Re: [GtkGLExt] gtkglextmm program runs very slowly on a better video card in windows vista

[明覺 <shi minjue gmail com>]

2009/5/25 Paul Robert Hayes <prh cemtach com>:
> I have found that adding a forced "invalidate" can help with updates, but
> there appears to be no consistent way.  Between driver updates it changes as
> well (OpenSuSE, and ATI).  Sometimes it updates far too much.
>
>
> gdk_window_invalidate_rect (drawingarea3->window, &drawingarea3->allocation,
> FALSE);

thank you, I solved it by the similar way, at the end of each
changing, add: this->get_gl_window()->get_window()->invalidate(true);

>
> Regards
>
>
> 明覺 wrote:
>
> 2009/5/24 明覺 <shi minjue gmail com>:
>
>
> I have spent 2 whole days working on porting my gtkglextmm program
> from linux to windows, now it almost succeeds, except the last issue -
> runs very slowly on nvidia geforce 9500 video card in windows vista.
> On the same machine, I installed debian linux, and the program runs
> smoothly there; on another machine, with a intel integrated video card
> in windows vista, the same application also runs smoothly.
> any advice on this problem? thanks
>
>
> it seems to be a cache problem, I found that if I add some cout<< to
> output something, the opengl drawing area will appear quicker, the
> more I output by cout<<, the quicker it will appear, so it seems that
> I need to command to output the video card cache.
>
>
> --
> 我的操?系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
> Gtkmm/Gtkglextmm Scim Totem Pidgin.
>
>
>
>
> --
> Dr. Paul Robert Hayes
> CEO, CEMTACH
> prh cemtach com
> 540 809 5839
> www.cemtach.com
> Specializing in simulation, test, visualization and analysis of
> electromagnetic systems.
>



-- 
我的操?系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
Gtkmm/Gtkglextmm Scim Totem Pidgin.