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[Tcl-bugs] [ tktoolkit-Bugs-917195 ] TkMacOSXXPutPixel() / tkdvi
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From: SourceForge.net <no...@so...> - 2004-03-18 15:41:27
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Bugs item #917195, was opened at 2004-03-16 11:06 Message generated for change (Comment added) made by quignard You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=112997&aid=917195&group_id=12997 Category: 66. Mac Window Operations Group: None Status: Open Resolution: None Priority: 5 Submitted By: matthieu quignard (quignard) Assigned to: Daniel A. Steffen (das) Summary: TkMacOSXXPutPixel() / tkdvi Initial Comment: Submitted by Matthieu Quignard (qui...@lo...) as requested by Daniel A. Steffen (das) Context : building tkdvi (0.4) by Anselm Lingnau, on MacOS X (10.2.8) with Tcl/Tk Aqua (8.4.6). Configure : set tcldir=/Library/Frameworks/Tcl.framework/Versions/ Current set tclincdir=$tcldir/Headers set tkdir=/Library/Frameworks/Tk.framework/Versions/ Current set tkincdir=$tkdir/Headers set kpathdir=/sw/lib set kpathincdir=/sw/include/kpathsea (kpathsea got from fink tetex-dev) ./configure --with-tcl=$tcldir --with-tclinclude=$tclincdir -- with-tk=$tkdir --with-tkinclude=$tkincdir --with- kpathsea=$kpathdir --with-kpathseainclude=$kpathincdir --enable-debug -- disable-threads Fix the Makefile in ./dvi : * Add -DHAVE_PROTOTYPES=1 to compile with gcc 3.3 and remove -DUSE_STUBS_TK=1 -DUSE_STUBS_TCL=1 * link with -L/Library/Frameworks/Tk.framework/Versions/ 8.4 -L/Library/Frameworks/Tcl.framework/Versions/8.4 - framework Tcl -framework Tk -lpthread -framework CoreFoundation Compiling and linking are succesfull. Testing (tkdvi testdvi/mini) leads to Segmentation fault. Here is the crash report : Date/Time: 2004-03-16 10:12:24 +0100 OS Version: 10.2.8 (Build 6R73) Host: vercors.loria.fr Command: Wish Shell PID: 2138 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_INVALID_ADDRESS (0x0001) at 0xffff0000 Thread 0 Crashed: #0 0x91ad9754 in SetCPixel #1 0x0b094518 in TkMacOSXXPutPixel #2 0x01338fc0 in GlyphToImageShrink #3 0x013391c4 in RenderGlyph #4 0x013326fc in Dvi_DoInterpret #5 0x01339a58 in DviImgDisplay #6 0x0b03b044 in Tk_RedrawImage #7 0x0b013bac in DisplayImage #8 0x0b00ef5c in DisplayCanvas #9 0x0a066f74 in TclServiceIdle #10 0x0a056910 in Tcl_DoOneEvent #11 0x0b033628 in MapFrame #12 0x0a066f74 in TclServiceIdle #13 0x0a056910 in Tcl_DoOneEvent #14 0x0b02d2f8 in Tk_MainLoop #15 0x0b04ab50 in Tk_MainEx #16 0x00010180 in 0x10180 #17 0x0000ffa8 in 0xffa8 #18 0x0000fe28 in 0xfe28 Thread 1: #0 0x9002568c in select #1 0x0b08a658 in NotifierThreadProc #2 0x90020c28 in _pthread_body PPC Thread State: srr0: 0x91ad9754 srr1: 0x0200f030 vrsave: 0x00000000 xer: 0x20000000 lr: 0x91ad9740 ctr: 0x902216d0 mq: 0x00000000 r0: 0x91ad9740 r1: 0xbfffef80 r2: 0x01436788 r3: 0x00000000 r4: 0x00000000 r5: 0xbffff048 r6: 0x69012501 r7: 0x0133c9d8 r8: 0x0128623c r9: 0xffff0000 r10: 0x0133c8d8 r11: 0xa1a50cd0 r12: 0x902216d0 r13: 0x00000000 r14: 0x00000000 r15: 0x00000000 r16: 0xbffff184 r17: 0xbffff180 r18: 0x0140ce08 r19: 0x00000005 r20: 0x00000000 r21: 0x01286234 r22: 0x00000000 r23: 0x00000008 r24: 0x00000039 r25: 0xbffff048 r26: 0x00000000 r27: 0x00000000 r28: 0x69012501 r29: 0x00000000 r30: 0x0129be08 r31: 0x01338d3c ---------------------------------------------------------------------- >Comment By: matthieu quignard (quignard) Date: 2004-03-18 16:41 Message: Logged In: YES user_id=999056 Here is what I got : x = 0 y = 0 cPix : red = green = blue = 255 image = (XImage *) 0xb30b88 image->data = 0xb44408 "ÿÿÿÿ" BUT : (gdb) call (void) QDDebugPrintPortInfo(image->data) Program received signal EXC_BAD_ACCESS, Could not access memory. 0xb97213f4 in GetPortHiliteColor () ---------------------------------------------------------------------- Comment By: Daniel A. Steffen (das) Date: 2004-03-17 11:38 Message: Logged In: YES user_id=90580 set a breakpoint in gdb on TkMacOSXXPutPixel() (tk/macosx/ tkMacOSXXStubs.c) and check that - image->data is not NULL - image->data is a calid quickdraw port (via gdb function 'call (void) QDDebugPrintPortInfo(image- >data)') - x,y are valid coordinates in the image - cpix is a valid color value ---------------------------------------------------------------------- Comment By: matthieu quignard (quignard) Date: 2004-03-17 11:32 Message: Logged In: YES user_id=999056 ERRATUM. It IS actually a bug in XPutPixel, I took the wrong test file. XPutPixel(glyphImage, x, y, 0) does not work better as the former one. Sorry. MQ ---------------------------------------------------------------------- Comment By: matthieu quignard (quignard) Date: 2004-03-17 11:19 Message: Logged In: YES user_id=999056 I changed the last parameter in function XPutPixel (tkdvi/dvi/image.c), and set it to 0 : there is no SegFault anymore... Before : XPutPixel(glyphImage, x, y, colorContextPtr->pixelTable[theSample]->pixel); After : XPutPixel(glyphImage, x, y, 0); Perhaps we should look closer to ColorContext *colorContextPtr... ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=112997&aid=917195&group_id=12997 |