1 /*
2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #if ENABLE(SVG) && ENABLE(FILTERS)
23 #include "SVGFEConvolveMatrixElement.h"
24
25 #include "Attr.h"
26 #include "FilterEffect.h"
27 #include "FloatPoint.h"
28 #include "IntPoint.h"
29 #include "IntSize.h"
30 #include "SVGFilterBuilder.h"
31 #include "SVGNames.h"
32 #include "SVGParserUtilities.h"
33
34 namespace WebCore {
35
36 // Animated property definitions
DEFINE_ANIMATED_STRING(SVGFEConvolveMatrixElement,SVGNames::inAttr,In1,in1)37 DEFINE_ANIMATED_STRING(SVGFEConvolveMatrixElement, SVGNames::inAttr, In1, in1)
38 DEFINE_ANIMATED_INTEGER_MULTIPLE_WRAPPERS(SVGFEConvolveMatrixElement, SVGNames::orderAttr, orderXIdentifier(), OrderX, orderX)
39 DEFINE_ANIMATED_INTEGER_MULTIPLE_WRAPPERS(SVGFEConvolveMatrixElement, SVGNames::orderAttr, orderYIdentifier(), OrderY, orderY)
40 DEFINE_ANIMATED_NUMBER_LIST(SVGFEConvolveMatrixElement, SVGNames::kernelMatrixAttr, KernelMatrix, kernelMatrix)
41 DEFINE_ANIMATED_NUMBER(SVGFEConvolveMatrixElement, SVGNames::divisorAttr, Divisor, divisor)
42 DEFINE_ANIMATED_NUMBER(SVGFEConvolveMatrixElement, SVGNames::biasAttr, Bias, bias)
43 DEFINE_ANIMATED_INTEGER(SVGFEConvolveMatrixElement, SVGNames::targetXAttr, TargetX, targetX)
44 DEFINE_ANIMATED_INTEGER(SVGFEConvolveMatrixElement, SVGNames::targetYAttr, TargetY, targetY)
45 DEFINE_ANIMATED_ENUMERATION(SVGFEConvolveMatrixElement, SVGNames::operatorAttr, EdgeMode, edgeMode)
46 DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEConvolveMatrixElement, SVGNames::kernelUnitLengthAttr, kernelUnitLengthXIdentifier(), KernelUnitLengthX, kernelUnitLengthX)
47 DEFINE_ANIMATED_NUMBER_MULTIPLE_WRAPPERS(SVGFEConvolveMatrixElement, SVGNames::kernelUnitLengthAttr, kernelUnitLengthYIdentifier(), KernelUnitLengthY, kernelUnitLengthY)
48 DEFINE_ANIMATED_BOOLEAN(SVGFEConvolveMatrixElement, SVGNames::preserveAlphaAttr, PreserveAlpha, preserveAlpha)
49
50 inline SVGFEConvolveMatrixElement::SVGFEConvolveMatrixElement(const QualifiedName& tagName, Document* document)
51 : SVGFilterPrimitiveStandardAttributes(tagName, document)
52 , m_edgeMode(EDGEMODE_DUPLICATE)
53 {
54 }
55
create(const QualifiedName & tagName,Document * document)56 PassRefPtr<SVGFEConvolveMatrixElement> SVGFEConvolveMatrixElement::create(const QualifiedName& tagName, Document* document)
57 {
58 return adoptRef(new SVGFEConvolveMatrixElement(tagName, document));
59 }
60
kernelUnitLengthXIdentifier()61 const AtomicString& SVGFEConvolveMatrixElement::kernelUnitLengthXIdentifier()
62 {
63 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGKernelUnitLengthX"));
64 return s_identifier;
65 }
66
kernelUnitLengthYIdentifier()67 const AtomicString& SVGFEConvolveMatrixElement::kernelUnitLengthYIdentifier()
68 {
69 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGKernelUnitLengthY"));
70 return s_identifier;
71 }
72
orderXIdentifier()73 const AtomicString& SVGFEConvolveMatrixElement::orderXIdentifier()
74 {
75 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGOrderX"));
76 return s_identifier;
77 }
78
orderYIdentifier()79 const AtomicString& SVGFEConvolveMatrixElement::orderYIdentifier()
80 {
81 DEFINE_STATIC_LOCAL(AtomicString, s_identifier, ("SVGOrderY"));
82 return s_identifier;
83 }
84
parseMappedAttribute(Attribute * attr)85 void SVGFEConvolveMatrixElement::parseMappedAttribute(Attribute* attr)
86 {
87 const String& value = attr->value();
88 if (attr->name() == SVGNames::inAttr)
89 setIn1BaseValue(value);
90 else if (attr->name() == SVGNames::orderAttr) {
91 float x, y;
