mirror of
https://github.com/airwindows/airwindows.git
synced 2026-05-15 14:16:00 -06:00
724 lines
36 KiB
C++
Executable file
724 lines
36 KiB
C++
Executable file
/*
|
|
* File: ConsoleHBuss.cpp
|
|
*
|
|
* Version: 1.0
|
|
*
|
|
* Created: 11/4/25
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
/*=============================================================================
|
|
ConsoleHBuss.cpp
|
|
|
|
=============================================================================*/
|
|
#include "ConsoleHBuss.h"
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
COMPONENT_ENTRY(ConsoleHBuss)
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::ConsoleHBuss
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ConsoleHBuss::ConsoleHBuss(AudioUnit component)
|
|
: AUEffectBase(component)
|
|
{
|
|
CreateElements();
|
|
Globals()->UseIndexedParameters(kNumberOfParameters);
|
|
SetParameter(kParam_HIG, kDefaultValue_ParamHIG );
|
|
SetParameter(kParam_MID, kDefaultValue_ParamMID );
|
|
SetParameter(kParam_LOW, kDefaultValue_ParamLOW );
|
|
|
|
SetParameter(kParam_THR, kDefaultValue_ParamTHR );
|
|
|
|
SetParameter(kParam_LOP, kDefaultValue_ParamLOP );
|
|
SetParameter(kParam_HIP, kDefaultValue_ParamHIP );
|
|
|
|
SetParameter(kParam_PAN, kDefaultValue_ParamPAN );
|
|
SetParameter(kParam_FAD, kDefaultValue_ParamFAD );
|
|
|
|
#if AU_DEBUG_DISPATCHER
|
|
mDebugDispatcher = new AUDebugDispatcher (this);
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::GetParameterValueStrings
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::GetParameterValueStrings(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
CFArrayRef * outStrings)
|
|
{
|
|
|
|
return kAudioUnitErr_InvalidProperty;
|
|
}
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::GetParameterInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::GetParameterInfo(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
AudioUnitParameterInfo &outParameterInfo )
|
|
{
|
|
ComponentResult result = noErr;
|
|
|
|
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
|
|
| kAudioUnitParameterFlag_IsReadable;
|
|
|
|
if (inScope == kAudioUnitScope_Global) {
|
|
switch(inParameterID)
|
|
{
|
|
case kParam_HIG:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterHIGName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
|
|
outParameterInfo.unitName = kParameterHIGUnit;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamHIG;
|
|
break;
|
|
case kParam_MID:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterMIDName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamMID;
|
|
break;
|
|
case kParam_LOW:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterLOWName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamLOW;
|
|
break;
|
|
|
|
case kParam_THR:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterTHRName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
|
|
outParameterInfo.unitName = kParameterTHRUnit;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamTHR;
|
|
break;
|
|
|
|
case kParam_LOP:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterLOPName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_CustomUnit;
|
|
outParameterInfo.unitName = kParameterLOPUnit;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamLOP;
|
|
break;
|
|
case kParam_HIP:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterHIPName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamHIP;
|
|
break;
|
|
|
|
case kParam_PAN:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterPANName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamPAN;
|
|
break;
|
|
case kParam_FAD:
|
|
AUBase::FillInParameterName (outParameterInfo, kParameterFADName, false);
|
|
outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
|
|
outParameterInfo.minValue = 0.0;
|
|
outParameterInfo.maxValue = 1.0;
|
|
outParameterInfo.defaultValue = kDefaultValue_ParamFAD;
|
|
break;
|
|
|
|
default:
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
