mirror of
https://github.com/airwindows/airwindows.git
synced 2026-05-15 14:16:00 -06:00
272 lines
12 KiB
C++
Executable file
272 lines
12 KiB
C++
Executable file
/*
|
|
* File: Dynamics2Mono.cpp
|
|
*
|
|
* Version: 1.0
|
|
*
|
|
* Created: 9/20/25
|
|
*
|
|
* Copyright: Copyright © 2025 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. If you do
|
|
* not agree with these terms, please do not use, install, modify or redistribute this Apple
|
|
* software.
|
|
*
|
|
* In consideration of your agreement to abide by the following terms, and subject to these terms,
|
|
* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
|
|
* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
|
|
* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
|
|
* redistribute the Apple Software in its entirety and without modifications, you must retain this
|
|
* notice and the following text and disclaimers in all such redistributions of the Apple Software.
|
|
* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
|
|
* endorse or promote products derived from the Apple Software without specific prior written
|
|
* permission from Apple. Except as expressly stated in this notice, no other rights or
|
|
* licenses, express or implied, are granted by Apple herein, including but not limited to any
|
|
* patent rights that may be infringed by your derivative works or by other works in which the
|
|
* Apple Software may be incorporated.
|
|
*
|
|
* The Apple Software is provided by Apple on an "AS IS" basis. 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.
|
|
*
|
|
*/
|
|
/*=============================================================================
|
|
Dynamics2Mono.cpp
|
|
|
|
=============================================================================*/
|
|
#include "Dynamics2Mono.h"
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
AUDIOCOMPONENT_ENTRY(AUBaseFactory, Dynamics2Mono)
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::Dynamics2Mono
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
Dynamics2Mono::Dynamics2Mono(AudioUnit component)
|
|
: AUEffectBase(component)
|
|
{
|
|
CreateElements();
|
|
Globals()->UseIndexedParameters(kNumberOfParameters);
|
|
SetParameter(kParam_A, kDefaultValue_ParamA );
|
|
SetParameter(kParam_B, kDefaultValue_ParamB );
|
|
SetParameter(kParam_C, kDefaultValue_ParamC );
|
|
SetParameter(kParam_D, kDefaultValue_ParamD );
|
|
|
|
#if AU_DEBUG_DISPATCHER
|
|
mDebugDispatcher = new AUDebugDispatcher (this);
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::GetParameterValueStrings
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult Dynamics2Mono::GetParameterValueStrings(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
CFArrayRef * outStrings)
|
|
{
|
|
|
|
return kAudioUnitErr_InvalidProperty;
|
|
}
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::GetParameterInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult Dynamics2Mono::GetParameterInfo(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
AudioUnitParameterInfo &outParameterInfo )
|
|
{
|
|
ComponentResult result = noErr;
|
|
|
|
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
|
|
| kAudioUnitParameterFlag_IsReadable;
|
|
|
|
if (inScope == kAudioUnitScope_Global) {
|
|
switch(inParameterID)
|
|
{
|
|
case kParam_A:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterAName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamA;
|
|
break;
|
|
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;
|
|
default:
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
break;
|
|
}
|
|
} else {
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::GetPropertyInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult Dynamics2Mono::GetPropertyInfo (AudioUnitPropertyID inID,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement,
|
|
UInt32 & outDataSize,
|
|
Boolean & outWritable)
|
|
{
|
|
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::GetProperty
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult Dynamics2Mono::GetProperty( AudioUnitPropertyID inID,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement,
|
|
void * outData )
|
|
{
|
|
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
|
|
}
|
|
|
|
// Dynamics2Mono::Initialize
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult Dynamics2Mono::Initialize()
