Re: GtkGlArea render fps is different than monitor frame rate

Hi Ferenc, You should be able to take care of what you are after with GTK. The GdkFrameClock works very well for smooth animation. It will get rid of the jitter. Give it a try. You would just need to set up your code a little differently. It you are interested in a simple animation with a

Re: GtkGlArea render fps is different than monitor frame rate

I extracted a little project to be able to show what I am measuring: https://github.com/circum1/gtkgl-x11egl-compare The code is extracted-copied from several places, sorry about the quality... I hope it compiles on other boxes, too... It builds two binaries, egl-demo and gtk-demo -- one

Re: Use of lrint() in 'gdk-pixbuf/pixops/pixops.c'

> Currently, there are 2 rounding functions in the fall backs, round() > and rint(), with rint() having the better less biased IEEE > round-to-even behavior for the 0.5 case. Is known and it is a problem that the fallbacks for round and rint are only mostly working? For example, there is a

Re: Use of lrint() in 'gdk-pixbuf/pixops/pixops.c'

This issue relates to gdk-pixbuf, which does not have the C89 fallback code that GTK has. Personally, I'd be completely open to stop suppprting MSVC older than 2015 in newer releases of G* libraries and start requiring C99 features, like we did for GTK in the master branch. Nevertheless, I

Re: Use of lrint() in 'gdk-pixbuf/pixops/pixops.c'

On 05/02/2017, Yale Zhang wrote: > I suggest adding a lrintf() fallback to fallback-c89.c too. > > Currently, there are 2 rounding functions in the fall backs, round() > and rint(), with rint() having the better less biased IEEE > round-to-even behavior for the 0.5 case. > >

Re: Use of lrint() in 'gdk-pixbuf/pixops/pixops.c'

It should be in both the gdk and gtk directories for GTK+ 3.22. I don't know about GTK+2 On Sun, Feb 5, 2017 at 1:43 AM, John Emmas via gtk-devel-list wrote: > On 05/02/2017 03:59, Yale Zhang wrote: >> >> I suggest adding a lrintf() fallback to fallback-c89.c too. >> >>

Re: Use of lrint() in 'gdk-pixbuf/pixops/pixops.c'

On 05/02/2017 03:59, Yale Zhang wrote: I suggest adding a lrintf() fallback to fallback-c89.c too. Currently, there are 2 rounding functions in the fall backs, round() and rint() Where does fallback-c89.c come from? Some auto-generated file maybe? I can't seem to find it on my system :-(

Re: GtkGlArea render fps is different than monitor frame rate

On 02/05/2017 12:32 AM, Emmanuele Bassi wrote: > If you need to access things like DRM data and deeper timing > information, then I strongly suspect you should not be using GTK+ at > all, since it seem you're writing something like a game. > Are you saying GTK+ is not suitable when one needs