/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.  
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
*/



#ifndef _RBAUDIO_H
#define _RBAUDIO_H

#define RBA_MEDIA_CHANGED	-1

typedef struct _RBACHANNELCTL {
	unsigned int out0in, out0vol;
	unsigned int out1in, out1vol;
	unsigned int out2in, out2vol;
	unsigned int out3in, out3vol;
} RBACHANNELCTL;


#if defined(__NT__) 
	extern void RBAInit(void);	//drive a == 0, drive b == 1
#else
   extern void RBAInit(ubyte cd_drive_num);	//drive a == 0, drive b == 1
#endif
extern void RBARegisterCD(void);
extern long RBAGetDeviceStatus(void);
extern int RBAPlayTrack(int track);
extern int RBAPlayTracks(int first, int last);	//plays tracks first through last, inclusive
extern int RBACheckMediaChange();
extern long	RBAGetHeadLoc(int *min, int *sec, int *frame);
extern int	RBAPeekPlayStatus(void);
extern void RBAStop(void);
extern void RBASetStereoAudio(RBACHANNELCTL *channels);
extern void RBASetQuadAudio(RBACHANNELCTL *channels);
extern void RBAGetAudioInfo(RBACHANNELCTL *channels);
extern void RBASetChannelVolume(int channel, int volume);
extern void RBASetVolume(int volume);
extern int	RBAEnabled(void);
extern void RBADisable(void);
extern void RBAEnable(void);
extern int	RBAGetNumberOfTracks(void);
extern void	RBAPause();
extern int	RBAResume();

//return the track number currently playing.  Useful if RBAPlayTracks() 
//is called.  Returns 0 if no track playing, else track number
int RBAGetTrackNum();

#endif