music.c
author Stephane Peter <megastep@lokigames.com>
Sat, 23 Oct 1999 03:31:21 +0000
changeset 4 5c4485704b30
parent 3 f6dabb779e45
child 7 e73da9dc4bdc
permissions -rw-r--r--
Added fading in/out of music and samples.
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/*
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    MIXERLIB:  An audio mixer library based on the SDL library
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    Copyright (C) 1997-1999  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    5635-34 Springhouse Dr.
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    Pleasanton, CA 94588 (USA)
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    slouken@devolution.com
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <SDL/SDL_endian.h>
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#include <SDL/SDL_audio.h>
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#include "mixer.h"
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/* The music command hack is UNIX specific */
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#ifndef unix
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#undef CMD_MUSIC
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#endif
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#ifdef CMD_MUSIC
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#include "music_cmd.h"
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#endif
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#ifdef WAV_MUSIC
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#include "wavestream.h"
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#endif
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#ifdef MOD_MUSIC
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#include "mikmod.h"
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#endif
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#ifdef MID_MUSIC
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#include "timidity.h"
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#endif
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#ifdef MP3_MUSIC
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#include <smpeg/smpeg.h>
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static SDL_AudioSpec used_mixer;
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#endif
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int music_active = 1;
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static int music_loops = 0;
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static char *music_cmd = NULL;
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static int samplesize;
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static Mix_Music *music_playing = 0;
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static SDL_mutex *music_lock;
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static int music_volume;
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static int music_swap8;
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static int music_swap16;
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struct _Mix_Music {
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	enum {
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		MUS_CMD,
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		MUS_WAV,
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		MUS_MOD,
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		MUS_MID,
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		MUS_MP3
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	} type;
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	union {
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#ifdef CMD_MUSIC
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		MusicCMD *cmd;
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#endif
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#ifdef WAV_MUSIC
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		WAVStream *wave;
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#endif
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#ifdef MOD_MUSIC
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		UNIMOD *module;
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#endif
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#ifdef MID_MUSIC
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		MidiSong *midi;
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#endif
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#ifdef MP3_MUSIC
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		SMPEG *mp3;
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#endif
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	} data;
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	Mix_Fading fading;
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	int fade_volume;
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	int fade_length;
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	Uint32 ticks_fade;
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	int error;
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};
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static int timidity_ok;
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/* Mixing function */
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void music_mixer(void *udata, Uint8 *stream, int len)
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{
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	int i;
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	if ( music_playing ) {
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		if( music_playing->fading != MIX_NO_FADING ) {
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			Uint32 ticks = SDL_GetTicks() - music_playing->ticks_fade;
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			if( ticks > music_playing->fade_length ) {
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				if ( music_playing->fading == MIX_FADING_OUT ) {
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					music_volume = music_playing->fade_volume;
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					music_playing->fading = MIX_NO_FADING;
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					Mix_HaltMusic();
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					return;
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				}
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				music_playing->fading = MIX_NO_FADING;
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			} else {
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				if ( music_playing->fading == MIX_FADING_OUT ) {
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					Mix_VolumeMusic((music_playing->fade_volume * (music_playing->fade_length-ticks)) 
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									/ music_playing->fade_length);
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				} else { /* Fading in */
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					Mix_VolumeMusic((music_playing->fade_volume * ticks) 
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									/ music_playing->fade_length);
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				}
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			}
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		}
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		switch (music_playing->type) {
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#ifdef CMD_MUSIC
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			case MUS_CMD:
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				/* The playing is done externally */
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				break;
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#endif
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#ifdef WAV_MUSIC
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			case MUS_WAV:
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				WAVStream_PlaySome(stream, len);
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				break;
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#endif
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#ifdef MOD_MUSIC
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			case MUS_MOD:
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				VC_WriteBytes((SBYTE *)stream, len);
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				if ( music_swap8 ) {
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					Uint8 *dst;
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					dst = stream;
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					for ( i=len; i; --i ) {
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						*dst++ ^= 0x80;
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					}
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				} else
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				if ( music_swap16 ) {
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					Uint8 *dst, tmp;
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					dst = stream;
