1 /* 2 * Copyright 2018 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 "gm.h" 9 #include "SkCanvas.h" 10 #include "SkPaint.h" 11 #include "SkPath.h" 12 13 DEF_SIMPLE_GM(crbug_847759, canvas, 500, 500) { 14 // This path exposed an issue in GrAAHairlinePathRenderer. When converting from cubics to quads 15 // we produced quads where the previously vertical tangents at the left and right tips of the 16 // squashed oval-like path became slightly non-vertical. This caused a missed pixel of AA just 17 // outside each tip. 18 SkPath path; 19 path.moveTo(97,374.5f); 20 path.cubicTo(97,359.8644528f,155.8745488f,348,228.5f,348); 21 path.cubicTo(301.1254512f,348,360,359.8644528f,360,374.5f); 22 path.cubicTo(360,389.1355472f,301.1254512f,401,228.5f,401); 23 path.cubicTo(155.8745488f,401,97,389.1355472f,97,374.5f); 24 path.close(); 25 SkPaint paint; 26 paint.setAntiAlias(true); 27 paint.setStrokeWidth(0); 28 paint.setStrokeMiter(1.5); 29 paint.setStyle(SkPaint::kStroke_Style); 30 canvas->translate(-80, -330); 31 canvas->drawPath(path, paint); 32 } 33