break;
|
|
}
|
|
} else {
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::GetPropertyInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::GetPropertyInfo (AudioUnitPropertyID inID,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement,
|
|
UInt32 & outDataSize,
|
|
Boolean & outWritable)
|
|
{
|
|
return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// state that plugin supports only stereo-in/stereo-out processing
|
|
UInt32 ConsoleHBuss::SupportedNumChannels(const AUChannelInfo ** outInfo)
|
|
{
|
|
if (outInfo != NULL)
|
|
{
|
|
static AUChannelInfo info;
|
|
info.inChannels = 2;
|
|
info.outChannels = 2;
|
|
*outInfo = &info;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::GetProperty
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::GetProperty( AudioUnitPropertyID inID,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement,
|
|
void * outData )
|
|
{
|
|
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
|
|
}
|
|
|
|
// ConsoleHBuss::Initialize
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::Initialize()
|
|
{
|
|
ComponentResult result = AUEffectBase::Initialize();
|
|
if (result == noErr)
|
|
Reset(kAudioUnitScope_Global, 0);
|
|
return result;
|
|
}
|
|
|
|
#pragma mark ____ConsoleHBussEffectKernel
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::ConsoleHBussKernel::Reset()
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult ConsoleHBuss::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
|
|
{
|
|
for (int x = 0; x < biq_total; x++) {
|
|
highFast[x] = 0.0;
|
|
lowFast[x] = 0.0;
|
|
}
|
|
highFastLIIR = 0.0;
|
|
highFastRIIR = 0.0;
|
|
lowFastLIIR = 0.0;
|
|
lowFastRIIR = 0.0;
|
|
//SmoothEQ3
|
|
|
|
for (int x = 0; x < bez_total; x++) {bezCompF[x] = 0.0;bezCompS[x] = 0.0;}
|
|
bezCompF[bez_cycle] = 1.0;
|
|
bezCompS[bez_cycle] = 1.0;
|
|
//Dynamics2
|
|
|
|
for (int x = 0; x < hilp_total; x++) {
|
|
highpass[x] = 0.0;
|
|
lowpass[x] = 0.0;
|
|
}
|
|
|
|
for (int x = 0; x < 33; x++) {avg32L[x] = 0.0; avg32R[x] = 0.0;}
|
|
for (int x = 0; x < 17; x++) {avg16L[x] = 0.0; avg16R[x] = 0.0;}
|
|
for (int x = 0; x < 9; x++) {avg8L[x] = 0.0; avg8R[x] = 0.0;}
|
|
for (int x = 0; x < 5; x++) {avg4L[x] = 0.0; avg4R[x] = 0.0;}
|
|
for (int x = 0; x < 3; x++) {avg2L[x] = 0.0; avg2R[x] = 0.0;}
|
|
avgPos = 0;
|
|
lastSlewL = 0.0; lastSlewR = 0.0;
|
|
lastSlewpleL = 0.0; lastSlewpleR = 0.0;
|
|
//preTapeHack
|
|
|
|
panA = 0.5; panB = 0.5;
|
|
inTrimA = 0.5; inTrimB = 0.5;
|
|
|
|
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
|
|
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
|
|
return noErr;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// ConsoleHBuss::ProcessBufferLists
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
OSStatus ConsoleHBuss::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFlags,
|
|
const AudioBufferList & inBuffer,
|
|
AudioBufferList & outBuffer,
|
|
UInt32 inFramesToProcess)
|
|
{
|
|
Float32 * inputL = (Float32*)(inBuffer.mBuffers[0].mData);
|
|
Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData);
|
|
Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData);
|
|
Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData);
|
|
UInt32 nSampleFrames = inFramesToProcess;
|
|
double overallscale = 1.0;
|
|
overallscale /= 44100.0;
|
|
overallscale *= GetSampleRate();
|
|
int spacing = floor(overallscale*2.0);
|
|
if (spacing < 2) spacing = 2; if (spacing > 32) spacing = 32;
|
|
|
|
double trebleGain = (GetParameter( kParam_HIG )-0.5)*2.0;
|
|
trebleGain = 1.0+(trebleGain*fabs(trebleGain)*fabs(trebleGain));
|
|
double midGain = (GetParameter( kParam_MID )-0.5)*2.0;
|
|
midGain = 1.0+(midGain*fabs(midGain)*fabs(midGain));
|
|
double bassGain = (GetParameter( kParam_LOW )-0.5)*2.0;
|
|
bassGain = 1.0+(bassGain*fabs(bassGain)*fabs(bassGain));
|
|
//separate from filtering stage, this is amplitude, centered on 1.0 unity gain
|
|
double highCoef = 0.0;
|
|
double lowCoef = 0.0;
|
