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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) { |
| (...skipping 471 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 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 GrProcessorDataManager* procDataManager, |
| 493 const SkLinearGradient& shader, | 493 const SkLinearGradient& shader, |
| 494 const SkMatrix& matrix, | 494 const SkMatrix& matrix, |
| 495 SkShader::TileMode tm) { | 495 SkShader::TileMode tm) { |
| 496 return SkNEW_ARGS(GrLinearGradient, (ctx, shaderDataManager, shader, mat
rix, tm)); | 496 return SkNEW_ARGS(GrLinearGradient, (ctx, procDataManager, shader, matri
x, tm)); |
| 497 } | 497 } |
| 498 | 498 |
| 499 virtual ~GrLinearGradient() { } | 499 virtual ~GrLinearGradient() { } |
| 500 | 500 |
| 501 const char* name() const override { return "Linear Gradient"; } | 501 const char* name() const override { return "Linear Gradient"; } |
| 502 | 502 |
| 503 virtual void getGLProcessorKey(const GrGLSLCaps& caps, | 503 virtual void getGLProcessorKey(const GrGLSLCaps& caps, |
| 504 GrProcessorKeyBuilder* b) const override { | 504 GrProcessorKeyBuilder* b) const override { |
| 505 GrGLLinearGradient::GenKey(*this, caps, b); | 505 GrGLLinearGradient::GenKey(*this, caps, b); |
| 506 } | 506 } |
| 507 | 507 |
| 508 GrGLFragmentProcessor* createGLInstance() const override { | 508 GrGLFragmentProcessor* createGLInstance() const override { |
| 509 return SkNEW_ARGS(GrGLLinearGradient, (*this)); | 509 return SkNEW_ARGS(GrGLLinearGradient, (*this)); |
| 510 } | 510 } |
| 511 | 511 |
| 512 private: | 512 private: |
| 513 GrLinearGradient(GrContext* ctx, | 513 GrLinearGradient(GrContext* ctx, |
| 514 GrShaderDataManager* shaderDataManager, | 514 GrProcessorDataManager* procDataManager, |
| 515 const SkLinearGradient& shader, | 515 const SkLinearGradient& shader, |
| 516 const SkMatrix& matrix, | 516 const SkMatrix& matrix, |
| 517 SkShader::TileMode tm) | 517 SkShader::TileMode tm) |
| 518 : INHERITED(ctx, shaderDataManager, shader, matrix, tm) { | 518 : INHERITED(ctx, procDataManager, shader, matrix, tm) { |
| 519 this->initClassID<GrLinearGradient>(); | 519 this->initClassID<GrLinearGradient>(); |
| 520 } | 520 } |
| 521 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 521 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
| 522 | 522 |
| 523 typedef GrGradientEffect INHERITED; | 523 typedef GrGradientEffect INHERITED; |
| 524 }; | 524 }; |
| 525 | 525 |
| 526 ///////////////////////////////////////////////////////////////////// | 526 ///////////////////////////////////////////////////////////////////// |
| 527 | 527 |
| 528 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient); | 528 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrLinearGradient); |
| 529 | 529 |
| 530 GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) { | 530 GrFragmentProcessor* GrLinearGradient::TestCreate(GrProcessorTestData* d) { |
| 531 SkPoint points[] = {{d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}
, | 531 SkPoint points[] = {{d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}
, |
| 532 {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}
}; | 532 {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()}
}; |
| 533 | 533 |
| 534 SkColor colors[kMaxRandomGradientColors]; | 534 SkColor colors[kMaxRandomGradientColors]; |
| 535 SkScalar stopsArray[kMaxRandomGradientColors]; | 535 SkScalar stopsArray[kMaxRandomGradientColors]; |
| 536 SkScalar* stops = stopsArray; | 536 SkScalar* stops = stopsArray; |
| 537 SkShader::TileMode tm; | 537 SkShader::TileMode tm; |
| 538 int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); | 538 int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
| 539 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, | 539 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, |
| 540 colors, stops,
colorCount, | 540 colors, stops,
colorCount, |
| 541 tm)); | 541 tm)); |
| 542 SkPaint paint; | 542 SkPaint paint; |
| 543 GrColor paintColor; | 543 GrColor paintColor; |
| 544 GrFragmentProcessor* fp; | 544 GrFragmentProcessor* fp; |
| 545 SkAssertResult(shader->asFragmentProcessor(d->fContext, paint, | 545 SkAssertResult(shader->asFragmentProcessor(d->fContext, paint, |
| 546 GrTest::TestMatrix(d->fRandom), N
ULL, | 546 GrTest::TestMatrix(d->fRandom), N
ULL, |
| 547 &paintColor, d->fShaderDataManage
r, &fp)); | 547 &paintColor, d->fProcDataManager,
