http://bugs.winehq.org/show_bug.cgi?id=21515
--- Comment #53 from P.Panon ppanon@shaw.ca 2010-02-10 10:42:31 --- (In reply to comment #48)
R600+ cards(the dx10 ones) support unconditional NP2 textures(GL_ARB_texture_non_power_of_two) just fine, so no quirk is needed for them. We can just use whatever the driver advertises.
Except that according to cruiseoveride, who has an HD4800 running the Mesa driver that should not require the quirk, that his card doesn't work that way. He just tested in #44 that rendering was incorrect without the quirk, and in #47 that rendering was correct with the quirk. I agree with you about how it should be, but cruiseoveride seems to have determined empirically that the opposite is true.