|
double omega = 0.0;
|
|
double biqK = 0.0;
|
|
double norm = 0.0;
|
|
|
|
bool eqOff = (trebleGain == 1.0 && midGain == 1.0 && bassGain == 1.0);
|
|
//we get to completely bypass EQ if we're truly not using it. The mechanics of it mean that
|
|
//it cancels out to bit-identical anyhow, but we get to skip the calculation
|
|
if (!eqOff) {
|
|
//SmoothEQ3 is how to get 3rd order steepness at very low CPU.
|
|
//because sample rate varies, you could also vary the crossovers
|
|
//you can't vary Q because math is simplified to take advantage of
|
|
//how the accurate Q value for this filter is always exactly 1.0.
|
|
highFast[biq_freq] = (4000.0/GetSampleRate());
|
|
omega = 2.0*M_PI*(4000.0/GetSampleRate()); //mid-high crossover freq
|
|
biqK = 2.0 - cos(omega);
|
|
highCoef = -sqrt(biqK*biqK - 1.0) + biqK;
|
|
lowFast[biq_freq] = (200.0/GetSampleRate());
|
|
omega = 2.0*M_PI*(200.0/GetSampleRate()); //low-mid crossover freq
|
|
biqK = 2.0 - cos(omega);
|
|
lowCoef = -sqrt(biqK*biqK - 1.0) + biqK;
|
|
//exponential IIR filter as part of an accurate 3rd order Butterworth filter
|
|
biqK = tan(M_PI * highFast[biq_freq]);
|
|
norm = 1.0 / (1.0 + biqK + biqK*biqK);
|
|
highFast[biq_a0] = biqK * biqK * norm;
|
|
highFast[biq_a1] = 2.0 * highFast[biq_a0];
|
|
highFast[biq_a2] = highFast[biq_a0];
|
|
highFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm;
|
|
highFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm;
|
|
biqK = tan(M_PI * lowFast[biq_freq]);
|
|
norm = 1.0 / (1.0 + biqK + biqK*biqK);
|
|
lowFast[biq_a0] = biqK * biqK * norm;
|
|
lowFast[biq_a1] = 2.0 * lowFast[biq_a0];
|
|
lowFast[biq_a2] = lowFast[biq_a0];
|
|
lowFast[biq_b1] = 2.0 * (biqK*biqK - 1.0) * norm;
|
|
lowFast[biq_b2] = (1.0 - biqK + biqK*biqK) * norm;
|
|
//custom biquad setup with Q = 1.0 gets to omit some divides
|
|
}
|
|
//SmoothEQ3
|
|
|
|
double bezCThresh = pow(1.0-GetParameter( kParam_THR ), 6.0) * 8.0;
|
|
double bezRez = pow(1.0-GetParameter( kParam_THR ), 12.360679774997898) / overallscale;
|
|
double sloRez = pow(1.0-GetParameter( kParam_THR ),10.0) / overallscale;
|
|
sloRez = fmin(fmax(sloRez,0.00001),1.0);
|
|
bezRez = fmin(fmax(bezRez,0.00001),1.0);
|
|
//Dynamics2
|
|
|
|
highpass[hilp_freq] = ((pow(GetParameter( kParam_HIP ),3)*24000.0)+10.0)/GetSampleRate();
|
|
if (highpass[hilp_freq] > 0.495) highpass[hilp_freq] = 0.495;
|
|
bool highpassEngage = true; if (GetParameter( kParam_HIP ) == 0.0) highpassEngage = false;
|
|
|
|
lowpass[hilp_freq] = ((pow(GetParameter( kParam_LOP ),3)*24000.0)+10.0)/GetSampleRate();
|
|
if (lowpass[hilp_freq] > 0.495) lowpass[hilp_freq] = 0.495;
|
|
bool lowpassEngage = true; if (GetParameter( kParam_LOP ) == 1.0) lowpassEngage = false;
|
|
|
|
highpass[hilp_aA0] = highpass[hilp_aB0];
|
|
highpass[hilp_aA1] = highpass[hilp_aB1];
|
|
highpass[hilp_bA1] = highpass[hilp_bB1];
|
|
highpass[hilp_bA2] = highpass[hilp_bB2];
|
|
highpass[hilp_cA0] = highpass[hilp_cB0];
|
|
highpass[hilp_cA1] = highpass[hilp_cB1];
|
|
highpass[hilp_dA1] = highpass[hilp_dB1];
|
|
highpass[hilp_dA2] = highpass[hilp_dB2];
|
|
highpass[hilp_eA0] = highpass[hilp_eB0];
|
|
highpass[hilp_eA1] = highpass[hilp_eB1];
|
|
highpass[hilp_fA1] = highpass[hilp_fB1];
|
|
highpass[hilp_fA2] = highpass[hilp_fB2];
|
|
lowpass[hilp_aA0] = lowpass[hilp_aB0];
|
|
lowpass[hilp_aA1] = lowpass[hilp_aB1];
|
|
lowpass[hilp_bA1] = lowpass[hilp_bB1];
|
|
lowpass[hilp_bA2] = lowpass[hilp_bB2];
|
|
lowpass[hilp_cA0] = lowpass[hilp_cB0];
|
|
lowpass[hilp_cA1] = lowpass[hilp_cB1];
|
|
lowpass[hilp_dA1] = lowpass[hilp_dB1];
|
|
lowpass[hilp_dA2] = lowpass[hilp_dB2];
|
|
lowpass[hilp_eA0] = lowpass[hilp_eB0];
|
|
lowpass[hilp_eA1] = lowpass[hilp_eB1];
|
|
lowpass[hilp_fA1] = lowpass[hilp_fB1];
|
|
lowpass[hilp_fA2] = lowpass[hilp_fB2];
|
|
//previous run through the buffer is still in the filter, so we move it
|
|
//to the A section and now it's the new starting point.
|
|
//On the buss, highpass and lowpass are isolators meant to be moved,
