1cb93a386Sopenharmony_ci// Copyright 2019 Google LLC.
2cb93a386Sopenharmony_ci// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3cb93a386Sopenharmony_ci#include "tools/fiddle/examples.h"
4cb93a386Sopenharmony_ci// HASH=e9f70cbc9827097449a386ec7a8a8188
5cb93a386Sopenharmony_ciREG_FIDDLE(Bitmap_readPixels_2, 256, 256, false, 3) {
6cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
7cb93a386Sopenharmony_ci    std::vector<int32_t> srcPixels;
8cb93a386Sopenharmony_ci    srcPixels.resize(source.height() * source.rowBytes());
9cb93a386Sopenharmony_ci    for (int y = 0; y < 4; ++y) {
10cb93a386Sopenharmony_ci        for (int x = 0; x < 4; ++x) {
11cb93a386Sopenharmony_ci            SkPixmap pixmap(SkImageInfo::MakeN32Premul(source.width() / 4, source.height() / 4),
12cb93a386Sopenharmony_ci                    &srcPixels.front() + x * source.height() * source.width() / 4 +
13cb93a386Sopenharmony_ci                    y * source.width() / 4, source.rowBytes());
14cb93a386Sopenharmony_ci            source.readPixels(pixmap, x * source.width() / 4, y * source.height() / 4);
15cb93a386Sopenharmony_ci        }
16cb93a386Sopenharmony_ci    }
17cb93a386Sopenharmony_ci    canvas->scale(.5f, .5f);
18cb93a386Sopenharmony_ci    SkBitmap bitmap;
19cb93a386Sopenharmony_ci    bitmap.installPixels(SkImageInfo::MakeN32Premul(source.width(), source.height()),
20cb93a386Sopenharmony_ci                             &srcPixels.front(), source.rowBytes());
21cb93a386Sopenharmony_ci    canvas->drawImage(bitmap.asImage(), 0, 0);
22cb93a386Sopenharmony_ci}
23cb93a386Sopenharmony_ci}  // END FIDDLE
24