diff options
Diffstat (limited to 'plugins/MacAU/PurestAir/PurestAir.cpp')
-rwxr-xr-x | plugins/MacAU/PurestAir/PurestAir.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/plugins/MacAU/PurestAir/PurestAir.cpp b/plugins/MacAU/PurestAir/PurestAir.cpp new file mode 100755 index 0000000..8dd6a06 --- /dev/null +++ b/plugins/MacAU/PurestAir/PurestAir.cpp @@ -0,0 +1,253 @@ +/* +* File: PurestAir.cpp +* +* Version: 1.0 +* +* Created: 8/17/19 +* +* Copyright: Copyright © 2019 Airwindows, All Rights Reserved +* +* 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. +* +*/ +/*============================================================================= + PurestAir.cpp + +=============================================================================*/ +#include "PurestAir.h" + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +COMPONENT_ENTRY(PurestAir) + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::PurestAir +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +PurestAir::PurestAir(AudioUnit component) + : AUEffectBase(component) +{ + CreateElements(); + Globals()->UseIndexedParameters(kNumberOfParameters); + SetParameter(kParam_One, kDefaultValue_ParamOne ); + SetParameter(kParam_Two, kDefaultValue_ParamTwo ); + SetParameter(kParam_Three, kDefaultValue_ParamThree ); + +#if AU_DEBUG_DISPATCHER + mDebugDispatcher = new AUDebugDispatcher (this); +#endif + +} + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::GetParameterValueStrings +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PurestAir::GetParameterValueStrings(AudioUnitScope inScope, + AudioUnitParameterID inParameterID, + CFArrayRef * outStrings) +{ + + return kAudioUnitErr_InvalidProperty; +} + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::GetParameterInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PurestAir::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 = -1.0; + 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; + default: + result = kAudioUnitErr_InvalidParameter; + break; + } + } else { + result = kAudioUnitErr_InvalidParameter; + } + + + + return result; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::GetPropertyInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PurestAir::GetPropertyInfo (AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + UInt32 & outDataSize, + Boolean & outWritable) +{ + return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable); +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::GetProperty +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PurestAir::GetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + void * outData ) +{ + return AUEffectBase::GetProperty (inID, inScope, inElement, outData); +} + +// PurestAir::Initialize +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PurestAir::Initialize() +{ + ComponentResult result = AUEffectBase::Initialize(); + if (result == noErr) + Reset(kAudioUnitScope_Global, 0); + return result; +} + +#pragma mark ____PurestAirEffectKernel + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::PurestAirKernel::Reset() +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void PurestAir::PurestAirKernel::Reset() +{ + last1Sample = 0.0; + halfwaySample = halfDrySample = halfDiffSample = diffSample = 0.0; + lastSample = 0.0; + s1 = s2 = s3 = 0.0; + apply = 0.0; + fpd = 17; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PurestAir::PurestAirKernel::Process +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void PurestAir::PurestAirKernel::Process( const Float32 *inSourceP, + Float32 *inDestP, + UInt32 inFramesToProcess, + UInt32 inNumChannels, + bool &ioSilence ) +{ + UInt32 nSampleFrames = inFramesToProcess; + const Float32 *sourceP = inSourceP; + Float32 *destP = inDestP; + + Float64 applyTarget = GetParameter( kParam_One ); + Float64 threshold = pow((1-fabs(applyTarget)),3); + if (applyTarget > 0) applyTarget *= 3; + + Float64 intensity = pow(GetParameter( kParam_Two ),2)*5.0; + Float64 wet = GetParameter( kParam_Three ); + + while (nSampleFrames-- > 0) { + long double inputSample = *sourceP; + if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37; + double drySample = inputSample; + + halfDrySample = halfwaySample = (inputSample + last1Sample) / 2.0; + last1Sample = inputSample; + s3 = s2; + s2 = s1; + s1 = inputSample; + Float64 m1 = (s1-s2)*((s1-s2)/1.3); + Float64 m2 = (s2-s3)*((s1-s2)/1.3); + Float64 sense = fabs((m1-m2)*((m1-m2)/1.3))*intensity; + //this will be 0 for smooth, high for SSS + apply += applyTarget - sense; + apply *= 0.5; + if (apply < -1.0) apply = -1.0; + + Float64 clamp = halfwaySample - halfDrySample; + if (clamp > threshold) halfwaySample = lastSample + threshold; + if (-clamp > threshold) halfwaySample = lastSample - threshold; + lastSample = halfwaySample; + + clamp = inputSample - lastSample; + if (clamp > threshold) inputSample = lastSample + threshold; + if (-clamp > threshold) inputSample = lastSample - threshold; + lastSample = inputSample; + + diffSample = *sourceP - inputSample; + halfDiffSample = halfDrySample - halfwaySample; + + inputSample = *sourceP + ((diffSample + halfDiffSample)*apply); + + if (wet !=1.0) { + inputSample = (inputSample * wet) + (drySample * (1.0-wet)); + } + + //begin 32 bit floating point dither + int expon; frexpf((float)inputSample, &expon); + fpd ^= fpd << 13; fpd ^= fpd >> 17; fpd ^= fpd << 5; + inputSample += ((double(fpd)-uint32_t(0x7fffffff)) * 5.5e-36l * pow(2,expon+62)); + //end 32 bit floating point dither + + *destP = inputSample; + + sourceP += inNumChannels; destP += inNumChannels; + } +} + |