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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 | 9 |
10 #include "GrStencilAndCoverPathRenderer.h" | 10 #include "GrStencilAndCoverPathRenderer.h" |
(...skipping 33 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
44 SkASSERT(gpu->caps()->pathRenderingSupport()); | 44 SkASSERT(gpu->caps()->pathRenderingSupport()); |
45 fGpu = gpu; | 45 fGpu = gpu; |
46 gpu->ref(); | 46 gpu->ref(); |
47 } | 47 } |
48 | 48 |
49 GrStencilAndCoverPathRenderer::~GrStencilAndCoverPathRenderer() { | 49 GrStencilAndCoverPathRenderer::~GrStencilAndCoverPathRenderer() { |
50 fGpu->unref(); | 50 fGpu->unref(); |
51 } | 51 } |
52 | 52 |
53 bool GrStencilAndCoverPathRenderer::canDrawPath(const GrDrawTarget* target, | 53 bool GrStencilAndCoverPathRenderer::canDrawPath(const GrDrawTarget* target, |
54 const GrDrawState* drawState, | 54 const GrPipelineBuilder* pipelin
eBuilder, |
55 const SkMatrix& viewMatrix, | 55 const SkMatrix& viewMatrix, |
56 const SkPath& path, | 56 const SkPath& path, |
57 const SkStrokeRec& stroke, | 57 const SkStrokeRec& stroke, |
58 bool antiAlias) const { | 58 bool antiAlias) const { |
59 return !stroke.isHairlineStyle() && | 59 return !stroke.isHairlineStyle() && |
60 !antiAlias && // doesn't do per-path AA, relies on the target having
MSAA | 60 !antiAlias && // doesn't do per-path AA, relies on the target having
MSAA |
61 drawState->getRenderTarget()->getStencilBuffer() && | 61 pipelineBuilder->getRenderTarget()->getStencilBuffer() && |
62 drawState->getStencil().isDisabled(); | 62 pipelineBuilder->getStencil().isDisabled(); |
63 } | 63 } |
64 | 64 |
65 GrPathRenderer::StencilSupport | 65 GrPathRenderer::StencilSupport |
66 GrStencilAndCoverPathRenderer::onGetStencilSupport(const GrDrawTarget*, | 66 GrStencilAndCoverPathRenderer::onGetStencilSupport(const GrDrawTarget*, |
67 const GrDrawState*, | 67 const GrPipelineBuilder*, |
68 const SkPath&, | 68 const SkPath&, |
69 const SkStrokeRec&) const { | 69 const SkStrokeRec&) const { |
70 return GrPathRenderer::kStencilOnly_StencilSupport; | 70 return GrPathRenderer::kStencilOnly_StencilSupport; |
71 } | 71 } |
72 | 72 |
73 static GrPath* get_gr_path(GrGpu* gpu, const SkPath& skPath, const SkStrokeRec&
stroke) { | 73 static GrPath* get_gr_path(GrGpu* gpu, const SkPath& skPath, const SkStrokeRec&
stroke) { |
74 GrContext* ctx = gpu->getContext(); | 74 GrContext* ctx = gpu->getContext(); |
75 GrResourceKey resourceKey = GrPath::ComputeKey(skPath, stroke); | 75 GrResourceKey resourceKey = GrPath::ComputeKey(skPath, stroke); |
76 SkAutoTUnref<GrPath> path(static_cast<GrPath*>(ctx->findAndRefCachedResource
(resourceKey))); | 76 SkAutoTUnref<GrPath> path(static_cast<GrPath*>(ctx->findAndRefCachedResource
(resourceKey))); |
77 if (NULL == path || !path->isEqualTo(skPath, stroke)) { | 77 if (NULL == path || !path->isEqualTo(skPath, stroke)) { |
78 path.reset(gpu->pathRendering()->createPath(skPath, stroke)); | 78 path.reset(gpu->pathRendering()->createPath(skPath, stroke)); |
79 ctx->addResourceToCache(resourceKey, path); | 79 ctx->addResourceToCache(resourceKey, path); |
