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36 lines
606 B
36 lines
606 B
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/*!
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* Canvas - utils
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* Copyright (c) 2010 LearnBoost <tj@learnboost.com>
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* MIT Licensed
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*/
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/**
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* Concatenate `bufs` / `lens`.
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*
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* @param {Array} bufs
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* @param {Array} lens
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* @return {Buffer}
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* @api private
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*/
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exports.concatBuffers = function(bufs, lens) {
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var buf
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, length = 0
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, offset = 0;
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// Determine length
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for (var i = 0, len = lens.length; i < len; ++i) {
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length += lens[i];
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}
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// Allocate buffer
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buf = new Buffer(length);
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// Copy
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for (var i = 0, len = bufs.length; i < len; ++i) {
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bufs[i].copy(buf, offset);
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offset += lens[i];
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}
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return buf;
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};
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