&fp)); |
| 548 return fp; | 548 return fp; |
| 549 } | 549 } |
| 550 | 550 |
| 551 ///////////////////////////////////////////////////////////////////// | 551 ///////////////////////////////////////////////////////////////////// |
| 552 | 552 |
| 553 void GrGLLinearGradient::emitCode(GrGLFPBuilder* builder, | 553 void GrGLLinearGradient::emitCode(GrGLFPBuilder* builder, |
| 554 const GrFragmentProcessor& fp, | 554 const GrFragmentProcessor& fp, |
| 555 const char* outputColor, | 555 const char* outputColor, |
| 556 const char* inputColor, | 556 const char* inputColor, |
| 557 const TransformedCoordsArray& coords, | 557 const TransformedCoordsArray& coords, |
| 558 const TextureSamplerArray& samplers) { | 558 const TextureSamplerArray& samplers) { |
| 559 const GrLinearGradient& ge = fp.cast<GrLinearGradient>(); | 559 const GrLinearGradient& ge = fp.cast<GrLinearGradient>(); |
| 560 this->emitUniforms(builder, ge); | 560 this->emitUniforms(builder, ge); |
| 561 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); | 561 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); |
| 562 t.append(".x"); | 562 t.append(".x"); |
| 563 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); | 563 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); |
| 564 } | 564 } |
| 565 | 565 |
| 566 ///////////////////////////////////////////////////////////////////// | 566 ///////////////////////////////////////////////////////////////////// |
| 567 | 567 |
| 568 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, | 568 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, |
| 569 const SkMatrix& viewm, const SkMatrix
* localMatrix, | 569 const SkMatrix& viewm, const SkMatrix
* localMatrix, |
| 570 GrColor* paintColor, | 570 GrColor* paintColor, |
| 571 GrShaderDataManager* shaderDataManage
r, | 571 GrProcessorDataManager* procDataManag
er, |
| 572 GrFragmentProcessor** fp) const { | 572 GrFragmentProcessor** fp) const { |
| 573 SkASSERT(context); | 573 SkASSERT(context); |
| 574 | 574 |
| 575 SkMatrix matrix; | 575 SkMatrix matrix; |
| 576 if (!this->getLocalMatrix().invert(&matrix)) { | 576 if (!this->getLocalMatrix().invert(&matrix)) { |
| 577 return false; | 577 return false; |
| 578 } | 578 } |
| 579 if (localMatrix) { | 579 if (localMatrix) { |
| 580 SkMatrix inv; | 580 SkMatrix inv; |
| 581 if (!localMatrix->invert(&inv)) { | 581 if (!localMatrix->invert(&inv)) { |
| 582 return false; | 582 return false; |
| 583 } | 583 } |
| 584 matrix.postConcat(inv); | 584 matrix.postConcat(inv); |
| 585 } | 585 } |
| 586 matrix.postConcat(fPtsToUnit); | 586 matrix.postConcat(fPtsToUnit); |
| 587 | 587 |
| 588 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); | 588 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); |
| 589 *fp = GrLinearGradient::Create(context, shaderDataManager, *this, matrix, fT
ileMode); | 589 *fp = GrLinearGradient::Create(context, procDataManager, *this, matrix, fTil
eMode); |
| 590 | 590 |
| 591 return true; | 591 return true; |
| 592 } | 592 } |
| 593 | 593 |
| 594 #else | 594 #else |
| 595 | 595 |
| 596 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, | 596 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, |
| 597 const SkMatrix*, GrColor*, GrShaderDa
taManager*, | 597 const SkMatrix*, GrColor*, GrProcesso
rDataManager*, |
| 598 GrFragmentProcessor**) const { | 598 GrFragmentProcessor**) const { |
| 599 SkDEBUGFAIL("Should not call in GPU-less build"); | 599 SkDEBUGFAIL("Should not call in GPU-less build"); |
| 600 return false; | 600 return false; |
| 601 } | 601 } |
| 602 | 602 |
| 603 #endif | 603 #endif |
| 604 | 604 |
| 605 #ifndef SK_IGNORE_TO_STRING | 605 #ifndef SK_IGNORE_TO_STRING |
| 606 void SkLinearGradient::toString(SkString* str) const { | 606 void SkLinearGradient::toString(SkString* str) const { |
| 607 str->append("SkLinearGradient ("); | 607 str->append("SkLinearGradient ("); |
| 608 | 608 |
| 609 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); | 609 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
| 610 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); | 610 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
| 611 | 611 |
| 612 this->INHERITED::toString(str); | 612 this->INHERITED::toString(str); |
| 613 | 613 |
| 614 str->append(")"); | 614 str->append(")"); |
| 615 } | 615 } |
| 616 #endif | 616 #endif |
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