d3d12: Do not convert new d3d12_resource objects to their DXGI typeless formats for video usage
When the d3d12 gallium driver creates a d3d12_resource
, it converts its DXGI format to the typeless variant by default, but those typeless variants are not supported as Video Processor input/output as specified here in the docs.
Apps with VA workloads using VASurface
objects with format VA_FOURCC_RGBA
and similar must be created with DXGI_..._UNORM
types, honoring the PIPE_..._UNORM
format chosen by the VA frontend state tracker function VaFourccToPipeFormat
.
To address this, PIPE_BIND_CUSTOM
is used by the d3d12 video buffer when creating video resources to hint about this so the PIPE_..._UNORM
input format is honored.