nuclear@0: #ifndef DSYS2_H_
nuclear@0: #define DSYS2_H_
nuclear@0: 
nuclear@0: #include <stdio.h>
nuclear@0: 
nuclear@0: struct dsys_demo;
nuclear@0: struct dsys_event;
nuclear@0: 
nuclear@0: typedef float demotime_t;
nuclear@0: 
nuclear@0: enum dsys_evtype {
nuclear@0: 	DSYS_SINGLE,
nuclear@0: 	DSYS_PERIODIC
nuclear@0: };
nuclear@0: 
nuclear@0: 
nuclear@0: struct dsys_demo *dsys_open(const char *fname);
nuclear@0: struct dsys_demo *dsys_open_stream(FILE *fp);
nuclear@0: void dsys_close(struct dsys_demo *demo);
nuclear@0: 
nuclear@0: void dsys_update(struct dsys_demo *demo, demotime_t tm);
nuclear@0: 
nuclear@0: 
nuclear@0: void dsys_start(struct dsys_demo *demo);
nuclear@0: void dsys_stop(struct dsys_demo *demo);
nuclear@0: int dsys_is_running(struct dsys_demo *demo);
nuclear@0: 
nuclear@0: 
nuclear@0: demotime_t dsys_duration(struct dsys_demo *demo);
nuclear@0: demotime_t dsys_time(struct dsys_demo *demo);
nuclear@0: float dsys_progress(struct dsys_demo *demo);
nuclear@0: 
nuclear@0: /* seek without continuity */
nuclear@0: void dsys_seek(struct dsys_demo *demo, demotime_t tm);
nuclear@0: void dsys_seek_norm(struct dsys_demo *demo, float t);
nuclear@0: 
nuclear@0: /* seek by accelerating time */
nuclear@0: void dsys_warp(struct dsys_demo *demo, demotime_t tm);
nuclear@0: void dsys_warp_norm(struct dsys_demo *demo, float t);
nuclear@0: 
nuclear@0: 
nuclear@0: /* events */
nuclear@0: struct dsys_event *dsys_event(struct dsys_demo *demo, const char *name);
nuclear@0: 
nuclear@0: enum dsys_evtype dsys_event_type(struct dsys_event *ev);
nuclear@0: float dsys_event_value(struct dsys_event *ev);
nuclear@0: 
nuclear@6: int dsys_event_callback(struct dsys_event *ev, void (*func)(struct dsys_event*, void*), void *cls);
nuclear@6: int dsys_event_link(struct dsys_event *ev, float *link);
nuclear@0: 
nuclear@5: /* event evaluators */
nuclear@5: float dsys_eval_step(struct dsys_event *ev, demotime_t t);
nuclear@5: float dsys_eval_lerp(struct dsys_event *ev, demotime_t t);
nuclear@5: float dsys_eval_sigmoid(struct dsys_event *ev, demotime_t t);
nuclear@0: 
nuclear@0: /* time conversion */
nuclear@0: demotime_t dsys_sec_to_dtime(float sec);
nuclear@0: demotime_t dsys_msec_to_dtime(unsigned long msec);
nuclear@0: 
nuclear@0: float dsys_dtime_to_sec(demotime_t tm);
nuclear@0: unsigned long dsys_dtime_to_msec(demotime_t tm);
nuclear@0: 
nuclear@0: 
nuclear@0: #endif	/* DSYS2_H_ */