80 } | 80 } |
81 return path.detach(); | 81 return path.detach(); |
82 } | 82 } |
83 | 83 |
84 void GrStencilAndCoverPathRenderer::onStencilPath(GrDrawTarget* target, | 84 void GrStencilAndCoverPathRenderer::onStencilPath(GrDrawTarget* target, |
85 GrDrawState* drawState, | 85 GrPipelineBuilder* pipelineBui
lder, |
86 const SkMatrix& viewMatrix, | 86 const SkMatrix& viewMatrix, |
87 const SkPath& path, | 87 const SkPath& path, |
88 const SkStrokeRec& stroke) { | 88 const SkStrokeRec& stroke) { |
89 SkASSERT(!path.isInverseFillType()); | 89 SkASSERT(!path.isInverseFillType()); |
90 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(GrColor_WHITE, view
Matrix)); | 90 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(GrColor_WHITE, view
Matrix)); |
91 SkAutoTUnref<GrPath> p(get_gr_path(fGpu, path, stroke)); | 91 SkAutoTUnref<GrPath> p(get_gr_path(fGpu, path, stroke)); |
92 target->stencilPath(drawState, pp, p, convert_skpath_filltype(path.getFillTy
pe())); | 92 target->stencilPath(pipelineBuilder, pp, p, convert_skpath_filltype(path.get
FillType())); |
93 } | 93 } |
94 | 94 |
95 bool GrStencilAndCoverPathRenderer::onDrawPath(GrDrawTarget* target, | 95 bool GrStencilAndCoverPathRenderer::onDrawPath(GrDrawTarget* target, |
96 GrDrawState* drawState, | 96 GrPipelineBuilder* pipelineBuilde
r, |
97 GrColor color, | 97 GrColor color, |
98 const SkMatrix& viewMatrix, | 98 const SkMatrix& viewMatrix, |
99 const SkPath& path, | 99 const SkPath& path, |
100 const SkStrokeRec& stroke, | 100 const SkStrokeRec& stroke, |
101 bool antiAlias) { | 101 bool antiAlias) { |
102 SkASSERT(!antiAlias); | 102 SkASSERT(!antiAlias); |
103 SkASSERT(!stroke.isHairlineStyle()); | 103 SkASSERT(!stroke.isHairlineStyle()); |
104 | 104 |
105 SkASSERT(drawState->getStencil().isDisabled()); | 105 SkASSERT(pipelineBuilder->getStencil().isDisabled()); |
106 | 106 |
107 SkAutoTUnref<GrPath> p(get_gr_path(fGpu, path, stroke)); | 107 SkAutoTUnref<GrPath> p(get_gr_path(fGpu, path, stroke)); |
108 | 108 |
109 if (path.isInverseFillType()) { | 109 if (path.isInverseFillType()) { |
110 GR_STATIC_CONST_SAME_STENCIL(kInvertedStencilPass, | 110 GR_STATIC_CONST_SAME_STENCIL(kInvertedStencilPass, |
111 kZero_StencilOp, | 111 kZero_StencilOp, |
112 kZero_StencilOp, | 112 kZero_StencilOp, |
113 // We know our rect will hit pixels outside the clip and the user bi
ts will be 0 | 113 // We know our rect will hit pixels outside the clip and the user bi
ts will be 0 |
114 // outside the clip. So we can't just fill where the user bits are 0
. We also need to | 114 // outside the clip. So we can't just fill where the user bits are 0
. We also need to |
115 // check that the clip bit is set. | 115 // check that the clip bit is set. |
116 kEqualIfInClip_StencilFunc, | 116 kEqualIfInClip_StencilFunc, |
117 0xffff, | 117 0xffff, |
118 0x0000, | 118 0x0000, |
119 0xffff); | 119 0xffff); |
120 | 120 |
121 drawState->setStencil(kInvertedStencilPass); | 121 pipelineBuilder->setStencil(kInvertedStencilPass); |
122 | 122 |
123 // fake inverse with a stencil and cover | 123 // fake inverse with a stencil and cover |