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					for ( i=(len/2); i; --i ) {
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						tmp = dst[0];
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						dst[0] = dst[1];
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						dst[1] = tmp;
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						dst += 2;
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					}
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				}
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				break;
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#endif
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#ifdef MID_MUSIC
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			case MUS_MID:
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				Timidity_PlaySome(stream, len/samplesize);
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				break;
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#endif
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#ifdef MP3_MUSIC
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		    case MUS_MP3:
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			    SMPEG_playAudio(music_playing->data.mp3, stream, len);
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				break;
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#endif
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			default:
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				/* Unknown music type?? */
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				break;
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		}
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	}
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}
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/* Initialize the music players with a certain desired audio format */
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int open_music(SDL_AudioSpec *mixer)
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{
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	int music_error;
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	music_error = 0;
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#ifdef WAV_MUSIC
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	if ( WAVStream_Init(mixer) < 0 ) {
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		++music_error;
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	}
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#endif
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#ifdef MOD_MUSIC
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	/* Set the MikMod music format */
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	music_swap8 = 0;
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	music_swap16 = 0;
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	switch (mixer->format) {
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		case AUDIO_U8:
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		case AUDIO_S8: {
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			if ( mixer->format == AUDIO_S8 ) {
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				music_swap8 = 1;
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			}
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			md_mode = 0;
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		}
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		break;
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		case AUDIO_S16LSB:
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		case AUDIO_S16MSB: {
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			/* See if we need to correct MikMod mixing */
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#if SDL_BYTEORDER == SDL_LIL_ENDIAN
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			if ( mixer->format == AUDIO_S16MSB ) {
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#else
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			if ( mixer->format == AUDIO_S16LSB ) {
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#endif
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				music_swap16 = 1;
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			}
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			md_mode = DMODE_16BITS;
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		}
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		break;
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		default: {
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			SDL_SetError("Unknown hardware audio format");
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			++music_error;
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		}
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	}
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	if ( mixer->channels > 1 ) {
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		if ( mixer->channels > 2 ) {
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			SDL_SetError("Hardware uses more channels than mixer");
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			++music_error;
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		}
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		md_mode |= DMODE_STEREO;
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	}
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	samplesize     = mixer->size/mixer->samples;
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	md_mixfreq     = mixer->freq;
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	md_device      = 0;
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	md_volume      = 96;
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	md_musicvolume = 128;
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	md_sndfxvolume = 128;
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	md_pansep      = 128;
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	md_reverb      = 0;
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	MikMod_RegisterAllLoaders();
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	MikMod_RegisterAllDrivers();
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	if ( MikMod_Init() ) {
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		SDL_SetError("%s", _mm_errmsg[_mm_errno]);
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		++music_error;
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	}
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#endif
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#ifdef MID_MUSIC
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	if ( Timidity_Init(mixer->freq,
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			mixer->format, mixer->channels, mixer->samples) == 0 ) {
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		timidity_ok = 1;
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	} else {
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		timidity_ok = 0;
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	}
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#endif
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#ifdef MP3_MUSIC
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	/* Keep a copy of the mixer */
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	used_mixer = *mixer;
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#endif
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	music_playing = 0;
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	/* Initialize the music lock */
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	music_lock = SDL_CreateMutex();
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	if ( music_error ) {
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		return(-1);
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	}
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	Mix_VolumeMusic(SDL_MIX_MAXVOLUME);
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	return(0);
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}
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/* Load a music file */
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Mix_Music *Mix_LoadMUS(const char *file)
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{
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	FILE *fp;
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	unsigned char magic[5];
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	Mix_Music *music;
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	/* Figure out what kind of file this is */
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	fp = fopen(file, "rb");
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	if ( (fp == NULL) || !fread(magic, 4, 1, fp) ) {
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		if ( fp != NULL ) {
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			fclose(fp);
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		}
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		SDL_SetError("Couldn't read from '%s'", file);
