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-rwxr-xr-xplugins/MacVST/PurestFade/source/PurestFade.cpp130
-rwxr-xr-xplugins/MacVST/PurestFade/source/PurestFade.h68
-rwxr-xr-xplugins/MacVST/PurestFade/source/PurestFadeProc.cpp185
3 files changed, 383 insertions, 0 deletions
diff --git a/plugins/MacVST/PurestFade/source/PurestFade.cpp b/plugins/MacVST/PurestFade/source/PurestFade.cpp
new file mode 100755
index 0000000..5c0fd45
--- /dev/null
+++ b/plugins/MacVST/PurestFade/source/PurestFade.cpp
@@ -0,0 +1,130 @@
+/* ========================================
+ * PurestFade - PurestFade.h
+ * Copyright (c) 2016 airwindows, All rights reserved
+ * ======================================== */
+
+#ifndef __PurestFade_H
+#include "PurestFade.h"
+#endif
+
+AudioEffect* createEffectInstance(audioMasterCallback audioMaster) {return new PurestFade(audioMaster);}
+
+PurestFade::PurestFade(audioMasterCallback audioMaster) :
+ AudioEffectX(audioMaster, kNumPrograms, kNumParameters)
+{
+ A = 0.5;
+ B = 1.0;
+ gainchase = -90.0;
+ settingchase = -90.0;
+ gainBchase = -90.0;
+ chasespeed = 350.0;
+ 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
+}
+
+PurestFade::~PurestFade() {}
+VstInt32 PurestFade::getVendorVersion () {return 1000;}
+void PurestFade::setProgramName(char *name) {vst_strncpy (_programName, name, kVstMaxProgNameLen);}
+void PurestFade::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 PurestFade::getChunk (void** data, bool isPreset)
+{
+ float *chunkData = (float *)calloc(kNumParameters, sizeof(float));
+ chunkData[0] = A;
+ chunkData[1] = B;
+ /* 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 PurestFade::setChunk (void* data, VstInt32 byteSize, bool isPreset)
+{
+ float *chunkData = (float *)data;
+ A = pinParameter(chunkData[0]);
+ B = pinParameter(chunkData[1]);
+ /* 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 PurestFade::setParameter(VstInt32 index, float value) {
+ switch (index) {
+ case kParamA: A = value; break;
+ case kParamB: B = value; break;
+ default: throw; // unknown parameter, shouldn't happen!
+ }
+}
+
+float PurestFade::getParameter(VstInt32 index) {
+ switch (index) {
+ case kParamA: return A; break;
+ case kParamB: return B; 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 PurestFade::getParameterName(VstInt32 index, char *text) {
+ switch (index) {
+ case kParamA: vst_strncpy (text, "Gain", kVstMaxParamStrLen); break;
+ case kParamB: vst_strncpy (text, "Fade", kVstMaxParamStrLen); break;
+ default: break; // unknown parameter, shouldn't happen!
+ } //this is our labels for displaying in the VST host
+}
+
+void PurestFade::getParameterDisplay(VstInt32 index, char *text) {
+ switch (index) {
+ case kParamA: float2string ((A*80.0)-40.0, text, kVstMaxParamStrLen); break;
+ case kParamB: float2string (B, text, kVstMaxParamStrLen); break;
+ default: break; // unknown parameter, shouldn't happen!
+ } //this displays the values and handles 'popups' where it's discrete choices
+}
+
+void PurestFade::getParameterLabel(VstInt32 index, char *text) {
+ switch (index) {
+ case kParamA: vst_strncpy (text, "dB", kVstMaxParamStrLen); break;
+ case kParamB: vst_strncpy (text, " ", kVstMaxParamStrLen); break;
+ default: break; // unknown parameter, shouldn't happen!
