PassRefPtr<SkImageFilter> FEImage::createImageFilter(SkiaImageFilterBuilder* builder)
{
RenderObject* renderer = referencedRenderer();
if (!m_image && !renderer)
return adoptRef(SkBitmapSource::Create(SkBitmap()));
setOperatingColorSpace(ColorSpaceDeviceRGB);
if (renderer)
return createImageFilterForRenderer(renderer, builder);
FloatRect srcRect = FloatRect(FloatPoint(), m_image->size());
FloatRect dstRect = filterPrimitiveSubregion();
// FIXME: CSS image filters currently do not seem to set filter primitive
// subregion correctly if unspecified. So default to srcRect size if so.
if (dstRect.isEmpty())
dstRect = srcRect;
m_preserveAspectRatio->transformRect(dstRect, srcRect);
if (!m_image->nativeImageForCurrentFrame())
return adoptRef(SkBitmapSource::Create(SkBitmap()));
RefPtr<SkImageFilter> result = adoptRef(SkBitmapSource::Create(m_image->nativeImageForCurrentFrame()->bitmap(), srcRect, dstRect));
return result.release();
}
SourceGraphic::SourceGraphic(Filter* filter)
: FilterEffect(filter)
{
setOperatingColorSpace(ColorSpaceDeviceRGB);
}
SourceAlpha::SourceAlpha(FilterEffect* sourceEffect)
: FilterEffect(sourceEffect->filter())
{
setOperatingColorSpace(sourceEffect->operatingColorSpace());
inputEffects().append(sourceEffect);
}