|
|
//so they are interpolated where the channels are not
|
|
|
|
biqK = tan(M_PI * highpass[hilp_freq]); //highpass
|
|
norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK);
|
|
highpass[hilp_aB0] = norm;
|
|
highpass[hilp_aB1] = -2.0 * highpass[hilp_aB0];
|
|
highpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
highpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm;
|
|
norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK);
|
|
highpass[hilp_cB0] = norm;
|
|
highpass[hilp_cB1] = -2.0 * highpass[hilp_cB0];
|
|
highpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
highpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm;
|
|
norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK);
|
|
highpass[hilp_eB0] = norm;
|
|
highpass[hilp_eB1] = -2.0 * highpass[hilp_eB0];
|
|
highpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
highpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm;
|
|
|
|
biqK = tan(M_PI * lowpass[hilp_freq]); //lowpass
|
|
norm = 1.0 / (1.0 + biqK / 1.93185165 + biqK * biqK);
|
|
lowpass[hilp_aB0] = biqK * biqK * norm;
|
|
lowpass[hilp_aB1] = 2.0 * lowpass[hilp_aB0];
|
|
lowpass[hilp_bB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
lowpass[hilp_bB2] = (1.0 - biqK / 1.93185165 + biqK * biqK) * norm;
|
|
norm = 1.0 / (1.0 + biqK / 0.70710678 + biqK * biqK);
|
|
lowpass[hilp_cB0] = biqK * biqK * norm;
|
|
lowpass[hilp_cB1] = 2.0 * lowpass[hilp_cB0];
|
|
lowpass[hilp_dB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
lowpass[hilp_dB2] = (1.0 - biqK / 0.70710678 + biqK * biqK) * norm;
|
|
norm = 1.0 / (1.0 + biqK / 0.51763809 + biqK * biqK);
|
|
lowpass[hilp_eB0] = biqK * biqK * norm;
|
|
lowpass[hilp_eB1] = 2.0 * lowpass[hilp_eB0];
|
|
lowpass[hilp_fB1] = 2.0 * (biqK * biqK - 1.0) * norm;
|
|
lowpass[hilp_fB2] = (1.0 - biqK / 0.51763809 + biqK * biqK) * norm;
|
|
|
|
if (highpass[hilp_aA0] == 0.0) { // if we have just started, start directly with raw info
|
|
highpass[hilp_aA0] = highpass[hilp_aB0];
|
|
highpass[hilp_aA1] = highpass[hilp_aB1];
|
|
highpass[hilp_bA1] = highpass[hilp_bB1];
|
|
highpass[hilp_bA2] = highpass[hilp_bB2];
|
|
highpass[hilp_cA0] = highpass[hilp_cB0];
|
|
highpass[hilp_cA1] = highpass[hilp_cB1];
|
|
highpass[hilp_dA1] = highpass[hilp_dB1];
|
|
highpass[hilp_dA2] = highpass[hilp_dB2];
|
|
highpass[hilp_eA0] = highpass[hilp_eB0];
|
|
highpass[hilp_eA1] = highpass[hilp_eB1];
|
|
highpass[hilp_fA1] = highpass[hilp_fB1];
|
|
highpass[hilp_fA2] = highpass[hilp_fB2];
|
|
lowpass[hilp_aA0] = lowpass[hilp_aB0];
|
|
lowpass[hilp_aA1] = lowpass[hilp_aB1];
|
|
lowpass[hilp_bA1] = lowpass[hilp_bB1];
|
|
lowpass[hilp_bA2] = lowpass[hilp_bB2];
|
|
lowpass[hilp_cA0] = lowpass[hilp_cB0];
|
|
lowpass[hilp_cA1] = lowpass[hilp_cB1];
|
|
lowpass[hilp_dA1] = lowpass[hilp_dB1];
|
|
lowpass[hilp_dA2] = lowpass[hilp_dB2];
|
|
lowpass[hilp_eA0] = lowpass[hilp_eB0];
|
|
lowpass[hilp_eA1] = lowpass[hilp_eB1];
|
|
lowpass[hilp_fA1] = lowpass[hilp_fB1];
|
|
lowpass[hilp_fA2] = lowpass[hilp_fB2];
|
|
}
|
|
|
|
panA = panB; panB = GetParameter( kParam_PAN )*1.57079633;
|
|
inTrimA = inTrimB; inTrimB = GetParameter( kParam_FAD )*2.0;
|
|
//Console
|
|
|
|
while (nSampleFrames-- > 0) {
|
|
double inputSampleL = *inputL;
|
|
double inputSampleR = *inputR;
|
|
if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
|
|
if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
|
|
|
|
const double temp = (double)nSampleFrames/inFramesToProcess;
|
|
highpass[hilp_a0] = (highpass[hilp_aA0]*temp)+(highpass[hilp_aB0]*(1.0-temp));
|
|
highpass[hilp_a1] = (highpass[hilp_aA1]*temp)+(highpass[hilp_aB1]*(1.0-temp));
|
|
highpass[hilp_b1] = (highpass[hilp_bA1]*temp)+(highpass[hilp_bB1]*(1.0-temp));
|
|
highpass[hilp_b2] = (highpass[hilp_bA2]*temp)+(highpass[hilp_bB2]*(1.0-temp));
|
|
highpass[hilp_c0] = (highpass[hilp_cA0]*temp)+(highpass[hilp_cB0]*(1.0-temp));
|
|
highpass[hilp_c1] = (highpass[hilp_cA1]*temp)+(highpass[hilp_cB1]*(1.0-temp));
|
|
