DX12 RHI: Fix the check for wive operation (o3de#18109)

* DX12 Fix: check wave operation.

Signed-off-by: Reece Hagan <[email protected]>

* Update Gems/Atom/RHI/DX12/Code/Source/RHI/Device.cpp

Co-authored-by: Akio Gaule <[email protected]>
Signed-off-by: Reece Hagan <[email protected]>

* DX12: Highest shader model to 6.0

D3D_HIGHEST_SHADER_MODEL can be undefined so use the version we check against.

Signed-off-by: Reece Hagan <[email protected]>

---------

Signed-off-by: Reece Hagan <[email protected]>
Signed-off-by: Reece Hagan <[email protected]>
Co-authored-by: Akio Gaule <[email protected]>

Author: DrogonMar

Gems/Atom/RHI/DX12/Code/Source/RHI/Device.cpp

@@ -244,8 +244,16 @@ namespace AZ
 
             // Check support of wive operation
             D3D12_FEATURE_DATA_SHADER_MODEL shaderModel;
-            GetDevice()->CheckFeatureSupport(D3D12_FEATURE_SHADER_MODEL, &shaderModel, sizeof(shaderModel));
-            m_features.m_waveOperation = shaderModel.HighestShaderModel >= D3D_SHADER_MODEL_6_0;
+            shaderModel.HighestShaderModel = D3D_SHADER_MODEL_6_0;
+            if (FAILED(GetDevice()->CheckFeatureSupport(D3D12_FEATURE_SHADER_MODEL, &shaderModel, sizeof(shaderModel))))
+            {
+                AZ_Warning("DX12",  false, "Failed to check feature D3D12_FEATURE_SHADER_MODEL");
+                m_features.m_waveOperation = false;
+            }
+            else
+            {
+                m_features.m_waveOperation = shaderModel.HighestShaderModel >= D3D_SHADER_MODEL_6_0;
+            }
 
 #ifdef AZ_DX12_DXR_SUPPORT
             D3D12_FEATURE_DATA_D3D12_OPTIONS5 options5;