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Re: Problem with Gorm
From: |
Germán Arias |
Subject: |
Re: Problem with Gorm |
Date: |
Fri, 08 Jul 2011 18:38:12 -0600 |
Well, Gorm crash at line 959 in NSImage.m (when rep is equal to nil)
if (rep == nil)
return;
after call [self nativeDrawInRect: dstRect fromRect: .... in line 1293.
But definitely this don't have sense. Fortunately debug=yes solve the
problem.
On lun, 2011-07-04 at 12:23 -0600, Eric Wasylishen wrote:
> That's really strange. I don't see any #ifdef's in NSImage.m.
>
> Maybe you can try to compile without "debug=yes" (so you get the crash), but
> somehow add "-g" to the compile flags so debug info is generated. Do you get
> any info if you select stack frame 0 and type "l" (for listing source code)?
>
>
> On 2011-07-04, at 12:15 PM, Germán Arias wrote:
>
> > If the problem disappears with "debug=yes". Could be the cause a code
> > line inside a #ifdef DEBUG? A code line that should be outside of that
> > ifdef?
> >
> > On lun, 2011-07-04 at 10:41 +0200, Fred Kiefer wrote:
> >> Which backend are you using? That will result in different methods being
> >> called next and most likely the problem is one level deeper.
> >>
> >>
> >> I had a quick look into these new methods and didn't like too much what
> >> I saw there. We have a lot of code duplication between these two
> >> methods, but we also have differences there which I don't understand.
> >> Why do we use scaling for the native drawing but not for the gui drawing?
> >> Anyway, the code in native drawing should not check for
> >> isDrawingToScreen. When drawing to a PDF or PostScript surface we should
> >> be able to composite or dissolve, we just need to package that up
> >> correctly as backend operations. And of course need to have the PS and
> >> PDF context report back that they are able to support this.
> >>
> >> I also noticed that the new code wont fill the cached image rep with the
> >> image background colour. Why isn't this done and does this match the
> >> Cocoa behaviour?
> >> Why does the old code (guiDrawInRect:...) use PSgsave and PSgrestore
> >> around the cache drawing? We wont do any other operations on the cache
> >> and don't need to restore the old state.
> >>
> >> I think that we should start a discussion about this whole drawing code.
> >> Hopefully we end up with a deeper understanding of what should happen
> >> here and will then be able to package it up with a nice and clean call
> >> to the backend and three or four (almost?) correct implementations for
> >> this in GSContext, GSStreamContext and GSCairoContext. But then I may be
> >> completely wrong here, as I really don't understand much of this new code.
> >>
> >> On 03.07.2011 01:49, Germán Arias wrote:
> >>> Well, after compiling gui with "debug=yes" all works fine. But then,
> >>> recompiling gui just with "make" the problem is there again.
> >>>
> >>>
> >>> On sáb, 2011-07-02 at 11:36 -0600, Eric Wasylishen wrote:
> >>>> Hey German,
> >>>> I wasn't able to reproduce that in Gorm or Gemas, but it looks like it's
> >>>> coming from code I've worked on lately...
> >>>> Frame 1 of the backtrace is just the line which redirects -drawInRect:
> >>>> to -guiDrawInRect:, but frame 0 has no debug info. Would you be able to
> >>>> recompile -gui (and maybe -back as well) with debugging on (just make
> >>>> clean and make debug=yes), and see if it you can get a better backtrace?
> >>>> Thanks.
> >>>> Eric
> >>>>
> >>>>
> >>>> On 2011-07-01, at 4:20 PM, Germán Arias wrote:
> >>>>
> >>>>> When I select "Containers Palette" the app crash. The backtrace is:
> >>>>>
> >>>>> Program received signal SIGSEGV, Segmentation fault.
