From e7b24dd7da9de84e218f7d7be623f0cf8b9d1b9c Mon Sep 17 00:00:00 2001
From: "N.N." <martin_pi@users.sourceforge.net>
Date: Mon, 17 Feb 2003 14:12:16 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r415, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/dfx/; revision=416
---
 buffer_override/bufferoverrideFormalities.cpp | 183 ++++++++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100755 buffer_override/bufferoverrideFormalities.cpp

(limited to 'buffer_override/bufferoverrideFormalities.cpp')

diff --git a/buffer_override/bufferoverrideFormalities.cpp b/buffer_override/bufferoverrideFormalities.cpp
new file mode 100755
index 0000000..428a7b5
--- /dev/null
+++ b/buffer_override/bufferoverrideFormalities.cpp
@@ -0,0 +1,183 @@
+/*------------------- by Marc Poirier  ][  March 2001 -------------------*/
+
+#ifndef __bufferoverride
+#include "bufferoverride.hpp"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+
+//-------------------------------------------------------------------------
+// titles of each parameter
+/*
+	fDivisor		"buffer divisor"
+	fBuffer			"forced buffer size"
+	fBufferTempoSync	"forced buffer tempo sync"
+	fBufferInterrupt	"stuck buffer"
+	fDivisorLFOrate		"divisor LFO rate"
+	fDivisorLFOdepth	"divisor LFO depth"
+	fDivisorLFOshape	"divisor LFO shape"
+	fDivisorLFOtempoSync	"divisor LFO tempo sync"
+	fBufferLFOrate		"buffer LFO rate"
+	fBufferLFOdepth		"buffer LFO depth"
+	fBufferLFOshape		"buffer LFO shape"
+	fBufferLFOtempoSync	"buffer LFO tempo sync"
+	fSmooth			"smooth"
+	fDryWetMix		"dry/wet mix"
+	fPitchbend		"pitchbend"
+	fTempo			"tempo"
+*/
+
+
+//-----------------------------------------------------------------------------
+// initializations & such
+
+bufferoverride::bufferoverride(int argc, t_atom *argv) {
+
+	buffer1 = NULL;
+
+	SUPER_MAX_BUFFER = (long) ((44100.0f / MIN_ALLOWABLE_BPS) * 4.0f);
+
+	// allocate memory for these structures
+	tempoRateTable	= new TempoRateTable;
+	divisorLFO	= new LFO;
+	bufferLFO	= new LFO;
+
+	suspend();
+	initPresets();
+
+	fTempo = tempoUnscaled(120.0f);
+	currentTempoBPS = tempoScaled(fTempo) / 60.0f;
+
+	
+	post("_ ____bufferoverride~ --_ - __ _____");
+
+	SAMPLERATE = (int) Samplerate();
+//	blocksize = Blocksize(); 
+	
+/*	fTomsound = (float)GetFloat(argv[0]);	// creation arguments 
+	fQuality  = (float)GetFloat(argv[1]);	// [ yet they default to reasonable values ]
+	drymix    = (float)GetFloat(argv[2]);
+	ireplace  =   (int)GetFloat(argv[3]);*/
+
+	AddInSignal();
+	AddInFloat(9);
+	AddOutSignal();         // 1 audio out [ == AddOutSignal(1) ]
+	
+	SetupInOut();           // set up inlets and outlets. 
+				// Must get called once!
