Re: resolution independent px

On Fri, Jan 16, 2015 at 12:14:19PM -0300, Jorge Arellano Cid wrote:
> On Fri, Jan 16, 2015 at 08:50:13AM +0100, Johannes Hofmann wrote:
> > Hi,
> > 
> > attached is a patch that would enable resolution independent
> > handling of px as described in [1].
> > It would result in roughly equally sized images on high and low
> > resolution devices at the cost of a higher overhead for additional
> > image scaling.
> 
>   A long time ago, image scaling was relatively low overhead,
> but since dillo got correct gamma correction, it became much
> more expensive.
> 
>   I remember testing this and the difference was noticeable.
> It was left anyway because the amount of scaled images
> in the average web page is low.
> 
> 
> > Is there a need for something like this?
> 
>   I don't know...
> 
> > Should it be enabled via config option or should we do it
> > automatically if we detect a DPI value that differs a lot from
> > the standard value?
> 
>   For me, it is hard to say without knowing the main use of it.
> What I do know is that our scaling is CPU intensive, so I tend
> to have it off unless necessary.

It's only useful if you have a high resolution device where DPI is
much higher than about 70. In that case images will be rendered
very small.

I currently don't have such a device, so personally I don't have
any need for this now. I just wanted to get feedback from dillo-dev
in case someone already ran into this issue.

Cheers,
Johannes