GFSDK_HBAO+_distro_r3.0_cl20573789

1 files changed, 83 insertions, 0 deletions

diff --git a/src/MathUtil.h b/src/MathUtil.h
new file mode 100644
index 0000000..c540b04
--- /dev/null
+++ b/src/MathUtil.h
@@ -0,0 +1,83 @@
+/* 
+* 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 <algorithm>
+#include <math.h>
+#include <float.h>
+
+//--------------------------------------------------------------------------------
+// Defines
+//--------------------------------------------------------------------------------
+#undef min
+#undef max
+
+#undef Min
+#define Min(a,b)            std::min(a,b)
+
+#undef Max
+#define Max(a,b)            std::max(a,b)
+
+#undef Clamp
+#define Clamp(x,a,b)        (Min(Max(x, a), b))
+
+#undef iDivUp
+#define iDivUp(a,b)         ((a + b-1) / b)
+
+#undef D3DX_PI
+#define D3DX_PI 3.141592654f
+
+#undef EPSILON
+#define EPSILON 1.e-6f
+
+//--------------------------------------------------------------------------------
+// Types
+//--------------------------------------------------------------------------------
+namespace GFSDK
+{
+namespace SSAO
+{
+
+struct float2
+{
+    float X,Y;
+};
+
+struct float3
+{
+    float X,Y,Z;
+};
+
+struct float4
+{
+    float X,Y,Z,W;
+};
+
+struct float4x4
+{
+    float Data[4*4];
+};
+
+struct uint4
+{
+    GFSDK_SSAO_UINT X,Y,Z,W;
+    uint4() {}
+    uint4(const GFSDK_SSAO_Version& V)
+    {
+        X = V.Major;
+        Y = V.Minor;
+        Z = V.Branch;
+        W = V.Revision;
+    }
+};
+
+} // namespace SSAO
+} // namespace GFSDK