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Diffstat (limited to 'plugins/MacAU/Luxor/Luxor.cpp')
| -rwxr-xr-x | plugins/MacAU/Luxor/Luxor.cpp | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/plugins/MacAU/Luxor/Luxor.cpp b/plugins/MacAU/Luxor/Luxor.cpp new file mode 100755 index 0000000..987f3fd --- /dev/null +++ b/plugins/MacAU/Luxor/Luxor.cpp @@ -0,0 +1,299 @@ +/* +* File: Luxor.cpp +* +* Version: 1.0 +* +* Created: 1/11/20 +* +* Copyright: Copyright © 2020 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. +* +*/ +/*============================================================================= + Luxor.cpp + +=============================================================================*/ +#include "Luxor.h" + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +COMPONENT_ENTRY(Luxor) + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::Luxor +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Luxor::Luxor(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 ); + +#if AU_DEBUG_DISPATCHER + mDebugDispatcher = new AUDebugDispatcher (this); +#endif + +} + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::GetParameterValueStrings +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult Luxor::GetParameterValueStrings(AudioUnitScope inScope, + AudioUnitParameterID inParameterID, + CFArrayRef * outStrings) +{ + + return kAudioUnitErr_InvalidProperty; +} + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::GetParameterInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult Luxor::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 = 3.0; + outParameterInfo.defaultValue = kDefaultValue_ParamTwo; + break; + case kParam_Three: + AUBase::FillInParameterName (outParameterInfo, kParameterThreeName, false); + outParameterInfo.unit = kAudioUnitParameterUnit_Generic; + outParameterInfo.minValue = 0.0; + outParameterInfo.maxValue = 3.0; + 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; + default: + result = kAudioUnitErr_InvalidParameter; + break; + } + } else { + result = kAudioUnitErr_InvalidParameter; + } + + + + return result; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::GetPropertyInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult Luxor::GetPropertyInfo (AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + UInt32 & outDataSize, + Boolean & outWritable) +{ + return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable); +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::GetProperty +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult Luxor::GetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + void * outData ) +{ + return AUEffectBase::GetProperty (inID, inScope, inElement, outData); +} + +// Luxor::Initialize +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult Luxor::Initialize() +{ + ComponentResult result = AUEffectBase::Initialize(); + if (result == noErr) + Reset(kAudioUnitScope_Global, 0); + return result; +} + +#pragma mark ____LuxorEffectKernel + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::LuxorKernel::Reset() +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void Luxor::LuxorKernel::Reset() +{ + for(int count = 0; count < 34; count++) {b[count] = 0;} + lastSample = 0.0; + fpd = 17; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// Luxor::LuxorKernel::Process +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void Luxor::LuxorKernel::Process( const Float32 *inSourceP, + Float32 *inDestP, + UInt32 inFramesToProcess, + UInt32 inNumChannels, + bool &ioSilence ) +{ + UInt32 nSampleFrames = inFramesToProcess; + const Float32 *sourceP = inSourceP; + Float32 *destP = inDestP; + Float64 threshold = GetParameter( kParam_One ); + Float64 hardness; + Float64 breakup = (1.0-(threshold/2.0))*3.14159265358979; + Float64 bridgerectifier; + Float64 sqdrive = GetParameter( kParam_Two ); + if (sqdrive > 1.0) sqdrive *= sqdrive; + sqdrive = sqrt(sqdrive); + Float64 indrive = GetParameter( kParam_Three ); + if (indrive > 1.0) indrive *= indrive; + indrive *= (1.0+(0.1935*sqdrive)); + //no gain loss of convolution for APIcolypse + //calibrate this to match noise level with character at 1.0 + //you get for instance 0.819 and 1.0-0.819 is 0.181 + Float64 randy; + Float64 outlevel = GetParameter( kParam_Four ); + + if (threshold < 1) hardness = 1.0 / (1.0-threshold); + else hardness = 999999999999999999999.0; + //set up hardness to exactly fill gap between threshold and 0db + //if threshold is literally 1 then hardness is infinite, so we make it very big + + while (nSampleFrames-- > 0) { + long double inputSample = *sourceP; + if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37; + + inputSample *= indrive; + //calibrated to match gain through convolution and -0.3 correction + if (sqdrive > 0.0){ + 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 * sqdrive; + inputSample -= (b[1] * (0.20641602693167951 - (0.00078952185394898*fabs(b[1])))); + inputSample += (b[2] * (0.07601816702459827 + (0.00022786334179951*fabs(b[2])))); + inputSample -= (b[3] * (0.03929765560019285 - (0.00054517993246352*fabs(b[3])))); + inputSample -= (b[4] * (0.00298333157711103 - (0.00033083756545638*fabs(b[4])))); + inputSample += (b[5] * (0.00724006282304610 + (0.00045483683460812*fabs(b[5])))); + inputSample -= (b[6] * (0.03073108963506036 - (0.00038190060537423*fabs(b[6])))); + inputSample += (b[7] * (0.02332434692533051 + (0.00040347288688932*fabs(b[7])))); + inputSample -= (b[8] * (0.03792606869061214 - (0.00039673687335892*fabs(b[8])))); + inputSample += (b[9] * (0.02437059376675688 + (0.00037221210539535*fabs(b[9])))); + inputSample -= (b[10] * (0.03416764311979521 - (0.00040314850796953*fabs(b[10])))); + inputSample += (b[11] * (0.01761669868102127 + (0.00035989484330131*fabs(b[11])))); + inputSample -= (b[12] * (0.02538237753523052 - (0.00040149119125394*fabs(b[12])))); + inputSample += (b[13] * (0.00770737340728377 + (0.00035462118723555*fabs(b[13])))); + inputSample -= (b[14] * (0.01580706228482803 - (0.00037563141307594*fabs(b[14])))); + inputSample -= (b[15] * (0.00055119240005586 - (0.00035409299268971*fabs(b[15])))); + inputSample -= (b[16] * (0.00818552143438768 - (0.00036507661042180*fabs(b[16])))); + inputSample -= (b[17] * (0.00661842703548304 - (0.00034550528559056*fabs(b[17])))); + inputSample -= (b[18] * (0.00362447476272098 - (0.00035553012761240*fabs(b[18])))); + inputSample -= (b[19] * (0.00957098027225745 - (0.00034091691045338*fabs(b[19])))); + inputSample -= (b[20] * (0.00193621774016660 - (0.00034554529131668*fabs(b[20])))); + inputSample -= (b[21] * (0.01005433027357935 - (0.00033878223153845*fabs(b[21])))); + inputSample -= (b[22] * (0.00221712428802004 - (0.00033481410137711*fabs(b[22])))); + inputSample -= (b[23] * (0.00911255639207995 - (0.00033263425232666*fabs(b[23])))); + inputSample -= (b[24] * (0.00339667169034909 - (0.00032634428038430*fabs(b[24])))); + inputSample -= (b[25] * (0.00774096948249924 - (0.00032599868802996*fabs(b[25])))); + inputSample -= (b[26] * (0.00463907626773794 - (0.00032131993173361*fabs(b[26])))); + inputSample -= (b[27] * (0.00658222997260378 - (0.00032014977430211*fabs(b[27])))); + inputSample -= (b[28] * (0.00550347079924993 - (0.00031557153256653*fabs(b[28])))); + inputSample -= (b[29] * (0.00588754981375325 - (0.00032041307242303*fabs(b[29])))); + inputSample -= (b[30] * (0.00590293898419892 - (0.00030457857428714*fabs(b[30])))); + inputSample -= (b[31] * (0.00558952010441800 - (0.00030448053548086*fabs(b[31])))); + inputSample -= (b[32] * (0.00598183557634295 - (0.00030715064323181*fabs(b[32])))); + inputSample -= (b[33] * (0.00555223929714115 - (0.00030319367948553*fabs(b[33]))));} + //voxbox 40 db + + if (fabs(inputSample) > threshold) + { + bridgerectifier = (fabs(inputSample)-threshold)*hardness; + //skip flat area if any, scale to distortion limit + if (bridgerectifier > breakup) bridgerectifier = breakup; + //max value for sine function, 'breakup' modeling for trashed console tone + //more hardness = more solidness behind breakup modeling. more softness, more 'grunge' and sag + bridgerectifier = sin(bridgerectifier)/hardness; + //do the sine factor, scale back to proper amount + if (inputSample > 0) inputSample = bridgerectifier+threshold; + else inputSample = -(bridgerectifier+threshold); + } + //otherwise we leave it untouched by the overdrive stuff + randy = ((rand()/(double)RAND_MAX)*0.031); + inputSample = ((inputSample*(1-randy))+(lastSample*randy)) * outlevel; + lastSample = inputSample; + + + //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; + } +} + |