Mesa (staging/21.3): zink: inject LOD for sampler version of OpImageQuerySize

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Module: Mesa
Branch: staging/21.3
Commit: 5b6ed5880359d1e87fc82727e7fc5de2beae62aa
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5b6ed5880359d1e87fc82727e7fc5de2beae62aa

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Thu Oct 28 10:57:01 2021 -0400

zink: inject LOD for sampler version of OpImageQuerySize

this is required by spec

cc: mesa-stable

Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13585>
(cherry picked from commit e8f18385e05db6d14ae6807a529c5d69c38d6091)

---

 .pick_status.json                                    | 2 +-
 src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/.pick_status.json b/.pick_status.json
index fea261458d0..0a60ead40ab 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -265,7 +265,7 @@
         "description": "zink: inject LOD for sampler version of OpImageQuerySize",
         "nominated": true,
         "nomination_type": 0,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": null
     },
diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index 68e0db3bf81..78e4f5334cd 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -3224,6 +3224,14 @@ emit_tex(struct ntv_context *ctx, nir_tex_instr *tex)
       lod = emit_float_const(ctx, 32, 0.0);
    if (tex->op == nir_texop_txs) {
       SpvId image = spirv_builder_emit_image(&ctx->builder, image_type, load);
+      /* Additionally, if its Dim is 1D, 2D, 3D, or Cube,
+       * it must also have either an MS of 1 or a Sampled of 0 or 2.
+       * - OpImageQuerySize specification
+       *
+       * all spirv samplers use these types
+       */
+      if (tex->sampler_dim != GLSL_SAMPLER_DIM_MS && !lod)
+         lod = emit_uint_const(ctx, 32, 0);
       SpvId result = spirv_builder_emit_image_query_size(&ctx->builder,
                                                          dest_type, image,
                                                          lod);