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| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 #include "GrAALinearizingConvexPathRenderer.h" | 8 #include "GrAALinearizingConvexPathRenderer.h" |
| 9 | 9 |
| 10 #include "GrAAConvexTessellator.h" | 10 #include "GrAAConvexTessellator.h" |
| 11 #include "GrBatchFlushState.h" | 11 #include "GrBatchFlushState.h" |
| 12 #include "GrBatchTest.h" | 12 #include "GrBatchTest.h" |
| 13 #include "GrContext.h" | 13 #include "GrContext.h" |
| 14 #include "GrDefaultGeoProcFactory.h" | 14 #include "GrDefaultGeoProcFactory.h" |
| 15 #include "GrGeometryProcessor.h" | 15 #include "GrGeometryProcessor.h" |
| 16 #include "GrInvariantOutput.h" | 16 #include "GrInvariantOutput.h" |
| 17 #include "GrPathUtils.h" | 17 #include "GrPathUtils.h" |
| 18 #include "GrProcessor.h" | 18 #include "GrProcessor.h" |
| 19 #include "GrPipelineBuilder.h" | 19 #include "GrPipelineBuilder.h" |
| 20 #include "GrStyle.h" | 20 #include "GrStrokeInfo.h" |
| 21 #include "SkGeometry.h" | 21 #include "SkGeometry.h" |
| 22 #include "SkString.h" | 22 #include "SkString.h" |
| 23 #include "SkTraceEvent.h" | 23 #include "SkTraceEvent.h" |
| 24 #include "SkPathPriv.h" | 24 #include "SkPathPriv.h" |
| 25 #include "batches/GrVertexBatch.h" | 25 #include "batches/GrVertexBatch.h" |
| 26 #include "glsl/GrGLSLGeometryProcessor.h" | 26 #include "glsl/GrGLSLGeometryProcessor.h" |
| 27 | 27 |
| 28 static const int DEFAULT_BUFFER_SIZE = 100; | 28 static const int DEFAULT_BUFFER_SIZE = 100; |
| 29 | 29 |
| 30 // The thicker the stroke, the harder it is to produce high-quality results usin
g tessellation. For | 30 // The thicker the stroke, the harder it is to produce high-quality results usin
g tessellation. For |
| 31 // the time being, we simply drop back to software rendering above this stroke w
idth. | 31 // the time being, we simply drop back to software rendering above this stroke w
idth. |
| 32 static const SkScalar kMaxStrokeWidth = 20.0; | 32 static const SkScalar kMaxStrokeWidth = 20.0; |
| 33 | 33 |
| 34 GrAALinearizingConvexPathRenderer::GrAALinearizingConvexPathRenderer() { | 34 GrAALinearizingConvexPathRenderer::GrAALinearizingConvexPathRenderer() { |
| 35 } | 35 } |
| 36 | 36 |
| 37 /////////////////////////////////////////////////////////////////////////////// | 37 /////////////////////////////////////////////////////////////////////////////// |
| 38 | 38 |
| 39 bool GrAALinearizingConvexPathRenderer::onCanDrawPath(const CanDrawPathArgs& arg
s) const { | 39 bool GrAALinearizingConvexPathRenderer::onCanDrawPath(const CanDrawPathArgs& arg
s) const { |
| 40 if (!args.fAntiAlias) { | 40 if (!args.fAntiAlias) { |
| 41 return false; | 41 return false; |
| 42 } | 42 } |
| 43 if (args.fPath->isInverseFillType()) { | 43 if (args.fPath->isInverseFillType()) { |
| 44 return false; | 44 return false; |
| 45 } | 45 } |
| 46 if (!args.fPath->isConvex()) { | 46 if (!args.fPath->isConvex()) { |
| 47 return false; | 47 return false; |
| 48 } | 48 } |
| 49 if (args.fStyle->pathEffect()) { | 49 if (args.fStroke->getStyle() == SkStrokeRec::kStroke_Style) { |
| 50 return false; | |
| 51 } | |
| 52 const SkStrokeRec& stroke = args.fStyle->strokeRec(); | |
| 53 if (stroke.getStyle() == SkStrokeRec::kStroke_Style) { | |
| 54 if (!args.fViewMatrix->isSimilarity()) { | 50 if (!args.fViewMatrix->isSimilarity()) { |
| 55 return false; | 51 return false; |
| 56 } | 52 } |
| 57 SkScalar strokeWidth = args.fViewMatrix->getMaxScale() * stroke.getWidth
(); | 53 SkScalar strokeWidth = args.fViewMatrix->getMaxScale() * args.fStroke->g
etWidth(); |
| 58 return strokeWidth >= 1.0f && strokeWidth <= kMaxStrokeWidth && | 54 return strokeWidth >= 1.0f && strokeWidth <= kMaxStrokeWidth && !args.fS
troke->isDashed() && |
| 59 SkPathPriv::IsClosedSingleContour(*args.fPath) && | 55 SkPathPriv::IsClosedSingleContour(*args.fPath) && |
