On Mon, Aug 24, 2009 at 1:21 PM, Alan W. Irwin<ir...@beluga.phys.uvic.ca> wrote: > On 2009-08-24 00:33-0500 Hezekiah M. Carty wrote: >> On Mon, Aug 24, 2009 at 12:23 AM, Alan W. >> Irwin<ir...@beluga.phys.uvic.ca> wrote: >>> On 2009-08-23 20:47-0400 Hazen Babcock wrote: >>>> We have 2-3 weeks until our tentative early September release date. I >>>> believe that everything that we wanted in 5.9.5 is in? Is there anything >>>> outstanding besides the tweaks to the color palette handling? >>> >>> Here are some comments on the present development issues I am aware of: >> ... >>> >>> * Hez mentioned the off-screen rendering patch in response to your post >>> but >>> didn't give an estimate of how long that would take. If that turns out >>> to be >>> long, I don't think we should delay the release for it. >> >> I should have been clearer about this in my previous response. I am >> mainly waiting for comments on the patch and the changes it introduces >> at this point. I would be happy to apply it now if it gets the ok >> from multiple other developers. It changes the behavior of xcairo >> though, so I don't want to commit the change to trunk without >> something of a consensus. >> >> Simply, I am happy with the patch as it is. If others are as well >> then I am ready to commit it. If not, then it can wait until >> post-release. > > Hez, to quote from your previous post about this patch: > > "The compiled PLplot examples illustrate the speedup (particularly > examples 11, 16 and 20) and flicker-free rendering (example 17) quite > nicely. The shortcoming of not seeing the plot updates until a flush > becomes most noticeable when using the xcairo driver interactively, > say from an interactive Octave, OCaml or Python session. This lack of > interactive updates could be worked around with threading similar to > the pthread use in the xwin driver. The xwin threading code is quite > lengthy and complicated though, so this would likely be a fairly > significant task." > > I use -dev qtwidget (which is comparable in speed to -dev xwin for most > examples) so I don't have strong feelings about -dev xcairo. However, as a > general comment, that interactive session drawback doesn't sound too bad a > price to pay for the other advances in speed especially when there is a > future possibility with threads to take care of the interactive session > drawback. > > Hazen is the one who wrote most of cairo.c so if this patch is okay with > him, it is okay with me.
I agree with your comments here, Alan. I certainly feel that the speed increase outweighs the lack of pre-flush automatic updates. > Please go ahead and apply Hez's patch to your local source tree, and let us > know whether you like how that patch changes the -dev xcairo user > experience. I assume Hez will commit the patch or hold off until > post-release based mostly on your evaluation since I don't think anybody > else has tried his patch yet. Yes, if Hazen is ok with the changes the patch implements then I will apply it. Otherwise it will most likely wait until post-5.9.5. Hez -- Hezekiah M. Carty Graduate Research Assistant University of Maryland Department of Atmospheric and Oceanic Science ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
