| // 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=484d60dab5d846bf28c7a4d48892324a |
| REG_FIDDLE(Surface_readPixels_2, 256, 64, false, 0) { |
| void draw(SkCanvas* canvas) { |
| sk_sp<SkSurface> surf(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(64, 64))); |
| auto surfCanvas = surf->getCanvas(); |
| surfCanvas->clear(SK_ColorRED); |
| SkPaint paint; |
| surfCanvas->drawOval({4, 8, 58, 54}, paint); |
| SkImageInfo info = SkImageInfo::Make(64, 64, kBGRA_8888_SkColorType, kPremul_SkAlphaType); |
| sk_sp<SkData> 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 } ) { |
| surf->readPixels(info, data->writable_data(), info.minRowBytes(), x, y); |
| } |
| } |
| sk_sp<SkImage> image = SkImages::RasterFromData(info, data, info.minRowBytes()); |
| canvas->drawImage(image, 0, 0); |
| } |
| } // END FIDDLE |