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Merge pull request #3199 from yurydelendik/cff-floats

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Rounding floats in CFF
This commit is contained in:
Brendan Dahl 2013-05-03 14:38:10 -07:00
commit 6b709ef42a
1 changed files with 8 additions and 0 deletions
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src/fonts.js
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@ -6897,6 +6897,14 @@ var CFFCompiler = (function CFFCompilerClosure() {
},
encodeFloat: function CFFCompiler_encodeFloat(num) {
var value = num.toString();
// rounding inaccurate doubles
var m = /\.(\d*?)(?:9{5,20}|0{5,20})\d{0,2}(?:e(.+)|$)/.exec(value);
if (m) {
var epsilon = parseFloat('1e' + ((m[2] ? +m[2] : 0) + m[1].length));
value = (Math.round(num * epsilon) / epsilon).toString();
}
var nibbles = '';
for (var i = 0, ii = value.length; i < ii; ++i) {
var a = value[i];