I tried your patch on DFB 1.1.1 it applied and compiled. I did not see significant improvement, in fact my blits slowed down by a factor of 2. I tried this on our arm9 (davinci using /dev/fb1 at 1280x720x24 (RGB)). The other platform was an mx31 at 800x480x16. The mx31 is uinsg a newer 4.x toolchain and the davinci is and older 3.4 toolchain.
Both used the fbdev device. Any thoughts why? Craig On Wednesday 18 March 2009 7:17:57 am Sven Neumann wrote: > Hi, > > I have applied your patch to my copy of DirectFB 1.2.7 (it applies > cleanly there) and compared the results of df_dok before and after. For > most operations the results are pretty much the same, but the > performance of "Blit" improved significantly: > > Blit 3.000 secs ( 24.029 MPixel/sec) > Blit 3.023 secs ( 34.686 MPixel/sec) > > This test was done on a PXA 300 using the generic software rasterizer: > > Processor : XScale-V3 based processor rev 1 (v5l) > BogoMIPS : 622.59 > Features : swp half fastmult edsp iwmmxt > CPU implementer : 0x69 > CPU architecture: 5TE > CPU variant : 0x0 > CPU part : 0x688 > CPU revision : 1 > Hardware : CM-X300 module > > Note that I haven't checked the results for correctness. > > > Sven > > > _______________________________________________ > directfb-dev mailing list > directfb-dev@directfb.org > http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
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