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-rw-r--r--src/mdaSubSynth.cpp380
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diff --git a/src/mdaSubSynth.cpp b/src/mdaSubSynth.cpp
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+/*
+ Copyright 2008-2011 David Robillard <http://drobilla.net>
+ Copyright 1999-2000 Paul Kellett (Maxim Digital Audio)
+
+ This is free software: you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ This software is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this software. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "mdaSubSynth.h"
+
+#include <math.h>
+#include <stdio.h>
+
+AudioEffect *createEffectInstance(audioMasterCallback audioMaster)
+{
+ return new mdaSubSynth(audioMaster);
+}
+
+mdaSubSynth::mdaSubSynth(audioMasterCallback audioMaster)
+ : AudioEffectX(audioMaster, 1, 6) // programs, parameters
+{
+ //inits here!
+ fParam1 = (float)0.0; //type
+ fParam2 = (float)0.3; //level
+ fParam3 = (float)0.6; //tune
+ fParam4 = (float)1.0; //dry mix
+ fParam5 = (float)0.6; //thresh
+ fParam6 = (float)0.65; //release
+
+ setNumInputs(2);
+ setNumOutputs(2);
+ setUniqueID("mdaSubSynth"); // identify here
+ DECLARE_LVZ_DEPRECATED(canMono) ();
+ canProcessReplacing();
+ strcpy(programName, "Sub Bass Synthesizer");
+
+ resume();
+}
+
+mdaSubSynth::~mdaSubSynth()
+{
+
+}
+
+bool mdaSubSynth::getProductString(char* text) { strcpy(text, "MDA SubSynth"); return true; }
+bool mdaSubSynth::getVendorString(char* text) { strcpy(text, "mda"); return true; }
+bool mdaSubSynth::getEffectName(char* name) { strcpy(name, "SubSynth"); return true; }
+
+void mdaSubSynth::setProgramName(char *name)
+{
+ strcpy(programName, name);
+}
+
+void mdaSubSynth::getProgramName(char *name)
+{
+ strcpy(name, programName);
+}
+
+bool mdaSubSynth::getProgramNameIndexed (int32_t category, int32_t index, char* name)
+{
+ if (index == 0)
+ {
+ strcpy(name, programName);
+ return true;
+ }
+ return false;
+}
+
+void mdaSubSynth::setProgram(int32_t program)
+{
+}
+
+void mdaSubSynth::setParameter(int32_t index, float value)
+{
+ switch(index)
+ {
+ case 0: fParam1 = value; break;
+ case 1: fParam2 = value; break;
+ case 2: fParam3 = value; break;
+ case 3: fParam4 = value; break;
+ case 4: fParam5 = value; break;
+ case 5: fParam6 = value; break;
+ }
+
+ dvd = 1.0;
+ phs = 1.0;
+ osc = 0.0; //oscillator phase
+ typ = int(3.5 * fParam1);
+ filti = (typ == 3)? 0.018f : (float)pow(10.0,-3.0 + (2.0 * fParam3));
+ filto = 1.0f - filti;
+ wet = fParam2;
+ dry = fParam4;
+ thr = (float)pow(10.0,-3.0 + (3.0 * fParam5));
+ rls = (float)(1.0 - pow(10.0, -2.0 - (3.0 * fParam6)));
