ImageInfo_isOpaque.cpp 927 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=e9bd4f02b6cfb3ac864cb7fee7d7299c
  5. REG_FIDDLE(ImageInfo_isOpaque, 256, 256, true, 0) {
  6. void draw(SkCanvas* canvas) {
  7. const int height = 2;
  8. const int width = 2;
  9. SkBitmap bitmap;
  10. SkImageInfo imageInfo = SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType);
  11. bitmap.setInfo(imageInfo);
  12. for (int index = 0; index < 2; ++index) {
  13. bitmap.allocPixels();
  14. bitmap.eraseColor(0x00000000);
  15. SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
  16. bitmap.eraseColor(0xFFFFFFFF);
  17. SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
  18. imageInfo = imageInfo.makeAlphaType(kOpaque_SkAlphaType);
  19. bitmap.setInfo(imageInfo);
  20. }
  21. }
  22. } // END FIDDLE