Initial commit of existing code.

* All renderdoc code up to this point was written by me, history is available by request

renderdoc/maths/vec.h

@@ -0,0 +1,108 @@
+/******************************************************************************
+ * The MIT License (MIT)
+ * 
+ * Copyright (c) 2014 Crytek
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ ******************************************************************************/
+
+
+#pragma once
+
+#include <math.h>
+
+struct Vec2f
+{
+	Vec2f(float X = 0.0f, float Y = 0.0f) { x = X; y = Y; }
+	float x;
+	float y;
+};
+
+class Vec3f
+{
+	public:
+		Vec3f(const float X=0.0f, const float Y=0.0f, const float Z=0.0f)
+			: x(X), y(Y), z(Z)
+		{ }
+
+		inline float Dot(const Vec3f &o) const
+		{
+			return x*o.x + y*o.y + z*o.z;
+		}
+
+		inline Vec3f Cross(const Vec3f &o) const
+		{
+			return Vec3f(y*o.z - z*o.y,
+						 z*o.x - x*o.z,
+						 x*o.y - y*o.x);
+		}
+
+		inline float Length() const
+		{
+			return sqrt(Dot(*this));
+		}
+
+		inline void Normalise()
+		{
+			float l = Length();
+			x /= l;
+			y /= l;
+			z /= l;
+		}
+
+		float x, y, z;
+};
+
+struct Vec4f
+{
+	Vec4f(float X = 0.0f, float Y = 0.0f, float Z = 0.0f, float W = 0.0f) { x = X; y = Y; z = Z; w = W; }
+	float x, y, z, w;
+};
+
+inline Vec3f operator *(const Vec3f &a, const float b)
+{
+	return Vec3f(a.x*b, a.y*b, a.z*b);
+}
+
+inline Vec3f operator +(const Vec3f &a, const Vec3f &b)
+{
+	return Vec3f(a.x+b.x, a.y+b.y, a.z+b.z);
+}
+
+inline Vec3f operator -(const Vec3f &a)
+{
+	return Vec3f(-a.x, -a.y, -a.z);
+}
+
+inline Vec3f operator -(const Vec3f &a, const Vec3f &b)
+{
+	return a + (-b);
+}
+
+inline Vec3f operator -=(Vec3f &a, const Vec3f &b)
+{
+	a = a-b;
+	return a;
+}
+
+inline Vec3f operator +=(Vec3f &a, const Vec3f &b)
+{
+	a = a+b;
+	return a;
+}