1 /* 2 * Copyright 2020 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/gm.h" 9 #include "include/core/SkCanvas.h" 10 #include "include/core/SkPaint.h" 11 #include "include/core/SkPathBuilder.h" 12 13 // See crbug.com/1086705. The convex linearizing path renderer would collapse too many of the 14 // very-near duplicate vertices and turn the path into a triangle. Since the stroke width is larger 15 // than the radius of the circle, there's the separate issue of what to do when stroke 16 // self-intersects 17 DEF_SIMPLE_GM(crbug_1086705, canvas, 200, 200) { 18 SkPaint paint; 19 paint.setStyle(SkPaint::kStroke_Style); 20 paint.setStrokeWidth(5.f); 21 paint.setAntiAlias(true); 22 23 SkPoint circleVertices[700]; 24 for (int i = 0; i < 700; ++i) { 25 SkScalar angleRads = 2 * SK_ScalarPI * i / 700.f; 26 circleVertices[i] = {100.f + 2.f * SkScalarCos(angleRads), 27 100.f + 2.f * SkScalarSin(angleRads)}; 28 } 29 30 SkPathBuilder circle; 31 circle.moveTo(circleVertices[0]); 32 for (int i = 1; i < 700; ++i) { 33 circle.lineTo(circleVertices[i]); 34 } 35 circle.close(); 36 37 canvas->drawPath(circle.detach(), paint); 38 } 39