xref: /aosp_15_r20/external/skia/docs/examples/Bitmap_tryAllocPixels_3.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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_tryAllocPixels_3, 256, 50, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     uint8_t set1[5] = { 0xCA, 0xDA, 0xCA, 0xC9, 0xA3 };
7     SkBitmap bitmap;
8     bitmap.installPixels(SkImageInfo::Make(5, 1, kGray_8_SkColorType, kOpaque_SkAlphaType), set1, 5);
9     canvas->scale(10, 50);
10     canvas->drawImage(bitmap.asImage(), 0, 0);
11     if (bitmap.tryAllocPixels()) {
12         bitmap.eraseColor(SK_ColorBLACK);
13         canvas->drawImage(bitmap.asImage(), 8, 0);
14         bitmap.setPixels(set1);
15         canvas->drawImage(bitmap.asImage(), 16, 0);
16     }
17 }
18 }  // END FIDDLE
19