mirror of
https://github.com/classilla/tenfourfox.git
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212 lines
6.7 KiB
C++
212 lines
6.7 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/SVGFETurbulenceElement.h"
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#include "mozilla/dom/SVGFETurbulenceElementBinding.h"
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#include "nsSVGFilterInstance.h"
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#include "nsSVGUtils.h"
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NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FETurbulence)
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace dom {
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// Stitch Options
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static const unsigned short SVG_STITCHTYPE_STITCH = 1;
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static const unsigned short SVG_STITCHTYPE_NOSTITCH = 2;
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static const int32_t MAX_OCTAVES = 10;
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JSObject*
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SVGFETurbulenceElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return SVGFETurbulenceElementBinding::Wrap(aCx, this, aGivenProto);
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}
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nsSVGElement::NumberInfo SVGFETurbulenceElement::sNumberInfo[1] =
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{
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{ &nsGkAtoms::seed, 0, false }
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};
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nsSVGElement::NumberPairInfo SVGFETurbulenceElement::sNumberPairInfo[1] =
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{
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{ &nsGkAtoms::baseFrequency, 0, 0 }
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};
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nsSVGElement::IntegerInfo SVGFETurbulenceElement::sIntegerInfo[1] =
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{
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{ &nsGkAtoms::numOctaves, 1 }
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};
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nsSVGEnumMapping SVGFETurbulenceElement::sTypeMap[] = {
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{&nsGkAtoms::fractalNoise,
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SVG_TURBULENCE_TYPE_FRACTALNOISE},
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{&nsGkAtoms::turbulence,
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SVG_TURBULENCE_TYPE_TURBULENCE},
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{nullptr, 0}
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};
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nsSVGEnumMapping SVGFETurbulenceElement::sStitchTilesMap[] = {
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{&nsGkAtoms::stitch,
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SVG_STITCHTYPE_STITCH},
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{&nsGkAtoms::noStitch,
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SVG_STITCHTYPE_NOSTITCH},
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{nullptr, 0}
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};
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nsSVGElement::EnumInfo SVGFETurbulenceElement::sEnumInfo[2] =
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{
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{ &nsGkAtoms::type,
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sTypeMap,
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SVG_TURBULENCE_TYPE_TURBULENCE
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},
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{ &nsGkAtoms::stitchTiles,
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sStitchTilesMap,
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SVG_STITCHTYPE_NOSTITCH
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}
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};
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nsSVGElement::StringInfo SVGFETurbulenceElement::sStringInfo[1] =
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{
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{ &nsGkAtoms::result, kNameSpaceID_None, true }
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};
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//----------------------------------------------------------------------
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// nsIDOMNode methods
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NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFETurbulenceElement)
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//----------------------------------------------------------------------
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already_AddRefed<SVGAnimatedNumber>
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SVGFETurbulenceElement::BaseFrequencyX()
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{
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return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eFirst, this);
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}
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already_AddRefed<SVGAnimatedNumber>
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SVGFETurbulenceElement::BaseFrequencyY()
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{
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return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eSecond, this);
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}
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already_AddRefed<SVGAnimatedInteger>
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SVGFETurbulenceElement::NumOctaves()
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{
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return mIntegerAttributes[OCTAVES].ToDOMAnimatedInteger(this);
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}
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already_AddRefed<SVGAnimatedNumber>
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SVGFETurbulenceElement::Seed()
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{
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return mNumberAttributes[SEED].ToDOMAnimatedNumber(this);
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}
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already_AddRefed<SVGAnimatedEnumeration>
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SVGFETurbulenceElement::StitchTiles()
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{
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return mEnumAttributes[STITCHTILES].ToDOMAnimatedEnum(this);
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}
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already_AddRefed<SVGAnimatedEnumeration>
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SVGFETurbulenceElement::Type()
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{
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return mEnumAttributes[TYPE].ToDOMAnimatedEnum(this);
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}
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FilterPrimitiveDescription
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SVGFETurbulenceElement::GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
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const IntRect& aFilterSubregion,
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const nsTArray<bool>& aInputsAreTainted,
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nsTArray<RefPtr<SourceSurface>>& aInputImages)
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{
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float fX = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eFirst);
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float fY = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eSecond);
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float seed = mNumberAttributes[OCTAVES].GetAnimValue();
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uint32_t octaves = clamped(mIntegerAttributes[OCTAVES].GetAnimValue(), 0, MAX_OCTAVES);
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uint32_t type = mEnumAttributes[TYPE].GetAnimValue();
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uint16_t stitch = mEnumAttributes[STITCHTILES].GetAnimValue();
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if (fX == 0 || fY == 0) {
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return FilterPrimitiveDescription(PrimitiveType::Empty);
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}
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// We interpret the base frequency as relative to user space units. In other
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// words, we consider one turbulence base period to be 1 / fX user space
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// units wide and 1 / fY user space units high. We do not scale the frequency
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// depending on the filter primitive region.
