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 #define VR_OPT_WIN_XOFFS "win-xoffset"

13 #define VR_OPT_WIN_YOFFS "win-yoffset"

14

15 enum {

16 VR_EYE_LEFT,

17 VR_EYE_RIGHT

18 };

19

20 #ifdef __cplusplus

21 extern "C" {

22 #endif

23

24 int vr_init(void);

25 void vr_shutdown(void);

26

27 int vr_module_count(void);

28 const char *vr_module_name(int idx);

29

30 int vr_use_module(int idx);

31 int vr_use_module_named(const char *name);

32

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

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

35 int vr_get_opti(const char *optname);

36 float vr_get_optf(const char *optname);

37

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

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

40

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

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

43 */

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

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

46

47 void vr_begin(int eye);

48 void vr_end(void);

49 int vr_swap_buffers(void);

50

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

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

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

54

55 void vr_recenter(void);

56

57 #ifdef __cplusplus

58 }

59 #endif

60

61 #endif /* VR_H_ */