[ELDK] mpc5121 DIU alpha blending

Anatolij Gustschin agust at denx.de
Wed Nov 9 13:35:55 CET 2011

Hi Matteo,

On Thu, 03 Nov 2011 10:12:58 +0100
Matteo Facchinetti <matteo.facchinetti at sirius-es.it> wrote:

> Hi at all,
> I'm using freescale MPC5125 and I'm interest to develop an application 
> that use the hw Alpha Blending DIU capability.
> DIU video modules in mpc5125 is the same of the mpc5121 one.
> In ELDK_5.0 is there a project (such as Xorg or QTE...) that use hw 
> alpha blending in userspace?

There is no such project/example in ELDK-5.0 as far as I know. The
DIU frame buffer driver supports up to 5 planes. Maybe these planes
could be used as separate frame buffers for multiple QTE server
processes rendering data to the planes, the resulting blended image
could be configured for displaying. But all this requires extending
the drivers to support such configurations. I don't know whether
anyone have already done something similar before.

Best regards,

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de

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