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airwindows/plugins/MacAU/ResEQ/ResEQ.cpp
Christopher Johnson f06250c082 Clarifying Licensing in boilerplate code generation
2022-11-21 09:20:21 -05:00

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/*
* File: ResEQ.cpp
*
* Version: 1.0
*
* Created: 8/1/07
*
* Copyright: Copyright © 2007 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.
*
*/
/*=============================================================================
ResEQ.h
=============================================================================*/
#include "ResEQ.h"
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
COMPONENT_ENTRY(ResEQ)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::ResEQ
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ResEQ::ResEQ(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 );
SetParameter(kParam_Six, kDefaultValue_ParamSix );
SetParameter(kParam_Seven, kDefaultValue_ParamSeven );
SetParameter(kParam_Eight, kDefaultValue_ParamEight );
SetParameter(kParam_Nine, kDefaultValue_ParamNine );
#if AU_DEBUG_DISPATCHER
mDebugDispatcher = new AUDebugDispatcher (this);
#endif
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::GetParameterValueStrings
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ResEQ::GetParameterValueStrings(AudioUnitScope inScope,
AudioUnitParameterID inParameterID,
CFArrayRef * outStrings)
{
return kAudioUnitErr_InvalidProperty;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::GetParameterInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ResEQ::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;
case kParam_Six:
AUBase::FillInParameterName (outParameterInfo, kParameterSixName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamSix;
break;
case kParam_Seven:
AUBase::FillInParameterName (outParameterInfo, kParameterSevenName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamSeven;
break;
case kParam_Eight:
AUBase::FillInParameterName (outParameterInfo, kParameterEightName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamEight;
break;
case kParam_Nine:
AUBase::FillInParameterName (outParameterInfo, kParameterNineName, false);
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
outParameterInfo.minValue = 0.0;
outParameterInfo.maxValue = 1.0;
outParameterInfo.defaultValue = kDefaultValue_ParamNine;
break;
default:
result = kAudioUnitErr_InvalidParameter;
break;
}
} else {
result = kAudioUnitErr_InvalidParameter;
}
return result;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::GetPropertyInfo
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ResEQ::GetPropertyInfo (AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
UInt32 & outDataSize,
Boolean & outWritable)
{
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::GetProperty
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ResEQ::GetProperty( AudioUnitPropertyID inID,
AudioUnitScope inScope,
AudioUnitElement inElement,
void * outData )
{
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::Initialize
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ComponentResult ResEQ::Initialize()
{
ComponentResult result = AUEffectBase::Initialize();
if (result == noErr)
Reset(kAudioUnitScope_Global, 0);
return result;
}
#pragma mark ____ResEQEffectKernel
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::ResEQKernel::Reset()
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ResEQ::ResEQKernel::Reset()
{
register UInt32 count;
for(count = 0; count < 60; count++) {b[count] = 0.0; f[count] = 0.0;}
framenumber = 0;
fpd = 1.0; while (fpd < 16386) fpd = rand()*UINT32_MAX;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// ResEQ::ResEQKernel::Process
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void ResEQ::ResEQKernel::Process( const Float32 *inSourceP,
Float32 *inDestP,
UInt32 inFramesToProcess,
UInt32 inNumChannels, // for version 2 AudioUnits inNumChannels is always 1
bool &ioSilence )
{
UInt32 nSampleFrames = inFramesToProcess;
const Float32 *sourceP = inSourceP;
Float32 *destP = inDestP;
Float64 overallscale = 1.0;
overallscale /= 44100.0;
overallscale *= GetSampleRate();
Float64 v1 = GetParameter( kParam_One );
Float64 v2 = GetParameter( kParam_Two );
Float64 v3 = GetParameter( kParam_Three );
Float64 v4 = GetParameter( kParam_Four );
Float64 v5 = GetParameter( kParam_Five );
Float64 v6 = GetParameter( kParam_Six );
Float64 v7 = GetParameter( kParam_Seven );
Float64 v8 = GetParameter( kParam_Eight );
Float64 f1 = pow(v1,2);
Float64 f2 = pow(v2,2);
Float64 f3 = pow(v3,2);
Float64 f4 = pow(v4,2);
Float64 f5 = pow(v5,2);
Float64 f6 = pow(v6,2);
Float64 f7 = pow(v7,2);
Float64 f8 = pow(v8,2);
Float64 wet = GetParameter( kParam_Nine );
Float64 falloff;
v1 += 0.2; v2 += 0.2; v3 += 0.2; v4 += 0.2; v5 += 0.2; v6 += 0.2; v7 += 0.2; v8 += 0.2;
v1 /= overallscale;
v2 /= overallscale;
v3 /= overallscale;
v4 /= overallscale;
v5 /= overallscale;
v6 /= overallscale;
v7 /= overallscale;
v8 /= overallscale;
//each process frame we'll update some of the kernel frames. That way we don't have to crunch the whole thing at once,
//and we can load a LOT more resonant peaks into the kernel.
