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/gm.h" 9 #include "include/core/SkBlendMode.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/core/SkImage.h" 12 #include "include/core/SkImageFilter.h" 13 #include "include/core/SkImageInfo.h" 14 #include "include/core/SkPaint.h" 15 #include "include/core/SkRect.h" 16 #include "include/core/SkRefCnt.h" 17 #include "include/core/SkSurface.h" 18 #include "include/effects/SkImageFilters.h" 19 20 DEF_SIMPLE_GM(crbug_905548, canvas, 100, 200) { 21 auto surface = canvas->makeSurface(SkImageInfo::MakeN32Premul(100, 100)); 22 if (!surface) { 23 surface = SkSurface::MakeRaster(SkImageInfo::MakeN32Premul(100, 100)); 24 } 25 surface->getCanvas()->clear(0); 26 surface->getCanvas()->drawCircle(50, 50, 45, SkPaint()); 27 auto imageSource = SkImageFilters::Image(surface->makeImageSnapshot()); 28 29 auto blurred = SkImageFilters::Blur(15, 15, imageSource); 30 auto eroded = SkImageFilters::Erode(0, 0, blurred); 31 auto blended = SkImageFilters::Blend(SkBlendMode::kDstOut, eroded, imageSource, nullptr); 32 33 SkPaint paint; 34 paint.setImageFilter(blended); 35 canvas->drawRect(SkRect::MakeWH(100, 100), paint); 36 37 auto mult = SkImageFilters::Arithmetic(1, 0, 0, 0, false, eroded, imageSource, nullptr); 38 paint.setImageFilter(mult); 39 canvas->translate(0, 100); 40 canvas->drawRect(SkRect::MakeWH(100, 100), paint); 41 } 42