highpass[hilp_d1] = (highpass[hilp_dA1]*temp)+(highpass[hilp_dB1]*(1.0-temp));
|
|
highpass[hilp_d2] = (highpass[hilp_dA2]*temp)+(highpass[hilp_dB2]*(1.0-temp));
|
|
highpass[hilp_e0] = (highpass[hilp_eA0]*temp)+(highpass[hilp_eB0]*(1.0-temp));
|
|
highpass[hilp_e1] = (highpass[hilp_eA1]*temp)+(highpass[hilp_eB1]*(1.0-temp));
|
|
highpass[hilp_f1] = (highpass[hilp_fA1]*temp)+(highpass[hilp_fB1]*(1.0-temp));
|
|
highpass[hilp_f2] = (highpass[hilp_fA2]*temp)+(highpass[hilp_fB2]*(1.0-temp));
|
|
lowpass[hilp_a0] = (lowpass[hilp_aA0]*temp)+(lowpass[hilp_aB0]*(1.0-temp));
|
|
lowpass[hilp_a1] = (lowpass[hilp_aA1]*temp)+(lowpass[hilp_aB1]*(1.0-temp));
|
|
lowpass[hilp_b1] = (lowpass[hilp_bA1]*temp)+(lowpass[hilp_bB1]*(1.0-temp));
|
|
lowpass[hilp_b2] = (lowpass[hilp_bA2]*temp)+(lowpass[hilp_bB2]*(1.0-temp));
|
|
lowpass[hilp_c0] = (lowpass[hilp_cA0]*temp)+(lowpass[hilp_cB0]*(1.0-temp));
|
|
lowpass[hilp_c1] = (lowpass[hilp_cA1]*temp)+(lowpass[hilp_cB1]*(1.0-temp));
|
|
lowpass[hilp_d1] = (lowpass[hilp_dA1]*temp)+(lowpass[hilp_dB1]*(1.0-temp));
|
|
lowpass[hilp_d2] = (lowpass[hilp_dA2]*temp)+(lowpass[hilp_dB2]*(1.0-temp));
|
|
lowpass[hilp_e0] = (lowpass[hilp_eA0]*temp)+(lowpass[hilp_eB0]*(1.0-temp));
|
|
lowpass[hilp_e1] = (lowpass[hilp_eA1]*temp)+(lowpass[hilp_eB1]*(1.0-temp));
|
|
lowpass[hilp_f1] = (lowpass[hilp_fA1]*temp)+(lowpass[hilp_fB1]*(1.0-temp));
|
|
lowpass[hilp_f2] = (lowpass[hilp_fA2]*temp)+(lowpass[hilp_fB2]*(1.0-temp));
|
|
|
|
|
|
if (highpassEngage) { //distributed Highpass
|
|
highpass[hilp_temp] = (inputSampleL*highpass[hilp_a0])+highpass[hilp_aL1];
|
|
highpass[hilp_aL1] = (inputSampleL*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aL2];
|
|
highpass[hilp_aL2] = (inputSampleL*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleL = highpass[hilp_temp];
|
|
highpass[hilp_temp] = (inputSampleR*highpass[hilp_a0])+highpass[hilp_aR1];
|
|
highpass[hilp_aR1] = (inputSampleR*highpass[hilp_a1])-(highpass[hilp_temp]*highpass[hilp_b1])+highpass[hilp_aR2];
|
|
highpass[hilp_aR2] = (inputSampleR*highpass[hilp_a0])-(highpass[hilp_temp]*highpass[hilp_b2]); inputSampleR = highpass[hilp_temp];
|
|
} else highpass[hilp_aR1] = highpass[hilp_aR2] = highpass[hilp_aL1] = highpass[hilp_aL2] = 0.0;
|
|
if (lowpassEngage) { //distributed Lowpass
|
|
lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_a0])+lowpass[hilp_aL1];
|
|
lowpass[hilp_aL1] = (inputSampleL*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aL2];
|
|
lowpass[hilp_aL2] = (inputSampleL*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleL = lowpass[hilp_temp];
|
|
lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_a0])+lowpass[hilp_aR1];
|
|
lowpass[hilp_aR1] = (inputSampleR*lowpass[hilp_a1])-(lowpass[hilp_temp]*lowpass[hilp_b1])+lowpass[hilp_aR2];
|
|
lowpass[hilp_aR2] = (inputSampleR*lowpass[hilp_a0])-(lowpass[hilp_temp]*lowpass[hilp_b2]); inputSampleR = lowpass[hilp_temp];
|
|
} else lowpass[hilp_aR1] = lowpass[hilp_aR2] = lowpass[hilp_aL1] = lowpass[hilp_aL2] = 0.0;
|
|
//first Highpass/Lowpass blocks aliasing before the nonlinearity of ConsoleXBuss and Parametric
|
|
|
|
if (inputSampleL > 1.0) inputSampleL = 1.0;
|
|
else if (inputSampleL > 0.0) inputSampleL = -expm1((log1p(-inputSampleL) * 0.6180339887498949));
|
|
if (inputSampleL < -1.0) inputSampleL = -1.0;
|
|
else if (inputSampleL < 0.0) inputSampleL = expm1((log1p(inputSampleL) * 0.6180339887498949));
|
|
|
|
if (inputSampleR > 1.0) inputSampleR = 1.0;
|
|
else if (inputSampleR > 0.0) inputSampleR = -expm1((log1p(-inputSampleR) * 0.6180339887498949));
|
|
if (inputSampleR < -1.0) inputSampleR = -1.0;
|
|
else if (inputSampleR < 0.0) inputSampleR = expm1((log1p(inputSampleR) * 0.6180339887498949));
|
|
|
|
if (highpassEngage) { //distributed Highpass
|
|
highpass[hilp_temp] = (inputSampleL*highpass[hilp_c0])+highpass[hilp_cL1];
|
|
highpass[hilp_cL1] = (inputSampleL*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cL2];
|
|
