Claudio Ciccani wrote: > Some weeks ago I announced to the mailing list that I was working on a > DirectFB based OpenVG implementation (i.e. DirectVG). > Well, now it's time to prove that it was not a bullshit and that I made some > progresses in the meanwhile.
Yep ;) > Below is a screenshot of the well known tiger sample rendered by DirectVG: > http://img160.imagevenue.com/img.php?image=63785_DirectVG3_Tiger_122_898lo.jpg It looks pretty good already! Where's the code :) > As you can see, there is still some work to do on the strokes > (stroke styles are completely missing and so is line scaling), but the hard > part is done. > > Regarding the performance, well... at this stage it simply sucks! > > Testing Hardware: ATI Radeon 9250 > Testing Resolution: 612x622 > Runtime Speed: ~ 11 fps Not too bad. CPU bottleneck still, I guess... How many thousand(?) calls to the IDirectFBSurface API is this doing? Or do you use dfb_state_*() and dfb_gfxcard_*() which I am at the moment in the public Water version? I'm thinking about a more open intermediate solution that might keep a few convenience functions for blitting and filling and should replace all dfb_gfxcard_fill/draw/state*() cruft, keeping the dfb_state_*() functions, but allowing acquisition for more than a few driver calls. For example changing color etc. does not need a complete release/acquire including all locks. Just call the driver's SetState() and Fill/Draw/Blit() as they are needed, during one acquisition, until hitting a software fallback at least. Please check your system load and/or test with single application core, which does not have the system call impact per (macro) graphics operation. BTW, Fusion could eliminate most of the system call overhead like futexes do. -- Best regards, Denis Oliver Kropp .------------------------------------------. | DirectFB - Hardware accelerated graphics | | http://www.directfb.org/ | "------------------------------------------" _______________________________________________ directfb-dev mailing list directfb-dev@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
