Vibrato

4 files changed, 458 insertions, 0 deletions

diff --git a/plugins/LinuxVST/CMakeLists.txt b/plugins/LinuxVST/CMakeLists.txt
index 218e0a3..476a386 100755
--- a/plugins/LinuxVST/CMakeLists.txt
+++ b/plugins/LinuxVST/CMakeLists.txt
@@ -171,6 +171,7 @@ add_airwindows_plugin(uLawDecode)
 add_airwindows_plugin(uLawEncode)
 add_airwindows_plugin(UnBox)
 add_airwindows_plugin(VariMu)
+add_airwindows_plugin(Vibrato)
 add_airwindows_plugin(VinylDither)
 add_airwindows_plugin(VoiceOfTheStarship)
 add_airwindows_plugin(VoiceTrick)
diff --git a/plugins/LinuxVST/src/Vibrato/Vibrato.cpp b/plugins/LinuxVST/src/Vibrato/Vibrato.cpp
new file mode 100755
index 0000000..6ea3c86
--- /dev/null
+++ b/plugins/LinuxVST/src/Vibrato/Vibrato.cpp
@@ -0,0 +1,167 @@
+/* ========================================
+ *  Vibrato - Vibrato.h
+ *  Copyright (c) 2016 airwindows, All rights reserved
+ * ======================================== */
+
+#ifndef __Vibrato_H
+#include "Vibrato.h"
+#endif
+
+AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new Vibrato(audioMaster);}
+
+Vibrato::Vibrato(audioMasterCallback audioMaster) :
+    AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
+{
+	A = 0.3;
+	B = 0.0;
+	C = 0.4;
+	D = 0.0;
+	E = 1.0;
+	
+	for(int count = 0; count < 16385; count++) {pL[count] = 0.0; pR[count] = 0.0;}
+	sweep = 3.141592653589793238 / 2.0;
+	sweepB = 3.141592653589793238 / 2.0;
+	gcount = 0;
+	
+	airPrevL = 0.0;
+	airEvenL = 0.0;
+	airOddL = 0.0;
+	airFactorL = 0.0;
+	airPrevR = 0.0;
+	airEvenR = 0.0;
+	airOddR = 0.0;
+	airFactorR = 0.0;
+	
+	flip = false;
+	
+	fpd = 17;
+	//this is reset: values being initialized only once. Startup values, whatever they are.
+	
+    _canDo.insert("plugAsChannelInsert"); // plug-in can be used as a channel insert effect.
+    _canDo.insert("plugAsSend"); // plug-in can be used as a send effect.
+    _canDo.insert("x2in2out"); 
+    setNumInputs(kNumInputs);
+    setNumOutputs(kNumOutputs);
+    setUniqueID(kUniqueId);
+    canProcessReplacing();     // supports output replacing
+    canDoubleReplacing();      // supports double precision processing
+	programsAreChunks(true);
+    vst_strncpy (_programName, "Default", kVstMaxProgNameLen); // default program name
+}
+
+Vibrato::~Vibrato() {}
+VstInt32 Vibrato::getVendorVersion () {return 1000;}
+void Vibrato::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
+void Vibrato::getProgramName(char *name) {vst_strncpy (name, _programName, kVstMaxProgNameLen);}
+//airwindows likes to ignore this stuff. Make your own programs, and make a different plugin rather than
+//trying to do versioning and preventing people from using older versions. Maybe they like the old one!
