[RFC] RandR 1.3 properties

[Maarten Maathuis]

On Fri, Nov 7, 2008 at 5:18 PM, Matthias Hopf <mhopf at suse.de> wrote:
> On Oct 28, 08 14:37:30 -0700, Keith Packard wrote:
>> On Tue, 2008-10-28 at 19:51 +0100, Matthias Hopf wrote:
>> > - Apparently there are only 8, 16, and 32bit integers available as
>> >   property types. Having ATOMs and FLOATs would add semantics, which
>> >   could help in some cases. But if this implies some changes throughout
>> >   the system, I don't think this is helpful. If it's basically xrandr,
>> >   it would be easy.
>>
>> ATOMs are obviously supported, but FLOATs seem harder as they aren't
>> described in the core protocol anywhere.
>
> Thinking about that, adding floats was probably a bull idea. However,
> having semantics about ATOMs might be helpful (e.g. for xrandr or any
> general purpose property setting tool).
>
>> For the TV signalling type, I think we'll need more options; PAL has a
>> lot of variants that we'll want to expose. I'm also thinking we want to
>> expose a separate TV signalling property and leave the general property
>> as 'TV' or some such.
>
> Reasonable. Thinking about that.
> Types of PAL are typically PAL-B, -G, -H, -I, -M, -D, -N, -Nc
> Similar for NTSC and SECAM. Any additional features?
>
> Actually, single link/dual link, number of DisplayPort links, etc. could
> be set in the same property.

I'd make that a generic transition frequency and an the total number
of links, unless there are connections that don't scale linearly in
number of links.

>
> Adding this as SignalProperties.
>
>> > - Panning - Keith indicated pretty strongly that this should be part of
>> >   the protocol level, and not a property. Haven't dealt with that yet,
>> >   it's still in the diff.
>>
>> Yeah, we'll need stacks of code to manage this property, so it's not
>> just informational like most of the other properties.
>
> Agreed. Thinking about that. Find a protocol suggestion in the next
> diff.
>
> Matthias
>
> --
> Matthias Hopf <mhopf at suse.de>      __        __   __
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