1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "GrDashLinePathRenderer.h" 9 10 #include "GrAuditTrail.h" 11 #include "GrGpu.h" 12 #include "ops/GrDashOp.h" 13 #include "ops/GrMeshDrawOp.h" 14 15 bool GrDashLinePathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const { 16 SkPoint pts[2]; 17 bool inverted; 18 if (args.fShape->style().isDashed() && args.fShape->asLine(pts, &inverted)) { 19 if (args.fAAType == GrAAType::kMixedSamples) { 20 return false; 21 } 22 // We should never have an inverse dashed case. 23 SkASSERT(!inverted); 24 return GrDashOp::CanDrawDashLine(pts, args.fShape->style(), *args.fViewMatrix); 25 } 26 return false; 27 } 28 29 bool GrDashLinePathRenderer::onDrawPath(const DrawPathArgs& args) { 30 GR_AUDIT_TRAIL_AUTO_FRAME(args.fRenderTargetContext->auditTrail(), 31 "GrDashLinePathRenderer::onDrawPath"); 32 GrDashOp::AAMode aaMode = GrDashOp::AAMode::kNone; 33 switch (args.fAAType) { 34 case GrAAType::kNone: 35 break; 36 case GrAAType::kCoverage: 37 case GrAAType::kMixedSamples: 38 aaMode = GrDashOp::AAMode::kCoverage; 39 break; 40 case GrAAType::kMSAA: 41 // In this mode we will use aa between dashes but the outer border uses MSAA. Otherwise, 42 // we can wind up with external edges antialiased and internal edges unantialiased. 43 aaMode = GrDashOp::AAMode::kCoverageWithMSAA; 44 break; 45 } 46 SkPoint pts[2]; 47 SkAssertResult(args.fShape->asLine(pts, nullptr)); 48 std::unique_ptr<GrDrawOp> op = 49 GrDashOp::MakeDashLineOp(std::move(args.fPaint), *args.fViewMatrix, pts, aaMode, 50 args.fShape->style(), args.fUserStencilSettings); 51 if (!op) { 52 return false; 53 } 54 args.fRenderTargetContext->addDrawOp(*args.fClip, std::move(op)); 55 return true; 56 } 57
