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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 | 8 |
9 #include "GrStencilAndCoverPathRenderer.h" | 9 #include "GrStencilAndCoverPathRenderer.h" |
10 #include "GrCaps.h" | 10 #include "GrCaps.h" |
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29 GrStencilAndCoverPathRenderer::GrStencilAndCoverPathRenderer(GrResourceProvider*
resourceProvider) | 29 GrStencilAndCoverPathRenderer::GrStencilAndCoverPathRenderer(GrResourceProvider*
resourceProvider) |
30 : fResourceProvider(resourceProvider) { | 30 : fResourceProvider(resourceProvider) { |
31 } | 31 } |
32 | 32 |
33 bool GrStencilAndCoverPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) c
onst { | 33 bool GrStencilAndCoverPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) c
onst { |
34 // GrPath doesn't support hairline paths. Also, an arbitrary path effect cou
ld change | 34 // GrPath doesn't support hairline paths. Also, an arbitrary path effect cou
ld change |
35 // the style type to hairline. | 35 // the style type to hairline. |
36 if (args.fStyle->hasNonDashPathEffect() || args.fStyle->strokeRec().isHairli
neStyle()) { | 36 if (args.fStyle->hasNonDashPathEffect() || args.fStyle->strokeRec().isHairli
neStyle()) { |
37 return false; | 37 return false; |
38 } | 38 } |
39 if (args.fHasUserStencilSettings) { | 39 if (!args.fIsStencilDisabled) { |
40 return false; | 40 return false; |
41 } | 41 } |
42 if (args.fAntiAlias) { | 42 if (args.fAntiAlias) { |
43 return args.fIsStencilBufferMSAA; | 43 return args.fIsStencilBufferMSAA; |
44 } else { | 44 } else { |
45 return true; // doesn't do per-path AA, relies on the target having MSAA | 45 return true; // doesn't do per-path AA, relies on the target having MSAA |
46 } | 46 } |
47 } | 47 } |
48 | 48 |
49 static GrPath* get_gr_path(GrResourceProvider* resourceProvider, const SkPath& s
kPath, | 49 static GrPath* get_gr_path(GrResourceProvider* resourceProvider, const SkPath& s
kPath, |
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73 } | 73 } |
74 | 74 |
75 bool GrStencilAndCoverPathRenderer::onDrawPath(const DrawPathArgs& args) { | 75 bool GrStencilAndCoverPathRenderer::onDrawPath(const DrawPathArgs& args) { |
76 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), | 76 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), |
77 "GrStencilAndCoverPathRenderer::onDrawPath"); | 77 "GrStencilAndCoverPathRenderer::onDrawPath"); |
78 SkASSERT(!args.fStyle->strokeRec().isHairlineStyle()); | 78 SkASSERT(!args.fStyle->strokeRec().isHairlineStyle()); |
79 const SkPath& path = *args.fPath; | 79 const SkPath& path = *args.fPath; |
80 GrPipelineBuilder* pipelineBuilder = args.fPipelineBuilder; | 80 GrPipelineBuilder* pipelineBuilder = args.fPipelineBuilder; |
81 const SkMatrix& viewMatrix = *args.fViewMatrix; | 81 const SkMatrix& viewMatrix = *args.fViewMatrix; |
82 | 82 |
83 SkASSERT(!pipelineBuilder->hasUserStencilSettings()); | 83 SkASSERT(pipelineBuilder->getStencil().isDisabled()); |
84 | 84 |
85 if (args.fAntiAlias) { | 85 if (args.fAntiAlias) { |
86 SkASSERT(pipelineBuilder->getRenderTarget()->isStencilBufferMultisampled
()); | 86 SkASSERT(pipelineBuilder->getRenderTarget()->isStencilBufferMultisampled
()); |
87 pipelineBuilder->enableState(GrPipelineBuilder::kHWAntialias_Flag); | 87 pipelineBuilder->enableState(GrPipelineBuilder::kHWAntialias_Flag); |
88 } | 88 } |
89 | 89 |
90 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, path, *args.fStyle)); | 90 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, path, *args.fStyle)); |
91 | 91 |
92 if (path.isInverseFillType()) { | 92 if (path.isInverseFillType()) { |
93 static constexpr GrUserStencilSettings kInvertedCoverPass( | 93 static constexpr GrStencilSettings kInvertedStencilPass( |
94 GrUserStencilSettings::StaticInit< | 94 kKeep_StencilOp, |
