1 files changed, 139 insertions, 0 deletions
diff --git a/sndobj/SndIO.h b/sndobj/SndIO.h
new file mode 100644
index 0000000..2516880
--- /dev/null
+++ b/sndobj/SndIO.h
@@ -0,0 +1,139 @@
+ 
+////////////////////////////////////////////////////////////////////////
+// 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.h: interface of the SndIO base class.               //
+//                                                            //
+//                                                            //
+//                                                            //
+//************************************************************//
+#ifndef _SNDIO_H
+#define _SNDIO_H
+#include <math.h>
+#include "SndObj.h"
+
+enum{FLOATSAM=0, BYTESAM, SHORTSAM_LE};
+const int SHORTSAM_BE = -2;
+const int S24LE = 3;
+const int S24BE = -3;
+const int LONGSAM = 4;
+
+enum{SND_INPUT, SND_OUTPUT, SND_IO};
+
+
+#ifdef WIN
+const int SHORTSAM = SHORTSAM_LE;
+#endif
+
+#ifdef OSS
+const int SHORTSAM = SHORTSAM_LE;
+#endif
+
+#ifdef ALSA
+const int SHORTSAM = SHORTSAM_LE;
+const int LONGSAM_LE = LONGSAM;
+const int LONGSAM_BE = 5;
+const int TWENTY_FOUR = 6;
+const int TWENTYFOUR_LE = TWENTY_FOUR;
+const int TWENTYFOUR_BE = 7;
+#endif
+
+
+#ifdef SGI
+const int SHORTSAM = SHORTSAM_BE;
+#endif
+
+#if defined(MACOSX) && defined(WORDS_BIGENDIAN)
+const int SHORTSAM = SHORTSAM_BE;
+#endif
+
+#if defined(MACOSX) && !defined(WORDS_BIGENDIAN)
+const int SHORTSAM = SHORTSAM_LE;
+#endif
+
+
+
+struct _24Bit {
+  char s[3];
+};
+
+
+class SndIO {
+
+ protected:
+ 
+  SndObj**  m_IOobjs; 
+  float* m_output;
+  float m_sr;
+  short m_channels;
+  short m_bits;
+  int m_vecsize;
+  int m_vecsize_max;
+  int m_vecpos;
+  int m_error;
+  int m_samples;
+
+  short VerifySR(SndObj *InObj){      
+    if(InObj->GetSr() != m_sr) return 0;
+    else return 1;                           
+  }
+
+ public:
+  short m_sampsize;
+         
+  float GetSr(){ return m_sr; }
+  int   GetVectorSize() { return m_vecsize; }
+  void SetVectorSize(int vecsize);
+  void LimitVectorSize(int limit) {
+    if(limit <= m_vecsize_max){      
+              m_vecsize = limit; 
+	      m_samples = m_vecsize*m_channels;
+    }
+  }
+  void RestoreVectorSize(){ m_vecsize = m_vecsize_max; }
+  short GetChannels() { return m_channels; }
+  short GetSize() { return m_bits; }
+  float Output(int pos){ return m_output[pos]; }
+  float Output(int pos, int channel){
+    return m_output[(pos*m_channels)+(channel-1)];
+  }
+  short SetOutput(short channel, SndObj* input){
+    if(channel <= m_channels){                     
+      m_IOobjs[channel-1] = input;
+      return 1;
+    } else return 0;
+  }
+         
+  SndIO(short channels=1, short bits=16,SndObj** inputlist=0, 
+	int vecsize = DEF_VECSIZE, float sr = DEF_SR);
+  virtual ~SndIO();
+  virtual short Read();
+  virtual short Write();
+  virtual char* ErrorMessage();
+  int Error() { return m_error; }
+
+};
+
+
+
+#endif
+