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st/oxr: Fix layer poses sent to the compositor

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This commit is contained in:
Christoph Haag 2022-03-03 17:03:36 +01:00
parent b863aa2629
commit 76c18bda47
1 changed files with 22 additions and 0 deletions
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22
src/xrt/state_trackers/oxr/oxr_session_frame_end.c
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@ -804,10 +804,32 @@ handle_space(struct oxr_logger *log,
math_quat_normalize(&pose.orientation);
}
/*
* poses in view space are already in the space the compositor expects
*/
if (spc->is_reference && spc->type == XR_REFERENCE_SPACE_TYPE_VIEW) {
struct xrt_space_relation rel;
struct xrt_relation_chain xrc = {0};
m_relation_chain_push_pose(&xrc, &pose);
m_relation_chain_push_pose_if_not_identity(&xrc, &spc->pose);
m_relation_chain_resolve(&xrc, &rel);
*out_pose = rel.pose;
return true;
}
struct xrt_space_relation rel;
if (!oxr_space_pure_pose_from_space(log, timestamp, &pose, spc, &rel)) {
return false;
}
// The compositor doesn't know about tracking origins, transform into the "raw" HMD tracking space.
struct xrt_device *head_xdev = GET_XDEV_BY_ROLE(sess->sys, head);
struct xrt_relation_chain xrc = {0};
m_relation_chain_push_relation(&xrc, &rel);
m_relation_chain_push_inverted_pose_if_not_identity(&xrc, &head_xdev->tracking_origin->offset);
m_relation_chain_resolve(&xrc, &rel);
*out_pose = rel.pose;
return true;