github-starred/airwindows
2
0
Fork 0
mirror of https://github.com/airwindows/airwindows.git synced 2026-05-21 06:46:21 -06:00
Code Issues 33 Projects Packages Wiki Activity Actions
airwindows/plugins/MacSignedAU/MackEQ/MackEQ.cpp
Christopher Johnson f06250c082 Clarifying Licensing in boilerplate code generation
2022-11-21 09:20:21 -05:00

366 lines
16 KiB
C++
Raw Blame History

/*
* File: MackEQ.cpp
*
* Version: 1.0
*
* Created: 4/5/21
*
* Copyright: Copyright © 2021 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.
*
*/
/*=============================================================================
MackEQ.cpp
=============================================================================*/
#include "MackEQ.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AUDIOCOMPONENT_ENTRY(AUBaseFactory, MackEQ)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::MackEQ
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
MackEQ::MackEQ(AudioUnit component)
: AUEffectBase(component)
{
CreateElements();
Globals()->UseIndexedParameters(kNumberOfParameters);
SetParameter(kParam_One, kDefaultValue_ParamOne );
SetParameter(kParam_Two, kDefaultValue_ParamTwo );
SetParameter(kParam_Three, kDefaultValue_ParamThree );
SetParameter(kParam_Four, kDefaultValue_ParamFour );
SetParameter(kParam_Five, kDefaultValue_ParamFive );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult MackEQ::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult MackEQ::GetParameterInfo(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
AudioUnitParameterInfo &outParameterInfo )
{
ComponentResult result = noErr;
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
| kAudioUnitParameterFlag_IsReadable;
if (inScope == kAudioUnitScope_Global) {
switch(inParameterID)
{
case kParam_One:
AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamOne;
break;
case kParam_Two:
AUBase::FillInParameterName (outParameterInfo, kParameterTwoName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamTwo;
break;
case kParam_Three:
AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamThree;
break;
case kParam_Four:
AUBase::FillInParameterName (outParameterInfo, kParameterFourName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFour;
break;
case kParam_Five:
AUBase::FillInParameterName (outParameterInfo, kParameterFiveName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamFive;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult MackEQ::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult MackEQ::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
// MackEQ::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult MackEQ::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____MackEQEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::MackEQKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void MackEQ::MackEQKernel::Reset()
{
iirSampleA = 0.0;
iirSampleB = 0.0;
iirSampleC = 0.0;
iirSampleD = 0.0;
iirSampleE = 0.0;
iirSampleF = 0.0;
for (int x = 0; x < 11; x++) {biquadA[x] = 0.0; biquadB[x] = 0.0; biquadC[x] = 0.0; biquadD[x] = 0.0;}
fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// MackEQ::MackEQKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void MackEQ::MackEQKernel::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 inTrim = GetParameter( kParam_One )*10.0;
inTrim *= inTrim;
double gainHigh = pow(GetParameter( kParam_Two ),2)*4.0;
double outHigh = sqrt(GetParameter( kParam_Two ));
double gainBass = pow(GetParameter( kParam_Three ),2)*4.0;
double outBass = sqrt(GetParameter( kParam_Three ));
double outPad = GetParameter( kParam_Four );
double wet = GetParameter( kParam_Five );
double iirAmountA = 0.001860867/overallscale;
double iirAmountB = 0.000287496/overallscale;
double iirBassMid = 0.159/overallscale;
double iirMidHigh = 0.236/overallscale;
biquadD[0] = biquadC[0] = biquadB[0] = biquadA[0] = 19160.0 / GetSampleRate();
biquadA[1] = 0.431684981684982;
biquadB[1] = 1.1582298;
biquadC[1] = 0.657027382751269;
biquadD[1] = 1.076210852946577;
double K = tan(M_PI * biquadA[0]); //lowpass
double norm = 1.0 / (1.0 + K / biquadA[1] + K * K);
biquadA[2] = K * K * norm;
biquadA[3] = 2.0 * biquadA[2];
biquadA[4] = biquadA[2];
biquadA[5] = 2.0 * (K * K - 1.0) * norm;
biquadA[6] = (1.0 - K / biquadA[1] + K * K) * norm;
K = tan(M_PI * biquadB[0]);
norm = 1.0 / (1.0 + K / biquadB[1] + K * K);
biquadB[2] = K * K * norm;
biquadB[3] = 2.0 * biquadB[2];
biquadB[4] = biquadB[2];
