Hello Craig,
Craig Matsuura wrote:
I am also curious about the progress. I am also interested in speeding
up blitting in directfb. I am currently on directfb 1.2, I am using the
fbdev not the mem mapping as I need it for an app that runs on the vid0
in rgb24 bit mode.
The latest driver can be found in our Git repository
(file drivers/misc/dav-dma.c)
http://git.boundarydevices.com/git-repos?p=linux-bd
I can not run on the osd0 as resolutions higher than 640x480 on the OSD
will cause video tearing. I run the vid0 at 1280x720 (720p).
Using DMA for blts will help with tearing, but you'll likely also need to sync
with the vertical refresh interrupt.
I have contemplated using the /dev/mem but was unsure if it was really
worth the effort. I am also using the DSP with Codec Engine 2 from TI so
I can not use the c64 acceleration.
The "blt" operations in dav-dma should inter-operate with CE2 just fine
without the acceleration code in DFB.
On Wednesday 02 January 2008 8:36:20 pm Sriram Neelakandan wrote:
> Hi Eric,
>
> I stumbled on this posting recently..
>
http://mail.directfb.org/pipermail/directfb-users/2007-November/000123.html
>
> I am looking to use the driver ..
> Do u have any latest updates ?
> Also it will be of great help, if you could post a sample user space
> program, that demos the usage of your driver.
Sorry for that, Sriram. I haven't had time to keep up with the Direct-FB
mailing list and didn't notice your post.
I also haven't touched base with the DFB team to know whether they've
been keeping the DMA blt support up-to-date.
When integrated with Direct-FB, the standard DFB demos will work (only faster).
Eric
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