mirror of
https://github.com/airwindows/airwindows.git
synced 2026-05-15 14:16:00 -06:00
290 lines
12 KiB
C++
Executable file
290 lines
12 KiB
C++
Executable file
/*
|
|
* File: DubPlate.cpp
|
|
*
|
|
* Version: 1.0
|
|
*
|
|
* Created: 2/25/25
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
/*=============================================================================
|
|
DubPlate.cpp
|
|
|
|
=============================================================================*/
|
|
#include "DubPlate.h"
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
COMPONENT_ENTRY(DubPlate)
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::DubPlate
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
DubPlate::DubPlate(AudioUnit component)
|
|
: AUEffectBase(component)
|
|
{
|
|
CreateElements();
|
|
Globals()->UseIndexedParameters(kNumberOfParameters);
|
|
|
|
#if AU_DEBUG_DISPATCHER
|
|
mDebugDispatcher = new AUDebugDispatcher (this);
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::GetParameterValueStrings
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::GetParameterValueStrings(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
CFArrayRef * outStrings)
|
|
{
|
|
|
|
return kAudioUnitErr_InvalidProperty;
|
|
}
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::GetParameterInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::GetParameterInfo(AudioUnitScope inScope,
|
|
AudioUnitParameterID inParameterID,
|
|
AudioUnitParameterInfo &outParameterInfo )
|
|
{
|
|
ComponentResult result = noErr;
|
|
|
|
outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
|
|
| kAudioUnitParameterFlag_IsReadable;
|
|
|
|
if (inScope == kAudioUnitScope_Global) {
|
|
switch(inParameterID)
|
|
{
|
|
default:
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
break;
|
|
}
|
|
} else {
|
|
result = kAudioUnitErr_InvalidParameter;
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::GetPropertyInfo
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::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 DubPlate::SupportedNumChannels(const AUChannelInfo ** outInfo)
|
|
{
|
|
if (outInfo != NULL)
|
|
{
|
|
static AUChannelInfo info;
|
|
info.inChannels = 2;
|
|
info.outChannels = 2;
|
|
*outInfo = &info;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::GetProperty
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::GetProperty( AudioUnitPropertyID inID,
|
|
AudioUnitScope inScope,
|
|
AudioUnitElement inElement,
|
|
void * outData )
|
|
{
|
|
return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
|
|
}
|
|
|
|
// DubPlate::Initialize
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::Initialize()
|
|
{
|
|
ComponentResult result = AUEffectBase::Initialize();
|
|
if (result == noErr)
|
|
Reset(kAudioUnitScope_Global, 0);
|
|
return result;
|
|
}
|
|
|
|
#pragma mark ____DubPlateEffectKernel
|
|
|
|
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::DubPlateKernel::Reset()
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
ComponentResult DubPlate::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
|
|
{
|
|
iirA = 0.0;
|
|
iirB = 0.0;
|
|
iirC = 0.0;
|
|
iirD = 0.0;
|
|
fpFlip = true;
|
|
lastSinewAL = 0.0;
|
|
lastSinewAR = 0.0;
|
|
lastSinewBL = 0.0;
|
|
lastSinewBR = 0.0;
|
|
fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
|
|
fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
|
|
return noErr;
|
|
}
|
|
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
// DubPlate::ProcessBufferLists
|
|
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
OSStatus DubPlate::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();
|
|
|
|
double rangescale = 0.1 / overallscale;
|
|
double iirSide = 0.287496 * rangescale;
|
|
double iirMid = 0.20123 * rangescale;
|
|
double threshSinewA = 0.15 / overallscale;
|
|
double threshSinewB = 0.127 / overallscale;
|
|
|
|
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;
|
|
|
|
double mid = inputSampleL + inputSampleR;
|
|
double side = inputSampleL - inputSampleR;
|
|
//assign mid and side.Between these sections, you can do mid/side processing
|
|
double temp = side;
|
|
double correction;
|
|
|
|
if (fpFlip) {
|
|
iirA = (iirA * (1.0 - iirSide)) + (temp * iirSide); temp -= iirA; correction = iirA;
|
|
} else {
|
|
iirB = (iirB * (1.0 - iirSide)) + (temp * iirSide); temp -= iirB; correction = iirB;
|
|
}
|
|
iirC = (iirC * (1.0 - iirSide)) + (temp * iirSide); temp -= iirC; correction += (iirC * 0.162);
|
|
|
|
side -= sin(correction);
|
|
fpFlip = !fpFlip;
|
|
|
|
iirD = (iirD * (1.0 - iirMid)) + (mid * iirMid);
|
|
mid -= sin(iirD);
|
|
//gonna cut those lows a hair
|
|
|
|
inputSampleL = (mid+side)/2.0;
|
|
inputSampleR = (mid-side)/2.0;
|
|
//unassign mid and side
|
|
|
|
temp = inputSampleL;
|
|
double sinew = threshSinewA * cos(lastSinewAL*lastSinewAL);
|
|
if (inputSampleL - lastSinewAL > sinew) temp = lastSinewAL + sinew;
|
|
if (-(inputSampleL - lastSinewAL) > sinew) temp = lastSinewAL - sinew;
|
|
lastSinewAL = temp;
|
|
if (lastSinewAL > 1.0) lastSinewAL = 1.0;
|
|
if (lastSinewAL < -1.0) lastSinewAL = -1.0;
|
|
inputSampleL = (inputSampleL * 0.5)+(lastSinewAL * 0.5);
|
|
|
|
sinew = threshSinewB * cos(lastSinewBL*lastSinewBL);
|
|
if (inputSampleL - lastSinewBL > sinew) temp = lastSinewBL + sinew;
|
|
if (-(inputSampleL - lastSinewBL) > sinew) temp = lastSinewBL - sinew;
|
|
lastSinewBL = temp;
|
|
if (lastSinewBL > 1.0) lastSinewBL = 1.0;
|
|
if (lastSinewBL < -1.0) lastSinewBL = -1.0;
|
|
inputSampleL = (inputSampleL * 0.414)+(lastSinewBL * 0.586);
|
|
|
|
temp = inputSampleR;
|
|
sinew = threshSinewA * cos(lastSinewAR*lastSinewAR);
|
|
if (inputSampleR - lastSinewAR > sinew) temp = lastSinewAR + sinew;
|
|
if (-(inputSampleR - lastSinewAR) > sinew) temp = lastSinewAR - sinew;
|
|
lastSinewAR = temp;
|
|
if (lastSinewAR > 1.0) lastSinewAR = 1.0;
|
|
if (lastSinewAR < -1.0) lastSinewAR = -1.0;
|
|
inputSampleR = (inputSampleR * 0.5)+(lastSinewAR * 0.5);
|
|
|
|
sinew = threshSinewB * cos(lastSinewBR*lastSinewBR);
|
|
if (inputSampleR - lastSinewBR > sinew) temp = lastSinewBR + sinew;
|
|
if (-(inputSampleR - lastSinewBR) > sinew) temp = lastSinewBR - sinew;
|
|
lastSinewBR = temp;
|
|
if (lastSinewBR > 1.0) lastSinewBR = 1.0;
|
|
if (lastSinewBR < -1.0) lastSinewBR = -1.0;
|
|
inputSampleR = (inputSampleR * 0.414)+(lastSinewBR * 0.586);
|
|
//run Sinew to stop excess slews, two layers to make it more audible
|
|
|
|
//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;
|
|
}
|
|
|