Add m-esr52 at 52.6.0

1 files changed, 567 insertions, 0 deletions

diff --git a/dom/svg/nsSVGFilters.cpp b/dom/svg/nsSVGFilters.cpp
new file mode 100644
index 0000000000..c677156c9e
--- /dev/null
+++ b/dom/svg/nsSVGFilters.cpp
@@ -0,0 +1,567 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsSVGElement.h"
+#include "nsGkAtoms.h"
+#include "nsSVGNumber2.h"
+#include "nsSVGNumberPair.h"
+#include "nsSVGInteger.h"
+#include "nsSVGIntegerPair.h"
+#include "nsSVGBoolean.h"
+#include "nsCOMPtr.h"
+#include "nsSVGFilterInstance.h"
+#include "nsSVGEnum.h"
+#include "SVGNumberList.h"
+#include "SVGAnimatedNumberList.h"
+#include "DOMSVGAnimatedNumberList.h"
+#include "nsSVGFilters.h"
+#include "nsLayoutUtils.h"
+#include "nsSVGUtils.h"
+#include "nsStyleContext.h"
+#include "nsIFrame.h"
+#include "imgIContainer.h"
+#include "mozilla/dom/SVGFilterElement.h"
+#include "nsSVGString.h"
+#include "SVGContentUtils.h"
+#include <algorithm>
+#include "mozilla/dom/SVGAnimatedLength.h"
+#include "mozilla/dom/SVGComponentTransferFunctionElement.h"
+#include "mozilla/dom/SVGFEDistantLightElement.h"
+#include "mozilla/dom/SVGFEFuncAElementBinding.h"
+#include "mozilla/dom/SVGFEFuncBElementBinding.h"
+#include "mozilla/dom/SVGFEFuncGElementBinding.h"
+#include "mozilla/dom/SVGFEFuncRElementBinding.h"
+#include "mozilla/dom/SVGFEPointLightElement.h"
+#include "mozilla/dom/SVGFESpotLightElement.h"
+
+#if defined(XP_WIN)
+// Prevent Windows redefining LoadImage
+#undef LoadImage
+#endif
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+
+//--------------------Filter Element Base Class-----------------------
+
+nsSVGElement::LengthInfo nsSVGFE::sLengthInfo[4] =
+{
+  { &nsGkAtoms::x, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_PERCENTAGE, SVGContentUtils::X },
+  { &nsGkAtoms::y, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_PERCENTAGE, SVGContentUtils::Y },
+  { &nsGkAtoms::width, 100, nsIDOMSVGLength::SVG_LENGTHTYPE_PERCENTAGE, SVGContentUtils::X },
+  { &nsGkAtoms::height, 100, nsIDOMSVGLength::SVG_LENGTHTYPE_PERCENTAGE, SVGContentUtils::Y }
+};
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ADDREF_INHERITED(nsSVGFE,nsSVGFEBase)
+NS_IMPL_RELEASE_INHERITED(nsSVGFE,nsSVGFEBase)
+
+NS_INTERFACE_MAP_BEGIN(nsSVGFE)
+   // nsISupports is an ambiguous base of nsSVGFE so we have to work
+   // around that
+   if ( aIID.Equals(NS_GET_IID(nsSVGFE)) )
+     foundInterface = static_cast<nsISupports*>(static_cast<void*>(this));
+   else
+NS_INTERFACE_MAP_END_INHERITING(nsSVGFEBase)
+
+//----------------------------------------------------------------------
+// Implementation
+
+void
+nsSVGFE::GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources)
+{
+}
+
+bool
+nsSVGFE::OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,
+                         nsIPrincipal* aReferencePrincipal)
+{
+  // This is the default implementation for OutputIsTainted.
+  // Our output is tainted if we have at least one tainted input.
