Hello, I'm trying to use DirectFB 1.4 5 for Opera browser with a BCM7405 STB and noticed different blitting speeds from an source surface created with description.caps = DSCAPS_VIDEOONLY from the super interface's CreateSurface(): +) to a layer's primary surface created by layer->GetSurface(), no-software, and same pixel format.It takes about 0.1ms. +) to any surface created with description.caps = DSCAPS_VIDEOONLY from the super interface's CreateSurface(), no-software, and same pixel format. It takes about 1ms.
If I use "no-hardware" configuration, above blitting cases takes about 10ms. So, can I ask if DirectFB prioritize layers' primary surface over others surfaces when blitting, even when using hw accel? If not, could you suggest how to create a surface to achieve similar blitting performance as the layer's primary surface, please? I created the surfaces like this: sdsc.flags = DSDESC_CAPS | DSDESC_PIXELFORMAT | DSDESC_WIDTH | DSDESC_HEIGHT; sdsc.caps = DSCAPS_VIDEOONLY sdsc.pixelformat = DSPF_ARGB; sdsc.width = screen_width; sdsc.height = screen_height; DFBCHECK(dfb->CreateSurface( dfb, &sdsc, &blitsurf )); My box has two layers and I was thinking to use the non-primary layer's primary surface to feed to Opera but it's only 720x422 size while I need 720p. Another notice is that while blitting on the layer's primary surface is fast, flipping with DSFLIP_BLIT takes like 30 times slower. Is it expected or it depends on the application how it is using the surface? Thank you so much for your help, Ha Nguyen _______________________________________________ directfb-users mailing list directfb-users@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
