Re: [directfb-dev] Error in running gtk example on cross compiled GTK with DirectFB on MIPS board

[kaka <share.kt@gmail.com>]

Hi Denis,

 

I am writing gfx driver for DirectFB on BroadCom chip.

Right now i am using FBdev system to display graphics on BCM chip(MIPS platform)  which should use software fallbacks from DirectFB.Later on i 'll add hardware accelerartion also. 

My framebuffer driver for BCM chip is working fine. I have checked it by running a small example. Also the gfxdriver for directFB is working fine for Video and Image.

The problem which i am facing right now is that i am running the fill rectangle example.

IT is not filling any color in the rectangle. I am always getting the black screen.

 

Could you plz provide some clue on it ?

Also could you plz specify the file name and function in which directFB library is writing into the framebuffer memory the color pixel information?

 

Thanks in Advance.

kaka

 

On 12/17/07, Denis Oliver Kropp <dok@directfb.org> wrote:

kaka wrote:
> HI ALL,
>
> We have successfully cross compiled GTK and DIRECTFB with all its
> dependencies for MIPS board.
> On running the basic test example of GTK, it is getting struck in the thread
> loop infinitely.
> We had put the  "debug printf"  statement in the gtkmain.c and debugged the
> test example.
> It is getting struck in the * g_main_loop_run (loop);* given below is
> the  code(code
> snippet from gtkmain.c)
>
> void
> gtk_main (void)
> {
>   GList *tmp_list;
>   GList *functions;
>   GtkInitFunction *init;
>   GMainLoop *loop;
> printf("\n%s :: %d\n",__FILE__,__LINE__);
>   gtk_main_loop_level++;
>
>   loop = g_main_loop_new (NULL, TRUE);
>   main_loops = g_slist_prepend (main_loops, loop);
> printf("\n%s :: %d\n",__FILE__,__LINE__);
>   tmp_list = functions = init_functions;
>   init_functions = NULL;
>
>   while (tmp_list)
>     {
>       init = tmp_list->data;
>       tmp_list = tmp_list->next;
>
>       (* init->function) (init->data);
>       g_free (init);
>     }
>   g_list_free (functions);
> printf("\n%s :: %d\n",__FILE__,__LINE__);
>   if (g_main_loop_is_running (main_loops->data))
>     {
>    * printf("\n%s :: %d\n",__FILE__,__LINE__);
>       GDK_THREADS_LEAVE ();
>       g_main_loop_run (loop);
>       GDK_THREADS_ENTER ();
> *      printf("\n%s :: %d\n",__FILE__,__LINE__);

That's normal. If you want runtime you have to create a timer or register idle or timeout functions.

>       gtk_container_add (GTK_CONTAINER (window), pMainWidget);
>  printf("\n\n\ngtk_container_add (GTK_CONTAINER (window),
> pMainWidget);\n\n\n") ;
>       gtk_widget_show (window);
> printf("\n\n\nABHISHEK START OF gtk_main\n\n\n");
>       gtk_main ();
> printf("\n\n\nABHISHEK END OF gtk_main\n\n\n");
>       return 0;

Simply/weakly put: it should not return before the application is quit.

--
Best regards,
Denis Oliver Kropp

.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/                 |
"------------------------------------------"

-- 
Thanks & Regards,
kaka