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/SVGFETurbulenceElement.h"
8 #include "mozilla/dom/SVGFETurbulenceElementBinding.h"
9 #include "nsSVGFilterInstance.h"
10 #include "nsSVGUtils.h"
11
12 NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(FETurbulence)
13
14 using namespace mozilla::gfx;
15
16 namespace mozilla {
17 namespace dom {
18
19 // Stitch Options
20 static const unsigned short SVG_STITCHTYPE_STITCH = 1;
21 static const unsigned short SVG_STITCHTYPE_NOSTITCH = 2;
22
23 static const int32_t MAX_OCTAVES = 10;
24
25 JSObject*
WrapNode(JSContext * aCx,JS::Handle<JSObject * > aGivenProto)26 SVGFETurbulenceElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
27 {
28 return SVGFETurbulenceElementBinding::Wrap(aCx, this, aGivenProto);
29 }
30
31 nsSVGElement::NumberInfo SVGFETurbulenceElement::sNumberInfo[1] =
32 {
33 { &nsGkAtoms::seed, 0, false }
34 };
35
36 nsSVGElement::NumberPairInfo SVGFETurbulenceElement::sNumberPairInfo[1] =
37 {
38 { &nsGkAtoms::baseFrequency, 0, 0 }
39 };
40
41 nsSVGElement::IntegerInfo SVGFETurbulenceElement::sIntegerInfo[1] =
42 {
43 { &nsGkAtoms::numOctaves, 1 }
44 };
45
46 nsSVGEnumMapping SVGFETurbulenceElement::sTypeMap[] = {
47 {&nsGkAtoms::fractalNoise,
48 SVG_TURBULENCE_TYPE_FRACTALNOISE},
49 {&nsGkAtoms::turbulence,
50 SVG_TURBULENCE_TYPE_TURBULENCE},
51 {nullptr, 0}
52 };
53
54 nsSVGEnumMapping SVGFETurbulenceElement::sStitchTilesMap[] = {
55 {&nsGkAtoms::stitch,
56 SVG_STITCHTYPE_STITCH},
57 {&nsGkAtoms::noStitch,
58 SVG_STITCHTYPE_NOSTITCH},
59 {nullptr, 0}
60 };
61
62 nsSVGElement::EnumInfo SVGFETurbulenceElement::sEnumInfo[2] =
63 {
64 { &nsGkAtoms::type,
65 sTypeMap,
66 SVG_TURBULENCE_TYPE_TURBULENCE
67 },
68 { &nsGkAtoms::stitchTiles,
69 sStitchTilesMap,
70 SVG_STITCHTYPE_NOSTITCH
71 }
72 };
73
74 nsSVGElement::StringInfo SVGFETurbulenceElement::sStringInfo[1] =
75 {
76 { &nsGkAtoms::result, kNameSpaceID_None, true }
77 };
78
79 //----------------------------------------------------------------------
80 // nsIDOMNode methods
81
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFETurbulenceElement)82 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFETurbulenceElement)
83
84 //----------------------------------------------------------------------
85
86 already_AddRefed<SVGAnimatedNumber>
87 SVGFETurbulenceElement::BaseFrequencyX()
88 {
89 return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eFirst, this);
90 }
91
92 already_AddRefed<SVGAnimatedNumber>
BaseFrequencyY()93 SVGFETurbulenceElement::BaseFrequencyY()
94 {
95 return mNumberPairAttributes[BASE_FREQ].ToDOMAnimatedNumber(nsSVGNumberPair::eSecond, this);
96 }
97
98 already_AddRefed<SVGAnimatedInteger>
NumOctaves()99 SVGFETurbulenceElement::NumOctaves()
100 {
101 return mIntegerAttributes[OCTAVES].ToDOMAnimatedInteger(this);
102 }
103
104 already_AddRefed<SVGAnimatedNumber>
Seed()105 SVGFETurbulenceElement::Seed()
106 {
107 return mNumberAttributes[SEED].ToDOMAnimatedNumber(this);
108 }
109
110 already_AddRefed<SVGAnimatedEnumeration>
StitchTiles()111 SVGFETurbulenceElement::StitchTiles()
112 {
113 return mEnumAttributes[STITCHTILES].ToDOMAnimatedEnum(this);
114 }
115
116 already_AddRefed<SVGAnimatedEnumeration>
Type()117 SVGFETurbulenceElement::Type()
118 {
119 return mEnumAttributes[TYPE].ToDOMAnimatedEnum(this);
120 }
121
122 FilterPrimitiveDescription
GetPrimitiveDescription(nsSVGFilterInstance * aInstance,const IntRect & aFilterSubregion,const nsTArray<bool> & aInputsAreTainted,nsTArray<RefPtr<SourceSurface>> & aInputImages)123 SVGFETurbulenceElement::GetPrimitiveDescription(nsSVGFilterInstance* aInstance,
124 const IntRect& aFilterSubregion,
125 const nsTArray<bool>& aInputsAreTainted,
126 nsTArray<RefPtr<SourceSurface>>& aInputImages)
127 {
128 float fX = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eFirst);
129 float fY = mNumberPairAttributes[BASE_FREQ].GetAnimValue(nsSVGNumberPair::eSecond);
130 float seed = mNumberAttributes[OCTAVES].GetAnimValue();
131 uint32_t octaves = clamped(mIntegerAttributes[OCTAVES].GetAnimValue(), 0, MAX_OCTAVES);
132 uint32_t type = mEnumAttributes[TYPE].GetAnimValue();
133 uint16_t stitch = mEnumAttributes[STITCHTILES].GetAnimValue();
134
135 if (fX == 0 || fY == 0) {
136 return FilterPrimitiveDescription(PrimitiveType::Empty);
137 }
138
139 // We interpret the base frequency as relative to user space units. In other
140 // words, we consider one turbulence base period to be 1 / fX user space
141 // units wide and 1 / fY user space units high. We do not scale the frequency
142 // depending on the filter primitive region.
