xref: /aosp_15_r20/external/skia/docs/examples/ImageInfo_makeWH.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(ImageInfo_makeWH, 256, 144, false, 3) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkImageInfo canvasImageInfo = canvas->imageInfo();
7     SkRect canvasBounds = SkRect::Make(canvasImageInfo.bounds());
8     canvas->drawImageRect(image, SkRect::Make(source.bounds()), canvasBounds, SkSamplingOptions(),
9                           nullptr, SkCanvas::kStrict_SrcRectConstraint);
10     SkImageInfo insetImageInfo =
11               canvasImageInfo.makeWH(canvasBounds.width() / 2, canvasBounds.height() / 2);
12     SkBitmap inset;
13     inset.allocPixels(insetImageInfo);
14     SkCanvas offscreen(inset);
15     offscreen.drawImageRect(image, SkRect::Make(source.bounds()), SkRect::Make(inset.bounds()),
16                             SkSamplingOptions(), nullptr, SkCanvas::kStrict_SrcRectConstraint);
17     canvas->drawImage(inset.asImage(), canvasBounds.width() / 4, canvasBounds.height() / 4);
18 }
19 }  // END FIDDLE
20