6 files changed, 1064 insertions, 0 deletions
diff --git a/skidder/ read this.txt b/skidder/ read this.txt
new file mode 100755
index 0000000..926b6c3
--- /dev/null
+++ b/skidder/ read this.txt
@@ -0,0 +1,28 @@
+These are the source code files files for the Destroy FX VST plugins pack.  
+More information about them, as well as ready-to-use plugins, can be found 
+at our web page:  
+	http://www.smartelectronix.com/~destroyfx/
+Also included in this package are CodeWarrior 6 project files & Visual 
+Studio 6 project files which will hopefully make compiling the plugins a 
+little easier for you.
+
+All of the plugins use the VST standard, & should be (nearly) 
+source-portable to any platform which supports VST.  Some advanced 
+features may not work on all platforms or in all hosts.
+
+These plugins are Copyright (c) Marc Poirier & Tom Murphy 7.  You can use 
+them in your music however you like, without royalties.  You can also 
+modify them to your liking.  However, if you distribute them (or 
+derivative/modifed versions of them), then you must also distribute the 
+source package in order to be in compliance with the license.  This 
+software is distributed under the terms of the Gnu Public License; see the 
+file COPYING for details.
+
+This software comes with no warranty (see the file COPYING).
+
+
+
+
+If you make any nice modifications or fix anything, please let us know:  
+	destroyfx@smartelectronix.com
+	pi@attacksyour.net
diff --git a/skidder/copying b/skidder/copying
new file mode 100755
index 0000000..c6cddae
--- /dev/null
+++ b/skidder/copying
@@ -0,0 +1,341 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+     Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+   Everyone is permitted to copy and distribute verbatim copies
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+
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+  The licenses for most software are designed to take away your
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+Foundation's software and to any other program whose authors commit to
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+  To do so, attach the following notices to the program.  It is safest
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+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
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+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    You should have received a copy of the GNU General Public License
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+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
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+Also add information on how to contact you by electronic and paper mail.
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+If the program is interactive, make it output a short notice like this
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+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
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+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
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+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/skidder/makefile b/skidder/makefile
new file mode 100755
index 0000000..dcecc91
--- /dev/null
+++ b/skidder/makefile
@@ -0,0 +1,46 @@
+CXX=g++-3.0
+CFLAGS=-O6 -mcpu=pentiumpro -g -g
+FLAGS=-DPD
+
+FLEXTPATH=/usr/local/lib/pd/externs/flext
+DFXINC=../dfx-library
+
+INCLUDES=/usr/local/lib/pd/include $(FLEXTPATH) $(DFXINC)
+FLEXTLIB=$(FLEXTPATH)/flext.a
+
+LIBS=m
+
+PDEXTRA=/usr/local/lib/pd/extra
+
+TARGET=skidder~.pd_linux
+
