xref: /third_party/skia/docs/examples/Bitmap_tryAllocPixels_3.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=720e4c053fae9e929ab6518b47e49370
5cb93a386Sopenharmony_ciREG_FIDDLE(Bitmap_tryAllocPixels_3, 256, 50, false, 0) {
6cb93a386Sopenharmony_civoid draw(SkCanvas* canvas) {
7cb93a386Sopenharmony_ci    uint8_t set1[5] = { 0xCA, 0xDA, 0xCA, 0xC9, 0xA3 };
8cb93a386Sopenharmony_ci    SkBitmap bitmap;
9cb93a386Sopenharmony_ci    bitmap.installPixels(SkImageInfo::Make(5, 1, kGray_8_SkColorType, kOpaque_SkAlphaType), set1, 5);
10cb93a386Sopenharmony_ci    canvas->scale(10, 50);
11cb93a386Sopenharmony_ci    canvas->drawImage(bitmap.asImage(), 0, 0);
12cb93a386Sopenharmony_ci    if (bitmap.tryAllocPixels()) {
13cb93a386Sopenharmony_ci        bitmap.eraseColor(SK_ColorBLACK);
14cb93a386Sopenharmony_ci        canvas->drawImage(bitmap.asImage(), 8, 0);
15cb93a386Sopenharmony_ci        bitmap.setPixels(set1);
16cb93a386Sopenharmony_ci        canvas->drawImage(bitmap.asImage(), 16, 0);
17cb93a386Sopenharmony_ci    }
18cb93a386Sopenharmony_ci}
19cb93a386Sopenharmony_ci}  // END FIDDLE
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Indexes created Thu Nov 07 10:32:03 CST 2024