Anders Brander ([EMAIL PROTECTED]) wrote: > Is the mouse cursor a problem with many themes? I'm somewhat reluctant > fixing corner cases "just" because some cursor set has a big > crosshair.
Not many themes bring thin shaped cursors as these ones tend to be not visible on users' screens that are bigger and bigger these days. > > > - luminance curve for int/float/sse/3dnow (at last) > > WUHU! Rock. Hehe > Where does these luma coefficients come from? - and why are they better > than RLUM and friends in color.h? These are the luma coefficients found in the XYZ colorspace definition. I found these better when looking at the screen. With RLUM... i found the image changing a bit in chroma when really going strong/weak on the curve. I also tried the YUV (NTSC) standard... I'm not opposed to change these settings, it's just i found them a bit better fitted to real luma to my eyes. > > Some questions i have so far: > > - on my amd64 the 3dnow code as of SVN just crashes... is this known ? > > Oh no. How about release 0.6? Crashes too. > > - 3dnow code uses pf2id which truncates floating values, my patch > > adds 0.5 before truncating. This acheives proper rounding that is > > used in float/sse. Were you aware of this ? > > Not at all ;) Now you are :-) > > Some caveats in the luminance curve: > > - int/float/sse work perfectly, however the 3dnow version seems to > > be buggy at the moment, the image colors are not modified the way > > they should be, even w/o the curve applied... i've spent too much > > time reading the code again and again, the 0.5 bias doesn't explain > > the results i can see. Try #undef USE_3D_NOW_LUMINANCE_CURVE in > > rs-color-trnsformation.c to see that the curve code isn't really > > responsible for that yellowish color... > > I have an idea; We scrap the 3dnow-code? Hmm thoug it would be very easy, i think that old systems deserve a bit of respect :-) i'm sure i can find what's going on. For now i'd say that if you're interested in the patch just commit it, i'll keep working on the 3dnow code and if i really don't find where the problem lies... i'll ask for removal. Do you have an idea how many people use rawstudio in 3dnow mode only ? Starting with athlons, sse is available to amd users too. -- Edouard Gomez _______________________________________________ Rawstudio-dev mailing list [email protected] http://rawstudio.org/cgi-bin/mailman/listinfo/rawstudio-dev