> >>>>> [Switching to Thread 0xb669fb30 (LWP 6463)]
> >>>>> 0x0847ac03 in ?? ()
> >>>>> (gdb) backtrace
> >>>>> #0 0x0847ac03 in ?? ()
> >>>>> #1 0xb7344734 in -[NSImage drawInRect:fromRect:operation:fraction:] (
> >>>>> self=0x86385f8, _cmd=0xb759a358, dstRect=
> >>>>> {origin = {x = 0, y = 0}, size = {width = 0, height = 0}},
> >>>>> srcRect=
> >>>>> {origin = {x = 0, y = 0}, size = {width = 0, height = 0}},
> >>>>> op=NSCompositeSourceOver, delta=1) at NSImage.m:1297
> >>>>> #2 0xb73405dd in -[NSImage drawAtPoint:fromRect:operation:fraction:] (
> >>>>> self=0x86385f8, _cmd=0xb759a320, point={x = 0, y = 0}, srcRect=
> >>>>> {origin = {x = 0, y = 0}, size = {width = 0, height = 0}},
> >>>>> op=NSCompositeSourceOver, delta=1) at NSImage.m:925
> >>>>> #3 0xb7344650 in -[NSImage
> >>>>> compositeToPoint:fromRect:operation:fraction:] (
> >>>>> self=0x86385f8, _cmd=0xb759a2d0, aPoint={x = 0, y = 9}, srcRect=
> >>>>> {origin = {x = 0, y = 0}, size = {width = 0, height = 0}},
> >>>>> op=NSCompositeSourceOver, delta=1) at NSImage.m:864
> >>>>> #4 0xb73402a1 in -[NSImage compositeToPoint:operation:]
> >>>>> (self=0x86385f8,
> >>>>> _cmd=0xb756f658, aPoint={x = 0, y = 9}, op=NSCompositeSourceOver)
> >>>>> at NSImage.m:811
> >>>>> #5 0xb72df7dc in -[NSCell drawInteriorWithFrame:inView:]
> >>>>> (self=0x8600bf0,
> >>>>> _cmd=0xb756f668, cellFrame=
> >>>>> {origin = {x = 0, y = 0}, size = {width = 9, height = 9}},
> >>>>> controlView=0x86393f0) at NSCell.m:2031
> >>>>> #6 0x086385f8 in ?? ()
> >>>>> #7 0xb756f658 in _OBJC_SELECTOR_TABLE ()
> >>>>> from /usr/GNUstep/Local/Library/Libraries/libgnustep-gui.so.0.21
> >>>>> ---Type<return> to continue, or q<return> to quit---
> >>>>> #8 0x00000000 in ?? ()
> >>>>> (gdb)
> >>>>>
> >>>>> FisicaLab also crash, when you open the help panel, with a similar
> >>>>> backtrace.
> >>
> >>
> >> _______________________________________________
> >> Gnustep-dev mailing list
> >> address@hidden
> >> https://lists.gnu.org/mailman/listinfo/gnustep-dev
> >
> >
> > _______________________________________________
> > Gnustep-dev mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/gnustep-dev
>
- Problem with Gorm, Germán Arias, 2011/07/01
- Re: Problem with Gorm, Eric Wasylishen, 2011/07/02
- Re: Problem with Gorm, Germán Arias, 2011/07/02
- Re: Problem with Gorm, Fred Kiefer, 2011/07/04
- Re: Problem with Gorm, Germán Arias, 2011/07/04
- Re: Problem with Gorm, Eric Wasylishen, 2011/07/04
- Re: Problem with Gorm, Germán Arias, 2011/07/04
- Re: Problem with Gorm,
Germán Arias <=
- Re: Problem with Gorm, Fred Kiefer, 2011/07/11
- Re: Problem with Gorm, Germán Arias, 2011/07/11
- Re: Problem with Gorm, Eric Wasylishen, 2011/07/11
- Re: Problem with Gorm, Germán Arias, 2011/07/11
- NSImage drawing (was Re: Problem with Gorm), Eric Wasylishen, 2011/07/04
- Re: NSImage drawing (was Re: Problem with Gorm), Fred Kiefer, 2011/07/05
- Re: NSImage drawing (was Re: Problem with Gorm), Quentin Mathé, 2011/07/06