blob: fd6acba3fe075827ee00d13d685ca6f40ce14237 [file] [log] [blame]
// 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(SkSurface::MakeRasterN32Premul(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 = SkImage::MakeRasterData(info, data, info.minRowBytes());
canvas->drawImage(image, 0, 0);
}
} // END FIDDLE