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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "GrDashingEffect.h" | 8 #include "GrDashingEffect.h" |
| 9 | 9 |
| 10 #include "../GrAARectRenderer.h" | 10 #include "../GrAARectRenderer.h" |
| 11 | 11 |
| 12 #include "GrGeometryProcessor.h" | 12 #include "GrGeometryProcessor.h" |
| 13 #include "gl/builders/GrGLFullProgramBuilder.h" | 13 #include "gl/builders/GrGLSkiaProgramBuilder.h" |
| 14 #include "gl/GrGLProcessor.h" | 14 #include "gl/GrGLProcessor.h" |
| 15 #include "gl/GrGLGeometryProcessor.h" | 15 #include "gl/GrGLGeometryProcessor.h" |
| 16 #include "gl/GrGLSL.h" | 16 #include "gl/GrGLSL.h" |
| 17 #include "GrContext.h" | 17 #include "GrContext.h" |
| 18 #include "GrCoordTransform.h" | 18 #include "GrCoordTransform.h" |
| 19 #include "GrDrawTarget.h" | 19 #include "GrDrawTarget.h" |
| 20 #include "GrDrawTargetCaps.h" | 20 #include "GrDrawTargetCaps.h" |
| 21 #include "GrProcessor.h" | 21 #include "GrProcessor.h" |
| 22 #include "GrGpu.h" | 22 #include "GrGpu.h" |
| 23 #include "GrStrokeInfo.h" | 23 #include "GrStrokeInfo.h" |
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| 475 | 475 |
| 476 typedef GrGeometryProcessor INHERITED; | 476 typedef GrGeometryProcessor INHERITED; |
| 477 }; | 477 }; |
| 478 | 478 |
| 479 ////////////////////////////////////////////////////////////////////////////// | 479 ////////////////////////////////////////////////////////////////////////////// |
| 480 | 480 |
| 481 class GLDashingCircleEffect : public GrGLGeometryProcessor { | 481 class GLDashingCircleEffect : public GrGLGeometryProcessor { |
| 482 public: | 482 public: |
| 483 GLDashingCircleEffect(const GrBackendProcessorFactory&, const GrProcessor&); | 483 GLDashingCircleEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
| 484 | 484 |
| 485 virtual void emitCode(GrGLFullProgramBuilder* builder, | 485 virtual void emitCode(GrGLGeometryProcessorProgramBuilder* builder, |
| 486 const GrGeometryProcessor& geometryProcessor, | 486 const GrGeometryProcessor& geometryProcessor, |
| 487 const GrProcessorKey& key, | 487 const GrProcessorKey& key, |
| 488 const char* outputColor, | 488 const char* outputColor, |
| 489 const char* inputColor, | 489 const char* inputColor, |
| 490 const TransformedCoordsArray&, | 490 const TransformedCoordsArray&, |
| 491 const TextureSamplerArray&) SK_OVERRIDE; | 491 const TextureSamplerArray&) SK_OVERRIDE; |
| 492 | 492 |
| 493 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKe
yBuilder*); | 493 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKe
yBuilder*); |
| 494 | 494 |
| 495 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; | 495 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; |
| 496 | 496 |
| 497 private: | 497 private: |
| 498 GrGLProgramDataManager::UniformHandle fParamUniform; | 498 GrGLProgramDataManager::UniformHandle fParamUniform; |
| 499 SkScalar fPrevRadius; | 499 SkScalar fPrevRadius; |
| 500 SkScalar fPrevCenterX; | 500 SkScalar fPrevCenterX; |
| 501 SkScalar fPrevIntervalLength; | 501 SkScalar fPrevIntervalLength; |
| 502 typedef GrGLGeometryProcessor INHERITED; | 502 typedef GrGLGeometryProcessor INHERITED; |
| 503 }; | 503 }; |
| 504 | 504 |
| 505 GLDashingCircleEffect::GLDashingCircleEffect(const GrBackendProcessorFactory& fa
ctory, | 505 GLDashingCircleEffect::GLDashingCircleEffect(const GrBackendProcessorFactory& fa
ctory, |
| 506 const GrProcessor&) | 506 const GrProcessor&) |
| 507 : INHERITED (factory) { | 507 : INHERITED (factory) { |
| 508 fPrevRadius = SK_ScalarMin; | 508 fPrevRadius = SK_ScalarMin; |
| 509 fPrevCenterX = SK_ScalarMin; | 509 fPrevCenterX = SK_ScalarMin; |
| 510 fPrevIntervalLength = SK_ScalarMax; | 510 fPrevIntervalLength = SK_ScalarMax; |
| 511 } | 511 } |
| 512 | 512 |
| 513 void GLDashingCircleEffect::emitCode(GrGLFullProgramBuilder* builder, | 513 void GLDashingCircleEffect::emitCode(GrGLGeometryProcessorProgramBuilder* builde
r, |
| 514 const GrGeometryProcessor& geometryProcessor
, | 514 const GrGeometryProcessor& geometryProcessor
, |
| 515 const GrProcessorKey& key, | 515 const GrProcessorKey& key, |
| 516 const char* outputColor, | 516 const char* outputColor, |
| 517 const char* inputColor, | 517 const char* inputColor, |
| 518 const TransformedCoordsArray&, | 518 const TransformedCoordsArray&, |
| 519 const TextureSamplerArray& samplers) { | 519 const TextureSamplerArray& samplers) { |
| 520 const DashingCircleEffect& dce = geometryProcessor.cast<DashingCircleEffect>
(); | 520 const DashingCircleEffect& dce = geometryProcessor.cast<DashingCircleEffect>
(); |
| 521 const char *paramName; | 521 const char *paramName; |
| 522 // The param uniforms, xyz, refer to circle radius - 0.5, cicles center x co
