1 files changed, 0 insertions, 123 deletions
diff --git a/WebCore/platform/graphics/UnitBezier.h b/WebCore/platform/graphics/UnitBezier.h
deleted file mode 100644
index 973d75b..0000000
--- a/WebCore/platform/graphics/UnitBezier.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
- 
-#ifndef UnitBezier_h
-#define UnitBezier_h
-
-#include <math.h>
-
-namespace WebCore {
-
-    struct UnitBezier {
-        UnitBezier(double p1x, double p1y, double p2x, double p2y)
-        {
-            // Calculate the polynomial coefficients, implicit first and last control points are (0,0) and (1,1).
-            cx = 3.0 * p1x;
-            bx = 3.0 * (p2x - p1x) - cx;
-            ax = 1.0 - cx -bx;
-             
-            cy = 3.0 * p1y;
-            by = 3.0 * (p2y - p1y) - cy;
-            ay = 1.0 - cy - by;
-        }
-        
-        double sampleCurveX(double t)
-        {
-            // `ax t^3 + bx t^2 + cx t' expanded using Horner's rule.
-            return ((ax * t + bx) * t + cx) * t;
-        }
-        
-        double sampleCurveY(double t)
-        {
-            return ((ay * t + by) * t + cy) * t;
-        }
-        
-        double sampleCurveDerivativeX(double t)
-        {
-            return (3.0 * ax * t + 2.0 * bx) * t + cx;
-        }
-        
-        // Given an x value, find a parametric value it came from.
-        double solveCurveX(double x, double epsilon)
-        {
-            double t0;
-            double t1;
-            double t2;
-            double x2;
-            double d2;
-            int i;
-
-            // First try a few iterations of Newton's method -- normally very fast.
-            for (t2 = x, i = 0; i < 8; i++) {
-                x2 = sampleCurveX(t2) - x;
-                if (fabs (x2) < epsilon)
-                    return t2;
-                d2 = sampleCurveDerivativeX(t2);
-                if (fabs(d2) < 1e-6)
-                    break;
-                t2 = t2 - x2 / d2;
-            }
-
-            // Fall back to the bisection method for reliability.
-            t0 = 0.0;
-            t1 = 1.0;
-            t2 = x;
-
-            if (t2 < t0)
-                return t0;
-            if (t2 > t1)
-                return t1;
-
-            while (t0 < t1) {
-                x2 = sampleCurveX(t2);
-                if (fabs(x2 - x) < epsilon)
-                    return t2;
-                if (x > x2)
-                    t0 = t2;
-                else
-                    t1 = t2;
-                t2 = (t1 - t0) * .5 + t0;
-            }
-
-            // Failure.
-            return t2;
-        }
-
-        double solve(double x, double epsilon)
-        {
-            return sampleCurveY(solveCurveX(x, epsilon));
-        }
-        
-    private:
-        double ax;
-        double bx;
-        double cx;
-        
-        double ay;
-        double by;
-        double cy;
-    };
-}
-#endif