92 if (parseNumberOptionalNumber(value, x, y)) {
93 setOrderXBaseValue(x);
94 setOrderYBaseValue(y);
95 }
96 } else if (attr->name() == SVGNames::edgeModeAttr) {
97 if (value == "duplicate")
98 setEdgeModeBaseValue(EDGEMODE_DUPLICATE);
99 else if (value == "wrap")
100 setEdgeModeBaseValue(EDGEMODE_WRAP);
101 else if (value == "none")
102 setEdgeModeBaseValue(EDGEMODE_NONE);
103 } else if (attr->name() == SVGNames::kernelMatrixAttr) {
104 SVGNumberList newList;
105 newList.parse(value);
106 detachAnimatedKernelMatrixListWrappers(newList.size());
107 setKernelMatrixBaseValue(newList);
108 } else if (attr->name() == SVGNames::divisorAttr)
109 setDivisorBaseValue(value.toFloat());
110 else if (attr->name() == SVGNames::biasAttr)
111 setBiasBaseValue(value.toFloat());
112 else if (attr->name() == SVGNames::targetXAttr)
113 setTargetXBaseValue(value.toUIntStrict());
114 else if (attr->name() == SVGNames::targetYAttr)
115 setTargetYBaseValue(value.toUIntStrict());
116 else if (attr->name() == SVGNames::kernelUnitLengthAttr) {
117 float x, y;
118 if (parseNumberOptionalNumber(value, x, y)) {
119 setKernelUnitLengthXBaseValue(x);
120 setKernelUnitLengthYBaseValue(y);
121 }
122 } else if (attr->name() == SVGNames::preserveAlphaAttr) {
123 if (value == "true")
124 setPreserveAlphaBaseValue(true);
125 else if (value == "false")
126 setPreserveAlphaBaseValue(false);
127 } else
128 SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
129 }
130
setFilterEffectAttribute(FilterEffect * effect,const QualifiedName & attrName)131 bool SVGFEConvolveMatrixElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
132 {
133 FEConvolveMatrix* convolveMatrix = static_cast<FEConvolveMatrix*>(effect);
134 if (attrName == SVGNames::edgeModeAttr)
135 return convolveMatrix->setEdgeMode(static_cast<EdgeModeType>(edgeMode()));
136 if (attrName == SVGNames::divisorAttr)
137 return convolveMatrix->setDivisor(divisor());
138 if (attrName == SVGNames::biasAttr)
139 return convolveMatrix->setBias(bias());
140 if (attrName == SVGNames::targetXAttr)
141 return convolveMatrix->setTargetOffset(IntPoint(targetX(), targetY()));
142 if (attrName == SVGNames::targetYAttr)
143 return convolveMatrix->setTargetOffset(IntPoint(targetX(), targetY()));
144 if (attrName == SVGNames::kernelUnitLengthAttr)
145 return convolveMatrix->setKernelUnitLength(FloatPoint(kernelUnitLengthX(), kernelUnitLengthY()));
146 if (attrName == SVGNames::preserveAlphaAttr)
147 return convolveMatrix->setPreserveAlpha(preserveAlpha());
148
149 ASSERT_NOT_REACHED();
150 return false;
151 }
152
setOrder(float x,float y)153 void SVGFEConvolveMatrixElement::setOrder(float x, float y)
154 {
155 setOrderXBaseValue(x);
156 setOrderYBaseValue(y);
157 invalidate();
158 }
159
setKernelUnitLength(float x,float y)160 void SVGFEConvolveMatrixElement::setKernelUnitLength(float x, float y)
161 {
162 setKernelUnitLengthXBaseValue(x);
163 setKernelUnitLengthYBaseValue(y);
164 invalidate();
165 }
166
svgAttributeChanged(const QualifiedName & attrName)167 void SVGFEConvolveMatrixElement::svgAttributeChanged(const QualifiedName& attrName)
168 {
169 SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
170
171 if (attrName == SVGNames::edgeModeAttr
172 || attrName == SVGNames::divisorAttr
173 || attrName == SVGNames::biasAttr
174 || attrName == SVGNames::targetXAttr
175 || attrName == SVGNames::targetYAttr
176 || attrName == SVGNames::kernelUnitLengthAttr
177 || attrName == SVGNames::preserveAlphaAttr)
178 primitiveAttributeChanged(attrName);
179
