////////////////////////////////////////////////////////////
// sound.h
//
// Header file for sound device classes for EDrive, a multiplatform 
// driving simulator.
//
// Copyright 2004 by Evan Alexander Weaver
//
// Despite the copyright, this is free software. See edrive.cpp for details.
//
// Date last modified: 31 May 2004

#ifndef _edrive_sound_h_
#define _edrive_sound_h_

#include "platform.h"
#if ED_DIRECTX_9_AUDIO //***************************************************
    #include <windows.h>
    #include <windowsx.h>
    #include <dmusici.h>
#else //********************************************************************
    #include <AL/al.h>
#endif //*******************************************************************

// A sound effect
class sound {
    #if ED_DIRECTX_9_AUDIO //***********************************************
	IDirectMusicSegment8 *seg;     // Segment containing the sound
	IDirectMusicAudioPath8 *path;  // Audiopath on which segment is played
	IDirectSoundBuffer8 *buf;      // Sound buffer in the audiopath
    #else //****************************************************************
	ALuint buf;  // sound buffer
	ALuint src;  // audio source on which buffer is played
    #endif //***************************************************************

    bool ok; // is the sound playable?

  public:
    // sound is initially empty
    sound();

    sound(const sound &);            // intentionally omitted...
    sound &operator=(const sound &); // ...to prevent copies

    ~sound();

    // stop and unload sound
    void destroy();

    // play the sound
    void play();

    // stop playing the sound
    void stop();

    // associate the sound with an audio file
    #if ED_DIRECTX_9_AUDIO
	bool create(HWND hwnd, const char *file, bool repeat = true);
    #else
	bool create(int *pargc, char **argv, const char *file,
	 bool repeat = true);
    #endif

    // return the frequency of the sound
    unsigned int frequency();

    // change the frequency of the sound
    void frequency(unsigned int);

    // delete low level sound buffer for the sound
    void deletebuffer();
};
#endif