dom/svg/SVGFECompositeElement.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/SVGFECompositeElement.h"
   8 #include "mozilla/dom/SVGFECompositeElementBinding.h"
   9 #include "mozilla/dom/Document.h"
  10 #include "mozilla/dom/BindContext.h"
  11
  12 NS_IMPL_NS_NEW_SVG_ELEMENT(FEComposite)
  13
  14 using namespace mozilla::gfx;
  15
  16 namespace mozilla::dom {
  17
  18 JSObject* SVGFECompositeElement::WrapNode(JSContext* aCx,
  19                                           JS::Handle<JSObject*> aGivenProto) {
  20   return SVGFECompositeElement_Binding::Wrap(aCx, this, aGivenProto);
  21 }
  22
  23 SVGElement::NumberInfo SVGFECompositeElement::sNumberInfo[4] = {
  24     {nsGkAtoms::k1, 0, false},
  25     {nsGkAtoms::k2, 0, false},
  26     {nsGkAtoms::k3, 0, false},
  27     {nsGkAtoms::k4, 0, false}};
  28
  29 SVGEnumMapping SVGFECompositeElement::sOperatorMap[] = {
  30     {nsGkAtoms::over, SVG_FECOMPOSITE_OPERATOR_OVER},
  31     {nsGkAtoms::in, SVG_FECOMPOSITE_OPERATOR_IN},
  32     {nsGkAtoms::out, SVG_FECOMPOSITE_OPERATOR_OUT},
  33     {nsGkAtoms::atop, SVG_FECOMPOSITE_OPERATOR_ATOP},
  34     {nsGkAtoms::xor_, SVG_FECOMPOSITE_OPERATOR_XOR},
  35     {nsGkAtoms::arithmetic, SVG_FECOMPOSITE_OPERATOR_ARITHMETIC},
  36     {nsGkAtoms::lighter, SVG_FECOMPOSITE_OPERATOR_LIGHTER},
  37     {nullptr, 0}};
  38
  39 SVGElement::EnumInfo SVGFECompositeElement::sEnumInfo[1] = {
  40     {nsGkAtoms::_operator, sOperatorMap, SVG_FECOMPOSITE_OPERATOR_OVER}};
  41
  42 SVGElement::StringInfo SVGFECompositeElement::sStringInfo[3] = {
  43     {nsGkAtoms::result, kNameSpaceID_None, true},
  44     {nsGkAtoms::in, kNameSpaceID_None, true},
  45     {nsGkAtoms::in2, kNameSpaceID_None, true}};
  46
  47 //----------------------------------------------------------------------
  48 // nsINode methods
  49
  50 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFECompositeElement)
  51
  52 already_AddRefed<DOMSVGAnimatedString> SVGFECompositeElement::In1() {
  53   return mStringAttributes[IN1].ToDOMAnimatedString(this);
  54 }
  55
  56 already_AddRefed<DOMSVGAnimatedString> SVGFECompositeElement::In2() {
  57   return mStringAttributes[IN2].ToDOMAnimatedString(this);
  58 }
  59
  60 already_AddRefed<DOMSVGAnimatedEnumeration> SVGFECompositeElement::Operator() {
  61   return mEnumAttributes[OPERATOR].ToDOMAnimatedEnum(this);
  62 }
  63
  64 already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K1() {
  65   return mNumberAttributes[ATTR_K1].ToDOMAnimatedNumber(this);
  66 }
  67
  68 already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K2() {
  69   return mNumberAttributes[ATTR_K2].ToDOMAnimatedNumber(this);
  70 }
  71
  72 already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K3() {
  73   return mNumberAttributes[ATTR_K3].ToDOMAnimatedNumber(this);
  74 }
  75
  76 already_AddRefed<DOMSVGAnimatedNumber> SVGFECompositeElement::K4() {
  77   return mNumberAttributes[ATTR_K4].ToDOMAnimatedNumber(this);
  78 }
  79
  80 void SVGFECompositeElement::SetK(float k1, float k2, float k3, float k4) {
  81   mNumberAttributes[ATTR_K1].SetBaseValue(k1, this);
  82   mNumberAttributes[ATTR_K2].SetBaseValue(k2, this);
  83   mNumberAttributes[ATTR_K3].SetBaseValue(k3, this);
  84   mNumberAttributes[ATTR_K4].SetBaseValue(k4, this);
  85 }
  86
  87 FilterPrimitiveDescription SVGFECompositeElement::GetPrimitiveDescription(
  88     SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
  89     const nsTArray<bool>& aInputsAreTainted,
  90     nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  91   CompositeAttributes atts;
  92   uint32_t op = mEnumAttributes[OPERATOR].GetAnimValue();
  93   atts.mOperator = op;
  94
  95   if (op == SVG_FECOMPOSITE_OPERATOR_ARITHMETIC) {
  96     float k[4];
  97     GetAnimatedNumberValues(k, k + 1, k + 2, k + 3, nullptr);
  98     atts.mCoefficients.AppendElements(k, 4);
  99   }
 100
 101   return FilterPrimitiveDescription(AsVariant(std::move(atts)));
 102 }
 103
 104 bool SVGFECompositeElement::AttributeAffectsRendering(
 105     int32_t aNameSpaceID, nsAtom* aAttribute) const {
 106   return SVGFECompositeElementBase::AttributeAffectsRendering(aNameSpaceID,
 107                                                               aAttribute) ||
 108          (aNameSpaceID == kNameSpaceID_None &&
 109           (aAttribute == nsGkAtoms::in || aAttribute == nsGkAtoms::in2 ||
 110            aAttribute == nsGkAtoms::k1 || aAttribute == nsGkAtoms::k2 ||
 111            aAttribute == nsGkAtoms::k3 || aAttribute == nsGkAtoms::k4 ||
 112            aAttribute == nsGkAtoms::_operator));
 113 }
 114
 115 void SVGFECompositeElement::GetSourceImageNames(
 116     nsTArray<SVGStringInfo>& aSources) {
 117   aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
 118   aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN2], this));
 119 }
 120
 121 nsresult SVGFECompositeElement::BindToTree(BindContext& aCtx,
 122                                            nsINode& aParent) {
 123   if (aCtx.InComposedDoc()) {
 124     aCtx.OwnerDoc().SetUseCounter(eUseCounter_custom_feComposite);
 125   }
 126
 127   return SVGFE::BindToTree(aCtx, aParent);
 128 }
 129
 130 //----------------------------------------------------------------------
 131 // SVGElement methods
 132
 133 SVGElement::NumberAttributesInfo SVGFECompositeElement::GetNumberInfo() {
 134   return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
 135                               ArrayLength(sNumberInfo));
 136 }
 137
 138 SVGElement::EnumAttributesInfo SVGFECompositeElement::GetEnumInfo() {
 139   return EnumAttributesInfo(mEnumAttributes, sEnumInfo, ArrayLength(sEnumInfo));
 140 }
 141
 142 SVGElement::StringAttributesInfo SVGFECompositeElement::GetStringInfo() {
 143   return StringAttributesInfo(mStringAttributes, sStringInfo,
 144                               ArrayLength(sStringInfo));
 145 }
 146
 147 }  // namespace mozilla::dom