1 files changed, 149 insertions, 0 deletions
diff --git a/thirdparty/thekla_atlas/nvmath/Vector.h b/thirdparty/thekla_atlas/nvmath/Vector.h
new file mode 100644
index 0000000000..ad18672a8a
--- /dev/null
+++ b/thirdparty/thekla_atlas/nvmath/Vector.h
@@ -0,0 +1,149 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#pragma once
+#ifndef NV_MATH_VECTOR_H
+#define NV_MATH_VECTOR_H
+
+#include "nvmath.h"
+
+namespace nv
+{
+    class NVMATH_CLASS Vector2
+    {
+    public:
+        typedef Vector2 const & Arg;
+
+        Vector2();
+        explicit Vector2(float f);
+        Vector2(float x, float y);
+        Vector2(Vector2::Arg v);
+
+        //template <typename T> explicit Vector2(const T & v) : x(v.x), y(v.y) {}
+        //template <typename T> operator T() const { return T(x, y); }
+
+        const Vector2 & operator=(Vector2::Arg v);
+
+        const float * ptr() const;
+
+        void set(float x, float y);
+
+        Vector2 operator-() const;
+        void operator+=(Vector2::Arg v);
+        void operator-=(Vector2::Arg v);
+        void operator*=(float s);
+        void operator*=(Vector2::Arg v);
+
+        friend bool operator==(Vector2::Arg a, Vector2::Arg b);
+        friend bool operator!=(Vector2::Arg a, Vector2::Arg b);
+
+        union {
+            struct {
+                float x, y;
+            };
+            float component[2];
+        };
+    };
+
+    class NVMATH_CLASS Vector3
+    {
+    public:
+        typedef Vector3 const & Arg;
+
+        Vector3();
+        explicit Vector3(float x);
+        //explicit Vector3(int x) : x(float(x)), y(float(x)), z(float(x)) {}
+        Vector3(float x, float y, float z);
+        Vector3(Vector2::Arg v, float z);
+        Vector3(Vector3::Arg v);
+
+        //template <typename T> explicit Vector3(const T & v) : x(v.x), y(v.y), z(v.z) {}
+        //template <typename T> operator T() const { return T(x, y, z); }
+
+        const Vector3 & operator=(Vector3::Arg v);
+
+        Vector2 xy() const;
+
+        const float * ptr() const;
+
+        void set(float x, float y, float z);
+
+        Vector3 operator-() const;
+        void operator+=(Vector3::Arg v);
+        void operator-=(Vector3::Arg v);
+        void operator*=(float s);
+        void operator/=(float s);
+        void operator*=(Vector3::Arg v);
+        void operator/=(Vector3::Arg v);
+
+        friend bool operator==(Vector3::Arg a, Vector3::Arg b);
+        friend bool operator!=(Vector3::Arg a, Vector3::Arg b);
+
+        union {
+            struct {
+                float x, y, z;
+            };
+            float component[3];
+        };
+    };
+
+    class NVMATH_CLASS Vector4
+    {
+    public:
+        typedef Vector4 const & Arg;
+
+        Vector4();
+        explicit Vector4(float x);
+        Vector4(float x, float y, float z, float w);
+        Vector4(Vector2::Arg v, float z, float w);
+        Vector4(Vector2::Arg v, Vector2::Arg u);
+        Vector4(Vector3::Arg v, float w);
+        Vector4(Vector4::Arg v);
+        //	Vector4(const Quaternion & v);
+
+        //template <typename T> explicit Vector4(const T & v) : x(v.x), y(v.y), z(v.z), w(v.w) {}
+        //template <typename T> operator T() const { return T(x, y, z, w); }
+
+        const Vector4 & operator=(Vector4::Arg v);
+
+        Vector2 xy() const;
+        Vector2 zw() const;
+        Vector3 xyz() const;
+
+        const float * ptr() const;
+
+        void set(float x, float y, float z, float w);
+
+        Vector4 operator-() const;
+        void operator+=(Vector4::Arg v);
+        void operator-=(Vector4::Arg v);
+        void operator*=(float s);
+        void operator/=(float s);
+        void operator*=(Vector4::Arg v);
+        void operator/=(Vector4::Arg v);
+
+        friend bool operator==(Vector4::Arg a, Vector4::Arg b);
+        friend bool operator!=(Vector4::Arg a, Vector4::Arg b);
+
+        union {
+            struct {
+                float x, y, z, w;
+            };
+            float component[4];
+        };
+    };
+
+} // nv namespace
+
+// If we had these functions, they would be ambiguous, the compiler would not know which one to pick:
+//template <typename T> Vector2 to(const T & v) { return Vector2(v.x, v.y); }
+//template <typename T> Vector3 to(const T & v) { return Vector3(v.x, v.y, v.z); }
+//template <typename T> Vector4 to(const T & v) { return Vector4(v.x, v.y, v.z, v.z); }
+
+// We could use a cast operator so that we could infer the expected type, but that doesn't work the same way in all compilers and produces horrible error messages.
+
+// Instead we simply have explicit casts:
+template <typename T> T to(const nv::Vector2 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector2)); return T(v.x, v.y); }
+template <typename T> T to(const nv::Vector3 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector3)); return T(v.x, v.y, v.z); }
+template <typename T> T to(const nv::Vector4 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector4)); return T(v.x, v.y, v.z, v.w); }
+
+#endif // NV_MATH_VECTOR_H