95 0x0000, | 95 kZero_StencilOp, |
96 // We know our rect will hit pixels outside the clip and the use
r bits will be 0 | 96 // We know our rect will hit pixels outside the clip and the user bi
ts will be 0 |
97 // outside the clip. So we can't just fill where the user bits a
re 0. We also need | 97 // outside the clip. So we can't just fill where the user bits are 0
. We also need to |
98 // to check that the clip bit is set. | 98 // check that the clip bit is set. |
99 GrUserStencilTest::kEqualIfInClip, | 99 kEqualIfInClip_StencilFunc, |
100 0xffff, | 100 0xffff, |
101 GrUserStencilOp::kKeep, | 101 0x0000, |
102 GrUserStencilOp::kZero, | 102 0xffff); |
103 0xffff>() | |
104 ); | |
105 | 103 |
106 | 104 pipelineBuilder->setStencil(kInvertedStencilPass); |
107 pipelineBuilder->setUserStencil(&kInvertedCoverPass); | |
108 | 105 |
109 // fake inverse with a stencil and cover | 106 // fake inverse with a stencil and cover |
110 args.fTarget->stencilPath(*pipelineBuilder, viewMatrix, p, p->getFillTyp
e()); | 107 args.fTarget->stencilPath(*pipelineBuilder, viewMatrix, p, p->getFillTyp
e()); |
111 | 108 |
112 SkMatrix invert = SkMatrix::I(); | 109 SkMatrix invert = SkMatrix::I(); |
113 SkRect bounds = | 110 SkRect bounds = |
114 SkRect::MakeLTRB(0, 0, SkIntToScalar(pipelineBuilder->getRenderTarge
t()->width()), | 111 SkRect::MakeLTRB(0, 0, SkIntToScalar(pipelineBuilder->getRenderTarge
t()->width()), |
115 SkIntToScalar(pipelineBuilder->getRenderTarget()->h
eight())); | 112 SkIntToScalar(pipelineBuilder->getRenderTarget()->h
eight())); |
116 SkMatrix vmi; | 113 SkMatrix vmi; |
117 // mapRect through persp matrix may not be correct | 114 // mapRect through persp matrix may not be correct |
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129 const SkMatrix& viewM = viewMatrix.hasPerspective() ? SkMatrix::I() : vi
ewMatrix; | 126 const SkMatrix& viewM = viewMatrix.hasPerspective() ? SkMatrix::I() : vi
ewMatrix; |
130 if (pipelineBuilder->getRenderTarget()->hasMixedSamples()) { | 127 if (pipelineBuilder->getRenderTarget()->hasMixedSamples()) { |
131 pipelineBuilder->disableState(GrPipelineBuilder::kHWAntialias_Flag); | 128 pipelineBuilder->disableState(GrPipelineBuilder::kHWAntialias_Flag); |
132 } | 129 } |
133 | 130 |
134 SkAutoTUnref<GrDrawBatch> batch( | 131 SkAutoTUnref<GrDrawBatch> batch( |
135 GrRectBatchFactory::CreateNonAAFill(args.fColor, viewM, bounds,
nullptr, | 132 GrRectBatchFactory::CreateNonAAFill(args.fColor, viewM, bounds,
nullptr, |
136 &invert)); | 133 &invert)); |
137 args.fTarget->drawBatch(*pipelineBuilder, batch); | 134 args.fTarget->drawBatch(*pipelineBuilder, batch); |
138 } else { | 135 } else { |
139 static constexpr GrUserStencilSettings kCoverPass( | 136 static constexpr GrStencilSettings kStencilPass( |
140 GrUserStencilSettings::StaticInit< | 137 kZero_StencilOp, |
141 0x0000, | 138 kKeep_StencilOp, |
142 GrUserStencilTest::kNotEqual, | 139 kNotEqual_StencilFunc, |
143 0xffff, | 140 0xffff, |
144 GrUserStencilOp::kZero, | 141 0x0000, |
145 GrUserStencilOp::kKeep, | 142 0xffff); |
146 0xffff>() | |
147 ); | |
148 | 143 |
149 pipelineBuilder->setUserStencil(&kCoverPass); | 144 pipelineBuilder->setStencil(kStencilPass); |
150 SkAutoTUnref<GrDrawPathBatchBase> batch( | 145 SkAutoTUnref<GrDrawPathBatchBase> batch( |
151 GrDrawPathBatch::Create(viewMatrix, args.fColor, p->getFillType(
), p)); | 146 GrDrawPathBatch::Create(viewMatrix, args.fColor, p->getFillType(
), p)); |
152 args.fTarget->drawPathBatch(*pipelineBuilder, batch); | 147 args.fTarget->drawPathBatch(*pipelineBuilder, batch); |
153 } | 148 } |
154 | 149 |
155 pipelineBuilder->disableUserStencil(); | 150 pipelineBuilder->stencil()->setDisabled(); |
156 return true; | 151 return true; |
157 } | 152 } |
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