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Side by Side Diff: src/gpu/GrAADistanceFieldPathRenderer.cpp

Issue 1291803006: Simplify parameters passed to path renderers (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Add more validate methods Created 5 years, 4 months ago
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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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