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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 "GrAAConvexPathRenderer.h" | 9 #include "GrAAConvexPathRenderer.h" |
10 | 10 |
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520 | 520 |
521 const GrAttribute* inPosition() const { return fInPosition; } | 521 const GrAttribute* inPosition() const { return fInPosition; } |
522 const GrAttribute* inQuadEdge() const { return fInQuadEdge; } | 522 const GrAttribute* inQuadEdge() const { return fInQuadEdge; } |
523 | 523 |
524 virtual const GrBackendGeometryProcessorFactory& getFactory() const SK_OVERR
IDE { | 524 virtual const GrBackendGeometryProcessorFactory& getFactory() const SK_OVERR
IDE { |
525 return GrTBackendGeometryProcessorFactory<QuadEdgeEffect>::getInstance()
; | 525 return GrTBackendGeometryProcessorFactory<QuadEdgeEffect>::getInstance()
; |
526 } | 526 } |
527 | 527 |
528 class GLProcessor : public GrGLGeometryProcessor { | 528 class GLProcessor : public GrGLGeometryProcessor { |
529 public: | 529 public: |
530 GLProcessor(const GrBackendProcessorFactory& factory, const GrProcessor&
) | 530 GLProcessor(const GrBackendProcessorFactory& factory, |
| 531 const GrGeometryProcessor&, |
| 532 const GrBatchTracker&) |
531 : INHERITED (factory) {} | 533 : INHERITED (factory) {} |
532 | 534 |
533 virtual void emitCode(const EmitArgs& args) SK_OVERRIDE { | 535 virtual void emitCode(const EmitArgs& args) SK_OVERRIDE { |
534 const QuadEdgeEffect& qe = args.fGP.cast<QuadEdgeEffect>(); | 536 const QuadEdgeEffect& qe = args.fGP.cast<QuadEdgeEffect>(); |
535 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); | 537 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
536 | 538 |
537 GrGLVertToFrag v(kVec4f_GrSLType); | 539 GrGLVertToFrag v(kVec4f_GrSLType); |
538 args.fPB->addVarying("QuadEdge", &v); | 540 args.fPB->addVarying("QuadEdge", &v); |
539 vsBuilder->codeAppendf("%s = %s;", v.vsOut(), qe.inQuadEdge()->fName
); | 541 vsBuilder->codeAppendf("%s = %s;", v.vsOut(), qe.inQuadEdge()->fName
); |
540 | 542 |
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564 " 2.0*%s.x*duvdy.x - duvdy.y);"
, | 566 " 2.0*%s.x*duvdy.x - duvdy.y);"
, |
565 v.fsIn(), v.fsIn()); | 567 v.fsIn(), v.fsIn()); |
566 fsBuilder->codeAppendf("edgeAlpha = (%s.x*%s.x - %s.y);", v.fsIn(),
v.fsIn(), | 568 fsBuilder->codeAppendf("edgeAlpha = (%s.x*%s.x - %s.y);", v.fsIn(),
v.fsIn(), |
567 v.fsIn()); | 569 v.fsIn()); |
568 fsBuilder->codeAppendf("edgeAlpha = " | 570 fsBuilder->codeAppendf("edgeAlpha = " |
569 "clamp(0.5 - edgeAlpha / length(gF), 0.0, 1.0
);}"); | 571 "clamp(0.5 - edgeAlpha / length(gF), 0.0, 1.0
);}"); |
570 | 572 |
571 fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage
); | 573 fsBuilder->codeAppendf("%s = vec4(edgeAlpha);", args.fOutputCoverage
); |
572 } | 574 } |
573 | 575 |
574 static inline void GenKey(const GrProcessor&, const GrGLCaps&, GrProcess
orKeyBuilder*) {} | 576 static inline void GenKey(const GrGeometryProcessor&, |
| 577 const GrBatchTracker&, |
| 578 const GrGLCaps&, |
| 579 GrProcessorKeyBuilder*) {} |
575 | 580 |
576 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&)
SK_OVERRIDE {} | 581 virtual void setData(const GrGLProgramDataManager&, |
| 582 const GrGeometryProcessor&, |
| 583 const GrBatchTracker&) SK_OVERRIDE {} |
577 | 584 |
578 private: | 585 private: |
579 typedef GrGLGeometryProcessor INHERITED; | 586 typedef GrGLGeometryProcessor INHERITED; |
580 }; | 587 }; |
581 | 588 |
582 private: | 589 private: |
583 QuadEdgeEffect() { | 590 QuadEdgeEffect() { |
584 fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_Gr
VertexAttribType)); | 591 fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_Gr
VertexAttribType)); |
585 fInQuadEdge = &this->addVertexAttrib(GrAttribute("inQuadEdge", kVec4f_Gr
VertexAttribType)); | 592 fInQuadEdge = &this->addVertexAttrib(GrAttribute("inQuadEdge", kVec4f_Gr
VertexAttribType)); |
586 } | 593 } |
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705 vOffset, // start vertex | 712 vOffset, // start vertex |
706 0, // start index | 713 0, // start index |
707 draw.fVertexCnt, | 714 draw.fVertexCnt, |
708 draw.fIndexCnt, | 715 draw.fIndexCnt, |
709 &devBounds); | 716 &devBounds); |
710 vOffset += draw.fVertexCnt; | 717 vOffset += draw.fVertexCnt; |
711 } | 718 } |
712 | 719 |
713 return true; | 720 return true; |
714 } | 721 } |
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