chromium/third_party/skia/src/base/SkBezierCurves.h

/*
 * Copyright 2023 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#ifndef SkBezierCurves_DEFINED
#define SkBezierCurves_DEFINED

#include "include/private/base/SkSpan_impl.h"

#include <array>

struct SkPoint;

/**
 * Utilities for dealing with cubic Bézier curves. These have a start XY
 * point, an end XY point, and two control XY points in between. They take
 * a parameter t which is between 0 and 1 (inclusive) which is used to
 * interpolate between the start and end points, via a route dictated by
 * the control points, and return a new XY point.
 *
 * We store a Bézier curve as an array of 8 floats or doubles, where
 * the even indices are the X coordinates, and the odd indices are the Y
 * coordinates.
 */
class SkBezierCubic { … };

class SkBezierQuad { … };

#endif  // SkBezierCurves_DEFINED