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Diffstat (limited to 'plugins/MacAU/StudioTan/StudioTan.cpp')
| -rwxr-xr-x | plugins/MacAU/StudioTan/StudioTan.cpp | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/plugins/MacAU/StudioTan/StudioTan.cpp b/plugins/MacAU/StudioTan/StudioTan.cpp new file mode 100755 index 0000000..a4d0221 --- /dev/null +++ b/plugins/MacAU/StudioTan/StudioTan.cpp @@ -0,0 +1,355 @@ +/* +* File: StudioTan.cpp +* +* Version: 1.0 +* +* Created: 1/9/19 +* +* 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. +* +*/ +/*============================================================================= + StudioTan.cpp + +=============================================================================*/ +#include "StudioTan.h" + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +COMPONENT_ENTRY(StudioTan) + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::StudioTan +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +StudioTan::StudioTan(AudioUnit component) + : AUEffectBase(component) +{ + CreateElements(); + Globals()->UseIndexedParameters(kNumberOfParameters); + SetParameter(kParam_One, kDefaultValue_ParamOne ); + +#if AU_DEBUG_DISPATCHER + mDebugDispatcher = new AUDebugDispatcher (this); +#endif + +} + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::GetParameterValueStrings +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult StudioTan::GetParameterValueStrings(AudioUnitScope inScope, + AudioUnitParameterID inParameterID, + CFArrayRef * outStrings) +{ + if ((inScope == kAudioUnitScope_Global) && (inParameterID == kParam_One)) //ID must be actual name of parameter identifier, not number + { + if (outStrings == NULL) return noErr; + CFStringRef strings [] = + { + kMenuItem_ST, + kMenuItem_DM, + kMenuItem_NJ, + kMenuItem_STCD, + kMenuItem_DMCD, + kMenuItem_NJCD, + }; + *outStrings = CFArrayCreate ( + NULL, + (const void **) strings, + (sizeof (strings) / sizeof (strings [0])), + NULL + ); + return noErr; + } + return kAudioUnitErr_InvalidProperty; +} + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::GetParameterInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult StudioTan::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_Indexed; + outParameterInfo.minValue = kST; + outParameterInfo.maxValue = kNJCD; + outParameterInfo.defaultValue = kDefaultValue_ParamOne; + break; + default: + result = kAudioUnitErr_InvalidParameter; + break; + } + } else { + result = kAudioUnitErr_InvalidParameter; + } + + + + return result; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::GetPropertyInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult StudioTan::GetPropertyInfo (AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + UInt32 & outDataSize, + Boolean & outWritable) +{ + return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable); +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::GetProperty +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult StudioTan::GetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + void * outData ) +{ + return AUEffectBase::GetProperty (inID, inScope, inElement, outData); +} + +// StudioTan::Initialize +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult StudioTan::Initialize() +{ + ComponentResult result = AUEffectBase::Initialize(); + if (result == noErr) + Reset(kAudioUnitScope_Global, 0); + return result; +} + +#pragma mark ____StudioTanEffectKernel + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::StudioTanKernel::Reset() +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void StudioTan::StudioTanKernel::Reset() +{ + byn[0] = 1000.0; + byn[1] = 301.0; + byn[2] = 176.0; + byn[3] = 125.0; + byn[4] = 97.0; + byn[5] = 79.0; + byn[6] = 67.0; + byn[7] = 58.0; + byn[8] = 51.0; + byn[9] = 46.0; + byn[10] = 1000.0; + noiseShaping = 0.0; + lastSample = 0.0; + lastSample2 = 0.0; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// StudioTan::StudioTanKernel::Process +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void StudioTan::StudioTanKernel::Process( const Float32 *inSourceP, + Float32 *inDestP, + UInt32 inFramesToProcess, + UInt32 inNumChannels, + bool &ioSilence ) +{ + UInt32 nSampleFrames = inFramesToProcess; + const Float32 *sourceP = inSourceP; + Float32 *destP = inDestP; + int processing = (int) GetParameter( kParam_One ); + bool highres = true; //for 24 bit: false for 16 bit + bool brightfloor = true; //for Studio Tan: false for Dither Me Timbers + bool benford = true; //for Not Just Another Dither: false for newer two + bool cutbins = false; //for NJAD: only attenuate bins if one gets very full + switch (processing) + { + case 0: benford = false; break; //Studio Tan 24 + case 1: benford = false; brightfloor = false; break; //Dither Me Timbers 24 + case 2: break; //Not Just Another Dither 24 + case 3: benford = false; highres = false; break; //Studio Tan 16 + case 4: benford = false; brightfloor = false; highres = false; break; //Dither Me Timbers 16 + case 5: highres = false; break; //Not Just Another Dither 16 + } + + while (nSampleFrames-- > 0) { + long double inputSample; + long double outputSample; + long double drySample; + + if (highres) inputSample = *sourceP * 8388608.0; + else inputSample = *sourceP * 32768.0; + //shared input stage + + if (benford) { + //begin Not Just Another Dither + cutbins = false; + drySample = inputSample; + inputSample -= noiseShaping; + long double benfordize = floor(inputSample); + while (benfordize >= 1.0) {benfordize /= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + int hotbinA = floor(benfordize); + //hotbin becomes the Benford bin value for this number floored + long double totalA = 0; + if ((hotbinA > 0) && (hotbinA < 10)) + { + byn[hotbinA] += 1; + if (byn[hotbinA] > 982) cutbins = true; + totalA += (301-byn[1]); + totalA += (176-byn[2]); + totalA += (125-byn[3]); + totalA += (97-byn[4]); + totalA += (79-byn[5]); + totalA += (67-byn[6]); + totalA += (58-byn[7]); + totalA += (51-byn[8]); + totalA += (46-byn[9]); + byn[hotbinA] -= 1; + } else {hotbinA = 10;} + //produce total number- smaller is closer to Benford real + + benfordize = ceil(inputSample); + while (benfordize >= 1.0) {benfordize /= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + if (benfordize < 1.0) {benfordize *= 10;} + int hotbinB = floor(benfordize); + //hotbin becomes the Benford bin value for this number ceiled + long double totalB = 0; + if ((hotbinB > 0) && (hotbinB < 10)) + { + byn[hotbinB] += 1; + if (byn[hotbinB] > 982) cutbins = true; + totalB += (301-byn[1]); + totalB += (176-byn[2]); + totalB += (125-byn[3]); + totalB += (97-byn[4]); + totalB += (79-byn[5]); + totalB += (67-byn[6]); + totalB += (58-byn[7]); + totalB += (51-byn[8]); + totalB += (46-byn[9]); + byn[hotbinB] -= 1; + } else {hotbinB = 10;} + //produce total number- smaller is closer to Benford real + + if (totalA < totalB) + { + byn[hotbinA] += 1; + outputSample = floor(inputSample); + } + else + { + byn[hotbinB] += 1; + outputSample = floor(inputSample+1); + } + //assign the relevant one to the delay line + //and floor/ceil signal accordingly + if (cutbins) { + byn[1] *= 0.99; + byn[2] *= 0.99; + byn[3] *= 0.99; + byn[4] *= 0.99; + byn[5] *= 0.99; + byn[6] *= 0.99; + byn[7] *= 0.99; + byn[8] *= 0.99; + byn[9] *= 0.99; + byn[10] *= 0.99; //catchall for garbage data + } + noiseShaping += outputSample - drySample; + + //end Not Just Another Dither + } else { + //begin StudioTan or Dither Me Timbers + if (brightfloor) { + lastSample -= (noiseShaping*0.8); + if ((lastSample+lastSample) <= (inputSample+lastSample2)) outputSample = floor(lastSample); //StudioTan + else outputSample = floor(lastSample+1.0); //round down or up based on whether it softens treble angles + } else { + lastSample -= (noiseShaping*0.11); + if ((lastSample+lastSample) >= (inputSample+lastSample2)) outputSample = floor(lastSample); //DitherMeTimbers + else outputSample = floor(lastSample+1.0); //round down or up based on whether it softens treble angles + } + noiseShaping += outputSample; + noiseShaping -= lastSample; //apply noise shaping + lastSample2 = lastSample; + lastSample = inputSample; //we retain three samples in a row + //end StudioTan or Dither Me Timbers + } + + //shared output stage + long double noiseSuppress = fabs(inputSample); + if (noiseShaping > noiseSuppress) noiseShaping = noiseSuppress; + if (noiseShaping < -noiseSuppress) noiseShaping = -noiseSuppress; + + Float32 ironBar; + if (highres) ironBar = outputSample / 8388608.0; + else ironBar = outputSample / 32768.0; + + if (ironBar > 1.0) ironBar = 1.0; + if (ironBar < -1.0) ironBar = -1.0; + *destP = ironBar; + + sourceP += inNumChannels; + destP += inNumChannels; + } +} + + + |