How are you creating the AG_Pixmap widget? AG_PixmapFromSurface() will
only map the surface argument without duplicating it, so the surface
must remain valid for the lifetime of the widget.
AG_PixmapFromSurfaceCopy(), however, will implicitely duplicate the
surface for you.
To be consistent with what most other widgets use for functions accepting
surface arguments, I should really rename them:
AG_PixmapFromSurfaceCopy() -> AG_PixmapFromSurface()
AG_PixmapFromSurface() -> AG_PixmapFromSurfaceNODUP()
but unfortunately I can't do that without breaking compatibility.
On Mon, Aug 23, 2010 at 11:12:22AM +0000, A. Steinhoff wrote:
>
> Hi,
>
> I have a single window SDL app with three agar windows.
> When I close the first one and in one of the remaining windows from tab to tab
> .... the application craches. Below is the backtrace of ddd:
>
> #0 0xb7ec687e in AG_PixelFormatDup (pf=0x69) at surface.c:181
> #1 0xb7ec6a98 in AG_SurfaceNew (type=AG_SURFACE_PACKED, w=100, h=105,
> pf=0x69,
> flags=2) at surface.c:241
> #2 0xb7ec88aa in AG_ScaleSurface (ss=0x80d4c88, w=100, h=105, ds=0xb668a0bc)
> at
> surface.c:790
> #3 0xb7ea2138 in UpdateScaled (px=0x815bdc8) at pixmap.c:334
> #4 0xb7ea2215 in Draw (obj=0x815bdc8) at pixmap.c:361
> #5 0xb7e58713 in AG_WidgetDraw (p=0x815bdc8) at widget.c:887
> #6 0xb7e6f436 in Draw (obj=0x814c5d0) at box.c:155
> #7 0xb7e59854 in AG_WidgetInheritDraw (obj=0x814c5d0) at widget.c:1250
> #8 0xb7e58713 in AG_WidgetDraw (p=0x814c5d0) at widget.c:887
> #9 0xb7ea0977 in Draw (obj=0x814aca0) at notebook.c:143
> #10 0xb7e58713 in AG_WidgetDraw (p=0x814aca0) at widget.c:887
> #11 0xb7e5ac4b in Draw (obj=0x811e7e0) at window.c:473
> #12 0xb7e58713 in AG_WidgetDraw (p=0x811e7e0) at widget.c:887
> #13 0xb7ed0444 in SDLFB_RenderWindow (win=0x811e7e0) at drv_sdlfb.c:181
> #14 0xb7f3b810 in AG_WindowDraw (win=0x811e7e0) at
> /usr/include/agar/agar/gui/window.h:184
> #15 0xb7f3b688 in AG_Render () at
> /home/DACHS/dView/fb_lib/ArGLLIB/agcore02.c:136
>
> Cheers
>
> --Armin
>
>
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