+SRCS=skidder.cpp ../dfx-library/TempoRateTable.cpp
+
+all: $(TARGET)
+
+%.o : %.cpp %.hpp
+	$(CXX) -c $(CFLAGS) $(FLAGS) $(patsubst %,-I%,$(INCLUDES)) $< -o $@
+
+$(DFXINC)/%.o : $(DFXINC)/%.cpp
+	$(CXX) -c $(CFLAGS) $(FLAGS) $(patsubst %,-I%,$(INCLUDES)) $< -o $@
+
+$(TARGET) : $(patsubst %.cpp,%.o,$(SRCS)) $(FLEXTLIB) 
+	$(CXX) $(LDFLAGS) -shared $^ $(patsubst %,-l%,$(LIBS)) -o $@ 
+	strip --strip-unneeded $@
+	chmod 755 $@
+
+install: $(TARGET)
+	chown root.root $^ 
+	cp $^ $(PDEXTRA)
+
+.PHONY: clean
+clean:
+	rm -f *.o $(TARGET)
+	
+
+
+
+
+
+
+
diff --git a/skidder/skidder.cpp b/skidder/skidder.cpp
new file mode 100755
index 0000000..67f88c8
--- /dev/null
+++ b/skidder/skidder.cpp
@@ -0,0 +1,374 @@
+/*
+    dfx skidder : an effect plugin
+    Copyright (C) 2000, Marc Poirier
+    Copyright (C) 2002, martin pi
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/*-------------- by Marc Poirier  ][  December 2000 -------------*/
+/*   pd parts : � 2002, martin pi */
+
+#ifndef __skidder
+#include "skidder.hpp"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+
+
+//-----------------------------------------------------------------------------
+// initializations & such
+
+skidder::skidder(int argc, t_atom *argv) {
+
+	post("_ ____  ---- :: _______  ___ _____ _ skidder~ ");
+
+	tempoRateTable = new TempoRateTable;
+//	m_setup();				// initialize a fresh skid cycle
+	
+	AddInSignal(2);
+	AddInFloat(6);
+	AddOutSignal(2);
+	SetupInOut();  
+
+	fTempo = tempoUnscaled(120.0f);
+	currentTempoBPS = oldTempoBPS = tempoScaled(fTempo) / 60.0f;
+
+	FLEXT_ADDMETHOD( 1, setRate);
+	FLEXT_ADDMETHOD_F(0,"temposync",setTempoSync);
+	FLEXT_ADDMETHOD( 2, setTempoRate);
+	FLEXT_ADDMETHOD_F(0,"rrf",setRateRandFactor);
+	FLEXT_ADDMETHOD( 3, setTempo);
+	FLEXT_ADDMETHOD( 4, setPulsewidth);
+	FLEXT_ADDMETHOD_F(0,"pwrm",setPulsewidthRandMin);
+	FLEXT_ADDMETHOD( 5, setSlope);
+	FLEXT_ADDMETHOD( 6, setFloor);
+	FLEXT_ADDMETHOD_F(0,"frm",setFloorRandMin);
+	FLEXT_ADDMETHOD( 7, setPan);
+	FLEXT_ADDMETHOD_F(0,"noise",setNoise);
+
+	post("_ ____ ____ _");
+
+	srand((unsigned int)time(NULL));	// sets a seed value for rand() from the system clock
+}
+
+
+//-----------------------------------------------------------------------------------------
+// titles of each parameter
+
+
+void skidder::m_help() {
+
+		post(" __ ---- %s %f", "1          rate  [ Hz ] ",fRate);
+		post(" __ ---- %s %f", "temposync  tempo sync   ",fTempoSync);
+		post(" __ ---- %s %f", "2          tempo rate  [ cycles/beat ]",fTempoRate);
+		post(" __ ---- %s %f", "rrf        rate random factor",fRateRandFactor);
+		post(" __ ---- %s %f", "3          tempo [ bpm ]",fTempo);
+		post(" __ ---- %s %f", "4          pulsewidth  [ % of cycle ]",fPulsewidth);
+		post(" __ ---- %s %f", "pwrm       pulsewidth random min.  [ % of cycle ]",fPulsewidthRandMin);
+		post(" __ ---- %s %f", "5          slope  [ ms ]",fSlope);
+		post(" __ ---- %s %f", "6          floor  [ dB ]",fFloor);
+		post(" __ ---- %s %f", "frm        floor random min.  [ dB ]",fFloorRandMin);
+		post(" __ ---- %s %f", "7          stereo spread[ amount ]",fPan);
+		post(" __ ---- %s %f", "noise      rupture  ",fNoise);
+}
+
+
+
+// GIMME class:
+FLEXT_NEW_TILDE_G("skidder~", skidder)
+
+
+void skidder::m_signal(int n, float *const *in, float *const *out) {
+
+	// directly move everything to the vst part	
+	processReplacing((float **)in, (float **)out,(long)n, true);
+}  // end m_signal
+
+//-----------------------------------------------------------------------------------------
+// this gets called when the plugin is de-activated
+
+void skidder::m_setup() {
+
+	state = valley;
