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320 lines
13 KiB
C++
Executable file
320 lines
13 KiB
C++
Executable file
/*
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* File: ConsoleLABuss.cpp
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*
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* Version: 1.0
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*
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* Created: 12/4/23
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*
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* Copyright: Copyright © 2023 Airwindows, Airwindows uses the MIT license
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*
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* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
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* consideration of your agreement to the following terms, and your use, installation, modification
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* or redistribution of this Apple software constitutes acceptance of these terms. If you do
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* not agree with these terms, please do not use, install, modify or redistribute this Apple
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* software.
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*
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* In consideration of your agreement to abide by the following terms, and subject to these terms,
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* Apple grants you a personal, non-exclusive license, under Apple's copyrights in this
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* original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the
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* Apple Software, with or without modifications, in source and/or binary forms; provided that if you
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* redistribute the Apple Software in its entirety and without modifications, you must retain this
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* notice and the following text and disclaimers in all such redistributions of the Apple Software.
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* Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to
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* endorse or promote products derived from the Apple Software without specific prior written
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* permission from Apple. Except as expressly stated in this notice, no other rights or
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* licenses, express or implied, are granted by Apple herein, including but not limited to any
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* patent rights that may be infringed by your derivative works or by other works in which the
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* Apple Software may be incorporated.
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*
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* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR
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* IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE
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* OR IN COMBINATION WITH YOUR PRODUCTS.
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*
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* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
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* REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
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* UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN
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* IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*=============================================================================
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ConsoleLABuss.cpp
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=============================================================================*/
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#include "ConsoleLABuss.h"
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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COMPONENT_ENTRY(ConsoleLABuss)
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::ConsoleLABuss
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ConsoleLABuss::ConsoleLABuss(AudioUnit component)
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: AUEffectBase(component)
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{
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CreateElements();
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Globals()->UseIndexedParameters(kNumberOfParameters);
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SetParameter(kParam_One, kDefaultValue_ParamOne );
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#if AU_DEBUG_DISPATCHER
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mDebugDispatcher = new AUDebugDispatcher (this);
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#endif
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::GetParameterValueStrings
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::GetParameterValueStrings(AudioUnitScope inScope,
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AudioUnitParameterID inParameterID,
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CFArrayRef * outStrings)
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{
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return kAudioUnitErr_InvalidProperty;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::GetParameterInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::GetParameterInfo(AudioUnitScope inScope,
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AudioUnitParameterID inParameterID,
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AudioUnitParameterInfo &outParameterInfo )
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{
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ComponentResult result = noErr;
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outParameterInfo.flags = kAudioUnitParameterFlag_IsWritable
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| kAudioUnitParameterFlag_IsReadable;
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if (inScope == kAudioUnitScope_Global) {
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switch(inParameterID)
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{
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case kParam_One:
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AUBase::FillInParameterName (outParameterInfo, kParameterOneName, false);
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outParameterInfo.unit = kAudioUnitParameterUnit_Generic;
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outParameterInfo.minValue = 0.0;
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outParameterInfo.maxValue = 1.0;
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outParameterInfo.defaultValue = kDefaultValue_ParamOne;
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break;
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default:
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result = kAudioUnitErr_InvalidParameter;
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break;
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}
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} else {
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result = kAudioUnitErr_InvalidParameter;
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}
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return result;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::GetPropertyInfo
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::GetPropertyInfo (AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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UInt32 & outDataSize,
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Boolean & outWritable)
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{
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return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// state that plugin supports only stereo-in/stereo-out processing
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UInt32 ConsoleLABuss::SupportedNumChannels(const AUChannelInfo ** outInfo)
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{
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if (outInfo != NULL)
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{
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static AUChannelInfo info;
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info.inChannels = 2;
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info.outChannels = 2;
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*outInfo = &info;
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}
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return 1;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::GetProperty
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::GetProperty( AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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void * outData )
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{
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return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
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}
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// ConsoleLABuss::Initialize
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::Initialize()
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{
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ComponentResult result = AUEffectBase::Initialize();
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if (result == noErr)
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Reset(kAudioUnitScope_Global, 0);
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return result;
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}
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#pragma mark ____ConsoleLABussEffectKernel
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::ConsoleLABussKernel::Reset()
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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ComponentResult ConsoleLABuss::Reset(AudioUnitScope inScope, AudioUnitElement inElement)
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{
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lastSinewL = lastSinewR = 0.0;
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subAL = subAR = subBL = subBR = subCL = subCR = 0.0;
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gainA = gainB = 1.0;
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fpdL = 1.0; while (fpdL < 16386) fpdL = rand()*UINT32_MAX;
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fpdR = 1.0; while (fpdR < 16386) fpdR = rand()*UINT32_MAX;
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return noErr;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// ConsoleLABuss::ProcessBufferLists
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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OSStatus ConsoleLABuss::ProcessBufferLists(AudioUnitRenderActionFlags & ioActionFlags,
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const AudioBufferList & inBuffer,
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AudioBufferList & outBuffer,
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UInt32 inFramesToProcess)
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{
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Float32 * inputL = (Float32*)(inBuffer.mBuffers[0].mData);
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Float32 * inputR = (Float32*)(inBuffer.mBuffers[1].mData);
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Float32 * outputL = (Float32*)(outBuffer.mBuffers[0].mData);
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Float32 * outputR = (Float32*)(outBuffer.mBuffers[1].mData);
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UInt32 nSampleFrames = inFramesToProcess;
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double overallscale = 1.0;
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overallscale /= 44100.0;
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overallscale *= GetSampleRate();
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gainA = gainB;
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gainB = sqrt(GetParameter( kParam_One )); //smoothed master fader from Z2 filters
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//this will be applied three times: this is to make the various tone alterations
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//hit differently at different master fader drive levels.
