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devel / comp.lang.ada / Status of openGL support in GtkAda.

SubjectAuthor
* Status of openGL support in GtkAda.Rod Kay
`* Re: Status of openGL support in GtkAda.Vadim Godunko
 +- Re: Status of openGL support in GtkAda.Rod Kay
 +- Re: Status of openGL support in GtkAda.Rod Kay
 +* Re: Status of openGL support in GtkAda.Rod Kay
 |`- Re: Status of openGL support in GtkAda.Rod Kay
 `- Re: Status of openGL support in GtkAda.Rod Kay

1
Status of openGL support in GtkAda.

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Status of openGL support in GtkAda.
Date: Thu, 21 Sep 2023 18:38:02 +1000
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 by: Rod Kay - Thu, 21 Sep 2023 08:38 UTC

Hello.all,

Has anyone had any success using openGL in GtkAda ?

I tried a quick test today and although the 'Gtk.GLArea' and
'Gdk.GLContext' packages are present, I was unable to get a GL context.

Also, the testgtk program has no openGL demo, as it used to have.

I used openGL/GtkAda to good effect many years ago. Has openGL
support then been dropped completely ?

I recall there was a Gtk3 bug related to openGL and thought that
might possibly be the reason why it is absent in GtkAda. Does GtkAda use
Gtk4, yet ?

I'm quite keen to try my hand at game programming (and have
developed an Ada game engine library), so any advice/info would be
greatly appreciated.

Regards.

Re: Status of openGL support in GtkAda.

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Subject: Re: Status of openGL support in GtkAda.
From: vgodunko@gmail.com (Vadim Godunko)
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 by: Vadim Godunko - Mon, 2 Oct 2023 08:44 UTC

On Thursday, September 21, 2023 at 12:37:02 PM UTC+4, Rod Kay wrote:
>
> Has anyone had any success using openGL in GtkAda ?
>
> I tried a quick test today and although the 'Gtk.GLArea' and
> 'Gdk.GLContext' packages are present, I was unable to get a GL context.
>
> Also, the testgtk program has no openGL demo, as it used to have.
>
> I used openGL/GtkAda to good effect many years ago. Has openGL
> support then been dropped completely ?
>
> I recall there was a Gtk3 bug related to openGL and thought that
> might possibly be the reason why it is absent in GtkAda. Does GtkAda use
> Gtk4, yet ?
>
> I'm quite keen to try my hand at game programming (and have
> developed an Ada game engine library), so any advice/info would be
> greatly appreciated.
>
Rod,

GtkAda is binding for Gtk+ 3.24.x version, it doesn't support Gtk 4.

GtkAda doesn't provide OpenGL API binding, but supports OpenGL. There is no example in testgtk for this reason - it requires OpenGL API binding.

Re: Status of openGL support in GtkAda.

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Re: Status of openGL support in GtkAda.
Date: Mon, 30 Oct 2023 20:15:27 +1100
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 by: Rod Kay - Mon, 30 Oct 2023 09:15 UTC

On 2/10/23 19:44, Vadim Godunko wrote:
>>
>
> GtkAda is binding for Gtk+ 3.24.x version, it doesn't support Gtk 4.
>
> GtkAda doesn't provide OpenGL API binding, but supports OpenGL. There is no example in testgtk for this reason - it requires OpenGL API binding.

I'm very happy to report that openGL support in gtkada works fine. I
made a simple blunder in my initial test (not attaching the gl_Area
widget to my main window widget *sigh* :) ).

It is also possible to use an openGL engine (ie a renderer in it's
own ada task) with gtakada. A simple protected object to prevent mutual
access between the gtkada task (main environment task) and the openGL
engine task, is all that was required.

*Thank* you Vadim for letting me know that the openGL support is there.

Now, onto my game ! ... :D

"The game is afoot!"

Regards.

P.S. Would anyone know if gtkada might be 'upgraded' to support gtk4 ?
Just curious (gtk3 is fine for my purposes).