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		return(NULL);
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	}
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	magic[4] = '\0';
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	fclose(fp);
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	/* Allocate memory for the music structure */
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	music = (Mix_Music *)malloc(sizeof(Mix_Music));
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	if ( music == NULL ) {
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		SDL_SetError("Out of memory");
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		return(NULL);
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	}
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	music->error = 0;
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#ifdef CMD_MUSIC
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	if ( music_cmd ) {
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		music->type = MUS_CMD;
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		music->data.cmd = MusicCMD_LoadSong(music_cmd, file);
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		if ( music->data.cmd == NULL ) {
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			music->error = 1;
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		}
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	} else
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#endif
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#ifdef WAV_MUSIC
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	/* WAVE files have the magic four bytes "RIFF"
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	   AIFF files have the magic 12 bytes "FORM" XXXX "AIFF"
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	 */
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	if ( (strcmp(magic, "RIFF") == 0) || (strcmp(magic, "FORM") == 0) ) {
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		music->type = MUS_WAV;
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		music->data.wave = WAVStream_LoadSong(file, magic);
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		if ( music->data.wave == NULL ) {
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			music->error = 1;
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		}
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	} else
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#endif
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#ifdef MID_MUSIC
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	/* MIDI files have the magic four bytes "MThd" */
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	if ( strcmp(magic, "MThd") == 0 ) {
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		music->type = MUS_MID;
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		if ( timidity_ok ) {
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			music->data.midi = Timidity_LoadSong((char *)file);
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			if ( music->data.midi == NULL ) {
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				SDL_SetError("%s", Timidity_Error());
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				music->error = 1;
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			}
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		}
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		else {
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			SDL_SetError("%s", Timidity_Error());
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			music->error = 1;
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		}
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	} else
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#endif
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#ifdef MP3_MUSIC
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	if ( magic[0]==0xFF && (magic[1]&0xF0)==0xF0) {
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		SMPEG_Info info;
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		music->type = MUS_MP3;
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		music->data.mp3 = SMPEG_new(file, &info, 0);
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		if(!info.has_audio){
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			SDL_SetError("MPEG file does not have any audio stream.");
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			music->error = 1;
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		}else{
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			SMPEG_actualSpec(music->data.mp3, &used_mixer);
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		}
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	} else
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#endif
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#ifdef MOD_MUSIC
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	if ( 1 ) {
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		music->type = MUS_MOD;
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		music->data.module = MikMod_LoadSong((char *)file, 64);
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		if ( music->data.module == NULL ) {
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			SDL_SetError("%s", _mm_errmsg[_mm_errno]);
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			music->error = 1;
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		}
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	} else
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#endif
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	{
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		SDL_SetError("Unrecognized music format");
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		music->error = 1;
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	}
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	if ( music->error ) {
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		free(music);
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		music = NULL;
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	}
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	return(music);
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}
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/* Free a music chunk previously loaded */
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void Mix_FreeMusic(Mix_Music *music)
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{
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	if ( music ) {
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		/* Caution: If music is playing, mixer will crash */
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		if ( music == music_playing ) {
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			if ( music->fading == MIX_FADING_OUT ) {
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				/* Wait for the fade out to finish */
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				while(music->fading == MIX_FADING_OUT)
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					SDL_Delay(100);
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			} else {
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				Mix_HaltMusic(); /* Stop it immediately */
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			}
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		}
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		switch (music->type) {
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#ifdef CMD_MUSIC
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			case MUS_CMD:
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				MusicCMD_FreeSong(music->data.cmd);
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				break;
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#endif
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#ifdef WAV_MUSIC
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			case MUS_WAV:
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				WAVStream_FreeSong(music->data.wave);
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				break;
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#endif
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#ifdef MOD_MUSIC
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   392
			case MUS_MOD:
slouken@0
   393
				MikMod_FreeSong(music->data.module);
slouken@0
   394
				break;
slouken@0
   395
#endif
slouken@0
   396
#ifdef MID_MUSIC
slouken@0
   397
			case MUS_MID:
slouken@0
   398
				Timidity_FreeSong(music->data.midi);
slouken@0
   399
				break;
slouken@0
   400
#endif
slouken@0
   401
#ifdef MP3_MUSIC
slouken@0
   402
		    case MUS_MP3:
slouken@0
   403
				SMPEG_delete(music->data.mp3);
slouken@0
   404
				break;
slouken@0
   405
#endif
slouken@0
   406
			default:
slouken@0
   407
				/* Unknown music type?? */
slouken@0
   408
				break;
slouken@0
   409
		}
slouken@0
   410
		free(music);
slouken@0
   411
	}
slouken@0
   412
}
slouken@0
   413
slouken@0
   414
/* Play a music chunk.  Returns 0, or -1 if there was an error.
