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 REG_FIDDLE(Bitmap_readPixels_3, 256, 128, false, 3) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 std::vector<int32_t> srcPixels;
7 srcPixels.resize(source.height() * source.width() * 8);
8 for (int i = 0; i < 2; ++i) {
9 SkPixmap pixmap(SkImageInfo::Make(source.width() * 2, source.height(),
10 i ? kRGBA_8888_SkColorType : kBGRA_8888_SkColorType, kPremul_SkAlphaType),
11 &srcPixels.front() + i * source.width(), source.rowBytes() * 2);
12 source.readPixels(pixmap);
13 }
14 canvas->scale(.25f, .25f);
15 SkBitmap bitmap;
16 bitmap.installPixels(SkImageInfo::MakeN32Premul(source.width() * 2, source.height()),
17 &srcPixels.front(), source.rowBytes() * 2);
18 canvas->drawImage(bitmap.asImage(), 0, 0);
19 }
20 } // END FIDDLE
21