/* * Copyright 2018 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gm/gm.h" #include "include/core/SkBitmap.h" #include "include/core/SkPaint.h" #include "include/core/SkPath.h" #include "include/effects/SkDashPathEffect.h" // Repro case for skia:7674. Requires lots of RAM to run, and currently triggers UB: // ../include/private/SkTDArray.h:382:26: // runtime error: signed integer overflow: 2147483644 + 4 cannot be represented in type 'int' #if 0 DEF_SIMPLE_GM(PathMeasure_explosion, canvas, 500,500) { SkPaint p; p.setAntiAlias(false); float intervals[] = { 0, 10e9f }; p.setStyle(SkPaint::kStroke_Style); p.setPathEffect(SkDashPathEffect::Make(intervals, SK_ARRAY_COUNT(intervals), 0)); int quadratic_at[] = { 13, 68, 258, 1053, 1323, 2608, 10018, 15668, 59838, 557493, 696873, 871098, 4153813, 15845608, 48357008, 118059138, 288230353, 360287948, 562949933, 703687423, 1099511613, 0 }; int next_quadratic_at = 0; SkPath path; path.moveTo(0, 0); int i = 1; for (int points = 1; points < 2147483647; ) { if (points == quadratic_at[next_quadratic_at]) { path.quadTo(i, 0, i, 0); next_quadratic_at++; points += 2; } else { path.lineTo(i, 0); points += 1; } i++; if (i == 1000000) { path.moveTo(0, 0); points += 1; i = 1; } } canvas->drawPath(path, p); } #endif