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Factor out ol.structs.Buffer#allocate

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This commit is contained in:
Tom Payne
2013-04-23 18:29:45 +02:00
parent bcf7707b01
commit 7fd2e1ffca
1 changed files with 14 additions and 4 deletions
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18
src/ol/structs/buffer.js
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@@ -72,16 +72,26 @@ ol.structs.Buffer = function(opt_arr, opt_used, opt_usage) {
};
/**
* @param {number} size Size.
* @return {number} Offset.
*/
ol.structs.Buffer.prototype.allocate = function(size) {
goog.asserts.assert(size > 0);
var offset = this.freeSet_.findRange(size);
goog.asserts.assert(offset != -1); // FIXME
this.freeSet_.removeRange(offset, offset + size);
return offset;
};
/**
* @param {Array.<number>} values Values.
* @return {number} Offset.
*/
ol.structs.Buffer.prototype.add = function(values) {
var size = values.length;
goog.asserts.assert(size > 0);
var offset = this.freeSet_.findRange(size);
goog.asserts.assert(offset != -1); // FIXME
this.freeSet_.removeRange(offset, offset + size);
var offset = this.allocate(size);
var i;
for (i = 0; i < size; ++i) {
this.arr_[offset + i] = values[i];