submodule/skia/docs/examples/upscale_checkerboard.cpp

   1 // Copyright 2020 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(upscale_checkerboard, 512, 512, false, 0) {
   5 void draw(SkCanvas* canvas) {
   6     SkPMColor p[] = {0xFFFFFFFF, 0xFF000000, 0xFF000000, 0xFFFFFFFF};
   7     const auto info = SkImageInfo::MakeN32Premul(2, 2);
   8     auto img = SkImage::MakeRasterCopy({info, p, 8});
   9
  10     SkPaint paint;
  11     paint.setShader(img->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
  12                                     SkSamplingOptions(SkFilterMode::kLinear)));
  13
  14     canvas->translate(20, 20);
  15     canvas->scale(20, 20);
  16     canvas->drawRect({0, 0, 20, 20}, paint);
  17 }
  18 }  // END FIDDLE