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Side by Side Diff: src/effects/gradients/SkTwoPointRadialGradient.cpp

Issue 571163002: removing GrDrawEffect (Closed) Base URL: https://skia.googlesource.com/skia.git@gp3
Patch Set: rebase after revert Created 6 years, 3 months ago
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1 1
2 /* 2 /*
3 * Copyright 2012 Google Inc. 3 * Copyright 2012 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 #include "SkTwoPointRadialGradient.h" 9 #include "SkTwoPointRadialGradient.h"
10 10
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401 #include "gl/builders/GrGLProgramBuilder.h" 401 #include "gl/builders/GrGLProgramBuilder.h"
402 #include "SkGr.h" 402 #include "SkGr.h"
403 403
404 // For brevity 404 // For brevity
405 typedef GrGLProgramDataManager::UniformHandle UniformHandle; 405 typedef GrGLProgramDataManager::UniformHandle UniformHandle;
406 406
407 class GrGLRadial2Gradient : public GrGLGradientEffect { 407 class GrGLRadial2Gradient : public GrGLGradientEffect {
408 408
409 public: 409 public:
410 410
411 GrGLRadial2Gradient(const GrBackendEffectFactory& factory, const GrDrawEffec t&); 411 GrGLRadial2Gradient(const GrBackendEffectFactory& factory, const GrEffect&);
412 virtual ~GrGLRadial2Gradient() { } 412 virtual ~GrGLRadial2Gradient() { }
413 413
414 virtual void emitCode(GrGLProgramBuilder*, 414 virtual void emitCode(GrGLProgramBuilder*,
415 const GrDrawEffect&, 415 const GrEffect&,
416 const GrEffectKey&, 416 const GrEffectKey&,
417 const char* outputColor, 417 const char* outputColor,
418 const char* inputColor, 418 const char* inputColor,
419 const TransformedCoordsArray&, 419 const TransformedCoordsArray&,
420 const TextureSamplerArray&) SK_OVERRIDE; 420 const TextureSamplerArray&) SK_OVERRIDE;
421 virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_ OVERRIDE; 421 virtual void setData(const GrGLProgramDataManager&, const GrEffect&) SK_OVER RIDE;
422 422
423 static void GenKey(const GrDrawEffect&, const GrGLCaps& caps, GrEffectKeyBui lder* b); 423 static void GenKey(const GrEffect&, const GrGLCaps& caps, GrEffectKeyBuilder * b);
424 424
425 protected: 425 protected:
426 426
427 UniformHandle fParamUni; 427 UniformHandle fParamUni;
428 428
429 const char* fVSVaryingName; 429 const char* fVSVaryingName;
430 const char* fFSVaryingName; 430 const char* fFSVaryingName;
431 431
432 bool fIsDegenerate; 432 bool fIsDegenerate;
433 433
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467 // The radial gradient parameters can collapse to a linear (instead of quadr atic) equation. 467 // The radial gradient parameters can collapse to a linear (instead of quadr atic) equation.
468 bool isDegenerate() const { return SK_Scalar1 == fCenterX1; } 468 bool isDegenerate() const { return SK_Scalar1 == fCenterX1; }
469 SkScalar center() const { return fCenterX1; } 469 SkScalar center() const { return fCenterX1; }
470 SkScalar radius() const { return fRadius0; } 470 SkScalar radius() const { return fRadius0; }
471 bool isPosRoot() const { return SkToBool(fPosRoot); } 471 bool isPosRoot() const { return SkToBool(fPosRoot); }
472 472
473 typedef GrGLRadial2Gradient GLEffect; 473 typedef GrGLRadial2Gradient GLEffect;
474 474
475 private: 475 private:
476 virtual bool onIsEqual(const GrEffect& sBase) const SK_OVERRIDE { 476 virtual bool onIsEqual(const GrEffect& sBase) const SK_OVERRIDE {
477 const GrRadial2Gradient& s = CastEffect<GrRadial2Gradient>(sBase); 477 const GrRadial2Gradient& s = sBase.cast<GrRadial2Gradient>();
478 return (INHERITED::onIsEqual(sBase) && 478 return (INHERITED::onIsEqual(sBase) &&
479 this->fCenterX1 == s.fCenterX1 && 479 this->fCenterX1 == s.fCenterX1 &&
480 this->fRadius0 == s.fRadius0 && 480 this->fRadius0 == s.fRadius0 &&
481 this->fPosRoot == s.fPosRoot); 481 this->fPosRoot == s.fPosRoot);
482 } 482 }
483 483
484 GrRadial2Gradient(GrContext* ctx, 484 GrRadial2Gradient(GrContext* ctx,
485 const SkTwoPointRadialGradient& shader, 485 const SkTwoPointRadialGradient& shader,
486 const SkMatrix& matrix, 486 const SkMatrix& matrix,
487 SkShader::TileMode tm) 487 SkShader::TileMode tm)
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548 SkPaint paint; 548 SkPaint paint;
549 GrEffect* effect; 549 GrEffect* effect;
550 GrColor paintColor; 550 GrColor paintColor;
551 SkAssertResult(shader->asNewEffect(context, paint, NULL, &paintColor, &effec t)); 551 SkAssertResult(shader->asNewEffect(context, paint, NULL, &paintColor, &effec t));
552 return effect; 552 return effect;
553 } 553 }
554 554
555 ///////////////////////////////////////////////////////////////////// 555 /////////////////////////////////////////////////////////////////////
556 556
557 GrGLRadial2Gradient::GrGLRadial2Gradient(const GrBackendEffectFactory& factory, 557 GrGLRadial2Gradient::GrGLRadial2Gradient(const GrBackendEffectFactory& factory,
558 const GrDrawEffect& drawEffect) 558 const GrEffect& effect)
559 : INHERITED(factory) 559 : INHERITED(factory)
560 , fVSVaryingName(NULL) 560 , fVSVaryingName(NULL)
561 , fFSVaryingName(NULL) 561 , fFSVaryingName(NULL)
562 , fCachedCenter(SK_ScalarMax) 562 , fCachedCenter(SK_ScalarMax)
563 , fCachedRadius(-SK_ScalarMax) 563 , fCachedRadius(-SK_ScalarMax)
564 , fCachedPosRoot(0) { 564 , fCachedPosRoot(0) {
565 565
566 const GrRadial2Gradient& data = drawEffect.castEffect<GrRadial2Gradient>(); 566 const GrRadial2Gradient& data = effect.cast<GrRadial2Gradient>();
567 fIsDegenerate = data.isDegenerate(); 567 fIsDegenerate = data.isDegenerate();
568 } 568 }
569 569
570 void GrGLRadial2Gradient::emitCode(GrGLProgramBuilder* builder, 570 void GrGLRadial2Gradient::emitCode(GrGLProgramBuilder* builder,
571 const GrDrawEffect& drawEffect, 571 const GrEffect& effect,
572 const GrEffectKey& key, 572 const GrEffectKey& key,
573 const char* outputColor, 573 const char* outputColor,
574 const char* inputColor, 574 const char* inputColor,
575 const TransformedCoordsArray& coords, 575 const TransformedCoordsArray& coords,
576 const TextureSamplerArray& samplers) { 576 const TextureSamplerArray& samplers) {
577 uint32_t baseKey = key.get32(0); 577 uint32_t baseKey = key.get32(0);
578 this->emitUniforms(builder, baseKey); 578 this->emitUniforms(builder, baseKey);
579 fParamUni = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibilit y, 579 fParamUni = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibilit y,
580 kFloat_GrSLType, "Radial2FSParams", 6); 580 kFloat_GrSLType, "Radial2FSParams", 6);
581 581
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635 rootName.c_str(), p1.c_str()); 635 rootName.c_str(), p1.c_str());