highpass[hilp_cL2] = (inputSampleL*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleL = highpass[hilp_temp];
|
|
highpass[hilp_temp] = (inputSampleR*highpass[hilp_c0])+highpass[hilp_cR1];
|
|
highpass[hilp_cR1] = (inputSampleR*highpass[hilp_c1])-(highpass[hilp_temp]*highpass[hilp_d1])+highpass[hilp_cR2];
|
|
highpass[hilp_cR2] = (inputSampleR*highpass[hilp_c0])-(highpass[hilp_temp]*highpass[hilp_d2]); inputSampleR = highpass[hilp_temp];
|
|
} else highpass[hilp_cR1] = highpass[hilp_cR2] = highpass[hilp_cL1] = highpass[hilp_cL2] = 0.0;
|
|
if (lowpassEngage) { //distributed Lowpass
|
|
lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_c0])+lowpass[hilp_cL1];
|
|
lowpass[hilp_cL1] = (inputSampleL*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cL2];
|
|
lowpass[hilp_cL2] = (inputSampleL*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleL = lowpass[hilp_temp];
|
|
lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_c0])+lowpass[hilp_cR1];
|
|
lowpass[hilp_cR1] = (inputSampleR*lowpass[hilp_c1])-(lowpass[hilp_temp]*lowpass[hilp_d1])+lowpass[hilp_cR2];
|
|
lowpass[hilp_cR2] = (inputSampleR*lowpass[hilp_c0])-(lowpass[hilp_temp]*lowpass[hilp_d2]); inputSampleR = lowpass[hilp_temp];
|
|
} else lowpass[hilp_cR1] = lowpass[hilp_cR2] = lowpass[hilp_cL1] = lowpass[hilp_cL2] = 0.0;
|
|
//another stage of Highpass/Lowpass before bringing in the parametric bands
|
|
|
|
if (!eqOff) {
|
|
double trebleFastL = inputSampleL;
|
|
double outSample = (trebleFastL * highFast[biq_a0]) + highFast[biq_sL1];
|
|
highFast[biq_sL1] = (trebleFastL * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sL2];
|
|
highFast[biq_sL2] = (trebleFastL * highFast[biq_a2]) - (outSample * highFast[biq_b2]);
|
|
double midFastL = outSample; trebleFastL -= midFastL;
|
|
outSample = (midFastL * lowFast[biq_a0]) + lowFast[biq_sL1];
|
|
lowFast[biq_sL1] = (midFastL * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sL2];
|
|
lowFast[biq_sL2] = (midFastL * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]);
|
|
double bassFastL = outSample; midFastL -= bassFastL;
|
|
trebleFastL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain);
|
|
//first stage of two crossovers is biquad of exactly 1.0 Q
|
|
highFastLIIR = (highFastLIIR*highCoef) + (trebleFastL*(1.0-highCoef));
|
|
midFastL = highFastLIIR; trebleFastL -= midFastL;
|
|
lowFastLIIR = (lowFastLIIR*lowCoef) + (midFastL*(1.0-lowCoef));
|
|
bassFastL = lowFastLIIR; midFastL -= bassFastL;
|
|
inputSampleL = (bassFastL*bassGain) + (midFastL*midGain) + (trebleFastL*trebleGain);
|
|
//second stage of two crossovers is the exponential filters
|
|
//this produces a slightly steeper Butterworth filter very cheaply
|
|
double trebleFastR = inputSampleR;
|
|
outSample = (trebleFastR * highFast[biq_a0]) + highFast[biq_sR1];
|
|
highFast[biq_sR1] = (trebleFastR * highFast[biq_a1]) - (outSample * highFast[biq_b1]) + highFast[biq_sR2];
|
|
highFast[biq_sR2] = (trebleFastR * highFast[biq_a2]) - (outSample * highFast[biq_b2]);
|
|
double midFastR = outSample; trebleFastR -= midFastR;
|
|
outSample = (midFastR * lowFast[biq_a0]) + lowFast[biq_sR1];
|
|
lowFast[biq_sR1] = (midFastR * lowFast[biq_a1]) - (outSample * lowFast[biq_b1]) + lowFast[biq_sR2];
|
|
lowFast[biq_sR2] = (midFastR * lowFast[biq_a2]) - (outSample * lowFast[biq_b2]);
|
|
double bassFastR = outSample; midFastR -= bassFastR;
|
|
trebleFastR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain);
|
|
//first stage of two crossovers is biquad of exactly 1.0 Q
|
|
highFastRIIR = (highFastRIIR*highCoef) + (trebleFastR*(1.0-highCoef));
|
|
midFastR = highFastRIIR; trebleFastR -= midFastR;
|
|
lowFastRIIR = (lowFastRIIR*lowCoef) + (midFastR*(1.0-lowCoef));
|
|
bassFastR = lowFastRIIR; midFastR -= bassFastR;
|
|
inputSampleR = (bassFastR*bassGain) + (midFastR*midGain) + (trebleFastR*trebleGain);
|
|
//second stage of two crossovers is the exponential filters
|
|
//this produces a slightly steeper Butterworth filter very cheaply
|
|
}
|
|
