From cd0a01522f22646f840cfc5e7557e9f8f84a1e5e Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Date: Sun, 22 Oct 2023 18:35:38 -0400
Subject: [PATCH] ttn: Set sample shading for sample ID reads

Fixes on asahi arb_stencil_texturing-blit_corrupts_state -auto
GL_TEXTURE_2D_MULTISAMPLE.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26011>
---
 src/gallium/auxiliary/nir/tgsi_to_nir.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/auxiliary/nir/tgsi_to_nir.c b/src/gallium/auxiliary/nir/tgsi_to_nir.c
index 17c5d372abe..bc53d47069b 100644
--- a/src/gallium/auxiliary/nir/tgsi_to_nir.c
+++ b/src/gallium/auxiliary/nir/tgsi_to_nir.c
@@ -630,6 +630,7 @@ ttn_src_for_file_and_index(struct ttn_compile *c, unsigned file, unsigned index,
          break;
       case TGSI_SEMANTIC_SAMPLEID:
          load = nir_load_sample_id(b);
+         b->shader->info.fs.uses_sample_shading = true;
          break;
       default:
          unreachable("bad system value");