| 60 stroke.getJoin() != SkPaint::Join::kRound_Join; | 56 args.fStroke->getJoin() != SkPaint::Join::kRound_Join; |
| 61 } | 57 } |
| 62 return stroke.getStyle() == SkStrokeRec::kFill_Style; | 58 return args.fStroke->getStyle() == SkStrokeRec::kFill_Style; |
| 63 } | 59 } |
| 64 | 60 |
| 65 // extract the result vertices and indices from the GrAAConvexTessellator | 61 // extract the result vertices and indices from the GrAAConvexTessellator |
| 66 static void extract_verts(const GrAAConvexTessellator& tess, | 62 static void extract_verts(const GrAAConvexTessellator& tess, |
| 67 void* vertices, | 63 void* vertices, |
| 68 size_t vertexStride, | 64 size_t vertexStride, |
| 69 GrColor color, | 65 GrColor color, |
| 70 uint16_t firstIndex, | 66 uint16_t firstIndex, |
| 71 uint16_t* idxs, | 67 uint16_t* idxs, |
| 72 bool tweakAlphaForCoverage) { | 68 bool tweakAlphaForCoverage) { |
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| 322 bool GrAALinearizingConvexPathRenderer::onDrawPath(const DrawPathArgs& args) { | 318 bool GrAALinearizingConvexPathRenderer::onDrawPath(const DrawPathArgs& args) { |
| 323 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), | 319 GR_AUDIT_TRAIL_AUTO_FRAME(args.fTarget->getAuditTrail(), |
| 324 "GrAALinearizingConvexPathRenderer::onDrawPath"); | 320 "GrAALinearizingConvexPathRenderer::onDrawPath"); |
| 325 if (args.fPath->isEmpty()) { | 321 if (args.fPath->isEmpty()) { |
| 326 return true; | 322 return true; |
| 327 } | 323 } |
| 328 AAFlatteningConvexPathBatch::Geometry geometry; | 324 AAFlatteningConvexPathBatch::Geometry geometry; |
| 329 geometry.fColor = args.fColor; | 325 geometry.fColor = args.fColor; |
| 330 geometry.fViewMatrix = *args.fViewMatrix; | 326 geometry.fViewMatrix = *args.fViewMatrix; |
| 331 geometry.fPath = *args.fPath; | 327 geometry.fPath = *args.fPath; |
| 332 bool fill = args.fStyle->isSimpleFill(); | 328 geometry.fStrokeWidth = args.fStroke->isFillStyle() ? -1.0f : args.fStroke->
getWidth(); |
| 333 geometry.fStrokeWidth = fill ? -1.0f : args.fStyle->strokeRec().getWidth(); | 329 geometry.fJoin = args.fStroke->isFillStyle() ? SkPaint::Join::kMiter_Join : |
| 334 geometry.fJoin = fill ? SkPaint::Join::kMiter_Join : args.fStyle->strokeRec(
).getJoin(); | 330 args.fStroke->getJoin(); |
| 335 geometry.fMiterLimit = args.fStyle->strokeRec().getMiter(); | 331 geometry.fMiterLimit = args.fStroke->getMiter(); |
| 336 | 332 |
| 337 SkAutoTUnref<GrDrawBatch> batch(AAFlatteningConvexPathBatch::Create(geometry
)); | 333 SkAutoTUnref<GrDrawBatch> batch(AAFlatteningConvexPathBatch::Create(geometry
)); |
| 338 args.fTarget->drawBatch(*args.fPipelineBuilder, batch); | 334 args.fTarget->drawBatch(*args.fPipelineBuilder, batch); |
| 339 | 335 |
| 340 return true; | 336 return true; |
| 341 } | 337 } |
| 342 | 338 |
| 343 ////////////////////////////////////////////////////////////////////////////////
/////////////////// | 339 ////////////////////////////////////////////////////////////////////////////////
/////////////////// |
| 344 | 340 |
| 345 #ifdef GR_TEST_UTILS | 341 #ifdef GR_TEST_UTILS |
| 346 | 342 |
| 347 DRAW_BATCH_TEST_DEFINE(AAFlatteningConvexPathBatch) { | 343 DRAW_BATCH_TEST_DEFINE(AAFlatteningConvexPathBatch) { |
| 348 AAFlatteningConvexPathBatch::Geometry geometry; | 344 AAFlatteningConvexPathBatch::Geometry geometry; |
| 349 geometry.fColor = GrRandomColor(random); | 345 geometry.fColor = GrRandomColor(random); |
| 350 geometry.fViewMatrix = GrTest::TestMatrixInvertible(random); | 346 geometry.fViewMatrix = GrTest::TestMatrixInvertible(random); |
| 351 geometry.fPath = GrTest::TestPathConvex(random); | 347 geometry.fPath = GrTest::TestPathConvex(random); |
| 352 | 348 |
| 353 return AAFlatteningConvexPathBatch::Create(geometry); | 349 return AAFlatteningConvexPathBatch::Create(geometry); |
| 354 } | 350 } |
| 355 | 351 |
| 356 #endif | 352 #endif |
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