1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Surface_readPixels_2, 256, 64, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkSurface> surf(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(64, 64)));
7*c8dee2aaSAndroid Build Coastguard Worker auto surfCanvas = surf->getCanvas();
8*c8dee2aaSAndroid Build Coastguard Worker surfCanvas->clear(SK_ColorRED);
9*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
10*c8dee2aaSAndroid Build Coastguard Worker surfCanvas->drawOval({4, 8, 58, 54}, paint);
11*c8dee2aaSAndroid Build Coastguard Worker SkImageInfo info = SkImageInfo::Make(64, 64, kBGRA_8888_SkColorType, kPremul_SkAlphaType);
12*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkData> data(SkData::MakeUninitialized(info.minRowBytes() * info.height()));
13*c8dee2aaSAndroid Build Coastguard Worker sk_bzero(data->writable_data(), info.minRowBytes() * info.height());
14*c8dee2aaSAndroid Build Coastguard Worker for (int x : { 32, -32 } ) {
15*c8dee2aaSAndroid Build Coastguard Worker for (int y : { 32, -32 } ) {
16*c8dee2aaSAndroid Build Coastguard Worker surf->readPixels(info, data->writable_data(), info.minRowBytes(), x, y);
17*c8dee2aaSAndroid Build Coastguard Worker }
18*c8dee2aaSAndroid Build Coastguard Worker }
19*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkImage> image = SkImages::RasterFromData(info, data, info.minRowBytes());
20*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(image, 0, 0);
21*c8dee2aaSAndroid Build Coastguard Worker }
22*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
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