jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
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https://jsperf.com/negative-modulo/2
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Converting a binary mask to RGBA where RGB are 0xff and the alpha channel is 0xff for foreground pixels and 0x0 for background pixels (data has 63 items)
const data = new Uint8Array([
0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff,
0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00,
0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff,
0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00,
0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff,
0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00
]);
Ready to run.
Test | Ops/sec | |
---|---|---|
Assigning pixels |
| ready |
Shifting pixels |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.