Improves the messages printed to console when bailing out of sector effect processing due to nextsectorneighborz() returning -1. This also adds such a check to ST_21_FLOOR_DOOR, which was missing it entirely. (!!)

so OSD commands can have an effect from here

(with SO interpolation turned on). It would be nicer to have something
better structured than the given hack, but this currently seems to work,
while not breaking the sprites on the boat in the beginning of level 5.

Move ratio calculation out of inner loop.

This doesn't look like it's intended to be dead code, but nothing sets Loop.Size anywhere.

This reverts commit 8914e7b6.

engine: use an additional bitmap in clipupdatesector() to mark which sectors have been checked with inside()

Not a particularly exciting set of changes.

Zeroing of fields when starting playback moved to common functions, revised allocation of memory for FLAC, Vorbis, XA, and XMP, addition of "snd_lazyalloc" cvar to control reusal of memory blocks allocated for Vorbis, XA, and XMP playback, other misc code cleanup.

This removes the +2 bytes at the end of the allocation--I checked out the valgrind_errors.log referenced by the deleted comment and it looks like the issue fixed by 2e2e0e3a.

This is the commit to revert if weird audio crashes start happening.

This adds a z position check to the collision check that controls the reversing swinging door behavior.

This only affected KMT mode, and only on certain system configurations.

Amends dc46c60e

is now required. Previously, it would be called from faketimerhandler,
which in turn is called from the engine.

if any of its sectors is impacted by CopySectorWalls. Fixes
a possible flicker with the drill at the end of level 2.

separate checks of the form sop->xmid == INT32_MAX

of change that camq16ang/camq16horiz gets. Such an update is possible
after making sure that UpdateInputs (faketimerhandler) is
never called from domovethings.

and ready2send and the call to timerUpdateClock, which are now done
before calling UpdateInputs itself from RunLevel.

faketimerhandler stub in SW. This basically deprecates
the usage of faketimerhandler in the game.

from EDuke32-OldMP. Main difference from EDuke32-OldMP is that this is
done even while staying in the menu; Behaviors will otherwise break.
We should also call timerUpdateClock() before the loop, especially
after removing the call to this function from faketimerhandler soon.

of the secret rotating pillar in level 1 with SO interpolation.
The drill in level 2 is also covered. So far, SetVatorActive seems
to be the only place where interpolation of ceiling/floorz
may be set, outside of the SO interpolation code.