xref: /third_party/skia/docs/examples/ImageInfo_computeMinByteSize.cpp
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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=fc18640fdde437cb35338aed7c68d399
5cb93a386Sopenharmony_ciREG_FIDDLE(ImageInfo_computeMinByteSize, 256, 130, false, 0) {
6cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
7cb93a386Sopenharmony_ci    SkImageInfo info = SkImageInfo::MakeN32Premul(2, 2);
8cb93a386Sopenharmony_ci    const size_t size = info.computeMinByteSize();
9cb93a386Sopenharmony_ci    SkAutoTMalloc<SkPMColor> storage(size);
10cb93a386Sopenharmony_ci    SkPMColor* pixels = storage.get();
11cb93a386Sopenharmony_ci    SkBitmap bitmap;
12cb93a386Sopenharmony_ci    bitmap.setInfo(info);
13cb93a386Sopenharmony_ci    bitmap.setPixels(pixels);
14cb93a386Sopenharmony_ci    bitmap.eraseColor(SK_ColorRED);
15cb93a386Sopenharmony_ci    canvas->scale(50, 50);
16cb93a386Sopenharmony_ci    canvas->rotate(8);
17cb93a386Sopenharmony_ci    canvas->drawImage(bitmap.asImage(), 2, 0);
18cb93a386Sopenharmony_ci}
19cb93a386Sopenharmony_ci}  // END FIDDLE
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Indexes created Thu Nov 07 10:32:03 CST 2024