st/glx: Add awareness for multisample pixel formats to st/glx-xlib.
In preparation for enabling MSAA in OpenSWR, the state trackers need to
be aware of multisample pixel formats for software renderers. This patch
allows glx-xlib to query the renderer for support of pixel
formats with multisample, and create multisample resources.
This change is benign to softpipe and llvmpipe, as is_format_supported
returns FALSE for any sample_count > 1. OpenSWR does the same at the
moment, but that will change soon.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
projects / mesa.git / commit