Re: Status of openGL support in GtkAda.

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Re: Status of openGL support in GtkAda.
Date: Mon, 30 Oct 2023 20:34:35 +1100
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 by: Rod Kay - Mon, 30 Oct 2023 09:34 UTC

On 2/10/23 19:44, Vadim Godunko wrote:
>>
>
> GtkAda is binding for Gtk+ 3.24.x version, it doesn't support Gtk 4.
>
> GtkAda doesn't provide OpenGL API binding, but supports OpenGL. There is no example in testgtk for this reason - it requires OpenGL API binding.

I'm very happy to report that openGL support in gtkada works fine. I
made a simple blunder in my initial test (not attaching the gl_Area
widget to my main window widget *sigh* :) ).

It is also possible to use an openGL engine (ie a renderer in it's
own ada task) with gtakada. A simple protected object to prevent mutual
access between the gtkada task (main environment task) and the openGL
engine task, is all that was required.

*Thank* you Vadim for letting me know that the openGL support is there.

Now, onto my game ! ... :D

"The game is afoot!"

Regards.

P.S. Would anyone know if gtkada might be 'upgraded' to support gtk4 ?
Just curious (gtk3 is fine for my purposes).

Re: Status of openGL support in GtkAda.

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Re: Status of openGL support in GtkAda.
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 by: Rod Kay - Mon, 30 Oct 2023 09:39 UTC

On 2/10/23 19:44, Vadim Godunko wrote:
>>
>
> GtkAda is binding for Gtk+ 3.24.x version, it doesn't support Gtk 4.
>
> GtkAda doesn't provide OpenGL API binding, but supports OpenGL. There
is no example in testgtk for this reason - it requires OpenGL API binding.

I'm very happy to report that openGL support in gtkada works fine. I
made a simple blunder in my initial test (not attaching the gl_Area
widget to my main window widget *sigh* :) ).

It is also possible to use an openGL engine (ie a renderer in it's
own ada task) with gtakada. A simple protected object to prevent mutual
access between the gtkada task (main environment task) and the openGL
engine task, is all that was required.

*Thank* you Vadim for letting me know that the openGL support is there.

Now, onto my game ! ... :D

"The game is afoot!"

Regards.

P.S. Would anyone know if gtkada might be 'upgraded' to support gtk4 ?
Just curious (gtk3 is fine for my purposes).

Re: Status of openGL support in GtkAda.

<uhntpe$d4a7$1@dont-email.me>

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Re: Status of openGL support in GtkAda.
Date: Mon, 30 Oct 2023 20:43:30 +1100
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 by: Rod Kay - Mon, 30 Oct 2023 09:43 UTC

On 2/10/23 19:44, Vadim Godunko wrote:
>>
>
> GtkAda is binding for Gtk+ 3.24.x version, it doesn't support Gtk 4.
>
> GtkAda doesn't provide OpenGL API binding, but supports OpenGL. There
is no example in testgtk for this reason - it requires OpenGL API binding.

I'm very happy to report that openGL support in gtkada works fine. I
made a simple blunder in my initial test (not attaching the gl_Area
widget to my main window widget *sigh* :) ).

It is also possible to use an openGL engine (ie a renderer in it's
own ada task) with gtkada. A simple protected object to prevent mutual
access between the gtkada task (main environment task) and the openGL
engine task, is all that was required.

*Thank* you Vadim for letting me know that the openGL support is there.

Now, onto my game ! ... :D

"The game is afoot!"

Regards.

P.S. Would anyone know if gtkada might be 'upgraded' to support gtk4 ?
Just curious (gtk3 is fine for my purposes).

Re: Status of openGL support in GtkAda.

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From: rodakay5@gmail.com (Rod Kay)
Newsgroups: comp.lang.ada
Subject: Re: Status of openGL support in GtkAda.
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 by: Rod Kay - Mon, 30 Oct 2023 10:54 UTC

Ugh ... sorry about the multiples.

My reply stalled when sending, so I tried re-sending ... several
times :/.

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