+ dphi = (float)(0.456159 * pow(10.0,-2.5 + (1.5 * fParam3)));
+}
+
+float mdaSubSynth::getParameter(int32_t index)
+{
+ float v=0;
+
+ switch(index)
+ {
+ case 0: v = fParam1; break;
+ case 1: v = fParam2; break;
+ case 2: v = fParam3; break;
+ case 3: v = fParam4; break;
+ case 4: v = fParam5; break;
+ case 5: v = fParam6; break;
+ }
+ return v;
+}
+
+void mdaSubSynth::getParameterName(int32_t index, char *label)
+{
+ switch(index)
+ {
+ case 0: strcpy(label, "Type"); break;
+ case 1: strcpy(label, "Level"); break;
+ case 2: strcpy(label, "Tune"); break;
+ case 3: strcpy(label, "Dry Mix"); break;
+ case 4: strcpy(label, "Thresh"); break;
+ case 5: strcpy(label, "Release"); break;
+ }
+}
+
+void mdaSubSynth::getParameterDisplay(int32_t index, char *text)
+{
+ char string[16];
+
+ switch(index)
+ {
+ case 1: sprintf(string, "%d", (int32_t)(100.0f * wet)); break;
+ case 2: sprintf(string, "%d", (int32_t)(0.0726 * getSampleRate() * pow(10.0,-2.5 + (1.5 * fParam3)))); break;
+ case 3: sprintf(string, "%d", (int32_t)(100. * dry)); break;
+ case 4: sprintf(string, "%.1f", 60.0f * fParam5 - 60.0f); break;
+ case 5: sprintf(string, "%d", (int32_t)(-301.03 / (getSampleRate() * log10(rls)))); break;
+
+ case 0: switch(typ)
+ {
+ case 0: strcpy(string, "Distort"); break;
+ case 1: strcpy(string, "Divide"); break;
+ case 2: strcpy(string, "Invert"); break;
+ case 3: strcpy(string, "Key Osc."); break;
+ }
+ }
+
+ string[8] = 0;
+ strcpy(text, (char *)string);
+}
+
+void mdaSubSynth::getParameterLabel(int32_t index, char *label)
+{
+ switch(index)
+ {
+ case 0: strcpy(label, " " ); break;
+ case 1: strcpy(label, "% "); break;
+ case 2: strcpy(label, "Hz"); break;
+ case 3: strcpy(label, "%" ); break;
+ case 4: strcpy(label, "dB"); break;
+ case 5: strcpy(label, "ms"); break;
+ }
+}
+
+
+void mdaSubSynth::resume()
+{
+ phi = env = filt1 = filt2 = filt3 = filt4 = filti = filto = 0.0f;
+
+ setParameter(0, getParameter(0));
+}
+
+//--------------------------------------------------------------------------------
+// process
+
+void mdaSubSynth::process(float **inputs, float **outputs, int32_t sampleFrames)
+{
+ float *in1 = inputs[0];
+ float *in2 = inputs[1];
+ float *out1 = outputs[0];
+ float *out2 = outputs[1];
+ float a, b, c, d;
+ float we, dr, fi, fo, f1, f2, f3, f4, sub, rl, th, dv, ph, phii, dph, os, en;
+
+ dph = dphi;
+ rl = rls;
+ phii = phi;
+ en = env;
+ os = osc;
+ th = thr;
+ dv = dvd;
+ ph = phs;
+ we = wet;
+ dr = dry;
+ f1 = filt1;
+ f2 = filt2;
+ f3 = filt3;
+ f4 = filt4;
+ fi = filti;
+ fo = filto;
+
+ --in1;
+ --in2;
+ --out1;
+ --out2;
+ while(--sampleFrames >= 0)
+ {
+ a = *++in1;
+ b = *++in2;
+
+ c = out1[1];
+ d = out2[1]; //process from here...
