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A few small optimizations for CIDFontType2 fonts

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Cache a constant length and replace one usage of |in| with a comparison against undefined.
This commit is contained in:
Jonas Jenwald 2014-06-25 20:56:43 +02:00
parent 2e98f9095e
commit c121def806
1 changed files with 4 additions and 3 deletions
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7
src/core/fonts.js
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@ -3888,8 +3888,9 @@ var Font = (function FontClosure() {
} }
var charCodeToGlyphId = [], charCode; var charCodeToGlyphId = [], charCode;
if (properties.type == 'CIDFontType2') { if (properties.type === 'CIDFontType2') {
var cidToGidMap = properties.cidToGidMap || []; var cidToGidMap = properties.cidToGidMap || [];
var cidToGidMapLength = cidToGidMap.length;
var cMap = properties.cMap.map; var cMap = properties.cMap.map;
for (charCode in cMap) { for (charCode in cMap) {
charCode |= 0; charCode |= 0;
@ -3897,9 +3898,9 @@ var Font = (function FontClosure() {
assert(cid.length === 1, 'Max size of CID is 65,535'); assert(cid.length === 1, 'Max size of CID is 65,535');
cid = cid.charCodeAt(0); cid = cid.charCodeAt(0);
var glyphId = -1; var glyphId = -1;
if (cidToGidMap.length === 0) { if (cidToGidMapLength === 0) {
glyphId = charCode; glyphId = charCode;
} else if (cid in cidToGidMap) { } else if (cidToGidMap[cid] !== undefined) {
glyphId = cidToGidMap[cid]; glyphId = cidToGidMap[cid];
} }
if (glyphId >= 0 && glyphId < numGlyphs) { if (glyphId >= 0 && glyphId < numGlyphs) {