+  for (uint32_t i = 0; i < aInputsAreTainted.Length(); i++) {
+    if (aInputsAreTainted[i]) {
+      return true;
+    }
+  }
+  return false;
+}
+
+bool
+nsSVGFE::AttributeAffectsRendering(int32_t aNameSpaceID,
+                                   nsIAtom* aAttribute) const
+{
+  return aNameSpaceID == kNameSpaceID_None &&
+         (aAttribute == nsGkAtoms::x ||
+          aAttribute == nsGkAtoms::y ||
+          aAttribute == nsGkAtoms::width ||
+          aAttribute == nsGkAtoms::height ||
+          aAttribute == nsGkAtoms::result);
+}
+
+already_AddRefed<SVGAnimatedLength>
+nsSVGFE::X()
+{
+  return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+nsSVGFE::Y()
+{
+  return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+nsSVGFE::Width()
+{
+  return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+nsSVGFE::Height()
+{
+  return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedString>
+nsSVGFE::Result()
+{
+  return GetResultImageName().ToDOMAnimatedString(this);
+}
+
+//----------------------------------------------------------------------
+// nsIContent methods
+
+NS_IMETHODIMP_(bool)
+nsSVGFE::IsAttributeMapped(const nsIAtom* name) const
+{
+  static const MappedAttributeEntry* const map[] = {
+    sFiltersMap
+  };
+  
+  return FindAttributeDependence(name, map) ||
+    nsSVGFEBase::IsAttributeMapped(name);
+}
+
+//----------------------------------------------------------------------
+// nsSVGElement methods
+
+
+bool
+nsSVGFE::StyleIsSetToSRGB()
+{
+  nsIFrame* frame = GetPrimaryFrame();
+  if (!frame) return false;
+
+  nsStyleContext* style = frame->StyleContext();
+  return style->StyleSVG()->mColorInterpolationFilters ==
+           NS_STYLE_COLOR_INTERPOLATION_SRGB;
+}
+
+/* virtual */ bool
+nsSVGFE::HasValidDimensions() const
+{
+  return (!mLengthAttributes[ATTR_WIDTH].IsExplicitlySet() ||
+           mLengthAttributes[ATTR_WIDTH].GetAnimValInSpecifiedUnits() > 0) &&
+         (!mLengthAttributes[ATTR_HEIGHT].IsExplicitlySet() ||
+           mLengthAttributes[ATTR_HEIGHT].GetAnimValInSpecifiedUnits() > 0);
+}
+
+Size
+nsSVGFE::GetKernelUnitLength(nsSVGFilterInstance* aInstance,
+                             nsSVGNumberPair *aKernelUnitLength)
+{
+  if (!aKernelUnitLength->IsExplicitlySet()) {
+    return Size(1, 1);
+  }
+
+  float kernelX = aInstance->GetPrimitiveNumber(SVGContentUtils::X,
+                                                aKernelUnitLength,
+                                                nsSVGNumberPair::eFirst);
+  float kernelY = aInstance->GetPrimitiveNumber(SVGContentUtils::Y,
+                                                aKernelUnitLength,
+                                                nsSVGNumberPair::eSecond);
+  return Size(kernelX, kernelY);
+}
+
+nsSVGElement::LengthAttributesInfo
+nsSVGFE::GetLengthInfo()
+{
+  return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
+                              ArrayLength(sLengthInfo));
+}
+
+namespace mozilla {
+namespace dom {
+
+nsSVGElement::NumberListInfo SVGComponentTransferFunctionElement::sNumberListInfo[1] =
+{
+  { &nsGkAtoms::tableValues }
+};
+
+nsSVGElement::NumberInfo SVGComponentTransferFunctionElement::sNumberInfo[5] =
+{
+  { &nsGkAtoms::slope,     1, false },
+  { &nsGkAtoms::intercept, 0, false },
+  { &nsGkAtoms::amplitude, 1, false },
+  { &nsGkAtoms::exponent,  1, false },
+  { &nsGkAtoms::offset,    0, false }
+};
+
+nsSVGEnumMapping SVGComponentTransferFunctionElement::sTypeMap[] = {