143 gfxRect firstPeriodInUserSpace(0, 0, 1 / fX, 1 / fY);
144 gfxRect firstPeriodInFilterSpace = aInstance->UserSpaceToFilterSpace(firstPeriodInUserSpace);
145 Size frequencyInFilterSpace(1 / firstPeriodInFilterSpace.width,
146 1 / firstPeriodInFilterSpace.height);
147 gfxPoint offset = firstPeriodInFilterSpace.TopLeft();
148
149 FilterPrimitiveDescription descr(PrimitiveType::Turbulence);
150 descr.Attributes().Set(eTurbulenceOffset, IntPoint::Truncate(offset.x, offset.y));
151 descr.Attributes().Set(eTurbulenceBaseFrequency, frequencyInFilterSpace);
152 descr.Attributes().Set(eTurbulenceSeed, seed);
153 descr.Attributes().Set(eTurbulenceNumOctaves, octaves);
154 descr.Attributes().Set(eTurbulenceStitchable, stitch == SVG_STITCHTYPE_STITCH);
155 descr.Attributes().Set(eTurbulenceType, type);
156 return descr;
157 }
158
159 bool
AttributeAffectsRendering(int32_t aNameSpaceID,nsIAtom * aAttribute) const160 SVGFETurbulenceElement::AttributeAffectsRendering(int32_t aNameSpaceID,
161 nsIAtom* aAttribute) const
162 {
163 return SVGFETurbulenceElementBase::AttributeAffectsRendering(aNameSpaceID, aAttribute) ||
164 (aNameSpaceID == kNameSpaceID_None &&
165 (aAttribute == nsGkAtoms::seed ||
166 aAttribute == nsGkAtoms::baseFrequency ||
167 aAttribute == nsGkAtoms::numOctaves ||
168 aAttribute == nsGkAtoms::type ||
169 aAttribute == nsGkAtoms::stitchTiles));
170 }
171
172 //----------------------------------------------------------------------
173 // nsSVGElement methods
174
175 nsSVGElement::NumberAttributesInfo
GetNumberInfo()176 SVGFETurbulenceElement::GetNumberInfo()
177 {
178 return NumberAttributesInfo(mNumberAttributes, sNumberInfo,
179 ArrayLength(sNumberInfo));
180 }
181
182 nsSVGElement::NumberPairAttributesInfo
GetNumberPairInfo()183 SVGFETurbulenceElement::GetNumberPairInfo()
184 {
185 return NumberPairAttributesInfo(mNumberPairAttributes, sNumberPairInfo,
186 ArrayLength(sNumberPairInfo));
187 }
188
189 nsSVGElement::IntegerAttributesInfo
GetIntegerInfo()190 SVGFETurbulenceElement::GetIntegerInfo()
191 {
192 return IntegerAttributesInfo(mIntegerAttributes, sIntegerInfo,
193 ArrayLength(sIntegerInfo));
194 }
195
196 nsSVGElement::EnumAttributesInfo
GetEnumInfo()197 SVGFETurbulenceElement::GetEnumInfo()
198 {
199 return EnumAttributesInfo(mEnumAttributes, sEnumInfo,
200 ArrayLength(sEnumInfo));
201 }
202
203 nsSVGElement::StringAttributesInfo
GetStringInfo()204 SVGFETurbulenceElement::GetStringInfo()
205 {
206 return StringAttributesInfo(mStringAttributes, sStringInfo,
207 ArrayLength(sStringInfo));
208 }
209
210 } // namespace dom
211 } // namespace mozilla
212