+
+	// Now we need to bind the handler function to our
+	// inlets, 
+	
+/*	fDivisor		"buffer divisor"
+	fBuffer			"forced buffer size"
+	fBufferTempoSync	"forced buffer tempo sync"
+	fBufferInterrupt	"stuck buffer"
+	fDivisorLFOrate		"divisor LFO rate"
+	fDivisorLFOdepth	"divisor LFO depth"
+	fDivisorLFOshape	"divisor LFO shape"
+	fDivisorLFOtempoSync	"divisor LFO tempo sync"
+	fBufferLFOrate		"buffer LFO rate"
+	fBufferLFOdepth		"buffer LFO depth"
+	fBufferLFOshape		"buffer LFO shape"
+	fBufferLFOtempoSync	"buffer LFO tempo sync"
+	fSmooth			"smooth"
+	fDryWetMix		"dry/wet mix"
+	fPitchbend		"pitchbend"
+	fTempo			"tempo" 
+	
+*/	
+	FLEXT_ADDMETHOD( 1,setDivisor);
+	FLEXT_ADDMETHOD( 2,setBuffer);
+	FLEXT_ADDMETHOD( 3,setTempo);
+	FLEXT_ADDMETHOD( 4,setDivisorLFOrate);
+	FLEXT_ADDMETHOD( 5,setDivisorLFOdepth);
+	FLEXT_ADDMETHOD( 6,setDivisorLFOshape);
+	FLEXT_ADDMETHOD( 7,setBufferLFOrate);
+	FLEXT_ADDMETHOD( 8,setBufferLFOdepth);
+	FLEXT_ADDMETHOD( 9,setBufferLFOshape);
+
+	post("_ ____ ____ _");
+
+}
+
+
+// GIMME class:
+FLEXT_NEW_TILDE_G("bufferoverride~", bufferoverride)
+
+
+//-------------------------------------------------------------------------
+bufferoverride::~bufferoverride() {
+
+	// deallocate the memory from these arrays
+	if (buffer1) delete[] buffer1;
+	if (tempoRateTable) delete tempoRateTable;
+	if (divisorLFO) delete divisorLFO;
+	if (bufferLFO) delete bufferLFO;
+
+
+}
+
+//-------------------------------------------------------------------------
+void bufferoverride::suspend()
+{
+	// setting the values like this will restart the forced buffer in the next process()
+	currentForcedBufferSize = 1;
+	writePos = readPos = 1;
+	minibufferSize = 1;
+	prevMinibufferSize = 0;
+	smoothcount = smoothDur = 0;
+	sqrtFadeIn = sqrtFadeOut = 1.0f;
+
+	divisorLFO->reset();
+	bufferLFO->reset();
+}
+
+//-------------------------------------------------------------------------
+void bufferoverride::createAudioBuffers() {
+
+	// update the sample rate value
+	SAMPLERATE = (float)Samplerate();
+	// just in case the host responds with something wacky
+	if (SAMPLERATE <= 0.0f)
+		SAMPLERATE = 44100.0f;
+	long oldMax = SUPER_MAX_BUFFER;
+	SUPER_MAX_BUFFER = (long) ((SAMPLERATE / MIN_ALLOWABLE_BPS) * 4.0f);
+
+	// if the sampling rate (& therefore the max buffer size) has changed, 
+	// then delete & reallocate the buffers according to the sampling rate
+	if (SUPER_MAX_BUFFER != oldMax) 	{
+		if (buffer1 != NULL)
+			delete[] buffer1;
+		buffer1 = NULL;
+	}
+	
+	if (buffer1 == NULL) buffer1 = new float[SUPER_MAX_BUFFER];
+}
+
+
+//-------------------------------------------------------------------------
+void bufferoverride::initPresets()
+{
+
+	fDivisor = bufferDivisorUnscaled(27.0f);
+	fBuffer = forcedBufferSizeUnscaled(81.0f);
+	fBufferTempoSync	= 0.0f;
+	fBufferInterrupt	= 1.0f;
+	fSmooth			= 0.06f;
+	fDryWetMix		= 1.0f;
+	fTempo			= 0.0f;
+
+	divisorLFO->fRate = paramSteppedUnscaled(6.6f, NUM_TEMPO_RATES);
+	divisorLFO->fDepth = 0.333f;
+	divisorLFO->fShape = LFOshapeUnscaled(kSineLFO);
+	divisorLFO->fTempoSync = 1.0f;
+	bufferLFO->fRate = 0.0f;
+	bufferLFO->fDepth = 0.06f;
+	bufferLFO->fShape = LFOshapeUnscaled(kSawLFO);
+	bufferLFO->fTempoSync = 1.0f;
+}
+
-- 
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