+  {&nsGkAtoms::identity,
+   SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY},
+  {&nsGkAtoms::table,
+   SVG_FECOMPONENTTRANSFER_TYPE_TABLE},
+  {&nsGkAtoms::discrete,
+   SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE},
+  {&nsGkAtoms::linear,
+   SVG_FECOMPONENTTRANSFER_TYPE_LINEAR},
+  {&nsGkAtoms::gamma,
+   SVG_FECOMPONENTTRANSFER_TYPE_GAMMA},
+  {nullptr, 0}
+};
+
+nsSVGElement::EnumInfo SVGComponentTransferFunctionElement::sEnumInfo[1] =
+{
+  { &nsGkAtoms::type,
+    sTypeMap,
+    SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY
+  }
+};
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ADDREF_INHERITED(SVGComponentTransferFunctionElement,SVGComponentTransferFunctionElementBase)
+NS_IMPL_RELEASE_INHERITED(SVGComponentTransferFunctionElement,SVGComponentTransferFunctionElementBase)
+
+NS_INTERFACE_MAP_BEGIN(SVGComponentTransferFunctionElement)
+   // nsISupports is an ambiguous base of nsSVGFE so we have to work
+   // around that
+   if ( aIID.Equals(NS_GET_IID(SVGComponentTransferFunctionElement)) )
+     foundInterface = static_cast<nsISupports*>(static_cast<void*>(this));
+   else
+NS_INTERFACE_MAP_END_INHERITING(SVGComponentTransferFunctionElementBase)
+
+
+//----------------------------------------------------------------------
+// nsFEUnstyledElement methods
+
+bool
+SVGComponentTransferFunctionElement::AttributeAffectsRendering(int32_t aNameSpaceID,
+                                                               nsIAtom* aAttribute) const
+{
+  return aNameSpaceID == kNameSpaceID_None &&
+         (aAttribute == nsGkAtoms::tableValues ||
+          aAttribute == nsGkAtoms::slope ||
+          aAttribute == nsGkAtoms::intercept ||
+          aAttribute == nsGkAtoms::amplitude ||
+          aAttribute == nsGkAtoms::exponent ||
+          aAttribute == nsGkAtoms::offset ||
+          aAttribute == nsGkAtoms::type);
+}
+
+//----------------------------------------------------------------------
+
+already_AddRefed<SVGAnimatedEnumeration>
+SVGComponentTransferFunctionElement::Type()
+{
+  return mEnumAttributes[TYPE].ToDOMAnimatedEnum(this);
+}
+
+already_AddRefed<DOMSVGAnimatedNumberList>
+SVGComponentTransferFunctionElement::TableValues()
+{
+  return DOMSVGAnimatedNumberList::GetDOMWrapper(
+    &mNumberListAttributes[TABLEVALUES], this, TABLEVALUES);
+}
+
+already_AddRefed<SVGAnimatedNumber>
+SVGComponentTransferFunctionElement::Slope()
+{
+  return mNumberAttributes[SLOPE].ToDOMAnimatedNumber(this);
+}
+
+already_AddRefed<SVGAnimatedNumber>
+SVGComponentTransferFunctionElement::Intercept()
+{
+  return mNumberAttributes[INTERCEPT].ToDOMAnimatedNumber(this);
+}
+
+already_AddRefed<SVGAnimatedNumber>
+SVGComponentTransferFunctionElement::Amplitude()
+{
+  return mNumberAttributes[AMPLITUDE].ToDOMAnimatedNumber(this);
+}
+
+already_AddRefed<SVGAnimatedNumber>
+SVGComponentTransferFunctionElement::Exponent()
+{
+  return mNumberAttributes[EXPONENT].ToDOMAnimatedNumber(this);
+}
+
+already_AddRefed<SVGAnimatedNumber>
+SVGComponentTransferFunctionElement::Offset()
+{
+  return mNumberAttributes[OFFSET].ToDOMAnimatedNumber(this);
+}
+
+AttributeMap
+SVGComponentTransferFunctionElement::ComputeAttributes()
+{
+  uint32_t type = mEnumAttributes[TYPE].GetAnimValue();
+
+  float slope, intercept, amplitude, exponent, offset;
+  GetAnimatedNumberValues(&slope, &intercept, &amplitude, 
+                          &exponent, &offset, nullptr);
+
+  const SVGNumberList &tableValues =
