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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2014 Google Inc. | 3 * Copyright 2014 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 "GrAADistanceFieldPathRenderer.h" | 9 #include "GrAADistanceFieldPathRenderer.h" |
10 | 10 |
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78 #ifdef DF_PATH_TRACKING | 78 #ifdef DF_PATH_TRACKING |
79 SkDebugf("Cached paths: %d, freed paths: %d\n", g_NumCachedPaths, g_NumFreed
Paths); | 79 SkDebugf("Cached paths: %d, freed paths: %d\n", g_NumCachedPaths, g_NumFreed
Paths); |
80 #endif | 80 #endif |
81 } | 81 } |
82 | 82 |
83 //////////////////////////////////////////////////////////////////////////////// | 83 //////////////////////////////////////////////////////////////////////////////// |
84 bool GrAADistanceFieldPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) c
onst { | 84 bool GrAADistanceFieldPathRenderer::onCanDrawPath(const CanDrawPathArgs& args) c
onst { |
85 | 85 |
86 // TODO: Support inverse fill | 86 // TODO: Support inverse fill |
87 // TODO: Support strokes | 87 // TODO: Support strokes |
88 if (!args.fTarget->caps()->shaderCaps()->shaderDerivativeSupport() || !args.
fAntiAlias || | 88 if (!args.fShaderCaps->shaderDerivativeSupport() || !args.fAntiAlias || |
89 args.fPath->isInverseFillType() || args.fPath->isVolatile() || | 89 args.fPath->isInverseFillType() || args.fPath->isVolatile() || |
90 !args.fStroke->isFillStyle()) { | 90 !args.fStroke->isFillStyle()) { |
91 return false; | 91 return false; |
92 } | 92 } |
93 | 93 |
94 // currently don't support perspective | 94 // currently don't support perspective |
95 if (args.fViewMatrix->hasPerspective()) { | 95 if (args.fViewMatrix->hasPerspective()) { |
96 return false; | 96 return false; |
97 } | 97 } |
98 | 98 |
99 // only support paths smaller than 64x64, scaled to less than 256x256 | 99 // only support paths smaller than 64x64, scaled to less than 256x256 |
100 // the goal is to accelerate rendering of lots of small paths that may be sc
aling | 100 // the goal is to accelerate rendering of lots of small paths that may be sc
aling |
101 SkScalar maxScale = args.fViewMatrix->getMaxScale(); | 101 SkScalar maxScale = args.fViewMatrix->getMaxScale(); |
102 const SkRect& bounds = args.fPath->getBounds(); | 102 const SkRect& bounds = args.fPath->getBounds(); |
103 SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); | 103 SkScalar maxDim = SkMaxScalar(bounds.width(), bounds.height()); |
104 return maxDim < 64.f && maxDim * maxScale < 256.f; | 104 return maxDim < 64.f && maxDim * maxScale < 256.f; |
105 } | 105 } |
106 | 106 |
107 GrPathRenderer::StencilSupport | |
108 GrAADistanceFieldPathRenderer::onGetStencilSupport(const GrDrawTarget*, | |
109 const GrPipelineBuilder*, | |
110 const SkPath&, | |
111 const GrStrokeInfo&) const { | |
112 return GrPathRenderer::kNoSupport_StencilSupport; | |
113 } | |
114 | |
115 //////////////////////////////////////////////////////////////////////////////// | 107 //////////////////////////////////////////////////////////////////////////////// |
116 | 108 |
117 // padding around path bounds to allow for antialiased pixels | 109 // padding around path bounds to allow for antialiased pixels |
118 static const SkScalar kAntiAliasPad = 1.0f; | 110 static const SkScalar kAntiAliasPad = 1.0f; |
119 | 111 |
120 class AADistanceFieldPathBatch : public GrBatch { | 112 class AADistanceFieldPathBatch : public GrBatch { |
121 public: | 113 public: |
122 typedef GrAADistanceFieldPathRenderer::PathData PathData; | 114 typedef GrAADistanceFieldPathRenderer::PathData PathData; |
123 typedef SkTDynamicHash<PathData, PathData::Key> PathCache; | 115 typedef SkTDynamicHash<PathData, PathData::Key> PathCache; |
124 typedef GrAADistanceFieldPathRenderer::PathDataList PathDataList; | 116 typedef GrAADistanceFieldPathRenderer::PathDataList PathDataList; |
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625 geometry.fPath = GrTest::TestPath(random); | 617 geometry.fPath = GrTest::TestPath(random); |
626 geometry.fAntiAlias = random->nextBool(); | 618 geometry.fAntiAlias = random->nextBool(); |
627 | 619 |
628 return AADistanceFieldPathBatch::Create(geometry, color, viewMatrix, | 620 return AADistanceFieldPathBatch::Create(geometry, color, viewMatrix, |
629 gTestStruct.fAtlas, | 621 gTestStruct.fAtlas, |
630 &gTestStruct.fPathCache, | 622 &gTestStruct.fPathCache, |
631 &gTestStruct.fPathList); | 623 &gTestStruct.fPathList); |
632 } | 624 } |
633 | 625 |
634 #endif | 626 #endif |
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