[Bug 10342] Add support for SubPixel font rendering

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=10342





--- Comment #23 from BlackStar <BurnSpamAddress at gmail.com>  2008-11-25 08:35:42 ---
I no longer have the patch (it never worked, so I deleted it along with the
working directory), but I can describe what I tried to do:

In dlls/winex11.drv/xrender.c, there is an enumeration called "AA_type", which
contains all available antialiasing values. Out of those, it seems only AA_None
and AA_Grey are ever used.

Using AA_type as a starting point, I modified the function UploadGlyph (around
line 602) to acknowledge more AA types (switches on line 614 and 690).

That's about the extent of what I tried to do. From my understanding of the
code, we will need to add functions in the spirit of
SharpGlyphMono/SharpGlyphGray (what do these do?), enable them in
X11DRV_XRender_ExtTextOut (line 1314). We will also need to change
GetCacheEntry (line 452) to accept the new AA formats.

It's almost certain that there's a lot more work involved than what I outlined
here. Unfortunately, I'm not familiar with Xrender or Wine's internals - anyone
familiar with Wine's font rendering code care to share his knowledge?


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