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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" |
11 #include "GrContext.h" | 11 #include "GrContext.h" |
12 #include "GrDrawPathBatch.h" | 12 #include "GrDrawPathBatch.h" |
13 #include "GrGpu.h" | 13 #include "GrGpu.h" |
14 #include "GrPath.h" | 14 #include "GrPath.h" |
15 #include "GrRenderTarget.h" | 15 #include "GrRenderTarget.h" |
16 #include "GrResourceProvider.h" | 16 #include "GrResourceProvider.h" |
17 #include "GrStyle.h" | 17 #include "GrStrokeInfo.h" |
18 #include "batches/GrRectBatchFactory.h" | 18 #include "batches/GrRectBatchFactory.h" |
19 | 19 |
20 GrPathRenderer* GrStencilAndCoverPathRenderer::Create(GrResourceProvider* resour
ceProvider, | 20 GrPathRenderer* GrStencilAndCoverPathRenderer::Create(GrResourceProvider* resour
ceProvider, |
21 const GrCaps& caps) { | 21 const GrCaps& caps) { |
22 if (caps.shaderCaps()->pathRenderingSupport()) { | 22 if (caps.shaderCaps()->pathRenderingSupport()) { |
23 return new GrStencilAndCoverPathRenderer(resourceProvider); | 23 return new GrStencilAndCoverPathRenderer(resourceProvider); |
24 } else { | 24 } else { |
25 return nullptr; | 25 return nullptr; |
26 } | 26 } |
27 } | 27 } |
28 | 28 |
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 if (args.fStroke->isHairlineStyle()) { |
35 // the style type to hairline. | |
36 if (!args.fStyle->hasNonDashPathEffect() || args.fStyle->strokeRec().isHairl
ineStyle()) { | |
37 return false; | 35 return false; |
38 } | 36 } |
39 if (!args.fIsStencilDisabled) { | 37 if (!args.fIsStencilDisabled) { |
40 return false; | 38 return false; |
41 } | 39 } |
42 if (args.fAntiAlias) { | 40 if (args.fAntiAlias) { |
43 return args.fIsStencilBufferMSAA; | 41 return args.fIsStencilBufferMSAA; |
44 } else { | 42 } else { |
45 return true; // doesn't do per-path AA, relies on the target having MSAA | 43 return true; // doesn't do per-path AA, relies on the target having MSAA |
46 } | 44 } |
47 } | 45 } |
48 | 46 |
49 static GrPath* get_gr_path(GrResourceProvider* resourceProvider, const SkPath& s
kPath, | 47 static GrPath* get_gr_path(GrResourceProvider* resourceProvider, const SkPath& s
kPath, |
50 const GrStyle& style) { | 48 const GrStrokeInfo& stroke) { |
51 GrUniqueKey key; | 49 GrUniqueKey key; |
52 bool isVolatile; | 50 bool isVolatile; |
53 GrPath::ComputeKey(skPath, style, &key, &isVolatile); | 51 GrPath::ComputeKey(skPath, stroke, &key, &isVolatile); |
54 SkAutoTUnref<GrPath> path( | 52 SkAutoTUnref<GrPath> path( |
55 static_cast<GrPath*>(resourceProvider->findAndRefResourceByUniqueKey(key
))); | 53 static_cast<GrPath*>(resourceProvider->findAndRefResourceByUniqueKey(key
))); |
56 if (!path) { | 54 if (!path) { |
57 path.reset(resourceProvider->createPath(skPath, style)); | 55 path.reset(resourceProvider->createPath(skPath, stroke)); |
58 if (!isVolatile) { | 56 if (!isVolatile) { |
59 resourceProvider->assignUniqueKeyToResource(key, path); | 57 resourceProvider->assignUniqueKeyToResource(key, path); |
60 } | 58 } |
61 } else { | 59 } else { |
62 SkASSERT(path->isEqualTo(skPath, style)); | 60 SkASSERT(path->isEqualTo(skPath, stroke)); |
63 } | 61 } |
64 return path.release(); | 62 return path.release(); |
65 } | 63 } |
66 | 64 |
67 void GrStencilAndCoverPathRenderer::onStencilPath(const StencilPathArgs& args) { | 65 void GrStencilAndCoverPathRenderer::onStencilPath(const StencilPathArgs& args) { |
68 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), | 66 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), |
