[offtopic] Re: Proprosed break in libGL / DRI driver ABI

Adam Jackson ajax at nwnk.net
Thu Apr 7 07:40:55 PDT 2005


On Wednesday 06 April 2005 19:35, Roland Mainz wrote:
> Brian Paul wrote:
> > As is, you can't exceed 4K x 4K resolution without increasing
> > MAX_WIDTH/HEIGHT.  Your glViewport call will be clamped to those
> > limits if you specify larger.
>
> Which leads to some unfortunate problems for printing, think about a
> ISO-A4 page at 600DPI where a GL window covering the whole paper surface
> is beyond the current 4Kx4K limit (that's the reason why the print demo
> in "glxgears" simply shrinks width/height obtained from
> |XpGetPageDimensions()| (AFAIK to 1/2 or 1/3) and then centers the
> window on the page before starting to print).

This would suggest to me one or more of the following:

- xprint should be investigating tiled rendering solutions, possibly based on
  the glxproxy code from Xdmx
- GL is an architecturally poor match for printing

- ajax
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