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/* -*- 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
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