Glenn Maynard
3d3cbc73e5
SM_SDL_OrderedDither -> RageSurfaceUtils::OrderedDither
...
SM_SDL_ErrorDiffusionDither -> RageSurfaceUtils::ErrorDiffusionDither
(these have nothing to do with SDL; I'd rename the files but I hate
losing CVS history)
2004-08-28 09:09:34 +00:00
Glenn Maynard
b481fc465b
excessively large commit: use RageSurface
2004-06-14 00:51:00 +00:00
Glenn Maynard
ae4cb0197c
license update
2004-05-18 07:11:11 +00:00
Glenn Maynard
7c56df3fd7
types
2004-05-11 20:50:08 +00:00
Glenn Maynard
ac81016af4
when dithering, round the alpha channel instead of truncating
2004-05-02 03:41:33 +00:00
Glenn Maynard
5e4eb9e001
optimize SM_SDL_ErrorDiffusionDither like SM_SDL_OrderedDither; now
...
it's only about 50% slower
this also fixes banding after dithering gradients
2004-04-11 01:41:35 +00:00
Glenn Maynard
fd839eb946
optimize SM_SDL_ErrorDiffusionDither: takes about half as long now
...
(but it still takes 3x as long as SM_SDL_OrderedDither, and I still
see banding in both vertical and horizontal gradients ...)
2004-04-10 23:09:41 +00:00
Glenn Maynard
3e8664fd61
whitespace cleanup only
2004-03-19 21:56:45 +00:00
Chris Danford
c8b325d17f
messing with dithering again. I won't waste any more time on it!
2003-04-26 10:57:40 +00:00
Chris Danford
0bb7164b91
worked on Error diffusion dithering algorithm, but it doesn't end up looking much better than OrderedDither
2003-04-05 21:17:51 +00:00
Glenn Maynard
42cfd6f98c
stdafx -> global
2003-02-16 04:01:45 +00:00
Glenn Maynard
ed9a07df76
fix dithering when dest has alpha and source does not; also fix it
...
when dest has more alpha bits than the source (rare)
2002-11-25 09:37:45 +00:00
Chris Danford
285a9099e1
Fixed bug in SDL_OrderedDither that causes incorrect alpha values if src has 0 alpha bits
2002-11-25 04:23:33 +00:00
Glenn Maynard
984b433858
signs, headers, for scoping
2002-11-16 20:21:00 +00:00
Glenn Maynard
afcd1ff1c6
fix div/0
2002-11-02 21:20:18 +00:00
Glenn Maynard
f49876b23e
dither in integer space (faster)
...
(started to write another resize filter and ended up doing this instead)
2002-10-30 06:03:38 +00:00
Glenn Maynard
3f2648011f
Some SDL source files: dithering routine, zoom routine and
...
misc. tools.
2002-10-24 03:38:23 +00:00
Glenn Maynard