[Mesa-dev] 10-bit Mesa/Gallium support

[Michel Dänzer]

On 2017-11-23 07:31 PM, Mario Kleiner wrote:> > 3. In principle the
clean solution for nouveau would be to upgrade the> ddx to drmAddFB2
ioctl, and use xbgr2101010 scanout to support> everything back to nv50+,
but everything we have in X or Wayland is> meant for xrgb2101010 not
xbgr2101010. And we run into ambiguities of> what, e.g., a depth 30
pixmap means in some extensions like> glx_texture_form_pixmap.
A pixmap itself never has a format per se, it's just a container for an
n-bit integer value per pixel (where n is the pixmap depth). A
compositor using GLX_EXT_texture_from_pixmap has to determine the format
from the corresponding window's visual.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer