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  1. Qt
  2. QTBUG-53937

AnimatedSprite source change causes infinite loop in QQuickSpriteEngine::assembledImage()

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Details

    • b61c774ce58d15bfc26a2a75b55e3f5eefbcdcc2

    Description

      Steps to reproduce the issue:

      • Extract the attached file (animatedSpriteInfiniteLoop.zip) and run it with "qmlscene animatedSpriteInfiniteLoop.qml"
      • Click on it.

      Outcome:
      The process enters into an infinited loop inside QQuickSpriteEngine::assembledImage(). More speficically inside "while (framesLeft > 0)

      {...}

      " as framesLeft is never decremented because "copied/frameWidth" in the expression "framesLeft -= copied/frameWidth;" always resolves to zero because copied < frameWidth.

      Comments:
      Got a simple fix in the works.

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        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-28844 Memory leak when using AnimatedImage

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-24869 Use of MNG with a LOOP block causes memory leak in AnimatedImage QML element

          • P4: Low - Would be nice to fix, but it's not very important.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-55808 AnimatedImage Memory occupancy

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-53937
          # Subject Branch Project Status CR V
          161896,4 QQuickSpriteEngine: avoid entering infinite loop in assembledImage() 5.6 qt/qtdeclarative Status: MERGED +2 0

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              dandrader Daniel d'Andrada
              dandrader Daniel d'Andrada
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              Dates

                Created:
                Updated:
                Resolved:

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