nsresult
nsCSSFilterInstance::SetAttributesForDropShadow(FilterPrimitiveDescription& aDescr)
{
nsCSSShadowArray* shadows = mFilter.GetDropShadow();
if (!shadows || shadows->Length() != 1) {
NS_NOTREACHED("Exactly one drop shadow should have been parsed.");
return NS_ERROR_FAILURE;
}
nsCSSShadowItem* shadow = shadows->ShadowAt(0);
// Set drop shadow blur radius.
Size radiusInFilterSpace = BlurRadiusToFilterSpace(shadow->mRadius);
aDescr.Attributes().Set(eDropShadowStdDeviation, radiusInFilterSpace);
// Set offset.
IntPoint offsetInFilterSpace = OffsetToFilterSpace(shadow->mXOffset, shadow->mYOffset);
aDescr.Attributes().Set(eDropShadowOffset, offsetInFilterSpace);
// Set color. If unspecified, use the CSS color property.
nscolor shadowColor = shadow->mHasColor ?
shadow->mColor : mTargetFrame->StyleColor()->mColor;
aDescr.Attributes().Set(eDropShadowColor, ToAttributeColor(shadowColor));
return NS_OK;
}
nsresult
nsCSSFilterInstance::SetAttributesForSepia(FilterPrimitiveDescription& aDescr)
{
// Set color matrix type.
aDescr.Attributes().Set(eColorMatrixType, (uint32_t)SVG_FECOLORMATRIX_TYPE_SEPIA);
// Set color matrix values.
const nsStyleCoord& styleValue = mFilter.GetFilterParameter();
float value = ClampFactor(styleValue.GetFactorOrPercentValue());
aDescr.Attributes().Set(eColorMatrixValues, &value, 1);
return NS_OK;
}
nsresult
nsCSSFilterInstance::SetAttributesForHueRotate(FilterPrimitiveDescription& aDescr)
{
// Set color matrix type.
aDescr.Attributes().Set(eColorMatrixType, (uint32_t)SVG_FECOLORMATRIX_TYPE_HUE_ROTATE);
// Set color matrix values.
const nsStyleCoord& styleValue = mFilter.GetFilterParameter();
float value = styleValue.GetAngleValueInDegrees();
aDescr.Attributes().Set(eColorMatrixValues, &value, 1);
return NS_OK;
}
void
nsCSSFilterInstance::SetBounds(FilterPrimitiveDescription& aDescr,
const nsTArray<FilterPrimitiveDescription>& aPrimitiveDescrs) {
int32_t inputIndex = GetLastResultIndex(aPrimitiveDescrs);
nsIntRect inputBounds = (inputIndex < 0) ?
mTargetBBoxInFilterSpace : ThebesIntRect(aPrimitiveDescrs[inputIndex].PrimitiveSubregion());
nsTArray<nsIntRegion> inputExtents;
inputExtents.AppendElement(inputBounds);
nsIntRegion outputExtents =
FilterSupport::PostFilterExtentsForPrimitive(aDescr, inputExtents);
IntRect outputBounds = ToIntRect(outputExtents.GetBounds());
aDescr.SetPrimitiveSubregion(outputBounds);
aDescr.SetFilterSpaceBounds(outputBounds);
}
nsresult
nsCSSFilterInstance::SetAttributesForBlur(FilterPrimitiveDescription& aDescr)
{
const nsStyleCoord& radiusInFrameSpace = mFilter.GetFilterParameter();
if (radiusInFrameSpace.GetUnit() != eStyleUnit_Coord) {
NS_NOTREACHED("unexpected unit");
return NS_ERROR_FAILURE;
}
Size radiusInFilterSpace = BlurRadiusToFilterSpace(radiusInFrameSpace.GetCoordValue());
aDescr.Attributes().Set(eGaussianBlurStdDeviation, radiusInFilterSpace);
return NS_OK;
}
nsresult
nsSVGFilterInstance::BuildPrimitives(nsTArray<FilterPrimitiveDescription>& aPrimitiveDescrs,
nsTArray<RefPtr<SourceSurface>>& aInputImages,
bool aInputIsTainted)
{
mSourceGraphicIndex = GetLastResultIndex(aPrimitiveDescrs);
// Clip previous filter's output to this filter's filter region.
if (mSourceGraphicIndex >= 0) {
FilterPrimitiveDescription& sourceDescr = aPrimitiveDescrs[mSourceGraphicIndex];
sourceDescr.SetPrimitiveSubregion(sourceDescr.PrimitiveSubregion().Intersect(mFilterSpaceBounds));
}
// Get the filter primitive elements.
nsTArray<RefPtr<nsSVGFE> > primitives;
for (nsIContent* child = mFilterElement->nsINode::GetFirstChild();
child;
child = child->GetNextSibling()) {
RefPtr<nsSVGFE> primitive;
CallQueryInterface(child, (nsSVGFE**)getter_AddRefs(primitive));
if (primitive) {
primitives.AppendElement(primitive);
}
}
// Maps source image name to source index.
