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| 1 /* | 1 /* |
| 2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 "GrAAHairLinePathRenderer.h" | 8 #include "GrAAHairLinePathRenderer.h" |
| 9 | 9 |
| 10 #include "GrContext.h" | 10 #include "GrContext.h" |
| 11 #include "GrDefaultGeoProcFactory.h" | 11 #include "GrDefaultGeoProcFactory.h" |
| 12 #include "GrDrawState.h" | |
| 13 #include "GrDrawTargetCaps.h" | 12 #include "GrDrawTargetCaps.h" |
| 14 #include "GrGpu.h" | 13 #include "GrGpu.h" |
| 15 #include "GrIndexBuffer.h" | 14 #include "GrIndexBuffer.h" |
| 16 #include "GrPathUtils.h" | 15 #include "GrPathUtils.h" |
| 16 #include "GrPipelineBuilder.h" |
| 17 #include "GrProcessor.h" | 17 #include "GrProcessor.h" |
| 18 #include "SkGeometry.h" | 18 #include "SkGeometry.h" |
| 19 #include "SkStroke.h" | 19 #include "SkStroke.h" |
| 20 #include "SkTemplates.h" | 20 #include "SkTemplates.h" |
| 21 | 21 |
| 22 #include "effects/GrBezierEffect.h" | 22 #include "effects/GrBezierEffect.h" |
| 23 | 23 |
| 24 // quadratics are rendered as 5-sided polys in order to bound the | 24 // quadratics are rendered as 5-sided polys in order to bound the |
| 25 // AA stroke around the center-curve. See comments in push_quad_index_buffer and | 25 // AA stroke around the center-curve. See comments in push_quad_index_buffer and |
| 26 // bloat_quad. Quadratics and conics share an index buffer | 26 // bloat_quad. Quadratics and conics share an index buffer |
| (...skipping 609 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 636 } | 636 } |
| 637 | 637 |
| 638 *vert += kLineSegNumVertices; | 638 *vert += kLineSegNumVertices; |
| 639 } | 639 } |
| 640 | 640 |
| 641 } | 641 } |
| 642 | 642 |
| 643 /////////////////////////////////////////////////////////////////////////////// | 643 /////////////////////////////////////////////////////////////////////////////// |
| 644 | 644 |
| 645 bool GrAAHairLinePathRenderer::createLineGeom(GrDrawTarget* target, | 645 bool GrAAHairLinePathRenderer::createLineGeom(GrDrawTarget* target, |
| 646 GrDrawState* drawState, | 646 GrPipelineBuilder* pipelineBuilder
, |
| 647 const SkMatrix& viewMatrix, | 647 const SkMatrix& viewMatrix, |
| 648 uint8_t coverage, | 648 uint8_t coverage, |
| 649 size_t vertexStride, | 649 size_t vertexStride, |
| 650 GrDrawTarget::AutoReleaseGeometry*
arg, | 650 GrDrawTarget::AutoReleaseGeometry*
arg, |
| 651 SkRect* devBounds, | 651 SkRect* devBounds, |
| 652 const SkPath& path, | 652 const SkPath& path, |
| 653 const PtArray& lines, | 653 const PtArray& lines, |
| 654 int lineCnt) { | 654 int lineCnt) { |
| 655 int vertCnt = kLineSegNumVertices * lineCnt; | 655 int vertCnt = kLineSegNumVertices * lineCnt; |
| 656 | 656 |
| (...skipping 19 matching lines...) Expand all Loading... |
| 676 // All the verts computed by add_line are within sqrt(1^2 + 0.5^2) of the en
d points. | 676 // All the verts computed by add_line are within sqrt(1^2 + 0.5^2) of the en
d points. |
| 677 static const SkScalar kSqrtOfOneAndAQuarter = 1.118f; | 677 static const SkScalar kSqrtOfOneAndAQuarter = 1.118f; |