+	valleySamples = 0;
+	panRander = 0.0f;
+	rms = 0.0f;
+	rmscount = 0;
+	randomFloor = 0.0f;
+	randomGainRange = 1.0f;
+
+	// deallocate the memory from these arrays
+//	if (tempoRateTable) delete tempoRateTable;
+	
+	
+	fRate 		= rateUnscaled(3.0f);	// 0.1304347826087
+	fTempoSync 	= 0.0f;			// default to no tempo sync; "free" control
+	fTempoRate 	= 0.333f;
+	fRateRandFactor = 0.0f;			// default to no randomness
+	fTempo 		= 0.0f;			// default to "auto" (i.e. get it from the host)
+	fPulsewidth 	= 0.5f;
+	fPulsewidthRandMin = 0.5f;
+	fSlope 		= 3.0f/SLOPEMAX;	// 0.2
+	fFloor 		= 0.0f;
+	fFloorRandMin 	= 0.0f;
+	fPan 		= 0.0f;
+	fNoise 		= 0.0f;
+	
+	
+}
+
+//-----------------------------------------------------------------------------------------
+void skidder::processSlopeIn()
+{
+	// dividing the growing slopeDur-slopeSamples by slopeDur makes ascending values
+	if (useRandomFloor)
+		amp = ( ((float)(slopeDur-slopeSamples)) * slopeStep * randomGainRange ) + randomFloor;
+	else
+		amp = ( ((float)(slopeDur-slopeSamples)) * slopeStep * gainRange ) + floor;
+
+	slopeSamples--;
+
+	if (slopeSamples <= 0)
+	{
+		state = plateau;
+	}
+}
+
+//-----------------------------------------------------------------------------------------
+void skidder::processPlateau()
+{
+
+	// amp in the plateau is 1.0, i.e. this sample is unaffected
+	amp = 1.0f;
+
+	plateauSamples--;
+
+	if (plateauSamples <= 0)
+	{
+		// average & then sqare the sample squareroots for the RMS value
+		rms = powf((rms/(float)rmscount), 2.0f);
+		// because RMS tends to be < 0.5, thus unfairly limiting rupture's range
+		rms *= 2.0f;
+		// avoids clipping or unexpected values (like wraparound)
+		if ( (rms > 1.0f) || (rms < 0.0f) )
+			rms = 1.0f;
+		rmscount = 0;	// reset the RMS counter
+		//
+		// set up the random floor values
+		useRandomFloor = fFloorRandMin < fFloor;
+		randomFloor = ( ((float)rand()*ONE_DIV_RAND_MAX) * gainScaled(fFloor-fFloorRandMin) ) 
+							+ gainScaled(fFloorRandMin);
+		randomGainRange = 1.0f - randomFloor;	// the range of the skidding on/off gain
+		//
+		if (slopeDur > 0)
+		{
+			state = slopeOut;
+			slopeSamples = slopeDur; // refill slopeSamples
+			slopeStep = 1.0f / (float)slopeDur;	// calculate the fade increment scalar
+		}
+		else
+			state = valley;
+	}
+}
+
+
+//-----------------------------------------------------------------------------------------
+void skidder::processSlopeOut()
+{
+	// dividing the decrementing slopeSamples by slopeDur makes descending values
+	if (useRandomFloor)
+		amp = ( ((float)slopeSamples) * slopeStep * randomGainRange ) + randomFloor;
+	else
+		amp = ( ((float)slopeSamples) * slopeStep * gainRange ) + floor;
+
+	slopeSamples--;
+
+	if (slopeSamples <= 0)
+	{
+		state = valley;
+	}
+}
+
+//-----------------------------------------------------------------------------------------
+void skidder::processValley(float SAMPLERATE)
+{
+  float rateRandFactor = rateRandFactorScaled(fRateRandFactor);	// stores the real value
+  float cycleRate;	// the base current skid rate value
+  float randFloat, randomRate;	// the current randomized rate value
+  float fPulsewidthRandomized;	// stores the latest randomized pulsewidth 0.0 - 1.0 value
+  bool barSync = false;	// true if we need to sync up with the next bar start
+  long countdown;
+
+
+	if (useRandomFloor)
+		amp = randomFloor;
+	else
+		amp = floor;
+
+	valleySamples--;
+
+	if (valleySamples <= 0)
+	{
+		rms = 0.0f;	// reset rms now because valley is over
+		//
+		// This is where we figure out how many samples long each 
+		// envelope section is for the next skid cycle.
