120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
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* Copyright (C) 2014 Adobe Systems Incorporated. All rights reserved.
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* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "SVGFEBlendElement.h"
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#include "FEBlend.h"
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#include "FilterEffect.h"
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#include "SVGFilterBuilder.h"
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#include "SVGNames.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(SVGFEBlendElement);
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inline SVGFEBlendElement::SVGFEBlendElement(const QualifiedName& tagName, Document& document)
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: SVGFilterPrimitiveStandardAttributes(tagName, document)
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{
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ASSERT(hasTagName(SVGNames::feBlendTag));
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static std::once_flag onceFlag;
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std::call_once(onceFlag, [] {
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PropertyRegistry::registerProperty<SVGNames::modeAttr, BlendMode, &SVGFEBlendElement::m_mode>();
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PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEBlendElement::m_in1>();
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PropertyRegistry::registerProperty<SVGNames::in2Attr, &SVGFEBlendElement::m_in2>();
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});
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}
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Ref<SVGFEBlendElement> SVGFEBlendElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new SVGFEBlendElement(tagName, document));
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}
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void SVGFEBlendElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == SVGNames::modeAttr) {
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BlendMode mode = BlendMode::Normal;
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if (parseBlendMode(value, mode))
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m_mode->setBaseValInternal<BlendMode>(mode);
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return;
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}
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if (name == SVGNames::inAttr) {
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m_in1->setBaseValInternal(value);
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return;
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}
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if (name == SVGNames::in2Attr) {
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m_in2->setBaseValInternal(value);
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return;
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}
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SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
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}
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bool SVGFEBlendElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
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{
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FEBlend* blend = static_cast<FEBlend*>(effect);
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if (attrName == SVGNames::modeAttr)
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return blend->setBlendMode(mode());
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ASSERT_NOT_REACHED();
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return false;
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}
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void SVGFEBlendElement::svgAttributeChanged(const QualifiedName& attrName)
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{
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if (attrName == SVGNames::modeAttr) {
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InstanceInvalidationGuard guard(*this);
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primitiveAttributeChanged(attrName);
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return;
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}
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if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
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InstanceInvalidationGuard guard(*this);
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invalidate();
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return;
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}
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SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
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}
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RefPtr<FilterEffect> SVGFEBlendElement::build(SVGFilterBuilder* filterBuilder, Filter& filter) const
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{
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auto input1 = filterBuilder->getEffectById(in1());
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auto input2 = filterBuilder->getEffectById(in2());
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if (!input1 || !input2)
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return nullptr;
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auto effect = FEBlend::create(filter, mode());
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FilterEffectVector& inputEffects = effect->inputEffects();
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inputEffects.reserveCapacity(2);
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inputEffects.append(input1);
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inputEffects.append(input2);
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return effect;
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}
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}
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