slouken@0
   415
*/
slouken@0
   416
int Mix_PlayMusic(Mix_Music *music, int loops)
slouken@0
   417
{
slouken@0
   418
	/* Don't play null pointers :-) */
slouken@0
   419
	if ( music == NULL ) {
slouken@0
   420
		return(-1);
slouken@0
   421
	}
megastep@4
   422
	/* If the current music is fading out, wait for the fade to complete */
megastep@4
   423
	while ( music_playing && music_playing->fading==MIX_FADING_OUT ) {
megastep@4
   424
		SDL_Delay(100);
megastep@4
   425
	}
slouken@0
   426
	switch (music->type) {
slouken@0
   427
#ifdef CMD_MUSIC
slouken@0
   428
		case MUS_CMD:
slouken@0
   429
			MusicCMD_SetVolume(music_volume);
slouken@0
   430
			MusicCMD_Start(music->data.cmd);
slouken@0
   431
			break;
slouken@0
   432
#endif
slouken@0
   433
#ifdef WAV_MUSIC
slouken@0
   434
		case MUS_WAV:
slouken@0
   435
			WAVStream_SetVolume(music_volume);
slouken@0
   436
			WAVStream_Start(music->data.wave);
slouken@0
   437
			break;
slouken@0
   438
#endif
slouken@0
   439
#ifdef MOD_MUSIC
slouken@0
   440
		case MUS_MOD:
slouken@0
   441
			Player_SetVolume(music_volume);
slouken@0
   442
			Player_Start(music->data.module);
slouken@0
   443
			Player_SetPosition(0);
slouken@0
   444
			break;
slouken@0
   445
#endif
slouken@0
   446
#ifdef MID_MUSIC
slouken@0
   447
		case MUS_MID:
slouken@0
   448
			Timidity_SetVolume(music_volume);
slouken@0
   449
			Timidity_Start(music->data.midi);
slouken@0
   450
			break;
slouken@0
   451
#endif
slouken@0
   452
#ifdef MP3_MUSIC
slouken@0
   453
	    case MUS_MP3:
slouken@0
   454
			SMPEG_enableaudio(music->data.mp3,1);
slouken@0
   455
			SMPEG_enablevideo(music->data.mp3,0);
slouken@0
   456
			SMPEG_setvolume(music->data.mp3,((float)music_volume/(float)MIX_MAX_VOLUME)*100.0);
slouken@0
   457
			SMPEG_loop(music->data.mp3, loops);
slouken@0
   458
			SMPEG_play(music->data.mp3);
slouken@0
   459
			break;
slouken@0
   460
#endif
slouken@0
   461
		default:
slouken@0
   462
			/* Unknown music type?? */
slouken@0
   463
			return(-1);
slouken@0
   464
	}
slouken@0
   465
	music_active = 1;
slouken@0
   466
	music_playing = music;
megastep@4
   467
	music_playing->fading = MIX_NO_FADING;
megastep@4
   468
	return(0);
megastep@4
   469
}
megastep@4
   470
megastep@4
   471
/* Fade in a music over "ms" milliseconds */
megastep@4
   472
int Mix_FadeInMusic(Mix_Music *music, int loops, int ms)
megastep@4
   473
{
megastep@4
   474
	if ( music && music_volume > 0 ) { /* No need to fade if we can't hear it */
megastep@4
   475
		music->fade_volume = music_volume;
megastep@4
   476
		music_volume = 0;
megastep@4
   477
		if(Mix_PlayMusic(music,loops)<0)
megastep@4
   478
			return(-1);
megastep@4
   479
		music_playing->fading = MIX_FADING_IN;
megastep@4
   480
		music_playing->fade_length = ms;
megastep@4
   481
		music_playing->ticks_fade = SDL_GetTicks();
megastep@4
   482
	}
slouken@0
   483
	return(0);
slouken@0
