Blender Git Commits

Cleanup: Address various review comments

Add comments to C-API function declarations

Merge branch 'temp-openxr-blenderside' into soc-2019-openxr

Merge branch 'temp-openxr-ghostxr' into temp-openxr-blenderside

Remove old files/changes, git keeps bringing them back...

Minor cleanup: Avoid forward declaration

Remove obscure unique_oxr_ptr, implement alternative RAII for swapchain

Add an own class for the swapchain, through which we can ensure correct
RAII resource management.

Minor cleanup: Use r_ prefix for return arguments

Cleanup: Avoid macros, don't print source location for errors

Cleanup: Address various review comments

Add comments to C-API function declarations

Avoid queries on inaccessible session state

On the Blender side we now use a more narrow definition of when a
session is considered running than the OpenXR specification does.

Also does related cleanup.

Fix shading options missing in 3D View popover

Wasn't actually returning the poll() result during regular usage (i.e.
not re-used for scene or VR view shading options).

Fix use-after-free when closing Blender with running VR session

Somehow two wm_xr_data_destroy() calls ended up there, probably a merge
conflict.

Merge branch 'soc-2019-openxr' into vr_scene_inspection

Merge branch 'temp-openxr-blenderside' into soc-2019-openxr

Merge branch 'temp-openxr-ghostxr' into temp-openxr-blenderside

Merge branch 'master' into temp-openxr-ghostxr

Enable WITH_XR_OPENXR by default

Fix build error and warnings when WITH_XR_OPENXR is disabled