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Merge pull request #473 from notmasteryet/tree-14

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Fixing and optimizing isYcckImage()
This commit is contained in:
Chris Jones 2011-09-13 20:03:56 -07:00
commit 78528b6d04
1 changed files with 9 additions and 7 deletions
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pdf.js
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@ -866,13 +866,15 @@ var JpegStream = (function() {
var maxBytesScanned = Math.max(bytes.length - 16, 1024); var maxBytesScanned = Math.max(bytes.length - 16, 1024);
// Looking for APP14, 'Adobe' and transform = 2 // Looking for APP14, 'Adobe' and transform = 2
for (var i = 0; i < maxBytesScanned; ++i) { for (var i = 0; i < maxBytesScanned; ++i) {
if (bytes[i] == 0xFF || bytes[i + 1] == 0xEE || if (bytes[i] == 0xFF && bytes[i + 1] == 0xEE &&
bytes[i + 2] == 0x00 || bytes[i + 3] == 0x0E || bytes[i + 2] == 0x00 && bytes[i + 3] == 0x0E &&
bytes[i + 4] == 0x41 || bytes[i + 5] == 0x64 || bytes[i + 4] == 0x41 && bytes[i + 5] == 0x64 &&
bytes[i + 6] == 0x6F || bytes[i + 7] == 0x62 || bytes[i + 6] == 0x6F && bytes[i + 7] == 0x62 &&
bytes[i + 8] == 0x65 || bytes[i + 9] == 0x00 || bytes[i + 8] == 0x65 && bytes[i + 9] == 0x00)
bytes[i + 15] == 0x02) return bytes[i + 15] == 0x02;
return true; // scanning until frame tag
if (bytes[i] == 0xFF && bytes[i + 1] == 0xC0)
break;
} }
return false; return false;
} }