+		//
+		if (onOffTest(fTempoSync))	// the user wants to do tempo sync / beat division rate
+		{
+			cycleRate = currentTempoBPS * (tempoRateTable->getScalar(fTempoRate));
+			// set this true so that we make sure to do the measure syncronisation later on
+		}
+		else
+			cycleRate = rateScaled(fRate);
+		//
+		if (fRateRandFactor > 0.0f)
+		{
+			// get a random value from 0.0 to 1.0
+			randFloat = (float)rand() * ONE_DIV_RAND_MAX;
+			// square-scale the random value & then scale it with the random rate range
+			randomRate = ( randFloat * randFloat * 
+							((cycleRate*rateRandFactor)-(cycleRate/rateRandFactor)) ) + 
+							(cycleRate/rateRandFactor);
+			cycleSamples = (long) (SAMPLERATE / randomRate);
+			barSync = false;	// we can't do the bar sync if the skids durations are random
+		}
+		else
+			cycleSamples = (long) (SAMPLERATE / cycleRate);
+		//
+		if (fPulsewidth > fPulsewidthRandMin)
+		{
+			fPulsewidthRandomized = ( ((float)rand()*ONE_DIV_RAND_MAX) * (fPulsewidth-fPulsewidthRandMin) ) + fPulsewidthRandMin;
+			pulseSamples = (long) ( ((float)cycleSamples) * pulsewidthScaled(fPulsewidthRandomized) );
+		}
+		else
+			pulseSamples = (long) ( ((float)cycleSamples) * pulsewidthScaled(fPulsewidth) );
+		valleySamples = cycleSamples - pulseSamples;
+		slopeSamples = (long) ((SAMPLERATE/1000.0f)*(fSlope*(SLOPEMAX)));
+		slopeDur = slopeSamples;
+		slopeStep = 1.0f / (float)slopeDur;	// calculate the fade increment scalar
+		plateauSamples = pulseSamples - (slopeSamples * 2);
+		if (plateauSamples < 1)	// this shrinks the slope to 1/3 of the pulse if the user sets slope too high
+		{
+			slopeSamples = (long) (((float)pulseSamples) / 3.0f);
+			slopeDur = slopeSamples;
+			slopeStep = 1.0f / (float)slopeDur;	// calculate the fade increment scalar
+			plateauSamples = pulseSamples - (slopeSamples * 2);
+		}
+
+		// go to slopeIn next if slope is not 0.0, otherwise go to plateau
+		if (slopeDur > 0)
+			state = slopeIn;
+		else
+			state = plateau;
+
+		// this puts random float values from -1.0 to 1.0 into panRander
+		panRander = ( ((float)rand()*ONE_DIV_RAND_MAX) * 2.0f ) - 1.0f;
+
+	} //end of the "valley is over" if-statement
+}
+
+//-----------------------------------------------------------------------------------------
+float skidder::processOutput(float in1, float in2, float pan)
+{
+	// output noise
+	if ( (state == valley) && (fNoise != 0.0f) )
+		// out gets random noise with samples from -1.0 to 1.0 times the random pan times rupture times the RMS scalar
+		return ((((float)rand()*ONE_DIV_RAND_MAX)*2.0f)-1.0f) * pan * fNoise_squared * rms;
+
+	// do regular skidding output
+	else
+	{
+		// only output a bit of the first input
+		if (pan <= 1.0f)
+			return in1 * pan * amp;
+		// output all of the first input & a bit of the second input
+		else
+			return ( in1 + (in2*(pan-1.0f)) ) * amp;
+	}
+}
+
+//-----------------------------------------------------------------------------------------
+void skidder::processReplacing(float **inputs, float **outputs, long sampleFrames, bool replacing) {
+
+  float *in1  = inputs[0];
