""

svn path=/trunk/; revision=314

1 files changed, 122 insertions, 0 deletions

diff --git a/externals/grill/flext/source/flstk.cpp b/externals/grill/flext/source/flstk.cpp
new file mode 100644
index 00000000..85d52751
--- /dev/null
+++ b/externals/grill/flext/source/flstk.cpp
@@ -0,0 +1,122 @@
+/* 
+
+Copyright (c) 2002 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 "flext.h"
+#include "flstk.h"
+
+flext_stk::flext_stk():
+	inobjs(0),outobjs(0),
+	inobj(NULL),outobj(NULL),
+	smprt(0),blsz(0)
+{}
+
+bool flext_stk::Init()
+{
+	bool ret = flext_dsp::Init();
+	inobjs = CntInSig();
+	outobjs = CntOutSig();
+	return ret;
+}
+
+void flext_stk::Exit()
+{
+	ClearObjs();
+	flext_dsp::Exit();
+}
+
+void flext_stk::ClearObjs()
+{
+	FreeObjs();
+
+	if(inobj) {
+		for(int i = 0; i < inobjs; ++i) delete inobj[i]; 
+		delete[] inobj; inobj = NULL; inobjs = 0;
+	}
+	if(outobj) {
+		for(int i = 0; i < outobjs; ++i) delete outobj[i];
+		delete[] outobj; outobj = NULL; outobjs = 0;
+	}
+}
+
+void flext_stk::m_dsp(int n,t_sample *const *in,t_sample *const *out)
+{
+	// called on every rebuild of the dsp chain
+
+	int i;
+	
+	if(Blocksize() != blsz || Samplerate() != smprt) {
+		// block size or sample rate has changed... rebuild all objects
+
+		ClearObjs();
+
+		smprt = Samplerate();
+		blsz = Blocksize();
+		Stk::setSampleRate(smprt); 
+
+		// set up sndobjs for inlets and outlets
+		inobj = new Inlet *[inobjs];
+		for(i = 0; i < inobjs; ++i) {
+			inobj[i] = new Inlet(in[i],blsz);
+		}
+		outobj = new Outlet *[outobjs];
+		for(i = 0; i < outobjs; ++i) outobj[i] = new Outlet(out[i],blsz);
+
+		NewObjs();
+	}
+	else {
+		// assign changed input/output vectors
+
+		for(i = 0; i < inobjs; ++i) inobj[i]->SetBuf(in[i]);
+		for(i = 0; i < outobjs; ++i) outobj[i]->SetBuf(out[i]);
+	}
+}
+
+void flext_stk::m_signal(int n,t_sample *const *in,t_sample *const *out)
+{
+	ProcessObjs();
+}
+
+
+// inlet class
+
+flext_stk::Inlet::Inlet(const t_sample *b,int v): 
+	buf(b),vecsz(v),
+	index(0)
+{}
+
+t_sample flext_stk::Inlet::tick() 
+{ 
+	if(++index >= vecsz) index = 0; 
+	return lastOut(); 
+}
+
+t_sample *flext_stk::Inlet::tick(t_sample *vector,unsigned int vectorSize)
+{
+	for(unsigned int i = 0; i < vectorSize; i++) vector[i] = tick();
+	return vector;
+}
+
+
+// outlet class
+
+flext_stk::Outlet::Outlet(t_sample *b,int v): 
+	buf(b),vecsz(v),
+	index(0)
+{}
+
+void flext_stk::Outlet::tick(t_sample s) 
+{ 
+	buf[index] = s;
+	if(++index >= vecsz) index = 0; 
+}
+
+void flext_stk::Outlet::tick(const t_sample *vector,unsigned int vectorSize)
+{
+	for(unsigned int i = 0; i < vectorSize; i++) tick(vector[i]);
+}
+