On Nov 23, 2009, at 8:21 AM, Andrey Gruzdev wrote:
> Hello.
> The problem with non-OpenGL widgets takes place only with new GTK versions.
> Then I wrote this patch and test it with gtk 2.14 beta framework build and some later builds (built with jhbuild script) this problem does not appear.
> Unfortunately I have not free time now but I hope to get it soon and spend some for this project.
> There are no Low Level API used in my patch. Only NSOpenglView, NSOpenglContext and some related functions.
Could it be that NSOpenGL - View/Context, gets the wrong coordinates?
I don't know windowing in Cocoa but I guess there is a hierarchy of NSView and that Context needs a NSRect from
the gldrawable gtk widget?
/Jacob
> Andrey.
>
> On 22.11.2009, at 20:27, Jack Skellington wrote:
>
>> The problem seems to be that when rendering to the OpenGL capable
>> widget it expands to fill the entire window.
>> If I resize the window the gtk widgets are visible for a split second
>> before they are covered with white background.
>> But the OpenGL rendering works fine otherwise.
>>
>> This is my main rendering loop:
>>
>> gboolean G_MODULE_EXPORT render(gpointer data){
>>
>> GtkWidget *widget = GTK_WIDGET(data);
>>
>> GdkGLContext *glcontext = gtk_widget_get_gl_context (widget);
>> GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget);
>>
>> if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext))
>> return FALSE;
>>
>>
>> glClearColor (1.0, 1.0, 1.0, 1.0);
>> glClearDepth (1.0);
>> glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>>
>> engineIteration();
>>
>> gdk_gl_drawable_swap_buffers (gldrawable);
>>
>> gdk_gl_drawable_gl_end (gldrawable);
>>
>> return TRUE;
>> }
>>
>> Regards
>> Jacob K
>>
>> On Sun, Nov 22, 2009 at 11:49 AM, Jacob Juul Kolding <jacob juvul com> wrote:
>>> On Nov 21, 2009, at 6:30 AM, Braden McDaniel wrote:
>>>
>>> On Sat, 2009-11-21 at 02:33 +0100, Jack Skellington wrote:
>>>
>>> Hi all!
>>>
>>> I'm currently working on porting a commercial Gtk+ OpenGL App to Snow
>>>
>>> Leopard using the actively developed and maintained Gtk+ OS X Quartz
>>>
>>> backend. My last problem now is that GtkGlExt only works with X11. I'm
>>>
>>> not familiar with the Low Level OS X API's, so I'd properly wouldn't
>>>
>>> be able to write the backend myself but I think it would be awesome if
>>>
>>> someone here could help with the native OS X backend, getting closer
>>>
>>> to a fully supported native Gtk+ :)
>>>
>>> This patch is probably a good starting point:
>>>
>>> https://sourceforge.net/tracker/?func=detail&aid=2750584&group_id=54333&atid=473436
>>>
>>> I'll try to get back to reviewing this soon; though it might have to
>>> wait until I get my KVM back from RMA.
>>>
>>> Do let me know how it goes for you.
>>>
>>> I managed to apply the patch and compile both GtkGLExt and my app, but when
>>> I start my app
>>> the main windows is complete empty of any gtk widgets (white background
>>> everywhere), the only thing thats visible is the borders I draw in the
>>> opengl area, but
>>> when I move the mouse up the the invisible file menu I'm able to open other
>>> (non opengl) windows which works as expected??
>>> Regards
>>> Jacob Kolding
>>> dacobi juvul com
>>>
>>> --
>>> Braden McDaniel <braden endoframe com>
>>>
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