зеркало из https://github.com/mozilla/gecko-dev.git
478 строки
16 KiB
C++
478 строки
16 KiB
C++
/* -*- 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 "SVGFilters.h"
|
|
|
|
#include <algorithm>
|
|
#include "DOMSVGAnimatedNumberList.h"
|
|
#include "imgIContainer.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsLayoutUtils.h"
|
|
#include "SVGAnimatedNumberList.h"
|
|
#include "SVGEnum.h"
|
|
#include "nsSVGFilterInstance.h"
|
|
#include "SVGNumberList.h"
|
|
#include "SVGNumberPair.h"
|
|
#include "SVGString.h"
|
|
#include "mozilla/ArrayUtils.h"
|
|
#include "mozilla/ComputedStyle.h"
|
|
#include "mozilla/SVGContentUtils.h"
|
|
#include "nsSVGUtils.h"
|
|
#include "mozilla/dom/SVGAnimatedLength.h"
|
|
#include "mozilla/dom/SVGComponentTransferFunctionElement.h"
|
|
#include "mozilla/dom/SVGElement.h"
|
|
#include "mozilla/dom/SVGFEDistantLightElement.h"
|
|
#include "mozilla/dom/SVGFEFuncAElementBinding.h"
|
|
#include "mozilla/dom/SVGFEFuncBElementBinding.h"
|
|
#include "mozilla/dom/SVGFEFuncGElementBinding.h"
|
|
#include "mozilla/dom/SVGFEFuncRElementBinding.h"
|
|
#include "mozilla/dom/SVGFEPointLightElement.h"
|
|
#include "mozilla/dom/SVGFESpotLightElement.h"
|
|
#include "mozilla/dom/SVGFilterElement.h"
|
|
#include "mozilla/dom/SVGLengthBinding.h"
|
|
|
|
#if defined(XP_WIN)
|
|
// Prevent Windows redefining LoadImage
|
|
#undef LoadImage
|
|
#endif
|
|
|
|
using namespace mozilla::gfx;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
//--------------------Filter Element Base Class-----------------------
|
|
|
|
SVGElement::LengthInfo SVGFE::sLengthInfo[4] = {
|
|
{nsGkAtoms::x, 0, SVGLength_Binding::SVG_LENGTHTYPE_PERCENTAGE,
|
|
SVGContentUtils::X},
|
|
{nsGkAtoms::y, 0, SVGLength_Binding::SVG_LENGTHTYPE_PERCENTAGE,
|
|
SVGContentUtils::Y},
|
|
{nsGkAtoms::width, 100, SVGLength_Binding::SVG_LENGTHTYPE_PERCENTAGE,
|
|
SVGContentUtils::X},
|
|
{nsGkAtoms::height, 100, SVGLength_Binding::SVG_LENGTHTYPE_PERCENTAGE,
|
|
SVGContentUtils::Y}};
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsISupports methods
|
|
|
|
NS_IMPL_ADDREF_INHERITED(SVGFE, SVGFEBase)
|
|
NS_IMPL_RELEASE_INHERITED(SVGFE, SVGFEBase)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(SVGFE)
|
|
NS_INTERFACE_MAP_ENTRY_CONCRETE(SVGFE)
|
|
NS_INTERFACE_MAP_END_INHERITING(SVGFEBase)
|
|
|
|
//----------------------------------------------------------------------
|
|
// Implementation
|
|
|
|
void SVGFE::GetSourceImageNames(nsTArray<SVGStringInfo>& aSources) {}
|
|
|
|
bool SVGFE::OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,
|
|
nsIPrincipal* aReferencePrincipal) {
|
|
// This is the default implementation for OutputIsTainted.
|
|
// Our output is tainted if we have at least one tainted input.