+ }
+}
+
+VstInt32 PurestFade::canDo(char *text)
+{ return (_canDo.find(text) == _canDo.end()) ? -1: 1; } // 1 = yes, -1 = no, 0 = don't know
+
+bool PurestFade::getEffectName(char* name) {
+ vst_strncpy(name, "PurestFade", kVstMaxProductStrLen); return true;
+}
+
+VstPlugCategory PurestFade::getPlugCategory() {return kPlugCategEffect;}
+
+bool PurestFade::getProductString(char* text) {
+ vst_strncpy (text, "airwindows PurestFade", kVstMaxProductStrLen); return true;
+}
+
+bool PurestFade::getVendorString(char* text) {
+ vst_strncpy (text, "airwindows", kVstMaxVendorStrLen); return true;
+}
diff --git a/plugins/MacVST/PurestFade/source/PurestFade.h b/plugins/MacVST/PurestFade/source/PurestFade.h
new file mode 100755
index 0000000..d107d1b
--- /dev/null
+++ b/plugins/MacVST/PurestFade/source/PurestFade.h
@@ -0,0 +1,68 @@
+/* ========================================
+ * PurestFade - PurestFade.h
+ * Created 8/12/11 by SPIAdmin
+ * Copyright (c) 2011 __MyCompanyName__, All rights reserved
+ * ======================================== */
+
+#ifndef __PurestFade_H
+#define __PurestFade_H
+
+#ifndef __audioeffect__
+#include "audioeffectx.h"
+#endif
+
+#include <set>
+#include <string>
+#include <math.h>
+
+enum {
+ kParamA = 0,
+ kParamB = 1,
+ kNumParameters = 2
+}; //
+
+const int kNumPrograms = 0;
+const int kNumInputs = 2;
+const int kNumOutputs = 2;
+const unsigned long kUniqueId = 'purf'; //Change this to what the AU identity is!
+
+class PurestFade :
+ public AudioEffectX
+{
+public:
+ PurestFade(audioMasterCallback audioMaster);
+ ~PurestFade();
+ 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;
+
+ uint32_t fpd;
+ //default stuff
+ double gainchase;
+ double settingchase;
+ double gainBchase;
+ double chasespeed;
+
+ float A;
+ float B;
+
+};
+
+#endif
diff --git a/plugins/MacVST/PurestFade/source/PurestFadeProc.cpp b/plugins/MacVST/PurestFade/source/PurestFadeProc.cpp
new file mode 100755
index 0000000..ef2f9fc
--- /dev/null
+++ b/plugins/MacVST/PurestFade/source/PurestFadeProc.cpp
@@ -0,0 +1,185 @@
+/* ========================================
+ * PurestFade - PurestFade.h
+ * Copyright (c) 2016 airwindows, All rights reserved
+ * ======================================== */
+
+#ifndef __PurestFade_H
+#include "PurestFade.h"
+#endif
+
+void PurestFade::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
+{
+ float* in1 = inputs[0];
+ float* in2 = inputs[1];
+ float* out1 = outputs[0];
+ float* out2 = outputs[1];
+
+ double inputgain = (A * 80.0)-40.0;
+ if (settingchase != inputgain) {
+ chasespeed *= 2.0;
+ settingchase = inputgain;
+ //increment the slowness for each fader movement
+ //continuous alteration makes it react smoother
+ //sudden jump to setting, not so much
+ }
+ if (chasespeed > 2500.0) chasespeed = 2500.0;
+ //bail out if it's too extreme
+ if (gainchase < -60.0) {
+ gainchase = pow(10.0,inputgain/20.0);
+ //shouldn't even be a negative number
+ //this is about starting at whatever's set, when
+ //plugin is instantiated.
+ //Otherwise it's the target, in dB.