//SmoothEQ3
|
|
|
|
if (bezCThresh > 0.0) {
|
|
inputSampleL *= ((bezCThresh*0.5)+1.0);
|
|
inputSampleR *= ((bezCThresh*0.5)+1.0);
|
|
bezCompF[bez_cycle] += bezRez;
|
|
bezCompF[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * bezRez);
|
|
if (bezCompF[bez_cycle] > 1.0) {
|
|
bezCompF[bez_cycle] -= 1.0;
|
|
bezCompF[bez_C] = bezCompF[bez_B];
|
|
bezCompF[bez_B] = bezCompF[bez_A];
|
|
bezCompF[bez_A] = bezCompF[bez_Ctrl];
|
|
bezCompF[bez_Ctrl] = 0.0;
|
|
}
|
|
bezCompS[bez_cycle] += sloRez;
|
|
bezCompS[bez_Ctrl] += (fmax(fabs(inputSampleL),fabs(inputSampleR)) * sloRez);
|
|
if (bezCompS[bez_cycle] > 1.0) {
|
|
bezCompS[bez_cycle] -= 1.0;
|
|
bezCompS[bez_C] = bezCompS[bez_B];
|
|
bezCompS[bez_B] = bezCompS[bez_A];
|
|
bezCompS[bez_A] = bezCompS[bez_Ctrl];
|
|
bezCompS[bez_Ctrl] = 0.0;
|
|
}
|
|
double CBF = (bezCompF[bez_C]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_B]*bezCompF[bez_cycle]);
|
|
double BAF = (bezCompF[bez_B]*(1.0-bezCompF[bez_cycle]))+(bezCompF[bez_A]*bezCompF[bez_cycle]);
|
|
double CBAF = (bezCompF[bez_B]+(CBF*(1.0-bezCompF[bez_cycle]))+(BAF*bezCompF[bez_cycle]))*0.5;
|
|
double CBS = (bezCompS[bez_C]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_B]*bezCompS[bez_cycle]);
|
|
double BAS = (bezCompS[bez_B]*(1.0-bezCompS[bez_cycle]))+(bezCompS[bez_A]*bezCompS[bez_cycle]);
|
|
double CBAS = (bezCompS[bez_B]+(CBS*(1.0-bezCompS[bez_cycle]))+(BAS*bezCompS[bez_cycle]))*0.5;
|
|
double CBAMax = fmax(CBAS,CBAF); if (CBAMax > 0.0) CBAMax = 1.0/CBAMax;
|
|
double CBAFade = ((CBAS*-CBAMax)+(CBAF*CBAMax)+1.0)*0.5;
|
|
inputSampleL *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0));
|
|
inputSampleR *= 1.0-(fmin(((CBAS*(1.0-CBAFade))+(CBAF*CBAFade))*bezCThresh,1.0));
|
|
} else {bezCompF[bez_Ctrl] = 0.0; bezCompS[bez_Ctrl] = 0.0;}
|
|
//Dynamics2 custom version for buss
|
|
|
|
if (highpassEngage) { //distributed Highpass
|
|
highpass[hilp_temp] = (inputSampleL*highpass[hilp_e0])+highpass[hilp_eL1];
|
|
highpass[hilp_eL1] = (inputSampleL*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eL2];
|
|
highpass[hilp_eL2] = (inputSampleL*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleL = highpass[hilp_temp];
|
|
highpass[hilp_temp] = (inputSampleR*highpass[hilp_e0])+highpass[hilp_eR1];
|
|
highpass[hilp_eR1] = (inputSampleR*highpass[hilp_e1])-(highpass[hilp_temp]*highpass[hilp_f1])+highpass[hilp_eR2];
|
|
highpass[hilp_eR2] = (inputSampleR*highpass[hilp_e0])-(highpass[hilp_temp]*highpass[hilp_f2]); inputSampleR = highpass[hilp_temp];
|
|
} else highpass[hilp_eR1] = highpass[hilp_eR2] = highpass[hilp_eL1] = highpass[hilp_eL2] = 0.0;
|
|
if (lowpassEngage) { //distributed Lowpass
|
|
lowpass[hilp_temp] = (inputSampleL*lowpass[hilp_e0])+lowpass[hilp_eL1];
|
|
lowpass[hilp_eL1] = (inputSampleL*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eL2];
|
|
lowpass[hilp_eL2] = (inputSampleL*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleL = lowpass[hilp_temp];
|
|
lowpass[hilp_temp] = (inputSampleR*lowpass[hilp_e0])+lowpass[hilp_eR1];
|
|
lowpass[hilp_eR1] = (inputSampleR*lowpass[hilp_e1])-(lowpass[hilp_temp]*lowpass[hilp_f1])+lowpass[hilp_eR2];
|
|
lowpass[hilp_eR2] = (inputSampleR*lowpass[hilp_e0])-(lowpass[hilp_temp]*lowpass[hilp_f2]); inputSampleR = lowpass[hilp_temp];
|
|
} else lowpass[hilp_eR1] = lowpass[hilp_eR2] = lowpass[hilp_eL1] = lowpass[hilp_eL2] = 0.0;
|
|
//final Highpass/Lowpass continues to address aliasing
|
|
//final stacked biquad section is the softest Q for smoothness
|
|
|
|
double gainR = (panA*temp)+(panB*(1.0-temp));
|
|
double gainL = 1.57079633-gainR;
|
|
gainR = sin(gainR); gainL = sin(gainL);
|
|
double gain = (inTrimA*temp)+(inTrimB*(1.0-temp));
|
|
if (gain > 1.0) gain *= gain;
|
|
if (gain < 1.0) gain = 1.0-pow(1.0-gain,2);
|
|
gain *= 2.0;
|
|
|
|
inputSampleL = inputSampleL * gainL * gain;
|
|
inputSampleR = inputSampleR * gainR * gain;
|
|
//applies pan section, and smoothed fader gain
|
|
|
|
double darkSampleL = inputSampleL;
