On Tue, 4 Jul 2006 00:47:52 GMT "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> babbled:
> > > > Let's agree on one thing: The gfx operations, unless > > > otherwise explicitly stated, will be done in premul argb color > > > space, or a linear equivalent of it.. > > > > agreed - with possible FUTURE ability to use more esoteric > > colorspaces like YUV (though frankly yuv is handled most sanley > > by a convert to yuv first - BUT you can actually get speedups > > combining the scale and convert at the same time) > > Ok good, at least we're getting somewhere :) > > > > Ok, fine.. and actually premul ayuv would be ok too since > > > when decoded yuv is linearly related to rgb (hsv eg. is not). > > > There's already such an interface to set imported data from yuv, > > > and moving the 'conversion' to rgb down to the engines is fine > > > as they may simply be able to deal with it directly, etc.. > > > That's all good, and an interface for importing yuv to image data > > > is already there, you can extend it to cover any premul ayuv format > > > type with no problem. > > > > sure - and i would suggest we expand it to also import non-premul > > ARGB - thats basically all i was really suggesting. :) > > That would be the best way to do it, yeah :) > > > > > > > Let's assume that edje has been modified to pass premul > > > colors/data to evas, and eet saves premul data, and that evas > > > provides premul/non-premul conversion api functions for colors > > > data.. > > > > > > Just where exactly in e17 would there be even minor pain > > > caused by evas being premul only? > > > > every edje design (.edc's) that specifies a color for text or > > solids, clips etc. any app that sets an object color itself. > > there are 74 calls to evas_object_color_set in e17. e17's creation > > of netwm icons would need to do a premul step. 54 in edje. more in > > ewl, etk etc. etc. now with edje - do we force the .edc's to > > specify colors in premul? if so there are (evil) 666 instances of > > colors in e17's default theme - or do we have edje_cc convert to > > premul on encode - or do we have edje turn into premul runtime?... > > how far do you go? :) > > Ok I looked at the e17 ones. Nearly all of them are of two > kinds: either setting a color that's already premul (usually opaque > white or transp black), or for defining some smart-class' color-set > callback. > Neither case needs anything done (color-set smart callbacks > would expect premul inputs). That leaves about 6 left I think. > > Anyway... I think it might be best to let the edc format > stay as it is (non-premul colors), and have edje do the conversion, > not edje_cc. If desired, a later edje can have other types and/or > versions of 'design-formats', like edc, and one can do whatever.. > There are possibilities for things that are very interesting with > premul colors, and having evas handle premul colors, as given, would > allow for that. agreed - now i have had time to mull. break the color_set - make it premul. we have anon-premul-import for convenience, and we modify all the code we can 0 edje converts at runtime before color_set when using config valued in the .edj. ;) -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) [EMAIL PROTECTED] 裸好多 Tokyo, Japan (東京 日本) ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
