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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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271 | 271 |
272 #if SK_SUPPORT_GPU | 272 #if SK_SUPPORT_GPU |
273 class GrGLDisplacementMapEffect : public GrGLEffect { | 273 class GrGLDisplacementMapEffect : public GrGLEffect { |
274 public: | 274 public: |
275 GrGLDisplacementMapEffect(const GrBackendEffectFactory& factory, | 275 GrGLDisplacementMapEffect(const GrBackendEffectFactory& factory, |
276 const GrDrawEffect& drawEffect); | 276 const GrDrawEffect& drawEffect); |
277 virtual ~GrGLDisplacementMapEffect(); | 277 virtual ~GrGLDisplacementMapEffect(); |
278 | 278 |
279 virtual void emitCode(GrGLShaderBuilder*, | 279 virtual void emitCode(GrGLShaderBuilder*, |
280 const GrDrawEffect&, | 280 const GrDrawEffect&, |
281 EffectKey, | 281 const GrEffectKey&, |
282 const char* outputColor, | 282 const char* outputColor, |
283 const char* inputColor, | 283 const char* inputColor, |
284 const TransformedCoordsArray&, | 284 const TransformedCoordsArray&, |
285 const TextureSamplerArray&) SK_OVERRIDE; | 285 const TextureSamplerArray&) SK_OVERRIDE; |
286 | 286 |
287 static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); | 287 static inline void GenKey(const GrDrawEffect&, const GrGLCaps&, GrEffectKeyB
uilder*); |
288 | 288 |
289 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; | 289 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; |
290 | 290 |
291 private: | 291 private: |
292 SkDisplacementMapEffect::ChannelSelectorType fXChannelSelector; | 292 SkDisplacementMapEffect::ChannelSelectorType fXChannelSelector; |
293 SkDisplacementMapEffect::ChannelSelectorType fYChannelSelector; | 293 SkDisplacementMapEffect::ChannelSelectorType fYChannelSelector; |
294 GrGLUniformManager::UniformHandle fScaleUni; | 294 GrGLUniformManager::UniformHandle fScaleUni; |
295 | 295 |
296 typedef GrGLEffect INHERITED; | 296 typedef GrGLEffect INHERITED; |
297 }; | 297 }; |
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506 : INHERITED(factory) | 506 : INHERITED(factory) |
507 , fXChannelSelector(drawEffect.castEffect<GrDisplacementMapEffect>().xChanne
lSelector()) | 507 , fXChannelSelector(drawEffect.castEffect<GrDisplacementMapEffect>().xChanne
lSelector()) |
508 , fYChannelSelector(drawEffect.castEffect<GrDisplacementMapEffect>().yChanne
lSelector()) { | 508 , fYChannelSelector(drawEffect.castEffect<GrDisplacementMapEffect>().yChanne
lSelector()) { |
509 } | 509 } |
510 | 510 |
511 GrGLDisplacementMapEffect::~GrGLDisplacementMapEffect() { | 511 GrGLDisplacementMapEffect::~GrGLDisplacementMapEffect() { |
512 } | 512 } |
513 | 513 |
514 void GrGLDisplacementMapEffect::emitCode(GrGLShaderBuilder* builder, | 514 void GrGLDisplacementMapEffect::emitCode(GrGLShaderBuilder* builder, |
515 const GrDrawEffect&, | 515 const GrDrawEffect&, |
516 EffectKey key, | 516 const GrEffectKey& key, |
517 const char* outputColor, | 517 const char* outputColor, |
518 const char* inputColor, | 518 const char* inputColor, |
519 const TransformedCoordsArray& coords, | 519 const TransformedCoordsArray& coords, |
520 const TextureSamplerArray& samplers) { | 520 const TextureSamplerArray& samplers) { |
521 sk_ignore_unused_variable(inputColor); | 521 sk_ignore_unused_variable(inputColor); |
522 | 522 |
523 fScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, | 523 fScaleUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility, |
524 kVec2f_GrSLType, "Scale"); | 524 kVec2f_GrSLType, "Scale"); |
525 const char* scaleUni = builder->getUniformCStr(fScaleUni); | 525 const char* scaleUni = builder->getUniformCStr(fScaleUni); |
526 const char* dColor = "dColor"; | 526 const char* dColor = "dColor"; |
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593 const GrDisplacementMapEffect& displacementMap = | 593 const GrDisplacementMapEffect& displacementMap = |
594 drawEffect.castEffect<GrDisplacementMapEffect>(); | 594 drawEffect.castEffect<GrDisplacementMapEffect>(); |
595 GrTexture* colorTex = displacementMap.texture(1); | 595 GrTexture* colorTex = displacementMap.texture(1); |
596 SkScalar scaleX = SkScalarDiv(displacementMap.scale().fX, SkIntToScalar(colo
rTex->width())); | 596 SkScalar scaleX = SkScalarDiv(displacementMap.scale().fX, SkIntToScalar(colo
rTex->width())); |
597 SkScalar scaleY = SkScalarDiv(displacementMap.scale().fY, SkIntToScalar(colo
rTex->height())); | 597 SkScalar scaleY = SkScalarDiv(displacementMap.scale().fY, SkIntToScalar(colo
rTex->height())); |
598 uman.set2f(fScaleUni, SkScalarToFloat(scaleX), | 598 uman.set2f(fScaleUni, SkScalarToFloat(scaleX), |
599 colorTex->origin() == kTopLeft_GrSurfaceOrigin ? | 599 colorTex->origin() == kTopLeft_GrSurfaceOrigin ? |
600 SkScalarToFloat(scaleY) : SkScalarToFloat(-scaleY)); | 600 SkScalarToFloat(scaleY) : SkScalarToFloat(-scaleY)); |
601 } | 601 } |
602 | 602 |
603 GrGLEffect::EffectKey GrGLDisplacementMapEffect::GenKey(const GrDrawEffect& draw
Effect, | 603 void GrGLDisplacementMapEffect::GenKey(const GrDrawEffect& drawEffect, |
604 const GrGLCaps&) { | 604 const GrGLCaps&, GrEffectKeyBuilder* b) { |
605 const GrDisplacementMapEffect& displacementMap = | 605 const GrDisplacementMapEffect& displacementMap = |
606 drawEffect.castEffect<GrDisplacementMapEffect>(); | 606 drawEffect.castEffect<GrDisplacementMapEffect>(); |
607 | 607 |
608 EffectKey xKey = displacementMap.xChannelSelector(); | 608 uint32_t xKey = displacementMap.xChannelSelector(); |
609 EffectKey yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBi
ts; | 609 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; |
610 | 610 |
611 return xKey | yKey; | 611 b->add32(xKey | yKey); |
612 } | 612 } |
613 #endif | 613 #endif |
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