skia2/docs/examples/Path_updateBoundsCache.cpp
Hal Canary d88c2e8e09 Docs: rename examples files to match names
Change-Id: I9a6b2780cfdd91cdd16d5a08eb9ba1214492cb7e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201982
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-03-19 18:49:22 +00:00

25 lines
812 B
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "fiddle/examples.h"
// HASH=bb761cd858e6d0ca05627262cd22ff5e
REG_FIDDLE(Path_updateBoundsCache, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
double times[2] = { 0, 0 };
int N = 100;
for (int i = 0; i < N; ++i) {
SkPath path;
for (int j = 1; j < 100; ++ j) {
path.addCircle(50 + j, 45 + j, 25 + j);
}
if (1 & i) {
path.updateBoundsCache();
}
double start = SkTime::GetNSecs();
(void) path.getBounds();
times[1 & i] += SkTime::GetNSecs() - start;
}
SkDebugf("uncached avg: %g ms\n", times[0] / (double)N);
SkDebugf("cached avg: %g ms\n", times[1] / (double)N);
}
} // END FIDDLE