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#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#ifndef IN_OPENTRACK
/* opaque pointers, forward definitions */
struct opentrack_opaque_ctx;
typedef opentrack_opaque_ctx* opentrack;
struct opentrack_opaque_tracker;
typedef opentrack_opaque_tracker* opentrack_tracker;
#endif
#ifdef IN_OPENTRACK
# ifdef _WIN32
# define OPENTRACK_EXPORT __declspec(dllexport)
# else
# define OPENTRACK_EXPORT
# endif
#else
# ifdef _WIN32
# define OPENTRACK_EXPORT __declspec(dllimport)
# else
# define OPENTRACK_EXPORT
# endif
#endif
/* for `opentrack_tracker_tick', individual headpose elts */
#ifndef IN_OPENTRACK
enum opentrack_dof {
TX = 0,
TY,
TZ,
Yaw,
Pitch,
Roll,
DOF_count
};
#endif
opentrack opentrack_make_ctx(const char* dir);
void opentrack_finalize_ctx(opentrack self);
/* no need to free the return value; invalid to modify it */
const char** opentrack_enum_trackers(opentrack self);
/*
* don't `opentrack_tracker_tick an unstarted tracker, it's invalid to do so
* it's also invalid to start a finalized tracker
*/
opentrack_tracker opentrack_make_tracker(opentrack ctx, const char* name);
void opentrack_tracker_start(opentrack self, opentrack_tracker tracker);
int opentrack_tracker_tick(opentrack_tracker tracker, double* headpose);
void opentrack_finalize_tracker(opentrack_tracker tracker);
#ifdef __cplusplus
}
#endif
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