Quoting Mark Adams: > I'm having no luck trying to use the DVD subpicture layer (unichrome > driver). I have confirmed that the layer surface has a sensible > palette and that its pixels are being set to non-transparent values. > However, I don't see anything on the screen (just the video and > graphics layers). > > Any ideas? Is there any example code around that uses this layer (I > haven't been able to find any)?
Try "df_dok --dfb:primary-layer=2" or other examples. > I'm using the unichrome driver's video underlay mode but have tried a > number of the DirectFB test apps with and without this option: I just > get a black screen when using the subpicture layer. > > Any help appreciated. > > I'm also interested to know if this layer scales with the video plane > or not (for my purposes I'd rather it didn't). Layers always scale on their own. > IDirectFBDisplayLayer spic_layer = sm_dfb.GetDisplayLayer(2); > spic_layer.SetCooperativeLevel(DLSCL_EXCLUSIVE); > spic_layer.SetOpacity(255); > IDirectFBSurface spic_surface = spic_layer.GetSurface(); > > void *data; > int pitch; > spic_surface.Lock(DSLF_WRITE, &data, &pitch); > for (int y=100; y<200; y++) > for (int x=100; x<200; x++) > *(reinterpret_cast<char *>(data) + pitch * y + x) = 0x88; > spic_surface.Unlock(); If it's not single buffered, you're missing a Flip(). But as you didn't set a layer configuration, you should get the default configuration with single buffer mode. -- Best regards, Denis Oliver Kropp .------------------------------------------. | DirectFB - Hardware accelerated graphics | | http://www.directfb.org/ | "------------------------------------------" _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