|
|
double darkSampleR = inputSampleR;
|
|
if (avgPos > 31) avgPos = 0;
|
|
if (spacing > 31) {
|
|
avg32L[avgPos] = darkSampleL; avg32R[avgPos] = darkSampleR;
|
|
darkSampleL = 0.0; darkSampleR = 0.0;
|
|
for (int x = 0; x < 32; x++) {darkSampleL += avg32L[x]; darkSampleR += avg32R[x];}
|
|
darkSampleL /= 32.0; darkSampleR /= 32.0;
|
|
} if (spacing > 15) {
|
|
avg16L[avgPos%16] = darkSampleL; avg16R[avgPos%16] = darkSampleR;
|
|
darkSampleL = 0.0; darkSampleR = 0.0;
|
|
for (int x = 0; x < 16; x++) {darkSampleL += avg16L[x]; darkSampleR += avg16R[x];}
|
|
darkSampleL /= 16.0; darkSampleR /= 16.0;
|
|
} if (spacing > 7) {
|
|
avg8L[avgPos%8] = darkSampleL; avg8R[avgPos%8] = darkSampleR;
|
|
darkSampleL = 0.0; darkSampleR = 0.0;
|
|
for (int x = 0; x < 8; x++) {darkSampleL += avg8L[x]; darkSampleR += avg8R[x];}
|
|
darkSampleL /= 8.0; darkSampleR /= 8.0;
|
|
} if (spacing > 3) {
|
|
avg4L[avgPos%4] = darkSampleL; avg4R[avgPos%4] = darkSampleR;
|
|
darkSampleL = 0.0; darkSampleR = 0.0;
|
|
for (int x = 0; x < 4; x++) {darkSampleL += avg4L[x]; darkSampleR += avg4R[x];}
|
|
darkSampleL /= 4.0; darkSampleR /= 4.0;
|
|
} if (spacing > 1) {
|
|
avg2L[avgPos%2] = darkSampleL; avg2R[avgPos%2] = darkSampleR;
|
|
darkSampleL = 0.0; darkSampleR = 0.0;
|
|
for (int x = 0; x < 2; x++) {darkSampleL += avg2L[x]; darkSampleR += avg2R[x];}
|
|
darkSampleL /= 2.0; darkSampleR /= 2.0;
|
|
} avgPos++;
|
|
lastSlewL += fabs(lastSlewpleL-inputSampleL); lastSlewpleL = inputSampleL;
|
|
double avgSlewL = fmin(lastSlewL*lastSlewL*(0.0635-(overallscale*0.0018436)),1.0);
|
|
lastSlewL = fmax(lastSlewL*0.78,2.39996322972865332223);
|
|
lastSlewR += fabs(lastSlewpleR-inputSampleR); lastSlewpleR = inputSampleR;
|
|
double avgSlewR = fmin(lastSlewR*lastSlewR*(0.0635-(overallscale*0.0018436)),1.0);
|
|
lastSlewR = fmax(lastSlewR*0.78,2.39996322972865332223); //look up Golden Angle, it's cool
|
|
inputSampleL = (inputSampleL*(1.0-avgSlewL)) + (darkSampleL*avgSlewL);
|
|
inputSampleR = (inputSampleR*(1.0-avgSlewR)) + (darkSampleR*avgSlewR);
|
|
|
|
inputSampleL = fmin(fmax(inputSampleL,-2.032610446872596),2.032610446872596);
|
|
long double X = inputSampleL * inputSampleL;
|
|
long double sat = inputSampleL * X;
|
|
inputSampleL -= (sat*0.125); sat *= X;
|
|
inputSampleL += (sat*0.0078125); sat *= X;
|
|
inputSampleL -= (sat*0.000244140625); sat *= X;
|
|
inputSampleL += (sat*0.000003814697265625); sat *= X;
|
|
inputSampleL -= (sat*0.0000000298023223876953125); sat *= X;
|
|
//purestsaturation: sine, except all the corrections
|
|
//retain mantissa of a long double increasing power function
|
|
|
|
inputSampleR = fmin(fmax(inputSampleR,-2.032610446872596),2.032610446872596);
|
|
X = inputSampleR * inputSampleR;
|
|
sat = inputSampleR * X;
|
|
inputSampleR -= (sat*0.125); sat *= X;
|
|
inputSampleR += (sat*0.0078125); sat *= X;
|
|
inputSampleR -= (sat*0.000244140625); sat *= X;
|
|
inputSampleR += (sat*0.000003814697265625); sat *= X;
|
|
inputSampleR -= (sat*0.0000000298023223876953125); sat *= X;
|
|
//purestsaturation: sine, except all the corrections
|
|
//retain mantissa of a long double increasing power function
|
|
|
|
//we are leaving it as a clip that will go over 0dB.
|
|
//it is a softclip so it will give you a more forgiving experience,
|
|
//but you are meant to not drive the softclip for just level.
|
|
|
|
//begin 32 bit stereo floating point dither
|
|
int expon; frexpf((float)inputSampleL, &expon);
|
|
fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
|
|
inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
|
|
frexpf((float)inputSampleR, &expon);
|
|
fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
|
|
inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
|
|
//end 32 bit stereo floating point dither
|
|
|
|
*outputL = inputSampleL;
|
|
*outputR = inputSampleR;
|
|
//direct stereo out
|
|
|
|
inputL += 1;
|
|
inputR += 1;
|
|
outputL += 1;
|
|
outputR += 1;
|
|
}
|
|
return noErr;
|
|
}
|
|
|