//------------------------------------------------------------------------
//
//  VisDataLoader.h
//  
//  This pure abstract class allows for a common interface to various
//  Data Loaders.  Each Data Loader can load, parse, and create the data
//  in its own way.  It only has to support the LoadData() method, which 
//  will be called when it is time to load the wave/spec data, and the 
//  IsValid method.
//
//   -------------------------------------------------------------------
//  * COPYRIGHT 2001, Greg Ratajik and Ratajik Software                 *
//  * All rights Reserved                                               *
//   -------------------------------------------------------------------
//
//  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.
//
//  More information about this program can be found at:
//          http://www.ratajik.com/VisInterface

//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//------------------------------------------------------------------------
#pragma once



//------------------------------------------------------------------------
//                                                                           
//       Class: CVisDatLoader
//                                                                           
// Description: Pure abstract data loader class.
//
//     Methods
//          of  
//    Interest: LoadData()
//                 - MUST define.  The child should fill up to VIS_BUFFER_SIZE  
//                   of data into any of the 4 passed buffers.
//
//              IsValid()
//                 - MUST Define.  Return TRUE if the Data Loader is valid.
//
//                            C H A N G E    L O G                           
// ===================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development                            
//_________________________________________________________________________
class CVisDataLoader
{
public:
    virtual ~CVisDataLoader( void ) { };

    virtual bool LoadData(unsigned char *pWaveLeft, unsigned char *pWaveRight, unsigned char *pSpecLeft, unsigned char *pSpecRight) = NULL;

    virtual bool IsValid( void ) = NULL;

protected:

private:

};