[PATCH weston] xdg-shell: Make stable

[Jasper St. Pierre]

For "as fast as possible", can I show randomly generated pixels instead?
For a HiDPI display, it's as useful as running 1:1, centered, and it
certainly is a hell of a lot faster.

I don't care about "fast" if it can't make any guarantees about what the
user gets in the end. Games might try and set the "as fast as possible"
mode and end up with something completely unplayable, because we center
their 320x480 Space Cadet Pinball window right in the smack dab middle, and
the user loses.



On Tue, Aug 26, 2014 at 4:32 PM, Bill Spitzak <spitzak at gmail.com> wrote:

> On 08/26/2014 07:39 AM, Jason Ekstrand wrote:
>
>  - Preferred fullscreen scaling:  "I would like to be as large as
>> possible", "I would like to be pixel-perfect, even if that means smaller
>> and surrounded in black", etc.  TBH, I don't know how many clients would
>> actually like the later one.  Maybe if they have text they don't want
>> getting blurry?
>>
>
> I asked about that before and never got any response. It would seem to me
> that scaling by an integer is not only sharper but may be faster on some
> hardware.
>
> Conversely it seems doubtful any client really wants their fullscreen app
> to be scaled 1:1 and in a box in the middle, unless this is just the only
> way to get it fast. And this one is easily done by using a subwindow and it
> is hard to imagine any hardware acceleration that solution would bypass.
>
> So it seems like the options should be "as large as possible" and "as fast
> as possible". The fast one may do something like "the largest integer scale
> that fits on the screen". Or if scaling fast is impossible it will do 1:1
> centered.
>
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-- 
  Jasper
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