* Remove threading from the drawers
* Fix some r_scene_multithreaded related bugs
* Fix some r_scene_multithreaded crashes
* Fix fullbright shade bug
* Fix truecolor drawer crash
* Add debug code for showing the render slices
* Fix texture loading race condition and improve performance by only locking the load mutex if data hasn't already been updated for this frame
Co-authored-by: Magnus Norddahl <dpjudas@users.noreply.github.com>
This included half the game state and lots of unneeded parts of the software renderer.
The two modules that are shared between softpoly and the classic software renderer have been moved to a neutral place.
- change SpriteDrawerArgs to draw a full sprite instead of one column at a time
- add r_noaccel cvar to allow forced software rendering of the psprites (useful for debugging and also one person on the forum actually requested this feature)
- remove FWallTmapVals and calculate texture coordinates directly from FWallCoords
- move portal clipping out of the inner sprite drawing loop
These can cause highly dangerous recursions and execute play code deep inside the renderer and since the hardware renderer does not have these, there is very little point for the software renderer to retain them.
