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- Added an assembly version of rt_shaded4cols, since that's the main decal

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drawing function. The most improvement came from being able to turn some
  constant variables into immediate values with self-modifying code, but I
  also managed to reorder it to make it a little faster. It's about 9% faster
  than VC++'s code and 19% faster than GCC's code. That's not a huge
  improvement (for VC++), but at least it's measurable.
- Removed the solid fill "optimization" from rt_shaded4cols(), because in my
  testing, it didn't help any and in fact, hurt just a little bit.
- In the name of simplification, all the rt_tlate* drawers were changed to do
  the translation in one step and the drawing in another. This lets me call
  the untranslated drawer to do the real drawing instead of mostly duplicating
  them. Performance wise, there is practically no difference from before.


SVN r771 (trunk)
This commit is contained in:
Randy Heit 2008-02-27 03:11:35 +00:00
commit 9cb674c60c
8 changed files with 361 additions and 493 deletions
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src/r_main.cpp
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@ -205,7 +205,7 @@ void (*spanfunc) (void);
void (*hcolfunc_pre) (void);
void (*hcolfunc_post1) (int hx, int sx, int yl, int yh);
void (*hcolfunc_post2) (int hx, int sx, int yl, int yh);
void (*hcolfunc_post4) (int sx, int yl, int yh);
void (STACK_ARGS *hcolfunc_post4) (int sx, int yl, int yh);
cycle_t WallCycles, PlaneCycles, MaskedCycles, WallScanCycles;