = ramp;
+		clamp += (e[gcount] / (offsetB+1));
+		clamp -= (e[gcount+offsetB] / offsetB);
+		if (clamp > wet*8) clamp = wet*8;
+		gcount--;
+		
+		inputSampleL = (drySampleL * (1.0-wet)) + (drySampleL * clamp * wet * 16.0);
+		inputSampleR = (drySampleR * (1.0-wet)) + (drySampleR * clamp * wet * 16.0);
+		
+		//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++;
+    }
+}