Bitmap_isOpaque.cpp 852 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=5e76b68bb46d54315eb0c12d83bd6949
  5. REG_FIDDLE(Bitmap_isOpaque, 256, 256, true, 0) {
  6. void draw(SkCanvas* canvas) {
  7. const int height = 2;
  8. const int width = 2;
  9. SkBitmap bitmap;
  10. bitmap.setInfo(SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType));
  11. for (int index = 0; index < 2; ++index) {
  12. bitmap.allocPixels();
  13. bitmap.eraseColor(0x00000000);
  14. SkDebugf("isOpaque: %s\n", bitmap.isOpaque() ? "true" : "false");
  15. bitmap.eraseColor(0xFFFFFFFF);
  16. SkDebugf("isOpaque: %s\n", bitmap.isOpaque() ? "true" : "false");
  17. bitmap.setInfo(bitmap.info().makeAlphaType(kOpaque_SkAlphaType));
  18. }
  19. }
  20. } // END FIDDLE