properly in letterboxed modes.
- Added another surface to receive a copy of the top back buffer immediately
before it is presented. This effectively produces a copy of the front
buffer without the performance penalty of GetFrontBufferData, so fullscreen
wipe preparation and screenshots are faster now. At lower resolutions,
always copying the backbuffer does incur a slight FPS hit, but it's
practically free at higher resolutions.
SVN r2013 (trunk)
assumed that since the wipes only run at 35 FPS, the time spent DMA'ing
it from system to video memory would be acceptable. Apparently I was wrong.
In particular, updating the same surface several times probably has to
synchronize between each one, making melt particularly slower than it
needs to be.
SVN r2012 (trunk)
The editor number for player start spot 5 is now stored in the game info
so that there's only one place where this check needs to be done.
- Fixed: WIF_NOAUTOAIM only worked for projectiles unlike Skulltag's original
implementation.
SVN r1997 (trunk)
savegames would hold the full file path for wads that had been specified
with backslash characters, because GetWadName() would not trim off the
path.
SVN r1994 (trunk)
former used fistp, which is not portable across platforms, so cannot be
used in the play simulation. They were only suitable for the renderer.
xs_Float.h also has a very fast float->fixed conversion, so FLOAT2FIXED
uses that now.
(And I also learned that the FPU's round to nearest is not the rounding I
learned in grade school but actually Banker's Rounding. I had no idea.)
(Also, also, the only thing that could have made quickertoint faster than
toint was that it stored a 32-bit int. I never timed them, and I doubt in
practice there was any real difference between the two.)
- Changed atan2f to atan2. Using floats is not a win, because the result is
returned as a double on the x87 stack, which the caller then needs to cast
down to a float using fst/fld.
SVN r1990 (trunk)
* Looping sounds that have been playing for a very long time, were evicted,
and then were restarted need to have their positions clamped to lie
within the bounds of the sounds. If we try to set a start position very
far beyond the end, it will overflow inside FMOD and not work.
* A start time of 0 is not actually valid and means the sound was never
assigned a start time.
- The latter bug also reveals a problem with starting looped sounds evicted:
They need to be assigned a start time so if they should have the opportunity
to start later, they will be properly synchronized.
SVN r1987 (trunk)
Both Hexen and Heretic depend on such projectiles not doing it as do many
mods that create snow/rain effects plus any terrain splash mod.
SVN r1984 (trunk)
are scaled to the height of a 200 pixel tall sky. Skies taller than 240
use the same scale as a 240 tall sky but are shifted down to make the
top of the texture align with the top of the screen when looking fully up.
Thus, by using a sky texture with a height of 240 or more pixels, the sky
will be drawn with square pixels instead of the vertically elongated ones
imposed by Doom's native 320x200 resolution.
SVN r1978 (trunk)
- Improved sky stretching a bit: It now only stretches the sky as tall as it
needs to be: 228 pixels, not 256. It no longer stretches horizontally,
either.
The reason it stretches to 228 and not 200 pixels is because Doom shifted
its sky texture down 28 pixels. By stretching to 228 pixels, we can keep
the sky tiled at the same height on the horizon. Skies 200 pixels tall
(or more) will continue to tile at the center of the screen when looking
directly ahead.
SVN r1976 (trunk)
time as the polled timer so that the timer does not start running until the
first time it is used.
- Removed the srand() call from D_DoomMain(), because it started the game
timer running prematurely, and we never call rand() anywhere. (Not to
mention, even if we did use rand(), always seeding it with 0 is rather
pointless.)
SVN r1974 (trunk)
unsigned integer that can use all 32 bits. They must therefore use
the unsigned mul instruction rather than the signed imul instruction.
- Fixed several signed/unsigned comparison and possibly uninitialized
variable warnings flagged by GCC.
SVN r1965 (trunk)