| 678 // Add a little extra to account for vector normalization precision. | 678 // Add a little extra to account for vector normalization precision. |
| 679 static const SkScalar kOutset = kSqrtOfOneAndAQuarter + SK_Scalar1 / 20; | 679 static const SkScalar kOutset = kSqrtOfOneAndAQuarter + SK_Scalar1 / 20; |
| 680 devBounds->outset(kOutset, kOutset); | 680 devBounds->outset(kOutset, kOutset); |
| 681 | 681 |
| 682 return true; | 682 return true; |
| 683 } | 683 } |
| 684 | 684 |
| 685 bool GrAAHairLinePathRenderer::createBezierGeom(GrDrawTarget* target, | 685 bool GrAAHairLinePathRenderer::createBezierGeom(GrDrawTarget* target, |
| 686 GrDrawState* drawState, | 686 GrPipelineBuilder* pipelineBuild
er, |
| 687 const SkMatrix& viewMatrix, | 687 const SkMatrix& viewMatrix, |
| 688 GrDrawTarget::AutoReleaseGeometr
y* arg, | 688 GrDrawTarget::AutoReleaseGeometr
y* arg, |
| 689 SkRect* devBounds, | 689 SkRect* devBounds, |
| 690 const SkPath& path, | 690 const SkPath& path, |
| 691 const PtArray& quads, | 691 const PtArray& quads, |
| 692 int quadCnt, | 692 int quadCnt, |
| 693 const PtArray& conics, | 693 const PtArray& conics, |
| 694 int conicCnt, | 694 int conicCnt, |
| 695 const IntArray& qSubdivs, | 695 const IntArray& qSubdivs, |
| 696 const FloatArray& cWeights, | 696 const FloatArray& cWeights, |
| (...skipping 39 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 736 } | 736 } |
| 737 | 737 |
| 738 // Start Conics | 738 // Start Conics |
| 739 for (int i = 0; i < conicCnt; ++i) { | 739 for (int i = 0; i < conicCnt; ++i) { |
| 740 add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &verts, devBounds
); | 740 add_conics(&conics[3*i], cWeights[i], toDevice, toSrc, &verts, devBounds
); |
| 741 } | 741 } |
| 742 return true; | 742 return true; |
| 743 } | 743 } |
| 744 | 744 |
| 745 bool GrAAHairLinePathRenderer::canDrawPath(const GrDrawTarget* target, | 745 bool GrAAHairLinePathRenderer::canDrawPath(const GrDrawTarget* target, |
| 746 const GrDrawState* drawState, | 746 const GrPipelineBuilder* pipelineBuil
der, |
| 747 const SkMatrix& viewMatrix, | 747 const SkMatrix& viewMatrix, |
| 748 const SkPath& path, | 748 const SkPath& path, |
| 749 const SkStrokeRec& stroke, | 749 const SkStrokeRec& stroke, |
| 750 bool antiAlias) const { | 750 bool antiAlias) const { |
| 751 if (!antiAlias) { | 751 if (!antiAlias) { |
| 752 return false; | 752 return false; |
| 753 } | 753 } |
| 754 | 754 |
| 755 if (!IsStrokeHairlineOrEquivalent(stroke, viewMatrix, NULL)) { | 755 if (!IsStrokeHairlineOrEquivalent(stroke, viewMatrix, NULL)) { |
| 756 return false; | 756 return false; |
| (...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 794 } | 794 } |
| 795 } | 795 } |
| 796 if (!first) { | 796 if (!first) { |
| 797 return tolDevBounds.contains(actualBounds); | 797 return tolDevBounds.contains(actualBounds); |
| 798 } | 798 } |
| 799 | 799 |
| 800 return true; | 800 return true; |
| 801 } | 801 } |
| 802 | 802 |
| 803 bool GrAAHairLinePathRenderer::onDrawPath(GrDrawTarget* target, | 803 bool GrAAHairLinePathRenderer::onDrawPath(GrDrawTarget* target, |
| 804 GrDrawState* drawState, | 804 GrPipelineBuilder* pipelineBuilder, |
| 805 GrColor color, | 805 GrColor color, |
| 806 const SkMatrix& viewMatrix, | 806 const SkMatrix& viewMatrix, |
| 807 const SkPath& path, | 807 const SkPath& path, |
| 808 const SkStrokeRec& stroke, | 808 const SkStrokeRec& stroke, |
| 809 bool antiAlias) { | 809 bool antiAlias) { |
| 810 SkScalar hairlineCoverage; | 810 SkScalar hairlineCoverage; |
| 811 uint8_t newCoverage = 0xff; | 811 uint8_t newCoverage = 0xff; |
| 812 if (IsStrokeHairlineOrEquivalent(stroke, viewMatrix, &hairlineCoverage)) { | 812 if (IsStrokeHairlineOrEquivalent(stroke, viewMatrix, &hairlineCoverage)) { |
| 813 newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff); | 813 newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff); |
| 814 } | 814 } |
| 815 | 815 |
| 816 SkIRect devClipBounds; | 816 SkIRect devClipBounds; |
| 817 target->getClip()->getConservativeBounds(drawState->getRenderTarget(), &devC
lipBounds); | 817 target->getClip()->getConservativeBounds(pipelineBuilder->getRenderTarget(),
&devClipBounds); |
| 818 | 818 |
| 819 int lineCnt; | 819 int lineCnt; |
| 820 int quadCnt; | 820 int quadCnt; |
| 821 int conicCnt; | 821 int conicCnt; |
| 822 PREALLOC_PTARRAY(128) lines; | 822 PREALLOC_PTARRAY(128) lines; |
| 823 PREALLOC_PTARRAY(128) quads; | 823 PREALLOC_PTARRAY(128) quads; |
| 824 PREALLOC_PTARRAY(128) conics; | 824 PREALLOC_PTARRAY(128) conics; |
| 825 IntArray qSubdivs; | 825 IntArray qSubdivs; |
| 826 FloatArray cWeights; | 826 FloatArray cWeights; |
| 827 quadCnt = generate_lines_and_quads(path, viewMatrix, devClipBounds, | 827 quadCnt = generate_lines_and_quads(path, viewMatrix, devClipBounds, |
| (...skipping 10 matching lines...) Expand all Loading... |
| 838 if (!viewMatrix.invert(&invert)) { | 838 if (!viewMatrix.invert(&invert)) { |
| 839 return false; | 839 return false; |
| 840 } | 840 } |
| 841 } | 841 } |
| 842 | 842 |
| 843 // do lines first | 843 // do lines first |
| 844 if (lineCnt) { | 844 if (lineCnt) { |
| 845 GrDrawTarget::AutoReleaseGeometry arg; | 845 GrDrawTarget::AutoReleaseGeometry arg; |
| 846 SkRect devBounds; | 846 SkRect devBounds; |
| 847 | 847 |
| 848 GrDrawState::AutoRestoreEffects are(drawState); | 848 GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder); |
| 849 uint32_t gpFlags = GrDefaultGeoProcFactory::kPosition_GPType | | 849 uint32_t gpFlags = GrDefaultGeoProcFactory::kPosition_GPType | |
| 850 GrDefaultGeoProcFactory::kCoverage_GPType; | 850 GrDefaultGeoProcFactory::kCoverage_GPType; |
| 851 SkAutoTUnref<const GrGeometryProcessor> gp(GrDefaultGeoProcFactory::Crea
te(gpFlags, | 851 SkAutoTUnref<const GrGeometryProcessor> gp(GrDefaultGeoProcFactory::Crea
te(gpFlags, |
| 852
color, | 852
color, |
| 853
vm, | 853
vm, |
| 854
invert, | 854
invert, |
| 855
false, | 855
false, |
| 856
newCoverage)); | 856
newCoverage)); |
| 857 | 857 |
| 858 if (!this->createLineGeom(target, | 858 if (!this->createLineGeom(target, |
| 859 drawState, | 859 pipelineBuilder, |
| 860 viewMatrix, | 860 viewMatrix, |
| 861 newCoverage, | 861 newCoverage, |
| 862 gp->getVertexStride(), | 862 gp->getVertexStride(), |
| 863 &arg, | 863 &arg, |
| 864 &devBounds, | 864 &devBounds, |
| 865 path, | 865 path, |
| 866 lines, | 866 lines, |
| 867 lineCnt)) { | 867 lineCnt)) { |
| 868 return false; | 868 return false; |
| 869 } | 869 } |
| 870 | 870 |
| 871 // Check devBounds | 871 // Check devBounds |
| 872 SkASSERT(check_bounds<LineVertex>(viewMatrix.hasPerspective() ? viewMatr
ix : SkMatrix::I(), | 872 SkASSERT(check_bounds<LineVertex>(viewMatrix.hasPerspective() ? viewMatr
ix : SkMatrix::I(), |
| 873 devBounds, | 873 devBounds, |
| 874 arg.vertices(), | 874 arg.vertices(), |
| 875 kLineSegNumVertices * lineCnt)); | 875 kLineSegNumVertices * lineCnt)); |
| 876 | 876 |
| 877 { | 877 { |
| 878 target->setIndexSourceToBuffer(fLinesIndexBuffer); | 878 target->setIndexSourceToBuffer(fLinesIndexBuffer); |
| 879 int lines = 0; | 879 int lines = 0; |
| 880 while (lines < lineCnt) { | 880 while (lines < lineCnt) { |
| 881 int n = SkTMin(lineCnt - lines, kLineSegsNumInIdxBuffer); | 881 int n = SkTMin(lineCnt - lines, kLineSegsNumInIdxBuffer); |
| 882 target->drawIndexed(drawState, | 882 target->drawIndexed(pipelineBuilder, |
| 883 gp, | 883 gp, |
| 884 kTriangles_GrPrimitiveType, | 884 kTriangles_GrPrimitiveType, |
| 885 kLineSegNumVertices*lines, // startV | 885 kLineSegNumVertices*lines, // startV |
| 886 0, // startI | 886 0, // startI |
| 887 kLineSegNumVertices*n, // vCount | 887 kLineSegNumVertices*n, // vCount |
| 888 kIdxsPerLineSeg*n, // iCount | 888 kIdxsPerLineSeg*n, // iCount |
| 889 &devBounds); | 889 &devBounds); |
| 890 lines += n; | 890 lines += n; |
| 891 } | 891 } |
| 892 } | 892 } |
| 893 } | 893 } |
| 894 | 894 |
| 895 // then quadratics/conics | 895 // then quadratics/conics |
| 896 if (quadCnt || conicCnt) { | 896 if (quadCnt || conicCnt) { |
| 897 GrDrawTarget::AutoReleaseGeometry arg; | 897 GrDrawTarget::AutoReleaseGeometry arg; |
| 898 SkRect devBounds; | 898 SkRect devBounds; |
| 899 | 899 |
| 900 if (!this->createBezierGeom(target, | 900 if (!this->createBezierGeom(target, |
| 901 drawState, | 901 pipelineBuilder, |
| 902 viewMatrix, | 902 viewMatrix, |
| 903 &arg, | 903 &arg, |
| 904 &devBounds, | 904 &devBounds, |
| 905 path, | 905 path, |
| 906 quads, | 906 quads, |
| 907 quadCnt, | 907 quadCnt, |
| 908 conics, | 908 conics, |
| 909 conicCnt, | 909 conicCnt, |
| 910 qSubdivs, | 910 qSubdivs, |
| 911 cWeights, | 911 cWeights, |
| (...skipping 11 matching lines...) Expand all Loading... |
| 923 | 923 |
| 924 if (quadCnt > 0) { | 924 if (quadCnt > 0) { |
| 925 SkAutoTUnref<GrGeometryProcessor> hairQuadProcessor( | 925 SkAutoTUnref<GrGeometryProcessor> hairQuadProcessor( |
| 926 GrQuadEffect::Create(color, | 926 GrQuadEffect::Create(color, |
| 927 vm, | 927 vm, |
| 928 kHairlineAA_GrProcessorEdgeType, | 928 kHairlineAA_GrProcessorEdgeType, |
| 929 *target->caps(), | 929 *target->caps(), |
| 930 invert, | 930 invert, |
