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Diffstat (limited to 'dom/svg/SVGFETurbulenceElement.cpp')
| -rw-r--r-- | dom/svg/SVGFETurbulenceElement.cpp | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/dom/svg/SVGFETurbulenceElement.cpp b/dom/svg/SVGFETurbulenceElement.cpp new file mode 100644 index 000000000..908e73506 --- /dev/null +++ b/dom/svg/SVGFETurbulenceElement.cpp @@ -0,0 +1,211 @@ +/* -*- 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/dom/SVGFETurbulenceElement.h" +#include "mozilla/dom/SVGFETurbulenceElementBinding.h" +#include "nsSVGFilterInstance.h" +#include "nsSVGUtils.h" + +NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FETurbulence) + +using namespace mozilla::gfx; + +namespace mozilla { +namespace dom { + +// Stitch Options +static const unsigned short SVG_STITCHTYPE_STITCH = 1; +static const unsigned short SVG_STITCHTYPE_NOSTITCH = 2; + +static const int32_t MAX_OCTAVES = 10; + +JSObject* +SVGFETurbulenceElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) +{ + return SVGFETurbulenceElementBinding::Wrap(aCx, this, aGivenProto); +} + +nsSVGElement::NumberInfo SVGFETurbulenceElement::sNumberInfo[1] = +{ + { &nsGkAtoms::seed, 0, false } +}; + +nsSVGElement::NumberPairInfo SVGFETurbulenceElement::sNumberPairInfo[1] = +{ + { &nsGkAtoms::baseFrequency, 0, 0 } +}; + +nsSVGElement::IntegerInfo SVGFETurbulenceElement::sIntegerInfo[1] = +{ + { &nsGkAtoms::numOctaves, 1 } +}; + +nsSVGEnumMapping SVGFETurbulenceElement::sTypeMap[] = { + {&nsGkAtoms::fractalNoise, + SVG_TURBULENCE_TYPE_FRACTALNOISE}, + {&nsGkAtoms::turbulence, + SVG_TURBULENCE_TYPE_TURBULENCE}, + {nullptr, 0} +}; + +nsSVGEnumMapping SVGFETurbulenceElement::sStitchTilesMap[] = { + {&nsGkAtoms::stitch, + SVG_STITCHTYPE_STITCH}, + {&nsGkAtoms::noStitch, + SVG_STITCHTYPE_NOSTITCH}, + {nullptr, 0} +}; + +nsSVGElement::EnumInfo SVGFETurbulenceElement::sEnumInfo[2] = +{ + { &nsGkAtoms::type, + sTypeMap, + SVG_TURBULENCE_TYPE_TURBULENCE + }, + { &nsGkAtoms::stitchTiles, + sStitchTilesMap, + SVG_STITCHTYPE_NOSTITCH + } +}; + +nsSVGElement::StringInfo SVGFETurbulenceElement::sStringInfo[1] = +{ + { &nsGkAtoms::result, kNameSpaceID_None, true } +}; + +//---------------------------------------------------------------------- +// nsIDOMNode methods + +NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFETurbulenceElement) + +//---------------------------------------------------------------------- + +already_AddRefed<SVGAnimatedNumber> +SVGFETurbulenceElement::BaseFrequencyX() +{ + return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eFirst, this); +} + +already_AddRefed<SVGAnimatedNumber> +SVGFETurbulenceElement::BaseFrequencyY() +{ + return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eSecond, this); +} + +already_AddRefed<SVGAnimatedInteger> +SVGFETurbulenceElement::NumOctaves() +{ + return mIntegerAttributes[OCTAVES].ToDOMAnimatedInteger(this); +} + +already_AddRefed<SVGAnimatedNumber> +SVGFETurbulenceElement::Seed() +{ + return mNumberAttributes[SEED].ToDOMAnimatedNumber(this); +} + +already_AddRefed<SVGAnimatedEnumeration> +SVGFETurbulenceElement::StitchTiles() +{ + return mEnumAttributes[STITCHTILES].ToDOMAnimatedEnum(this); +} + +already_AddRefed<SVGAnimatedEnumeration> +SVGFETurbulenceElement::Type() +{ + return