/* 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 "mdaImage.h" #include #include AudioEffect *createEffectInstance(audioMasterCallback audioMaster) { return new mdaImage(audioMaster); } mdaImage::mdaImage(audioMasterCallback audioMaster) : AudioEffectX(audioMaster, 1, 6) // programs, parameters { fParam1 = 0.0f; //mode fParam2 = 0.75f; //width fParam3 = 0.5f; //skew fParam4 = 0.75f; //centre fParam5 = 0.5f; //balance fParam6 = 0.5f; //output setNumInputs(2); setNumOutputs(2); setUniqueID("mdaImage"); // identify here DECLARE_LVZ_DEPRECATED(canMono) (); canProcessReplacing(); strcpy(programName, "Stereo Image / MS Matrix"); setParameter(0, 0.6f); //go and set initial values! } bool mdaImage::getProductString(char* text) { strcpy(text, "MDA Image"); return true; } bool mdaImage::getVendorString(char* text) { strcpy(text, "mda"); return true; } bool mdaImage::getEffectName(char* name) { strcpy(name, "Image"); return true; } void mdaImage::setParameter(int32_t index, float value) { float w, k, c, b, g; //add channel invert presets: SM->LR -100, -100, +100, +100 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 w = 4.f * fParam2 - 2.f; //width k = 2.f * fParam3; //balance c = 4.f * fParam4 - 2.f; //depth b = 2.f * fParam5; //pan g = (float)pow(10.0, 2.0 * fParam6 - 1.0); switch(int(fParam1*3.9)) { case 0: //SM->LR r2l = g * c * (2.f - b); l2l = g * w * (2.f - k); r2r = g * c * b; l2r = -g * w * k; break; case 1: //MS->LR l2l = g * c * (2.f - b); r2l = g * w * (2.f - k); l2r = g * c * b; r2r = -g * w * k; break; case 2: //LR->LR g *= 0.5f; l2l = g * (c * (2.f - b) + w * (2.f - k)); r2l = g * (c * (2.f - b) - w * (2.f - k)); l2r = g * (c * b - w * k); r2r = g * (c * b + w * k); break; case 3: //LR->MS g *= 0.5f; l2l = g * (2.f - b) * (2.f - k); r2l = g * (2.f - b) * k; l2r = -g * b * (2.f - k); r2r = g * b * k; break; } } mdaImage::~mdaImage() { } void mdaImage::suspend() { } void mdaImage::setProgramName(char *name) { strcpy(programName, name); } void mdaImage::getProgramName(char *name) { strcpy(name, programName); } bool mdaImage::getProgramNameIndexed (int32_t category, int32_t index, char* name) { if (index == 0) { strcpy(name, programName); return true; } return false; } float mdaImage::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 mdaImage::getParameterName(int32_t index, char *label) { switch(index) { case 0: strcpy(label, "Mode"); break; case 1: strcpy(label, "S Width"); break; case 2: strcpy(label, "S Pan"); break; case 3: strcpy(label, "M Level"); break; case 4: strcpy(label, "M Pan"); break; case 5: strcpy(label, "Output"); break; } } #include static void int2strng(int32_t value, char *string) { sprintf(string, "%d", value); } void mdaImage::getParameterDisplay(int32_t index, char *text) { switch(index) { case 0: switch(int(fParam1*3.9)) { case 0: strcpy(text, "SM->LR"); break; case 1: strcpy(text, "MS->LR"); break; case 2: strcpy(text, "LR->LR"); break; case 3: strcpy(text, "LR->MS"); break; } break; case 1: int2strng((int32_t)(400 * fParam2 - 200), text); break; case 2: int2strng((int32_t)(200 * fParam3 - 100), text); break; case 3: int2strng((int32_t)(400 * fParam4 - 200), text); break; case 4: int2strng((int32_t)(200 * fParam5 - 100), text); break; case 5: int2strng((int32_t)(40 * fParam6 - 20), text); break; } } void mdaImage::getParameterLabel(int32_t index, char *label) { switch(index) { case 0: strcpy(label, ""); break; case 1: strcpy(label, "%"); break; case 2: strcpy(label, "L<->R"); break; case 3: strcpy(label, "%"); break; case 4: strcpy(label, "L<->R"); break; case 5: strcpy(label, "dB"); break; } } //-------------------------------------------------------------------------------- // process void mdaImage::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, ll=l2l, lr=l2r, rl=r2l, rr=r2r; --in1; --in2; --out1; --out2; while(--sampleFrames >= 0) { a = *++in1; b = *++in2; c = out1[1]; d = out2[1]; //process from here... d += rr*b + lr*a; c += ll*a + rl*b; *++out1 = c; *++out2 = d; } } void mdaImage::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, ll=l2l, lr=l2r, rl=r2l, rr=r2r; --in1; --in2; --out1; --out2; while(--sampleFrames >= 0) { a = *++in1; b = *++in2; d = rr*b + lr*a; c = ll*a + rl*b; *++out1 = c; *++out2 = d; } }