1// Copyright 2019 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3#include "tools/fiddle/examples.h"
4// HASH=e18549b5ee1039cb61b0bb38c2104fc9
5REG_FIDDLE(Pixmap_readPixels_4, 256, 256, false, 3) {
6void draw(SkCanvas* canvas) {
7    SkImageInfo info = SkImageInfo::MakeN32Premul(image->width(), image->height());
8    std::vector<int32_t> srcPixels;
9    const int rowBytes = image->width() * 4;
10    srcPixels.resize(image->height() * rowBytes);
11    SkPixmap pixmap(info, (const void*) &srcPixels.front(), rowBytes);
12    image->readPixels(nullptr, pixmap, 0, 0);
13    for (int index = 0; index < 3; ++index ) {
14        std::vector<int32_t> dstPixels;
15        dstPixels.resize(image->height() * rowBytes);
16        SkPixmap dstmap(info, &dstPixels.front(), rowBytes);
17        pixmap.readPixels(dstmap);
18        SkBitmap bitmap;
19        bitmap.installPixels(dstmap);
20        canvas->translate(32, 32);
21        canvas->drawImage(bitmap.asImage(), 0, 0);
22    }
23}
24}  // END FIDDLE
25