Re: Problem with NSOpenGLView

[German Arias]

I added the line in awakeFromNib method, but the same problem. This is 
the gdb output:

(gdb) run
Starting program: /home/german/Practicas/GL/GL.app/GL
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x0018e246 in glGetError () from /usr/lib/libGL.so.1
(gdb) backtrace
#0  0x0018e246 in glGetError () from /usr/lib/libGL.so.1
#1  0x0122ad01 in -[XGGLPixelFormat drawableForWindow:] (self=0x8339c20,
   _cmd=0x124d120, xwindowid=27263014) at XGGLFormat.m:417
#2  0x0122d1a3 in -[XGGLContext setView:] (self=0x8158798, _cmd=0x559828,
   view=0x83387f8) at XGGLContext.m:485
#3  0x00399544 in -[NSOpenGLView openGLContext] (self=0x83387f8, 
_cmd=0x559888)
   at NSOpenGLView.m:133
#4  0x00399772 in -[NSOpenGLView _lockFocusInContext:inRect:] 
(self=0x83387f8,
   _cmd=0x59c0d0, ctxt=0x83343a8, rect=...) at NSOpenGLView.m:225
#5  0x00439955 in -[NSView displayRectIgnoringOpacity:inContext:] (
   self=0x83387f8, _cmd=0x59c130, aRect=..., context=0x83343a8)
   at NSView.m:2478
#6  0x00439c6f in -[NSView displayRectIgnoringOpacity:inContext:] (
   self=0x8337460, _cmd=0x59c130, aRect=..., context=0x83343a8)
   at NSView.m:2512
#7  0x00439c6f in -[NSView displayRectIgnoringOpacity:inContext:] (
   self=0x8330408, _cmd=0x59c130, aRect=..., context=0x0) at NSView.m:2512
#8  0x0042bb7c in -[NSView displayRectIgnoringOpacity:] (self=0x8330408,
   _cmd=0x59c120, aRect=...) at NSView.m:2425
#9  0x00439449 in -[NSView displayIfNeededInRectIgnoringOpacity:] (
   self=0x8330408, _cmd=0x59c110, aRect=...) at NSView.m:2357
#10 0x0042b9d7 in -[NSView displayIfNeededInRect:] (self=0x8330408,
   _cmd=0x59c108, aRect=...) at NSView.m:2335
---Type <return> to continue, or q <return> to quit---
#11 0x0042b7dc in -[NSView displayIfNeeded] (self=0x8330408, _cmd=0x5a2db0)
   at NSView.m:2317
#12 0x00442a0e in -[NSWindow orderWindow:relativeTo:] (self=0x8330300,
   _cmd=0x5a2d78, place=NSWindowAbove, otherWin=-1) at NSWindow.m:1735
#13 0x0043e418 in -[NSWindow orderFrontRegardless] (self=0x8330300,
   _cmd=0x502010) at NSWindow.m:1652
#14 0x002c85bd in -[NSApplication activateIgnoringOtherApps:] 
(self=0x815da18,
   _cmd=0x5020c0, flag=1 '\001') at NSApplication.m:1272
#15 0x002c76e3 in -[NSApplication finishLaunching] (self=0x815da18,
   _cmd=0x502398) at NSApplication.m:1095
#16 0x002ca07f in -[NSApplication run] (self=0x815da18, _cmd=0x4f8180)
   at NSApplication.m:1508
#17 0x002a9c0a in NSApplicationMain (argc=1, argv=0xbfffe544) at 
Functions.m:89
#18 0x08048c27 in main (argc=1, argv=0xbfffe544) at GL_main.m:28


Eric Wasylishen escribió:
> Hey,
> Could you run it in gdb and post the stack trace?
>
> I had some trouble with pixel formats causing segfaults. In a Cocoa app I was 
> working on porting, I had to add this line in the NSOpenGLView subclass's 
> -awakeFromNib method:
>
> [self setPixelFormat: [NSOpenGLView defaultPixelFormat]];
>
> Perhaps GNUstep's NSOpenGLView -initWithCoder method needs some tweaking?
>
> Eric
>
> On Aug 20, 2010, at 5:20 PM, German Arias wrote:
>
>   
> > I'm trying to use NSOpenGLView, but I'm facing some problems. And I'm not sure 
> > if this is a problem with my GL installation or a problem on GNUstep. I have a 
> > simple app:
> >
> > 1) Make a new app with PC.
> > 2) Edit the gorm file: Add a window and a CostomView.
> > 3) Make a subclass of NSOpenGLView.
> > 4) Set the class of CustomView to the new subclass.
> > 5) Add the necessary flags and directories to use GL.
> > 6) Compile the app.
> > 7) Test the app: Segmentation fault.
> >
> > Any suggestion? I have some code into the method drawRect:. But even if I 
> > comment this code, the app crash.
> >
> > _______________________________________________
> > Discuss-gnustep mailing list
> > Discuss-gnustep@gnu.org
> > http://lists.gnu.org/mailman/listinfo/discuss-gnustep
> >     
>
>
>