//------------------------------------------------------------------------
//
//  SampleDataLoader.h
//  
//  This class shows how to extend the CVisDataLoader class to load some
//  data.  Currently, it only does a Random or Wave waveform.
//  of CVisInterface pointers.
//
//   -------------------------------------------------------------------
//  * 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                                      
// ============ =========   =========== ================================
//              02-05-01    Ratajik     Initial Development
//------------------------------------------------------------------------
#pragma once
#include "VisDataLoader.h"

//
// Suppored types of data to create
// and load.
// 
enum DataLoaderType
{
    TYPE_RANDOM,
    TYPE_WAVE
};

//------------------------------------------------------------------------
//                                                                           
//       Class: CSampleDataLoader
//                                                                           
// Description: Load some sample data to be rendered.
//
//     Methods
//          of  
//    Interest: LoadData()
//                 - Fill up to VIS_BUFFER_SIZE  
//                   of data into any of the 4 passed buffers.
//
//              IsValid()
//                 - Always returns true for this class. (always valid)
//
//                            C H A N G E    L O G                           
// ===================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development                            
//_________________________________________________________________________
class CSampleDataLoader : public CVisDataLoader
{
public:
    CSampleDataLoader();
    virtual ~CSampleDataLoader(){}
    
    virtual bool LoadData(unsigned char *pWaveLeft, unsigned char *pWaveRight, unsigned char *pSpecLeft, unsigned char *pSpecRight);    

    virtual bool IsValid( void );
 
    void SetType(DataLoaderType type) {m_typeData = type;}
    void ShowWave( bool bDoWave) { m_bDoWave = bDoWave;}
    void ShowSpec( bool bDoSpec) { m_bDoSpec = bDoSpec;}

protected:    
    
    
private:
    DataLoaderType  m_typeData;
    int             m_nLast;
    bool            m_bDoSpec;
    bool            m_bDoWave;
};