+
+static float pinParameter(float data)
+{
+	if (data < 0.0f) return 0.0f;
+	if (data > 1.0f) return 1.0f;
+	return data;
+}
+
+VstInt32 Vibrato::getChunk (void** data, bool isPreset)
+{
+	float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
+	chunkData[0] = A;
+	chunkData[1] = B;
+	chunkData[2] = C;
+	chunkData[3] = D;
+	chunkData[4] = E;
+	/* Note: The way this is set up, it will break if you manage to save settings on an Intel
+	 machine and load them on a PPC Mac. However, it's fine if you stick to the machine you 
+	 started with. */
+	
+	*data = chunkData;
+	return kNumParameters * sizeof(float);
+}
+
+VstInt32 Vibrato::setChunk (void* data, VstInt32 byteSize, bool isPreset)
+{	
+	float *chunkData = (float *)data;
+	A = pinParameter(chunkData[0]);
+	B = pinParameter(chunkData[1]);
+	C = pinParameter(chunkData[2]);
+	D = pinParameter(chunkData[3]);
+	E = pinParameter(chunkData[4]);
+	/* We're ignoring byteSize as we found it to be a filthy liar */
+	
+	/* calculate any other fields you need here - you could copy in 
+	 code from setParameter() here. */
+	return 0;
+}
+
+void Vibrato::setParameter(VstInt32 index, float value) {
+    switch (index) {
+        case kParamA: A = value; break;
+        case kParamB: B = value; break;
+        case kParamC: C = value; break;
+        case kParamD: D = value; break;
+        case kParamE: E = value; break;
+        default: throw; // unknown parameter, shouldn't happen!
+    }
+}
+
+float Vibrato::getParameter(VstInt32 index) {
+    switch (index) {
+        case kParamA: return A; break;
+        case kParamB: return B; break;
+        case kParamC: return C; break;
+        case kParamD: return D; break;
+        case kParamE: return E; break;
+        default: break; // unknown parameter, shouldn't happen!
+    } return 0.0; //we only need to update the relevant name, this is simple to manage
+}
+
+void Vibrato::getParameterName(VstInt32 index, char *text) {
+    switch (index) {
+        case kParamA: vst_strncpy (text, "Speed", kVstMaxParamStrLen); break;
+		case kParamB: vst_strncpy (text, "Depth", kVstMaxParamStrLen); break;
+		case kParamC: vst_strncpy (text, "FMSpeed", kVstMaxParamStrLen); break;
+		case kParamD: vst_strncpy (text, "FMDepth", kVstMaxParamStrLen); break;
+		case kParamE: vst_strncpy (text, "Inv/Wet", kVstMaxParamStrLen); break;
+        default: break; // unknown parameter, shouldn't happen!
+    } //this is our labels for displaying in the VST host
+}
+
+void Vibrato::getParameterDisplay(VstInt32 index, char *text) {
+    switch (index) {
+        case kParamA: float2string (A, text, kVstMaxParamStrLen); break;
+        case kParamB: float2string (B, text, kVstMaxParamStrLen); break;
+        case kParamC: float2string (C, text, kVstMaxParamStrLen); break;
+        case kParamD: float2string (D, text, kVstMaxParamStrLen); break;
+        case kParamE: float2string ((E*2.0)-1.0, text, kVstMaxParamStrLen); break;
+        default: break; // unknown parameter, shouldn't happen!
+	} //this displays the values and handles 'popups' where it's discrete choices
+}
+
+void Vibrato::getParameterLabel(VstInt32 index, char *text) {
+    switch (index) {
+        case kParamA: vst_strncpy (text, "", kVstMaxParamStrLen); break;
+        case kParamB: vst_strncpy (text, "", kVstMaxParamStrLen); break;
+        case kParamC: vst_strncpy (text, "", kVstMaxParamStrLen); break;
+        case kParamD: vst_strncpy (text, "", kVstMaxParamStrLen); break;
+        case kParamE: vst_strncpy (text, "", kVstMaxParamStrLen); break;
+		default: break; // unknown parameter, shouldn't happen!
