| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org> |
| * Copyright (C) 2005 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2021-2022 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #include "FilterEffect.h" |
| |
| namespace WebCore { |
| |
| enum class MorphologyOperatorType { |
| Unknown, |
| Erode, |
| Dilate |
| }; |
| |
| class FEMorphology : public FilterEffect { |
| public: |
| WEBCORE_EXPORT static Ref<FEMorphology> create(MorphologyOperatorType, float radiusX, float radiusY); |
| |
| MorphologyOperatorType morphologyOperator() const { return m_type; } |
| bool setMorphologyOperator(MorphologyOperatorType); |
| |
| float radiusX() const { return m_radiusX; } |
| bool setRadiusX(float); |
| |
| float radiusY() const { return m_radiusY; } |
| bool setRadiusY(float); |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static std::optional<Ref<FEMorphology>> decode(Decoder&); |
| |
| private: |
| FEMorphology(MorphologyOperatorType, float radiusX, float radiusY); |
| |
| FloatRect calculateImageRect(const Filter&, const FilterImageVector& inputs, const FloatRect& primitiveSubregion) const override; |
| |
| bool resultIsAlphaImage(const FilterImageVector& inputs) const override; |
| |
| std::unique_ptr<FilterEffectApplier> createSoftwareApplier() const override; |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, FilterRepresentation) const override; |
| |
| MorphologyOperatorType m_type; |
| float m_radiusX; |
| float m_radiusY; |
| }; |
| |
| template<class Encoder> |
| void FEMorphology::encode(Encoder& encoder) const |
| { |
| encoder << m_type; |
| encoder << m_radiusX; |
| encoder << m_radiusY; |
| } |
| |
| template<class Decoder> |
| std::optional<Ref<FEMorphology>> FEMorphology::decode(Decoder& decoder) |
| { |
| std::optional<MorphologyOperatorType> type; |
| decoder >> type; |
| if (!type) |
| return std::nullopt; |
| |
| std::optional<float> radiusX; |
| decoder >> radiusX; |
| if (!radiusX) |
| return std::nullopt; |
| |
| std::optional<float> radiusY; |
| decoder >> radiusY; |
| if (!radiusY) |
| return std::nullopt; |
| |
| return FEMorphology::create(*type, *radiusX, *radiusY); |
| } |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| |
| template<> struct EnumTraits<WebCore::MorphologyOperatorType> { |
| using values = EnumValues< |
| WebCore::MorphologyOperatorType, |
| |
| WebCore::MorphologyOperatorType::Unknown, |
| WebCore::MorphologyOperatorType::Erode, |
| WebCore::MorphologyOperatorType::Dilate |
| >; |
| }; |
| |
| } // namespace WTF |
| |
| SPECIALIZE_TYPE_TRAITS_FILTER_EFFECT(FEMorphology) |