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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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453 toggle = next_dither_toggle16(toggle); | 453 toggle = next_dither_toggle16(toggle); |
454 | 454 |
455 dstX += SK_Scalar1; | 455 dstX += SK_Scalar1; |
456 } while (--count != 0); | 456 } while (--count != 0); |
457 } | 457 } |
458 } | 458 } |
459 | 459 |
460 #if SK_SUPPORT_GPU | 460 #if SK_SUPPORT_GPU |
461 | 461 |
462 #include "GrTBackendEffectFactory.h" | 462 #include "GrTBackendEffectFactory.h" |
463 #include "gl/GrGLShaderBuilder.h" | 463 #include "gl/builders/GrGLProgramBuilder.h" |
464 #include "SkGr.h" | 464 #include "SkGr.h" |
465 | 465 |
466 ///////////////////////////////////////////////////////////////////// | 466 ///////////////////////////////////////////////////////////////////// |
467 | 467 |
468 class GrGLLinearGradient : public GrGLGradientEffect { | 468 class GrGLLinearGradient : public GrGLGradientEffect { |
469 public: | 469 public: |
470 | 470 |
471 GrGLLinearGradient(const GrBackendEffectFactory& factory, const GrDrawEffect
&) | 471 GrGLLinearGradient(const GrBackendEffectFactory& factory, const GrDrawEffect
&) |
472 : INHERITED (factory) { } | 472 : INHERITED (factory) { } |
473 | 473 |
474 virtual ~GrGLLinearGradient() { } | 474 virtual ~GrGLLinearGradient() { } |
475 | 475 |
476 virtual void emitCode(GrGLShaderBuilder*, | 476 virtual void emitCode(GrGLProgramBuilder*, |
477 const GrDrawEffect&, | 477 const GrDrawEffect&, |
478 const GrEffectKey&, | 478 const GrEffectKey&, |
479 const char* outputColor, | 479 const char* outputColor, |
480 const char* inputColor, | 480 const char* inputColor, |
481 const TransformedCoordsArray&, | 481 const TransformedCoordsArray&, |
482 const TextureSamplerArray&) SK_OVERRIDE; | 482 const TextureSamplerArray&) SK_OVERRIDE; |
483 | 483 |
484 static void GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&, GrEffect
KeyBuilder* b) { | 484 static void GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&, GrEffect
KeyBuilder* b) { |
485 b->add32(GenBaseGradientKey(drawEffect)); | 485 b->add32(GenBaseGradientKey(drawEffect)); |
486 } | 486 } |
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543 tm)); | 543 tm)); |
544 SkPaint paint; | 544 SkPaint paint; |
545 GrColor paintColor; | 545 GrColor paintColor; |
546 GrEffect* effect; | 546 GrEffect* effect; |
547 SkAssertResult(shader->asNewEffect(context, paint, NULL, &paintColor, &effec
t)); | 547 SkAssertResult(shader->asNewEffect(context, paint, NULL, &paintColor, &effec
t)); |
548 return effect; | 548 return effect; |
549 } | 549 } |
550 | 550 |
551 ///////////////////////////////////////////////////////////////////// | 551 ///////////////////////////////////////////////////////////////////// |
552 | 552 |
553 void GrGLLinearGradient::emitCode(GrGLShaderBuilder* builder, | 553 void GrGLLinearGradient::emitCode(GrGLProgramBuilder* builder, |
554 const GrDrawEffect&, | 554 const GrDrawEffect&, |
555 const GrEffectKey& key, | 555 const GrEffectKey& key, |
556 const char* outputColor, | 556 const char* outputColor, |
557 const char* inputColor, | 557 const char* inputColor, |
558 const TransformedCoordsArray& coords, | 558 const TransformedCoordsArray& coords, |
559 const TextureSamplerArray& samplers) { | 559 const TextureSamplerArray& samplers) { |
560 uint32_t baseKey = key.get32(0); | 560 uint32_t baseKey = key.get32(0); |
561 this->emitUniforms(builder, baseKey); | 561 this->emitUniforms(builder, baseKey); |
562 SkString t = builder->ensureFSCoords2D(coords, 0); | 562 SkString t = builder->getFragmentShaderBuilder()->ensureFSCoords2D(coords, 0
); |
563 t.append(".x"); | 563 t.append(".x"); |
564 this->emitColor(builder, t.c_str(), baseKey, outputColor, inputColor, sample
rs); | 564 this->emitColor(builder, t.c_str(), baseKey, outputColor, inputColor, sample
rs); |
565 } | 565 } |
566 | 566 |
567 ///////////////////////////////////////////////////////////////////// | 567 ///////////////////////////////////////////////////////////////////// |
568 | 568 |
569 bool SkLinearGradient::asNewEffect(GrContext* context, const SkPaint& paint, | 569 bool SkLinearGradient::asNewEffect(GrContext* context, const SkPaint& paint, |
570 const SkMatrix* localMatrix, GrColor* paintCo
lor, | 570 const SkMatrix* localMatrix, GrColor* paintCo
lor, |
571 GrEffect** effect) const { | 571 GrEffect** effect) const { |
572 SkASSERT(NULL != context); | 572 SkASSERT(NULL != context); |
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606 str->append("SkLinearGradient ("); | 606 str->append("SkLinearGradient ("); |
607 | 607 |
608 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); | 608 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
609 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); | 609 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
610 | 610 |
611 this->INHERITED::toString(str); | 611 this->INHERITED::toString(str); |
612 | 612 |
613 str->append(")"); | 613 str->append(")"); |
614 } | 614 } |
615 #endif | 615 #endif |
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