+
+ f1 = (fo * f1) + (fi * (a + b));
+ f2 = (fo * f2) + (fi * f1);
+
+ sub = f2;
+ if (sub > th)
+ {
+ sub = 1.0;
+ }
+ else
+ {
+ if(sub < -th)
+ {
+ sub = -1.0;
+ }
+ else
+ {
+ sub = 0.0;
+ }
+ }
+
+ if((sub * dv) < 0) //octave divider
+ {
+ dv = -dv; if(dv < 0.) ph = -ph;
+ }
+
+ if(typ == 1) //divide
+ {
+ sub = ph * sub;
+ }
+ if(typ == 2) //invert
+ {
+ sub = (float)(ph * f2 * 2.0);
+ }
+ if(typ == 3) //osc
+ {
+ if (f2 > th) {en = 1.0; }
+ else {en = en * rl;}
+ sub = (float)(en * sin(phii));
+ phii = (float)fmod( phii + dph, 6.283185f );
+ }
+
+ f3 = (fo * f3) + (fi * sub);
+ f4 = (fo * f4) + (fi * f3);
+
+ c += (a * dr) + (f4 * we); // output
+ d += (b * dr) + (f4 * we);
+
+ *++out1 = c;
+ *++out2 = d;
+ }
+ if(fabs(f1)<1.0e-10) filt1=0.f; else filt1=f1;
+ if(fabs(f2)<1.0e-10) filt2=0.f; else filt2=f2;
+ if(fabs(f3)<1.0e-10) filt3=0.f; else filt3=f3;
+ if(fabs(f4)<1.0e-10) filt4=0.f; else filt4=f4;
+ dvd = dv;
+ phs = ph;
+ osc = os;
+ phi = phii;
+ env = en;
+}
+
+void mdaSubSynth::processReplacing(float **inputs, float **outputs, int32_t sampleFrames)
+{
+ float *in1 = inputs[0];
+ float *in2 = inputs[1];
+ float *out1 = outputs[0];
+ float *out2 = outputs[1];
+ float a, b, c, d;
+ float we, dr, fi, fo, f1, f2, f3, f4, sub, rl, th, dv, ph, phii, dph, os, en;
+
+ dph = dphi;
+ rl = rls;
+ phii = phi;
+ en = env;
+ os = osc;
+ th = thr;
+ dv = dvd;
+ ph = phs;
+ we = wet;
+ dr = dry;
+ f1 = filt1;
+ f2 = filt2;
+ f3 = filt3;
+ f4 = filt4;
+
+ fi = filti;
+ fo = filto;
+
+ --in1;
+ --in2;
+ --out1;
+ --out2;
+ while(--sampleFrames >= 0)
+ {
+ a = *++in1;
+ b = *++in2; //process from here...
+
+ f1 = (fo * f1) + (fi * (a + b));
+ f2 = (fo * f2) + (fi * f1);
+
+ sub = f2;
+ if (sub > th)
+ {
+ sub = 1.0;
+ }
+ else
+ {
+ if(sub < -th)
+ {
+ sub = -1.0;
+ }
+ else
+ {
+ sub = 0.0;
+ }
+ }
+
+ if((sub * dv) < 0) //octave divider
+ {
+ dv = -dv; if(dv < 0.) ph = -ph;
+ }
+
+ if(typ == 1) //divide
+ {
+ sub = ph * sub;
+ }
+ if(typ == 2) //invert
+ {
+ sub = (float)(ph * f2 * 2.0);
+ }
+ if(typ == 3) //osc
+ {
+ if (f2 > th) {en = 1.0; }
+ else {en = en * rl;}
+ sub = (float)(en * sin(phii));
+ phii = (float)fmod( phii + dph, 6.283185f );
+ }
+
+ f3 = (fo * f3) + (fi * sub);
+ f4 = (fo * f4) + (fi * f3);
+
+ c = (a * dr) + (f4 * we); // output
+ d = (b * dr) + (f4 * we);
+
+ *++out1 = c;
+ *++out2 = d;
+ }
+ if(fabs(f1)<1.0e-10) filt1=0.f; else filt1=f1;
+ if(fabs(f2)<1.0e-10) filt2=0.f; else filt2=f2;
+ if(fabs(f3)<1.0e-10) filt3=0.f; else filt3=f3;
+ if(fabs(f4)<1.0e-10) filt4=0.f; else filt4=f4;
+ dvd = dv;
+ phs = ph;
+ osc = os;
+ phi = phii;
+ env = en;
+}
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