I have updated the code. There was the "24 bits" missing after "3byte-array uint32_t deref", so the random top byte used to mix in with the transparency via "bitor".
08.06.2019, 15:03, "Alexander Ilin" <ajs...@yandex.ru>: > Unfortunately, the posted code doesn't work as expected: the text labels > randomly have colored background. I'm looking for a reason. > > 08.06.2019, 14:04, "Alexander Ilin" <ajs...@yandex.ru>: >> Hello, Norio, and thank you for the benchmark code! >> >> I was able to use it, and here are results from my tests. I took the >> typical output values. >> >> Your code from commit a16eb2f6: >> Opaque background: 146 ms >> Transparent background: 1083 ms >> >> My code from commit 26516f97: >> Opaque background: 142 ms >> Transparent background: 1800 ms >> >> Then I incorporated the optimizations suggested by Jonh Benediktsson, and >> here are the new results from commit fa57d052: >> Opaque background: 143 ms >> Transparent background: 150 ms >> >> In general, the Transparent test runs about 6-7 ms longer than the Opaque >> test, i.e. about 4.6% slower, which is a much better performance >> characteristic compared to the previous approaches. >> >> The updated code is posted here: >> https://github.com/AlexIljin/factor/tree/win-transparent-text-background >> >> 08.06.2019, 10:11, "KUSUMOTO Norio" <kusum...@na.rim.or.jp>: >>> Ouch, an e-mail wasn't sent to the mailing list because I sent it direct. >>> I rewrite the wrong part and send it again. >>> >>> On 2019/06/05 22:24, John Benediktsson wrote: >>>> Or clear the cache each time, so you don’t have to be lower level >>>> code... >>>>> On Jun 5, 2019, at 4:24 AM, Alexander Ilin <ajs...@yandex.ru>wrote: I >>>>> think the pairs of {font, string} are cached and only drawn once by the >>>>> GUI framework. I think you need to call the drawing code more directly to >>>>> get real performance data. >>> >>> Thank you, Alexander and John. >>> I decided to measure only internal processing time. >> >> ---=====--- >> Александр >> >> _______________________________________________ >> Factor-talk mailing list >> Factor-talk@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/factor-talk > > ---=====--- > Александр > > _______________________________________________ > Factor-talk mailing list > Factor-talk@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/factor-talk ---=====--- Александр _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
