1 files changed, 154 insertions, 0 deletions
diff --git a/src/sndobj/SndIO.cpp b/src/sndobj/SndIO.cpp
new file mode 100644
index 0000000..6f79feb
--- /dev/null
+++ b/src/sndobj/SndIO.cpp
@@ -0,0 +1,154 @@
+ 
+////////////////////////////////////////////////////////////////////////
+// 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
+
+/////////////////////////////////////////////////////////
+//  SndIO.cpp: implementation of the SndIO class
+//
+//
+//
+//
+
+#include "SndIO.h"
+
+
+SndIO::SndIO(short channels, short bits, SndObj** inputlist,
+	     int vecsize, double sr){
+
+  int n;
+  m_channels = channels;
+  m_bits = bits;
+  m_sampsize = bits/8;
+  m_vecpos = 0;
+  m_sr = sr;
+
+  if(m_channels){
+    if(!(m_IOobjs = new SndObj*[m_channels])){
+      m_error = 2;
+#ifdef DEBUG
+      cout << ErrorMessage();
+#endif
+      return;
+    }
+
+    if(inputlist)  // if an array of input objects exists	 
+      for(n=0;n<m_channels;n++){	     
+	m_IOobjs[n]=inputlist[n]; // set output channels 
+      }
+    else 
+      for(n=0;n<m_channels;n++) m_IOobjs[n] = 0; // zero the pointers
+    m_output = NULL;
+    // vecsize is in frames! m_samples is vecsize in samples
+    SetVectorSize(vecsize);
+    if(m_vecsize == 0){
+      m_IOobjs = 0;
+      m_output = 0;
+      m_samples = 0;
+    }
+    m_error = 0;
+  }
+}
+
+  SndIO::~SndIO(){
+
+    delete[] m_IOobjs;
+    delete[] m_output;
+
+  }
+
+  void
+    SndIO::SetVectorSize(int vecsize){
+     m_samples = vecsize*m_channels;
+    if(m_output) delete[] m_output;
+    if(!(m_output = new double[m_samples])){
+      m_error = 1;
+#ifdef DEBUG
+      cout << ErrorMessage();
+#endif
+      m_vecsize = m_vecsize_max = 0;
+      return;
+    }
+    m_vecsize = vecsize;
+    m_vecsize_max = vecsize;
+    m_vecpos = 0;
+  }
+
+  short
+    SndIO::Write(){
+
+    if(m_IOobjs){
+      for(m_vecpos = 0; m_vecpos < m_vecsize; m_vecpos++)
+	for(int n = 0; n < m_channels; n++)
+	  if(m_IOobjs[n])
+	    cout << m_IOobjs[n]->Output(m_vecpos) << "\n";
+      return 1;
+    }
+    else{
+      m_error = 4;
+      return 0;
+    }
+  }
+
+  short
+    SndIO::Read(){
+    for(m_vecpos = 0; m_vecpos < m_samples; m_vecpos+=m_channels)
+      for(int n = 0; n < m_channels; n++)
+	cin >> m_output[n+m_vecpos];
+    return 1;
+  }
+
+  char* SndIO::ErrorMessage(){
+	 
+    char* message;
+   
+    switch(m_error){
+
+    case 0:
+      message = "No error\n";
+      break; 
+
+    case 1:
+      message = "Failed to allocate vector memory\n";
+      break;
+
+    case 2:
+      message = "Failed to allocate input object memory\n";
+      break;
+
+    case 3:
+      message = "Sampling rate mismatch\n";
+      break;
+
+    case 4:
+      message = "No input objects \n";
+      break;
+
+    default:
+      message = "Undefined error\n";
+      break;
+  
+    }
+
+    return message;
+
+  }
+
+