Backup work

worker.js

@@ -0,0 +1,113 @@
+"use strict";
+
+function log() {
+    var args = Array.prototype.slice.call(arguments);
+    postMessage("log");
+    postMessage(JSON.stringify(args))
+}
+
+var console = {
+    log: log
+}
+
+importScripts("canvas_proxy.js");
+importScripts("pdf.js");
+importScripts("fonts.js");
+importScripts("glyphlist.js")
+
+// var array = new Uint8Array(2);
+// array[0] = 1;
+// array[1] = 300;
+// postMessage(array);
+
+var timer = null;
+function tic() {
+    timer = Date.now();
+}
+
+function toc(msg) {
+    log("Took ", (Date.now() - timer));
+    timer = null;
+}
+
+
+var canvas = new CanvasProxy(1224, 1584);
+// canvas.moveTo(0, 10);
+// canvas.lineTo(0, 20);
+// canvas.lineTo(500, 500);
+// canvas.flush();
+// canvas.stroke();
+// canvas.flush();
+log("test");
+
+onmessage = function(event) {
+    var data = event.data;
+    var pdfDocument = new PDFDoc(new Stream(data));
+    var numPages = pdfDocument.numPages;
+
+    tic();
+    // