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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkDisplacementMapEffect.h" | 8 #include "SkDisplacementMapEffect.h" |
9 #include "SkFlattenableBuffers.h" | 9 #include "SkFlattenableBuffers.h" |
10 #include "SkUnPreMultiply.h" | 10 #include "SkUnPreMultiply.h" |
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119 case SkDisplacementMapEffect::kA_ChannelSelectorType: | 119 case SkDisplacementMapEffect::kA_ChannelSelectorType: |
120 computeDisplacement<SkDisplacementMapEffect::kA_ChannelSelectorType>( | 120 computeDisplacement<SkDisplacementMapEffect::kA_ChannelSelectorType>( |
121 yChannelSelector, scale, dst, displ, src, bounds); | 121 yChannelSelector, scale, dst, displ, src, bounds); |
122 break; | 122 break; |
123 case SkDisplacementMapEffect::kUnknown_ChannelSelectorType: | 123 case SkDisplacementMapEffect::kUnknown_ChannelSelectorType: |
124 default: | 124 default: |
125 SkDEBUGFAIL("Unknown X channel selector"); | 125 SkDEBUGFAIL("Unknown X channel selector"); |
126 } | 126 } |
127 } | 127 } |
128 | 128 |
| 129 bool channel_selector_type_is_valid(SkDisplacementMapEffect::ChannelSelectorType
cst) { |
| 130 switch (cst) { |
| 131 case SkDisplacementMapEffect::kUnknown_ChannelSelectorType: |
| 132 case SkDisplacementMapEffect::kR_ChannelSelectorType: |
| 133 case SkDisplacementMapEffect::kG_ChannelSelectorType: |
| 134 case SkDisplacementMapEffect::kB_ChannelSelectorType: |
| 135 case SkDisplacementMapEffect::kA_ChannelSelectorType: |
| 136 return true; |
| 137 default: |
| 138 break; |
| 139 } |
| 140 return false; |
| 141 } |
| 142 |
129 } // end namespace | 143 } // end namespace |
130 | 144 |
131 /////////////////////////////////////////////////////////////////////////////// | 145 /////////////////////////////////////////////////////////////////////////////// |
132 | 146 |
133 SkDisplacementMapEffect::SkDisplacementMapEffect(ChannelSelectorType xChannelSel
ector, | 147 SkDisplacementMapEffect::SkDisplacementMapEffect(ChannelSelectorType xChannelSel
ector, |
134 ChannelSelectorType yChannelSel
ector, | 148 ChannelSelectorType yChannelSel
ector, |
135 SkScalar scale, | 149 SkScalar scale, |
136 SkImageFilter* displacement, | 150 SkImageFilter* displacement, |
137 SkImageFilter* color, | 151 SkImageFilter* color, |
138 const CropRect* cropRect) | 152 const CropRect* cropRect) |
139 : INHERITED(displacement, color, cropRect) | 153 : INHERITED(displacement, color, cropRect) |
140 , fXChannelSelector(xChannelSelector) | 154 , fXChannelSelector(xChannelSelector) |
141 , fYChannelSelector(yChannelSelector) | 155 , fYChannelSelector(yChannelSelector) |
142 , fScale(scale) | 156 , fScale(scale) |
143 { | 157 { |
144 } | 158 } |
145 | 159 |
146 SkDisplacementMapEffect::~SkDisplacementMapEffect() { | 160 SkDisplacementMapEffect::~SkDisplacementMapEffect() { |
147 } | 161 } |
148 | 162 |
149 SkDisplacementMapEffect::SkDisplacementMapEffect(SkFlattenableReadBuffer& buffer
) | 163 SkDisplacementMapEffect::SkDisplacementMapEffect(SkFlattenableReadBuffer& buffer
) |
150 : INHERITED(buffer) | 164 : INHERITED(buffer) |
151 { | 165 { |
152 fXChannelSelector = (SkDisplacementMapEffect::ChannelSelectorType) buffer.re
adInt(); | 166 fXChannelSelector = (SkDisplacementMapEffect::ChannelSelectorType) buffer.re
adInt(); |
153 fYChannelSelector = (SkDisplacementMapEffect::ChannelSelectorType) buffer.re
adInt(); | 167 fYChannelSelector = (SkDisplacementMapEffect::ChannelSelectorType) buffer.re
adInt(); |
154 fScale = buffer.readScalar(); | 168 fScale = buffer.readScalar(); |
| 169 buffer.validate(channel_selector_type_is_valid(fXChannelSelector) && |
| 170 channel_selector_type_is_valid(fYChannelSelector) && |
| 171 SkScalarIsFinite(fScale)); |
155 } | 172 } |
156 | 173 |
157 void SkDisplacementMapEffect::flatten(SkFlattenableWriteBuffer& buffer) const { | 174 void SkDisplacementMapEffect::flatten(SkFlattenableWriteBuffer& buffer) const { |
158 this->INHERITED::flatten(buffer); | 175 this->INHERITED::flatten(buffer); |
159 buffer.writeInt((int) fXChannelSelector); | 176 buffer.writeInt((int) fXChannelSelector); |
160 buffer.writeInt((int) fYChannelSelector); | 177 buffer.writeInt((int) fYChannelSelector); |
161 buffer.writeScalar(fScale); | 178 buffer.writeScalar(fScale); |
162 } | 179 } |
163 | 180 |
164 bool SkDisplacementMapEffect::onFilterImage(Proxy* proxy, | 181 bool SkDisplacementMapEffect::onFilterImage(Proxy* proxy, |
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507 const GrGLCaps&) { | 524 const GrGLCaps&) { |
508 const GrDisplacementMapEffect& displacementMap = | 525 const GrDisplacementMapEffect& displacementMap = |
509 drawEffect.castEffect<GrDisplacementMapEffect>(); | 526 drawEffect.castEffect<GrDisplacementMapEffect>(); |
510 | 527 |
511 EffectKey xKey = displacementMap.xChannelSelector(); | 528 EffectKey xKey = displacementMap.xChannelSelector(); |
512 EffectKey yKey = displacementMap.yChannelSelector() << SkDisplacementMapEffe
ct::kKeyBits; | 529 EffectKey yKey = displacementMap.yChannelSelector() << SkDisplacementMapEffe
ct::kKeyBits; |
513 | 530 |
514 return xKey | yKey; | 531 return xKey | yKey; |
515 } | 532 } |
516 #endif | 533 #endif |
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