BrassRider, Highpass2

1 files changed, 314 insertions, 0 deletions

diff --git a/plugins/MacAU/Highpass2/Highpass2.cpp b/plugins/MacAU/Highpass2/Highpass2.cpp
new file mode 100755
index 0000000..fb9b98f
--- /dev/null
+++ b/plugins/MacAU/Highpass2/Highpass2.cpp
@@ -0,0 +1,314 @@
+/*
+*	File:		Highpass2.cpp
+*	
+*	Version:	1.0
+* 
+*	Created:	3/13/19
+*	
+*	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.
+*
+*/
+/*=============================================================================
+	Highpass2.cpp
+	
+=============================================================================*/
+#include "Highpass2.h"
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+COMPONENT_ENTRY(Highpass2)
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::Highpass2
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Highpass2::Highpass2(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
+	
+}
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::GetParameterValueStrings
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ComponentResult			Highpass2::GetParameterValueStrings(AudioUnitScope		inScope,
+                                                                AudioUnitParameterID	inParameterID,
+                                                                CFArrayRef *		outStrings)
+{
+        
+    return kAudioUnitErr_InvalidProperty;
+}
+
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::GetParameterInfo
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ComponentResult			Highpass2::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 = -1.0;
+                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 = 4.0;
+                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;
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::GetPropertyInfo
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ComponentResult			Highpass2::GetPropertyInfo (AudioUnitPropertyID	inID,
+                                                        AudioUnitScope		inScope,
+                                                        AudioUnitElement	inElement,
+                                                        UInt32 &		outDataSize,
+                                                        Boolean &		outWritable)
+{
+	return AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::GetProperty
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ComponentResult			Highpass2::GetProperty(	AudioUnitPropertyID inID,
+                                                        AudioUnitScope 		inScope,
+                                                        AudioUnitElement 	inElement,
+                                                        void *			outData )
+{
+	return AUEffectBase::GetProperty (inID, inScope, inElement, outData);
+}
+
+//	Highpass2::Initialize
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ComponentResult Highpass2::Initialize()
+{
+    ComponentResult result = AUEffectBase::Initialize();
+    if (result == noErr)
+        Reset(kAudioUnitScope_Global, 0);
+    return result;
+}
+
+#pragma mark ____Highpass2EffectKernel
+
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::Highpass2Kernel::Reset()
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+void		Highpass2::Highpass2Kernel::Reset()
+{
+	iirSampleA = 0.0;
+	iirSampleB = 0.0;
+	iirSampleC = 0.0;
+	iirSampleD = 0.0;
+	iirSampleE = 0.0;
+	iirSampleF = 0.0;
+	iirSampleG = 0.0;
+	iirSampleH = 0.0;
+	fpd = 17;
+	fpFlip = true;
+}
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//	Highpass2::Highpass2Kernel::Process
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+void		Highpass2::Highpass2Kernel::Process(	const Float32 	*inSourceP,
+                                                    Float32		 	*inDestP,
+                                                    UInt32 			inFramesToProcess,
+                                                    UInt32			inNumChannels, 
+                                                    bool			&ioSilence )
+{
+	UInt32 nSampleFrames = inFramesToProcess;
+	const Float32 *sourceP = inSourceP;
+	Float32 *destP = inDestP;
+	Float64 iirAmount = pow(GetParameter( kParam_One ),4);
+	Float64 tight = GetParameter( kParam_Two );	
+	if (iirAmount < 0.0000001) iirAmount = 0.0000001;
+	if (iirAmount > 1) iirAmount = 1;
+	if (tight < 0.0) tight *= 0.5;
+	Float64 offset;
+	Float64 aWet = 1.0;
+	Float64 bWet = 1.0;
+	Float64 cWet = 1.0;
+	Float64 dWet = GetParameter( kParam_Three );
+	//four-stage wet/dry control using progressive stages that bypass when not engaged
+	if (dWet < 1.0) {aWet = dWet; bWet = 0.0; cWet = 0.0; dWet = 0.0;}
+	else if (dWet < 2.0) {bWet = dWet - 1.0; cWet = 0.0; dWet = 0.0;}
+	else if (dWet < 3.0) {cWet = dWet - 2.0; dWet = 0.0;}
+	else {dWet -= 3.0;}
+	//this is one way to make a little set of dry/wet stages that are successively added to the
+	//output as the control is turned up. Each one independently goes from 0-1 and stays at 1
+	//beyond that point: this is a way to progressively add a 'black box' sound processing
+	//which lets you fall through to simpler processing at lower settings.
+	Float64 wet = GetParameter( kParam_Four );
+	
+	while (nSampleFrames-- > 0) {
+		long double inputSample = *sourceP;
+		
+		static int noisesource = 0;
+		int residue;
+		double applyresidue;
+		noisesource = noisesource % 1700021; noisesource++;
+		residue = noisesource * noisesource;
+		residue = residue % 170003; residue *= residue;
+		residue = residue % 17011; residue *= residue;
+		residue = residue % 1709; residue *= residue;
+		residue = residue % 173; residue *= residue;
+		residue = residue % 17;
+		applyresidue = residue;
+		applyresidue *= 0.00000001;
+		applyresidue *= 0.00000001;
+		inputSample += applyresidue;
+		if (inputSample<1.2e-38 && -inputSample<1.2e-38) {
+			inputSample -= applyresidue;
+		}
+		//for live air, we always apply the dither noise. Then, if our result is 
+		//effectively digital black, we'll subtract it again. We want a 'air' hiss
+		long double drySample = inputSample;
+				
+		if (tight > 0) offset = (1 - tight) + (fabs(inputSample)*tight);
+		else offset = (1 + tight) + ((1-fabs(inputSample))*tight);
+		if (offset < 0.0000001) offset = 0.0000001; if (offset > 1) offset = 1;
+
+		if (fpFlip)
+		{
+			if (aWet > 0.0) {
+				iirSampleA = (iirSampleA * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleA) * aWet) + (inputSample * (1.0-aWet));
+			}
+			if (bWet > 0.0) {
+				iirSampleC = (iirSampleC * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleC) * bWet) + (inputSample * (1.0-bWet));
+			}
+			if (cWet > 0.0) {
+				iirSampleE = (iirSampleE * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleE) * cWet) + (inputSample * (1.0-cWet));
+			}
+			if (dWet > 0.0) {
+				iirSampleG = (iirSampleG * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleG) * dWet) + (inputSample * (1.0-dWet));
+			}
+		}
+		else
+		{
+			if (aWet > 0.0) {
+				iirSampleB = (iirSampleB * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleB) * aWet) + (inputSample * (1.0-aWet));
+			}
+			if (bWet > 0.0) {
+				iirSampleD = (iirSampleD * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleD) * bWet) + (inputSample * (1.0-bWet));
+			}
+			if (cWet > 0.0) {
+				iirSampleF = (iirSampleF * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleF) * cWet) + (inputSample * (1.0-cWet));
+			}
+			if (dWet > 0.0) {
+				iirSampleH = (iirSampleH * (1 - (offset * iirAmount))) + (inputSample * (offset * iirAmount));
+				inputSample = ((inputSample-iirSampleH) * dWet) + (inputSample * (1.0-dWet));
+			}
+		}
+		
+		if (wet !=1.0) {
+			inputSample = (inputSample * wet) + (drySample * (1.0-wet));
+		}
+		//Dry/Wet control, defaults to the last slider
+		fpFlip = !fpFlip;
+		
+		//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;
+	}
+}
+