Mesa (master): pan/bi: Support 16-bit load_interpolated_input

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Module: Mesa
Branch: master
Commit: cf2d575d6320c96c303bc5d399152dc2e3108850
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=cf2d575d6320c96c303bc5d399152dc2e3108850

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Thu Dec 31 18:17:50 2020 -0500

pan/bi: Support 16-bit load_interpolated_input

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10392>

---

 src/panfrost/bifrost/bifrost_compile.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c
index 091b3d4674d..bc8e998d4d6 100644
--- a/src/panfrost/bifrost/bifrost_compile.c
+++ b/src/panfrost/bifrost/bifrost_compile.c
@@ -229,6 +229,12 @@ bi_emit_load_vary(bi_builder *b, nir_intrinsic_instr *instr)
 
                 sample = bi_interp_for_intrinsic(parent->intrinsic);
                 src0 = bi_varying_src0_for_barycentric(b, parent);
+
+                unsigned sz = nir_dest_bit_size(instr->dest);
+                assert(sz == 16 || sz == 32);
+
+                regfmt = (sz == 16) ? BI_REGISTER_FORMAT_F16
+                        : BI_REGISTER_FORMAT_F32;
         } else {
                 regfmt = bi_reg_fmt_for_nir(nir_intrinsic_dest_type(instr));
         }