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=febdbfac6cf4cde69837643be2e1f6dd
5 REG_FIDDLE(Pixmap_extractSubset, 256, 128, false, 3) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 std::vector<int32_t> pixels;
8 pixels.resize(image->height() * image->width() * 4);
9 SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
10 image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
11 image->readPixels(nullptr, pixmap, 0, 0);
12 SkPixmap inset;
13 if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
14 SkBitmap bitmap;
15 bitmap.installPixels(inset);
16 canvas->drawImage(bitmap.asImage(), 0, 0);
17 }
18 }
19 } // END FIDDLE
20