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diff --git a/src/i_sound.h b/src/i_sound.h
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+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// $Id: i_sound.h 4 2005-07-23 16:19:41Z fraggle $
+//
+// Copyright (C) 1993-1996 by id Software, Inc.
+//
+// This source is available for distribution and/or modification
+// only under the terms of the DOOM Source Code License as
+// published by id Software. All rights reserved.
+//
+// The source is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
+// for more details.
+//
+//
+// DESCRIPTION:
+//	System interface, sound.
+//
+//-----------------------------------------------------------------------------
+
+#ifndef __I_SOUND__
+#define __I_SOUND__
+
+#include "doomdef.h"
+
+// UNIX hack, to be removed.
+#ifdef SNDSERV
+#include <stdio.h>
+extern FILE* sndserver;
+extern char* sndserver_filename;
+#endif
+
+#include "doomstat.h"
+#include "sounds.h"
+
+
+
+// Init at program start...
+void I_InitSound();
+
+// ... update sound buffer and audio device at runtime...
+void I_UpdateSound(void);
+void I_SubmitSound(void);
+
+// ... shut down and relase at program termination.
+void I_ShutdownSound(void);
+
+
+//
+//  SFX I/O
+//
+
+// Initialize channels?
+void I_SetChannels();
+
+// Get raw data lump index for sound descriptor.
+int I_GetSfxLumpNum (sfxinfo_t* sfxinfo );
+
+
+// Starts a sound in a particular sound channel.
+int
+I_StartSound
+( int		id,
+  int		vol,
+  int		sep,
+  int		pitch,
+  int		priority );
+
+
+// Stops a sound channel.
+void I_StopSound(int handle);
+
+// Called by S_*() functions
+//  to see if a channel is still playing.
+// Returns 0 if no longer playing, 1 if playing.
+int I_SoundIsPlaying(int handle);
+
+// Updates the volume, separation,
+//  and pitch of a sound channel.
+void
+I_UpdateSoundParams
+( int		handle,
+  int		vol,
+  int		sep,
+  int		pitch );
+
+
+//
+//  MUSIC I/O
+//
+void I_InitMusic(void);
+void I_ShutdownMusic(void);
+// Volume.
+void I_SetMusicVolume(int volume);
+// PAUSE game handling.
+void I_PauseSong(int handle);
+void I_ResumeSong(int handle);
+// Registers a song handle to song data.
+int I_RegisterSong(void *data);
+// Called by anything that wishes to start music.
+//  plays a song, and when the song is done,
+//  starts playing it again in an endless loop.
+// Horrible thing to do, considering.
+void
+I_PlaySong
+( int		handle,
+  int		looping );
+// Stops a song over 3 seconds.
+void I_StopSong(int handle);
+// See above (register), then think backwards
+void I_UnRegisterSong(int handle);
+
+
+
+#endif
+//-----------------------------------------------------------------------------
+//
+// $Log$
+// Revision 1.1  2005/07/23 16:20:46  fraggle
+// Initial revision
+//
+//
+//-----------------------------------------------------------------------------