From 831a7978370acddcc24649eecc40f763ebd17177 Mon Sep 17 00:00:00 2001
From: Giovanni Mascellani <gmascellani@codeweavers.com>
Date: Wed, 9 Oct 2024 17:12:17 +0200
Subject: [PATCH] vkd3d-shader/ir: Validate minimum precision in shader
 signatures.

---
 libs/vkd3d-shader/ir.c                   | 5 +++++
 libs/vkd3d-shader/vkd3d_shader_private.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index 2ca683b9..a4a8f23b 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -6590,6 +6590,11 @@ static void vsir_validate_signature_element(struct validation_context *ctx,
                     idx, signature_type, element->component_type);
             break;
     }
+
+    if (element->min_precision >= VKD3D_SHADER_MINIMUM_PRECISION_COUNT)
+        validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_SIGNATURE,
+                "element %u of %s signature: Invalid minimum precision %#x.",
+                idx, signature_type, element->min_precision);
 }
 
 static void vsir_validate_signature(struct validation_context *ctx,
diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index bf55fa4b..b7397dfe 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -60,6 +60,7 @@
 #define VKD3D_DVEC2_SIZE 2
 
 #define VKD3D_SHADER_COMPONENT_TYPE_COUNT (VKD3D_SHADER_COMPONENT_UINT64 + 1)
+#define VKD3D_SHADER_MINIMUM_PRECISION_COUNT (VKD3D_SHADER_MINIMUM_PRECISION_UINT_16 + 1)
 
 enum vkd3d_shader_error
 {