gbm: Add buffer handling and visuals for fp16 formats

Define and set a new loader cap DRI_LOADER_CAP_FP16, indicating that gbm can
handle fp16 formats.

Signed-off-by: Kevin Strasser <kevin.strasser@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
5 files changed