|
|
{
|
|
ComponentResult result = AUEffectBase::Initialize();
|
|
if (result == noErr)
|
|
Reset(kAudioUnitScope_Global, 0);
|
|
return result;
|
|
}
|
|
|
|
#pragma mark ____Dynamics2MonoEffectKernel
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::Dynamics2MonoKernel::Reset()
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
void Dynamics2Mono::Dynamics2MonoKernel::Reset()
|
|
{
|
|
for (int x = 0; x < bez_total; x++) {bezCompF[x] = 0.0;bezCompS[x] = 0.0;}
|
|
bezCompF[bez_cycle] = 1.0; bezMaxF = 0.0;
|
|
bezCompS[bez_cycle] = 1.0; bezGate = 2.0;
|
|
|
|
fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// Dynamics2Mono::Dynamics2MonoKernel::Process
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
void Dynamics2Mono::Dynamics2MonoKernel::Process( const Float32 *inSourceP,
|
|
Float32 *inDestP,
|
|
UInt32 inFramesToProcess,
|
|
UInt32 inNumChannels,
|
|
bool &ioSilence )
|
|
{
|
|
UInt32 nSampleFrames = inFramesToProcess;
|
|
const Float32 *sourceP = inSourceP;
|
|
Float32 *destP = inDestP;
|
|
double overallscale = 1.0;
|
|
overallscale /= 44100.0;
|
|
overallscale *= GetSampleRate();
|
|
|
|
double bezCThresh = pow(1.0-GetParameter( kParam_A ), 6.0) * 8.0;
|
|
double bezRez = pow(1.0-GetParameter( kParam_B ), 8.0) / overallscale;
|
|
double sloRez = pow(1.0-GetParameter( kParam_C ),12.0) / overallscale;
|
|
sloRez = fmin(fmax(sloRez-(bezRez*0.5),0.00001),1.0);
|
|
bezRez = fmin(fmax(bezRez,0.0001),1.0);
|
|
double gate = pow(pow(GetParameter( kParam_D ),4.0),sqrt(bezCThresh+1.0));
|
|
|
|
while (nSampleFrames-- > 0) {
|
|
double inputSampleL = *sourceP;
|
|
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpd * 1.18e-17;
|
|
|
|
if (fabs(inputSampleL) > gate+(sloRez*bezGate)) bezGate = ((bezGate*overallscale*3.0)+3.0)*(0.25/overallscale);
|
|
else bezGate = fmax(0.0, bezGate-(sloRez*sloRez));
|
|
|
|
if (bezCThresh > 0.0) inputSampleL *= ((bezCThresh*0.5)+1.0);
|
|
|
|
bezCompF[bez_cycle] += bezRez;
|
|
bezCompF[bez_SampL] += (fabs(inputSampleL) * bezRez);
|
|
bezMaxF = fmax(bezMaxF,fabs(inputSampleL));
|
|
if (bezCompF[bez_cycle] > 1.0) {
|
|
if (bezMaxF < gate) bezCompF[bez_SampL] = bezMaxF/gate; //note: SampL is a control voltage,
|
|
if (bezCompF[bez_SampL]<gate) bezCompF[bez_SampL] = 0.0; //not a bipolar audio signal
|
|
bezCompF[bez_cycle] -= 1.0;
|
|
bezCompF[bez_CL] = bezCompF[bez_BL];
|
|
bezCompF[bez_BL] = bezCompF[bez_AL];
|
|
bezCompF[bez_AL] = bezCompF[bez_SampL];
|
|
bezCompF[bez_SampL] = 0.0;
|
|
bezMaxF = 0.0;
|
|
}
|
|
bezCompS[bez_cycle] += sloRez;
|
|
bezCompS[bez_SampL] += (fabs(inputSampleL) * sloRez); //note: SampL is a control voltage.
|
|
if (bezCompS[bez_cycle] > 1.0) {
|
|
if (bezCompS[bez_SampL]<gate) bezCompS[bez_SampL] = 0.0;
|
|
bezCompS[bez_cycle] -= 1.0;
|
|
bezCompS[bez_CL] = bezCompS[bez_BL];
|
|
bezCompS[bez_BL] = bezCompS[bez_AL];
|
|
bezCompS[bez_AL] = bezCompS[bez_SampL];
|
|
bezCompS[bez_SampL] = 0.0;
|
|
}
|
|
double CBFL = (bezCompF[bez_CL]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_BL]*bezCompF[bez_cycle]);
|
|
double BAFL = (bezCompF[bez_BL]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_AL]*bezCompF[bez_cycle]);
|
|
double CBAFL = (bezCompF[bez_BL]+(CBFL*(1.0-bezCompF[bez_cycle]))+(BAFL*bezCompF[bez_cycle]))*0.5;
|
|
double CBSL = (bezCompS[bez_CL]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_BL]*bezCompS[bez_cycle]);
|
|
double BASL = (bezCompS[bez_BL]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_AL]*bezCompS[bez_cycle]);
|
|
double CBASL = (bezCompS[bez_BL]+(CBSL*(1.0-bezCompS[bez_cycle]))+(BASL*bezCompS[bez_cycle]))*0.5;
|
|
|
|
double CBAMax = fmax(CBASL,CBAFL); if (CBAMax > 0.0) CBAMax = 1.0/CBAMax;
|
|
double CBAFade = ((CBASL*-CBAMax)+(CBAFL*CBAMax)+1.0)*0.5;
|
|
|
|
if (bezCThresh > 0.0) inputSampleL *= 1.0-(fmin(((CBASL*(1.0-CBAFade))+(CBAFL*CBAFade))*bezCThresh,1.0));
|
|
|
|
if (bezGate < 1.0 && gate > 0.0) inputSampleL *= bezGate;
|
|
|
|
//begin 32 bit floating point dither
|
|
int expon; frexpf((float)inputSampleL, &expon);
|
|
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
|
|
inputSampleL += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
|
|
//end 32 bit floating point dither
|
|
|
|
*destP = inputSampleL;
|
|
|
|
sourceP += inNumChannels; destP += inNumChannels;
|
|
}
|
|
}
|
|
|