void FEDropShadow::determineAbsolutePaintRect()
{
Filter* filter = this->filter();
ASSERT(filter);
FloatRect absolutePaintRect = inputEffect(0)->absolutePaintRect();
FloatRect absoluteOffsetPaintRect(absolutePaintRect);
absoluteOffsetPaintRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
absolutePaintRect.unite(absoluteOffsetPaintRect);
unsigned kernelSizeX = 0;
unsigned kernelSizeY = 0;
FEGaussianBlur::calculateKernelSize(filter, kernelSizeX, kernelSizeY, m_stdX, m_stdY);
// We take the half kernel size and multiply it with three, because we run box blur three times.
absolutePaintRect.inflateX(3 * kernelSizeX * 0.5f);
absolutePaintRect.inflateY(3 * kernelSizeY * 0.5f);
if (clipsToBounds())
absolutePaintRect.intersect(maxEffectRect());
else
absolutePaintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
void SourceGraphic::determineAbsolutePaintRect()
{
Filter* filter = this->filter();
FloatRect paintRect = filter->sourceImageRect();
paintRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEOffset::determineAbsolutePaintRect()
{
FloatRect paintRect = inputEffect(0)->absolutePaintRect();
Filter* filter = this->filter();
paintRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
paintRect.intersect(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEImage::determineAbsolutePaintRect()
{
ASSERT(m_image);
FloatRect srcRect(FloatPoint(), m_image->size());
FloatRect paintRect(m_absoluteSubregion);
m_preserveAspectRatio.transformRect(paintRect, srcRect);
paintRect.intersect(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEMorphology::determineAbsolutePaintRect()
{
FloatRect paintRect = inputEffect(0)->absolutePaintRect();
Filter* filter = this->filter();
paintRect.inflateX(filter->applyHorizontalScale(m_radiusX));
paintRect.inflateY(filter->applyVerticalScale(m_radiusY));
paintRect.intersect(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEComposite::determineAbsolutePaintRect()
{
switch (m_type) {
case FECOMPOSITE_OPERATOR_IN:
case FECOMPOSITE_OPERATOR_ATOP:
// For In and Atop the first effect just influences the result of
// the second effect. So just use the absolute paint rect of the second effect here.
setAbsolutePaintRect(inputEffect(1)->absolutePaintRect());
return;
case FECOMPOSITE_OPERATOR_ARITHMETIC:
// Arithmetic may influnce the compele filter primitive region. So we can't
// optimize the paint region here.
setAbsolutePaintRect(enclosingIntRect(maxEffectRect()));
return;
default:
// Take the union of both input effects.
FilterEffect::determineAbsolutePaintRect();
return;
}
}
void FEOffset::determineAbsolutePaintRect()
{
FloatRect paintRect = inputEffect(0)->absolutePaintRect();
Filter& filter = this->filter();
paintRect.move(filter.applyHorizontalScale(m_dx), filter.applyVerticalScale(m_dy));
if (clipsToBounds())
paintRect.intersect(maxEffectRect());
else
paintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEGaussianBlur::determineAbsolutePaintRect()
{
IntSize kernelSize = calculateKernelSize(filter(), FloatPoint(m_stdX, m_stdY));
FloatRect absolutePaintRect = inputEffect(0)->absolutePaintRect();
// Edge modes other than 'none' do not inflate the affected paint rect.
if (m_edgeMode != EDGEMODE_NONE) {
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
return;
}
// We take the half kernel size and multiply it with three, because we run box blur three times.
absolutePaintRect.inflateX(3 * kernelSize.width() * 0.5f);
absolutePaintRect.inflateY(3 * kernelSize.height() * 0.5f);
if (clipsToBounds())
absolutePaintRect.intersect(maxEffectRect());
else
absolutePaintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
void FEDropShadow::determineAbsolutePaintRect()
{
Filter* filter = this->filter();
ASSERT(filter);
FloatRect absolutePaintRect = mapRect(inputEffect(0)->absolutePaintRect());
if (clipsToBounds())
absolutePaintRect.intersect(maxEffectRect());
else
absolutePaintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
void FEGaussianBlur::determineAbsolutePaintRect()
{
FloatRect absolutePaintRect = inputEffect(0)->absolutePaintRect();
absolutePaintRect.intersect(maxEffectRect());
unsigned kernelSizeX = 0;
unsigned kernelSizeY = 0;
calculateKernelSize(filter(), kernelSizeX, kernelSizeY, m_stdX, m_stdY);
// We take the half kernel size and multiply it with three, because we run box blur three times.
absolutePaintRect.inflateX(3 * kernelSizeX * 0.5f);
absolutePaintRect.inflateY(3 * kernelSizeY * 0.5f);
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
void FEImage::determineAbsolutePaintRect()
{
FloatRect paintRect = filter().absoluteTransform().mapRect(filterPrimitiveSubregion());
FloatRect srcRect;
if (m_image) {
srcRect.setSize(m_image->size());
m_preserveAspectRatio.transformRect(paintRect, srcRect);
} else if (RenderElement* renderer = referencedRenderer())
srcRect = filter().absoluteTransform().mapRect(renderer->repaintRectInLocalCoordinates());
if (clipsToBounds())
paintRect.intersect(maxEffectRect());
else
paintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
void FEDropShadow::determineAbsolutePaintRect()
{
Filter& filter = this->filter();
FloatRect absolutePaintRect = inputEffect(0)->absolutePaintRect();
FloatRect absoluteOffsetPaintRect(absolutePaintRect);
absoluteOffsetPaintRect.move(filter.applyHorizontalScale(m_dx), filter.applyVerticalScale(m_dy));
absolutePaintRect.unite(absoluteOffsetPaintRect);
IntSize kernelSize = FEGaussianBlur::calculateKernelSize(filter, FloatPoint(m_stdX, m_stdY));
// We take the half kernel size and multiply it with three, because we run box blur three times.
absolutePaintRect.inflateX(3 * kernelSize.width() * 0.5f);
absolutePaintRect.inflateY(3 * kernelSize.height() * 0.5f);
if (clipsToBounds())
absolutePaintRect.intersect(maxEffectRect());
else
absolutePaintRect.unite(maxEffectRect());
setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
}
void SourceAlpha::determineAbsolutePaintRect(Filter* filter)
{
FloatRect paintRect = filter->sourceImageRect();
paintRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
setAbsolutePaintRect(enclosingIntRect(paintRect));
}