|
|
for (uint32_t i = 0; i < aInputsAreTainted.Length(); i++) {
|
|
if (aInputsAreTainted[i]) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool SVGFE::AttributeAffectsRendering(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute) const {
|
|
return aNameSpaceID == kNameSpaceID_None &&
|
|
(aAttribute == nsGkAtoms::x || aAttribute == nsGkAtoms::y ||
|
|
aAttribute == nsGkAtoms::width || aAttribute == nsGkAtoms::height ||
|
|
aAttribute == nsGkAtoms::result);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength> SVGFE::X() {
|
|
return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength> SVGFE::Y() {
|
|
return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength> SVGFE::Width() {
|
|
return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedLength> SVGFE::Height() {
|
|
return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedString> SVGFE::Result() {
|
|
return GetResultImageName().ToDOMAnimatedString(this);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIContent methods
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
SVGFE::IsAttributeMapped(const nsAtom* name) const {
|
|
static const MappedAttributeEntry* const map[] = {sFiltersMap};
|
|
|
|
return FindAttributeDependence(name, map) ||
|
|
SVGFEBase::IsAttributeMapped(name);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// SVGElement methods
|
|
|
|
bool SVGFE::StyleIsSetToSRGB() {
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) return false;
|
|
|
|
ComputedStyle* style = frame->Style();
|
|
return style->StyleSVG()->mColorInterpolationFilters ==
|
|
NS_STYLE_COLOR_INTERPOLATION_SRGB;
|
|
}
|
|
|
|
/* virtual */ bool SVGFE::HasValidDimensions() const {
|
|
return (!mLengthAttributes[ATTR_WIDTH].IsExplicitlySet() ||
|
|
mLengthAttributes[ATTR_WIDTH].GetAnimValInSpecifiedUnits() > 0) &&
|
|
(!mLengthAttributes[ATTR_HEIGHT].IsExplicitlySet() ||
|
|
mLengthAttributes[ATTR_HEIGHT].GetAnimValInSpecifiedUnits() > 0);
|
|
}
|
|
|
|
Size SVGFE::GetKernelUnitLength(nsSVGFilterInstance* aInstance,
|
|
SVGNumberPair* aKernelUnitLength) {
|
|
if (!aKernelUnitLength->IsExplicitlySet()) {
|
|
return Size(1, 1);
|
|
}
|
|
|
|
float kernelX = aInstance->GetPrimitiveNumber(
|
|
SVGContentUtils::X, aKernelUnitLength, SVGNumberPair::eFirst);
|
|
float kernelY = aInstance->GetPrimitiveNumber(
|
|
SVGContentUtils::Y, aKernelUnitLength, SVGNumberPair::eSecond);
|
|
return Size(kernelX, kernelY);
|
|
}
|
|
|
|
SVGElement::LengthAttributesInfo SVGFE::GetLengthInfo() {
|
|
return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
|
|
ArrayLength(sLengthInfo));
|
|
}
|
|
|
|
SVGElement::NumberListInfo
|
|
SVGComponentTransferFunctionElement::sNumberListInfo[1] = {
|
|
{nsGkAtoms::tableValues}};
|
|
|
|
SVGElement::NumberInfo SVGComponentTransferFunctionElement::sNumberInfo[5] = {
|
|
{nsGkAtoms::slope, 1, false},
|
|
{nsGkAtoms::intercept, 0, false},
|
|
{nsGkAtoms::amplitude, 1, false},
|
|
{nsGkAtoms::exponent, 1, false},
|
|
{nsGkAtoms::offset, 0, false}};
|
|
|
|
SVGEnumMapping SVGComponentTransferFunctionElement::sTypeMap[] = {
|
|
{nsGkAtoms::identity, SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY},
|
|
{nsGkAtoms::table, SVG_FECOMPONENTTRANSFER_TYPE_TABLE},
|
|
{nsGkAtoms::discrete, SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE},
|
|
