135 lines
5.0 KiB
C++
135 lines
5.0 KiB
C++
/*
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* Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
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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 "SVGFEDisplacementMapElement.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(SVGFEDisplacementMapElement);
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inline SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document& document)
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: SVGFilterPrimitiveStandardAttributes(tagName, document)
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{
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ASSERT(hasTagName(SVGNames::feDisplacementMapTag));
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static std::once_flag onceFlag;
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std::call_once(onceFlag, [] {
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PropertyRegistry::registerProperty<SVGNames::inAttr, &SVGFEDisplacementMapElement::m_in1>();
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PropertyRegistry::registerProperty<SVGNames::in2Attr, &SVGFEDisplacementMapElement::m_in2>();
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PropertyRegistry::registerProperty<SVGNames::xChannelSelectorAttr, ChannelSelectorType, &SVGFEDisplacementMapElement::m_xChannelSelector>();
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PropertyRegistry::registerProperty<SVGNames::yChannelSelectorAttr, ChannelSelectorType, &SVGFEDisplacementMapElement::m_yChannelSelector>();
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PropertyRegistry::registerProperty<SVGNames::scaleAttr, &SVGFEDisplacementMapElement::m_scale>();
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});
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}
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Ref<SVGFEDisplacementMapElement> SVGFEDisplacementMapElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new SVGFEDisplacementMapElement(tagName, document));
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}
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void SVGFEDisplacementMapElement::parseAttribute(const QualifiedName& name, const AtomString& value)
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{
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if (name == SVGNames::xChannelSelectorAttr) {
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auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
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if (propertyValue > 0)
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m_xChannelSelector->setBaseValInternal<ChannelSelectorType>(propertyValue);
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return;
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}
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if (name == SVGNames::yChannelSelectorAttr) {
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auto propertyValue = SVGPropertyTraits<ChannelSelectorType>::fromString(value);
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if (propertyValue > 0)
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m_yChannelSelector->setBaseValInternal<ChannelSelectorType>(propertyValue);
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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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if (name == SVGNames::scaleAttr) {
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m_scale->setBaseValInternal(value.toFloat());
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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 SVGFEDisplacementMapElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
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{
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FEDisplacementMap* displacementMap = static_cast<FEDisplacementMap*>(effect);
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if (attrName == SVGNames::xChannelSelectorAttr)
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return displacementMap->setXChannelSelector(xChannelSelector());
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if (attrName == SVGNames::yChannelSelectorAttr)
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return displacementMap->setYChannelSelector(yChannelSelector());
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if (attrName == SVGNames::scaleAttr)
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return displacementMap->setScale(scale());
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ASSERT_NOT_REACHED();
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return false;
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}
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void SVGFEDisplacementMapElement::svgAttributeChanged(const QualifiedName& attrName)
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{
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if (attrName == SVGNames::xChannelSelectorAttr || attrName == SVGNames::yChannelSelectorAttr || attrName == SVGNames::scaleAttr) {
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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> SVGFEDisplacementMapElement::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 = FEDisplacementMap::create(filter, xChannelSelector(), yChannelSelector(), scale());
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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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