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/**
* Powder Toy - Newtonian gravity (header)
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRAVITY_H
#define GRAVITY_H
#include "defines.h"
extern int ngrav_enable; //Newtonian gravity
extern int gravwl_timeout;
extern int gravityMode;
float *gravmap;//Maps to be used by the main thread
float *gravp;
float *gravy;
float *gravx;
unsigned *gravmask;
float *th_ogravmap;// Maps to be processed by the gravity thread
float *th_gravmap;
float *th_gravx;
float *th_gravy;
float *th_gravp;
void gravity_init();
void gravity_cleanup();
void gravity_update_async();
void start_grav_async();
void stop_grav_async();
void update_grav();
void gravity_mask();
void bilinear_interpolation(float *src, float *dst, int sw, int sh, int rw, int rh);
#ifdef GRAVFFT
void grav_fft_init();
void grav_fft_cleanup();
#endif
#endif
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