nuclear@4: #ifndef VR_H_
nuclear@4: #define VR_H_
nuclear@4: 
nuclear@5: enum {
nuclear@5: 	VR_EYE_LEFT,
nuclear@5: 	VR_EYE_RIGHT
nuclear@5: };
nuclear@5: 
nuclear@4: #ifdef __cplusplus
nuclear@4: extern "C" {
nuclear@4: #endif
nuclear@4: 
nuclear@4: int vr_init(void);
nuclear@4: void vr_shutdown(void);
nuclear@4: 
nuclear@4: int vr_module_count(void);
nuclear@4: const char *vr_module_name(int idx);
nuclear@4: 
nuclear@4: int vr_use_module(int idx);
nuclear@4: int vr_use_module_named(const char *name);
nuclear@4: 
nuclear@5: /* if we're using a vr module which requires a specific output resolution, vr_display_size
nuclear@5:  * returns non-zero, and writes the size through the xsz/ysz pointers. Otherwise returns 0
nuclear@5:  */
nuclear@5: int vr_display_size(int *xsz, int *ysz);
nuclear@5: int vr_eye_texture_size(int eye, int *xsz, int *ysz);
nuclear@5: 
nuclear@4: /* returns non-zero if the active vr module provides this kind of matrix
nuclear@4:  * information, otherwise it returns zero, and sets mat to identity
nuclear@4:  */
nuclear@4: int vr_view_matrix(int eye, float *mat);
nuclear@4: int vr_proj_matrix(int eye, float *mat);
nuclear@4: 
nuclear@5: void vr_begin(int eye);
nuclear@5: void vr_end(void);
nuclear@5: void vr_present(void);
nuclear@4: 
nuclear@4: #ifdef __cplusplus
nuclear@4: }
nuclear@4: #endif
nuclear@4: 
nuclear@4: #endif	/* VR_H_ */