Path_updateBoundsCache.cpp 818 B

123456789101112131415161718192021222324
  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=bb761cd858e6d0ca05627262cd22ff5e
  5. REG_FIDDLE(Path_updateBoundsCache, 256, 256, true, 0) {
  6. void draw(SkCanvas* canvas) {
  7. double times[2] = { 0, 0 };
  8. int N = 100;
  9. for (int i = 0; i < N; ++i) {
  10. SkPath path;
  11. for (int j = 1; j < 100; ++ j) {
  12. path.addCircle(50 + j, 45 + j, 25 + j);
  13. }
  14. if (1 & i) {
  15. path.updateBoundsCache();
  16. }
  17. double start = SkTime::GetNSecs();
  18. (void) path.getBounds();
  19. times[1 & i] += SkTime::GetNSecs() - start;
  20. }
  21. SkDebugf("uncached avg: %g ms\n", times[0] / (double)N);
  22. SkDebugf("cached avg: %g ms\n", times[1] / (double)N);
  23. }
  24. } // END FIDDLE