Merge pull request #3878 from yurydelendik/issue2799

Removes cvt when hints invalid

src/core/fonts.js

@@ -3647,7 +3647,7 @@ var Font = (function FontClosure() {
         }
       }
 
-      function sanitizeTTPrograms(fpgm, prep) {
+      function sanitizeTTPrograms(fpgm, prep, cvt) {
         var ttContext = {
           functionsDefined: [],
           functionsUsed: [],
@@ -3664,6 +3664,11 @@ var Font = (function FontClosure() {
         if (fpgm) {
           checkInvalidFunctions(ttContext, maxFunctionDefs);
         }
+        if (cvt && (cvt.length & 1)) {
+          var cvtData = new Uint8Array(cvt.length + 1);
+          cvtData.set(cvt.data);
+          cvt.data = cvtData;
+        }
         return ttContext.hintsValid;
       }
 
@@ -3735,10 +3740,11 @@ var Font = (function FontClosure() {
       }
 
       var hintsValid = sanitizeTTPrograms(tables.fpgm, tables.prep,
-                                          maxFunctionDefs);
+                                          tables['cvt '], maxFunctionDefs);
       if (!hintsValid) {
         delete tables.fpgm;
         delete tables.prep;
+        delete tables['cvt '];
       }
 
       // Tables needs to be written by ascendant alphabetic order

test/pdfs/issue2799.pdf.link

@@ -0,0 +1 @@
+https://dl.dropboxusercontent.com/s/15j936nuidw0e8d/SIMPLE-Vivace.pdf?token_hash=AAEwO6O_zfDfSxC3Zmpoy_cNfiR109Tn-REcWa32slkaSA&disable_range=1

test/test_manifest.json

@@ -1392,6 +1392,14 @@
       "rounds": 1,
       "type": "eq"
     },
+    {  "id": "issue2799",
+      "file": "pdfs/issue2799.pdf",
+      "md5": "3d3224eae54bbae5fc76224a2af49486",
+      "rounds": 1,
+      "lastPage": 1,
+      "link": true,
+      "type": "eq"
+    },
     {  "id": "issue3025",
       "file": "pdfs/issue3025.pdf",
       "md5": "8e4e8eacbd7c4c248deeca0ec49d38da",