Hi! Yeah, DirectFBs focus is on 2D accelleration. 3D Accelleration is provided by GL.
However, things are not that clear cut, as it may be possible to use 3D features of the graphics card even in 2D mode, eg: 1) The TextureTriangles function, which provides texturing of a pre-triangulated mesh. If accellerated, this function would use 3D features of the card. 2) Modern Graphics cards can use their Shader units to accellerate video processing (eg accellerated MPEG decoding, or at least accellerated DCT and ColourSpace conversions). While, AFAIK, there is currently no support for this in any DFB Drivers or Video Providers, I expect it will soon come in the future. Use of the shaders in this way is really also using a 3D feature in 2D mode... However these are details. In the broad picture, DFB is for 2D, and GL will provide 3D. Richie -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Gildas Bayard Gesendet: Donnerstag, 27. Oktober 2005 15:53 An: Denis Oliver Kropp; [email protected] Betreff: Re: [directfb-users] Acceleration Ok So my 82865G card has a i830 chipset that is supported but unaccelerated whereas cards based on the i810 chipset are supported -and- accelerated. So the df_dok program would be significantly affected by the "--noaccel" option on a i810 based card. Just to make sure I understood, the kind of acceleration we are talking about here is 2D acceleration right? It has nothing to deal with 3D acceleration (which is directFBGL business)? Gildas 2005/10/27, Denis Oliver Kropp <[EMAIL PROTECTED]>: > Quoting Gildas Bayard: > > Hello, > > > > I'm running the df_dok test program with and without acceleration > > (using -noaccel) and the results are quite the same in both runs I'm > > using linux fb driver for Intel 82865G and directFB has been > > compiled with intel support since I read: > > (*) DirectFB/Graphics: Intel 830/845G/852GM/855GM/865G 0.1 (Denis > > Oliver Kropp) > > > > Shouldn't I see a difference? > > The i830 driver does only provide a video overlay. But one could port > over the acceleration from the i810 driver or even make one driver out > of them. > > -- > 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 _______________________________________________ directfb-users mailing list [email protected] http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