+    }
+}
+
+VstInt32 Vibrato::canDo(char *text) 
+{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
+
+bool Vibrato::getEffectName(char* name) {
+    vst_strncpy(name, "Vibrato", kVstMaxProductStrLen); return true;
+}
+
+VstPlugCategory Vibrato::getPlugCategory() {return kPlugCategEffect;}
+
+bool Vibrato::getProductString(char* text) {
+  	vst_strncpy (text, "airwindows Vibrato", kVstMaxProductStrLen); return true;
+}
+
+bool Vibrato::getVendorString(char* text) {
+  	vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
+}
diff --git a/plugins/LinuxVST/src/Vibrato/Vibrato.h b/plugins/LinuxVST/src/Vibrato/Vibrato.h
new file mode 100755
index 0000000..57ca059
--- /dev/null
+++ b/plugins/LinuxVST/src/Vibrato/Vibrato.h
@@ -0,0 +1,86 @@
+/* ========================================
+ *  Vibrato - Vibrato.h
+ *  Created 8/12/11 by SPIAdmin 
+ *  Copyright (c) 2011 __MyCompanyName__, All rights reserved
+ * ======================================== */
+
+#ifndef __Vibrato_H
+#define __Vibrato_H
+
+#ifndef __audioeffect__
+#include "audioeffectx.h"
+#endif
+
+#include <set>
+#include <string>
+#include <math.h>
+
+enum {
+	kParamA = 0,
+	kParamB = 1,
+	kParamC = 2,
+	kParamD = 3,
+	kParamE = 4,
+  kNumParameters = 5
+}; //
+
+const int kNumPrograms = 0;
+const int kNumInputs = 2;
+const int kNumOutputs = 2;
+const unsigned long kUniqueId = 'vibr';    //Change this to what the AU identity is!
+
+class Vibrato : 
+    public AudioEffectX 
+{
+public:
+    Vibrato(audioMasterCallback audioMaster);
+    ~Vibrato();
+    virtual bool getEffectName(char* name);                       // The plug-in name
+    virtual VstPlugCategory getPlugCategory();                    // The general category for the plug-in
+    virtual bool getProductString(char* text);                    // This is a unique plug-in string provided by Steinberg
+    virtual bool getVendorString(char* text);                     // Vendor info
+    virtual VstInt32 getVendorVersion();                          // Version number
+    virtual void processReplacing (float** inputs, float** outputs, VstInt32 sampleFrames);
+    virtual void processDoubleReplacing (double** inputs, double** outputs, VstInt32 sampleFrames);
+    virtual void getProgramName(char *name);                      // read the name from the host
+    virtual void setProgramName(char *name);                      // changes the name of the preset displayed in the host
+	virtual VstInt32 getChunk (void** data, bool isPreset);
+	virtual VstInt32 setChunk (void* data, VstInt32 byteSize, bool isPreset);
+    virtual float getParameter(VstInt32 index);                   // get the parameter value at the specified index
+    virtual void setParameter(VstInt32 index, float value);       // set the parameter at index to value
+    virtual void getParameterLabel(VstInt32 index, char *text);  // label for the parameter (eg dB)
+    virtual void getParameterName(VstInt32 index, char *text);    // name of the parameter
+    virtual void getParameterDisplay(VstInt32 index, char *text); // text description of the current value    
+    virtual VstInt32 canDo(char *text);
+private:
+    char _programName[kVstMaxProgNameLen + 1];
+    std::set< std::string > _canDo;
+    
+	double pL[16386]; //this is processed, not raw incoming samples
+	double pR[16386]; //this is processed, not raw incoming samples
+	double sweep;
+	double sweepB;
+	int gcount;
+	
+	double airPrevL;
+	double airEvenL;
+	double airOddL;
+	double airFactorL;
+	double airPrevR;
+	double airEvenR;
+	double airOddR;
+	double airFactorR;
+
+	bool flip;
+	uint32_t fpd;
+	//default stuff
+
+    float A;
+    float B;
+    float C;
+    float D;
+    float E; //parameters. Always 0-1, and we scale/alter them elsewhere.
