Segmentation Fault

This topic contains 4 replies, has 2 voices, and was last updated by  Tobias Hector 5 years, 8 months ago.

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  • #30750

    davecazz
    Member

    Just ran into an issue converting some of our texture atlases to a PVRTC4 pvr file.

    The command line just returns as “Segmentation Fault: 11”

    The error is sporadic it happens probably 70% of the time on 3 of our files. on most of our files it doesnt happen at all though, seems like there is some pixel configuration that is causing some instability.

    here is the commandline

    /Users/dave/Perforce/p4bonus_1666/CrackerAss/iPhone/PocketGodUranus/../pvrtextool/pvrtextoolcl/macos_x86/pvrtextool -fOGLPVRTC4 -iTextureAtlasPvr4.png -oTextureAtlasPvr4 -p -pvrtcbest -yflip 0

    I tried to pair down some of the options to see if it had anything to do with the pvrtc quality or y flip and it seems to happen regardless.

    here are two files it seems to especially have problems with.

    http://dev.boltcreative.com/pocketgod/TextureAtlasPvr2.png

    http://dev.boltcreative.com/pocketgod/TextureAtlasPvr4.png

    #35464

    davecazz
    Member

    I just confirmed that that the pvr4 image crashes not only in the mac command line, but also the gui for both mac and windows.

    #35465

    Hi davecazz,

    This is probably the same problem that we’ve been seeing in the pvrtc library here.

    If you could email devtech@imgtec.com I can send you an updated version of the tool.

    Thanks,

    Tobias

    #35466

    davecazz
    Member

    thanks, btw one thing that would be helpful, is to be able to export a decompressed image along with the pvr in the same command line statement.

    since I like to have a decompressed version so I can easily check for garbage, I end up running the pvrtextool twice for each image in my build process which performs the encoding twice and takes twice as much time.

    would be awesome to include -dFileName.png and have it just save off the decompressed copy when it creates the pvr file.

    #35467

    Hi Dave,

    Unfortunately I won’t be able to add this for our coming release, but I’ll look into adding it for a future release. This certainly makes sense as it would be useful for developers to be able to do on the fly error checking without having to call it twice, I imagine you’re not alone in doing this.

    I’ve submitted a feature request into our bug tracking system under BRN35895 – this is an internal tracker, but look for this BRN in our release notes.

    Thanks,

    Tobias

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