Moved project over to Git

1 files changed, 129 insertions, 0 deletions

diff --git a/sndobj/AdSyn.cpp b/sndobj/AdSyn.cpp
new file mode 100644
index 0000000..2b534d7
--- /dev/null
+++ b/sndobj/AdSyn.cpp
@@ -0,0 +1,129 @@
+ 
+////////////////////////////////////////////////////////////////////////
+// This file is part of the SndObj library
+//
+// 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 
+//
+// Copyright (c)Victor Lazzarini, 1997-2004
+// See License.txt for a disclaimer of all warranties
+// and licensing information
+
+#include "AdSyn.h"
+
+AdSyn::AdSyn(){
+}
+
+AdSyn::AdSyn(SinAnal* input, int maxtracks, Table* table,
+	     float pitch, float scale, int vecsize, float sr)	  
+  :ReSyn(input, maxtracks, table, pitch, scale, 1.f, vecsize, sr){
+}
+
+AdSyn::~AdSyn(){
+}
+
+short
+AdSyn::DoProcess() {
+	
+  if(m_input){
+		
+    float ampnext,amp,freq,freqnext,phase;
+    int i3, i, j, ID, track;
+    int notcontin = 0;
+    bool contin = false;
+    int oldtracks = m_tracks;
+    float* tab = m_ptable->GetTable(); 
+    if((m_tracks = ((SinAnal *)m_input)->GetTracks()) >
+       m_maxtracks) m_tracks = m_maxtracks;
+    memset(m_output, 0, sizeof(float)*m_vecsize);
+		
+    // for each track
+    i = j = 0;
+    while(i < m_tracks*3){
+			
+      i3 = i/3;
+      ampnext =  m_input->Output(i)*m_scale;
+      freqnext = m_input->Output(i+1)*m_pitch; 
+      ID = ((SinAnal *)m_input)->GetTrackID(i3);
+
+      j = i3+notcontin;    
+   			
+      if(i3 < oldtracks-notcontin){
+
+	if(m_trackID[j]==ID){	
+	  // if this is a continuing track  	
+	  track = j;
+	  contin = true;	
+	  freq = m_freqs[track];
+	  phase = m_phases[track];
+	  amp = m_amps[track];
+	}
+	else {
+	  // if this is  a dead track
+	  contin = false;
+	  track = j;
+	  freqnext = freq = m_freqs[track];
+	  phase = m_phases[track];
+	  amp = m_amps[track]; 
+	  ampnext = 0.f;
+	}
+      }			
+      else{ 
+	// new tracks
+	contin = true;
+	track = -1;
+	freq = freqnext;
+	phase = -freq*m_factor;
+	amp = 0.f;
+      }
+		
+      // interpolation & track synthesis loop
+      float a,f,frac,incra,incrph;
+      int ndx;
+      a = amp;
+      f = freq;
+      incra = (ampnext - amp)/m_vecsize;
+      incrph = (freqnext - freq)/m_vecsize;
+      for(m_vecpos=0; m_vecpos < m_vecsize; m_vecpos++){
+	if(m_enable) {    
+	  // table lookup oscillator
+	  phase += f*m_ratio;
+	  while(phase < 0) phase += m_size;
+	  while(phase >= m_size) phase -= m_size;
+	  ndx = Ftoi(phase);
+	  frac = phase -  ndx;
+	  m_output[m_vecpos] += a*(tab[ndx] + (tab[ndx+1] - tab[ndx])*frac);
+	  a += incra;
+	  f += incrph;
+	}
+	else m_output[m_vecpos] = 0.f;		
+      }
+
+      // keep amp, freq, and phase values for next time
+      if(contin){
+	m_amps[i3] = ampnext;
+	m_freqs[i3] = freqnext;
+	m_phases[i3] = phase;
+	m_trackID[i3] = ID;    
+	i += 3;
+      } else notcontin++;
+    } 
+    return 1;
+  }
+  else {
+    m_error  = 1;
+    return 0;
+  }
+ 
+}