1 files changed, 47 insertions, 0 deletions
diff --git a/src/MatrixView.h b/src/MatrixView.h
new file mode 100644
index 0000000..70ab223
--- /dev/null
+++ b/src/MatrixView.h
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+/* 
+* Copyright (c) 2008-2016, NVIDIA CORPORATION. All rights reserved. 
+* 
+* NVIDIA CORPORATION and its licensors retain all intellectual property 
+* and proprietary rights in and to this software, related documentation 
+* and any modifications thereto. Any use, reproduction, disclosure or 
+* distribution of this software and related documentation without an express 
+* license agreement from NVIDIA CORPORATION is strictly prohibited. 
+*/
+
+#pragma once
+#include "Common.h"
+
+namespace GFSDK
+{
+namespace SSAO
+{
+
+//--------------------------------------------------------------------------------
+class MatrixView
+{
+public:
+    MatrixView(const GFSDK_SSAO_Matrix& Matrix)
+    {
+        m_pFloat4x4 = Matrix.Data.Array;
+        m_IsRowMajor = (Matrix.Layout == GFSDK_SSAO_ROW_MAJOR_ORDER);
+    }
+
+    float operator() (UINT Row, UINT Col) const
+    {
+        ASSERT(Row < 4);
+        ASSERT(Col < 4);
+
+        if (!m_IsRowMajor)
+        {
+            std::swap(Row, Col);
+        }
+        return m_pFloat4x4[Row * 4 + Col];
+    }
+
+private:
+    const float* m_pFloat4x4;
+    bool m_IsRowMajor;
+};
+
+} // namespace SSAO
+} // namespace GFSDK