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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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239 colorBounds.offset(-colorOffset); | 239 colorBounds.offset(-colorOffset); |
240 | 240 |
241 computeDisplacement(fXChannelSelector, fYChannelSelector, scale, dst, | 241 computeDisplacement(fXChannelSelector, fYChannelSelector, scale, dst, |
242 &displ, colorOffset - displOffset, &color, colorBounds); | 242 &displ, colorOffset - displOffset, &color, colorBounds); |
243 | 243 |
244 offset->fX = bounds.left(); | 244 offset->fX = bounds.left(); |
245 offset->fY = bounds.top(); | 245 offset->fY = bounds.top(); |
246 return true; | 246 return true; |
247 } | 247 } |
248 | 248 |
| 249 void SkDisplacementMapEffect::computeFastBounds(const SkRect& src, SkRect* dst)
const { |
| 250 if (getColorInput()) { |
| 251 getColorInput()->computeFastBounds(src, dst); |
| 252 } else { |
| 253 *dst = src; |
| 254 } |
| 255 } |
| 256 |
249 /////////////////////////////////////////////////////////////////////////////// | 257 /////////////////////////////////////////////////////////////////////////////// |
250 | 258 |
251 #if SK_SUPPORT_GPU | 259 #if SK_SUPPORT_GPU |
252 class GrGLDisplacementMapEffect : public GrGLEffect { | 260 class GrGLDisplacementMapEffect : public GrGLEffect { |
253 public: | 261 public: |
254 GrGLDisplacementMapEffect(const GrBackendEffectFactory& factory, | 262 GrGLDisplacementMapEffect(const GrBackendEffectFactory& factory, |
255 const GrDrawEffect& drawEffect); | 263 const GrDrawEffect& drawEffect); |
256 virtual ~GrGLDisplacementMapEffect(); | 264 virtual ~GrGLDisplacementMapEffect(); |
257 | 265 |
258 virtual void emitCode(GrGLShaderBuilder*, | 266 virtual void emitCode(GrGLShaderBuilder*, |
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581 const GrGLCaps&) { | 589 const GrGLCaps&) { |
582 const GrDisplacementMapEffect& displacementMap = | 590 const GrDisplacementMapEffect& displacementMap = |
583 drawEffect.castEffect<GrDisplacementMapEffect>(); | 591 drawEffect.castEffect<GrDisplacementMapEffect>(); |
584 | 592 |
585 EffectKey xKey = displacementMap.xChannelSelector(); | 593 EffectKey xKey = displacementMap.xChannelSelector(); |
586 EffectKey yKey = displacementMap.yChannelSelector() << SkDisplacementMapEffe
ct::kKeyBits; | 594 EffectKey yKey = displacementMap.yChannelSelector() << SkDisplacementMapEffe
ct::kKeyBits; |
587 | 595 |
588 return xKey | yKey; | 596 return xKey | yKey; |
589 } | 597 } |
590 #endif | 598 #endif |
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