PassRefPtr<FilterEffect> SVGFEConvolveMatrixElement::build(SVGFilterBuilder* filterBuilder)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return 0;
Vector<float> kernelMatrixValues;
SVGNumberList* numbers = kernelMatrix();
ExceptionCode ec = 0;
int numberOfItems = numbers->numberOfItems();
for (int i = 0; i < numberOfItems; ++i)
kernelMatrixValues.append(numbers->getItem(i, ec));
int orderXValue = orderX();
int orderYValue = orderY();
if (!hasAttribute(SVGNames::orderAttr)) {
orderXValue = 3;
orderYValue = 3;
}
// The spec says this is a requirement, and should bail out if fails
if (orderXValue * orderYValue != numberOfItems)
return 0;
int targetXValue = targetX();
int targetYValue = targetY();
if (hasAttribute(SVGNames::targetXAttr) && (targetXValue < 0 || targetXValue >= orderXValue))
return 0;
// The spec says the default value is: targetX = floor ( orderX / 2 ))
if (!hasAttribute(SVGNames::targetXAttr))
targetXValue = static_cast<int>(floorf(orderXValue / 2));
if (hasAttribute(SVGNames::targetYAttr) && (targetYValue < 0 || targetYValue >= orderYValue))
return 0;
// The spec says the default value is: targetY = floor ( orderY / 2 ))
if (!hasAttribute(SVGNames::targetYAttr))
targetYValue = static_cast<int>(floorf(orderYValue / 2));
float divisorValue = divisor();
if (hasAttribute(SVGNames::divisorAttr) && !divisorValue)
return 0;
if (!hasAttribute(SVGNames::divisorAttr)) {
for (int i = 0; i < numberOfItems; ++i)
divisorValue += kernelMatrixValues[i];
if (!divisorValue)
divisorValue = 1;
}
RefPtr<FilterEffect> effect = FEConvolveMatrix::create(
IntSize(orderXValue, orderYValue), divisorValue,
bias(), IntPoint(targetXValue, targetYValue), static_cast<EdgeModeType>(edgeMode()),
FloatPoint(kernelUnitLengthX(), kernelUnitLengthX()), preserveAlpha(), kernelMatrixValues);
effect->inputEffects().append(input1);
return effect.release();
}
PassRefPtr<FilterEffect> SVGFEDiffuseLightingElement::build(SVGFilterBuilder* filterBuilder)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return 0;
RefPtr<RenderStyle> filterStyle = styleForRenderer();
Color color = filterStyle->svgStyle()->lightingColor();
return FEDiffuseLighting::create(input1, color, surfaceScale(), diffuseConstant(),
kernelUnitLengthX(), kernelUnitLengthY(), findLights());
}
bool SVGFEDiffuseLightingElement::build(SVGResourceFilter* filterResource)
{
FilterEffect* input1 = filterResource->builder()->getEffectById(in1());
if (!input1)
return false;
RefPtr<RenderStyle> filterStyle = styleForRenderer();
Color color = filterStyle->svgStyle()->lightingColor();
RefPtr<FilterEffect> effect = FEDiffuseLighting::create(input1, color, surfaceScale(), diffuseConstant(),
kernelUnitLengthX(), kernelUnitLengthY(), findLights());
filterResource->addFilterEffect(this, effect.release());
return true;
}
bool SVGFEDiffuseLightingElement::build(FilterBuilder* builder)
{
FilterEffect* input1 = builder->getEffectById(in1());
if(!input1)
return false;
RefPtr<RenderStyle> filterStyle = styleForRenderer();
Color color = filterStyle->svgStyle()->lightingColor();
RefPtr<FilterEffect> addedEffect = FEDiffuseLighting::create(input1, color, surfaceScale(), diffuseConstant(),
kernelUnitLengthX(), kernelUnitLengthY(), findLights());
builder->add(result(), addedEffect.release());
return true;
}
PassRefPtr<FilterEffect> SVGFESpecularLightingElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(in1());
if (!input1)
return 0;
RefPtr<RenderStyle> filterStyle = styleForRenderer();
Color color = filterStyle->svgStyle()->lightingColor();
RefPtr<FilterEffect> effect = FESpecularLighting::create(filter, color, surfaceScale(), specularConstant(),
specularExponent(), kernelUnitLengthX(), kernelUnitLengthY(), findLights());
effect->inputEffects().append(input1);
return effect.release();
}
PassRefPtr<FilterEffect> SVGFEDiffuseLightingElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
{
FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
if (!input1)
return nullptr;
RefPtr<LightSource> lightSource = SVGFELightElement::findLightSource(*this);
if (!lightSource)
return nullptr;
RenderObject* renderer = this->renderer();
if (!renderer)
return nullptr;
ASSERT(renderer->style());
Color color = renderer->style()->svgStyle()->lightingColor();
RefPtr<FilterEffect> effect = FEDiffuseLighting::create(filter, color, m_surfaceScale->currentValue()->value(), m_diffuseConstant->currentValue()->value(),
kernelUnitLengthX()->currentValue()->value(), kernelUnitLengthY()->currentValue()->value(), lightSource.release());
effect->inputEffects().append(input1);
return effect.release();
}
