Build 2416

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r2416 | helixhorned | 2012-03-04 12:15:22 -0800 (Sun, 04 Mar 2012) | 3 lines

Formatting; remove 'loop has empty body' warnings with clang.

I have to admit, I like its grumbling.
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r2415 | helixhorned | 2012-03-04 12:15:04 -0800 (Sun, 04 Mar 2012) | 3 lines

Polymost: with r_parallaxskypanning=1, clamp the sky at a constant horizon.

See E4L1 for what this means.
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r2414 | helixhorned | 2012-03-04 12:14:48 -0800 (Sun, 04 Mar 2012) | 15 lines

Fix apparent horizon not being independent of viewingrange (classic/Polymost).

The apparent horizon (in units proportional to pixels by a constant factor)
was being calculated without normalizing to viewingrange, resulting a
discrepancy between the drawn and actual up/down angle with non-default
viewingranges (e.g. with r_usenewaspect=1, or when setting it from setaspect).
This also means that the center-of-aim will now be the same regardless of
the aspect.

This fixes many derived bugs:
 * inconsistency w/ crosshair when shooting a gun and aiming up/down (obviously)
 * bugs resulting from being able to look up/down too far (garbage non-slope
   texture-mapping and viewing BIGORBIT skies above the borders in classic).

Note: mods that had workaround logic for this bug will have to remove it...
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r2413 | helixhorned | 2012-03-04 12:14:32 -0800 (Sun, 04 Mar 2012) | 4 lines

Tweak 'dncoords' display.

added: sector extra; viewingrange and yxaspect before the main drawrooms call
removed: randomseed
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r2412 | helixhorned | 2012-03-04 12:14:18 -0800 (Sun, 04 Mar 2012) | 1 line

ATTRIBUTE((pure)) for Ptile2tile(), add a forgotten comment.
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r2411 | helixhorned | 2012-03-04 12:14:01 -0800 (Sun, 04 Mar 2012) | 1 line

sector.c: fix a possible oob access of a local array.
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r2410 | helixhorned | 2012-03-04 12:13:47 -0800 (Sun, 04 Mar 2012) | 1 line

Clamp ud.camerahoriz after EVENT_DISPLAYROOMS (instead of before).
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r2409 | helixhorned | 2012-03-04 12:13:34 -0800 (Sun, 04 Mar 2012) | 1 line

Make 'double ghoriz' static in polymost.c.
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r2408 | helixhorned | 2012-03-04 12:13:16 -0800 (Sun, 04 Mar 2012) | 4 lines

Apply transformations to nonpow2_mhline and nonpow2_thline.

This has no measureable difference. Oh well, maybe it benefits weaker
machines, since the generated loop code should definitely be prettier.
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r2407 | helixhorned | 2012-03-04 12:13:01 -0800 (Sun, 04 Mar 2012) | 1 line

Optimize fade_screen_black(). 49 --> 54 fps for test scene.
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r2406 | helixhorned | 2012-03-04 12:12:46 -0800 (Sun, 04 Mar 2012) | 4 lines

Apply the transformations of the previous commit to tslopevlin().

This doesn't give much, maybe 0.5 fps more, probably because the
loop body is pretty long.
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r2405 | helixhorned | 2012-03-04 12:12:30 -0800 (Sun, 04 Mar 2012) | 17 lines

Optimization of C replacements of basic texture mapping functions, part 1

Affected functions: hlineasm4, vlineasm1, mvlineasm1, tvlineasm1.

Optimizations:
 - declare all used variables as possibly const-qualified locals in each
   function. This removes unnecessary loads from memory in the loops.
 - rewrite "for (; cnt>=0; cnt--) {...}" to "cnt++; do {...} while (--cnt);"
   in the three last ones (yes, these function iterate cnt+1 times). This
   makes them functionally equivalent to the asm versions (madness ensues for
   cnt < 0) and allows the compiler to remove one 'test' instruction at the
   end of each loop.
 - in the translucence function, replace addition by ORing

Observations (system: Core2 Duo Linux x86_64):
 With a 1680x1050 window fully covered by the respective type of wall (simple,
 masked, trans. masked), fps increases by 3-4 from the baseline of approx. 60.
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r2404 | helixhorned | 2012-03-04 12:12:15 -0800 (Sun, 04 Mar 2012) | 5 lines

More utils tweaks.

- remove the objects too on 'clean'
- fix warning with 'transpal' on x64
  (generates translucency and shade tables)
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r2403 | helixhorned | 2012-03-04 12:11:49 -0800 (Sun, 04 Mar 2012) | 6 lines

Makefile tweaks for the utilities.

- print compilation status for building the final executable
- add 'cleanutils' target in build/Makefile
- don't link against pthread, seems unnecessary
- don't build nedmalloc.o when not requested in Makefile.common
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