Description: Rotating a PNG image is quite slow (and CPU intensive). Takes around 5 seconds. Problems have intensified since LibO 4.2.0.4, because jpg images are converted to png before rotating. Steps to Reproduce: 1.Open attached file 2.Right click the image: Rotate -> Rotate 180 degrees Actual Results: Rotating takes around 5 seconds Expected Results: Rotating should be instantaneous Reproducible: Always User Profile Reset: No Additional Info: Version: 5.4.0.0.alpha0+ Build ID: d0288a482a3dc0f50f535565e4c66a95bb140942 CPU Threads: 4; OS Version: Windows 6.19; UI Render: default; TinderBox: Win-x86@42, Branch:master, Time: 2016-12-26_23:25:18 Locale: nl-NL (nl_NL); Calc: CL and in Versie: 4.1.0.4 Build ID: 89ea49ddacd9aa532507cbf852f2bb22b1ace28 User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Created attachment 130030 [details] Example file containing a PNG
Created attachment 130031 [details] Example file containing a JPG
Hi Telesto, I reproduce this slow rotation (90°) with LO 5.4.0.0.alpha0+ Build ID: 5903235d57acb13d9d5286d23b443a01aeab9a3c CPU Threads: 2; OS Version: Windows 6.1; UI Render: default; TinderBox: Win-x86@42, Branch:master, Time: 2016-12-19_00:08:35 Locale: fr-FR (fr_FR); Calc: CL Same behaviour with: LO 4.2.0.3 Build ID: c63c03decdf780d8fb80823950665b782ec9ecd0 I found your wish into LO 4.2.0.0.beta1 Build ID: f4ca7b35f580827ad2c69ea6d29f7c9b48ebbac7 where that was immediate. OS: Windows 7 Home
Image rotation was introduced by commit df155415d8f46d884ba18e370e8028d020ba6f3b and going back to that point it already takes ~5 seconds, so this is not a regression at all.
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No repro Version: 6.1.0.0.alpha0+ Build ID: dd4f1b1bd31daf080dc0420524712dc244e539b5 CPU threads: 4; OS: Windows 6.3; UI render: default; TinderBox: Win-x86@42, Branch:master, Time: 2018-03-20_23:26:38 Locale: nl-NL (nl_NL); Calc: group