1 files changed, 80 insertions, 0 deletions
diff --git a/externals/grill/flext/tutorial/signal2/main.cpp b/externals/grill/flext/tutorial/signal2/main.cpp
new file mode 100644
index 00000000..1517b536
--- /dev/null
+++ b/externals/grill/flext/tutorial/signal2/main.cpp
@@ -0,0 +1,80 @@
+/* 
+flext tutorial - signal 2 
+
+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.  
+
+-------------------------------------------------------------------------
+
+This is an object showing varous parameters of the pd audio system
+*/
+
+// include flext header
+#include <flext.h>
+
+// check for appropriate flext version
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 300)
+#error You need at least flext version 0.3.0
+#endif
+
+
+// define the class that stands for a pd/Max object
+// Attention: the class name must be the same as the object name!! (without the ~)
+
+class signal2:
+	// inherit from flext dsp class
+	public flext_dsp
+{
+	// obligatory flext header (class name,base class name)
+	FLEXT_HEADER(signal2,flext_dsp)
+ 
+public:
+	// constructor
+	signal2();
+
+protected:
+	void m_bang();  // method for bang
+
+	// this virtual function is obligatory for objects derived from flext_dsp
+	virtual void m_signal(int n, float *const *in, float *const *out);
+
+private:
+	FLEXT_CALLBACK(m_bang);  // callback for method "m_bang" 
+};
+
+// instantiate the class
+FLEXT_NEW_DSP("signal2~",signal2)
+
+
+signal2::signal2()
+{ 
+	// define inlets:
+	// first inlet must always by of type anything (or signal for dsp objects)
+	AddInAnything();  // add one inlet for any message
+	
+	// add outlets for sample rate, block size, audio in and out channel count
+	AddOutFloat(1);
+	AddOutInt(3); // although PD knows no int type, flext does!
+	
+	// set up inlets and outlets - obligatory! 
+	SetupInOut(); 
+
+	// register methods
+	FLEXT_ADDBANG(0,m_bang);  // register method "m_bang" for bang message into inlet 0
+} 
+
+void signal2::m_bang()
+{
+	// output various parameters of the pd audio system
+	ToOutFloat(0,Samplerate()); 
+	ToOutInt(1,Blocksize()); 
+	ToOutInt(2,ChannelsIn()); 
+	ToOutInt(3,ChannelsOut()); 
+}
+
+void signal2::m_signal(int, float *const *, float *const *)
+{
+	// do no dsp work
+}
+