Move library tree where it belongs

lib-src/libnyquist/nyquist/nyqstk/src/Generator.cpp

@@ -0,0 +1,56 @@
+/***************************************************/
+/*! \class Generator
+    \brief STK abstract unit generator parent class.
+
+    This class provides common functionality for
+    STK unit generator sample-source subclasses.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
+*/
+/***************************************************/
+
+#include "Generator.h"
+
+using namespace Nyq;
+
+Generator :: Generator() : Stk()
+{
+  lastOutput_ = 0.0;
+}
+
+Generator :: ~Generator()
+{
+}
+
+StkFloat Generator :: tick( void )
+{
+  return computeSample();
+}
+
+StkFrames& Generator :: tick( StkFrames& frames, unsigned int channel )
+{
+  if ( channel >= frames.channels() ) {
+    errorString_ << "Generator::tick(): channel and StkFrames arguments are incompatible!";
+    handleError( StkError::FUNCTION_ARGUMENT );
+  }
+
+  if ( frames.channels() == 1 ) {
+    for ( unsigned int i=0; i<frames.frames(); i++ )
+      frames[i] = computeSample();
+  }
+  else if ( frames.interleaved() ) {
+    unsigned int hop = frames.channels();
+    unsigned int index = channel;
+    for ( unsigned int i=0; i<frames.frames(); i++ ) {
+      frames[index] = computeSample();
+      index += hop;
+    }
+  }
+  else {
+    unsigned int iStart = channel * frames.frames();
+    for ( unsigned int i=0; i<frames.frames(); i++, iStart++ )
+      frames[iStart] = computeSample();
+  }
+
+  return frames;
+}