From fdc0f124cec2e1977baf58b29685d736e157f6a3 Mon Sep 17 00:00:00 2001
From: Krzysztof Bogacki <krzysztof.bogacki@leancode.pl>
Date: Sun, 21 May 2023 19:45:27 +0200
Subject: [PATCH] nvapi-d3d12: Fallback to core CheckDriverMatchingIdentifier
 for RTAS

---
 src/nvapi_d3d12.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/nvapi_d3d12.cpp b/src/nvapi_d3d12.cpp
index 4621ed70..cb3f936b 100644
--- a/src/nvapi_d3d12.cpp
+++ b/src/nvapi_d3d12.cpp
@@ -367,7 +367,15 @@ extern "C" {
             }
         }
 
-        return NoImplementation(n);
+        if (pParams->version != NVAPI_CHECK_DRIVER_MATCHING_IDENTIFIER_EX_PARAMS_VER1)
+            return IncompatibleStructVersion(n);
+
+        if (pParams->serializedDataType == NVAPI_D3D12_SERIALIZED_DATA_RAYTRACING_ACCELERATION_STRUCTURE_EX) {
+            pParams->checkStatus = pDevice->CheckDriverMatchingIdentifier(D3D12_SERIALIZED_DATA_RAYTRACING_ACCELERATION_STRUCTURE, pParams->pIdentifierToCheck);
+            return Ok(n, alreadyLoggedOk);
+        }
+
+        return NotSupported(n);
     }
 
     static bool ConvertBuildRaytracingAccelerationStructureInputs(const NVAPI_D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_INPUTS_EX* nvDesc, std::vector<D3D12_RAYTRACING_GEOMETRY_DESC>& geometryDescs, D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_INPUTS* d3dDesc) {