//amount = 0.005 + (amount * 0.99);
//mAudioUnit->SetParameter( kParam_Nine, amount );
// mAudioUnit->Globals()->SetParameter( kParam_Nine, amount );
// AudioUnitParameter param;
// param.mAudioUnit = mAudioUnit->GetComponentInstance();
// param.mScope = kAudioUnitScope_Global;
// param.mParameterID = kParam_Nine;
// AUParameterListenerNotify( NULL, NULL, &param);
framenumber += 1; if (framenumber > 59) framenumber = 1;
falloff = sin(framenumber / 19.098992);
f[framenumber] = 0.0;
if ((framenumber * f1) < 1.57079633) f[framenumber] += (sin((framenumber * f1)*2.0) * falloff * v1);
else f[framenumber] += (cos(framenumber * f1) * falloff * v1);
if ((framenumber * f2) < 1.57079633) f[framenumber] += (sin((framenumber * f2)*2.0) * falloff * v2);
else f[framenumber] += (cos(framenumber * f2) * falloff * v2);
if ((framenumber * f3) < 1.57079633) f[framenumber] += (sin((framenumber * f3)*2.0) * falloff * v3);
else f[framenumber] += (cos(framenumber * f3) * falloff * v3);
if ((framenumber * f4) < 1.57079633) f[framenumber] += (sin((framenumber * f4)*2.0) * falloff * v4);
else f[framenumber] += (cos(framenumber * f4) * falloff * v4);
if ((framenumber * f5) < 1.57079633) f[framenumber] += (sin((framenumber * f5)*2.0) * falloff * v5);
else f[framenumber] += (cos(framenumber * f5) * falloff * v5);
if ((framenumber * f6) < 1.57079633) f[framenumber] += (sin((framenumber * f6)*2.0) * falloff * v6);
else f[framenumber] += (cos(framenumber * f6) * falloff * v6);
if ((framenumber * f7) < 1.57079633) f[framenumber] += (sin((framenumber * f7)*2.0) * falloff * v7);
else f[framenumber] += (cos(framenumber * f7) * falloff * v7);
if ((framenumber * f8) < 1.57079633) f[framenumber] += (sin((framenumber * f8)*2.0) * falloff * v8);
else f[framenumber] += (cos(framenumber * f8) * falloff * v8);
framenumber += 1; if (framenumber > 59) framenumber = 1;
falloff = sin(framenumber / 19.098992);
f[framenumber] = 0.0;
if ((framenumber * f1) < 1.57079633) f[framenumber] += (sin((framenumber * f1)*2.0) * falloff * v1);
else f[framenumber] += (cos(framenumber * f1) * falloff * v1);
if ((framenumber * f2) < 1.57079633) f[framenumber] += (sin((framenumber * f2)*2.0) * falloff * v2);
else f[framenumber] += (cos(framenumber * f2) * falloff * v2);
if ((framenumber * f3) < 1.57079633) f[framenumber] += (sin((framenumber * f3)*2.0) * falloff * v3);
else f[framenumber] += (cos(framenumber * f3) * falloff * v3);
if ((framenumber * f4) < 1.57079633) f[framenumber] += (sin((framenumber * f4)*2.0) * falloff * v4);
else f[framenumber] += (cos(framenumber * f4) * falloff * v4);
if ((framenumber * f5) < 1.57079633) f[framenumber] += (sin((framenumber * f5)*2.0) * falloff * v5);
else f[framenumber] += (cos(framenumber * f5) * falloff * v5);
if ((framenumber * f6) < 1.57079633) f[framenumber] += (sin((framenumber * f6)*2.0) * falloff * v6);
else f[framenumber] += (cos(framenumber * f6) * falloff * v6);
if ((framenumber * f7) < 1.57079633) f[framenumber] += (sin((framenumber * f7)*2.0) * falloff * v7);
else f[framenumber] += (cos(framenumber * f7) * falloff * v7);
if ((framenumber * f8) < 1.57079633) f[framenumber] += (sin((framenumber * f8)*2.0) * falloff * v8);
else f[framenumber] += (cos(framenumber * f8) * falloff * v8);