nsDataHashtable<nsStringHashKey, int32_t> imageTable(8);
// The principal that we check principals of any loaded images against.
nsCOMPtr<nsIPrincipal> principal = mTargetContent->NodePrincipal();
for (uint32_t primitiveElementIndex = 0;
primitiveElementIndex < primitives.Length();
++primitiveElementIndex) {
nsSVGFE* filter = primitives[primitiveElementIndex];
AutoTArray<int32_t,2> sourceIndices;
nsresult rv = GetSourceIndices(filter, aPrimitiveDescrs, imageTable, sourceIndices);
if (NS_FAILED(rv)) {
return rv;
}
IntRect primitiveSubregion =
ComputeFilterPrimitiveSubregion(filter, aPrimitiveDescrs, sourceIndices);
nsTArray<bool> sourcesAreTainted;
GetInputsAreTainted(aPrimitiveDescrs, sourceIndices, aInputIsTainted, sourcesAreTainted);
FilterPrimitiveDescription descr =
filter->GetPrimitiveDescription(this, primitiveSubregion, sourcesAreTainted, aInputImages);
descr.SetIsTainted(filter->OutputIsTainted(sourcesAreTainted, principal));
descr.SetFilterSpaceBounds(mFilterSpaceBounds);
descr.SetPrimitiveSubregion(primitiveSubregion.Intersect(descr.FilterSpaceBounds()));
for (uint32_t i = 0; i < sourceIndices.Length(); i++) {
int32_t inputIndex = sourceIndices[i];
descr.SetInputPrimitive(i, inputIndex);
ColorSpace inputColorSpace = inputIndex >= 0
? aPrimitiveDescrs[inputIndex].OutputColorSpace()
: ColorSpace(ColorSpace::SRGB);
ColorSpace desiredInputColorSpace = filter->GetInputColorSpace(i, inputColorSpace);
descr.SetInputColorSpace(i, desiredInputColorSpace);
if (i == 0) {
// the output color space is whatever in1 is if there is an in1
descr.SetOutputColorSpace(desiredInputColorSpace);
}
}
if (sourceIndices.Length() == 0) {
descr.SetOutputColorSpace(filter->GetOutputColorSpace());
}
aPrimitiveDescrs.AppendElement(descr);
uint32_t primitiveDescrIndex = aPrimitiveDescrs.Length() - 1;
nsAutoString str;
filter->GetResultImageName().GetAnimValue(str, filter);
imageTable.Put(str, primitiveDescrIndex);
}
return NS_OK;
}
nsresult
nsSVGFilterInstance::BuildPrimitives()
{
nsTArray<nsRefPtr<nsSVGFE> > primitives;
for (nsIContent* child = mFilterElement->nsINode::GetFirstChild();
child;
child = child->GetNextSibling()) {
nsRefPtr<nsSVGFE> primitive;
CallQueryInterface(child, (nsSVGFE**)getter_AddRefs(primitive));
if (primitive) {
primitives.AppendElement(primitive);
}
}
// Maps source image name to source index.
nsDataHashtable<nsStringHashKey, int32_t> imageTable(10);
// The principal that we check principals of any loaded images against.
nsCOMPtr<nsIPrincipal> principal = mTargetFrame->GetContent()->NodePrincipal();
for (uint32_t i = 0; i < primitives.Length(); ++i) {
nsSVGFE* filter = primitives[i];
nsAutoTArray<int32_t,2> sourceIndices;
nsresult rv = GetSourceIndices(filter, i, imageTable, sourceIndices);
if (NS_FAILED(rv)) {
return rv;
}
IntRect primitiveSubregion =
ComputeFilterPrimitiveSubregion(filter, sourceIndices);
nsTArray<bool> sourcesAreTainted;
GetInputsAreTainted(sourceIndices, sourcesAreTainted);
FilterPrimitiveDescription descr =
filter->GetPrimitiveDescription(this, primitiveSubregion, sourcesAreTainted, mInputImages);
descr.SetIsTainted(filter->OutputIsTainted(sourcesAreTainted, principal));
descr.SetPrimitiveSubregion(primitiveSubregion);
for (uint32_t j = 0; j < sourceIndices.Length(); j++) {
int32_t inputIndex = sourceIndices[j];
descr.SetInputPrimitive(j, inputIndex);
ColorSpace inputColorSpace =
inputIndex < 0 ? SRGB : mPrimitiveDescriptions[inputIndex].OutputColorSpace();
ColorSpace desiredInputColorSpace = filter->GetInputColorSpace(j, inputColorSpace);
descr.SetInputColorSpace(j, desiredInputColorSpace);
if (j == 0) {
// the output color space is whatever in1 is if there is an in1
descr.SetOutputColorSpace(desiredInputColorSpace);
}
}
if (sourceIndices.Length() == 0) {
descr.SetOutputColorSpace(filter->GetOutputColorSpace());
}
mPrimitiveDescriptions.AppendElement(descr);
nsAutoString str;
filter->GetResultImageName().GetAnimValue(str, filter);
imageTable.Put(str, i);
}
return NS_OK;
}
