//-----------------------------------------------------------------------------
//
// Copyright 1993-1996 id Software
// Copyright 1999-2016 Randy Heit
// Copyright 2002-2016 Christoph Oelckers
//
// 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 3 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, see http://www.gnu.org/licenses/
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:
//		The not so system specific sound interface.
//
//-----------------------------------------------------------------------------


#ifndef __S_MUSIC__
#define __S_MUSIC__

#include "zstring.h"
#include "tarray.h"
#include "name.h"

void S_CreateStream();
void S_PauseStream(bool pause);
void S_StopStream();
void S_SetStreamVolume(float vol);


//
void S_InitMusic ();
void S_StartMusic ();


// Start music using <music_name>
bool S_StartMusic (const char *music_name);

// Start music using <music_name>, and set whether looping
bool S_ChangeMusic (const char *music_name, int order=0, bool looping=true, bool force=false);

// Start playing a cd track as music
bool S_ChangeCDMusic (int track, unsigned int id=0, bool looping=true);

void S_RestartMusic ();
void S_MIDIDeviceChanged(int newdev);

int S_GetMusic (const char **name);

// Stops the music for sure.
void S_StopMusic (bool force);

// Stop and resume music, during game PAUSE.
void S_PauseMusic ();
void S_ResumeMusic ();

//
// Updates music & sounds
//
void S_UpdateMusic ();

struct MidiDeviceSetting
{
	int device;
	FString args;
};

typedef TMap<FName, FName> MusicAliasMap;
typedef TMap<FName, MidiDeviceSetting> MidiDeviceMap;
typedef TMap<FName, float> MusicVolumeMap;

extern MusicAliasMap MusicAliases;
extern MidiDeviceMap MidiDevices;
extern MusicVolumeMap MusicVolumes;

class MusInfo;
struct MusPlayingInfo
{
	FString name;
	MusInfo* handle;
	int   baseorder;
	bool  loop;
	FString	 LastSong;			// last music that was played
};

extern MusPlayingInfo mus_playing;

extern float relative_volume, saved_relative_volume;

// Note for later when the OPL player is ported.
// DN3D and related games use "d3dtimbr.tmb"

#endif