   484
}
slouken@0
   485
slouken@0
   486
/* Set the music volume */
slouken@0
   487
int Mix_VolumeMusic(int volume)
slouken@0
   488
{
slouken@0
   489
	int prev_volume;
slouken@0
   490
slouken@0
   491
	prev_volume = music_volume;
megastep@4
   492
	if ( volume < 0 ) {
megastep@4
   493
		volume = 0;
megastep@4
   494
	}
megastep@4
   495
	if ( volume > SDL_MIX_MAXVOLUME ) {
megastep@4
   496
		volume = SDL_MIX_MAXVOLUME;
megastep@4
   497
	}
megastep@4
   498
	music_volume = volume;
megastep@4
   499
	if ( music_playing ) {
megastep@4
   500
		switch (music_playing->type) {
slouken@0
   501
#ifdef CMD_MUSIC
megastep@4
   502
		case MUS_CMD:
megastep@4
   503
			MusicCMD_SetVolume(music_volume);
megastep@4
   504
			break;
slouken@0
   505
#endif
slouken@0
   506
#ifdef WAV_MUSIC
megastep@4
   507
		case MUS_WAV:
megastep@4
   508
			WAVStream_SetVolume(music_volume);
megastep@4
   509
			break;
slouken@0
   510
#endif
slouken@0
   511
#ifdef MOD_MUSIC
megastep@4
   512
		case MUS_MOD:
megastep@4
   513
			Player_SetVolume(music_volume);
megastep@4
   514
			break;
slouken@0
   515
#endif
slouken@0
   516
#ifdef MID_MUSIC
megastep@4
   517
		case MUS_MID:
megastep@4
   518
			Timidity_SetVolume(music_volume);
megastep@4
   519
			break;
slouken@0
   520
#endif
slouken@0
   521
#ifdef MP3_MUSIC
megastep@4
   522
		case MUS_MP3:
megastep@4
   523
			SMPEG_setvolume(music_playing->data.mp3,((float)music_volume/(float)MIX_MAX_VOLUME)*100.0);
megastep@4
   524
			break;
slouken@0
   525
#endif
megastep@4
   526
		default:
megastep@4
   527
			/* Unknown music type?? */
megastep@4
   528
			break;
slouken@0
   529
		}
slouken@0
   530
	}
slouken@0
   531
	return(prev_volume);
slouken@0
   532
}
slouken@0
   533
slouken@0
   534
/* Halt playing of music */
slouken@0
   535
int Mix_HaltMusic(void)
slouken@0
   536
{
megastep@4
   537
	/* This function can be called both from the main program thread
megastep@4
   538
	   and from the SDL audio thread (when fading), so we need to ensure 
megastep@4
   539
	   that only one thread is running it at once */
megastep@4
   540
	SDL_mutexP(music_lock);
slouken@0
   541
	if ( music_playing ) {
slouken@0
   542
		switch (music_playing->type) {
slouken@0
   543
#ifdef CMD_MUSIC
slouken@0
   544
			case MUS_CMD:
slouken@0
   545
				MusicCMD_Stop(music_playing->data.cmd);
slouken@0
   546
				break;
slouken@0
   547
#endif
slouken@0
   548
#ifdef WAV_MUSIC
slouken@0
   549
			case MUS_WAV:
slouken@0
   550
				WAVStream_Stop();
slouken@0
   551
				break;
slouken@0
   552
#endif
slouken@0
   553
#ifdef MOD_MUSIC
slouken@0
   554
			case MUS_MOD:
slouken@0
   555
				Player_Stop();
slouken@0
   556
				break;
slouken@0
   557
#endif
slouken@0
   558
#ifdef MID_MUSIC
slouken@0
   559
			case MUS_MID:
slouken@0
   560
				Timidity_Stop();
slouken@0
   561
				break;
slouken@0
   562
#endif
slouken@0
   563
#ifdef MP3_MUSIC
