nuclear@0: #ifndef VR_H_
nuclear@0: #define VR_H_
nuclear@0: 
nuclear@8: /* unit: pixels */
nuclear@11: #define VR_DISPLAY_WIDTH	"display-xres"
nuclear@11: #define VR_DISPLAY_HEIGHT	"display-yres"
nuclear@11: #define VR_LEYE_XRES		"left-eye-xres"
nuclear@11: #define VR_LEYE_YRES		"left-eye-yres"
nuclear@11: #define VR_REYE_XRES		"right-eye-xres"
nuclear@11: #define VR_REYE_YRES		"right-eye-yres"
nuclear@11: #define VR_WIN_XOFFS		"win-xoffset"
nuclear@11: #define VR_WIN_YOFFS		"win-yoffset"
nuclear@8: /* unit: meters */
nuclear@11: #define VR_EYE_HEIGHT		"eye-height"
nuclear@11: #define VR_IPD				"ipd"
nuclear@0: 
nuclear@0: enum {
nuclear@0: 	VR_EYE_LEFT,
nuclear@0: 	VR_EYE_RIGHT
nuclear@0: };
nuclear@0: 
nuclear@0: #ifdef __cplusplus
nuclear@0: extern "C" {
nuclear@0: #endif
nuclear@0: 
nuclear@0: int vr_init(void);
nuclear@0: void vr_shutdown(void);
nuclear@0: 
nuclear@0: int vr_module_count(void);
nuclear@0: const char *vr_module_name(int idx);
nuclear@0: 
nuclear@0: int vr_use_module(int idx);
nuclear@0: int vr_use_module_named(const char *name);
nuclear@0: 
nuclear@11: void vr_seti(const char *optname, int val);
nuclear@11: void vr_setf(const char *optname, float val);
nuclear@11: int vr_geti(const char *optname);
nuclear@11: float vr_getf(const char *optname);
nuclear@0: 
nuclear@0: int vr_view_translation(int eye, float *vec);
nuclear@0: int vr_view_rotation(int eye, float *quat);
nuclear@0: 
nuclear@0: /* returns non-zero if the active vr module provides this kind of matrix
nuclear@0:  * information, otherwise it returns zero, and sets mat to identity
nuclear@0:  */
nuclear@0: int vr_view_matrix(int eye, float *mat);
nuclear@0: int vr_proj_matrix(int eye, float znear, float zfar, float *mat);
nuclear@0: 
nuclear@0: void vr_begin(int eye);
nuclear@0: void vr_end(void);
nuclear@0: int vr_swap_buffers(void);
nuclear@0: 
nuclear@0: /* set the output texture or separate textures for each eye */
nuclear@0: void vr_output_texture(unsigned int tex, float umin, float vmin, float umax, float vmax);
nuclear@0: void vr_output_texture_eye(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax);
nuclear@0: 
nuclear@0: void vr_recenter(void);
nuclear@0: 
nuclear@0: #ifdef __cplusplus
nuclear@0: }
nuclear@0: #endif
nuclear@0: 
nuclear@0: #endif	/* VR_H_ */