+  float *in2  = inputs[1];
+  float *out1 = outputs[0];
+  float *out2 = outputs[1];
+
+  float SAMPLERATE = Samplerate();
+	// just in case the host responds with something wacky
+	if (SAMPLERATE <= 0.0f)   SAMPLERATE = 44100.0f;
+
+  long samplecount;
+
+
+	floor = gainScaled(fFloor);	// the parameter scaled real value
+	gainRange = 1.0f - floor;	// the range of the skidding on/off gain
+	useRandomFloor = (fFloorRandMin < fFloor);
+
+	// figure out the current tempo if we're doing tempo sync
+	if (onOffTest(fTempoSync))
+	{
+		// calculate the tempo at the current processing buffer
+		currentTempoBPS = tempoScaled(fTempo) / 60.0f;
+
+	}
+
+	for (samplecount=0; (samplecount < sampleFrames); samplecount++)
+	{
+		switch (state)
+		{
+			case slopeIn:
+				// get the average sqareroot of the current input samples
+				rms += sqrtf( fabsf(((*in1)+(*in2))*0.5f) );
+				rmscount++;	// this counter is later used for getting the mean
+				processSlopeIn();
+				break;
+			case plateau:
+				rms += sqrtf( fabsf(((*in1)+(*in2))*0.5f) );
+				rmscount++;
+				processPlateau();
+				break;
+			case slopeOut:
+				processSlopeOut();
+				break;
+			case valley:
+				processValley(SAMPLERATE);
+				break;
+		}
+
+		// ((panRander*fPan)+1.0) ranges from 0.0 to 2.0
+		if (replacing)
+		{
+			*out1 = processOutput( *in1, *in2, ((panRander*fPan)+1.0f) );
+			*out2 = processOutput( *in2, *in1, (2.0f - ((panRander*fPan)+1.0f)) );
+		}
+		else
+		{
+			*out1 += processOutput( *in1, *in2, ((panRander*fPan)+1.0f) );
+			*out2 += processOutput( *in2, *in1, (2.0f - ((panRander*fPan)+1.0f)) );
+		}
+		// move forward in the i/o sample streams
+		in1++;
+		in2++;
+		out1++;
+		out2++;
+	}
+}
diff --git a/skidder/skidder.hpp b/skidder/skidder.hpp
new file mode 100755
index 0000000..2a689e7
--- /dev/null
+++ b/skidder/skidder.hpp
@@ -0,0 +1,224 @@
+/*
+    dfx skidder : an effect plugin
+    Copyright (C) 2000, Marcberg Soft und Hardware GmbH, All Rights Reserved
+    Copyright (C) 2002, martin pi
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/*---------------------------------------------------------------
+
+   � 2000, Marcberg Soft und Hardware GmbH, All Rights Reserved
+   pd parts : � 2002, martin pi
+
+---------------------------------------------------------------*/
+
+#ifndef __skidder
+#define __skidder
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "dfxmisc.h"
+//#include "vstchunk.h"
+#include "TempoRateTable.h"
+
+#include "flext.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 202)
+#error You need at least flext version 0.2.2 
+#endif
+
+
+
+//----------------------------------------------------------------------------- 
+// these are the plugin parameters:
+enum
+{
+	kRate,
+	kTempoSync,
+	kTempoRate,
+	kRateRandFactor,
+	kTempo,
+	kPulsewidth,
+	kPulsewidthRandMin,
+	kSlope,
+	kPan,
+	kNoise,
+
+	kFloor,
+	kFloorRandMin,
+
+	NUM_PARAMETERS
+};
+
+//----------------------------------------------------------------------------- 
+// these are the 4 states of the process:
+enum
+{
+	slopeIn,
+	plateau,
+	slopeOut,
+	valley
