diff options
| author | Jules Laplace <julescarbon@gmail.com> | 2018-12-14 17:24:23 +0100 |
|---|---|---|
| committer | Jules Laplace <julescarbon@gmail.com> | 2018-12-14 17:24:23 +0100 |
| commit | 36b6082dfa768cbf35d40dc2c82706dfae0b687b (patch) | |
| tree | 70a49e3623b708caad8d93cd722512d5438a0bec /faiss/static/js/dataUriToBlob.js | |
| parent | b39b1d51db2d485e9c60fb4d3f5445474cef8700 (diff) | |
flask server click script
Diffstat (limited to 'faiss/static/js/dataUriToBlob.js')
| -rw-r--r-- | faiss/static/js/dataUriToBlob.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/faiss/static/js/dataUriToBlob.js b/faiss/static/js/dataUriToBlob.js new file mode 100644 index 00000000..80189b8d --- /dev/null +++ b/faiss/static/js/dataUriToBlob.js @@ -0,0 +1,58 @@ +var dataUriToUint8Array = function(uri){ + var data = uri.split(',')[1]; + var bytes = atob(data); + var buf = new ArrayBuffer(bytes.length); + var u8 = new Uint8Array(buf); + for (var i = 0; i < bytes.length; i++) { + u8[i] = bytes.charCodeAt(i); + } + return u8 +} + +window.dataUriToBlob = (function(){ +/** + * Blob constructor. + */ + +var Blob = window.Blob; + +/** + * ArrayBufferView support. + */ + +var hasArrayBufferView = new Blob([new Uint8Array(100)]).size == 100; + +/** + * Return a `Blob` for the given data `uri`. + * + * @param {String} uri + * @return {Blob} + * @api public + */ + +var dataUriToBlob = function(uri){ + var data = uri.split(',')[1]; + var bytes = atob(data); + var buf = new ArrayBuffer(bytes.length); + var arr = new Uint8Array(buf); + for (var i = 0; i < bytes.length; i++) { + arr[i] = bytes.charCodeAt(i); + } + + if (!hasArrayBufferView) arr = buf; + var blob = new Blob([arr], { type: mime(uri) }); + blob.slice = blob.slice || blob.webkitSlice; + return blob; +}; + +/** + * Return data uri mime type. + */ + +function mime(uri) { + return uri.split(';')[0].slice(5); +} + +return dataUriToBlob; + +})() |
