Thanks you for the information Dominik. I do not have a working DirectFB, I am currently looking into what needs to be developed - this is not an easy job since there is not a lot of information available.
I wonder if anyone has had success in connecting a dotmatrix display to DirectFB? Any help from experienced users would be good. Thanks,Liam ----- Original Message ---- From: Dominik Schröder <[email protected]> To: Liam Donaldson <[email protected]>; [email protected] Sent: Thu, 28 July, 2011 13:10:51 Subject: Re: [directfb-users] Creating gfxdriver Hm ok, eventually I`m wrong, but I think you will have to implement your own graphic functions (drawLine(), fillRectangle(), zoomArea() ) or something like this. These functions draw the "dots" on your display. And DirectFb uses these functions to send something to the display. The interface between your functions and DirectFB will be the gfxdriver. Do you have a working Directfb!? without hardware acceleration? But I think that it will be very difficult to connect a normal dot-matrix display to DirectFB... As I`m also new to DirectFB, I hope that some of the hardcore users correct me if I`m wrong... Regards, Dominik -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Liam Donaldson Gesendet: Donnerstag, 28. Juli 2011 13:55 An: Dominik Schröder; [email protected] Betreff: Re: [directfb-users] Creating gfxdriver Hello Dominik, Thanks for that link it looks very useful. It is strange that there is nothing on the DirectFB site| The LCD panel will be accessed through a parallel interface direct from the micro. So there is no intention to use the graphics core. Looking at some of the gfxdriver under DirectFB e.g. davinci_gxfdriver.c it open the /dev/fb0 device. I thought that /dev/fb0 would have to be opened. Again I have not seen clear instructions as to what will need to be coded. Thanks, Liam ----- Original Message ---- From: Dominik Schröder <[email protected]> To: Liam Donaldson <[email protected]>; [email protected] Sent: Thu, 28 July, 2011 12:07:34 Subject: Re: [directfb-users] Creating gfxdriver Hello Liam I also haven`t found very much about gfx drivers. Only this: http://elinux.org/images/6/6c/Elce2007_directfb_gfx.pdf Eventually it helps... Do you have a full documentation of the graphic core inside of your ARM processor? In my opinion, if you have a working gfx driver, Directfb won`t use /dev/fb0... Regards, Dominik -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Liam Donaldson Gesendet: Donnerstag, 28. Juli 2011 13:01 An: [email protected] Betreff: [directfb-users] Creating gfxdriver Hi, I have been tasked to look into getting DirectFB working with a small Dot Matrix display (along the lines of a Epson SED1560) running on a ARM micro. I have looked over some DirectFB documentation, but it is not exactly clear how I go about this. I think I have to create a GFX driver. However, there does not seem to be a clear set of instruction as to what functions need to be coded to allow DirectFb to work with it. Also what is the relationship with the GFX driver, framebuffer driver (/dev/fb0) and the Dot Matrix display. Do I need to create a new FrameBuffer driver for the Dot Matrix display? Any pointers or development guidelines would be appreciated. Thanks,Liam _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