{nsGkAtoms::linear, SVG_FECOMPONENTTRANSFER_TYPE_LINEAR},
|
|
{nsGkAtoms::gamma, SVG_FECOMPONENTTRANSFER_TYPE_GAMMA},
|
|
{nullptr, 0}};
|
|
|
|
SVGElement::EnumInfo SVGComponentTransferFunctionElement::sEnumInfo[1] = {
|
|
{nsGkAtoms::type, sTypeMap, SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY}};
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsISupports methods
|
|
|
|
NS_IMPL_ADDREF_INHERITED(SVGComponentTransferFunctionElement,
|
|
SVGComponentTransferFunctionElementBase)
|
|
NS_IMPL_RELEASE_INHERITED(SVGComponentTransferFunctionElement,
|
|
SVGComponentTransferFunctionElementBase)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(SVGComponentTransferFunctionElement)
|
|
NS_INTERFACE_MAP_ENTRY_CONCRETE(SVGComponentTransferFunctionElement)
|
|
NS_INTERFACE_MAP_END_INHERITING(SVGComponentTransferFunctionElementBase)
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsFEUnstyledElement methods
|
|
|
|
bool SVGComponentTransferFunctionElement::AttributeAffectsRendering(
|
|
int32_t aNameSpaceID, nsAtom* aAttribute) const {
|
|
return aNameSpaceID == kNameSpaceID_None &&
|
|
(aAttribute == nsGkAtoms::tableValues ||
|
|
aAttribute == nsGkAtoms::slope ||
|
|
aAttribute == nsGkAtoms::intercept ||
|
|
aAttribute == nsGkAtoms::amplitude ||
|
|
aAttribute == nsGkAtoms::exponent ||
|
|
aAttribute == nsGkAtoms::offset || aAttribute == nsGkAtoms::type);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
already_AddRefed<SVGAnimatedEnumeration>
|
|
SVGComponentTransferFunctionElement::Type() {
|
|
return mEnumAttributes[TYPE].ToDOMAnimatedEnum(this);
|
|
}
|
|
|
|
already_AddRefed<DOMSVGAnimatedNumberList>
|
|
SVGComponentTransferFunctionElement::TableValues() {
|
|
return DOMSVGAnimatedNumberList::GetDOMWrapper(
|
|
&mNumberListAttributes[TABLEVALUES], this, TABLEVALUES);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedNumber>
|
|
SVGComponentTransferFunctionElement::Slope() {
|
|
return mNumberAttributes[SLOPE].ToDOMAnimatedNumber(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedNumber>
|
|
SVGComponentTransferFunctionElement::Intercept() {
|
|
return mNumberAttributes[INTERCEPT].ToDOMAnimatedNumber(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedNumber>
|
|
SVGComponentTransferFunctionElement::Amplitude() {
|
|
return mNumberAttributes[AMPLITUDE].ToDOMAnimatedNumber(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedNumber>
|
|
SVGComponentTransferFunctionElement::Exponent() {
|
|
return mNumberAttributes[EXPONENT].ToDOMAnimatedNumber(this);
|
|
}
|
|
|
|
already_AddRefed<SVGAnimatedNumber>
|
|
SVGComponentTransferFunctionElement::Offset() {
|
|
return mNumberAttributes[OFFSET].ToDOMAnimatedNumber(this);
|
|
}
|
|
|
|
void SVGComponentTransferFunctionElement::ComputeAttributes(
|
|
int32_t aChannel, ComponentTransferAttributes& aAttributes) {
|
|
uint32_t type = mEnumAttributes[TYPE].GetAnimValue();
|
|
|
|
float slope, intercept, amplitude, exponent, offset;
|
|
GetAnimatedNumberValues(&slope, &intercept, &litude, &exponent, &offset,
|
|
nullptr);
|
|
|
|
const SVGNumberList& tableValues =
|
|
mNumberListAttributes[TABLEVALUES].GetAnimValue();
|
|
|
|
aAttributes.mTypes[aChannel] = (uint8_t)type;
|
|
switch (type) {
|
|
case SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: {
|
|
aAttributes.mValues[aChannel].SetLength(2);
|
|
aAttributes.mValues[aChannel][kComponentTransferSlopeIndex] = slope;
|
|
aAttributes.mValues[aChannel][kComponentTransferInterceptIndex] =
|
|
intercept;
|
|
break;
|
|
}
|
|
case SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: {
|
|
aAttributes.mValues[aChannel].SetLength(3);
|
|
aAttributes.mValues[aChannel][kComponentTransferAmplitudeIndex] =
|
|
amplitude;
|
|
aAttributes.mValues[aChannel][kComponentTransferExponentIndex] = exponent;
|
|
aAttributes.mValues[aChannel][kComponentTransferOffsetIndex] = offset;
|
|
break;
|
|
}
|
|
case SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE:
|
|
case SVG_FECOMPONENTTRANSFER_TYPE_TABLE: {
|
|
if (!tableValues.IsEmpty()) {
|
|
aAttributes.mValues[aChannel].AppendElements(&tableValues[0],
|
|
tableValues.Length());
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// SVGElement methods
|
|
|
|
SVGElement::NumberListAttributesInfo
|
|
SVGComponentTransferFunctionElement::GetNumberListInfo() {
|
|
return NumberListAttributesInfo(mNumberListAttributes, sNumberListInfo,
|
|
ArrayLength(sNumberListInfo));
|
|
}
|
|
|
|
SVGElement::EnumAttributesInfo
|
|
SVGComponentTransferFunctionElement::GetEnumInfo() {
|
|
return EnumAttributesInfo(mEnumAttributes, sEnumInfo, ArrayLength(sEnumInfo));
|
|
}
|
|
|
|
SVGElement::NumberAttributesInfo
|
|
SVGComponentTransferFunctionElement::GetNumberInfo() {
|
|
return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
|
|
ArrayLength(sNumberInfo));
|
|
}
|
|
|
|
/* virtual */ JSObject* SVGFEFuncRElement::WrapNode(
|
|
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
|
|
return SVGFEFuncRElement_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
NS_IMPL_NS_NEW_SVG_ELEMENT(FEFuncR)
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncRElement)
|
|
|
|
/* virtual */ JSObject* SVGFEFuncGElement::WrapNode(
|
|
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
|
|
return SVGFEFuncGElement_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
NS_IMPL_NS_NEW_SVG_ELEMENT(FEFuncG)
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncGElement)
|
|
|
|
/* virtual */ JSObject* SVGFEFuncBElement::WrapNode(
|
|
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
|
|
return SVGFEFuncBElement_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
NS_IMPL_NS_NEW_SVG_ELEMENT(FEFuncB)
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncBElement)
|
|
|
|
/* virtual */ JSObject* SVGFEFuncAElement::WrapNode(
|
|
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
|
|
return SVGFEFuncAElement_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
NS_IMPL_NS_NEW_SVG_ELEMENT(FEFuncA)
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEFuncAElement)
|
|
|
|
//--------------------------------------------------------------------
|
|
//
|
|
SVGElement::NumberInfo SVGFELightingElement::sNumberInfo[4] = {
|
|
{nsGkAtoms::surfaceScale, 1, false},
|
|
{nsGkAtoms::diffuseConstant, 1, false},
|
|
{nsGkAtoms::specularConstant, 1, false},
|
|
{nsGkAtoms::specularExponent, 1, false}};
|
|
|
|
SVGElement::NumberPairInfo SVGFELightingElement::sNumberPairInfo[1] = {
|
|
{nsGkAtoms::kernelUnitLength, 0, 0}};
|
|
|
|
SVGElement::StringInfo SVGFELightingElement::sStringInfo[2] = {
|
|
{nsGkAtoms::result, kNameSpaceID_None, true},
|
|
{nsGkAtoms::in, kNameSpaceID_None, true}};
|
|
|
|
