Bitmap_allocN32Pixels.cpp 903 B

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  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. // HASH=c717491f9251604724c9cbde7088ec20
  5. REG_FIDDLE(Bitmap_allocN32Pixels, 256, 256, false, 0) {
  6. void draw(SkCanvas* canvas) {
  7. SkRandom random;
  8. SkBitmap bitmap;
  9. bitmap.allocN32Pixels(64, 64);
  10. bitmap.eraseColor(SK_ColorTRANSPARENT);
  11. for (int y = 0; y < 256; y += 64) {
  12. for (int x = 0; x < 256; x += 64) {
  13. SkColor color = random.nextU();
  14. uint32_t w = random.nextRangeU(4, 32);
  15. uint32_t cx = random.nextRangeU(0, 64 - w);
  16. uint32_t h = random.nextRangeU(4, 32);
  17. uint32_t cy = random.nextRangeU(0, 64 - h);
  18. bitmap.erase(color, SkIRect::MakeXYWH(cx, cy, w, h));
  19. canvas->drawBitmap(bitmap, x, y);
  20. }
  21. }
  22. }
  23. } // END FIDDLE