Hi Prageeth,
that will be difficult..
If you do not specify the pixelformat, DirectFB takes a default, which
depends on graphics capabilities and need for alpha channel. This
depends on your system, and can change from version to version if your
graphic driver is maturing. You can of course always override with
pixelformat= .
Greets
Niels
Prageeth wrote:
Hi All,
It was found that setting the option pixelformat=RGB555 for the newer
version will give a clear image, though such an option was not needed
on the legacy DFB. Hope to get some explanation on the difference in
behavior..
Thanks,
Prageeth
*From:* [email protected]
[mailto:[email protected]] *On Behalf Of *Prageeth
*Sent:* Monday, March 01, 2010 6:58 PM
*To:* [email protected]
*Subject:* [directfb-users] Same PNG using DFB0.9.24 and DFB1.2.8
Hi All,
We are in the process of upgrading a legacy DirectFB-0.9.24 system to
DirectFB-1.2.8, the later being built using buildroot-2009.05.
However, the PNG test image looks better on the legacy DFB than on the
newer version!
On using IDirectFBSurface::Dump(), the destination surface for
RenderTo(), and the final window surface to which Blit() is done, are
both found to be same using legacy and new DFB. However, the primary
layer’s surface seems to differ as in attached ppm files. Moreover,
the legacy version dumps a pgm file also.
The DFB configuration of both systems were found to be same as
attached. There is no hardware acceleration involved. Frame buffer
settings given by fbset were also found to be same. However, the older
2.6.14.2 kernel had to be retained so that various device drivers
could be reused.
Hope using an older kernel need not be an issue. Any suggestions or
debugging tips would be of great help.
Thanks,
Prageeth
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