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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 "SkLinearGradient.h" | 8 #include "SkLinearGradient.h" |
9 | 9 |
10 static inline int repeat_bits(int x, const int bits) { | 10 static inline int repeat_bits(int x, const int bits) { |
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482 | 482 |
483 typedef GrGLGradientEffect INHERITED; | 483 typedef GrGLGradientEffect INHERITED; |
484 }; | 484 }; |
485 | 485 |
486 ///////////////////////////////////////////////////////////////////// | 486 ///////////////////////////////////////////////////////////////////// |
487 | 487 |
488 class GrLinearGradient : public GrGradientEffect { | 488 class GrLinearGradient : public GrGradientEffect { |
489 public: | 489 public: |
490 | 490 |
491 static GrFragmentProcessor* Create(GrContext* ctx, | 491 static GrFragmentProcessor* Create(GrContext* ctx, |
| 492 GrShaderDataManager* shaderDataManager, |
492 const SkLinearGradient& shader, | 493 const SkLinearGradient& shader, |
493 const SkMatrix& matrix, | 494 const SkMatrix& matrix, |
494 SkShader::TileMode tm) { | 495 SkShader::TileMode tm) { |
495 return SkNEW_ARGS(GrLinearGradient, (ctx, shader, matrix, tm)); | 496 return SkNEW_ARGS(GrLinearGradient, (ctx, shaderDataManager, shader, mat
rix, tm)); |
496 } | 497 } |
497 | 498 |
498 virtual ~GrLinearGradient() { } | 499 virtual ~GrLinearGradient() { } |
499 | 500 |
500 const char* name() const override { return "Linear Gradient"; } | 501 const char* name() const override { return "Linear Gradient"; } |
501 | 502 |
502 virtual void getGLProcessorKey(const GrGLSLCaps& caps, | 503 virtual void getGLProcessorKey(const GrGLSLCaps& caps, |
503 GrProcessorKeyBuilder* b) const override { | 504 GrProcessorKeyBuilder* b) const override { |
504 GrGLLinearGradient::GenKey(*this, caps, b); | 505 GrGLLinearGradient::GenKey(*this, caps, b); |
505 } | 506 } |
506 | 507 |
507 GrGLFragmentProcessor* createGLInstance() const override { | 508 GrGLFragmentProcessor* createGLInstance() const override { |
508 return SkNEW_ARGS(GrGLLinearGradient, (*this)); | 509 return SkNEW_ARGS(GrGLLinearGradient, (*this)); |
509 } | 510 } |
510 | 511 |
511 private: | 512 private: |
512 GrLinearGradient(GrContext* ctx, | 513 GrLinearGradient(GrContext* ctx, |
| 514 GrShaderDataManager* shaderDataManager, |
513 const SkLinearGradient& shader, | 515 const SkLinearGradient& shader, |
514 const SkMatrix& matrix, | 516 const SkMatrix& matrix, |
515 SkShader::TileMode tm) | 517 SkShader::TileMode tm) |
516 : INHERITED(ctx, shader, matrix, tm) { | 518 : INHERITED(ctx, shaderDataManager, shader, matrix, tm) { |
517 this->initClassID<GrLinearGradient>(); | 519 this->initClassID<GrLinearGradient>(); |
518 } | 520 } |
519 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 521 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
520 | 522 |
521 typedef GrGradientEffect INHERITED; | 523 typedef GrGradientEffect INHERITED; |
522 }; | 524 }; |
523 | 525 |
524 ///////////////////////////////////////////////////////////////////// | 526 ///////////////////////////////////////////////////////////////////// |
525 | 527 |
526 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient); | 528 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient); |
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562 this->emitUniforms(builder, ge); | 564 this->emitUniforms(builder, ge); |
563 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); | 565 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); |
564 t.append(".x"); | 566 t.append(".x"); |
565 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); | 567 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); |
566 } | 568 } |
567 | 569 |
568 ///////////////////////////////////////////////////////////////////// | 570 ///////////////////////////////////////////////////////////////////// |
569 | 571 |
570 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, | 572 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, |
571 const SkMatrix& viewm, const SkMatrix
* localMatrix, | 573 const SkMatrix& viewm, const SkMatrix
* localMatrix, |
572 GrColor* paintColor, GrShaderDataMana
ger*, | 574 GrColor* paintColor, |
| 575 GrShaderDataManager* shaderDataManage
r, |
573 GrFragmentProcessor** fp) const { | 576 GrFragmentProcessor** fp) const { |
574 SkASSERT(context); | 577 SkASSERT(context); |
575 | 578 |
576 SkMatrix matrix; | 579 SkMatrix matrix; |
577 if (!this->getLocalMatrix().invert(&matrix)) { | 580 if (!this->getLocalMatrix().invert(&matrix)) { |
578 return false; | 581 return false; |
579 } | 582 } |
580 if (localMatrix) { | 583 if (localMatrix) { |
581 SkMatrix inv; | 584 SkMatrix inv; |
582 if (!localMatrix->invert(&inv)) { | 585 if (!localMatrix->invert(&inv)) { |
583 return false; | 586 return false; |
584 } | 587 } |
585 matrix.postConcat(inv); | 588 matrix.postConcat(inv); |
586 } | 589 } |
587 matrix.postConcat(fPtsToUnit); | 590 matrix.postConcat(fPtsToUnit); |
588 | 591 |
589 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); | 592 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); |
590 *fp = GrLinearGradient::Create(context, *this, matrix, fTileMode); | 593 *fp = GrLinearGradient::Create(context, shaderDataManager, *this, matrix, fT
ileMode); |
591 | 594 |
592 return true; | 595 return true; |
593 } | 596 } |
594 | 597 |
595 #else | 598 #else |
596 | 599 |
597 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, | 600 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, |
598 const SkMatrix*, GrColor*, GrShaderDa
taManager*, | 601 const SkMatrix*, GrColor*, GrShaderDa
taManager*, |
599 GrFragmentProcessor**) const { | 602 GrFragmentProcessor**) const { |
600 SkDEBUGFAIL("Should not call in GPU-less build"); | 603 SkDEBUGFAIL("Should not call in GPU-less build"); |
601 return false; | 604 return false; |
602 } | 605 } |
603 | 606 |
604 #endif | 607 #endif |
605 | 608 |
606 #ifndef SK_IGNORE_TO_STRING | 609 #ifndef SK_IGNORE_TO_STRING |
607 void SkLinearGradient::toString(SkString* str) const { | 610 void SkLinearGradient::toString(SkString* str) const { |
608 str->append("SkLinearGradient ("); | 611 str->append("SkLinearGradient ("); |
609 | 612 |
610 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); | 613 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
611 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); | 614 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
612 | 615 |
613 this->INHERITED::toString(str); | 616 this->INHERITED::toString(str); |
614 | 617 |
615 str->append(")"); | 618 str->append(")"); |
616 } | 619 } |
617 #endif | 620 #endif |
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