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79fa3eba11
This implements a replacement for the previous implementation of nir_intrinsic_load_barycentric_at_sample that relied on the Pixel Interpolator shared function, since it's going to be removed from the hardware from Xe2 onwards. This implementation simply looks up the X/Y offsets of each sample index on the table provided in the PS thread payload by using indirect addressing, then does the actual interpolation by recursing into emit_pixel_interpolater_alu_at_offset() introduced in the previous commit. Note that even though this is only immediately useful on Xe2+ platforms there's no reason why it shouldn't work on earlier platforms, as long as we have the sample X/Y offsets available in the thread payload. Reviewed-by: Caio Oliveira <caio.oliveira@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29847> |
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