nuclear@11: #ifndef GOAT3DGFX_VR_H_
nuclear@11: #define GOAT3DGFX_VR_H_
nuclear@11: 
nuclear@11: /* VR mode init options */
nuclear@11: enum vr_init_mode {
nuclear@11: 	VR_INIT_NONE,
nuclear@11: 	VR_INIT_OCULUS,
nuclear@11: 	VR_INIT_STEREO
nuclear@11: };
nuclear@11: 
nuclear@11: /* possible eye values */
nuclear@11: enum {
nuclear@11: 	VR_EYE_CENTER,
nuclear@11: 	VR_EYE_LEFT,
nuclear@11: 	VR_EYE_RIGHT
nuclear@11: };
nuclear@11: 
nuclear@11: #ifdef __cplusplus
nuclear@11: extern "C" {
nuclear@11: #endif
nuclear@11: 
nuclear@11: int vr_init(enum vr_init_mode mode);
nuclear@11: void vr_shutdown(void);
nuclear@11: 
nuclear@11: const char *vr_get_display_name(void);
nuclear@11: void vr_get_display_pos(int *xptr, int *yptr);
nuclear@11: 
nuclear@11: int vr_get_width(void);
nuclear@11: int vr_get_height(void);
nuclear@11: 
nuclear@11: float vr_get_fov(void);
nuclear@11: float vr_get_aspect(void);
nuclear@11: 
nuclear@11: void vr_set_eyedist(float ipd);
nuclear@11: float vr_get_eyedist(void);
nuclear@11: 
nuclear@11: /* expects an array of 4 barrel distortion coefficients:
nuclear@11:  * polar scale: k_0 + k_1 r^2 + k_2 r^4 + k_3 r^6
nuclear@11:  */
nuclear@11: void vr_set_distort(const float *coef);
nuclear@11: void vr_get_distort(float *coef);
nuclear@11: 
nuclear@11: void vr_set_prediction_sec(float dt);
nuclear@11: float vr_get_prediction_sec(void);
nuclear@11: 
nuclear@11: void vr_get_view_matrix(float *res, int eye);
nuclear@11: void vr_get_proj_matrix(float *res, int eye);
nuclear@11: 
nuclear@11: /* expects an array of at least 3 floats (x, y, z, offset). */
nuclear@11: void vr_get_translation(float *offs);
nuclear@11: /* expects an array of at least 4 floats (x, y, z, w, quaternion). */
nuclear@11: void vr_get_rotation(float *quat);
nuclear@11: /* expects an array of at least 3 floats (pitch, yaw, roll, angles). */
nuclear@11: void vr_get_rotation_euler(float *euler);
nuclear@11: 
nuclear@11: /* OpenGL stuff */
nuclear@11: void vr_draw_eye(int eye, unsigned int tex, float tex_scale_x, float tex_scale_y);
nuclear@11: 
nuclear@11: #ifdef __cplusplus
nuclear@11: }
nuclear@11: #endif
nuclear@11: 
nuclear@11: #endif	/* GOAT3DGFX_VR_H_ */