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489 lines
20 KiB
C++
Executable file
489 lines
20 KiB
C++
Executable file
/*
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* File: Srsly3.cpp
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*
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* Version: 1.0
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*
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* Created: 5/7/24
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*
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* Copyright: Copyright © 2024 Airwindows, Airwindows uses the MIT license
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*
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* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
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* consideration of your agreement to the following terms, and your use, installation, modification
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* or redistribution of this Apple software constitutes acceptance of these terms. If you do
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* not agree with these terms, please do not use, install, modify or redistribute this Apple
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* software.
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*
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* In consideration of your agreement to abide by the following terms, and subject to these terms,
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* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
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* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
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* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
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* redistribute the Apple Software in its entirety and without modifications, you must retain this
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* notice and the following text and disclaimers in all such redistributions of the Apple Software.
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* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
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* endorse or promote products derived from the Apple Software without specific prior written
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* permission from Apple. Except as expressly stated in this notice, no other rights or
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* licenses, express or implied, are granted by Apple herein, including but not limited to any
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* patent rights that may be infringed by your derivative works or by other works in which the
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* Apple Software may be incorporated.
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*
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* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
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* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
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* OR IN COMBINATION WITH YOUR PRODUCTS.
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*
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* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
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* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
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* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
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* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*=============================================================================
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Srsly3.cpp
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=============================================================================*/
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#include "Srsly3.h"
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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AUDIOCOMPONENT_ENTRY(AUBaseFactory, Srsly3)
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::Srsly3
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Srsly3::Srsly3(AudioUnit component)
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: AUEffectBase(component)
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{
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CreateElements();
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Globals()->UseIndexedParameters(kNumberOfParameters);
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SetParameter(kParam_One, kDefaultValue_ParamOne );
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SetParameter(kParam_Two, kDefaultValue_ParamTwo );
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SetParameter(kParam_Three, kDefaultValue_ParamThree );
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SetParameter(kParam_Four, kDefaultValue_ParamFour );
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SetParameter(kParam_Five, kDefaultValue_ParamFive );
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SetParameter(kParam_Six, kDefaultValue_ParamSix );
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#if AU_DEBUG_DISPATCHER
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mDebugDispatcher = new AUDebugDispatcher (this);
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#endif
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::GetParameterValueStrings
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::GetParameterValueStrings(AudioUnitScope inScope,
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AudioUnitParameterID inParameterID,
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CFArrayRef * outStrings)
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{
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return kAudioUnitErr_InvalidProperty;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::GetParameterInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::GetParameterInfo(AudioUnitScope inScope,
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AudioUnitParameterID inParameterID,
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AudioUnitParameterInfo &outParameterInfo )
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{
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ComponentResult result = noErr;
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outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
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| kAudioUnitParameterFlag_IsReadable;
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if (inScope == kAudioUnitScope_Global) {
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switch(inParameterID)
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{
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case kParam_One:
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AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamOne;
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break;
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case kParam_Two:
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AUBase::FillInParameterName (outParameterInfo, kParameterTwoName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
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break;
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case kParam_Three:
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AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamThree;
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break;
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case kParam_Four:
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AUBase::FillInParameterName (outParameterInfo, kParameterFourName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamFour;
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break;
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case kParam_Five:
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AUBase::FillInParameterName (outParameterInfo, kParameterFiveName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamFive;
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break;
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case kParam_Six:
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AUBase::FillInParameterName (outParameterInfo, kParameterSixName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamSix;
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break;
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default:
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result = kAudioUnitErr_InvalidParameter;
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break;
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}
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} else {
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result = kAudioUnitErr_InvalidParameter;
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}
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return result;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::GetPropertyInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::GetPropertyInfo (AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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UInt32 & outDataSize,
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Boolean & outWritable)
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{
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return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// state that plugin supports only stereo-in/stereo-out processing
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UInt32 Srsly3::SupportedNumChannels(const AUChannelInfo ** outInfo)
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{
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if (outInfo != NULL)
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{
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static AUChannelInfo info;
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info.inChannels = 2;
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info.outChannels = 2;
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*outInfo = &info;
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}
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return 1;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::GetProperty
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::GetProperty( AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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void * outData )
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{
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return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
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}
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// Srsly3::Initialize
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::Initialize()
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{
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ComponentResult result = AUEffectBase::Initialize();
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if (result == noErr)
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Reset(kAudioUnitScope_Global, 0);
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return result;
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}
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#pragma mark ____Srsly3EffectKernel
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::Srsly3Kernel::Reset()
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Srsly3::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
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{
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for (int x = 0; x < 9; x++) {
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biquadM2[x] = 0.0;
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biquadM7[x] = 0.0;
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biquadM10[x] = 0.0;
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biquadL3[x] = 0.0;
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biquadL7[x] = 0.0;
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biquadR3[x] = 0.0;
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biquadR7[x] = 0.0;
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biquadS3[x] = 0.0;
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biquadS5[x] = 0.0;
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}
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fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
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fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
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return noErr;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Srsly3::ProcessBufferLists
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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OSStatus Srsly3::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFlags,
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const AudioBufferList & inBuffer,
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AudioBufferList & outBuffer,
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UInt32 inFramesToProcess)
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{
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Float32 * inputL = (Float32*)(inBuffer.mBuffers[0].mData);
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Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData);
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Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData);
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Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData);
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UInt32 nSampleFrames = inFramesToProcess;
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double sampleRate = GetSampleRate();
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if (sampleRate < 22000.0) sampleRate = 22000.0; //keep biquads in range
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biquadM2[0] = 2000.0 / sampleRate; //up
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biquadM7[0] = 7000.0 / sampleRate; //down
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biquadM10[0] = 10000.0 / sampleRate; //down
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biquadL3[0] = 3000.0 / sampleRate; //up
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biquadL7[0] = 7000.0 / sampleRate; //way up
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biquadR3[0] = 3000.0 / sampleRate; //up
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biquadR7[0] = 7000.0 / sampleRate; //way up
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biquadS3[0] = 3000.0 / sampleRate; //up
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biquadS5[0] = 5000.0 / sampleRate; //way down
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double focusM = 15.0-(GetParameter( kParam_One )*10.0);
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double focusS = 20.0-(GetParameter( kParam_Two )*15.0);
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double Q = GetParameter( kParam_Four )+0.25; //add Q control: from half to double intensity
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double gainM = GetParameter( kParam_One )*2.0;
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double gainS = GetParameter( kParam_Two )*2.0;
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if (gainS > 1.0) {
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gainM /= gainS;
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gainS *= gainS;
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}
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if (gainM > 1.0) gainM = 1.0;
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biquadM2[1] = focusM*0.25*Q; //Q, mid 2K boost is much broader
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biquadM7[1] = focusM*Q; //Q
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biquadM10[1] = focusM*Q; //Q
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biquadS3[1] = focusM*Q; //Q
