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355 lines
16 KiB
C++
Executable file
355 lines
16 KiB
C++
Executable file
/*
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* File: Elation.cpp
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*
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* Version: 1.0
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*
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* Created: 1/11/20
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*
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* Copyright: Copyright © 2020 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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Elation.cpp
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=============================================================================*/
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#include "Elation.h"
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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COMPONENT_ENTRY(Elation)
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Elation::Elation
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Elation::Elation(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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#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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// Elation::GetParameterValueStrings
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Elation::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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// Elation::GetParameterInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Elation::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 = 3.0;
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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 = 3.0;
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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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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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// Elation::GetPropertyInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Elation::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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// Elation::GetProperty
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Elation::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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// Elation::Initialize
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult Elation::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 ____ElationEffectKernel
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Elation::ElationKernel::Reset()
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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void Elation::ElationKernel::Reset()
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{
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for(int count = 0; count < 34; count++) {b[count] = 0;}
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compA = 1.0; compB = 1.0; flip = false; previous = 0.0;
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compC = 1.0; compD = 1.0; previousB = 0.0;
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lastSample = 0.0;
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fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Elation::ElationKernel::Process
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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void Elation::ElationKernel::Process( const Float32 *inSourceP,
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Float32 *inDestP,
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UInt32 inFramesToProcess,
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UInt32 inNumChannels,
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bool &ioSilence )
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{
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UInt32 nSampleFrames = inFramesToProcess;
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const Float32 *sourceP = inSourceP;
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Float32 *destP = inDestP;
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Float64 wet = GetParameter( kParam_One );
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Float64 sqdrive = GetParameter( kParam_Two );
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if (sqdrive > 1.0) sqdrive *= sqdrive;
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sqdrive = sqrt(sqdrive);
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Float64 indrive = GetParameter( kParam_Three );
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Float64 compthreshold = (6.0 - indrive)/6.0;
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Float64 recoveryspd = indrive / 32.0;
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if (indrive > 1.0) indrive *= indrive;
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indrive *= (1.0+(0.226*sqdrive));
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//no gain loss of convolution for APIcolypse
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//calibrate this to match noise level with character at 1.0
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//you get for instance 0.819 and 1.0-0.819 is 0.181
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Float64 randy;
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Float64 outlevel = GetParameter( kParam_Four );
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Float64 threshSample;
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Float64 abSample;
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Float64 outputSample;
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while (nSampleFrames-- > 0) {
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double inputSample = *sourceP;
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if (fabs(inputSample)<1.18e-23) inputSample = fpd * 1.18e-17;
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double drySample = inputSample;
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inputSample *= indrive;
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abSample = fabs(inputSample);
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if (abSample > previous) threshSample = previous;
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else threshSample = abSample;
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//calibrated to match gain through convolution and -0.3 correction
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//quick lil compression
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if (threshSample > 2.0)
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{
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compA = (compA + (1.0 / threshSample)) / 2.0;
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compB = (compB + (1.0 / threshSample)) / 2.0;
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}
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if (flip)
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{
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inputSample *= compA;
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threshSample *= compA;
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if (threshSample > compthreshold)
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{compA = (compA + compA + (compthreshold / threshSample)) / 3.0;}
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else
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{if (compA < 1.0) compA += pow((1.0-compA)*recoveryspd,7);}
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}
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else
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{
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inputSample *= compB;
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threshSample *= compB;
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if (threshSample > compthreshold)
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{compB = (compB + compB + (compthreshold / threshSample)) / 3.0;}
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else
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{if (compB < 1.0) compB += pow((1.0-compB)*recoveryspd,7);}
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}
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previous = abSample;
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//now the convolution
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if (sqdrive > 0.0){
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b[33] = b[32]; b[32] = b[31];
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b[31] = b[30]; b[30] = b[29]; b[29] = b[28]; b[28] = b[27]; b[27] = b[26]; b[26] = b[25]; b[25] = b[24]; b[24] = b[23];
