| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrDashLinePathRenderer.h" |
| |
| #include "GrGpu.h" |
| #include "GrAuditTrail.h" |
| #include "effects/GrDashingEffect.h" |
| |
| bool GrDashLinePathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const { |
| SkPoint pts[2]; |
| bool inverted; |
| if (args.fShape->style().isDashed() && args.fShape->asLine(pts, &inverted)) { |
| // We should never have an inverse dashed case. |
| SkASSERT(!inverted); |
| return GrDashingEffect::CanDrawDashLine(pts, args.fShape->style(), *args.fViewMatrix); |
| } |
| return false; |
| } |
| |
| bool GrDashLinePathRenderer::onDrawPath(const DrawPathArgs& args) { |
| GR_AUDIT_TRAIL_AUTO_FRAME(args.fDrawContext->auditTrail(), |
| "GrDashLinePathRenderer::onDrawPath"); |
| bool useHWAA = args.fDrawContext->isUnifiedMultisampled(); |
| GrDashingEffect::AAMode aaMode; |
| if (useHWAA) { |
| // We ignore args.fAntiAlias here and force anti aliasing when using MSAA. Otherwise, |
| // we can wind up with external edges antialiased and internal edges unantialiased. |
| aaMode = GrDashingEffect::AAMode::kCoverageWithMSAA; |
| } else if (args.fAntiAlias) { |
| aaMode = GrDashingEffect::AAMode::kCoverage; |
| } else { |
| aaMode = GrDashingEffect::AAMode::kNone; |
| } |
| SkPoint pts[2]; |
| SkAssertResult(args.fShape->asLine(pts, nullptr)); |
| SkAutoTUnref<GrDrawBatch> batch(GrDashingEffect::CreateDashLineBatch(args.fPaint->getColor(), |
| *args.fViewMatrix, |
| pts, |
| aaMode, |
| args.fShape->style())); |
| if (!batch) { |
| return false; |
| } |
| |
| GrPipelineBuilder pipelineBuilder(*args.fPaint, useHWAA); |
| pipelineBuilder.setUserStencil(args.fUserStencilSettings); |
| |
| args.fDrawContext->drawBatch(pipelineBuilder, *args.fClip, batch); |
| return true; |
| } |