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st/oxr: Add view rotation difference to fov angles with parallel views

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Part-of: <https://gitlab.freedesktop.org/monado/monado/-/merge_requests/2312>
This commit is contained in:
Christoph Haag 2024-08-26 00:13:33 +02:00 committed by Marge Bot
parent 71b5d37e7e
commit d1f4099a3f
1 changed files with 28 additions and 1 deletions
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29
src/xrt/state_trackers/oxr/oxr_session.c
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@ -513,6 +513,28 @@ xrt_to_view_state_flags(enum xrt_space_relation_flags flags)
return res;
}
static void
adjust_fov(const struct xrt_fov *original_fov, const struct xrt_quat *original_rotation, struct xrt_fov *adjusted_fov)
{
struct xrt_quat identity = XRT_QUAT_IDENTITY;
struct xrt_quat original_rotation_inv;
math_quat_invert(original_rotation, &original_rotation_inv);
struct xrt_quat rotation_diff;
math_quat_rotate(&original_rotation_inv, &identity, &rotation_diff);
struct xrt_vec3 euler_angles;
math_quat_to_euler_angles(&rotation_diff, &euler_angles);
*adjusted_fov = (struct xrt_fov){
.angle_left = original_fov->angle_left + euler_angles.y,
.angle_right = original_fov->angle_right + euler_angles.y,
.angle_up = original_fov->angle_up + euler_angles.x,
.angle_down = original_fov->angle_down + euler_angles.x,
};
}
XrResult
oxr_session_locate_views(struct oxr_logger *log,
struct oxr_session *sess,
@ -633,7 +655,12 @@ oxr_session_locate_views(struct oxr_logger *log,
* Fov
*/
const struct xrt_fov fov = fovs[i];
struct xrt_fov fov = fovs[i];
if (sess->sys->inst->quirks.parallel_views) {
adjust_fov(&fovs[i], &poses[i].orientation, &fov);
}
OXR_XRT_FOV_TO_XRFOVF(fov, views[i].fov);