[Bug 13801] Very slow text rendering in AutoCAD

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=13801





--- Comment #21 from max at veneto.com  2008-06-27 11:23:33 ---
(In reply to comment #20)
> Hi, i can see slow downs now yeah; it still seems workable but maybe that's
> because i have a very expensive fast computer ;)

Wow, finally confirmed !!! :-)
I've got a quite fast notebook (core 2 duo, 2.4 GHz), but for me that's NOT
workable.... Well, I'm very fast using cad, indeed :-)
BTW, that one was a "purged down" drawing, still not the real one.... That one
I'm finishing it, it'll become 3 times as complex on the end... And if you
start working on paper space the slow down is multiplied by 5 at least.
> 
> Unfortunatley it's impossible to get a +relay log, probably copyprotection? So
> currently rather stuck now. The only thing i noticed is that when i compilw
> wine with the ./configure --without-freetype option the slowness seems to be
> gone again, but then again the fonts look rather ugly. Is that the same for you
> 

Well, I guess that taking out freetype makes wine to not use TT, so it's the
same case ad second example I've post.
I tried too a relay/snoop, but no way.... those damn'd copy protections...
their only usefulness is to make problems to registered users.
Even a trace+all don't work, but yesterday I could manage to have some traces
on gdi,graphics, x11, fonts, bitmap, and so on.
It seems to me that on TT fonts it makes hard usage of bitmap2dib and
dib2bitmap copy... but I'm not very good on analyzing it.
You can do yourself, use the pipe trick in wiki, it does speed up very much the
analysis clipping down the trace output.
> 
> I wonder if other programs like eDrawingsViewer behave the same. Could you give
> that a try http://www.edrawingsviewer.com/
> 
> i see a bit of a  difference in speed, can you confirm that. Maybe we could get
> a +relay from that app, pionting to the cause for autocad
> 

I'll try it this night... Is it an autodesk app ? I think the problem is
because of some sort of optimization autodesk put inside autocad, used just on
particular zoom factors.
Maybe some older autocad has the same behaviour and less dummy copy protection
scheme ?

Max


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