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b[23] = b[22]; b[22] = b[21]; b[21] = b[20]; b[20] = b[19]; b[19] = b[18]; b[18] = b[17]; b[17] = b[16]; b[16] = b[15];
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b[15] = b[14]; b[14] = b[13]; b[13] = b[12]; b[12] = b[11]; b[11] = b[10]; b[10] = b[9]; b[9] = b[8]; b[8] = b[7];
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b[7] = b[6]; b[6] = b[5]; b[5] = b[4]; b[4] = b[3]; b[3] = b[2]; b[2] = b[1]; b[1] = b[0]; b[0] = inputSample * sqdrive;
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//inputSample -= ((b[1] * (0.25867935358656502 - (0.00045755657070112*fabs(b[1]))))*threshold);
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inputSample -= (b[1] * (0.25867935358656502 - (0.00045755657070112*fabs(b[1]))));
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inputSample += (b[2] * (0.11509367290253694 - (0.00017494270657228*fabs(b[2]))));
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inputSample -= (b[3] * (0.06709853575891785 - (0.00058913102597723*fabs(b[3]))));
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inputSample += (b[4] * (0.01871006356851681 - (0.00003387358004645*fabs(b[4]))));
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inputSample -= (b[5] * (0.00794797957360465 - (0.00044224784691203*fabs(b[5]))));
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inputSample -= (b[6] * (0.01956921817394220 - (0.00006718936750076*fabs(b[6]))));
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inputSample += (b[7] * (0.01682120257195205 + (0.00032857446292230*fabs(b[7]))));
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inputSample -= (b[8] * (0.03401069039824205 - (0.00013634182872897*fabs(b[8]))));
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inputSample += (b[9] * (0.02369950268232634 + (0.00023112685751657*fabs(b[9]))));
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inputSample -= (b[10] * (0.03477071178117132 - (0.00018029792231600*fabs(b[10]))));
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inputSample += (b[11] * (0.02024369717958201 + (0.00017337813374202*fabs(b[11]))));
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inputSample -= (b[12] * (0.02819087729102172 - (0.00021438538665420*fabs(b[12]))));
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inputSample += (b[13] * (0.01147946743141303 + (0.00014424066034649*fabs(b[13]))));
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inputSample -= (b[14] * (0.01894777011468867 - (0.00021549146262408*fabs(b[14]))));
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inputSample += (b[15] * (0.00301370330346873 + (0.00013527460148394*fabs(b[15]))));
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inputSample -= (b[16] * (0.01067147835815486 - (0.00020960689910868*fabs(b[16]))));
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inputSample -= (b[17] * (0.00402715397506384 - (0.00014421582712470*fabs(b[17]))));
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inputSample -= (b[18] * (0.00502221703392005 - (0.00019805767015024*fabs(b[18]))));
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inputSample -= (b[19] * (0.00808788533308497 - (0.00016095444141931*fabs(b[19]))));
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inputSample -= (b[20] * (0.00232696588842683 - (0.00018384470981829*fabs(b[20]))));
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inputSample -= (b[21] * (0.00943950821324531 - (0.00017098987347593*fabs(b[21]))));
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inputSample -= (b[22] * (0.00193709517200834 - (0.00018151995939591*fabs(b[22]))));
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inputSample -= (b[23] * (0.00899713952612659 - (0.00017385835059948*fabs(b[23]))));
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inputSample -= (b[24] * (0.00280584331659089 - (0.00017742164162470*fabs(b[24]))));
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inputSample -= (b[25] * (0.00780381001954970 - (0.00018002500755708*fabs(b[25]))));
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inputSample -= (b[26] * (0.00400370310490333 - (0.00017471691087957*fabs(b[26]))));
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inputSample -= (b[27] * (0.00661527728186928 - (0.00018137323370347*fabs(b[27]))));
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inputSample -= (b[28] * (0.00496545526864518 - (0.00017681872601767*fabs(b[28]))));
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inputSample -= (b[29] * (0.00580728820997532 - (0.00018186220389790*fabs(b[29]))));
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inputSample -= (b[30] * (0.00549309984725666 - (0.00017722985399075*fabs(b[30]))));
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inputSample -= (b[31] * (0.00542194777529239 - (0.00018486900185338*fabs(b[31]))));
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inputSample -= (b[32] * (0.00565992080998939 - (0.00018005824393118*fabs(b[32]))));
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inputSample -= (b[33] * (0.00532121562846656 - (0.00018643189636216*fabs(b[33]))));}
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//we apply the first samples of the impulse- dynamically adjusted.
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abSample = fabs(inputSample);
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if (abSample > previousB) threshSample = previousB;
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else threshSample = abSample;
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//calibrated to match gain through convolution and -0.3 correction
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//quick lil compression
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if (threshSample > 2.0)
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{
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compC = (compC + (1.0 / threshSample)) / 2.0;
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compD = (compD + (1.0 / threshSample)) / 2.0;
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}
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if (flip)
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{
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inputSample *= compC;
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threshSample *= compC;
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if (threshSample > compthreshold)
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{compC = (compC + compC + (compthreshold / threshSample)) / 3.0;}
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else
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{if (compC < 1.0) compC += pow((1.0-compC)*recoveryspd,7);}
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}
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else
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{
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inputSample *= compD;
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threshSample *= compD;
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if (threshSample > compthreshold)
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{compD = (compD + compD + (compthreshold / threshSample)) / 3.0;}
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else
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{if (compD < 1.0) compD += pow((1.0-compD)*recoveryspd,7);}
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}
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previousB = abSample;
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//another dose of compression, please
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flip = !flip;
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randy = ((double(fpd)/UINT32_MAX)*0.054);
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outputSample = ((((inputSample*(1-randy))+(lastSample*randy))*wet)+(drySample*(1.0-wet))) * outlevel;
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lastSample = inputSample;
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inputSample = outputSample;
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//begin 32 bit floating point dither
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int expon; frexpf((float)inputSample, &expon);
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fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
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inputSample += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit floating point dither
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*destP = inputSample;
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sourceP += inNumChannels; destP += inNumChannels;
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}
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}
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