69 "GrStencilAndCoverPathRenderer::onStencilPath"); | 67 "GrStencilAndCoverPathRenderer::onStencilPath"); |
70 SkASSERT(!args.fPath->isInverseFillType()); | 68 SkASSERT(!args.fPath->isInverseFillType()); |
71 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, *args.fPath, GrStyle::
SimpleFill())); | 69 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, *args.fPath, GrStrokeI
nfo::FillInfo())); |
72 args.fTarget->stencilPath(*args.fPipelineBuilder, *args.fViewMatrix, p, p->g
etFillType()); | 70 args.fTarget->stencilPath(*args.fPipelineBuilder, *args.fViewMatrix, p, p->g
etFillType()); |
73 } | 71 } |
74 | 72 |
75 bool GrStencilAndCoverPathRenderer::onDrawPath(const DrawPathArgs& args) { | 73 bool GrStencilAndCoverPathRenderer::onDrawPath(const DrawPathArgs& args) { |
76 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), | 74 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), |
77 "GrStencilAndCoverPathRenderer::onDrawPath"); | 75 "GrStencilAndCoverPathRenderer::onDrawPath"); |
78 SkASSERT(!args.fStyle->strokeRec().isHairlineStyle()); | 76 SkASSERT(!args.fStroke->isHairlineStyle()); |
79 const SkPath& path = *args.fPath; | 77 const SkPath& path = *args.fPath; |
80 GrPipelineBuilder* pipelineBuilder = args.fPipelineBuilder; | 78 GrPipelineBuilder* pipelineBuilder = args.fPipelineBuilder; |
81 const SkMatrix& viewMatrix = *args.fViewMatrix; | 79 const SkMatrix& viewMatrix = *args.fViewMatrix; |
82 | 80 |
83 SkASSERT(pipelineBuilder->getStencil().isDisabled()); | 81 SkASSERT(pipelineBuilder->getStencil().isDisabled()); |
84 | 82 |
85 if (args.fAntiAlias) { | 83 if (args.fAntiAlias) { |
86 SkASSERT(pipelineBuilder->getRenderTarget()->isStencilBufferMultisampled
()); | 84 SkASSERT(pipelineBuilder->getRenderTarget()->isStencilBufferMultisampled
()); |
87 pipelineBuilder->enableState(GrPipelineBuilder::kHWAntialias_Flag); | 85 pipelineBuilder->enableState(GrPipelineBuilder::kHWAntialias_Flag); |
88 } | 86 } |
89 | 87 |
90 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, path, *args.fStyle)); | 88 SkAutoTUnref<GrPath> p(get_gr_path(fResourceProvider, path, *args.fStroke)); |
91 | 89 |
92 if (path.isInverseFillType()) { | 90 if (path.isInverseFillType()) { |
93 static constexpr GrStencilSettings kInvertedStencilPass( | 91 static constexpr GrStencilSettings kInvertedStencilPass( |
94 kKeep_StencilOp, | 92 kKeep_StencilOp, |
95 kZero_StencilOp, | 93 kZero_StencilOp, |
96 // We know our rect will hit pixels outside the clip and the user bi
ts will be 0 | 94 // 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 are 0
. We also need to | 95 // outside the clip. So we can't just fill where the user bits are 0
. We also need to |
98 // check that the clip bit is set. | 96 // check that the clip bit is set. |
99 kEqualIfInClip_StencilFunc, | 97 kEqualIfInClip_StencilFunc, |
100 0xffff, | 98 0xffff, |
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143 | 141 |
144 pipelineBuilder->setStencil(kStencilPass); | 142 pipelineBuilder->setStencil(kStencilPass); |
145 SkAutoTUnref<GrDrawPathBatchBase> batch( | 143 SkAutoTUnref<GrDrawPathBatchBase> batch( |
146 GrDrawPathBatch::Create(viewMatrix, args.fColor, p->getFillType(
), p)); | 144 GrDrawPathBatch::Create(viewMatrix, args.fColor, p->getFillType(
), p)); |
147 args.fTarget->drawPathBatch(*pipelineBuilder, batch); | 145 args.fTarget->drawPathBatch(*pipelineBuilder, batch); |
148 } | 146 } |
149 | 147 |
150 pipelineBuilder->stencil()->setDisabled(); | 148 pipelineBuilder->stencil()->setDisabled(); |
151 return true; | 149 return true; |
152 } | 150 } |
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