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  • Status of openGL support in GtkAda.

    From Rod Kay@21:1/5 to All on Thu Sep 21 18:38:02 2023
    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.

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  • From Vadim Godunko@21:1/5 to Rod Kay on Mon Oct 2 01:44:16 2023
    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.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rod Kay@21:1/5 to Vadim Godunko on Mon Oct 30 20:15:27 2023
    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).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rod Kay@21:1/5 to Vadim Godunko on Mon Oct 30 20:34:35 2023
    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).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rod Kay@21:1/5 to Vadim Godunko on Mon Oct 30 20:43:30 2023
    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).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rod Kay@21:1/5 to Vadim Godunko on Mon Oct 30 20:39:16 2023
    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).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rod Kay@21:1/5 to All on Mon Oct 30 21:54:24 2023
    Ugh ... sorry about the multiples.

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

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)