+};
+
+//----------------------------------------------------------------------------- 
+// constants & macros
+
+#define RATEMIN 0.3f
+#define RATEMAX 21.0f
+// this is for converting from parameter entries to the real values
+#define rateScaled(A)   ( paramRangePowScaled((A), RATEMIN, RATEMAX, 1.65f) )
+#define rateUnscaled(A)   ( paramRangePowUnscaled((A), RATEMIN, RATEMAX, 1.65f) )
+
+#define RATE_RAND_FACTOR_MIN 1.0f
+#define RATE_RAND_FACTOR_MAX 9.0f
+#define rateRandFactorScaled(A)   ( paramRangeSquaredScaled((A), RATE_RAND_FACTOR_MIN, RATE_RAND_FACTOR_MAX) )
+#define rateRandFactorUnscaled(A)   ( paramRangeSquaredUnscaled((A), RATE_RAND_FACTOR_MIN, RATE_RAND_FACTOR_MAX) )
+
+#define PULSEMIN 0.001f
+#define PULSEMAX 0.999f
+#define pulsewidthScaled(A)   ( paramRangeScaled((A), PULSEMIN, PULSEMAX) )
+#define pulsewidthUnscaled(A)   ( paramRangeUnscaled((A), PULSEMIN, PULSEMAX) )
+
+#define TEMPO_MIN 39.0f
+#define TEMPO_MAX 480.0f
+#define tempoScaled(A)   ( paramRangeScaled((A), TEMPO_MIN, TEMPO_MAX) )
+#define tempoUnscaled(A)   ( paramRangeUnscaled((A), TEMPO_MIN, TEMPO_MAX) )
+
+#define SLOPEMAX 15.0f
+
+// this is for scaling the slider values of rupture (more emphasis on lower values, dB-style)
+#define fNoise_squared (fNoise*fNoise)
+
+#define gainScaled(A) ((A)*(A)*(A))
+#define normalize(f,a,b)	((((f < b) ? f : b) > a) ? f : a)
+
+
+//----------------------------------------------------------------------------- 
+
+class skidder : public flext_dsp {
+
+	FLEXT_HEADER(skidder, flext_dsp)
+
+public:
+	skidder(int argc, t_atom *argv);
+//	~skidder();
+
+	virtual void m_signal(int, t_sample *const *, t_sample *const *);
+	virtual void m_help();
+
+//	virtual void process(float **inputs, float **outputs, long sampleFrames);
+	virtual void m_setup();
+
+//	virtual void setParameter(long index, float value);
+
+
+protected:
+	void processSlopeIn();
+	void processPlateau();
+	void processSlopeOut();
+	void processValley(float SAMPLERATE);
+	float processOutput(float in1, float in2, float pan);
+	void processReplacing(float **inputs, float **outputs, long sampleFrames, bool replacing);
+
+	// the parameters
+	float fRate, fTempoSync, fTempoRate, fRateRandFactor, fTempo;
+	float fPulsewidth, fPulsewidthRandMin, fSlope, fPan, fNoise, fFloor, fFloorRandMin;
+	float floor, gainRange;	// a scaled version of fFloor & the difference between that & 1.0
+
+	float randomFloor, randomGainRange;
+	bool useRandomFloor;
+	float amp; 		// output sample scalar
+	long cycleSamples, pulseSamples, slopeSamples, slopeDur, plateauSamples, valleySamples;	// sample counters
+	float slopeStep;	// the scalar for each step of the fade during a slope in or out
+	float panRander;	// the actual pan value for each cycle
+	int state;		// the state of the process
+	float rms;
+	long rmscount;
+
+	float currentTempoBPS;	// tempo in beats per second
+	float oldTempoBPS;	// holds the previous value of currentTempoBPS for comparison
+	bool tempoHasChanged;	// tells the GUI that the rate random range display needs updating
+	bool mustUpdateTempoHasChanged;