slouken@0
   564
		    case MUS_MP3:
slouken@0
   565
				SMPEG_stop(music_playing->data.mp3);
slouken@0
   566
				break;
slouken@0
   567
#endif
slouken@0
   568
			default:
slouken@0
   569
				/* Unknown music type?? */
megastep@4
   570
				SDL_mutexV(music_lock);
slouken@0
   571
				return(-1);
slouken@0
   572
		}
megastep@4
   573
		if(music_playing->fading != MIX_NO_FADING) /* Restore volume */
megastep@4
   574
			music_volume = music_playing->fade_volume;
megastep@4
   575
		music_playing->fading = MIX_NO_FADING;
slouken@0
   576
		music_playing = 0;
slouken@0
   577
	}
megastep@4
   578
	SDL_mutexV(music_lock);
slouken@0
   579
	return(0);
slouken@0
   580
}
slouken@0
   581
megastep@4
   582
/* Progressively stop the music */
megastep@4
   583
int Mix_FadeOutMusic(int ms)
megastep@4
   584
{
megastep@4
   585
	if ( music_playing && music_playing->fading==MIX_NO_FADING ) {
megastep@4
   586
		if ( music_volume>0 ) {
megastep@4
   587
			music_playing->fading = MIX_FADING_OUT;
megastep@4
   588
			music_playing->fade_volume = music_volume;
megastep@4
   589
			music_playing->fade_length = ms;
megastep@4
   590
			music_playing->ticks_fade = SDL_GetTicks();
megastep@4
   591
			return(1);
megastep@4
   592
		}
megastep@4
   593
	}
megastep@4
   594
	return(0);
megastep@4
   595
}
megastep@4
   596
megastep@4
   597
Mix_Fading Mix_FadingMusic(void)
megastep@4
   598
{
megastep@4
   599
	if( music_playing )
megastep@4
   600
		return music_playing->fading;
megastep@4
   601
	return MIX_NO_FADING;
megastep@4
   602
}
megastep@4
   603
slouken@0
   604
/* Pause/Resume the music stream */
slouken@0
   605
void Mix_PauseMusic(void)
slouken@0
   606
{
slouken@0
   607
	if ( music_playing ) {
slouken@0
   608
		switch ( music_playing->type ) {
slouken@0
   609
#ifdef CMD_MUSIC
slouken@0
   610
		case MUS_CMD:
slouken@0
   611
			MusicCMD_Pause(music_playing->data.cmd);
slouken@0
   612
			break;
slouken@0
   613
#endif
slouken@0
   614
#ifdef MP3_MUSIC
slouken@0
   615
		case MUS_MP3:
slouken@0
   616
			SMPEG_pause(music_playing->data.mp3);
slouken@0
   617
			break;
slouken@0
   618
#endif
slouken@0
   619
		}
slouken@0
   620
	}
slouken@0
   621
	music_active = 0;
slouken@0
   622
}
megastep@4
   623
slouken@0
   624
void Mix_ResumeMusic(void)
slouken@0
   625
{
slouken@0
   626
	if ( music_playing ) {
slouken@0
   627
		switch ( music_playing->type ) {
slouken@0
   628
#ifdef CMD_MUSIC
slouken@0
   629
		case MUS_CMD:
slouken@0
   630
			MusicCMD_Resume(music_playing->data.cmd);
slouken@0
   631
			break;
slouken@0
   632
#endif
slouken@0
   633
#ifdef MP3_MUSIC
slouken@0
   634
		case MUS_MP3:
slouken@0
   635
			SMPEG_pause(music_playing->data.mp3);
slouken@0
   636
			break;
slouken@0
   637
#endif
slouken@0
   638
		}
slouken@0
   639
	}
slouken@0
   640
	music_active = 1;
slouken@0
   641
}
slouken@0
   642
slouken@0
   643
void Mix_RewindMusic(void)
