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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 "SkRadialGradient.h" | 9 #include "SkRadialGradient.h" |
10 #include "SkRadialGradient_Table.h" | 10 #include "SkRadialGradient_Table.h" |
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435 | 435 |
436 }; | 436 }; |
437 | 437 |
438 ///////////////////////////////////////////////////////////////////// | 438 ///////////////////////////////////////////////////////////////////// |
439 | 439 |
440 class GrRadialGradient : public GrGradientEffect { | 440 class GrRadialGradient : public GrGradientEffect { |
441 public: | 441 public: |
442 static GrFragmentProcessor* Create(GrContext* ctx, | 442 static GrFragmentProcessor* Create(GrContext* ctx, |
443 const SkRadialGradient& shader, | 443 const SkRadialGradient& shader, |
444 const SkMatrix& matrix, | 444 const SkMatrix& matrix, |
445 SkShader::TileMode tm) { | 445 SkShader::TileMode tm, GrRenderTarget* ds
t) { |
446 return new GrRadialGradient(ctx, shader, matrix, tm); | 446 return new GrRadialGradient(ctx, shader, matrix, tm, dst); |
447 } | 447 } |
448 | 448 |
449 virtual ~GrRadialGradient() { } | 449 virtual ~GrRadialGradient() { } |
450 | 450 |
451 const char* name() const override { return "Radial Gradient"; } | 451 const char* name() const override { return "Radial Gradient"; } |
452 | 452 |
453 private: | 453 private: |
454 GrRadialGradient(GrContext* ctx, | 454 GrRadialGradient(GrContext* ctx, |
455 const SkRadialGradient& shader, | 455 const SkRadialGradient& shader, |
456 const SkMatrix& matrix, | 456 const SkMatrix& matrix, |
457 SkShader::TileMode tm) | 457 SkShader::TileMode tm, GrRenderTarget* dst) |
458 : INHERITED(ctx, shader, matrix, tm) { | 458 : INHERITED(ctx, shader, matrix, tm, dst) { |
459 this->initClassID<GrRadialGradient>(); | 459 this->initClassID<GrRadialGradient>(); |
460 } | 460 } |
461 | 461 |
462 GrGLFragmentProcessor* onCreateGLInstance() const override { | 462 GrGLFragmentProcessor* onCreateGLInstance() const override { |
463 return new GrGLRadialGradient(*this); | 463 return new GrGLRadialGradient(*this); |
464 } | 464 } |
465 | 465 |
466 virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, | 466 virtual void onGetGLProcessorKey(const GrGLSLCaps& caps, |
467 GrProcessorKeyBuilder* b) const override { | 467 GrProcessorKeyBuilder* b) const override { |
468 GrGLRadialGradient::GenKey(*this, caps, b); | 468 GrGLRadialGradient::GenKey(*this, caps, b); |
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483 | 483 |
484 SkColor colors[kMaxRandomGradientColors]; | 484 SkColor colors[kMaxRandomGradientColors]; |
485 SkScalar stopsArray[kMaxRandomGradientColors]; | 485 SkScalar stopsArray[kMaxRandomGradientColors]; |
486 SkScalar* stops = stopsArray; | 486 SkScalar* stops = stopsArray; |
487 SkShader::TileMode tm; | 487 SkShader::TileMode tm; |
488 int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); | 488 int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm); |
489 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateRadial(center, radius, | 489 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateRadial(center, radius, |
490 colors, stops,
colorCount, | 490 colors, stops,
colorCount, |
491 tm)); | 491 tm)); |
492 const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, | 492 const GrFragmentProcessor* fp = shader->asFragmentProcessor(d->fContext, |
493 GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality); | 493 GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality, NULL); |
494 GrAlwaysAssert(fp); | 494 GrAlwaysAssert(fp); |
495 return fp; | 495 return fp; |
496 } | 496 } |
497 | 497 |
