[Bug 10797] Aliens versus Predator text rendering faulty

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=10797





--- Comment #3 from Alexander Dorofeyev <alexd4 at inbox.lv>  2007-12-19 16:36:30 ---
Created an attachment (id=9702)
 --> (http://bugs.winehq.org/attachment.cgi?id=9702)
demo screenshot

Yes, there's some problem. There are also hud/menu text issues in AVP1 demo, I
guess these are related. In game HUD text has this very-very transparent,
barely visible look and in game menu (that one which opens by ESC from a
started level) is a black screen. I'll attach a screenshot from demo for
completeness.

I've investigated a bit what's going on and apparently problem is in 3d calls,
it's drawn by ddraw calls, the program draws this HUD text etc using textured
quads w/ alpha blending for transparency and effects. So either this is a
problem with handling of some blend-related render states (according to its
opened source and somewhat supported by logs, for HUD text it mostly uses
SRCBLEND=SRCALPHA, DSTBLEND=ONE) or alpha channel is wrong in textures (i.e.
some texture loading problem).

So far I think it's most likely the latter - tried adding hacks to
drawPrimitive etc that forcefully set glBlendFunc(GL_SRC_ALPHA,
GL_ONE_MINUS_SRC_ALPHA) and it still looks wrong.


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