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Diffstat (limited to 'plugins/MacAU/PeaksOnly/PeaksOnly.cpp')
-rwxr-xr-x | plugins/MacAU/PeaksOnly/PeaksOnly.cpp | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/plugins/MacAU/PeaksOnly/PeaksOnly.cpp b/plugins/MacAU/PeaksOnly/PeaksOnly.cpp new file mode 100755 index 0000000..efe8ad9 --- /dev/null +++ b/plugins/MacAU/PeaksOnly/PeaksOnly.cpp @@ -0,0 +1,259 @@ +/* +* File: PeaksOnly.cpp +* +* Version: 1.0 +* +* Created: 9/1/19 +* +* 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. +* +*/ +/*============================================================================= + PeaksOnly.cpp + +=============================================================================*/ +#include "PeaksOnly.h" + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +COMPONENT_ENTRY(PeaksOnly) + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::PeaksOnly +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +PeaksOnly::PeaksOnly(AudioUnit component) + : AUEffectBase(component) +{ + CreateElements(); + Globals()->UseIndexedParameters(kNumberOfParameters); + +#if AU_DEBUG_DISPATCHER + mDebugDispatcher = new AUDebugDispatcher (this); +#endif + +} + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::GetParameterValueStrings +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PeaksOnly::GetParameterValueStrings(AudioUnitScope inScope, + AudioUnitParameterID inParameterID, + CFArrayRef * outStrings) +{ + + return kAudioUnitErr_InvalidProperty; +} + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::GetParameterInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PeaksOnly::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; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::GetPropertyInfo +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PeaksOnly::GetPropertyInfo (AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + UInt32 & outDataSize, + Boolean & outWritable) +{ + return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable); +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::GetProperty +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PeaksOnly::GetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + void * outData ) +{ + return AUEffectBase::GetProperty (inID, inScope, inElement, outData); +} + +// PeaksOnly::Initialize +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +ComponentResult PeaksOnly::Initialize() +{ + ComponentResult result = AUEffectBase::Initialize(); + if (result == noErr) + Reset(kAudioUnitScope_Global, 0); + return result; +} + +#pragma mark ____PeaksOnlyEffectKernel + + + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::PeaksOnlyKernel::Reset() +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void PeaksOnly::PeaksOnlyKernel::Reset() +{ + for(int count = 0; count < 1502; count++) {a[count] = 0.0; b[count] = 0.0; c[count] = 0.0; d[count] = 0.0;} + ax = 1; bx = 1; cx = 1; dx = 1; + fpd = 17; +} + +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +// PeaksOnly::PeaksOnlyKernel::Process +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +void PeaksOnly::PeaksOnlyKernel::Process( const Float32 *inSourceP, + Float32 *inDestP, + UInt32 inFramesToProcess, + UInt32 inNumChannels, + bool &ioSilence ) +{ + UInt32 nSampleFrames = inFramesToProcess; + const Float32 *sourceP = inSourceP; + Float32 *destP = inDestP; + long double overallscale = 1.0; + overallscale /= 44100.0; + overallscale *= GetSampleRate(); + + int am = (int)149.0 * overallscale; + int bm = (int)179.0 * overallscale; + int cm = (int)191.0 * overallscale; + int dm = (int)223.0 * overallscale; //these are 'good' primes, spacing out the allpasses + int allpasstemp = 0; + + while (nSampleFrames-- > 0) { + long double inputSample = *sourceP; + if (fabs(inputSample)<1.18e-37) inputSample = fpd * 1.18e-37; + + if (inputSample > 1.0) inputSample = 1.0; + if (inputSample < -1.0) inputSample = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSample = asin(inputSample); + //amplitude aspect + + allpasstemp = ax - 1; if (allpasstemp < 0 || allpasstemp > am) allpasstemp = am; + inputSample -= a[allpasstemp]*0.5; + a[ax] = inputSample; + inputSample *= 0.5; + ax--; if (ax < 0 || ax > am) {ax = am;} + inputSample += (a[ax]); + //a single Midiverb-style allpass + + if (inputSample > 1.0) inputSample = 1.0; + if (inputSample < -1.0) inputSample = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSample = asin(inputSample); + //amplitude aspect + + allpasstemp = bx - 1; if (allpasstemp < 0 || allpasstemp > bm) allpasstemp = bm; + inputSample -= b[allpasstemp]*0.5; + b[bx] = inputSample; + inputSample *= 0.5; + bx--; if (bx < 0 || bx > bm) {bx = bm;} + inputSample += (b[bx]); + //a single Midiverb-style allpass + + if (inputSample > 1.0) inputSample = 1.0; + if (inputSample < -1.0) inputSample = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSample = asin(inputSample); + //amplitude aspect + + allpasstemp = cx - 1; if (allpasstemp < 0 || allpasstemp > cm) allpasstemp = cm; + inputSample -= c[allpasstemp]*0.5; + c[cx] = inputSample; + inputSample *= 0.5; + cx--; if (cx < 0 || cx > cm) {cx = cm;} + inputSample += (c[cx]); + //a single Midiverb-style allpass + + if (inputSample > 1.0) inputSample = 1.0; + if (inputSample < -1.0) inputSample = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSample = asin(inputSample); + //amplitude aspect + + allpasstemp = dx - 1; if (allpasstemp < 0 || allpasstemp > dm) allpasstemp = dm; + inputSample -= d[allpasstemp]*0.5; + d[dx] = inputSample; + inputSample *= 0.5; + dx--; if (dx < 0 || dx > dm) {dx = dm;} + inputSample += (d[dx]); + //a single Midiverb-style allpass + + if (inputSample > 1.0) inputSample = 1.0; + if (inputSample < -1.0) inputSample = -1.0; + //without this, you can get a NaN condition where it spits out DC offset at full blast! + inputSample = asin(inputSample); + //amplitude aspect + + inputSample *= 0.63679; //scale it to 0dB output at full blast + + //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; + } +} + |