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Merge pull request #8335 from Snuffleupagus/jbig2-decodeRefinement-subtract-offsets

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Subtract the X/Y offsets when decoding refinement regions of JBIG2 images (issue 7145, 7308, 7401, 7850, 8270)
This commit is contained in:
Jonas Jenwald 2017-04-28 23:13:07 +02:00 committed by GitHub
commit 165294a05f
3 changed files with 10 additions and 2 deletions
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4
src/core/jbig2.js
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@ -394,8 +394,8 @@ var Jbig2Image = (function Jbig2ImageClosure() {
} }
} }
for (k = 0; k < referenceTemplateLength; k++) { for (k = 0; k < referenceTemplateLength; k++) {
i0 = i + referenceTemplateY[k] + offsetY; i0 = i + referenceTemplateY[k] - offsetY;
j0 = j + referenceTemplateX[k] + offsetX; j0 = j + referenceTemplateX[k] - offsetX;
if (i0 < 0 || i0 >= referenceHeight || j0 < 0 || if (i0 < 0 || i0 >= referenceHeight || j0 < 0 ||
j0 >= referenceWidth) { j0 >= referenceWidth) {
contextLabel <<= 1; // out of bound pixel contextLabel <<= 1; // out of bound pixel

1
test/pdfs/issue7308.pdf.link Normal file
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@ -0,0 +1 @@
https://github.com/mozilla/pdf.js/files/256692/ZGTA198001028.pdf

7
test/test_manifest.json
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@ -2322,6 +2322,13 @@
"link": true, "link": true,
"type": "eq" "type": "eq"
}, },
{ "id": "issue7308",
"file": "pdfs/issue7308.pdf",
"md5": "ba2e23d3af93ac2c634d77ccbe2e79d5",
"rounds": 1,
"link": true,
"type": "eq"
},
{ "id": "issue1597", { "id": "issue1597",
"file": "pdfs/issue1597.pdf", "file": "pdfs/issue1597.pdf",
"md5": "a5ebef467fd6e2fc0aeb56c9eb725ae3", "md5": "a5ebef467fd6e2fc0aeb56c9eb725ae3",