chromium/third_party/skia/modules/skottie/src/layers/shapelayer/PuckerBloat.cpp

/*
 * Copyright 2020 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkPoint_impl.h"
#include "modules/skottie/src/Adapter.h"
#include "modules/skottie/src/SkottiePriv.h"
#include "modules/skottie/src/SkottieValue.h"
#include "modules/skottie/src/layers/shapelayer/ShapeLayer.h"
#include "modules/sksg/include/SkSGGeometryEffect.h"
#include "modules/sksg/include/SkSGGeometryNode.h"
#include "modules/sksg/include/SkSGNode.h"
#include "src/core/SkGeometry.h"
#include "src/utils/SkJSON.h"

#include <utility>
#include <vector>

namespace skottie::internal {

namespace  {

static SkPoint lerp(const SkPoint& p0, const SkPoint& p1, SkScalar t) { … }

// Operates on the cubic representation of a shape.  Pulls vertices towards the shape center,
// and cubic control points away from the center.  The general shape center is the vertex average.
class PuckerBloatEffect final : public sksg::GeometryEffect { … };

class PuckerBloatAdapter final : public DiscardableAdapterBase<PuckerBloatAdapter,
                                                               PuckerBloatEffect> { … };

} // namespace

std::vector<sk_sp<sksg::GeometryNode>> ShapeBuilder::AttachPuckerBloatGeometryEffect(
        const skjson::ObjectValue& jround, const AnimationBuilder* abuilder,
        std::vector<sk_sp<sksg::GeometryNode>>&& geos) { … }

} // namespace skottie::internal