| /* |
| * 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 Dirk Schulze <krit@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 "Image.h" |
| #include "ImageBuffer.h" |
| #include "SVGPreserveAspectRatioValue.h" |
| #include "SourceImage.h" |
| |
| namespace WebCore { |
| |
| class Image; |
| class ImageBuffer; |
| |
| class FEImage final : public FilterEffect { |
| public: |
| WEBCORE_EXPORT static Ref<FEImage> create(SourceImage&&, const FloatRect& sourceImageRect, const SVGPreserveAspectRatioValue&); |
| |
| const SourceImage& sourceImage() const { return m_sourceImage; } |
| void setImageSource(SourceImage&& sourceImage) { m_sourceImage = WTFMove(sourceImage); } |
| |
| FloatRect sourceImageRect() const { return m_sourceImageRect; } |
| const SVGPreserveAspectRatioValue& preserveAspectRatio() const { return m_preserveAspectRatio; } |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static std::optional<Ref<FEImage>> decode(Decoder&); |
| |
| private: |
| FEImage(SourceImage&&, const FloatRect& sourceImageRect, const SVGPreserveAspectRatioValue&); |
| |
| unsigned numberOfEffectInputs() const override { return 0; } |
| |
| // FEImage results are always in DestinationColorSpace::SRGB() |
| void setOperatingColorSpace(const DestinationColorSpace&) override { } |
| |
| FloatRect calculateImageRect(const Filter&, const FilterImageVector& inputs, const FloatRect& primitiveSubregion) const override; |
| |
| std::unique_ptr<FilterEffectApplier> createSoftwareApplier() const final; |
| |
| WTF::TextStream& externalRepresentation(WTF::TextStream&, FilterRepresentation) const final; |
| |
| SourceImage m_sourceImage; |
| FloatRect m_sourceImageRect; |
| SVGPreserveAspectRatioValue m_preserveAspectRatio; |
| }; |
| |
| template<class Encoder> |
| void FEImage::encode(Encoder& encoder) const |
| { |
| encoder << m_sourceImage; |
| encoder << m_sourceImageRect; |
| encoder << m_preserveAspectRatio; |
| } |
| |
| template<class Decoder> |
| std::optional<Ref<FEImage>> FEImage::decode(Decoder& decoder) |
| { |
| std::optional<SourceImage> sourceImage; |
| decoder >> sourceImage; |
| if (!sourceImage) |
| return std::nullopt; |
| |
| std::optional<FloatRect> sourceImageRect; |
| decoder >> sourceImageRect; |
| if (!sourceImageRect) |
| return std::nullopt; |
| |
| std::optional<SVGPreserveAspectRatioValue> preserveAspectRatio; |
| decoder >> preserveAspectRatio; |
| if (!preserveAspectRatio) |
| return std::nullopt; |
| |
| return FEImage::create(WTFMove(*sourceImage), *sourceImageRect, *preserveAspectRatio); |
| } |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_FILTER_EFFECT(FEImage) |