mEnumAttributes[TYPE].ToDOMAnimatedEnum(this); +} + +FilterPrimitiveDescription +SVGFETurbulenceElement::GetPrimitiveDescription(nsSVGFilterInstance* aInstance, + const IntRect& aFilterSubregion, + const nsTArray<bool>& aInputsAreTainted, + nsTArray<RefPtr<SourceSurface>>& aInputImages) +{ + float fX = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eFirst); + float fY = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eSecond); + float seed = mNumberAttributes[OCTAVES].GetAnimValue(); + uint32_t octaves = clamped(mIntegerAttributes[OCTAVES].GetAnimValue(), 0, MAX_OCTAVES); + uint32_t type = mEnumAttributes[TYPE].GetAnimValue(); + uint16_t stitch = mEnumAttributes[STITCHTILES].GetAnimValue(); + + if (fX == 0 || fY == 0) { + return FilterPrimitiveDescription(PrimitiveType::Empty); + } + + // We interpret the base frequency as relative to user space units. In other + // words, we consider one turbulence base period to be 1 / fX user space + // units wide and 1 / fY user space units high. We do not scale the frequency + // depending on the filter primitive region. + gfxRect firstPeriodInUserSpace(0, 0, 1 / fX, 1 / fY); + gfxRect firstPeriodInFilterSpace = aInstance->UserSpaceToFilterSpace(firstPeriodInUserSpace); + Size frequencyInFilterSpace(1 / firstPeriodInFilterSpace.width, + 1 / firstPeriodInFilterSpace.height); + gfxPoint offset = firstPeriodInFilterSpace.TopLeft(); + + FilterPrimitiveDescription descr(PrimitiveType::Turbulence); + descr.Attributes().Set(eTurbulenceOffset, IntPoint::Truncate(offset.x, offset.y)); + descr.Attributes().Set(eTurbulenceBaseFrequency, frequencyInFilterSpace); + descr.Attributes().Set(eTurbulenceSeed, seed); + descr.Attributes().Set(eTurbulenceNumOctaves, octaves); + descr.Attributes().Set(eTurbulenceStitchable, stitch == SVG_STITCHTYPE_STITCH); + descr.Attributes().Set(eTurbulenceType, type); + return descr; +} + +bool +SVGFETurbulenceElement::AttributeAffectsRendering(int32_t aNameSpaceID, + nsIAtom* aAttribute) const +{ + return SVGFETurbulenceElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) || + (aNameSpaceID == kNameSpaceID_None && + (aAttribute == nsGkAtoms::seed || + aAttribute == nsGkAtoms::baseFrequency || + aAttribute == nsGkAtoms::numOctaves || + aAttribute == nsGkAtoms::type || + aAttribute == nsGkAtoms::stitchTiles)); +} + +//---------------------------------------------------------------------- +// nsSVGElement methods + +nsSVGElement::NumberAttributesInfo +SVGFETurbulenceElement::GetNumberInfo() +{ + return NumberAttributesInfo(mNumberAttributes, sNumberInfo, + ArrayLength(sNumberInfo)); +} + +nsSVGElement::NumberPairAttributesInfo +SVGFETurbulenceElement::GetNumberPairInfo() +{ + return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo, + ArrayLength(sNumberPairInfo)); +} + +nsSVGElement::IntegerAttributesInfo +SVGFETurbulenceElement::GetIntegerInfo() +{ + return IntegerAttributesInfo(mIntegerAttributes, sIntegerInfo, + ArrayLength(sIntegerInfo)); +} + +nsSVGElement::EnumAttributesInfo +SVGFETurbulenceElement::GetEnumInfo() +{ + return EnumAttributesInfo(mEnumAttributes, sEnumInfo, + ArrayLength(sEnumInfo)); +} + +nsSVGElement::StringAttributesInfo +SVGFETurbulenceElement::GetStringInfo() +{ + return StringAttributesInfo(mStringAttributes, sStringInfo, + ArrayLength(sStringInfo)); +} + +} // namespace dom +} // namespace mozilla |