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Build engine port backed by GZDoom tech. Currently supports Duke Nukem 3D, Blood, Shadow Warrior, Redneck Rampage and Powerslave/Exhumed.
dca9d1357c
Hlines for masked and translucent masked ceiling/floor (sprites).
- apply the --> 'do { ... } while (--cnt)' transformation, making these
functions iterate cnt+1 times like the asm version. This also fixes an
off-by-one issue where sprites or masked ceilings/floors had a one-pixel
non-drawn line to the right.
- This time, only declare-as-local two 'extern' globals (asm1 and asm2).
It seems that I was too eager with "localing" all file-scoped vars earlier.
GCC is able to remove the loads from memory inside the loop by itself, whereas
clang is not. This is not trivial, since it has to prove that the 'screen'
pointer passed to the functions will never alias these globals.
git-svn-id: https://svn.eduke32.com/eduke32@2424 1a8010ca-5511-0410-912e-c29ae57300e0
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