1 files changed, 125 insertions, 0 deletions
diff --git a/externals/grill/fftease/src/vacancy~.cpp b/externals/grill/fftease/src/vacancy~.cpp
new file mode 100644
index 00000000..a6d0a852
--- /dev/null
+++ b/externals/grill/fftease/src/vacancy~.cpp
@@ -0,0 +1,125 @@
+/*
+
+FFTease - A set of Live Spectral Processors
+Originally written by Eric Lyon and Christopher Penrose for the Max/MSP platform
+
+Copyright (c)Thomas Grill (xovo@gmx.net)
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "license.txt," in this distribution.  
+
+*/
+
+#include "main.h"
+#include <stdlib.h>
+
+class vacancy:
+	public fftease
+{
+	FLEXT_HEADER_S(vacancy,fftease,setup)
+	
+public:
+	vacancy(I argc,const t_atom *argv);
+
+protected:
+	virtual V Transform(I n,S *const *in);
+
+	V ms_thresh(F thr) { _threshold = (F)pow(10.,(_threshdB = thr)*.05); }
+
+	F _threshold,_threshdB;
+	BL _invert,_useRms,_swapPhase;
+
+private:
+	static V setup(t_classid c);
+
+	FLEXT_ATTRGET_F(_threshdB)
+	FLEXT_CALLSET_F(ms_thresh)
+	FLEXT_ATTRVAR_B(_invert)
+	FLEXT_ATTRVAR_B(_useRms)
+	FLEXT_ATTRVAR_B(_swapPhase)
+};
+
+FLEXT_LIB_DSP_V("fftease, vacancy~",vacancy)
+
+
+V vacancy::setup(t_classid c)
+{
+	FLEXT_CADDATTR_VAR(c,"threshold",_threshdB,ms_thresh);
+	FLEXT_CADDATTR_VAR1(c,"invert",_invert);
+	FLEXT_CADDATTR_VAR1(c,"rms",_useRms);
+	FLEXT_CADDATTR_VAR1(c,"swapphase",_swapPhase);
+}
+
+
+vacancy::vacancy(I argc,const t_atom *argv):
+	fftease(2,F_BITSHUFFLE|F_CONVERT),
+	_threshdB(-30),_invert(false),_useRms(true),_swapPhase(false)
+{
+	/* parse and set object's options given */
+	if(argc >= 1) {
+		if(CanbeFloat(argv[0]))
+			_threshdB = GetAFloat(argv[0]);
+		else
+			post("%s - Threshold must be a float value - set to %f",thisName(),_threshdB);
+	}
+
+	if(argc >= 2) {
+		if(CanbeBool(argv[1]))
+			_invert = GetABool(argv[1]);
+		else
+			post("%s - Invert must be a boolean value - set to %0i",thisName(),_invert?1:0);
+	}
+
+	if(argc >= 3) {
+		if(CanbeBool(argv[2]))
+			_useRms = GetABool(argv[2]);
+		else
+			post("%s - Rms flag must be a boolean value - set to %0i",thisName(),_useRms?1:0);
+	}
+
+	if(argc >= 4) {
+		if(CanbeBool(argv[3]))
+			_swapPhase = GetABool(argv[3]);
+		else
+			post("%s - Swapphase flag must be a boolean value - set to %0i",thisName(),_swapPhase?1:0);
+	}
+
+	ms_thresh(_threshdB);
+
+	AddInSignal("Messages and input signal");
+	AddInSignal("Reference signal");
+	AddOutSignal("Transformed signal");
+}
+
+
+V vacancy::Transform(I _N2,S *const *in)
+{
+	const F useme = _useRms?_rms * _threshold:_threshold;
+
+	// composite here please
+	if (_invert)
+		if (_swapPhase)
+			for (I i=0; i < _N2; i+=2 )
+				if ( _channel1[i] > useme && _channel2[i] < _channel1[i] ) {
+					_channel1[i] = _channel2[i];
+					_channel1[i+1] = _channel2[i+1];
+				}
+		else
+			for (I i=0; i < _N2; i+=2 )
+				if ( _channel1[i] > useme && _channel2[i] < _channel1[i] ) {
+					_channel1[i] = _channel2[i];
+					if ( _channel1[i+1] == 0. ) _channel1[i+1] = _channel2[i+1];
+				}
+	else
+		if (_swapPhase)
+			for (I i=0; i < _N2; i+=2 )
+				if ( _channel1[i] < useme && _channel2[i] > _channel1[i] ) {
+					_channel1[i] = _channel2[i];
+					_channel1[i+1] = _channel2[i+1];
+				}
+		else
+			for (I i=0; i < _N2; i+=2 )
+				if ( _channel1[i] < useme && _channel2[i] > _channel1[i] ) {
+					_channel1[i] = _channel2[i];
+					if ( _channel1[i+1] == 0. ) _channel1[i+1] = _channel2[i+1];
+				}
+}