+
+};
+
+#endif
diff --git a/plugins/LinuxVST/src/Vibrato/VibratoProc.cpp b/plugins/LinuxVST/src/Vibrato/VibratoProc.cpp
new file mode 100755
index 0000000..551fb2d
--- /dev/null
+++ b/plugins/LinuxVST/src/Vibrato/VibratoProc.cpp
@@ -0,0 +1,204 @@
+/* ========================================
+ *  Vibrato - Vibrato.h
+ *  Copyright (c) 2016 airwindows, All rights reserved
+ * ======================================== */
+
+#ifndef __Vibrato_H
+#include "Vibrato.h"
+#endif
+
+void Vibrato::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames) 
+{
+    float* in1  =  inputs[0];
+    float* in2  =  inputs[1];
+    float* out1 = outputs[0];
+    float* out2 = outputs[1];
+	double speed = pow(0.1+A,6);
+	double depth = (pow(B,3) / sqrt(speed))*4.0;
+	double speedB = pow(0.1+C,6);
+	double depthB = pow(D,3) / sqrt(speedB);
+	double tupi = 3.141592653589793238 * 2.0;
+	double wet = (E*2.0)-1.0; //note: inv/dry/wet
+    
+    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;
+		double drySampleL = inputSampleL;
+		double drySampleR = inputSampleR;
+		
+		airFactorL = airPrevL - inputSampleL;
+		airFactorR = airPrevR - inputSampleR;
+		
+		if (flip) {
+			airEvenL += airFactorL; airOddL -= airFactorL; airFactorL = airEvenL;
+			airEvenR += airFactorR; airOddR -= airFactorR; airFactorR = airEvenR;
+		} else {
+			airOddL += airFactorL; airEvenL -= airFactorL; airFactorL = airOddL;
+			airOddR += airFactorR; airEvenR -= airFactorR; airFactorR = airOddR;
+		}
+		
+		airOddL = (airOddL - ((airOddL - airEvenL)/256.0)) / 1.0001;
+		airOddR = (airOddR - ((airOddR - airEvenR)/256.0)) / 1.0001;
+		airEvenL = (airEvenL - ((airEvenL - airOddL)/256.0)) / 1.0001;
+		airEvenR = (airEvenR - ((airEvenR - airOddR)/256.0)) / 1.0001;
+		airPrevL = inputSampleL;
+		airPrevR = inputSampleR;
+		inputSampleL += airFactorL;
+		inputSampleR += airFactorR;
+		
+		flip = !flip;
+		//air, compensates for loss of highs in the interpolation
+		
+		if (gcount < 1 || gcount > 8192) {gcount = 8192;}
+		int count = gcount;
+		pL[count+8192] = pL[count] = inputSampleL;
+		pR[count+8192] = pR[count] = inputSampleR;
+		
+		double offset = depth + (depth * sin(sweep));
+		count += (int)floor(offset);
+		
+		inputSampleL = pL[count] * (1.0-(offset-floor(offset))); //less as value moves away from .0
+		inputSampleL += pL[count+1]; //we can assume always using this in one way or another?
+		inputSampleL += pL[count+2] * (offset-floor(offset)); //greater as value moves away from .0
+		inputSampleL -= ((pL[count]-pL[count+1])-(pL[count+1]-pL[count+2]))/50.0; //interpolation hacks 'r us
+		inputSampleL *= 0.5; // gain trim
+		
+		inputSampleR = pR[count] * (1.0-(offset-floor(offset))); //less as value moves away from .0
+		inputSampleR += pR[count+1]; //we can assume always using this in one way or another?