+ }
+ long double targetgain;
+ //done with top controller
+ long double targetBgain = B;
+ if (gainBchase < 0.0) gainBchase = targetBgain;
+ //this one is not a dB value, but straight multiplication
+ //done with slow fade controller
+
+ long double fadeSpeed = targetBgain;
+ if (fadeSpeed < 0.0027) fadeSpeed = 0.0027; //minimum fade speed
+ fadeSpeed = ((getSampleRate()*0.004) / fadeSpeed);
+ //this will tend to be much slower than PurestGain, and also adapt to sample rates
+
+ long double outputgain;
+
+ 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;
+
+ targetgain = pow(10.0,settingchase/20.0);
+ //now we have the target in our temp variable
+
+ chasespeed *= 0.9999;
+ chasespeed -= 0.01;
+ if (chasespeed < 350.0) chasespeed = 350.0;
+ //we have our chase speed compensated for recent fader activity
+
+ gainchase = (((gainchase*chasespeed)+targetgain)/(chasespeed+1.0));
+ //gainchase is chasing the target, as a simple multiply gain factor
+
+ gainBchase = (((gainBchase*fadeSpeed)+targetBgain)/(fadeSpeed+1.0));
+ //gainchase is chasing the target, as a simple multiply gain factor
+
+ outputgain = gainchase * gainBchase;
+ //directly multiply the dB gain by the straight multiply gain
+
+ if (1.0 == outputgain)
+ {
+ *out1 = *in1;
+ *out2 = *in2;
+ } else {
+ inputSampleL *= outputgain;
+ inputSampleR *= outputgain;
+
+ //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 PurestFade::processDoubleReplacing(double **inputs, double **outputs, VstInt32 sampleFrames)
+{
+ double* in1 = inputs[0];
+ double* in2 = inputs[1];
+ double* out1 = outputs[0];
+ double* out2 = outputs[1];
+
+ double inputgain = (A * 80.0)-40.0;
+ if (settingchase != inputgain) {
+ chasespeed *= 2.0;
+ settingchase = inputgain;
+ //increment the slowness for each fader movement
+ //continuous alteration makes it react smoother
+ //sudden jump to setting, not so much
+ }
+ if (chasespeed > 2500.0) chasespeed = 2500.0;
+ //bail out if it's too extreme
+ if (gainchase < -60.0) {
+ gainchase = pow(10.0,inputgain/20.0);
+ //shouldn't even be a negative number
+ //this is about starting at whatever's set, when
+ //plugin is instantiated.
+ //Otherwise it's the target, in dB.
+ }
+ long double targetgain;
+ //done with top controller
+ long double targetBgain = B;
+ if (gainBchase < 0.0) gainBchase = targetBgain;
+ //this one is not a dB value, but straight multiplication
+ //done with slow fade controller
+
+ long double fadeSpeed = targetBgain;
+ if (fadeSpeed < 0.0027) fadeSpeed = 0.0027; //minimum fade speed
+ fadeSpeed = ((getSampleRate()*0.004) / fadeSpeed);
+ //this will tend to be much slower than PurestGain, and also adapt to sample rates
+
+ long double outputgain;
+
+ 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;
+
+ targetgain = pow(10.0,settingchase/20.0);
+ //now we have the target in our temp variable
+
+ chasespeed *= 0.9999;
+ chasespeed -= 0.01;
+ if (chasespeed < 350.0) chasespeed = 350.0;
+ //we have our chase speed compensated for recent fader activity
+
+ gainchase = (((gainchase*chasespeed)+targetgain)/(chasespeed+1.0));
+ //gainchase is chasing the target, as a simple multiply gain factor
+
+ gainBchase = (((gainBchase*fadeSpeed)+targetBgain)/(fadeSpeed+1.0));
+ //gainchase is chasing the target, as a simple multiply gain factor
+
+ outputgain = gainchase * gainBchase;
+ //directly multiply the dB gain by the straight multiply gain
+
+ if (1.0 == outputgain)
+ {
+ *out1 = *in1;
+ *out2 = *in2;
+ } else {
+ inputSampleL *= outputgain;
+ inputSampleR *= outputgain;
+
+ //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++;
+ }
+}
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