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biquadS5[1] = focusM*Q; //Q
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biquadL3[1] = focusS*Q; //Q
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biquadL7[1] = focusS*Q; //Q
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biquadR3[1] = focusS*Q; //Q
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biquadR7[1] = focusS*Q; //Q
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double K = tan(M_PI * biquadM2[0]);
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double norm = 1.0 / (1.0 + K / biquadM2[1] + K * K);
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biquadM2[2] = K / biquadM2[1] * norm;
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biquadM2[4] = -biquadM2[2];
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biquadM2[5] = 2.0 * (K * K - 1.0) * norm;
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biquadM2[6] = (1.0 - K / biquadM2[1] + K * K) * norm;
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K = tan(M_PI * biquadM7[0]);
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norm = 1.0 / (1.0 + K / biquadM7[1] + K * K);
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biquadM7[2] = K / biquadM7[1] * norm;
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biquadM7[4] = -biquadM7[2];
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biquadM7[5] = 2.0 * (K * K - 1.0) * norm;
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biquadM7[6] = (1.0 - K / biquadM7[1] + K * K) * norm;
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K = tan(M_PI * biquadM10[0]);
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norm = 1.0 / (1.0 + K / biquadM10[1] + K * K);
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biquadM10[2] = K / biquadM10[1] * norm;
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biquadM10[4] = -biquadM10[2];
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biquadM10[5] = 2.0 * (K * K - 1.0) * norm;
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biquadM10[6] = (1.0 - K / biquadM10[1] + K * K) * norm;
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K = tan(M_PI * biquadL3[0]);
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norm = 1.0 / (1.0 + K / biquadL3[1] + K * K);
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biquadL3[2] = K / biquadL3[1] * norm;
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biquadL3[4] = -biquadL3[2];
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biquadL3[5] = 2.0 * (K * K - 1.0) * norm;
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biquadL3[6] = (1.0 - K / biquadL3[1] + K * K) * norm;
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K = tan(M_PI * biquadL7[0]);
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norm = 1.0 / (1.0 + K / biquadL7[1] + K * K);
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biquadL7[2] = K / biquadL7[1] * norm;
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biquadL7[4] = -biquadL7[2];
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biquadL7[5] = 2.0 * (K * K - 1.0) * norm;
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biquadL7[6] = (1.0 - K / biquadL7[1] + K * K) * norm;
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K = tan(M_PI * biquadR3[0]);
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norm = 1.0 / (1.0 + K / biquadR3[1] + K * K);
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biquadR3[2] = K / biquadR3[1] * norm;
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biquadR3[4] = -biquadR3[2];
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biquadR3[5] = 2.0 * (K * K - 1.0) * norm;
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biquadR3[6] = (1.0 - K / biquadR3[1] + K * K) * norm;
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K = tan(M_PI * biquadR7[0]);
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norm = 1.0 / (1.0 + K / biquadR7[1] + K * K);
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biquadR7[2] = K / biquadR7[1] * norm;
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biquadR7[4] = -biquadR7[2];
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biquadR7[5] = 2.0 * (K * K - 1.0) * norm;
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biquadR7[6] = (1.0 - K / biquadR7[1] + K * K) * norm;
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K = tan(M_PI * biquadS3[0]);
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norm = 1.0 / (1.0 + K / biquadS3[1] + K * K);
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biquadS3[2] = K / biquadS3[1] * norm;
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biquadS3[4] = -biquadS3[2];
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biquadS3[5] = 2.0 * (K * K - 1.0) * norm;
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biquadS3[6] = (1.0 - K / biquadS3[1] + K * K) * norm;
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K = tan(M_PI * biquadS5[0]);
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norm = 1.0 / (1.0 + K / biquadS5[1] + K * K);
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biquadS5[2] = K / biquadS5[1] * norm;
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biquadS5[4] = -biquadS5[2];
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biquadS5[5] = 2.0 * (K * K - 1.0) * norm;
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biquadS5[6] = (1.0 - K / biquadS5[1] + K * K) * norm;
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double depthM = pow(GetParameter( kParam_One ),2)*2.0; //proportion to mix in the filtered stuff
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double depthS = pow(GetParameter( kParam_Two ),2)*2.0; //proportion to mix in the filtered stuff
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double level = GetParameter( kParam_Three ); //output pad
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double nonLin = pow(GetParameter( kParam_Five ),2); //nonlinearity of filters
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double wet = GetParameter( kParam_Six ); //dry/wet
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//biquad contains these values:
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//[0] is frequency: 0.000001 to 0.499999 is near-zero to near-Nyquist
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//[1] is resonance, 0.7071 is Butterworth. Also can't be zero
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//[2] is a0 but you need distinct ones for additional biquad instances so it's here
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//[3] is a1 but you need distinct ones for additional biquad instances so it's here
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//[4] is a2 but you need distinct ones for additional biquad instances so it's here
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//[5] is b1 but you need distinct ones for additional biquad instances so it's here
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//[6] is b2 but you need distinct ones for additional biquad instances so it's here
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//[7] is LEFT stored delayed sample (freq and res are stored so you can move them sample by sample)
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//[8] is LEFT stored delayed sample (you have to include the coefficient making code if you do that)
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while (nSampleFrames-- > 0) {
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double inputSampleL = *inputL;
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double inputSampleR = *inputR;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double drySampleL = inputSampleL;
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double drySampleR = inputSampleR;
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double mid = inputSampleL + inputSampleR;
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double rawmid = mid * 0.5; //we'll use this to isolate L&R a little
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double side = inputSampleL - inputSampleR;
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double boostside = side * depthS;