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//in particular, backing off the master fader tightens the super lows
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//but opens up the modified Sinew, because more of the attentuation happens before
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//you even get to slew clipping :) and if the fader is not active, it bypasses completely.
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double threshSinew = 0.718/overallscale;
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double subTrim = 0.0011 / overallscale;
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while (nSampleFrames-- > 0) {
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double inputSampleL = *inputL;
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double inputSampleR = *inputR;
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if (fabs(inputSampleL)<1.18e-23) inputSampleL = fpdL * 1.18e-17;
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if (fabs(inputSampleR)<1.18e-23) inputSampleR = fpdR * 1.18e-17;
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double temp = (double)nSampleFrames/inFramesToProcess;
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double gain = (gainA*temp)+(gainB*(1.0-temp));
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//setting up smoothed master fader
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//begin SubTight section
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double subSampleL = inputSampleL * subTrim;
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double subSampleR = inputSampleR * subTrim;
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double scale = 0.5+fabs(subSampleL*0.5);
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subSampleL = (subAL+(sin(subAL-subSampleL)*scale));
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subAL = subSampleL*scale;
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scale = 0.5+fabs(subSampleR*0.5);
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subSampleR = (subAR+(sin(subAR-subSampleR)*scale));
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subAR = subSampleR*scale;
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scale = 0.5+fabs(subSampleL*0.5);
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subSampleL = (subBL+(sin(subBL-subSampleL)*scale));
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subBL = subSampleL*scale;
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scale = 0.5+fabs(subSampleR*0.5);
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subSampleR = (subBR+(sin(subBR-subSampleR)*scale));
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subBR = subSampleR*scale;
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scale = 0.5+fabs(subSampleL*0.5);
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subSampleL = (subCL+(sin(subCL-subSampleL)*scale));
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subCL = subSampleL*scale;
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scale = 0.5+fabs(subSampleR*0.5);
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subSampleR = (subCR+(sin(subCR-subSampleR)*scale));
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subCR = subSampleR*scale;
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if (subSampleL > 0.25) subSampleL = 0.25;
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if (subSampleL < -0.25) subSampleL = -0.25;
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if (subSampleR > 0.25) subSampleR = 0.25;
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if (subSampleR < -0.25) subSampleR = -0.25;
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inputSampleL -= (subSampleL*16.0);
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inputSampleR -= (subSampleR*16.0);
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//end SubTight section
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if (gain < 1.0) {
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inputSampleL *= gain;
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inputSampleR *= gain;
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} //if using the master fader, we are going to attenuate three places.
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//subtight is always fully engaged: tighten response when restraining full console
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//begin ConsoleZeroBuss which is the one we choose for ConsoleLA
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if (inputSampleL > 2.8) inputSampleL = 2.8;
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if (inputSampleL < -2.8) inputSampleL = -2.8;
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if (inputSampleL > 0.0) inputSampleL = (inputSampleL*2.0)/(3.0-inputSampleL);
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else inputSampleL = -(inputSampleL*-2.0)/(3.0+inputSampleL);
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if (inputSampleR > 2.8) inputSampleR = 2.8;
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if (inputSampleR < -2.8) inputSampleR = -2.8;
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if (inputSampleR > 0.0) inputSampleR = (inputSampleR*2.0)/(3.0-inputSampleR);
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else inputSampleR = -(inputSampleR*-2.0)/(3.0+inputSampleR);
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//ConsoleZero Buss
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if (gain < 1.0) {
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inputSampleL *= gain;
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inputSampleR *= gain;
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} //if using the master fader, we are going to attenuate three places.
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//after C0Buss but before EverySlew: allow highs to come out a bit more
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//when pulling back master fader. Less drive equals more open
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temp = inputSampleL;
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double clamp = inputSampleL - lastSinewL;
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if (lastSinewL > 1.0) lastSinewL = 1.0;
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if (lastSinewL < -1.0) lastSinewL = -1.0;
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double sinew = threshSinew * cos(lastSinewL);
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if (clamp > sinew) temp = lastSinewL + sinew;
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if (-clamp > sinew) temp = lastSinewL - sinew;
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inputSampleL = lastSinewL = temp;
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temp = inputSampleR;
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clamp = inputSampleR - lastSinewR;
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if (lastSinewR > 1.0) lastSinewR = 1.0;
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if (lastSinewR < -1.0) lastSinewR = -1.0;
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sinew = threshSinew * cos(lastSinewR);
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if (clamp > sinew) temp = lastSinewR + sinew;
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if (-clamp > sinew) temp = lastSinewR - sinew;
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inputSampleR = lastSinewR = temp;
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if (gain < 1.0) {
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inputSampleL *= gain;
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inputSampleR *= gain;
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} //if using the master fader, we are going to attenuate three places.
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//after EverySlew fades the total output sound: least change in tone here.
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//begin 32 bit stereo floating point dither
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int expon; frexpf((float)inputSampleL, &expon);
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fpdL ^= fpdL << 13; fpdL ^= fpdL >> 17; fpdL ^= fpdL << 5;
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inputSampleL += ((double(fpdL)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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frexpf((float)inputSampleR, &expon);
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fpdR ^= fpdR << 13; fpdR ^= fpdR >> 17; fpdR ^= fpdR << 5;
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inputSampleR += ((double(fpdR)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62));
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//end 32 bit stereo floating point dither
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*outputL = inputSampleL;
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*outputR = inputSampleR;
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//direct stereo out
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inputL += 1;
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inputR += 1;
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outputL += 1;
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outputR += 1;
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}
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return noErr;
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}
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