498 ///////////////////////////////////////////////////////////////////// | 498 ///////////////////////////////////////////////////////////////////// |
499 | 499 |
500 void GrGLRadialGradient::emitCode(EmitArgs& args) { | 500 void GrGLRadialGradient::emitCode(EmitArgs& args) { |
501 const GrRadialGradient& ge = args.fFp.cast<GrRadialGradient>(); | 501 const GrRadialGradient& ge = args.fFp.cast<GrRadialGradient>(); |
502 this->emitUniforms(args.fBuilder, ge); | 502 this->emitUniforms(args.fBuilder, ge); |
503 SkString t("length("); | 503 SkString t("length("); |
504 t.append(args.fBuilder->getFragmentShaderBuilder()->ensureFSCoords2D(args.fC
oords, 0)); | 504 t.append(args.fBuilder->getFragmentShaderBuilder()->ensureFSCoords2D(args.fC
oords, 0)); |
505 t.append(")"); | 505 t.append(")"); |
506 this->emitColor(args.fBuilder, ge, t.c_str(), args.fOutputColor, args.fInput
Color, | 506 this->emitColor(args.fBuilder, ge, t.c_str(), args.fOutputColor, args.fInput
Color, |
507 args.fSamplers); | 507 args.fSamplers); |
508 } | 508 } |
509 | 509 |
510 ///////////////////////////////////////////////////////////////////// | 510 ///////////////////////////////////////////////////////////////////// |
511 | 511 |
512 const GrFragmentProcessor* SkRadialGradient::asFragmentProcessor( | 512 const GrFragmentProcessor* SkRadialGradient::asFragmentProcessor( |
513 GrContext* context, | 513 GrContext* context, |
514 const SkMatrix& viewM, | 514 const SkMatrix& viewM, |
515 const SkMatrix* localMatrix, | 515 const SkMatrix* localMatrix, |
516 SkFilterQuality) const { | 516 SkFilterQuality, |
| 517 GrRenderTarget* dst) const { |
517 SkASSERT(context); | 518 SkASSERT(context); |
518 | 519 |
519 SkMatrix matrix; | 520 SkMatrix matrix; |
520 if (!this->getLocalMatrix().invert(&matrix)) { | 521 if (!this->getLocalMatrix().invert(&matrix)) { |
521 return nullptr; | 522 return nullptr; |
522 } | 523 } |
523 if (localMatrix) { | 524 if (localMatrix) { |
524 SkMatrix inv; | 525 SkMatrix inv; |
525 if (!localMatrix->invert(&inv)) { | 526 if (!localMatrix->invert(&inv)) { |
526 return nullptr; | 527 return nullptr; |
527 } | 528 } |
528 matrix.postConcat(inv); | 529 matrix.postConcat(inv); |
529 } | 530 } |
530 matrix.postConcat(fPtsToUnit); | 531 matrix.postConcat(fPtsToUnit); |
531 SkAutoTUnref<const GrFragmentProcessor> inner( | 532 SkAutoTUnref<const GrFragmentProcessor> inner( |
532 GrRadialGradient::Create(context, *this, matrix, fTileMode)); | 533 GrRadialGradient::Create(context, *this, matrix, fTileMode, dst)); |
533 return GrFragmentProcessor::MulOutputByInputAlpha(inner); | 534 return GrFragmentProcessor::MulOutputByInputAlpha(inner); |
534 } | 535 } |
535 | 536 |
536 #endif | 537 #endif |
537 | 538 |
538 #ifndef SK_IGNORE_TO_STRING | 539 #ifndef SK_IGNORE_TO_STRING |
539 void SkRadialGradient::toString(SkString* str) const { | 540 void SkRadialGradient::toString(SkString* str) const { |
540 str->append("SkRadialGradient: ("); | 541 str->append("SkRadialGradient: ("); |
541 | 542 |
542 str->append("center: ("); | 543 str->append("center: ("); |
543 str->appendScalar(fCenter.fX); | 544 str->appendScalar(fCenter.fX); |
544 str->append(", "); | 545 str->append(", "); |
545 str->appendScalar(fCenter.fY); | 546 str->appendScalar(fCenter.fY); |
546 str->append(") radius: "); | 547 str->append(") radius: "); |
547 str->appendScalar(fRadius); | 548 str->appendScalar(fRadius); |
548 str->append(" "); | 549 str->append(" "); |
549 | 550 |
550 this->INHERITED::toString(str); | 551 this->INHERITED::toString(str); |
551 | 552 |
552 str->append(")"); | 553 str->append(")"); |
553 } | 554 } |
554 #endif | 555 #endif |
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