//done updating the kernel for this go-round
while (nSampleFrames-- > 0) {
double inputSample = *sourceP;
if (fabs(inputSample)<1.18e-23) inputSample = fpd * 1.18e-17;
double drySample = inputSample;
b[59] = b[58]; b[58] = b[57]; b[57] = b[56]; b[56] = b[55]; b[55] = b[54]; b[54] = b[53]; b[53] = b[52]; b[52] = b[51]; b[51] = b[50]; b[50] = b[49]; b[49] = b[48];
b[48] = b[47]; b[47] = b[46]; b[46] = b[45]; b[45] = b[44]; b[44] = b[43]; b[43] = b[42]; b[42] = b[41]; b[41] = b[40]; b[40] = b[39]; b[39] = b[38];
b[38] = b[37]; b[37] = b[36]; b[36] = b[35]; b[35] = b[34]; b[34] = b[33]; b[33] = b[32]; b[32] = b[31]; 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]; 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]; 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];
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;
inputSample = (b[1] * f[1]);
inputSample += (b[2] * f[2]);
inputSample += (b[3] * f[3]);
inputSample += (b[4] * f[4]);
inputSample += (b[5] * f[5]);
inputSample += (b[6] * f[6]);
inputSample += (b[7] * f[7]);
inputSample += (b[8] * f[8]);
inputSample += (b[9] * f[9]);
inputSample += (b[10] * f[10]);
inputSample += (b[11] * f[11]);
inputSample += (b[12] * f[12]);
inputSample += (b[13] * f[13]);
inputSample += (b[14] * f[14]);
inputSample += (b[15] * f[15]);
inputSample += (b[16] * f[16]);
inputSample += (b[17] * f[17]);
inputSample += (b[18] * f[18]);
inputSample += (b[19] * f[19]);
inputSample += (b[20] * f[20]);
inputSample += (b[21] * f[21]);
inputSample += (b[22] * f[22]);
inputSample += (b[23] * f[23]);
inputSample += (b[24] * f[24]);
inputSample += (b[25] * f[25]);
inputSample += (b[26] * f[26]);
inputSample += (b[27] * f[27]);
inputSample += (b[28] * f[28]);
inputSample += (b[29] * f[29]);
inputSample += (b[30] * f[30]);
inputSample += (b[31] * f[31]);
inputSample += (b[32] * f[32]);
inputSample += (b[33] * f[33]);
inputSample += (b[34] * f[34]);
inputSample += (b[35] * f[35]);
inputSample += (b[36] * f[36]);
inputSample += (b[37] * f[37]);
inputSample += (b[38] * f[38]);
inputSample += (b[39] * f[39]);
inputSample += (b[40] * f[40]);
inputSample += (b[41] * f[41]);
inputSample += (b[42] * f[42]);
inputSample += (b[43] * f[43]);
inputSample += (b[44] * f[44]);
inputSample += (b[45] * f[45]);
inputSample += (b[46] * f[46]);
inputSample += (b[47] * f[47]);
inputSample += (b[48] * f[48]);
inputSample += (b[49] * f[49]);
inputSample += (b[50] * f[50]);
inputSample += (b[51] * f[51]);
inputSample += (b[52] * f[52]);
inputSample += (b[53] * f[53]);
inputSample += (b[54] * f[54]);
inputSample += (b[55] * f[55]);
inputSample += (b[56] * f[56]);
inputSample += (b[57] * f[57]);
inputSample += (b[58] * f[58]);
inputSample += (b[59] * f[59]);
inputSample /= 12.0;
//inlined- this is our little EQ kernel. Longer will give better tightness on bass frequencies.
inputSample = (drySample*(1.0-wet))+(inputSample*wet);
//begin 32 bit floating point dither
int expon; frexpf((float)inputSample, &expon);
fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5;
inputSample += static_cast<int32_t>(fpd) * 5.960464655174751e-36L * pow(2,expon+62);
//end 32 bit floating point dither
*destP = inputSample;
sourceP += inNumChannels;
destP += inNumChannels;
}
}
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