raze/source/sw/src/interp.h

//-------------------------------------------------------------------------
/*
Copyright (C) 1997, 2005 - 3D Realms Entertainment

This file is part of Shadow Warrior version 1.2

Shadow Warrior 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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

Original Source: 1997 - Frank Maddin and Jim Norwood
Prepared for public release: 03/28/2005 - Charlie Wiederhold, 3D Realms
*/
//-------------------------------------------------------------------------
BEGIN_SW_NS

#ifndef INTERP_H

#define INTERP_H

#include "build.h"

#define SHORT_MAXINTERPOLATIONS 256
extern short short_numinterpolations;
extern short short_oldipos[SHORT_MAXINTERPOLATIONS];
extern short short_bakipos[SHORT_MAXINTERPOLATIONS];
extern short *short_curipos[SHORT_MAXINTERPOLATIONS];

#define MAXINTERPOLATIONS MAXSPRITES
extern int numinterpolations;
extern int oldipos[MAXINTERPOLATIONS];
extern int bakipos[MAXINTERPOLATIONS];
extern int *curipos[MAXINTERPOLATIONS];

void setinterpolation(int *posptr);
void stopinterpolation(int *posptr);
void updateinterpolations(void);
void dointerpolations(int smoothratio);
void restoreinterpolations(void);

void togglespriteinterpolation(spritetype *sp, int set);

static void FORCE_INLINE setspriteinterpolation(spritetype *sp) { togglespriteinterpolation(sp, 1); }
static void FORCE_INLINE stopspriteinterpolation(spritetype *sp) { togglespriteinterpolation(sp, 0); }

#endif

END_SW_NS