[igt-dev] [PATCH i-g-t 3/5] lib/rendercopy: Add fp16 support for gen4+

[Chris Wilson]

Quoting Ville Syrjala (2019-04-18 20:40:41)
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Allow copying between fp16 surfaces. We'll use the FLOAT
> surface format since that's all the display supports currently.
> Hopefully the hardware gives us a 1:1 copy, at least if
> the input doesn't contain crazy infs/nans etc. We could
> choose UNORM instead but that won't work for eventually
> exposing fp16+ccs. Although we do need to replace the
> simple bpp value with a more specific format type to get
> 10bpc+ccs working as well.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Mesa has it listed as always available as a render target,
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris