| /* |
| * 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) 2010 Zoltan Herczeg <zherczeg@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" |
| #include "FloatPoint.h" |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| enum class EdgeModeType { |
| Unknown, |
| Duplicate, |
| Wrap, |
| None |
| }; |
| |
| class FEConvolveMatrix : public FilterEffect { |
| public: |
| WEBCORE_EXPORT static Ref<FEConvolveMatrix> create(const IntSize& kernelSize, float divisor, float bias, const IntPoint& targetOffset, EdgeModeType, const FloatPoint& kernelUnitLength, bool preserveAlpha, const Vector<float>& kernelMatrix); |
| |
| IntSize kernelSize() const { return m_kernelSize; } |
| void setKernelSize(const IntSize&); |
| |
| const Vector<float>& kernel() const { return m_kernelMatrix; } |
| void setKernel(const Vector<float>&); |
| |
| float divisor() const { return m_divisor; } |
| bool setDivisor(float); |
| |
| float bias() const { return m_bias; } |
| bool setBias(float); |
| |
| IntPoint targetOffset() const { return m_targetOffset; } |
| bool setTargetOffset(const IntPoint&); |
| |
| EdgeModeType edgeMode() const { return m_edgeMode; } |
| bool setEdgeMode(EdgeModeType); |
| |
| FloatPoint kernelUnitLength() const { return m_kernelUnitLength; } |
| bool setKernelUnitLength(const FloatPoint&); |
| |
| bool preserveAlpha() const { return m_preserveAlpha; } |
| bool setPreserveAlpha(bool); |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static std::optional<Ref<FEConvolveMatrix>> decode(Decoder&); |
| |
| private: |
| FEConvolveMatrix(const IntSize& kernelSize, float divisor, float bias, const IntPoint& targetOffset, EdgeModeType, const FloatPoint& kernelUnitLength, bool preserveAlpha, const Vector<float>& kernelMatrix); |
| |
| FloatRect calculateImageRect(const Filter&, const FilterImageVector& inputs, const FloatRect& primitiveSubregion) const override; |
| |
| std::unique_ptr<FilterEffectApplier> createSoftwareApplier() const override; |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, FilterRepresentation) const override; |
| |
| IntSize m_kernelSize; |
| float m_divisor; |
| float m_bias; |
| IntPoint m_targetOffset; |
| EdgeModeType m_edgeMode; |
| FloatPoint m_kernelUnitLength; |
| bool m_preserveAlpha; |
| Vector<float> m_kernelMatrix; |
| }; |
| |
| template<class Encoder> |
| void FEConvolveMatrix::encode(Encoder& encoder) const |
| { |
| encoder << m_kernelSize; |
| encoder << m_divisor; |
| encoder << m_bias; |
| encoder << m_targetOffset; |
| encoder << m_edgeMode; |
| encoder << m_kernelUnitLength; |
| encoder << m_preserveAlpha; |
| encoder << m_kernelMatrix; |
| } |
| |
| template<class Decoder> |
| std::optional<Ref<FEConvolveMatrix>> FEConvolveMatrix::decode(Decoder& decoder) |
| { |
| std::optional<IntSize> kernelSize; |
| decoder >> kernelSize; |
| if (!kernelSize) |
| return std::nullopt; |
| |
| std::optional<float> divisor; |
| decoder >> divisor; |
| if (!divisor) |
| return std::nullopt; |
| |
| std::optional<float> bias; |
| decoder >> bias; |
| if (!bias) |
| return std::nullopt; |
| |
| std::optional<IntPoint> targetOffset; |
| decoder >> targetOffset; |
| if (!targetOffset) |
| return std::nullopt; |
| |
| std::optional<EdgeModeType> edgeMode; |
| decoder >> edgeMode; |
| if (!edgeMode) |
| return std::nullopt; |
| |
| std::optional<FloatPoint> kernelUnitLength; |
| decoder >> kernelUnitLength; |
| if (!kernelUnitLength) |
| return std::nullopt; |
| |
| std::optional<bool> preserveAlpha; |
| decoder >> preserveAlpha; |
| if (!kernelUnitLength) |
| return std::nullopt; |
| |
| std::optional<Vector<float>> kernelMatrix; |
| decoder >> kernelMatrix; |
| if (!kernelMatrix) |
| return std::nullopt; |
| |
| return FEConvolveMatrix::create(*kernelSize, *divisor, *bias, *targetOffset, *edgeMode, *kernelUnitLength, *preserveAlpha, WTFMove(*kernelMatrix)); |
| } |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| |
| template<> struct EnumTraits<WebCore::EdgeModeType> { |
| using values = EnumValues< |
| WebCore::EdgeModeType, |
| |
| WebCore::EdgeModeType::Unknown, |
| WebCore::EdgeModeType::Duplicate, |
| WebCore::EdgeModeType::Wrap, |
| WebCore::EdgeModeType::None |
| >; |
| }; |
| |
| } // namespace WTF |
| |
| SPECIALIZE_TYPE_TRAITS_FILTER_EFFECT(FEConvolveMatrix) |