xref: /aosp_15_r20/external/skia/docs/examples/Bitmap_tryAllocN32Pixels.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_tryAllocN32Pixels, 256, 160, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkBitmap bitmap;
7     if (bitmap.tryAllocN32Pixels(80, 80)) {
8         bitmap.eraseColor(SK_ColorTRANSPARENT);
9         bitmap.erase(0x7f3f7fff, SkIRect::MakeWH(50, 30));
10         bitmap.erase(0x3f7fff3f, SkIRect::MakeXYWH(20, 10, 50, 30));
11         bitmap.erase(0x5fff3f7f, SkIRect::MakeXYWH(40, 20, 50, 30));
12         canvas->drawImage(bitmap.asImage(), 0, 0);
13         for (int x : { 0, 30, 60, 90 } ) {
14             canvas->drawImage(bitmap.asImage(), x, 70);
15         }
16     }
17 }
18 }  // END FIDDLE
19