/* Copyright 2008-2011 David Robillard 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 . */ #include "mdaTransient.h" #include AudioEffect *createEffectInstance(audioMasterCallback audioMaster) { return new mdaTransient(audioMaster); } mdaTransient::mdaTransient(audioMasterCallback audioMaster) : AudioEffectX(audioMaster, 1, 6) { fParam1 = (float)0.50; //attack fParam2 = (float)0.50; //release fParam3 = (float)0.50; //output fParam4 = (float)0.49; //filter fParam5 = (float)0.35; //att-rel fParam6 = (float)0.35; //rel-att setNumInputs(2); // stereo in setNumOutputs(2); // stereo out setUniqueID("mdaTransient"); // identify DECLARE_LVZ_DEPRECATED(canMono) (); canProcessReplacing(); // supports both accumulating and replacing output strcpy(programName, "Transient Processor"); // default program name setParameter(0, 0.5f); } mdaTransient::~mdaTransient() { // nothing to do here } bool mdaTransient::getProductString(char* text) { strcpy(text, "MDA Transient"); return true; } bool mdaTransient::getVendorString(char* text) { strcpy(text, "mda"); return true; } bool mdaTransient::getEffectName(char* name) { strcpy(name, "Transient"); return true; } void mdaTransient::setProgramName(char *name) { strcpy(programName, name); } void mdaTransient::getProgramName(char *name) { strcpy(name, programName); } bool mdaTransient::getProgramNameIndexed (int32_t category, int32_t index, char* name) { if (index == 0) { strcpy(name, programName); return true; } return false; } void mdaTransient::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; } //calcs here dry = (float)(pow(10.0, (2.0 * fParam3) - 1.0)); if(fParam4>0.50) { fili = 0.8f - 1.6f*fParam4; filo = 1.f + fili; filx = 1.f; } else { fili = 0.1f + 1.8f*fParam4; filo = 1.f - fili; filx = 0.f; } if(fParam1>0.5) { att1 = (float)pow(10.0, -1.5); att2 = (float)pow(10.0, 1.0 - 5.0 * fParam1); } else { att1 = (float)pow(10.0, -4.0 + 5.0 * fParam1); att2 = (float)pow(10.0, -1.5); } rel12 = 1.f - (float)pow(10.0, -2.0 - 4.0 * fParam5); if(fParam2>0.5) { rel3 = 1.f - (float)pow(10.0, -4.5); rel4 = 1.f - (float)pow(10.0, -5.85 + 2.7 * fParam2); } else { rel3 = 1.f - (float)pow(10.0, -3.15 - 2.7 * fParam2); rel4 = 1.f - (float)pow(10.0, -4.5); } att34 = (float)pow(10.0, - 4.0 * fParam6); } float mdaTransient::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 mdaTransient::getParameterName(int32_t index, char *label) { switch(index) { case 0: strcpy(label, "Attack"); break; case 1: strcpy(label, "Release"); break; case 2: strcpy(label, "Output"); break; case 3: strcpy(label, "Filter"); break; case 4: strcpy(label, "Att Hold"); break; case 5: strcpy(label, "Rel Hold"); break; } } #include void int2strng(int32_t value, char *string) { sprintf(string, "%d", value); } void mdaTransient::getParameterDisplay(int32_t index, char *text) { switch(index) { case 0: int2strng((int32_t)(200*fParam1 - 100),text); break; case 1: int2strng((int32_t)(200*fParam2 - 100),text); break; case 2: int2strng((int32_t)(40.0*fParam3 - 20.0),text); break; case 3: int2strng((int32_t)(20*fParam4 - 10),text); break; case 4: int2strng((int32_t)(100*fParam5),text); break; case 5: int2strng((int32_t)(100*fParam6),text); break; } } void mdaTransient::getParameterLabel(int32_t index, char *label) { switch(index) { case 0: strcpy(label, "%"); break; case 1: strcpy(label, "%"); break; case 2: strcpy(label, "dB"); break; case 3: strcpy(label, "Lo <> Hi"); break; case 4: strcpy(label, "%"); break; case 5: strcpy(label, "%"); break; } } //-------------------------------------------------------------------------------- // process void mdaTransient::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, e, f, g, i; float e1=env1, e2=env2, e3=env3, e4=env4, y=dry; float a1=att1, a2=att2, r12=rel12, a34=att34, r3=rel3, r4=rel4; float fi=fili, fo=filo, fx=filx, fb1=fbuf1, fb2=fbuf2; --in1; --in2; --out1; --out2; while(--sampleFrames >= 0) { a = *++in1; b = *++in2; c = out1[1]; d = out1[2]; fb1 = fo*fb1 + fi*a; fb2 = fo*fb2 + fi*b; e = fb1 + fx*a; f = fb2 + fx*b; i = a + b; i = (i>0)? i : -i; e1 = (i>e1)? e1 + a1 * (i-e1) : e1 * r12; e2 = (i>e2)? e2 + a2 * (i-e2) : e2 * r12; e3 = (i>e3)? e3 + a34 * (i-e3) : e3 * r3; e4 = (i>e4)? e4 + a34 * (i-e4) : e4 * r4; g = (e1 - e2 + e3 - e4); *++out1 = c + y * (a + e * g); *++out2 = d + y * (b + f * g); } if(e1<1.0e-10) { env1=0.f; env2=0.f; env3=0.f; env4=0.f; fbuf1=0.f; fbuf2=0.f; } else { env1=e1; env2=e2; env3=e3; env4=e4; fbuf1=fb1; fbuf2=fb2; } } void mdaTransient::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, e, f, g, i; float e1=env1, e2=env2, e3=env3, e4=env4, y=dry; float a1=att1, a2=att2, r12=rel12, a34=att34, r3=rel3, r4=rel4; float fi=fili, fo=filo, fx=filx, fb1=fbuf1, fb2=fbuf2; --in1; --in2; --out1; --out2; while(--sampleFrames >= 0) { a = *++in1; b = *++in2; fb1 = fo*fb1 + fi*a; fb2 = fo*fb2 + fi*b; e = fb1 + fx*a; f = fb2 + fx*b; i = a + b; i = (i>0)? i : -i; e1 = (i>e1)? e1 + a1 * (i-e1) : e1 * r12; e2 = (i>e2)? e2 + a2 * (i-e2) : e2 * r12; e3 = (i>e3)? e3 + a34 * (i-e3) : e3 * r3; e4 = (i>e4)? e4 + a34 * (i-e4) : e4 * r4; g = (e1 - e2 + e3 - e4); *++out1 = y * (a + e * g); *++out2 = y * (b + f * g); } if(e1<1.0e-10) { env1=0.f; env2=0.f; env3=0.f; env4=0.f; fbuf1=0.f; fbuf2=0.f; } else { env1=e1; env2=e2; env3=e3; env4=e4; fbuf1=fb1; fbuf2=fb2; } }