1 /* 2 * Copyright 2020 Google LLC 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/SkRRect.h" 12 13 DEF_SIMPLE_GM_BG(crbug_1139750, canvas, 50, 50, SK_ColorWHITE) { 14 // Draw a round-rect with a (slightly) non-square scale. This forces the GPU backend to use 15 // the elliptical round-rect op. We set the stroke width to exactly double the radii, which 16 // makes the inner radii exactly zero. The shader uses the inverse inner radii to compute the 17 // coverage ramp, so this would end up producing infinity, and the geometry would disappear. 18 SkPaint p; 19 p.setAntiAlias(true); 20 p.setStyle(SkPaint::kStroke_Style); 21 p.setStrokeWidth(2); 22 23 SkRect r = SkRect::MakeXYWH(1, 1, 19, 19); 24 SkRRect rr = SkRRect::MakeRectXY(r, 1, 1); 25 26 canvas->translate(10, 10); 27 canvas->scale(1.47619f, 1.52381f); 28 canvas->drawRRect(rr, p); 29 } 30