Bugs item #3007373, was opened at 2010-05-26 15:59 Message generated for change (Comment added) made by zmoelnig You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=507079&aid=3007373...

Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Pixes (pix_ objects)

Group: None

Status: Pending

Resolution: Fixed

Priority: 5 Private: No Submitted By: Thomas O Fredericks (mrtof) Assigned to: Nobody/Anonymous (nobody) Summary: pix_resize crashes PD if a dimension is set before rendering

Initial Comment: pix_resize crashes PD once the gemwin is created if a "dimen 25 25" was sent to the object before the gemwin was created. This also happens if the dimensions are set as arguments.

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Comment By: IOhannes m zmlnig (zmoelnig)

Date: 2010-05-26 18:11

Message: ah, i finally managed to reproduce. the problem seems to happen only with greyscale images.

i suspect that the internally used gluScaleImage() needs a bit more memory allocated than just the target image.

a simple workaround is, to do the first resize to a bigger image (e.g. only downsize once the rendering has started); the image will not free the allocated space if the new size fits into the old memory, thus giving you enough headroom.

i committed a fix to svn/trunk with revision #3358 i committed a fix to svn/branches/0.92 with revision #3360

this "fix" assumes that 4 bytes per pixel are enough.(which is an assumption on my side)

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Comment By: IOhannes m zmlnig (zmoelnig) Date: 2010-05-26 17:00

Message: unable to reproduce i tried with both Gem-0.92 (svn/branches/0.92) and svn/trunk an there ar no crashes.

please provide detailed information about your system (versions!) and a simple example patch that triggers the problem.

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You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=507079&aid=3007373...