+    mNumberListAttributes[TABLEVALUES].GetAnimValue();
+
+  AttributeMap map;
+  map.Set(eComponentTransferFunctionType, type);
+  map.Set(eComponentTransferFunctionSlope, slope);
+  map.Set(eComponentTransferFunctionIntercept, intercept);
+  map.Set(eComponentTransferFunctionAmplitude, amplitude);
+  map.Set(eComponentTransferFunctionExponent, exponent);
+  map.Set(eComponentTransferFunctionOffset, offset);
+  if (tableValues.Length()) {
+    map.Set(eComponentTransferFunctionTableValues, &tableValues[0], tableValues.Length());
+  } else {
+    map.Set(eComponentTransferFunctionTableValues, nullptr, 0);
+  }
+  return map;
+}
+
+//----------------------------------------------------------------------
+// nsSVGElement methods
+
+nsSVGElement::NumberListAttributesInfo
+SVGComponentTransferFunctionElement::GetNumberListInfo()
+{
+  return NumberListAttributesInfo(mNumberListAttributes, sNumberListInfo,
+                                  ArrayLength(sNumberListInfo));
+}
+
+nsSVGElement::EnumAttributesInfo
+SVGComponentTransferFunctionElement::GetEnumInfo()
+{
+  return EnumAttributesInfo(mEnumAttributes, sEnumInfo,
+                            ArrayLength(sEnumInfo));
+}
+
+nsSVGElement::NumberAttributesInfo
+SVGComponentTransferFunctionElement::GetNumberInfo()
+{
+  return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
+                              ArrayLength(sNumberInfo));
+}
+
+/* virtual */ JSObject*
+SVGFEFuncRElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGFEFuncRElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEFuncR)
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncRElement)
+
+/* virtual */ JSObject*
+SVGFEFuncGElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGFEFuncGElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEFuncG)
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncGElement)
+
+/* virtual */ JSObject*
+SVGFEFuncBElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGFEFuncBElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEFuncB)
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncBElement)
+
+/* virtual */ JSObject*
+SVGFEFuncAElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGFEFuncAElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FEFuncA)
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncAElement)
+
+} // namespace dom
+} // namespace mozilla
+
+//--------------------------------------------------------------------
+//
+nsSVGElement::NumberInfo nsSVGFELightingElement::sNumberInfo[4] =
+{
+  { &nsGkAtoms::surfaceScale, 1, false },
+  { &nsGkAtoms::diffuseConstant, 1, false },
+  { &nsGkAtoms::specularConstant, 1, false },
+  { &nsGkAtoms::specularExponent, 1, false }
+};
+
+nsSVGElement::NumberPairInfo nsSVGFELightingElement::sNumberPairInfo[1] =
+{
+  { &nsGkAtoms::kernelUnitLength, 0, 0 }
+};
+
+nsSVGElement::StringInfo nsSVGFELightingElement::sStringInfo[2] =
+{
+  { &nsGkAtoms::result, kNameSpaceID_None, true },
+  { &nsGkAtoms::in, kNameSpaceID_None, true }
+};
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ADDREF_INHERITED(nsSVGFELightingElement,nsSVGFELightingElementBase)
+NS_IMPL_RELEASE_INHERITED(nsSVGFELightingElement,nsSVGFELightingElementBase)
+
+NS_INTERFACE_MAP_BEGIN(nsSVGFELightingElement) 
+NS_INTERFACE_MAP_END_INHERITING(nsSVGFELightingElementBase)
+
+//----------------------------------------------------------------------
+// Implementation
+
+NS_IMETHODIMP_(bool)
+nsSVGFELightingElement::IsAttributeMapped(const nsIAtom* name) const
+{
