SVGFEMerge* SVGFEMergeElement::filterEffect() const
{
if (!m_filterEffect)
m_filterEffect = static_cast<SVGFEMerge*>(SVGResourceFilter::createFilterEffect(FE_MERGE));
if (!m_filterEffect)
return 0;
setStandardAttributes(m_filterEffect);
Vector<String> mergeInputs;
for (Node* n = firstChild(); n != 0; n = n->nextSibling()) {
if (n->hasTagName(SVGNames::feMergeNodeTag))
mergeInputs.append(static_cast<SVGFEMergeNodeElement*>(n)->in1());
}
m_filterEffect->setMergeInputs(mergeInputs);
return m_filterEffect;
}
std::unique_ptr<SVGFilterBuilder> RenderSVGResourceFilter::buildPrimitives(SVGFilter* filter)
{
FloatRect targetBoundingBox = filter->targetBoundingBox();
// Add effects to the builder
auto builder = std::make_unique<SVGFilterBuilder>(SourceGraphic::create(filter), SourceAlpha::create(filter));
auto children = childrenOfType<SVGFilterPrimitiveStandardAttributes>(filterElement());
for (auto element = children.begin(), end = children.end(); element != end; ++element) {
RefPtr<FilterEffect> effect = element->build(builder.get(), filter);
if (!effect) {
builder->clearEffects();
return nullptr;
}
builder->appendEffectToEffectReferences(effect, element->renderer());
element->setStandardAttributes(effect.get());
effect->setEffectBoundaries(SVGLengthContext::resolveRectangle<SVGFilterPrimitiveStandardAttributes>(&*element, filterElement().primitiveUnits(), targetBoundingBox));
effect->setOperatingColorSpace(element->renderer()->style()->svgStyle()->colorInterpolationFilters() == CI_LINEARRGB ? ColorSpaceLinearRGB : ColorSpaceDeviceRGB);
builder->add(element->result(), effect.release());
}
return builder;
}
