PreMultiplyColor.cpp 1.3 KB

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  1. #if 0 // Disabled until updated to use current API.
  2. // Copyright 2019 Google LLC.
  3. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
  4. #include "tools/fiddle/examples.h"
  5. // HASH=0bcc0f86a2aefc899f3500503dce6968
  6. REG_FIDDLE(PreMultiplyColor, 300, 128, false, 0) {
  7. void draw(SkCanvas* canvas) {
  8. SkColor unpremultiplied = SkColorSetARGB(160, 128, 160, 192);
  9. SkPMColor premultiplied = SkPreMultiplyColor(unpremultiplied);
  10. canvas->drawString("Unpremultiplied:", 20, 20, SkPaint());
  11. std::string str = "alpha=" + std::to_string(SkColorGetA(unpremultiplied));
  12. str += " red=" + std::to_string(SkColorGetR(unpremultiplied));
  13. str += " green=" + std::to_string(SkColorGetG(unpremultiplied));
  14. str += " blue=" + std::to_string(SkColorGetB(unpremultiplied));
  15. canvas->drawString(str.c_str(), 20, 40, SkPaint());
  16. canvas->drawString("Premultiplied:", 20, 80, SkPaint());
  17. str = "alpha=" + std::to_string(SkColorGetA(premultiplied));
  18. str += " red=" + std::to_string(SkColorGetR(premultiplied));
  19. str += " green=" + std::to_string(SkColorGetG(premultiplied));
  20. str += " blue=" + std::to_string(SkColorGetB(premultiplied));
  21. canvas->drawString(str.c_str(), 20, 100, SkPaint());
  22. }
  23. } // END FIDDLE
  24. #endif // Disabled until updated to use current API.