slouken@0
   644
{
slouken@0
   645
	if ( music_playing ) {
slouken@0
   646
		switch ( music_playing->type ) {
slouken@0
   647
#ifdef MP3_MUSIC
slouken@0
   648
		case MUS_MP3:
slouken@0
   649
			SMPEG_rewind(music_playing->data.mp3);
slouken@0
   650
			break;
slouken@0
   651
#endif
slouken@0
   652
		}
slouken@0
   653
	}
slouken@0
   654
}
slouken@0
   655
slouken@0
   656
/* Check the status of the music */
slouken@0
   657
int Mix_PlayingMusic(void)
slouken@0
   658
{
slouken@0
   659
	if ( music_playing ) {
slouken@0
   660
		switch (music_playing->type) {
slouken@0
   661
#ifdef CMD_MUSIC
slouken@0
   662
			case MUS_CMD:
slouken@0
   663
				if (!MusicCMD_Active(music_playing->data.cmd)) {
slouken@0
   664
					music_playing = 0;
slouken@0
   665
				}
slouken@0
   666
				break;
slouken@0
   667
#endif
slouken@0
   668
#ifdef WAV_MUSIC
slouken@0
   669
			case MUS_WAV:
slouken@0
   670
				if ( ! WAVStream_Active() ) {
slouken@0
   671
					music_playing = 0;
slouken@0
   672
				}
slouken@0
   673
				break;
slouken@0
   674
#endif
slouken@0
   675
#ifdef MOD_MUSIC
slouken@0
   676
			case MUS_MOD:
slouken@0
   677
				if ( ! Player_Active() ) {
slouken@0
   678
					music_playing = 0;
slouken@0
   679
				}
slouken@0
   680
				break;
slouken@0
   681
#endif
slouken@0
   682
#ifdef MID_MUSIC
slouken@0
   683
			case MUS_MID:
slouken@0
   684
				if ( ! Timidity_Active() ) {
slouken@0
   685
					music_playing = 0;
slouken@0
   686
				}
slouken@0
   687
				break;
slouken@0
   688
#endif
slouken@0
   689
#ifdef MP3_MUSIC
slouken@0
   690
			case MUS_MP3:
slouken@0
   691
				if(SMPEG_status(music_playing->data.mp3)!=SMPEG_PLAYING)
slouken@0
   692
					music_playing = 0;
slouken@0
   693
				break;
slouken@0
   694
#endif
slouken@0
   695
		}
slouken@0
   696
	}
slouken@0
   697
	return(music_playing ? 1 : 0);
slouken@0
   698
}
slouken@0
   699
slouken@0
   700
/* Set the external music playback command */
slouken@0
   701
int Mix_SetMusicCMD(const char *command)
slouken@0
   702
{
slouken@0
   703
	Mix_HaltMusic();
slouken@0
   704
	if ( music_cmd ) {
slouken@0
   705
		free(music_cmd);
slouken@0
   706
		music_cmd = NULL;
slouken@0
   707
	}
slouken@0
   708
	if ( command ) {
slouken@0
   709
		music_cmd = (char *)malloc(strlen(command)+1);
slouken@0
   710
		if ( music_cmd == NULL ) {
slouken@0
   711
			return(-1);
slouken@0
   712
		}
slouken@0
   713
		strcpy(music_cmd, command);
slouken@0
   714
	}
slouken@0
   715
	return(0);
slouken@0
   716
}
slouken@0
   717
slouken@0
   718
/* Uninitialize the music players */
slouken@0
   719
void close_music(void)
slouken@0
   720
{
slouken@0
   721
	Mix_HaltMusic();
slouken@0
   722
#ifdef CMD_MUSIC
slouken@0
   723
	Mix_SetMusicCMD(NULL);
slouken@0
   724
#endif
slouken@0
   725
#ifdef MOD_MUSIC
slouken@0
   726
	MikMod_Exit();
slouken@0
   727
#endif
slouken@0
   728
}
slouken@0
   729