Re: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

What might be more efficient is constructing 2 bitmaps, one vertical and one horizontal, at the height/width of the screen, caching them, and rendering them at different offsets to achieve the rotating effect. They should not occupy much memory because they would be only a couple of pixels wide or

RE: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

Hi Sylvain, > On October 3, 2015 at 2:48 AM Sylvain R wrote: > 1. I am not sure if the method itself is very slow. Using a for loop around > the call in the following code > https://github.com/ereslibre/x11/blob/master/xrender/xrhello.c I am able to > basically time a call

Re: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

Sylvain R wrote: > Any comments? > Disabling 'Use anti-aliasing' in Tools->Options->(generic) View should use the fast path you described, without the need to modify the code. HTH, -- Thorsten signature.asc Description: Digital signature ___

RE: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

ously I'd love to get a proper solution in the Libreoffice trunk. Any comments? S > Date: Wed, 30 Sep 2015 08:49:22 -0400 > From: libreoff...@kohei.us > To: ross_...@hotmail.com; libreoffice@lists.freedesktop.org > Subject: Re: [Calc] Bad rendering performance of &quo

Re: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

Hi I've found the Linux 'perf stat' tool to be an effective way to give you a nice callgraph and breakdown of where the CPU is spending it's time without taking too long to perform the profiling. Some nice tutorials here: http://www.brendangregg.com/perf.html Regards, Noel.

Re: [Calc] Bad rendering performance of "selected copy" snake/circulation animation

> On September 29, 2015 at 12:25 AM Sylvain R wrote: > > > Hi, > Sorry in advance if this is the wrong mailing list, I am basically trying to > find a tiny bit of help to fix a rendering problem I have and hopefully submit > a patch for it, or at least discuss the

[Calc] Bad rendering performance of "selected copy" snake/circulation animation

Hi, Sorry in advance if this is the wrong mailing list, I am basically trying to find a tiny bit of help to fix a rendering problem I have and hopefully submit a patch for it, or at least discuss the problem. I am having some serious rendering performance problems when I perform a copy of