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Merge pull request #4894 from CodingFabian/optimize-jpgjs-receiveAndExtend

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Optimize JPG.js receiveAndExtend for 1 bit case.
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Yury Delendik 2014-06-05 10:15:28 -05:00
commit 9308b525e5
1 changed files with 3 additions and 0 deletions
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src/core/jpg.js
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@ -159,6 +159,9 @@ var JpegImage = (function jpegImage() {
} }
function receiveAndExtend(length) { function receiveAndExtend(length) {
if (length === 1) {
return readBit() === 1 ? 1 : -1;
}
var n = receive(length); var n = receive(length);
if (n >= 1 << (length - 1)) { if (n >= 1 << (length - 1)) {
return n; return n;