/* 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 "mdaStereo.h" #include #include AudioEffect *createEffectInstance(audioMasterCallback audioMaster) { return new mdaStereo(audioMaster); } mdaStereo::mdaStereo(audioMasterCallback audioMaster) : AudioEffectX(audioMaster, 1, 5) // programs, parameters , fParam6(0.0f) { //inits here! fParam1 = (float)0.78; //Haas/Comb width fParam2 = (float)0.43; //delay fParam3 = (float)0.50; //balance fParam4 = (float)0.00; //mod fParam5 = (float)0.50; //rate size = 4800; bufpos = 0; buffer = new float[size]; setNumInputs(2); setNumOutputs(2); setUniqueID("mdaStereo"); // identify here DECLARE_LVZ_DEPRECATED(canMono) (); canProcessReplacing(); strcpy(programName, "Stereo Simulator"); suspend(); // flush buffer //calcs here! phi=0; dphi=(float)(3.141 * pow(10.0,-2.0 + 3.0 * fParam5) / getSampleRate()); mod=(float)(2100.0 * pow(fParam4, 2)); if(fParam1<0.5) { fli = (float)(0.25 + (1.5 * fParam1)); fld = 0.0; fri = (float)(2.0 * fParam1); frd = (float)(1.0 - fri); } else { fli = (float)(1.5 - fParam1); fld = (float)(fParam1 - 0.5); fri = fli; frd = -fld; } fdel = (float)(20.0 + 2080.0 * pow(fParam2, 2)); if(fParam3>0.5) { fli *= (float)((1.0 - fParam3) * 2.0); fld *= (float)((1.0 - fParam3) * 2.0); } else { fri *= (2 * fParam3); frd *= (2 * fParam3); } fri *= (float)(0.5 + fabs(fParam1 - 0.5)); frd *= (float)(0.5 + fabs(fParam1 - 0.5)); fli *= (float)(0.5 + fabs(fParam1 - 0.5)); fld *= (float)(0.5 + fabs(fParam1 - 0.5)); } //still do something sensible with stereo inputs? Haas? bool mdaStereo::getProductString(char* text) { strcpy(text, "MDA Stereo"); return true; } bool mdaStereo::getVendorString(char* text) { strcpy(text, "mda"); return true; } bool mdaStereo::getEffectName(char* name) { strcpy(name, "Stereo"); return true; } void mdaStereo::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; } //calcs here dphi=(float)(3.141 * pow(10.0,-2.0 + 3.0 * fParam5) / getSampleRate()); mod=(float)(2100.0 * pow(fParam4, 2)); if(fParam1<0.5) { fli = (float)(0.25 + (1.5 * fParam1)); fld = 0.0; fri = (float)(2.0 * fParam1); frd = (float)(1.0 - fri); } else { fli = (float)(1.5 - fParam1); fld = (float)(fParam1 - 0.5); fri = fli; frd = -fld; } fdel = (float)(20.0 + 2080.0 * pow(fParam2, 2)); if(fParam3>0.5) { fli *= (float)((1.0 - fParam3) * 2.0); fld *= (float)((1.0 - fParam3) * 2.0); } else { fri *= (2 * fParam3); frd *= (2 * fParam3); } fri *= (float)(0.5 + fabs(fParam1 - 0.5)); frd *= (float)(0.5 + fabs(fParam1 - 0.5)); fli *= (float)(0.5 + fabs(fParam1 - 0.5)); fld *= (float)(0.5 + fabs(fParam1 - 0.5)); } mdaStereo::~mdaStereo() { if(buffer) delete [] buffer; } void mdaStereo::suspend() { memset(buffer, 0, size * sizeof(float)); } void mdaStereo::setProgramName(char *name) { strcpy(programName, name); } void mdaStereo::getProgramName(char *name) { strcpy(name, programName); } bool mdaStereo::getProgramNameIndexed (int32_t category, int32_t index, char* name) { if (index == 0) { strcpy(name, programName); return true; } return false; } float mdaStereo::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; } return v; } void mdaStereo::getParameterName(int32_t index, char *label) { switch(index) { case 0: strcpy(label, "Width"); break; case 1: strcpy(label, "Delay"); break; case 2: strcpy(label, "Balance"); break; case 3: strcpy(label, "Mod"); break; case 4: strcpy(label, "Rate"); break; } } #include static void int2strng(int32_t value, char *string) { sprintf(string, "%d", value); } static void float2strng(float value, char *string) { sprintf(string, "%.2f", value); } void mdaStereo::getParameterDisplay(int32_t index, char *text) { switch(index) { case 0: int2strng((int32_t)(200.0 * fabs(fParam1 - 0.5)), text);break; case 1: float2strng((float)(1000.0 * fdel / getSampleRate()), text); break; case 2: int2strng((int32_t)(200.0 * (fParam3 - 0.5)), text); break; case 3: if(mod>0.f) float2strng((float)(1000.0 * mod / getSampleRate()), text); else strcpy(text, "OFF"); break; case 4: float2strng((float)pow(10.0,2.0 - 3.0 * fParam5), text); break; } } void mdaStereo::getParameterLabel(int32_t index, char *label) { switch(index) { case 0: if(fParam1<0.5) { strcpy(label, "Haas"); } else { strcpy(label, "Comb"); } break; case 1: strcpy(label, "ms"); break; case 2: strcpy(label, ""); break; case 3: strcpy(label, "ms"); break; case 4: strcpy(label, "sec"); break; } } //-------------------------------------------------------------------------------- // process void mdaStereo::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 li, ld, ri, rd, del, ph=phi, dph=dphi, mo=mod; int32_t tmp, bp = bufpos; li = fli; ld = fld; ri = fri; rd = frd; del = fdel; --in1; --in2; --out1; --out2; if(mo>0.f) //modulated delay { while(--sampleFrames >= 0) { a = *++in1 + *++in2; //sum to mono c = out1[1]; d = out2[1]; //process from here... *(buffer + bp) = a; //write tmp = (bp + (int)(del + fabs(mo * sin(ph)) ) ) % 4410; b = *(buffer + tmp); c += (a * li) - (b * ld); // output d += (a * ri) - (b * rd); bp = (bp - 1); if(bp < 0) bp = 4410; //buffer position ph = ph + dph; *++out1 = c; *++out2 = d; } } else { while(--sampleFrames >= 0) { a = *++in1 + *++in2; //sum to mono c = out1[1]; d = out2[1]; //process from here... *(buffer + bp) = a; //write tmp = (bp + (int)(del) ) % 4410; b = *(buffer + tmp); c += (a * li) - (b * ld); // output d += (a * ri) - (b * rd); bp = (bp - 1); if(bp < 0) bp = 4410; //buffer position *++out1 = c; *++out2 = d; } } bufpos = bp; phi = (float)fmod(ph,6.2831853f); } void mdaStereo::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 li, ld, ri, rd, del, ph=phi, dph=dphi, mo=mod; int32_t tmp, bp = bufpos; li = fli; ld = fld; ri = fri; rd = frd; del = fdel; --in1; --in2; --out1; --out2; if(mo>0.f) //modulated delay { while(--sampleFrames >= 0) { a = *++in1 + *++in2; //sum to mono *(buffer + bp) = a; //write tmp = (bp + (int)(del + fabs(mo * sin(ph)) ) ) % 4410; b = *(buffer + tmp); c = (a * li) - (b * ld); // output d = (a * ri) - (b * rd); bp = (bp - 1); if(bp < 0) bp = 4410; //buffer position ph = ph + dph; *++out1 = c; *++out2 = d; } } else { while(--sampleFrames >= 0) { a = *++in1 + *++in2; //sum to mono *(buffer + bp) = a; //write tmp = (bp + (int)(del) ) % 4410; b = *(buffer + tmp); c = (a * li) - (b * ld); // output d = (a * ri) - (b * rd); bp = (bp - 1); if(bp < 0) bp = 4410; //buffer position *++out1 = c; *++out2 = d; } } bufpos = bp; phi = (float)fmod(ph,6.2831853f); }