//----------------------------------------------------------------------
|
|
// Implementation
|
|
|
|
NS_IMETHODIMP_(bool)
|
|
SVGFELightingElement::IsAttributeMapped(const nsAtom* name) const {
|
|
static const MappedAttributeEntry* const map[] = {sColorMap,
|
|
sLightingEffectsMap};
|
|
|
|
return FindAttributeDependence(name, map) ||
|
|
SVGFELightingElementBase::IsAttributeMapped(name);
|
|
}
|
|
|
|
void SVGFELightingElement::GetSourceImageNames(
|
|
nsTArray<SVGStringInfo>& aSources) {
|
|
aSources.AppendElement(SVGStringInfo(&mStringAttributes[IN1], this));
|
|
}
|
|
|
|
LightType SVGFELightingElement::ComputeLightAttributes(
|
|
nsSVGFilterInstance* aInstance, nsTArray<float>& aFloatAttributes) {
|
|
// find specified light
|
|
for (nsCOMPtr<nsIContent> child = nsINode::GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
if (child->IsAnyOfSVGElements(nsGkAtoms::feDistantLight,
|
|
nsGkAtoms::fePointLight,
|
|
nsGkAtoms::feSpotLight)) {
|
|
return static_cast<SVGFELightElement*>(child.get())
|
|
->ComputeLightAttributes(aInstance, aFloatAttributes);
|
|
}
|
|
}
|
|
|
|
return LightType::None;
|
|
}
|
|
|
|
bool SVGFELightingElement::AddLightingAttributes(
|
|
mozilla::gfx::DiffuseLightingAttributes* aAttributes,
|
|
nsSVGFilterInstance* aInstance) {
|
|
nsIFrame* frame = GetPrimaryFrame();
|
|
if (!frame) {
|
|
return false;
|
|
}
|
|
|
|
const nsStyleSVGReset* styleSVGReset = frame->Style()->StyleSVGReset();
|
|
Color color(Color::FromABGR(styleSVGReset->mLightingColor.CalcColor(frame)));
|
|
color.a = 1.f;
|
|
float surfaceScale = mNumberAttributes[SURFACE_SCALE].GetAnimValue();
|
|
Size kernelUnitLength = GetKernelUnitLength(
|
|
aInstance, &mNumberPairAttributes[KERNEL_UNIT_LENGTH]);
|
|
|
|
if (kernelUnitLength.width <= 0 || kernelUnitLength.height <= 0) {
|
|
// According to spec, A negative or zero value is an error. See link below
|
|
// for details.
|
|
// https://www.w3.org/TR/SVG/filters.html#feSpecularLightingKernelUnitLengthAttribute
|
|
return false;
|
|
}
|
|
|
|
aAttributes->mLightType =
|
|
ComputeLightAttributes(aInstance, aAttributes->mLightValues);
|
|
aAttributes->mSurfaceScale = surfaceScale;
|
|
aAttributes->mKernelUnitLength = kernelUnitLength;
|
|
aAttributes->mColor = color;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SVGFELightingElement::AttributeAffectsRendering(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute) const {
|
|
return SVGFELightingElementBase::AttributeAffectsRendering(aNameSpaceID,
|
|
aAttribute) ||
|
|
(aNameSpaceID == kNameSpaceID_None &&
|
|
(aAttribute == nsGkAtoms::in ||
|
|
aAttribute == nsGkAtoms::surfaceScale ||
|
|
aAttribute == nsGkAtoms::kernelUnitLength));
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// SVGElement methods
|
|
|
|
SVGElement::NumberAttributesInfo SVGFELightingElement::GetNumberInfo() {
|
|
return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
|
|
ArrayLength(sNumberInfo));
|
|
}
|
|
|
|
SVGElement::NumberPairAttributesInfo SVGFELightingElement::GetNumberPairInfo() {
|
|
return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
|
|
ArrayLength(sNumberPairInfo));
|
|
}
|
|
|
|
SVGElement::StringAttributesInfo SVGFELightingElement::GetStringInfo() {
|
|
return StringAttributesInfo(mStringAttributes, sStringInfo,
|
|
ArrayLength(sStringInfo));
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|