// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// 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 2
// 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.
//
// DESCRIPTION:
//	System specific interface stuff.
//
//-----------------------------------------------------------------------------


#ifndef __I_SYSTEM__
#define __I_SYSTEM__

#include <stddef.h>

#include "d_ticcmd.h"
#include "d_event.h"


// Called by DoomMain.
void I_Init (void);

// Called by startup code
// to get the ammount of memory to malloc
// for the zone management.
byte*	I_ZoneBase (size_t *size);


// Called by D_DoomLoop,
// returns current time in tics.
int I_GetTime (void);


// Asynchronous interrupt functions should maintain private queues
// that are read by the synchronous functions
// to be converted into events.

// Either returns a null ticcmd,
// or calls a loadable driver to build it.
// This ticcmd will then be modified by the gameloop
// for normal input.
ticcmd_t* I_BaseTiccmd (void);


// Called by M_Responder when quit is selected.
// Clean exit, displays sell blurb.
void I_Quit (void);


// Allocates from low memory under dos,
// just mallocs under unix
byte* I_AllocLow (size_t length);

void I_Tactile (int on, int off, int total);


void I_Error (const char *error, ...);


void I_Sleep(void);

void I_BeginRead (void);
void I_EndRead (void);


#endif
//-----------------------------------------------------------------------------
//
// $Log:$
//
//-----------------------------------------------------------------------------