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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 525 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 536 SkScalar stopsArray[kMaxRandomGradientColors]; | 536 SkScalar stopsArray[kMaxRandomGradientColors]; |
| 537 SkScalar* stops = stopsArray; | 537 SkScalar* stops = stopsArray; |
| 538 SkShader::TileMode tm; | 538 SkShader::TileMode tm; |
| 539 int colorCount = RandomGradientParams(random, colors, &stops, &tm); | 539 int colorCount = RandomGradientParams(random, colors, &stops, &tm); |
| 540 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, | 540 SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, |
| 541 colors, stops,
colorCount, | 541 colors, stops,
colorCount, |
| 542 tm)); | 542 tm)); |
| 543 SkPaint paint; | 543 SkPaint paint; |
| 544 GrColor paintColor; | 544 GrColor paintColor; |
| 545 GrFragmentProcessor* fp; | 545 GrFragmentProcessor* fp; |
| 546 GrPaint grPaint; |
| 546 SkAssertResult(shader->asFragmentProcessor(context, paint, | 547 SkAssertResult(shader->asFragmentProcessor(context, paint, |
| 547 GrTest::TestMatrix(random), NULL, | 548 GrTest::TestMatrix(random), NULL, |
| 548 &paintColor, &fp)); | 549 &paintColor, grPaint.getShaderDat
aManager(), &fp)); |
| 549 return fp; | 550 return fp; |
| 550 } | 551 } |
| 551 | 552 |
| 552 ///////////////////////////////////////////////////////////////////// | 553 ///////////////////////////////////////////////////////////////////// |
| 553 | 554 |
| 554 void GrGLLinearGradient::emitCode(GrGLFPBuilder* builder, | 555 void GrGLLinearGradient::emitCode(GrGLFPBuilder* builder, |
| 555 const GrFragmentProcessor& fp, | 556 const GrFragmentProcessor& fp, |
| 556 const char* outputColor, | 557 const char* outputColor, |
| 557 const char* inputColor, | 558 const char* inputColor, |
| 558 const TransformedCoordsArray& coords, | 559 const TransformedCoordsArray& coords, |
| 559 const TextureSamplerArray& samplers) { | 560 const TextureSamplerArray& samplers) { |
| 560 const GrLinearGradient& ge = fp.cast<GrLinearGradient>(); | 561 const GrLinearGradient& ge = fp.cast<GrLinearGradient>(); |
| 561 this->emitUniforms(builder, ge); | 562 this->emitUniforms(builder, ge); |
| 562 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); | 563 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); |
| 563 t.append(".x"); | 564 t.append(".x"); |
| 564 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); | 565 this->emitColor(builder, ge, t.c_str(), outputColor, inputColor, samplers); |
| 565 } | 566 } |
| 566 | 567 |
| 567 ///////////////////////////////////////////////////////////////////// | 568 ///////////////////////////////////////////////////////////////////// |
| 568 | 569 |
| 569 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, | 570 bool SkLinearGradient::asFragmentProcessor(GrContext* context, const SkPaint& pa
int, |
| 570 const SkMatrix& viewm, const SkMatrix
* localMatrix, | 571 const SkMatrix& viewm, const SkMatrix
* localMatrix, |
| 571 GrColor* paintColor, GrFragmentProces
sor** fp) const { | 572 GrColor* paintColor, GrShaderDataMana
ger*, |
| 573 GrFragmentProcessor** fp) const { |
| 572 SkASSERT(context); | 574 SkASSERT(context); |
| 573 | 575 |
| 574 SkMatrix matrix; | 576 SkMatrix matrix; |
| 575 if (!this->getLocalMatrix().invert(&matrix)) { | 577 if (!this->getLocalMatrix().invert(&matrix)) { |
| 576 return false; | 578 return false; |
| 577 } | 579 } |
| 578 if (localMatrix) { | 580 if (localMatrix) { |
| 579 SkMatrix inv; | 581 SkMatrix inv; |
| 580 if (!localMatrix->invert(&inv)) { | 582 if (!localMatrix->invert(&inv)) { |
| 581 return false; | 583 return false; |
| 582 } | 584 } |
| 583 matrix.postConcat(inv); | 585 matrix.postConcat(inv); |
| 584 } | 586 } |
| 585 matrix.postConcat(fPtsToUnit); | 587 matrix.postConcat(fPtsToUnit); |
| 586 | 588 |
| 587 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); | 589 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); |
| 588 *fp = GrLinearGradient::Create(context, *this, matrix, fTileMode); | 590 *fp = GrLinearGradient::Create(context, *this, matrix, fTileMode); |
| 589 | 591 |
| 590 return true; | 592 return true; |
| 591 } | 593 } |
| 592 | 594 |
| 593 #else | 595 #else |
| 594 | 596 |
| 595 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, | 597 bool SkLinearGradient::asFragmentProcessor(GrContext*, const SkPaint&, const SkM
atrix&, |
| 596 const SkMatrix*, GrColor*, | 598 const SkMatrix*, GrColor*, GrShaderDa
taManager*, |
| 597 GrFragmentProcessor**) const { | 599 GrFragmentProcessor**) const { |
| 598 SkDEBUGFAIL("Should not call in GPU-less build"); | 600 SkDEBUGFAIL("Should not call in GPU-less build"); |
| 599 return false; | 601 return false; |
| 600 } | 602 } |
| 601 | 603 |
| 602 #endif | 604 #endif |
| 603 | 605 |
| 604 #ifndef SK_IGNORE_TO_STRING | 606 #ifndef SK_IGNORE_TO_STRING |
| 605 void SkLinearGradient::toString(SkString* str) const { | 607 void SkLinearGradient::toString(SkString* str) const { |
| 606 str->append("SkLinearGradient ("); | 608 str->append("SkLinearGradient ("); |
| 607 | 609 |
| 608 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); | 610 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
| 609 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); | 611 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
| 610 | 612 |
| 611 this->INHERITED::toString(str); | 613 this->INHERITED::toString(str); |
| 612 | 614 |
| 613 str->append(")"); | 615 str->append(")"); |
| 614 } | 616 } |
| 615 #endif | 617 #endif |
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