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SVGFEMorphologyElement.cpp (5404B)

      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/SVGFEMorphologyElement.h"
      8 
      9 #include "mozilla/SVGFilterInstance.h"
     10 #include "mozilla/dom/BindContext.h"
     11 #include "mozilla/dom/Document.h"
     12 #include "mozilla/dom/SVGFEMorphologyElementBinding.h"
     13 
     14 NS_IMPL_NS_NEW_SVG_ELEMENT(FEMorphology)
     15 
     16 using namespace mozilla::gfx;
     17 
     18 namespace mozilla::dom {
     19 
     20 JSObject* SVGFEMorphologyElement::WrapNode(JSContext* aCx,
     21                                           JS::Handle<JSObject*> aGivenProto) {
     22  return SVGFEMorphologyElement_Binding::Wrap(aCx, this, aGivenProto);
     23 }
     24 
     25 SVGElement::NumberPairInfo SVGFEMorphologyElement::sNumberPairInfo[1] = {
     26    {nsGkAtoms::radius, 0, 0}};
     27 
     28 SVGEnumMapping SVGFEMorphologyElement::sOperatorMap[] = {
     29    {nsGkAtoms::erode, SVG_OPERATOR_ERODE},
     30    {nsGkAtoms::dilate, SVG_OPERATOR_DILATE},
     31    {nullptr, 0}};
     32 
     33 SVGElement::EnumInfo SVGFEMorphologyElement::sEnumInfo[1] = {
     34    {nsGkAtoms::_operator, sOperatorMap, SVG_OPERATOR_ERODE}};
     35 
     36 SVGElement::StringInfo SVGFEMorphologyElement::sStringInfo[2] = {
     37    {nsGkAtoms::result, kNameSpaceID_None, true},
     38    {nsGkAtoms::in, kNameSpaceID_None, true}};
     39 
     40 //----------------------------------------------------------------------
     41 // nsINode methods
     42 
     43 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEMorphologyElement)
     44 
     45 //----------------------------------------------------------------------
     46 // SVGFEMorphologyElement methods
     47 
     48 already_AddRefed<DOMSVGAnimatedString> SVGFEMorphologyElement::In1() {
     49  return mStringAttributes[IN1].ToDOMAnimatedString(this);
     50 }
     51 
     52 already_AddRefed<DOMSVGAnimatedEnumeration> SVGFEMorphologyElement::Operator() {
     53  return mEnumAttributes[OPERATOR].ToDOMAnimatedEnum(this);
     54 }
     55 
     56 already_AddRefed<DOMSVGAnimatedNumber> SVGFEMorphologyElement::RadiusX() {
     57  return mNumberPairAttributes[RADIUS].ToDOMAnimatedNumber(
     58      SVGAnimatedNumberPair::eFirst, this);
     59 }
     60 
     61 already_AddRefed<DOMSVGAnimatedNumber> SVGFEMorphologyElement::RadiusY() {
     62  return mNumberPairAttributes[RADIUS].ToDOMAnimatedNumber(
     63      SVGAnimatedNumberPair::eSecond, this);
     64 }
     65 
     66 void SVGFEMorphologyElement::SetRadius(float rx, float ry) {
     67  mNumberPairAttributes[RADIUS].SetBaseValues(rx, ry, this);
     68 }
     69 
     70 void SVGFEMorphologyElement::GetSourceImageNames(
     71    nsTArray<SVGStringInfo>& aSources) {
     72  aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
     73 }
     74 
     75 #define MORPHOLOGY_EPSILON 0.0001
     76 
     77 void SVGFEMorphologyElement::GetRXY(int32_t* aRX, int32_t* aRY,
     78                                    const SVGFilterInstance& aInstance) {
     79  // Subtract an epsilon here because we don't want a value that's just
     80  // slightly larger than an integer to round up to the next integer; it's
     81  // probably meant to be the integer it's close to, modulo machine precision
     82  // issues.
     83  *aRX = NSToIntCeil(aInstance.GetPrimitiveNumber(
     84                         SVGContentUtils::X, &mNumberPairAttributes[RADIUS],
     85                         SVGAnimatedNumberPair::eFirst) -
     86                     MORPHOLOGY_EPSILON);
     87  *aRY = NSToIntCeil(aInstance.GetPrimitiveNumber(
     88                         SVGContentUtils::Y, &mNumberPairAttributes[RADIUS],
     89                         SVGAnimatedNumberPair::eSecond) -
     90                     MORPHOLOGY_EPSILON);
     91 }
     92 
     93 FilterPrimitiveDescription SVGFEMorphologyElement::GetPrimitiveDescription(
     94    SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
     95    const nsTArray<bool>& aInputsAreTainted,
     96    nsTArray<RefPtr<SourceSurface>>& aInputImages) {
     97  int32_t rx, ry;
     98  GetRXY(&rx, &ry, *aInstance);
     99  MorphologyAttributes atts;
    100  atts.mRadii = Size(rx, ry);
    101  atts.mOperator = (uint32_t)mEnumAttributes[OPERATOR].GetAnimValue();
    102  return FilterPrimitiveDescription(AsVariant(std::move(atts)));
    103 }
    104 
    105 bool SVGFEMorphologyElement::AttributeAffectsRendering(
    106    int32_t aNameSpaceID, nsAtom* aAttribute) const {
    107  return SVGFEMorphologyElementBase::AttributeAffectsRendering(aNameSpaceID,
    108                                                               aAttribute) ||
    109         (aNameSpaceID == kNameSpaceID_None &&
    110          (aAttribute == nsGkAtoms::in || aAttribute == nsGkAtoms::radius ||
    111           aAttribute == nsGkAtoms::_operator));
    112 }
    113 
    114 nsresult SVGFEMorphologyElement::BindToTree(BindContext& aCtx,
    115                                            nsINode& aParent) {
    116  if (aCtx.InComposedDoc()) {
    117    aCtx.OwnerDoc().SetUseCounter(eUseCounter_custom_feMorphology);
    118  }
    119 
    120  return SVGFEMorphologyElementBase::BindToTree(aCtx, aParent);
    121 }
    122 
    123 //----------------------------------------------------------------------
    124 // SVGElement methods
    125 
    126 SVGElement::NumberPairAttributesInfo
    127 SVGFEMorphologyElement::GetNumberPairInfo() {
    128  return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
    129                                  std::size(sNumberPairInfo));
    130 }
    131 
    132 SVGElement::EnumAttributesInfo SVGFEMorphologyElement::GetEnumInfo() {
    133  return EnumAttributesInfo(mEnumAttributes, sEnumInfo, std::size(sEnumInfo));
    134 }
    135 
    136 SVGElement::StringAttributesInfo SVGFEMorphologyElement::GetStringInfo() {
    137  return StringAttributesInfo(mStringAttributes, sStringInfo,
    138                              std::size(sStringInfo));
    139 }
    140 
    141 }  // namespace mozilla::dom