Re: [Stellarium-pubdevel] Font corruption workaround

[Peter M. <scr...@mo...>]

On 23/06/2010 0:34, Fabien Chéreau wrote:
>
> On Tue, Jun 22, 2010 at 16:28, Peter Mousley <scr...@mo... 
> <mailto:scr...@mo...>> wrote:
>
>     On 22/06/2010 20:16, Fabien Chéreau wrote:
>
>         Before deciding whether to merge or not in trunk, I would
>         really like to see an alternative Qt based solution, not
>         involving win32 API. I just played a bit with the
>         QImage/QPixmap idea, and it works more or less, although it's
>         a bit slow. See the attached 10 lines patch.
>
>         Fabien
>
>
>     Attached is an alternative that is much closer to working.  The
>     two main issues are:
>
> Good! That should even be faster, by bypassing the QPainter stuff.
>
>     1/ star labels only show correctly when a cluster/nebula is
>     selected (need the pulsing selection box)
>      - planet labels, grid labels, etc., are fine
>      - star labels are actually there, but they're black boxes
>
>
> try to glEnable(GL_BLEND)
I had expected it was already set (which, upon checking, it is), so 
hadn't bothered with it.  Added it anyway - makes no difference.  I've 
also noticed that the star labels disappear when constellation art is 
on, but the planet labels are still okay.  What's different between 
planet and star labels? (I'm guessing there must be some GL state 
different? But what?)

>     2/ text is not rotated (grid labels for example)
>      - is this a limitation of bitmap images?
>
>
> glDrawPixel doesn't use the matrix. Try to draw the texture using a 
> real gl call.
>
As an infamous politician here once said, "Please explain!"


> Thanks a lot! If you make taht working you'll be a hero for ATI users ;)
>
>
I've been delaying purchase of a new laptop because the one I want only 
comes with ATI.  Hadn't really thought that Stellarium may not work, but 
I need a replacement soon - need to get this bug fixed!

I'll look at it again in the morning.

Peter