180 if (attrName == SVGNames::inAttr
181 || attrName == SVGNames::orderAttr
182 || attrName == SVGNames::kernelMatrixAttr)
183 invalidate();
184 }
185
attributeToPropertyTypeMap()186 AttributeToPropertyTypeMap& SVGFEConvolveMatrixElement::attributeToPropertyTypeMap()
187 {
188 DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
189 return s_attributeToPropertyTypeMap;
190 }
191
fillAttributeToPropertyTypeMap()192 void SVGFEConvolveMatrixElement::fillAttributeToPropertyTypeMap()
193 {
194 AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
195
196 SVGFilterPrimitiveStandardAttributes::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
197 attributeToPropertyTypeMap.set(SVGNames::inAttr, AnimatedString);
198 attributeToPropertyTypeMap.set(SVGNames::orderAttr, AnimatedNumberOptionalNumber);
199 attributeToPropertyTypeMap.set(SVGNames::kernelMatrixAttr, AnimatedNumberList);
200 attributeToPropertyTypeMap.set(SVGNames::divisorAttr, AnimatedNumber);
201 attributeToPropertyTypeMap.set(SVGNames::biasAttr, AnimatedNumber);
202 attributeToPropertyTypeMap.set(SVGNames::targetXAttr, AnimatedInteger);
203 attributeToPropertyTypeMap.set(SVGNames::targetYAttr, AnimatedInteger);
204 attributeToPropertyTypeMap.set(SVGNames::operatorAttr, AnimatedEnumeration);
205 attributeToPropertyTypeMap.set(SVGNames::kernelUnitLengthAttr, AnimatedNumberOptionalNumber);
206 attributeToPropertyTypeMap.set(SVGNames::preserveAlphaAttr, AnimatedBoolean);
207 }
208
build(SVGFilterBuilder * filterBuilder,Filter * filter)209 PassRefPtr<FilterEffect> SVGFEConvolveMatrixElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
210 {
211 FilterEffect* input1 = filterBuilder->getEffectById(in1());
212
213 if (!input1)
214 return 0;
215
216 int orderXValue = orderX();
217 int orderYValue = orderY();
218 if (!hasAttribute(SVGNames::orderAttr)) {
219 orderXValue = 3;
220 orderYValue = 3;
221 }
222 SVGNumberList& kernelMatrix = this->kernelMatrix();
223 int kernelMatrixSize = kernelMatrix.size();
224 // The spec says this is a requirement, and should bail out if fails
225 if (orderXValue * orderYValue != kernelMatrixSize)
226 return 0;
227
228 int targetXValue = targetX();
229 int targetYValue = targetY();
230 if (hasAttribute(SVGNames::targetXAttr) && (targetXValue < 0 || targetXValue >= orderXValue))
231 return 0;
232 // The spec says the default value is: targetX = floor ( orderX / 2 ))
233 if (!hasAttribute(SVGNames::targetXAttr))
234 targetXValue = static_cast<int>(floorf(orderXValue / 2));
235 if (hasAttribute(SVGNames::targetYAttr) && (targetYValue < 0 || targetYValue >= orderYValue))
236 return 0;
237 // The spec says the default value is: targetY = floor ( orderY / 2 ))
238 if (!hasAttribute(SVGNames::targetYAttr))
239 targetYValue = static_cast<int>(floorf(orderYValue / 2));
240
241 float divisorValue = divisor();
242 if (hasAttribute(SVGNames::divisorAttr) && !divisorValue)
243 return 0;
244 if (!hasAttribute(SVGNames::divisorAttr)) {
245 for (int i = 0; i < kernelMatrixSize; ++i)
246 divisorValue += kernelMatrix.at(i);
247 if (!divisorValue)
248 divisorValue = 1;
249 }
250
251 RefPtr<FilterEffect> effect = FEConvolveMatrix::create(filter,
252 IntSize(orderXValue, orderYValue), divisorValue,
253 bias(), IntPoint(targetXValue, targetYValue), static_cast<EdgeModeType>(edgeMode()),
254 FloatPoint(kernelUnitLengthX(), kernelUnitLengthX()), preserveAlpha(), kernelMatrix);
255 effect->inputEffects().append(input1);
256 return effect.release();
257 }
258
259 } // namespace WebCore
260
261 #endif // ENABLE(SVG)
262