1 #ifndef VR_H_

2 #define VR_H_

3

4 #define VR_OPT_DISPLAY_WIDTH "display-xres"

5 #define VR_OPT_DISPLAY_HEIGHT "display-yres"

6 #define VR_OPT_LEYE_XRES "left-eye-xres"

7 #define VR_OPT_LEYE_YRES "left-eye-yres"

8 #define VR_OPT_REYE_XRES "right-eye-xres"

9 #define VR_OPT_REYE_YRES "right-eye-yres"

10 #define VR_OPT_EYE_HEIGHT "eye-height"

11 #define VR_OPT_IPD "ipd"

12

13 enum {

14 VR_EYE_LEFT,

15 VR_EYE_RIGHT

16 };

17

18 #ifdef __cplusplus

19 extern "C" {

20 #endif

21

22 int vr_init(void);

23 void vr_shutdown(void);

24

25 int vr_module_count(void);

26 const char *vr_module_name(int idx);

27

28 int vr_use_module(int idx);

29 int vr_use_module_named(const char *name);

30

31 void vr_set_opti(const char *optname, int val);

32 void vr_set_optf(const char *optname, float val);

33 int vr_get_opti(const char *optname);

34 float vr_get_optf(const char *optname);

35

36 int vr_view_translation(int eye, float *vec);

37 int vr_view_rotation(int eye, float *quat);

38

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

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

41 */

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

43 int vr_proj_matrix(int eye, float znear, float zfar, float *mat);

44

45 void vr_begin(int eye);

46 void vr_end(void);

47 int vr_swap_buffers(void);

48

49 /* set the output texture or separate textures for each eye */

50 void vr_output_texture(unsigned int tex, float umin, float vmin, float umax, float vmax);

51 void vr_output_texture_eye(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax);

52

53 void vr_recenter(void);

54

55 #ifdef __cplusplus

56 }

57 #endif

58

59 #endif /* VR_H_ */