dom/svg/SVGFEGaussianBlurElement.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/SVGFEGaussianBlurElement.h"
   8 #include "mozilla/dom/SVGFEGaussianBlurElementBinding.h"
   9 #include "mozilla/SVGFilterInstance.h"
  10
  11 NS_IMPL_NS_NEW_SVG_ELEMENT(FEGaussianBlur)
  12
  13 using namespace mozilla::gfx;
  14
  15 namespace mozilla {
  16 namespace dom {
  17
  18 JSObject* SVGFEGaussianBlurElement::WrapNode(
  19     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  20   return SVGFEGaussianBlurElement_Binding::Wrap(aCx, this, aGivenProto);
  21 }
  22
  23 SVGElement::NumberPairInfo SVGFEGaussianBlurElement::sNumberPairInfo[1] = {
  24     {nsGkAtoms::stdDeviation, 0, 0}};
  25
  26 SVGElement::StringInfo SVGFEGaussianBlurElement::sStringInfo[2] = {
  27     {nsGkAtoms::result, kNameSpaceID_None, true},
  28     {nsGkAtoms::in, kNameSpaceID_None, true}};
  29
  30 //----------------------------------------------------------------------
  31 // nsINode methods
  32
  33 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEGaussianBlurElement)
  34
  35 //----------------------------------------------------------------------
  36
  37 already_AddRefed<DOMSVGAnimatedString> SVGFEGaussianBlurElement::In1() {
  38   return mStringAttributes[IN1].ToDOMAnimatedString(this);
  39 }
  40
  41 already_AddRefed<DOMSVGAnimatedNumber>
  42 SVGFEGaussianBlurElement::StdDeviationX() {
  43   return mNumberPairAttributes[STD_DEV].ToDOMAnimatedNumber(
  44       SVGAnimatedNumberPair::eFirst, this);
  45 }
  46
  47 already_AddRefed<DOMSVGAnimatedNumber>
  48 SVGFEGaussianBlurElement::StdDeviationY() {
  49   return mNumberPairAttributes[STD_DEV].ToDOMAnimatedNumber(
  50       SVGAnimatedNumberPair::eSecond, this);
  51 }
  52
  53 void SVGFEGaussianBlurElement::SetStdDeviation(float stdDeviationX,
  54                                                float stdDeviationY) {
  55   mNumberPairAttributes[STD_DEV].SetBaseValues(stdDeviationX, stdDeviationY,
  56                                                this);
  57 }
  58
  59 FilterPrimitiveDescription SVGFEGaussianBlurElement::GetPrimitiveDescription(
  60     SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
  61     const nsTArray<bool>& aInputsAreTainted,
  62     nsTArray<RefPtr<SourceSurface>>& aInputImages) {
  63   float stdX = aInstance->GetPrimitiveNumber(SVGContentUtils::X,
  64                                              &mNumberPairAttributes[STD_DEV],
  65                                              SVGAnimatedNumberPair::eFirst);
  66   float stdY = aInstance->GetPrimitiveNumber(SVGContentUtils::Y,
  67                                              &mNumberPairAttributes[STD_DEV],
  68                                              SVGAnimatedNumberPair::eSecond);
  69   if (stdX < 0 || stdY < 0) {
  70     return FilterPrimitiveDescription();
  71   }
  72
  73   GaussianBlurAttributes atts;
  74   atts.mStdDeviation = Size(stdX, stdY);
  75   return FilterPrimitiveDescription(AsVariant(std::move(atts)));
  76 }
  77
  78 bool SVGFEGaussianBlurElement::AttributeAffectsRendering(
  79     int32_t aNameSpaceID, nsAtom* aAttribute) const {
  80   return SVGFEGaussianBlurElementBase::AttributeAffectsRendering(aNameSpaceID,
  81                                                                  aAttribute) ||
  82          (aNameSpaceID == kNameSpaceID_None &&
  83           (aAttribute == nsGkAtoms::in ||
  84            aAttribute == nsGkAtoms::stdDeviation));
  85 }
  86
  87 void SVGFEGaussianBlurElement::GetSourceImageNames(
  88     nsTArray<SVGStringInfo>& aSources) {
  89   aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
  90 }
  91
  92 //----------------------------------------------------------------------
  93 // SVGElement methods
  94
  95 SVGElement::NumberPairAttributesInfo
  96 SVGFEGaussianBlurElement::GetNumberPairInfo() {
  97   return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
  98                                   ArrayLength(sNumberPairInfo));
  99 }
 100
 101 SVGElement::StringAttributesInfo SVGFEGaussianBlurElement::GetStringInfo() {
 102   return StringAttributesInfo(mStringAttributes, sStringInfo,
 103                               ArrayLength(sStringInfo));
 104 }
 105
 106 }  // namespace dom
 107 }  // namespace mozilla