Summary: | [Qt] QtWebKit should consider using QImageReader::setQuality(49) | ||
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Product: | WebKit | Reporter: | Holger Freyther <zecke> |
Component: | Images | Assignee: | Nobody <webkit-unassigned> |
Status: | RESOLVED FIXED | ||
Severity: | Normal | CC: | laszlo.gombos, yael |
Priority: | P2 | Keywords: | Qt |
Version: | 528+ (Nightly build) | ||
Hardware: | PC | ||
OS: | OS X 10.5 |
Description
Holger Freyther
2009-10-23 23:35:07 PDT
(In reply to comment #0) > ImageDecoderQt.cpp should use QImageReader::setQuality(49) to use JDCT_IFAST in > the Qt JPEG Image Decoder. This change can give a 5% speedup on the > image_cycling reduction. > > JDCT_IFAST is supposingly not generating as good results as the other integer > based method but it is not certain how bad these are. The Palm developers have > opted to use this for the WebOS. Sorry I did not get back to you in that. I was OOO until today. Will try to arrange testing during next week. We collected a few JPG images and tested on N97. The colors of the images looked better after we applied this change. |