From d359125adafd13e80d79267e742a5f599f6fc390 Mon Sep 17 00:00:00 2001
From: assiduous <assiduous@diligentgraphics.com>
Date: Fri, 13 Nov 2020 14:22:50 -0800
Subject: Added comparison operators for LayoutElement and InputLayoutDesc;
 updated texture test to support Metal.

---
 Graphics/GraphicsEngine/interface/InputLayout.h | 39 ++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'Graphics/GraphicsEngine')

diff --git a/Graphics/GraphicsEngine/interface/InputLayout.h b/Graphics/GraphicsEngine/interface/InputLayout.h
index c7b18965..308a6a8c 100644
--- a/Graphics/GraphicsEngine/interface/InputLayout.h
+++ b/Graphics/GraphicsEngine/interface/InputLayout.h
@@ -60,7 +60,6 @@ enum INPUT_ELEMENT_FREQUENCY
 /// Description of a single element of the input layout
 struct LayoutElement
 {
-
     /// HLSL semantic. Default value ("ATTRIB") allows HLSL shaders to be converted
     /// to GLSL and used in OpenGL backend as well as compiled to SPIRV and used
     /// in Vulkan backend.
@@ -172,6 +171,25 @@ struct LayoutElement
         Frequency           {_Frequency                    },
         InstanceDataStepRate{_InstanceDataStepRate         }
     {}
+
+    bool operator == (const LayoutElement& rhs) const
+    {
+        return strcmp(HLSLSemantic, rhs.HLSLSemantic) == 0 &&
+               InputIndex           == rhs.InputIndex      &&
+               BufferSlot           == rhs.BufferSlot      &&
+               NumComponents        == rhs.NumComponents   &&
+               ValueType            == rhs.ValueType       &&
+               IsNormalized         == rhs.IsNormalized    &&
+               RelativeOffset       == rhs.RelativeOffset  &&
+               Stride               == rhs.Stride          &&
+               Frequency            == rhs.Frequency       &&
+               InstanceDataStepRate == rhs.InstanceDataStepRate;
+    }
+
+    bool operator != (const LayoutElement& rhs) const
+    {
+        return !(*this == rhs);
+    }
 #endif
 };
 typedef struct LayoutElement LayoutElement;
@@ -195,6 +213,25 @@ struct InputLayoutDesc
         LayoutElements{_LayoutElements},
         NumElements   {_NumElements   }
     {}
+
+    bool operator == (const InputLayoutDesc& rhs) const
+    {
+        if (NumElements != rhs.NumElements)
+            return false;
+
+        for (Uint32 i=0; i < NumElements; ++i)
+        {
+            if (LayoutElements[i] != rhs.LayoutElements[i])
+                return false;
+        }
+
+        return true;
+    }
+
+    bool operator != (const InputLayoutDesc& rhs) const
+    {
+        return !(*this == rhs);
+    }
 #endif
 };
 typedef struct InputLayoutDesc InputLayoutDesc;
-- 
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