124 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(GrColor_WHITE,
viewMatrix)); | 124 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(GrColor_WHITE,
viewMatrix)); |
125 target->stencilPath(drawState, pp, p, convert_skpath_filltype(path.getFi
llType())); | 125 target->stencilPath(pipelineBuilder, pp, p, convert_skpath_filltype(path
.getFillType())); |
126 | 126 |
127 SkMatrix invert = SkMatrix::I(); | 127 SkMatrix invert = SkMatrix::I(); |
128 SkRect bounds = SkRect::MakeLTRB(0, 0, | 128 SkRect bounds = |
129 SkIntToScalar(drawState->getRenderTarge
t()->width()), | 129 SkRect::MakeLTRB(0, 0, SkIntToScalar(pipelineBuilder->getRenderTarge
t()->width()), |
130 SkIntToScalar(drawState->getRenderTarge
t()->height())); | 130 SkIntToScalar(pipelineBuilder->getRenderTarget()->h
eight())); |
131 SkMatrix vmi; | 131 SkMatrix vmi; |
132 // mapRect through persp matrix may not be correct | 132 // mapRect through persp matrix may not be correct |
133 if (!viewMatrix.hasPerspective() && viewMatrix.invert(&vmi)) { | 133 if (!viewMatrix.hasPerspective() && viewMatrix.invert(&vmi)) { |
134 vmi.mapRect(&bounds); | 134 vmi.mapRect(&bounds); |
135 // theoretically could set bloat = 0, instead leave it because of ma
trix inversion | 135 // theoretically could set bloat = 0, instead leave it because of ma
trix inversion |
136 // precision. | 136 // precision. |
137 SkScalar bloat = viewMatrix.getMaxScale() * SK_ScalarHalf; | 137 SkScalar bloat = viewMatrix.getMaxScale() * SK_ScalarHalf; |
138 bounds.outset(bloat, bloat); | 138 bounds.outset(bloat, bloat); |
139 } else { | 139 } else { |
140 if (!viewMatrix.invert(&invert)) { | 140 if (!viewMatrix.invert(&invert)) { |
141 return false; | 141 return false; |
142 } | 142 } |
143 } | 143 } |
144 const SkMatrix& viewM = viewMatrix.hasPerspective() ? SkMatrix::I() : vi
ewMatrix; | 144 const SkMatrix& viewM = viewMatrix.hasPerspective() ? SkMatrix::I() : vi
ewMatrix; |
145 target->drawRect(drawState, color, viewM, bounds, NULL, &invert); | 145 target->drawRect(pipelineBuilder, color, viewM, bounds, NULL, &invert); |
146 } else { | 146 } else { |
147 GR_STATIC_CONST_SAME_STENCIL(kStencilPass, | 147 GR_STATIC_CONST_SAME_STENCIL(kStencilPass, |
148 kZero_StencilOp, | 148 kZero_StencilOp, |
149 kZero_StencilOp, | 149 kZero_StencilOp, |
150 kNotEqual_StencilFunc, | 150 kNotEqual_StencilFunc, |
151 0xffff, | 151 0xffff, |
152 0x0000, | 152 0x0000, |
153 0xffff); | 153 0xffff); |
154 | 154 |
155 drawState->setStencil(kStencilPass); | 155 pipelineBuilder->setStencil(kStencilPass); |
156 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(color, viewMatr
ix)); | 156 SkAutoTUnref<GrPathProcessor> pp(GrPathProcessor::Create(color, viewMatr
ix)); |
157 target->drawPath(drawState, pp, p, convert_skpath_filltype(path.getFillT
ype())); | 157 target->drawPath(pipelineBuilder, pp, p, convert_skpath_filltype(path.ge
tFillType())); |
158 } | 158 } |
159 | 159 |
160 drawState->stencil()->setDisabled(); | 160 pipelineBuilder->stencil()->setDisabled(); |
161 return true; | 161 return true; |
162 } | 162 } |
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