1 files changed, 157 insertions, 0 deletions
diff --git a/src/deps/skia/include/core/SkPoint3.h b/src/deps/skia/include/core/SkPoint3.h
new file mode 100644
index 000000000..e372f8279
--- /dev/null
+++ b/src/deps/skia/include/core/SkPoint3.h
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPoint3_DEFINED
+#define SkPoint3_DEFINED
+
+#include "include/core/SkPoint.h"
+
+struct SK_API SkPoint3 {
+    SkScalar fX, fY, fZ;
+
+    static SkPoint3 Make(SkScalar x, SkScalar y, SkScalar z) {
+        SkPoint3 pt;
+        pt.set(x, y, z);
+        return pt;
+    }
+
+    SkScalar x() const { return fX; }
+    SkScalar y() const { return fY; }
+    SkScalar z() const { return fZ; }
+
+    void set(SkScalar x, SkScalar y, SkScalar z) { fX = x; fY = y; fZ = z; }
+
+    friend bool operator==(const SkPoint3& a, const SkPoint3& b) {
+        return a.fX == b.fX && a.fY == b.fY && a.fZ == b.fZ;
+    }
+
+    friend bool operator!=(const SkPoint3& a, const SkPoint3& b) {
+        return !(a == b);
+    }
+
+    /** Returns the Euclidian distance from (0,0,0) to (x,y,z)
+    */
+    static SkScalar Length(SkScalar x, SkScalar y, SkScalar z);
+
+    /** Return the Euclidian distance from (0,0,0) to the point
+    */
+    SkScalar length() const { return SkPoint3::Length(fX, fY, fZ); }
+
+    /** Set the point (vector) to be unit-length in the same direction as it
+        already points.  If the point has a degenerate length (i.e., nearly 0)
+        then set it to (0,0,0) and return false; otherwise return true.
+    */
+    bool normalize();
+
+    /** Return a new point whose X, Y and Z coordinates are scaled.
+    */
+    SkPoint3 makeScale(SkScalar scale) const {
+        SkPoint3 p;
+        p.set(scale * fX, scale * fY, scale * fZ);
+        return p;
+    }
+
+    /** Scale the point's coordinates by scale.
+    */
+    void scale(SkScalar value) {
+        fX *= value;
+        fY *= value;
+        fZ *= value;
+    }
+
+    /** Return a new point whose X, Y and Z coordinates are the negative of the
+        original point's
+    */
+    SkPoint3 operator-() const {
+        SkPoint3 neg;
+        neg.fX = -fX;
+        neg.fY = -fY;
+        neg.fZ = -fZ;
+        return neg;
+    }
+
+    /** Returns a new point whose coordinates are the difference between
+        a and b (i.e., a - b)
+    */
+    friend SkPoint3 operator-(const SkPoint3& a, const SkPoint3& b) {
+        return { a.fX - b.fX, a.fY - b.fY, a.fZ - b.fZ };
+    }
+
+    /** Returns a new point whose coordinates are the sum of a and b (a + b)
+    */
+    friend SkPoint3 operator+(const SkPoint3& a, const SkPoint3& b) {
+        return { a.fX + b.fX, a.fY + b.fY, a.fZ + b.fZ };
+    }
+
+    /** Add v's coordinates to the point's
+    */
+    void operator+=(const SkPoint3& v) {
+        fX += v.fX;
+        fY += v.fY;
+        fZ += v.fZ;
+    }
+
+    /** Subtract v's coordinates from the point's
+    */
+    void operator-=(const SkPoint3& v) {
+        fX -= v.fX;
+        fY -= v.fY;
+        fZ -= v.fZ;
+    }
+
+    friend SkPoint3 operator*(SkScalar t, SkPoint3 p) {
+        return { t * p.fX, t * p.fY, t * p.fZ };
+    }
+
+    /** Returns true if fX, fY, and fZ are measurable values.
+
+     @return  true for values other than infinities and NaN
+     */
+    bool isFinite() const {
+        SkScalar accum = 0;
+        accum *= fX;
+        accum *= fY;
+        accum *= fZ;
+
+        // accum is either NaN or it is finite (zero).
+        SkASSERT(0 == accum || SkScalarIsNaN(accum));
+
+        // value==value will be true iff value is not NaN
+        // TODO: is it faster to say !accum or accum==accum?
+        return !SkScalarIsNaN(accum);
+    }
+
+    /** Returns the dot product of a and b, treating them as 3D vectors
+    */
+    static SkScalar DotProduct(const SkPoint3& a, const SkPoint3& b) {
+        return a.fX * b.fX + a.fY * b.fY + a.fZ * b.fZ;
+    }
+
+    SkScalar dot(const SkPoint3& vec) const {
+        return DotProduct(*this, vec);
+    }
+
+    /** Returns the cross product of a and b, treating them as 3D vectors
+    */
+    static SkPoint3 CrossProduct(const SkPoint3& a, const SkPoint3& b) {
+        SkPoint3 result;
+        result.fX = a.fY*b.fZ - a.fZ*b.fY;
+        result.fY = a.fZ*b.fX - a.fX*b.fZ;
+        result.fZ = a.fX*b.fY - a.fY*b.fX;
+
+        return result;
+    }
+
+    SkPoint3 cross(const SkPoint3& vec) const {
+        return CrossProduct(*this, vec);
+    }
+};
+
+typedef SkPoint3 SkVector3;
+typedef SkPoint3 SkColor3f;
+
+#endif