On 12/5/06, Carl Worth <[EMAIL PROTECTED]> wrote: > On Tue, 5 Dec 2006 14:21:56 -0800, "Daniel Amelang" wrote: > > 1.15.0: Drawn label 766 times > > 1.15.1: Drawn label 833 times > > > > Way to go Behdad! > > Yes. Well done! > > > And we can take down that nasty __muldf3 and __floatsidf in pangocairo > > (in the loop in draw_glyphs) with a little magic...The __adddf is a > > little tough, though, unless the crenderer->*_offset are both 0, I > > don't know how often that is true. > > And we still have some arithmetic to get rid of on the cairo side > right? I don't see any symbols in this latest report, but the last I > remember we still had some useless transformation through the common > identity matrix. > > I'd be willing to fix that, (should be simple enough). But Dan, didn't > you already make some attempts at that? And you just didn't like how > clean they were yet?
Yup, I still have that sitting around. I thought I'd finish it today (it's really, really close), but the lround bug came up. I'm thinking tomorrow now. > > > I can look at it once I finish the lround bugfix, integrate pdiff, > > finish cairo_rectangle optimizations...oh man. > > Heh. There's certainly a lot to do. I can do some pdiff work if you'd > like. Again, didn't you have an early version of this too? It'd be > great to have that to start with. Of all that, I think it's the pdiff work that I could use the help on. I spent most of my time just learning the concepts of it, and getting familiar with the code, so I don't have much code of my written yet. Just a system() call to pdiff from within cairo-test, and that's it. I was in the middle of determining if it would need the same image flattening code that the current image_diff uses. And, it needs a little extra code for the offsetting, like the current image_diff does. Like I mentioned before, the approach I wanted to use was to create a pdiff.c in cairo-test that encapsulated everything from the flattening to the offsetting and even the whole algorithm. Then just exposing a single function API. > And what's the cairo_rectangle optimization? This is the same as the transform optimizations you brought up above. It just that cairo_rectangle is a good entry point to expose it. Plus, Xan's torturer profiles show cairo_rectangle getting called quite frequently. I already have a nice perf test for this one. Will send the patch with the optimization code patches (hopefully tomorrow?). Dan _______________________________________________ Performance-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/performance-list
