warzone2100/lib/framework/SDL_framerate.h

54 lines
927 B
C

/*
SDL_framerate: framerate manager
LGPL (c) A. Schiffler
*/
#ifndef _SDL_framerate_h
#define _SDL_framerate_h
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/* --- */
#include <SDL.h>
/* --------- Definitions */
/* Some rates in Hz */
#define FPS_UPPER_LIMIT 200
#define FPS_LOWER_LIMIT 1
#define FPS_DEFAULT 30
/* --------- Structure variables */
typedef struct {
Uint32 framecount;
float rateticks;
Uint32 lastticks;
Uint32 rate;
} FPSmanager;
/* Functions return 0 or value for sucess and -1 for error */
void SDL_initFramerate(FPSmanager * manager);
int SDL_setFramerate(FPSmanager * manager, int rate);
int SDL_getFramerate(FPSmanager * manager);
void SDL_framerateDelay(FPSmanager * manager);
/* --- */
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#endif /* _SDL_framerate_h */