// Copyright 2019 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" // HASH=102d014d7f753db2a9b9ee08893aaf11 REG_FIDDLE(Canvas_readPixels_a, 64, 64, false, 0) { void draw(SkCanvas* canvas) { canvas->clear(SK_ColorBLUE); SkPaint paint; canvas->drawCircle(32, 32, 28, paint); SkImageInfo info = SkImageInfo::Make(64, 64, kBGRA_8888_SkColorType, kPremul_SkAlphaType); sk_sp data(SkData::MakeUninitialized(info.minRowBytes() * info.height())); sk_bzero(data->writable_data(), info.minRowBytes() * info.height()); for (int x : { 32, -32 } ) { for (int y : { 32, -32 } ) { canvas->readPixels(info, data->writable_data(), info.minRowBytes(), x, y); } } sk_sp image = SkImage::MakeRasterData(info, data, info.minRowBytes()); canvas->drawImage(image, 0, 0); } } // END FIDDLE