[Bug 10342] Add support for SubPixel font rendering

[wine-bugs at winehq.org]

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





--- Comment #35 from Erik Johnson <junk1112 at new.rr.com>  2008-12-22 22:42:09 ---
Thank you for the patch.  I had already tried using the various filtering
methods in freetype by modifying that line, to no avail.  When I do a close-up
pixel examination between my two screenshots, it appears that they are
identical, except that the farthest left subpixel component and the farthest
right subpixel component of some glyphs (in the Notepad one) are being
truncated.  In other words, the LCD_DEFAULT is rendering as you would expect,
but somewhere along the line the glyph is being forced into a box that doesn't
allow for the edge FIR subpixels to bleed into it.  Let's say the glyph is
really 10 pixels wide in mono.  In FIR filtering, the glyph may need to be 12
(1+10+1) pixels wide, in order to account for the subpixel averaging that can
occur on either side.  My guess is that is what is happening here, but I'm not
sure if that is happening in your patch, or at some other step.  Once again,
it's possible that it is only affecting my setup (as seems to be the case with
a lot of things!)

Thank you again for your efforts on this!


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