| 931 newCoverage)); | 931 newCoverage)); |
| 932 SkASSERT(hairQuadProcessor); | 932 SkASSERT(hairQuadProcessor); |
| 933 GrDrawState::AutoRestoreEffects are(drawState); | 933 GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder); |
| 934 target->setIndexSourceToBuffer(fQuadsIndexBuffer); | 934 target->setIndexSourceToBuffer(fQuadsIndexBuffer); |
| 935 | 935 |
| 936 int quads = 0; | 936 int quads = 0; |
| 937 while (quads < quadCnt) { | 937 while (quads < quadCnt) { |
| 938 int n = SkTMin(quadCnt - quads, kQuadsNumInIdxBuffer); | 938 int n = SkTMin(quadCnt - quads, kQuadsNumInIdxBuffer); |
| 939 target->drawIndexed(drawState, | 939 target->drawIndexed(pipelineBuilder, |
| 940 hairQuadProcessor, | 940 hairQuadProcessor, |
| 941 kTriangles_GrPrimitiveType, | 941 kTriangles_GrPrimitiveType, |
| 942 kQuadNumVertices*quads, // sta
rtV | 942 kQuadNumVertices*quads, // sta
rtV |
| 943 0, // sta
rtI | 943 0, // sta
rtI |
| 944 kQuadNumVertices*n, // vCo
unt | 944 kQuadNumVertices*n, // vCo
unt |
| 945 kIdxsPerQuad*n, // iCo
unt | 945 kIdxsPerQuad*n, // iCo
unt |
| 946 &devBounds); | 946 &devBounds); |
| 947 quads += n; | 947 quads += n; |
| 948 } | 948 } |
| 949 } | 949 } |
| 950 | 950 |
| 951 if (conicCnt > 0) { | 951 if (conicCnt > 0) { |
| 952 SkAutoTUnref<GrGeometryProcessor> hairConicProcessor( | 952 SkAutoTUnref<GrGeometryProcessor> hairConicProcessor( |
| 953 GrConicEffect::Create(color, vm, kHairlineAA_GrProcessorEdge
Type, | 953 GrConicEffect::Create(color, vm, kHairlineAA_GrProcessorEdge
Type, |
| 954 *target->caps(), invert, newCoverage))
; | 954 *target->caps(), invert, newCoverage))
; |
| 955 SkASSERT(hairConicProcessor); | 955 SkASSERT(hairConicProcessor); |
| 956 GrDrawState::AutoRestoreEffects are(drawState); | 956 GrPipelineBuilder::AutoRestoreEffects are(pipelineBuilder); |
| 957 target->setIndexSourceToBuffer(fQuadsIndexBuffer); | 957 target->setIndexSourceToBuffer(fQuadsIndexBuffer); |
| 958 | 958 |
| 959 int conics = 0; | 959 int conics = 0; |
| 960 while (conics < conicCnt) { | 960 while (conics < conicCnt) { |
| 961 int n = SkTMin(conicCnt - conics, kQuadsNumInIdxBuffer); | 961 int n = SkTMin(conicCnt - conics, kQuadsNumInIdxBuffer); |
| 962 target->drawIndexed(drawState, | 962 target->drawIndexed(pipelineBuilder, |
| 963 hairConicProcessor, | 963 hairConicProcessor, |
| 964 kTriangles_GrPrimitiveType, | 964 kTriangles_GrPrimitiveType, |
| 965 kQuadNumVertices*(quadCnt + conics), // sta
rtV | 965 kQuadNumVertices*(quadCnt + conics), // sta
rtV |
| 966 0, // sta
rtI | 966 0, // sta
rtI |
| 967 kQuadNumVertices*n, // vCo
unt | 967 kQuadNumVertices*n, // vCo
unt |
| 968 kIdxsPerQuad*n, // iCo
unt | 968 kIdxsPerQuad*n, // iCo
unt |
| 969 &devBounds); | 969 &devBounds); |
| 970 conics += n; | 970 conics += n; |
| 971 } | 971 } |
| 972 } | 972 } |
| 973 } | 973 } |
| 974 | 974 |
| 975 target->resetIndexSource(); | 975 target->resetIndexSource(); |
| 976 | 976 |
| 977 return true; | 977 return true; |
| 978 } | 978 } |
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