void FilterEffect::applyRecursive()
{
if (hasResult())
return;
unsigned size = m_inputEffects.size();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = m_inputEffects.at(i).get();
in->applyRecursive();
if (!in->hasResult())
return;
// Convert input results to the current effect's color space.
transformResultColorSpace(in, i);
}
setResultColorSpace(m_operatingColorSpace);
if (!isFilterSizeValid(m_absolutePaintRect))
return;
if (!mayProduceInvalidPreMultipliedPixels()) {
for (unsigned i = 0; i < size; ++i)
inputEffect(i)->correctFilterResultIfNeeded();
}
applySoftware();
}
PassRefPtr<SkImageFilter> FEComposite::createImageFilterInternal(SkiaImageFilterBuilder* builder, bool requiresPMColorValidation)
{
RefPtr<SkImageFilter> foreground(builder->build(inputEffect(0), operatingColorSpace(), !mayProduceInvalidPreMultipliedPixels()));
RefPtr<SkImageFilter> background(builder->build(inputEffect(1), operatingColorSpace(), !mayProduceInvalidPreMultipliedPixels()));
SkImageFilter::CropRect cropRect = getCropRect(builder->cropOffset());
RefPtr<SkXfermode> mode;
if (m_type == FECOMPOSITE_OPERATOR_ARITHMETIC)
mode = adoptRef(SkArithmeticMode::Create(SkFloatToScalar(m_k1), SkFloatToScalar(m_k2), SkFloatToScalar(m_k3), SkFloatToScalar(m_k4), requiresPMColorValidation));
else
mode = adoptRef(SkXfermode::Create(toXfermode(m_type)));
return adoptRef(SkXfermodeImageFilter::Create(mode.get(), background.get(), foreground.get(), &cropRect));
}
