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Use Array.join to build up strings in readPostScriptTable().

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This avoids about 5 MiB of string allocations on one test case.
This commit is contained in:
Nicholas Nethercote 2014-07-23 22:17:56 -07:00
parent 584fef90ab
commit 1039791472
1 changed files with 4 additions and 3 deletions
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7
src/core/fonts.js
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@ -3430,13 +3430,14 @@ var Font = (function FontClosure() {
break;
}
var customNames = [];
var strBuf = [];
while (font.pos < end) {
var stringLength = font.getByte();
var string = '';
strBuf.length = stringLength;
for (i = 0; i < stringLength; ++i) {
string += String.fromCharCode(font.getByte());
strBuf[i] = String.fromCharCode(font.getByte());
}
customNames.push(string);
customNames.push(strBuf.join(''));
}
glyphNames = [];
for (i = 0; i < numGlyphs; ++i) {