+  static const MappedAttributeEntry* const map[] = {
+    sLightingEffectsMap
+  };
+
+  return FindAttributeDependence(name, map) ||
+    nsSVGFELightingElementBase::IsAttributeMapped(name);
+}
+
+void
+nsSVGFELightingElement::GetSourceImageNames(nsTArray<nsSVGStringInfo>& aSources)
+{
+  aSources.AppendElement(nsSVGStringInfo(&mStringAttributes[IN1], this));
+}
+
+AttributeMap
+nsSVGFELightingElement::ComputeLightAttributes(nsSVGFilterInstance* aInstance)
+{
+  // find specified light
+  for (nsCOMPtr<nsIContent> child = nsINode::GetFirstChild();
+       child;
+       child = child->GetNextSibling()) {
+    if (child->IsAnyOfSVGElements(nsGkAtoms::feDistantLight,
+                                  nsGkAtoms::fePointLight,
+                                  nsGkAtoms::feSpotLight)) {
+      return static_cast<SVGFELightElement*>(child.get())->ComputeLightAttributes(aInstance);
+    }
+  }
+
+  AttributeMap map;
+  map.Set(eLightType, (uint32_t)eLightTypeNone);
+  return map;
+}
+
+FilterPrimitiveDescription
+nsSVGFELightingElement::AddLightingAttributes(FilterPrimitiveDescription aDescription,
+                                              nsSVGFilterInstance* aInstance)
+{
+  nsIFrame* frame = GetPrimaryFrame();
+  if (!frame) {
+    return FilterPrimitiveDescription(PrimitiveType::Empty);
+  }
+
+  nsStyleContext* style = frame->StyleContext();
+  Color color(Color::FromABGR(style->StyleSVGReset()->mLightingColor));
+  color.a = 1.f;
+  float surfaceScale = mNumberAttributes[SURFACE_SCALE].GetAnimValue();
+  Size kernelUnitLength =
+    GetKernelUnitLength(aInstance, &mNumberPairAttributes[KERNEL_UNIT_LENGTH]);
+
+  if (kernelUnitLength.width <= 0 || kernelUnitLength.height <= 0) {
+    // According to spec, A negative or zero value is an error. See link below for details.
+    // https://www.w3.org/TR/SVG/filters.html#feSpecularLightingKernelUnitLengthAttribute
+    return FilterPrimitiveDescription(PrimitiveType::Empty);
+  }
+
+  FilterPrimitiveDescription& descr = aDescription;
+  descr.Attributes().Set(eLightingLight, ComputeLightAttributes(aInstance));
+  descr.Attributes().Set(eLightingSurfaceScale, surfaceScale);
+  descr.Attributes().Set(eLightingKernelUnitLength, kernelUnitLength);
+  descr.Attributes().Set(eLightingColor, color);
+  return descr;
+}
+
+bool
+nsSVGFELightingElement::AttributeAffectsRendering(int32_t aNameSpaceID,
+                                                  nsIAtom* aAttribute) const
+{
+  return nsSVGFELightingElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) ||
+         (aNameSpaceID == kNameSpaceID_None &&
+          (aAttribute == nsGkAtoms::in ||
+           aAttribute == nsGkAtoms::surfaceScale ||
+           aAttribute == nsGkAtoms::kernelUnitLength));
+}
+
+//----------------------------------------------------------------------
+// nsSVGElement methods
+
+nsSVGElement::NumberAttributesInfo
+nsSVGFELightingElement::GetNumberInfo()
+{
+  return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
+                              ArrayLength(sNumberInfo));
+}
+
+nsSVGElement::NumberPairAttributesInfo
+nsSVGFELightingElement::GetNumberPairInfo()
+{
+  return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
+                                  ArrayLength(sNumberPairInfo));
+}
+
+nsSVGElement::StringAttributesInfo
+nsSVGFELightingElement::GetStringInfo()
+{
+  return StringAttributesInfo(mStringAttributes, sStringInfo,
+                              ArrayLength(sStringInfo));
+}