gtkglextmm program runs very slowly on a better video card in windows vista

[明覺]

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

--
我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
Gtkmm/Gtkglextmm Scim Totem Pidgin.
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[明覺]

2009/5/24 明覺 <shi.minjue@...>:
> 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
>

I also found that, in nvidia gefore 9500 video card in windows vista,
all the example gtkglext programs run in a strange way, the opengl
drawing area only refreshs when my mouse is over there, if the mouse
is out of the window, the drawing area will keep unchanged.
how to solve it?


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



--
我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
Gtkmm/Gtkglextmm Scim Totem Pidgin.
_______________________________________________
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[明覺]

2009/5/24 明覺 <shi.minjue@...>:
> 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.
>
> --
> 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
> Gtkmm/Gtkglextmm Scim Totem Pidgin.
>



--
我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
Gtkmm/Gtkglextmm Scim Totem Pidgin.
_______________________________________________
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[Paul Robert Hayes]

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);

Regards


明覺 wrote:

2009/5/24 明覺 shi.minjue@...:
  

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.
  

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

    

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[明覺]

2009/5/25 Paul Robert Hayes <prh@...>:
> 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@...>:
>
>
> 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.
>
>
> --
> 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution
> Gtkmm/Gtkglextmm Scim Totem Pidgin.
>
>
>
>
> --
> Dr. Paul Robert Hayes
> CEO, CEMTACH
> prh@...
> 540 809 5839
> www.cemtach.com
> Specializing in simulation, test, visualization and analysis of
> electromagnetic systems.
>

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