WIP: Switch to Pako for zlib

This commit introduces an alternate implementation of the zlib
decompressor based on Pako (https://github.com/nodeca/pako).

include/rfb.js

@@ -380,8 +380,9 @@ var RFB;
             }
 
             for (i = 0; i < 4; i++) {
-                this._FBU.zlibs[i] = new TINF();
-                this._FBU.zlibs[i].init();
+                //this._FBU.zlibs[i] = new TINF();
+                //this._FBU.zlibs[i].init();
+                this._FBU.zlibs[i] = new inflator.Inflate();
             }
         },
 
@@ -1181,7 +1182,14 @@ var RFB;
 
                 this._timing.last_fbu = (new Date()).getTime();
 
-                ret = this._encHandlers[this._FBU.encoding]();
+                var handler = this._encHandlers[this._FBU.encoding];
+                try {
+                    //ret = this._encHandlers[this._FBU.encoding]();
+                    ret = handler();
+                } catch (ex)  {
+                    console.log("missed " + this._FBU.encoding + ": " + handler);
+                    ret = this._encHandlers[this._FBU.encoding]();
+                }
 
                 now = (new Date()).getTime();
                 this._timing.cur_fbu += (now - this._timing.last_fbu);
@@ -1639,12 +1647,14 @@ var RFB;
                     }
                 }
 
-                var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0);
-                if (uncompressed.status !== 0) {
+                //var uncompressed = this._FBU.zlibs[streamId].uncompress(data, 0);
+                var uncompressed = this._FBU.zlibs[streamId].inflate(data, true);
+                /*if (uncompressed.status !== 0) {
                     Util.Error("Invalid data in zlib stream");
-                }
+                }*/
 
-                return uncompressed.data;
+                //return uncompressed.data;
+                return uncompressed;
             }.bind(this);
 
             var indexedToRGB = function (data, numColors, palette, width, height) {

include/ui.js

@@ -21,7 +21,7 @@ var UI;
     window.onscriptsload = function () { UI.load(); };
     Util.load_scripts(["webutil.js", "base64.js", "websock.js", "des.js",
                        "keysymdef.js", "keyboard.js", "input.js", "display.js",
-                       "jsunzip.js", "rfb.js", "keysym.js"]);
+                       "rfb.js", "keysym.js", "inflator.js"]);
 
     UI = {
 

tests/test.rfb.js

-// requires local modules: util, base64, websock, rfb, keyboard, keysym, keysymdef, input, jsunzip, des, display
+// requires local modules: util, base64, websock, rfb, keyboard, keysym, keysymdef, input, inflator, des, display
 // requires test modules: fake.websocket, assertions
 /* jshint expr: true */
 var assert = chai.assert;

tests/vnc_playback.html

@@ -61,7 +61,7 @@
             // Load supporting scripts
             Util.load_scripts(["base64.js", "websock.js", "des.js", "keysym.js",
                             "keysymdef.js", "keyboard.js", "input.js", "display.js",
-                            "jsunzip.js", "rfb.js", "playback.js", fname]);
+                            "rfb.js", "playback.js", "inflator.js", fname]);
 
         } else {
             message("Must specify data=FOO in query string.");

vnc_auto.html

@@ -77,7 +77,7 @@
         // Load supporting scripts
         Util.load_scripts(["webutil.js", "base64.js", "websock.js", "des.js",
                            "keysymdef.js", "keyboard.js", "input.js", "display.js",
-                           "jsunzip.js", "rfb.js", "keysym.js"]);
+                           "inflator.js", "rfb.js", "keysym.js"]);
 
         var rfb;
         var resizeTimeout;