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gfxRect firstPeriodInUserSpace(0, 0, 1 / fX, 1 / fY);
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gfxRect firstPeriodInFilterSpace = aInstance->UserSpaceToFilterSpace(firstPeriodInUserSpace);
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Size frequencyInFilterSpace(1 / firstPeriodInFilterSpace.width,
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1 / firstPeriodInFilterSpace.height);
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gfxPoint offset = firstPeriodInFilterSpace.TopLeft();
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FilterPrimitiveDescription descr(PrimitiveType::Turbulence);
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descr.Attributes().Set(eTurbulenceOffset, IntPoint(offset.x, offset.y));
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descr.Attributes().Set(eTurbulenceBaseFrequency, frequencyInFilterSpace);
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descr.Attributes().Set(eTurbulenceSeed, seed);
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descr.Attributes().Set(eTurbulenceNumOctaves, octaves);
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descr.Attributes().Set(eTurbulenceStitchable, stitch == SVG_STITCHTYPE_STITCH);
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descr.Attributes().Set(eTurbulenceType, type);
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return descr;
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}
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bool
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SVGFETurbulenceElement::AttributeAffectsRendering(int32_t aNameSpaceID,
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nsIAtom* aAttribute) const
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{
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return SVGFETurbulenceElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) ||
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(aNameSpaceID == kNameSpaceID_None &&
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(aAttribute == nsGkAtoms::seed ||
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aAttribute == nsGkAtoms::baseFrequency ||
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aAttribute == nsGkAtoms::numOctaves ||
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aAttribute == nsGkAtoms::type ||
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aAttribute == nsGkAtoms::stitchTiles));
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}
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//----------------------------------------------------------------------
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// nsSVGElement methods
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nsSVGElement::NumberAttributesInfo
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SVGFETurbulenceElement::GetNumberInfo()
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{
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return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
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ArrayLength(sNumberInfo));
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}
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nsSVGElement::NumberPairAttributesInfo
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SVGFETurbulenceElement::GetNumberPairInfo()
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{
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return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
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ArrayLength(sNumberPairInfo));
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}
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nsSVGElement::IntegerAttributesInfo
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SVGFETurbulenceElement::GetIntegerInfo()
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{
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return IntegerAttributesInfo(mIntegerAttributes, sIntegerInfo,
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ArrayLength(sIntegerInfo));
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}
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nsSVGElement::EnumAttributesInfo
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SVGFETurbulenceElement::GetEnumInfo()
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{
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return EnumAttributesInfo(mEnumAttributes, sEnumInfo,
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ArrayLength(sEnumInfo));
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}
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nsSVGElement::StringAttributesInfo
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SVGFETurbulenceElement::GetStringInfo()
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{
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return StringAttributesInfo(mStringAttributes, sStringInfo,
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ArrayLength(sStringInfo));
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}
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} // namespace dom
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} // namespace mozilla
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