Re: Reg. Cairo Performance with DirectFB bacend
Vicky Tux <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <CAJosQWNcXtP+udLTfJ=pePbe1JNFvk11Mo4yXnw+KVus+ZS9Eg@mail.gmail.com> |
Hi All, One more thing I would like to add is, it is not just about drawing semi transparent rectangles, actually webkit uses *cairo_push_group *& then drawing on the temporary surface then again paints to actual surface *with cairo_paint_with_alpha.* * * Can any cairo-directfb porting guys help me to accelerate this..? Regards, Arun > > Hi folks, > > > > I'm facing low performance issue while using cairo with directfb as a > > backend. Actual problem was while using cairo to draw bunch of > > transparent rectangles, it takes very much time, but no issues with > > opaque rectangles. > > > > While analysing the issue I found that semi transparent rectangles > > were not drawn directly to the surface, instead it was drawn by > > creating another backend surface & drawn opaquely, but the > > transparency was applied by creating a mask. > > > > So why this is happening..? > > > > Please help to resolve. > > > > Note: > > ------- > > > > I'm testing things with webkit/cairo/directfb > > > > Thanks & Regards, > > Arun. > > > > > > -- > > cairo mailing list > > [email protected] > > http://lists.cairographics.org/mailman/listinfo/cairo > It's the same for me.. Every object is drawn inside a rectangle. How can > I resolve this problem?? It's look very bad > -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo