1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/vr.h	Sun Nov 24 14:00:14 2013 +0200
     1.3 @@ -0,0 +1,63 @@
     1.4 +#ifndef GOAT3DGFX_VR_H_
     1.5 +#define GOAT3DGFX_VR_H_
     1.6 +
     1.7 +/* VR mode init options */
     1.8 +enum vr_init_mode {
     1.9 +	VR_INIT_NONE,
    1.10 +	VR_INIT_OCULUS,
    1.11 +	VR_INIT_STEREO
    1.12 +};
    1.13 +
    1.14 +/* possible eye values */
    1.15 +enum {
    1.16 +	VR_EYE_CENTER,
    1.17 +	VR_EYE_LEFT,
    1.18 +	VR_EYE_RIGHT
    1.19 +};
    1.20 +
    1.21 +#ifdef __cplusplus
    1.22 +extern "C" {
    1.23 +#endif
    1.24 +
    1.25 +int vr_init(enum vr_init_mode mode);
    1.26 +void vr_shutdown(void);
    1.27 +
    1.28 +const char *vr_get_display_name(void);
    1.29 +void vr_get_display_pos(int *xptr, int *yptr);
    1.30 +
    1.31 +int vr_get_width(void);
    1.32 +int vr_get_height(void);
    1.33 +
    1.34 +float vr_get_fov(void);
    1.35 +float vr_get_aspect(void);
    1.36 +
    1.37 +void vr_set_eyedist(float ipd);
    1.38 +float vr_get_eyedist(void);
    1.39 +
    1.40 +/* expects an array of 4 barrel distortion coefficients:
    1.41 + * polar scale: k_0 + k_1 r^2 + k_2 r^4 + k_3 r^6
    1.42 + */
    1.43 +void vr_set_distort(const float *coef);
    1.44 +void vr_get_distort(float *coef);
    1.45 +
    1.46 +void vr_set_prediction_sec(float dt);
    1.47 +float vr_get_prediction_sec(void);
    1.48 +
    1.49 +void vr_get_view_matrix(float *res, int eye);
    1.50 +void vr_get_proj_matrix(float *res, int eye);
    1.51 +
    1.52 +/* expects an array of at least 3 floats (x, y, z, offset). */
    1.53 +void vr_get_translation(float *offs);
    1.54 +/* expects an array of at least 4 floats (x, y, z, w, quaternion). */
    1.55 +void vr_get_rotation(float *quat);
    1.56 +/* expects an array of at least 3 floats (pitch, yaw, roll, angles). */
    1.57 +void vr_get_rotation_euler(float *euler);
    1.58 +
    1.59 +/* OpenGL stuff */
    1.60 +void vr_draw_eye(int eye, unsigned int tex, float tex_scale_x, float tex_scale_y);
    1.61 +
    1.62 +#ifdef __cplusplus
    1.63 +}
    1.64 +#endif
    1.65 +
    1.66 +#endif	/* GOAT3DGFX_VR_H_ */