nsresult
nsFilterInstance::BuildPrimitivesForFilter(const nsStyleFilter& aFilter)
{
NS_ASSERTION(mUserSpaceToFilterSpaceScale.width > 0.0f &&
mFilterSpaceToUserSpaceScale.height > 0.0f,
"scale factors between spaces should be positive values");
if (aFilter.GetType() == NS_STYLE_FILTER_URL) {
// Build primitives for an SVG filter.
nsSVGFilterInstance svgFilterInstance(aFilter, mTargetContent,
mMetrics, mTargetBBox,
mUserSpaceToFilterSpaceScale,
mFilterSpaceToUserSpaceScale);
if (!svgFilterInstance.IsInitialized()) {
return NS_ERROR_FAILURE;
}
return svgFilterInstance.BuildPrimitives(mPrimitiveDescriptions, mInputImages);
}
// Build primitives for a CSS filter.
// If we don't have a frame, use opaque black for shadows with unspecified
// shadow colors.
nscolor shadowFallbackColor =
mTargetFrame ? mTargetFrame->StyleColor()->mColor : NS_RGB(0,0,0);
nsCSSFilterInstance cssFilterInstance(aFilter, shadowFallbackColor,
mTargetBBoxInFilterSpace,
mFrameSpaceInCSSPxToFilterSpaceTransform);
return cssFilterInstance.BuildPrimitives(mPrimitiveDescriptions);
}
nsresult
nsFilterInstance::BuildPrimitivesForFilter(const nsStyleFilter& aFilter)
{
NS_ASSERTION(mUserSpaceToFilterSpaceScale.width > 0.0f &&
mFilterSpaceToUserSpaceScale.height > 0.0f,
"scale factors between spaces should be positive values");
if (aFilter.GetType() == NS_STYLE_FILTER_URL) {
// Build primitives for an SVG filter.
nsSVGFilterInstance svgFilterInstance(aFilter, mTargetFrame, mTargetBBox,
mUserSpaceToFilterSpaceScale,
mFilterSpaceToUserSpaceScale);
if (!svgFilterInstance.IsInitialized()) {
return NS_ERROR_FAILURE;
}
return svgFilterInstance.BuildPrimitives(mPrimitiveDescriptions, mInputImages);
}
// Build primitives for a CSS filter.
nsCSSFilterInstance cssFilterInstance(aFilter, mTargetFrame,
mTargetBBoxInFilterSpace,
mFrameSpaceInCSSPxToFilterSpaceTransform);
return cssFilterInstance.BuildPrimitives(mPrimitiveDescriptions);
}
nsresult
nsFilterInstance::BuildPrimitivesForFilter(const nsStyleFilter& aFilter)
{
if (aFilter.GetType() == NS_STYLE_FILTER_URL) {
// Build primitives for an SVG filter.
nsSVGFilterInstance svgFilterInstance(aFilter, mTargetFrame, mTargetBBox);
if (!svgFilterInstance.IsInitialized()) {
return NS_ERROR_FAILURE;
}
// For now, we use the last SVG filter region as the overall filter region
// for the filter chain. Eventually, we will compute the overall filter
// using all of the generated FilterPrimitiveDescriptions.
mFilterRegion = svgFilterInstance.GetFilterRegion();
mFilterSpaceBounds = svgFilterInstance.GetFilterSpaceBounds();
return svgFilterInstance.BuildPrimitives(mPrimitiveDescriptions, mInputImages);
}
// Eventually, we will build primitives for CSS filters, too.
return NS_ERROR_FAILURE;
}
