// Copyright 2020 Google LLC. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. #include "tools/fiddle/examples.h" REG_FIDDLE(blur_alpha_img, 256, 256, false, 0) { sk_sp foo() { int w = 240, h = 240; SkScalar scale = 10.0f; SkPath path; static const int8_t pts[] = {2, 2, 1, 3, 0, 3, 2, 1, 3, 1, 4, 0, 4, 1, 5, 1, 4, 2, 4, 3, 2, 5, 2, 4, 3, 3, 2, 3}; path.moveTo(2 * scale, 3 * scale); for (size_t i = 0; i < sizeof(pts) / sizeof(pts[0]); i += 2) { path.lineTo(pts[i] * scale, pts[i + 1] * scale); } path.close(); SkMatrix matrix = SkMatrix::MakeScale(4 * scale); SkPaint paint; paint.setPathEffect(SkPath2DPathEffect::Make(matrix, path)); paint.setAntiAlias(true); SkRect bounds{-4 * scale, -4 * scale, (float)w, (float)h}; SkBitmap bm; bm.allocPixels(SkImageInfo::MakeA8(w, h)); SkCanvas c(bm); c.clear(0); c.drawRect(bounds, paint); return SkImage::MakeFromBitmap(bm); } void draw(SkCanvas* canvas) { auto a8img = foo(); SkPaint paint; paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 2.0f, 0)); paint.setColor(0xFF008000); canvas->drawImage(a8img, 8, 8, &paint); } } // END FIDDLE