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//assign mid and side.Between these sections, you can do mid/side processing
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double dia0 = fabs(biquadM2[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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double tempSample = (mid * dia0) + biquadM2[7];
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biquadM2[7] = (-tempSample * biquadM2[5]) + biquadM2[8];
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biquadM2[8] = (mid * -dia0) - (tempSample * biquadM2[6]);
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double M2Sample = tempSample; //like mono AU, 7 and 8 store L channel
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dia0 = fabs(biquadM7[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (mid * dia0) + biquadM7[7];
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biquadM7[7] = (-tempSample * biquadM7[5]) + biquadM7[8];
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biquadM7[8] = (mid * -dia0) - (tempSample * biquadM7[6]);
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double M7Sample = -tempSample*2.0; //like mono AU, 7 and 8 store L channel
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dia0 = fabs(biquadM10[2]*(1.0+(mid*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (mid * dia0) + biquadM10[7];
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biquadM10[7] = (-tempSample * biquadM10[5]) + biquadM10[8];
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biquadM10[8] = (mid * -dia0) - (tempSample * biquadM10[6]);
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double M10Sample = -tempSample*2.0; //like mono AU, 7 and 8 store L channel
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//mid
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dia0 = fabs(biquadS3[2]*(1.0+(side*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (side * dia0) + biquadS3[7];
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biquadS3[7] = (-tempSample * biquadS3[5]) + biquadS3[8];
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biquadS3[8] = (side * -dia0) - (tempSample * biquadS3[6]);
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double S3Sample = tempSample*2.0; //like mono AU, 7 and 8 store L channel
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dia0 = fabs(biquadS5[2]*(1.0+(side*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (side * dia0) + biquadS5[7];
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biquadS5[7] = (-tempSample * biquadS5[5]) + biquadS5[8];
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biquadS5[8] = (side * -dia0) - (tempSample * biquadS5[6]);
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double S5Sample = -tempSample*5.0; //like mono AU, 7 and 8 store L channel
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mid = (M2Sample + M7Sample + M10Sample)*depthM;
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side = (S3Sample + S5Sample + boostside)*depthS;
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double msOutSampleL = (mid+side)/2.0;
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double msOutSampleR = (mid-side)/2.0;
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//unassign mid and side
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double isoSampleL = inputSampleL-rawmid;
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double isoSampleR = inputSampleR-rawmid; //trying to isolate L and R a little
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dia0 = fabs(biquadL3[2]*(1.0+(isoSampleL*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (isoSampleL * dia0) + biquadL3[7];
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biquadL3[7] = (-tempSample * biquadL3[5]) + biquadL3[8];
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biquadL3[8] = (isoSampleL * -dia0) - (tempSample * biquadL3[6]);
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double L3Sample = tempSample; //like mono AU, 7 and 8 store L channel
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dia0 = fabs(biquadR3[2]*(1.0+(isoSampleR*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (isoSampleR * dia0) + biquadR3[7];
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biquadR3[7] = (-tempSample * biquadR3[5]) + biquadR3[8];
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biquadR3[8] = (isoSampleR * -dia0) - (tempSample * biquadR3[6]);
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double R3Sample = tempSample; //note: 9 and 10 store the R channel
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dia0 = fabs(biquadL7[2]*(1.0+(isoSampleL*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (isoSampleL * dia0) + biquadL7[7];
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biquadL7[7] = (-tempSample * biquadL7[5]) + biquadL7[8];
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biquadL7[8] = (isoSampleL * -dia0) - (tempSample * biquadL7[6]);
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double L7Sample = tempSample*3.0; //like mono AU, 7 and 8 store L channel
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dia0 = fabs(biquadR7[2]*(1.0+(isoSampleR*nonLin))); if (dia0 > 1.0) dia0 = 1.0;
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tempSample = (isoSampleR * dia0) + biquadR7[7];
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biquadR7[7] = (-tempSample * biquadR7[5]) + biquadR7[8];
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biquadR7[8] = (isoSampleR * -dia0) - (tempSample * biquadR7[6]);
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double R7Sample = tempSample*3.0; //note: 9 and 10 store the R channel
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double processingL = msOutSampleL + ((L3Sample + L7Sample)*depthS);
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double processingR = msOutSampleR + ((R3Sample + R7Sample)*depthS);
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//done with making filters, now we apply them
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mid = inputSampleL + inputSampleR;
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side = inputSampleL - inputSampleR;
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//re-assign mid and side.Between these sections, you can do mid/side processing
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mid *= gainM;
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side *= gainS;
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inputSampleL = ((mid+side)/2.0)+processingL;
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inputSampleR = ((mid-side)/2.0)+processingR;
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//unassign mid and side
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if (level < 1.0) {
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inputSampleL *= level;
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inputSampleR *= level;
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}
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if (wet != 1.0) {
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inputSampleL = (inputSampleL * wet) + (drySampleL * (1.0-wet));
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inputSampleR = (inputSampleR * wet) + (drySampleR * (1.0-wet));
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}
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//Dry/Wet control, defaults to the last slider
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*outputL = inputSampleL;
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*outputR = inputSampleR;
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//direct stereo out
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inputL += 1;
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inputR += 1;
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outputL += 1;
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outputR += 1;
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}
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return noErr;
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}
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