1 #ifndef VR_H_

2 #define VR_H_

3

4 #ifdef __cplusplus

5 extern "C" {

6 #endif

7

8 int vr_init(void);

9 void vr_shutdown(void);

10

11 int vr_module_count(void);

12 const char *vr_module_name(int idx);

13

14 int vr_use_module(int idx);

15 int vr_use_module_named(const char *name);

16

17 /* returns non-zero if the active vr module provides this kind of matrix

18 * information, otherwise it returns zero, and sets mat to identity

19 */

20 int vr_view_matrix(int eye, float *mat);

21 int vr_proj_matrix(int eye, float *mat);

22

23 /* fbtex should be a texture containing both eye views side by side (LR) */

24 void vr_present(unsigned int fbtex);

25

26 /* set the area of the framebuffer texture to be used */

27 void vr_fbrect(float u, float umax, float v, float vmax);

28

29 #ifdef __cplusplus

30 }

31 #endif

32

33 #endif /* VR_H_ */