[Haskell-beginners] Performance problem with Haskell/OpenGL/GLFW

[Hollister Herhold]

Okay, I think I just figured this out. Well, HOW to get it working with the accelerated renderer.

I was wondering a simple way to check renderer info so I ran glxinfo. This (automatically) fired up X11, and then on a hunch I re-ran Test2 with X11 running and got this:

hhmacbook:~/Development/haskell/OpenGL:57> ./Test2 
hardware
(2,7,7)
(3,2,0)
hhmacbook:~/Development/haskell/OpenGL:58> 

AH HA! I then quit X11 and re-ran Test2, and got this:

hhmacbook:~/Development/haskell/OpenGL:58> ./Test2 
software
(2,7,7)
(3,2,0)
hhmacbook:~/Development/haskell/OpenGL:59> 

SO- If you want the accelerated renderer, you need to have X11 running.

Now, I have no idea WHY this is the case, but there you go.

Hope this helps.

-Hollister



On Mar 10, 2013, at 3:10 PM, Hollister Herhold wrote:

> 
> That's what I thought from looking at the output from dtruss.
> 
> Is this a GLFW-only issue? It seems unlikely that Haskell OpenGL apps in general have been using the software renderer.
> 
> 
> 
> On Mar 10, 2013, at 1:47 PM, Brandon Allbery wrote:
> 
>> On Sun, Mar 10, 2013 at 1:27 PM, Hollister Herhold <hollister at fafoh.com> wrote:
>> On Mar 10, 2013, at 12:09 PM, Brandon Allbery wrote:
>>> On Sun, Mar 10, 2013 at 5:38 AM, Jesper Särnesjö <sarnesjo at gmail.com> wrote:
>>> To remove any possibility of the problem being in GLFW-b or OpenGLRaw,
>>> I created two new programs, one in Haskell [1] and one in C [2], that
>>> Check whether the Haskell OpenGL binding is using the X11 libraries instead of native GUI. My 
>> 
>> Digging... Is that a configurable thing?
>> 
>> I just checked and it looks like it's at least trying to use the native framework.
>>  
>> -- 
>> brandon s allbery kf8nh                               sine nomine associates
>> allbery.b at gmail.com                                  ballbery at sinenomine.net
>> unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
>> _______________________________________________
>> Beginners mailing list
>> Beginners at haskell.org
>> http://www.haskell.org/mailman/listinfo/beginners
> 
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
> http://www.haskell.org/mailman/listinfo/beginners

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/beginners/attachments/20130310/507c98a7/attachment-0001.htm>