This enables us to do some neat tricks.
Simplifies management, and the hardware is limited to 4 descriptor sets and whatever bindings.
The CORE-MATH c423b9a3 commit made atanh to use a slight different muldd_acc and polydd (which uses muldd_acc internally) compared to previous version.
The CORE-MATH c423b9a3 commit made atanh to use a slight different muldd_acc, mulddd, and polydd (which uses muldd_acc internally) compare to asinh and acosh.
The CORE-MATH commit cd653cf7 fixes some issues for RNDZ (below).
This commit implements ROI (Region of Interest) encoding support for D3D12VA hardware encoders, enabling spatially-adaptive quality control for H.264, HEVC, and AV1 encoders. Query for `D3D12_VIDEO_ENCODER_RATE_CONTROL_FLAG_ENABLE_DELTA_QP` support during initialization to check whether the hardware support delta QP.