/* * File: StoneFireComp.cpp * * Version: 1.0 * * Created: 4/25/24 * * Copyright: Copyright © 2024 Airwindows, Airwindows uses the MIT license * * Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in * consideration of your agreement to the following terms, and your use, installation, modification * or redistribution of this Apple software constitutes acceptance of these terms. 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APPLE MAKES NO WARRANTIES, EXPRESS OR * IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE * OR IN COMBINATION WITH YOUR PRODUCTS. * * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, * REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER * UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN * IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /*============================================================================= StoneFireComp.cpp =============================================================================*/ #include "StoneFireComp.h" //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ COMPONENT_ENTRY(StoneFireComp) //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::StoneFireComp //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ StoneFireComp::StoneFireComp(AudioUnit component) : AUEffectBase(component) { CreateElements(); Globals()->UseIndexedParameters(kNumberOfParameters); SetParameter(kParam_B, kDefaultValue_ParamB ); SetParameter(kParam_C, kDefaultValue_ParamC ); SetParameter(kParam_D, kDefaultValue_ParamD ); SetParameter(kParam_E, kDefaultValue_ParamE ); SetParameter(kParam_F, kDefaultValue_ParamF ); SetParameter(kParam_G, kDefaultValue_ParamG ); SetParameter(kParam_H, kDefaultValue_ParamH ); SetParameter(kParam_I, kDefaultValue_ParamI ); SetParameter(kParam_J, kDefaultValue_ParamJ ); SetParameter(kParam_K, kDefaultValue_ParamK ); #if AU_DEBUG_DISPATCHER mDebugDispatcher = new AUDebugDispatcher (this); #endif } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::GetParameterValueStrings //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::GetParameterValueStrings(AudioUnitScope inScope, AudioUnitParameterID inParameterID, CFArrayRef * outStrings) { return kAudioUnitErr_InvalidProperty; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::GetParameterInfo //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::GetParameterInfo(AudioUnitScope inScope, AudioUnitParameterID inParameterID, AudioUnitParameterInfo &outParameterInfo ) { ComponentResult result = noErr; outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable | kAudioUnitParameterFlag_IsReadable; if (inScope == kAudioUnitScope_Global) { switch(inParameterID) { case kParam_B: AUBase::FillInParameterName (outParameterInfo, kParameterBName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamB; break; case kParam_C: AUBase::FillInParameterName (outParameterInfo, kParameterCName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamC; break; case kParam_D: AUBase::FillInParameterName (outParameterInfo, kParameterDName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamD; break; case kParam_E: AUBase::FillInParameterName (outParameterInfo, kParameterEName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamE; break; case kParam_F: AUBase::FillInParameterName (outParameterInfo, kParameterFName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamF; break; case kParam_G: AUBase::FillInParameterName (outParameterInfo, kParameterGName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamG; break; case kParam_H: AUBase::FillInParameterName (outParameterInfo, kParameterHName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamH; break; case kParam_I: AUBase::FillInParameterName (outParameterInfo, kParameterIName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamI; break; case kParam_J: AUBase::FillInParameterName (outParameterInfo, kParameterJName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamJ; break; case kParam_K: AUBase::FillInParameterName (outParameterInfo, kParameterKName, false); outParameterInfo.unit = kAudioUnitParameterUnit_Generic; outParameterInfo.minValue = 0.0; outParameterInfo.maxValue = 1.0; outParameterInfo.defaultValue = kDefaultValue_ParamK; break; default: result = kAudioUnitErr_InvalidParameter; break; } } else { result = kAudioUnitErr_InvalidParameter; } return result; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::GetPropertyInfo //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::GetPropertyInfo (AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, UInt32 & outDataSize, Boolean & outWritable) { return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable); } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // state that plugin supports only stereo-in/stereo-out processing UInt32 StoneFireComp::SupportedNumChannels(const AUChannelInfo ** outInfo) { if (outInfo != NULL) { static AUChannelInfo info; info.inChannels = 2; info.outChannels = 2; *outInfo = &info; } return 1; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::GetProperty //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::GetProperty( AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, void * outData ) { return AUEffectBase::GetProperty (inID, inScope, inElement, outData); } // StoneFireComp::Initialize //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::Initialize() { ComponentResult result = AUEffectBase::Initialize(); if (result == noErr) Reset(kAudioUnitScope_Global, 0); return result; } #pragma mark ____StoneFireCompEffectKernel //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::StoneFireCompKernel::Reset() //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ComponentResult StoneFireComp::Reset(AudioUnitScope inScope, AudioUnitElement inElement) { for (int x = 0; x < kal_total; x++) kal[x] = 0.0; fireCompL = 1.0; fireCompR = 1.0; stoneCompL = 1.0; stoneCompR = 1.0; fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX; fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX; return noErr; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // StoneFireComp::ProcessBufferLists //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ OSStatus StoneFireComp::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFlags, const AudioBufferList & inBuffer, AudioBufferList & outBuffer, UInt32 inFramesToProcess) { Float32 * inputL = (Float32*)(inBuffer.mBuffers[0].mData); Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData); Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData); Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData); UInt32 nSampleFrames = inFramesToProcess; double overallscale = 1.0; overallscale /= 44100.0; overallscale *= GetSampleRate(); double compFThresh = pow(GetParameter( kParam_B ),4); double compFAttack = 1.0/(((pow(GetParameter( kParam_C ),3)*5000.0)+500.0)*overallscale); double compFRelease = 1.0/(((pow(GetParameter( kParam_D ),5)*50000.0)+500.0)*overallscale); double fireGain = GetParameter( kParam_E )*2.0; if (fireGain > 1.0) fireGain *= fireGain; else fireGain = 1.0-pow(1.0-fireGain,2); double firePad = fireGain; if (firePad > 1.0) firePad = 1.0; double compSThresh = pow(GetParameter( kParam_F ),4); double compSAttack = 1.0/(((pow(GetParameter( kParam_G ),3)*5000.0)+500.0)*overallscale); double compSRelease = 1.0/(((pow(GetParameter( kParam_H ),5)*50000.0)+500.0)*overallscale); double stoneGain = GetParameter( kParam_I )*2.0; if (stoneGain > 1.0) stoneGain *= stoneGain; else stoneGain = 1.0-pow(1.0-stoneGain,2); double stonePad = stoneGain; if (stonePad > 1.0) stonePad = 1.0; double kalman = 1.0-(pow(GetParameter( kParam_J ),2)/overallscale); //crossover frequency between mid/bass double compRatio = 1.0-pow(1.0-GetParameter( kParam_K ),2); while (nSampleFrames-- > 0) { double inputSampleL = *inputL; double inputSampleR = *inputR; if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17; if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17; //begin KalmanL double fireL = inputSampleL; double temp = inputSampleL = inputSampleL*(1.0-kalman)*0.777; inputSampleL *= (1.0-kalman); //set up gain levels to control the beast kal[prevSlewL3] += kal[prevSampL3] - kal[prevSampL2]; kal[prevSlewL3] *= 0.5; kal[prevSlewL2] += kal[prevSampL2] - kal[prevSampL1]; kal[prevSlewL2] *= 0.5; kal[prevSlewL1] += kal[prevSampL1] - inputSampleL; kal[prevSlewL1] *= 0.5; //make slews from each set of samples used kal[accSlewL2] += kal[prevSlewL3] - kal[prevSlewL2]; kal[accSlewL2] *= 0.5; kal[accSlewL1] += kal[prevSlewL2] - kal[prevSlewL1]; kal[accSlewL1] *= 0.5; //differences between slews: rate of change of rate of change kal[accSlewL3] += (kal[accSlewL2] - kal[accSlewL1]); kal[accSlewL3] *= 0.5; //entering the abyss, what even is this kal[kalOutL] += kal[prevSampL1] + kal[prevSlewL2] + kal[accSlewL3]; kal[kalOutL] *= 0.5; //resynthesizing predicted result (all iir smoothed) kal[kalGainL] += fabs(temp-kal[kalOutL])*kalman*8.0; kal[kalGainL] *= 0.5; //madness takes its toll. Kalman Gain: how much dry to retain if (kal[kalGainL] > kalman*0.5) kal[kalGainL] = kalman*0.5; //attempts to avoid explosions kal[kalOutL] += (temp*(1.0-(0.68+(kalman*0.157)))); //this is for tuning a really complete cancellation up around Nyquist kal[prevSampL3] = kal[prevSampL2]; kal[prevSampL2] = kal[prevSampL1]; kal[prevSampL1] = (kal[kalGainL] * kal[kalOutL]) + ((1.0-kal[kalGainL])*temp); //feed the chain of previous samples if (kal[prevSampL1] > 1.0) kal[prevSampL1] = 1.0; if (kal[prevSampL1] < -1.0) kal[prevSampL1] = -1.0; double stoneL = kal[kalOutL]*0.777; fireL -= stoneL; //end KalmanL //begin KalmanR double fireR = inputSampleR; temp = inputSampleR = inputSampleR*(1.0-kalman)*0.777; inputSampleR *= (1.0-kalman); //set up gain levels to control the beast kal[prevSlewR3] += kal[prevSampR3] - kal[prevSampR2]; kal[prevSlewR3] *= 0.5; kal[prevSlewR2] += kal[prevSampR2] - kal[prevSampR1]; kal[prevSlewR2] *= 0.5; kal[prevSlewR1] += kal[prevSampR1] - inputSampleR; kal[prevSlewR1] *= 0.5; //make slews from each set of samples used kal[accSlewR2] += kal[prevSlewR3] - kal[prevSlewR2]; kal[accSlewR2] *= 0.5; kal[accSlewR1] += kal[prevSlewR2] - kal[prevSlewR1]; kal[accSlewR1] *= 0.5; //differences between slews: rate of change of rate of change kal[accSlewR3] += (kal[accSlewR2] - kal[accSlewR1]); kal[accSlewR3] *= 0.5; //entering the abyss, what even is this kal[kalOutR] += kal[prevSampR1] + kal[prevSlewR2] + kal[accSlewR3]; kal[kalOutR] *= 0.5; //resynthesizing predicted result (all iir smoothed) kal[kalGainR] += fabs(temp-kal[kalOutR])*kalman*8.0; kal[kalGainR] *= 0.5; //madness takes its toll. Kalman Gain: how much dry to retain if (kal[kalGainR] > kalman*0.5) kal[kalGainR] = kalman*0.5; //attempts to avoid explosions kal[kalOutR] += (temp*(1.0-(0.68+(kalman*0.157)))); //this is for tuning a really complete cancellation up around Nyquist kal[prevSampR3] = kal[prevSampR2]; kal[prevSampR2] = kal[prevSampR1]; kal[prevSampR1] = (kal[kalGainR] * kal[kalOutR]) + ((1.0-kal[kalGainR])*temp); //feed the chain of previous samples if (kal[prevSampR1] > 1.0) kal[prevSampR1] = 1.0; if (kal[prevSampR1] < -1.0) kal[prevSampR1] = -1.0; double stoneR = kal[kalOutR]*0.777; fireR -= stoneR; //end KalmanR //fire dynamics if (fabs(fireL) > compFThresh) { //compression L fireCompL -= (fireCompL * compFAttack); fireCompL += ((compFThresh / fabs(fireL))*compFAttack); } else fireCompL = (fireCompL*(1.0-compFRelease))+compFRelease; if (fabs(fireR) > compFThresh) { //compression R fireCompR -= (fireCompR * compFAttack); fireCompR += ((compFThresh / fabs(fireR))*compFAttack); } else fireCompR = (fireCompR*(1.0-compFRelease))+compFRelease; if (fireCompL > fireCompR) fireCompL -= (fireCompL * compFAttack); if (fireCompR > fireCompL) fireCompR -= (fireCompR * compFAttack); fireCompL = fmax(fmin(fireCompL,1.0),0.0); fireCompR = fmax(fmin(fireCompR,1.0),0.0); fireL *= (((1.0-compRatio)*firePad)+(fireCompL*compRatio*fireGain)); fireR *= (((1.0-compRatio)*firePad)+(fireCompR*compRatio*fireGain)); //stone dynamics if (fabs(stoneL) > compSThresh) { //compression L stoneCompL -= (stoneCompL * compSAttack); stoneCompL += ((compSThresh / fabs(stoneL))*compSAttack); } else stoneCompL = (stoneCompL*(1.0-compSRelease))+compSRelease; if (fabs(stoneR) > compSThresh) { //compression R stoneCompR -= (stoneCompR * compSAttack); stoneCompR += ((compSThresh / fabs(stoneR))*compSAttack); } else stoneCompR = (stoneCompR*(1.0-compSRelease))+compSRelease; if (stoneCompL > stoneCompR) stoneCompL -= (stoneCompL * compSAttack); if (stoneCompR > stoneCompL) stoneCompR -= (stoneCompR * compSAttack); stoneCompL = fmax(fmin(stoneCompL,1.0),0.0); stoneCompR = fmax(fmin(stoneCompR,1.0),0.0); stoneL *= (((1.0-compRatio)*stonePad)+(stoneCompL*compRatio*stoneGain)); stoneR *= (((1.0-compRatio)*stonePad)+(stoneCompR*compRatio*stoneGain)); inputSampleL = stoneL+fireL; inputSampleR = stoneR+fireR; //begin 32 bit stereo floating point dither int expon; frexpf((float)inputSampleL, &expon); fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5; inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); frexpf((float)inputSampleR, &expon); fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5; inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); //end 32 bit stereo floating point dither *outputL = inputSampleL; *outputR = inputSampleR; //direct stereo out inputL += 1; inputR += 1; outputL += 1; outputR += 1; } return noErr; }