636 } else { 636 } else {
637 // t is: -c/b 637 // t is: -c/b
638 t.printf("-%s / %s", cName.c_str(), bVar.c_str()); 638 t.printf("-%s / %s", cName.c_str(), bVar.c_str());
639 } 639 }
640 640
641 this->emitColor(builder, t.c_str(), baseKey, outputColor, inputColor, sample rs); 641 this->emitColor(builder, t.c_str(), baseKey, outputColor, inputColor, sample rs);
642 } 642 }
643 643
644 void GrGLRadial2Gradient::setData(const GrGLProgramDataManager& pdman, 644 void GrGLRadial2Gradient::setData(const GrGLProgramDataManager& pdman,
645 const GrDrawEffect& drawEffect) { 645 const GrEffect& effect) {
646 INHERITED::setData(pdman, drawEffect); 646 INHERITED::setData(pdman, effect);
647 const GrRadial2Gradient& data = drawEffect.castEffect<GrRadial2Gradient>(); 647 const GrRadial2Gradient& data = effect.cast<GrRadial2Gradient>();
648 SkASSERT(data.isDegenerate() == fIsDegenerate); 648 SkASSERT(data.isDegenerate() == fIsDegenerate);
649 SkScalar centerX1 = data.center(); 649 SkScalar centerX1 = data.center();
650 SkScalar radius0 = data.radius(); 650 SkScalar radius0 = data.radius();
651 if (fCachedCenter != centerX1 || 651 if (fCachedCenter != centerX1 ||
652 fCachedRadius != radius0 || 652 fCachedRadius != radius0 ||
653 fCachedPosRoot != data.isPosRoot()) { 653 fCachedPosRoot != data.isPosRoot()) {
654 654
655 SkScalar a = SkScalarMul(centerX1, centerX1) - SK_Scalar1; 655 SkScalar a = SkScalarMul(centerX1, centerX1) - SK_Scalar1;
656 656
657 // When we're in the degenerate (linear) case, the second 657 // When we're in the degenerate (linear) case, the second
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668 data.isPosRoot() ? 1.f : -1.f 668 data.isPosRoot() ? 1.f : -1.f
669 }; 669 };
670 670
671 pdman.set1fv(fParamUni, 6, values); 671 pdman.set1fv(fParamUni, 6, values);
672 fCachedCenter = centerX1; 672 fCachedCenter = centerX1;
673 fCachedRadius = radius0; 673 fCachedRadius = radius0;
674 fCachedPosRoot = data.isPosRoot(); 674 fCachedPosRoot = data.isPosRoot();
675 } 675 }
676 } 676 }
677 677
678 void GrGLRadial2Gradient::GenKey(const GrDrawEffect& drawEffect, 678 void GrGLRadial2Gradient::GenKey(const GrEffect& effect,
679 const GrGLCaps&, GrEffectKeyBuilder* b) { 679 const GrGLCaps&, GrEffectKeyBuilder* b) {
680 uint32_t* key = b->add32n(2); 680 uint32_t* key = b->add32n(2);
681 key[0] = GenBaseGradientKey(drawEffect); 681 key[0] = GenBaseGradientKey(effect);
682 key[1] = drawEffect.castEffect<GrRadial2Gradient>().isDegenerate(); 682 key[1] = effect.cast<GrRadial2Gradient>().isDegenerate();
683 } 683 }
684 684
685 ///////////////////////////////////////////////////////////////////// 685 /////////////////////////////////////////////////////////////////////
686 686
687 bool SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint& pa int, 687 bool SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint& pa int,
688 const SkMatrix* localMatrix, GrColor* paintColor, 688 const SkMatrix* localMatrix, GrColor* paintColor,
689 GrEffect** effect) const { 689 GrEffect** effect) const {
690 SkASSERT(context); 690 SkASSERT(context);
691 691
692 // invert the localM, translate to center1 (fPtsToUni), rotate so center2 is on x axis. 692 // invert the localM, translate to center1 (fPtsToUni), rotate so center2 is on x axis.
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721 #else 721 #else
722 722
723 bool SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint& pa int, 723 bool SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint& pa int,
724 const SkMatrix* localMatrix, GrColor* paintColor, 724 const SkMatrix* localMatrix, GrColor* paintColor,
725 GrEffect** effect) const { 725 GrEffect** effect) const {
726 SkDEBUGFAIL("Should not call in GPU-less build"); 726 SkDEBUGFAIL("Should not call in GPU-less build");
727 return false; 727 return false;
728 } 728 }
729 729
730 #endif 730 #endif
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