biquadB[5] = 2.0 * (K * K - 1.0) * norm;
biquadB[6] = (1.0 - K / biquadB[1] + K * K) * norm;
K = tan(M_PI * biquadC[0]);
norm = 1.0 / (1.0 + K / biquadC[1] + K * K);
biquadC[2] = K * K * norm;
biquadC[3] = 2.0 * biquadC[2];
biquadC[4] = biquadC[2];
biquadC[5] = 2.0 * (K * K - 1.0) * norm;
biquadC[6] = (1.0 - K / biquadC[1] + K * K) * norm;
K = tan(M_PI * biquadD[0]);
norm = 1.0 / (1.0 + K / biquadD[1] + K * K);
biquadD[2] = K * K * norm;
biquadD[3] = 2.0 * biquadD[2];
biquadD[4] = biquadD[2];
biquadD[5] = 2.0 * (K * K - 1.0) * norm;
biquadD[6] = (1.0 - K / biquadD[1] + K * K) * norm;
while (nSampleFrames-- > 0) {
double inputSample = *sourceP;
if (fabs(inputSample)<1.18e-23) inputSample = fpd * 1.18e-17;
double drySample = inputSample;
if (fabs(iirSampleA)<1.18e-37) iirSampleA = 0.0;
iirSampleA = (iirSampleA * (1.0 - iirAmountA)) + (inputSample * iirAmountA);
inputSample -= iirSampleA;
if (inTrim != 1.0) inputSample *= inTrim;
//begin Mackity input stage
double outSample = biquadA[2]*inputSample+biquadA[3]*biquadA[7]+biquadA[4]*biquadA[8]-biquadA[5]*biquadA[9]-biquadA[6]*biquadA[10];
biquadA[8] = biquadA[7]; biquadA[7] = inputSample; inputSample = outSample; biquadA[10] = biquadA[9]; biquadA[9] = inputSample; //DF1
if (inputSample > 1.0) inputSample = 1.0;
if (inputSample < -1.0) inputSample = -1.0;
inputSample -= pow(inputSample,5)*0.1768;
outSample = biquadB[2]*inputSample+biquadB[3]*biquadB[7]+biquadB[4]*biquadB[8]-biquadB[5]*biquadB[9]-biquadB[6]*biquadB[10];
biquadB[8] = biquadB[7]; biquadB[7] = inputSample; inputSample = outSample; biquadB[10] = biquadB[9]; biquadB[9] = inputSample; //DF1
if (fabs(iirSampleB)<1.18e-37) iirSampleB = 0.0;
iirSampleB = (iirSampleB * (1.0 - iirAmountB)) + (inputSample * iirAmountB);
inputSample -= iirSampleB;
//end Mackity input stage
//begin EQ section
if (fabs(iirSampleC)<1.18e-37) iirSampleC = 0.0;
iirSampleC = (iirSampleC * (1.0 - iirBassMid)) + (inputSample * iirBassMid);
double bassSample = iirSampleC;
double midSample = inputSample - bassSample;
if (gainBass != 1.0) bassSample *= gainBass;
if (bassSample > 1.0) bassSample = 1.0;
if (bassSample < -1.0) bassSample = -1.0;
bassSample -= pow(bassSample,5)*0.1768;
if (fabs(iirSampleD)<1.18e-37) iirSampleD = 0.0;
iirSampleD = (iirSampleD * (1.0 - iirBassMid)) + (bassSample * iirBassMid);
bassSample = iirSampleD;
//we've taken the bass sample, made the mids from it, distorted it
//and hit it with another pole of darkening.
//mid sample is still normal from undistorted bass
if (fabs(iirSampleE)<1.18e-37) iirSampleE = 0.0;
iirSampleE = (iirSampleE * (1.0 - iirMidHigh)) + (midSample * iirMidHigh);
double highSample = midSample - iirSampleE;
midSample = iirSampleE;
//here is where we make the high sample out of the mid, and take highs
//away from the mid.
if (fabs(iirSampleF)<1.18e-37) iirSampleF = 0.0;
iirSampleF = (iirSampleF * (1.0 - iirMidHigh)) + (highSample * iirMidHigh);
highSample -= iirSampleF;
if (gainHigh != 1.0) highSample *= gainHigh;
if (highSample > 1.0) highSample = 1.0;
if (highSample < -1.0) highSample = -1.0;
highSample -= pow(highSample,5)*0.1768;
//highpassing HighSample another stage, before distorting it
inputSample = ((bassSample*outBass) + midSample + (highSample*outHigh))*4.0;
//end EQ section
outSample = biquadC[2]*inputSample+biquadC[3]*biquadC[7]+biquadC[4]*biquadC[8]-biquadC[5]*biquadC[9]-biquadC[6]*biquadC[10];
biquadC[8] = biquadC[7]; biquadC[7] = inputSample; inputSample = outSample; biquadC[10] = biquadC[9]; biquadC[9] = inputSample; //DF1
if (inputSample > 1.0) inputSample = 1.0;
if (inputSample < -1.0) inputSample = -1.0;
inputSample -= pow(inputSample,5)*0.1768;
outSample = biquadD[2]*inputSample+biquadD[3]*biquadD[7]+biquadD[4]*biquadD[8]-biquadD[5]*biquadD[9]-biquadD[6]*biquadD[10];
biquadD[8] = biquadD[7]; biquadD[7] = inputSample; inputSample = outSample; biquadD[10] = biquadD[9]; biquadD[9] = inputSample; //DF1
if (outPad != 1.0) inputSample *= outPad;
if (wet !=1.0) {
inputSample = (inputSample * wet) + (drySample * (1.0-wet));
}
//Dry/Wet control, defaults to the last slider
//begin 32 bit floating point dither
int expon; frexpf((float)inputSample, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSample += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
//end 32 bit floating point dither
*destP = inputSample;
sourceP += inNumChannels; destP += inNumChannels;
}
}
Reference in a new issue View git blame Copy permalink