+	TempoRateTable *tempoRateTable;	// a table of tempo rate values
+	
+	
+	FLEXT_CALLBACK_F(setRate)
+	void setRate(float f) {
+		fRate = rateUnscaled(f);
+	}
+
+	FLEXT_CALLBACK_F(setTempoSync)
+	void setTempoSync(float f) {
+		fTempoSync = 1;
+	}
+
+	FLEXT_CALLBACK_F(setTempoRate)
+	void setTempoRate(float f) {
+		fTempoRate = rateUnscaled(f);
+	}
+
+	FLEXT_CALLBACK_F(setRateRandFactor)
+	void setRateRandFactor(float f) {
+		fRateRandFactor = rateRandFactorUnscaled(f);
+	}
+
+	FLEXT_CALLBACK_F(setTempo)
+	void setTempo(float f) {
+		fTempo = tempoUnscaled(f);
+	}
+	
+	FLEXT_CALLBACK_F(setPulsewidth)
+	void setPulsewidth(float f) {
+		fPulsewidth = pulsewidthUnscaled(f);
+	}
+	
+	FLEXT_CALLBACK_F(setPulsewidthRandMin)
+	void setPulsewidthRandMin(float f) {
+		fPulsewidthRandMin = pulsewidthUnscaled(f);
+	}
+	
+	FLEXT_CALLBACK_F(setSlope)
+	void setSlope(float f) {
+		fSlope = f/SLOPEMAX;
+	}
+		
+	FLEXT_CALLBACK_F(setFloor)
+	void setFloor(float f) {
+		fFloor = f;
+	}
+		
+	FLEXT_CALLBACK_F(setFloorRandMin)
+	void setFloorRandMin(float f) {
+		fFloorRandMin = f;
+	}
+		
+	FLEXT_CALLBACK_F(setPan)
+	void setPan(float f) {
+		fPan = f;
+	}
+	
+	FLEXT_CALLBACK_F(setNoise)
+	void setNoise(float f) {
+		fNoise = normalize(f,0,1);
+	}
+
+//	FLEXT_CALLBACK(m_print)
+
+
+};
+
+#endif
diff --git a/skidder/skidder~.pd b/skidder/skidder~.pd
new file mode 100644
index 0000000..e41e00b
--- /dev/null
+++ b/skidder/skidder~.pd
@@ -0,0 +1,51 @@
+#N canvas 234 140 957 522 10;
+#X obj 335 373 skidder~;
+#X obj 335 105 osc~ 440;
+#X obj 335 400 dac~ 1 2;
+#X msg 135 356 help;
+#X obj 342 133 osc~ 1000;
+#X floatatom 356 212 5 0 0;
+#X floatatom 371 269 5 0 0;
+#X floatatom 386 303 5 0 0;
+#X floatatom 364 250 5 0 0;
+#X floatatom 378 287 5 0 0;
+#X floatatom 349 195 5 0 0;
+#X floatatom 342 234 12 0 0;
+#X msg 209 196 temposync 1;
+#X msg 209 166 rrf 0.1;
+#X msg 209 258 pwrm 50;
+#X msg 209 288 frm 2000;
+#X msg 210 229 noise 0;
+#X msg 432 163 200000;
+#X text 6 4 dfx skidder ___ _;
+#X text 35 19 by destruct fx;
+#X text 35 33 linux port by martin pi;
+#X text 556 5 more from dfx :: http://smartelectronix.com/~destroyfx
+;
+#X text 648 20 more from pi :: http://attacksyour.net/pi;
+#X text 13 465 turn on temposync and frm to make it work in pd ( i
+did not want to change the internals \, so it is a bit trickyy). besides
+this is not finished at all ....;
+#X text 482 421 Skidder turns your sound on & off. While that may not
+sound very rewarding \, you have a great deal of control over the rate
+\, pulsewidth \, on/off slope \, panning width \, etc. You can also
+relinquish some control to randomization. Skidder can also sync with
+your song tempo & can be triggered by MIDI notes.;
+#X connect 0 0 2 0;
+#X connect 0 1 2 1;
+#X connect 1 0 0 0;
+#X connect 3 0 0 0;
+#X connect 4 0 0 1;
+#X connect 5 0 0 3;
+#X connect 6 0 0 5;
+#X connect 7 0 0 7;
+#X connect 8 0 0 4;
+#X connect 9 0 0 6;
+#X connect 10 0 0 2;
+#X connect 11 0 0 1;
+#X connect 12 0 0 0;
+#X connect 13 0 0 0;
+#X connect 14 0 0 0;
+#X connect 15 0 0 0;
+#X connect 16 0 0 0;
+#X connect 17 0 11 0;