[vdr] Some ideas of memorycalculation

[Torsten Kunkel <vdrml@tkunkel.de>]

Hi,

first, don't hurt me if I've mixed something up :)
A few days ago, two vdr-runners were eating and discussing about the
possibilities of vdr, and this idea was born:

The problem for high-res-osd is the ram of the dvb-card, this ram is
limited (I'm using an imaginary number of 12 "blocks" for better
visualisation in this post).
With this memory, you could make an display like:

####
####
####

but also

######
######

or even

###########

but there is never the possibility to get the osd greater than 3x4.

But what about splitting this limited memory?

+---------+
|#       #|
|# ## ## #|
|#       #|
+---------+
This are 10 Blocks, together less than the avayable memory, so the
other 2 blocks could be used for addressing where this blocks should
start.

The question for us is, if such an fragmentation is possible.
The advantage would be great, you could use small icons of
highres-areas and huge areas of for example 2bit-color.
With this mix, you could fill the complete tv-screen with icons, the
user would think, the osd has grown, but in real, the osd is just
splitted.

Does anyone know if this theory is possible?

	Torsten


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