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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 "SkReadBuffer.h" | 9 #include "SkReadBuffer.h" |
10 #include "SkWriteBuffer.h" | 10 #include "SkWriteBuffer.h" |
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220 return false; | 220 return false; |
221 } | 221 } |
222 if (!bounds.intersect(displBounds)) { | 222 if (!bounds.intersect(displBounds)) { |
223 return false; | 223 return false; |
224 } | 224 } |
225 SkAutoLockPixels alp_displacement(displ), alp_color(color); | 225 SkAutoLockPixels alp_displacement(displ), alp_color(color); |
226 if (!displ.getPixels() || !color.getPixels()) { | 226 if (!displ.getPixels() || !color.getPixels()) { |
227 return false; | 227 return false; |
228 } | 228 } |
229 | 229 |
230 dst->setConfig(color.config(), bounds.width(), bounds.height()); | 230 if (!dst->allocPixels(color.info().makeWH(bounds.width(), bounds.height())))
{ |
231 if (!dst->allocPixels()) { | |
232 return false; | 231 return false; |
233 } | 232 } |
234 | 233 |
235 SkVector scale = SkVector::Make(fScale, fScale); | 234 SkVector scale = SkVector::Make(fScale, fScale); |
236 ctx.ctm().mapVectors(&scale, 1); | 235 ctx.ctm().mapVectors(&scale, 1); |
237 SkIRect colorBounds = bounds; | 236 SkIRect colorBounds = bounds; |
238 colorBounds.offset(-colorOffset); | 237 colorBounds.offset(-colorOffset); |
239 | 238 |
240 computeDisplacement(fXChannelSelector, fYChannelSelector, scale, dst, | 239 computeDisplacement(fXChannelSelector, fYChannelSelector, scale, dst, |
241 &displ, colorOffset - displOffset, &color, colorBounds); | 240 &displ, colorOffset - displOffset, &color, colorBounds); |
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606 const GrGLCaps&) { | 605 const GrGLCaps&) { |
607 const GrDisplacementMapEffect& displacementMap = | 606 const GrDisplacementMapEffect& displacementMap = |
608 drawEffect.castEffect<GrDisplacementMapEffect>(); | 607 drawEffect.castEffect<GrDisplacementMapEffect>(); |
609 | 608 |
610 EffectKey xKey = displacementMap.xChannelSelector(); | 609 EffectKey xKey = displacementMap.xChannelSelector(); |
611 EffectKey yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBi
ts; | 610 EffectKey yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBi
ts; |
612 | 611 |
613 return xKey | yKey; | 612 return xKey | yKey; |
614 } | 613 } |
615 #endif | 614 #endif |
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