ord, and | 522 // The param uniforms, xyz, refer to circle radius - 0.5, cicles center x co
ord, and |
| 523 // the total interval length of the dash. | 523 // the total interval length of the dash. |
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| 686 | 686 |
| 687 typedef GrGeometryProcessor INHERITED; | 687 typedef GrGeometryProcessor INHERITED; |
| 688 }; | 688 }; |
| 689 | 689 |
| 690 ////////////////////////////////////////////////////////////////////////////// | 690 ////////////////////////////////////////////////////////////////////////////// |
| 691 | 691 |
| 692 class GLDashingLineEffect : public GrGLGeometryProcessor { | 692 class GLDashingLineEffect : public GrGLGeometryProcessor { |
| 693 public: | 693 public: |
| 694 GLDashingLineEffect(const GrBackendProcessorFactory&, const GrProcessor&); | 694 GLDashingLineEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
| 695 | 695 |
| 696 virtual void emitCode(GrGLFullProgramBuilder* builder, | 696 virtual void emitCode(GrGLGeometryProcessorProgramBuilder* builder, |
| 697 const GrGeometryProcessor& geometryProcessor, | 697 const GrGeometryProcessor& geometryProcessor, |
| 698 const GrProcessorKey& key, | 698 const GrProcessorKey& key, |
| 699 const char* outputColor, | 699 const char* outputColor, |
| 700 const char* inputColor, | 700 const char* inputColor, |
| 701 const TransformedCoordsArray&, | 701 const TransformedCoordsArray&, |
| 702 const TextureSamplerArray&) SK_OVERRIDE; | 702 const TextureSamplerArray&) SK_OVERRIDE; |
| 703 | 703 |
| 704 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKe
yBuilder*); | 704 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKe
yBuilder*); |
| 705 | 705 |
| 706 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; | 706 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O
VERRIDE; |
| 707 | 707 |
| 708 private: | 708 private: |
| 709 GrGLProgramDataManager::UniformHandle fRectUniform; | 709 GrGLProgramDataManager::UniformHandle fRectUniform; |
| 710 GrGLProgramDataManager::UniformHandle fIntervalUniform; | 710 GrGLProgramDataManager::UniformHandle fIntervalUniform; |
| 711 SkRect fPrevRect; | 711 SkRect fPrevRect; |
| 712 SkScalar fPrevIntervalLength; | 712 SkScalar fPrevIntervalLength; |
| 713 typedef GrGLGeometryProcessor INHERITED; | 713 typedef GrGLGeometryProcessor INHERITED; |
| 714 }; | 714 }; |
| 715 | 715 |
| 716 GLDashingLineEffect::GLDashingLineEffect(const GrBackendProcessorFactory& factor
y, | 716 GLDashingLineEffect::GLDashingLineEffect(const GrBackendProcessorFactory& factor
y, |
| 717 const GrProcessor&) | 717 const GrProcessor&) |
| 718 : INHERITED (factory) { | 718 : INHERITED (factory) { |
| 719 fPrevRect.fLeft = SK_ScalarNaN; | 719 fPrevRect.fLeft = SK_ScalarNaN; |
| 720 fPrevIntervalLength = SK_ScalarMax; | 720 fPrevIntervalLength = SK_ScalarMax; |
| 721 } | 721 } |
| 722 | 722 |
| 723 void GLDashingLineEffect::emitCode(GrGLFullProgramBuilder* builder, | 723 void GLDashingLineEffect::emitCode(GrGLGeometryProcessorProgramBuilder* builder, |
| 724 const GrGeometryProcessor& geometryProcessor, | 724 const GrGeometryProcessor& geometryProcessor, |
| 725 const GrProcessorKey& key, | 725 const GrProcessorKey& key, |
| 726 const char* outputColor, | 726 const char* outputColor, |
| 727 const char* inputColor, | 727 const char* inputColor, |
| 728 const TransformedCoordsArray&, | 728 const TransformedCoordsArray&, |
| 729 const TextureSamplerArray& samplers) { | 729 const TextureSamplerArray& samplers) { |
| 730 const DashingLineEffect& de = geometryProcessor.cast<DashingLineEffect>(); | 730 const DashingLineEffect& de = geometryProcessor.cast<DashingLineEffect>(); |
| 731 const char *rectName; | 731 const char *rectName; |
| 732 // The rect uniform's xyzw refer to (left + 0.5, top + 0.5, right - 0.5, bot
tom - 0.5), | 732 // The rect uniform's xyzw refer to (left + 0.5, top + 0.5, right - 0.5, bot
tom - 0.5), |
| 733 // respectively. | 733 // respectively. |
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| 865 switch (cap) { | 865 switch (cap) { |
| 866 case GrDashingEffect::kRound_DashCap: | 866 case GrDashingEffect::kRound_DashCap: |
| 867 return DashingCircleEffect::Create(edgeType, info, SkScalarHalf(stro
keWidth)); | 867 return DashingCircleEffect::Create(edgeType, info, SkScalarHalf(stro
keWidth)); |
| 868 case GrDashingEffect::kNonRound_DashCap: | 868 case GrDashingEffect::kNonRound_DashCap: |
| 869 return DashingLineEffect::Create(edgeType, info, strokeWidth); | 869 return DashingLineEffect::Create(edgeType, info, strokeWidth); |
| 870 default: | 870 default: |
| 871 SkFAIL("Unexpected dashed cap."); | 871 SkFAIL("Unexpected dashed cap."); |
| 872 } | 872 } |
| 873 return NULL; | 873 return NULL; |
| 874 } | 874 } |
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