skia2/modules/canvaskit/htmlcanvas/util.js
Kevin Lubick 3f67f411d8 [canvaskit] Move from experimental to modules
Bug: skia:
Change-Id: I2ffd54cf81c974f3a80103e1726a06067cc90d82
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/200044
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2019-03-11 21:09:52 +00:00

36 lines
915 B
JavaScript

// General purpose utility functions go in this file.
function allAreFinite(args) {
for (var i = 0; i < args.length; i++) {
if (args[i] !== undefined && !Number.isFinite(args[i])) {
return false;
}
}
return true;
}
function toBase64String(bytes) {
if (isNode) {
return Buffer.from(bytes).toString('base64');
} else {
// From https://stackoverflow.com/a/25644409
// because the naive solution of
// btoa(String.fromCharCode.apply(null, bytes));
// would occasionally throw "Maximum call stack size exceeded"
var CHUNK_SIZE = 0x8000; //arbitrary number
var index = 0;
var length = bytes.length;
var result = '';
var slice;
while (index < length) {
slice = bytes.slice(index, Math.min(index + CHUNK_SIZE, length));
result += String.fromCharCode.apply(null, slice);
index += CHUNK_SIZE;
}
return btoa(result);
}
}