+		inputSampleR += pR[count+2] * (offset-floor(offset)); //greater as value moves away from .0
+		inputSampleR -= ((pR[count]-pR[count+1])-(pR[count+1]-pR[count+2]))/50.0; //interpolation hacks 'r us
+		inputSampleR *= 0.5; // gain trim
+		
+		sweep += (speed + (speedB * sin(sweepB) * depthB));
+		sweepB += speedB;
+		if (sweep > tupi){sweep -= tupi;}
+		if (sweep < 0.0){sweep += tupi;} //through zero FM
+		if (sweepB > tupi){sweepB -= tupi;}
+		gcount--;
+		//still scrolling through the samples, remember
+		
+		if (wet !=1.0) {
+			inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-fabs(wet)));
+			inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-fabs(wet)));
+		}
+		//Inv/Dry/Wet control
+		
+		//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 Vibrato::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames) 
+{
+    double* in1  =  inputs[0];
+    double* in2  =  inputs[1];
+    double* out1 = outputs[0];
+    double* out2 = outputs[1];	
+	double speed = pow(0.1+A,6);
+	double depth = (pow(B,3) / sqrt(speed))*4.0;
+	double speedB = pow(0.1+C,6);
+	double depthB = pow(D,3) / sqrt(speedB);
+	double tupi = 3.141592653589793238 * 2.0;
+	double wet = (E*2.0)-1.0; //note: inv/dry/wet
+    
+    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;
+		double drySampleL = inputSampleL;
+		double drySampleR = inputSampleR;
+		
+		airFactorL = airPrevL - inputSampleL;
+		airFactorR = airPrevR - inputSampleR;
+		
+		if (flip) {
+			airEvenL += airFactorL; airOddL -= airFactorL; airFactorL = airEvenL;
+			airEvenR += airFactorR; airOddR -= airFactorR; airFactorR = airEvenR;
+		} else {
+			airOddL += airFactorL; airEvenL -= airFactorL; airFactorL = airOddL;
+			airOddR += airFactorR; airEvenR -= airFactorR; airFactorR = airOddR;
+		}
+		
+		airOddL = (airOddL - ((airOddL - airEvenL)/256.0)) / 1.0001;
+		airOddR = (airOddR - ((airOddR - airEvenR)/256.0)) / 1.0001;
+		airEvenL = (airEvenL - ((airEvenL - airOddL)/256.0)) / 1.0001;
+		airEvenR = (airEvenR - ((airEvenR - airOddR)/256.0)) / 1.0001;
+		airPrevL = inputSampleL;
+		airPrevR = inputSampleR;
+		inputSampleL += airFactorL;
+		inputSampleR += airFactorR;
+		
+		flip = !flip;
+		//air, compensates for loss of highs in the interpolation
+		
+		if (gcount < 1 || gcount > 8192) {gcount = 8192;}
+		int count = gcount;
+		pL[count+8192] = pL[count] = inputSampleL;
+		pR[count+8192] = pR[count] = inputSampleR;
+		
+		double offset = depth + (depth * sin(sweep));
+		count += (int)floor(offset);
+		
+		inputSampleL = pL[count] * (1.0-(offset-floor(offset))); //less as value moves away from .0
+		inputSampleL += pL[count+1]; //we can assume always using this in one way or another?
+		inputSampleL += pL[count+2] * (offset-floor(offset)); //greater as value moves away from .0
+		inputSampleL -= ((pL[count]-pL[count+1])-(pL[count+1]-pL[count+2]))/50.0; //interpolation hacks 'r us
+		inputSampleL *= 0.5; // gain trim
+		
+		inputSampleR = pR[count] * (1.0-(offset-floor(offset))); //less as value moves away from .0
+		inputSampleR += pR[count+1]; //we can assume always using this in one way or another?
+		inputSampleR += pR[count+2] * (offset-floor(offset)); //greater as value moves away from .0
+		inputSampleR -= ((pR[count]-pR[count+1])-(pR[count+1]-pR[count+2]))/50.0; //interpolation hacks 'r us
+		inputSampleR *= 0.5; // gain trim
+		
+		sweep += (speed + (speedB * sin(sweepB) * depthB));
+		sweepB += speedB;
+		if (sweep > tupi){sweep -= tupi;}
+		if (sweep < 0.0){sweep += tupi;} //through zero FM
+		if (sweepB > tupi){sweepB -= tupi;}
+		gcount--;
+		//still scrolling through the samples, remember
+		
+		if (wet !=1.0) {
+			inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-fabs(wet)));
+			inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-fabs(wet)));
+		}
+		//Inv/Dry/Wet control
+		
+		//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++;
+    }
+}