Instead of explicit work queue stop before any possibly used engine manager
is destructed. Based on an assumption that any engine manager can be destructed
independently from the work queue destruction. This model is already used in
CellPreloader that conflicts with explicit work queue stop.
After the work queue is requested to be stopped, any client waiting for a not
started work item to be done will wait forever because the work item is dropped
from the queue. Therefore either clients should not wait for own work items to
be completed in destructor or the work queue should not drop items before
clients are destructed. Other approaches are possible but are not considered
due to increasing complexity.
CellPreloader already tries to wait for all created work items to be done so
keep it that way and extend the model to AsyncScreenCaptureOperation and Scene.
Additionally abort all scheduled work items when owner is destructed. This
prevents a long exit when multiple screenshots are scheduled right before
exiting the game.
Show message about saved screenshot via schedule message box. Since screenshot
saving happens not in the main thread calling messageBox directly is unsafe.
WindowManager::scheduleMessageBox delays message box showing until next update
in the main thread.
Before this change LightBuffer copy constructor copied only mData pointer into
a new object. Then memcpy was applied to an overlapping source and destination
that is UB.
Replace configureLayout function by a special constructor. That copies all
mData values and a pointer to a buffer object into a newly allocated object.
When game exit is requests when initial loading screen is active LightManager
can be destructed in the main thread before LightManagerStateAttribute::apply
is completed by different thread. Given that it uses raw pointer at some point
it becomes dangling because object is destructed this leads to UB and eventual
SIGSEGV.
Fixes build errors with older OSG builds and some issues with 'shared' layout.
Bring back ambient in inventory through lightmodel instead of sun ambient, mirrors scene ambient/sunlight relationship.
Forces shaders when certain lighting methods are enabled and finalize settings.
Correctly override sun for localmap.
