// Emacs style mode select   -*- C++ -*-
//-----------------------------------------------------------------------------
//
//
// 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_VIDEO__
#define __I_VIDEO__


#include "doomtype.h"
#include "rockmacros.h"

#ifdef __GNUG__
#pragma interface
#endif


// Called by D_DoomMain,
// determines the hardware configuration
// and sets up the video mode
void I_InitGraphics (void);

void I_ShutdownGraphics(void);

// Takes full 8 bit values.
void I_SetPalette (int pal);

void I_UpdateNoBlit (void);
void I_FinishUpdate (void) ICODE_ATTR;

// Wait for vertical retrace or pause a bit.
void I_WaitVBL(int count);

void I_ReadScreen (byte* scr);



#endif
