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  1. Qt
  2. QTBUG-84314

Fix QQuickPixmapCache to cache large images rendered by complex image plugins, and dispose via LRU algorithm

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      It seems to me that the cache in qquickpixmapcache.cpp is primarily concerned with caching small images that will become part of the texture atlas; whereas PDF pages rendered by the new pdf image plugin are not being cached, so if you jump around to different pages or scroll through a TableView or ListView that shows a lot of different pages, it spends too much time re-rendering pages. I want them to be cached to the extent that memory allows, and the cached images should be disposed of via the usual LRU algorithm.

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          Task - A task that needs to be done. QTBUG-81266 figure out whether QPixmapCache and QQuickPixmapCache can be unified

          • Not Evaluated - Not yet evaluated/prioritized
          • Reported
          relates to

          Task - A task that needs to be done. QTBUG-90627 Research a better PixmapCache <-> Image Provider interaction

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-114953 PdfMultiPageView: Very poor memory performance when zooming in/out of long documents

          • 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
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              srutledg Shawn Rutledge
              srutledg Shawn Rutledge
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