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 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
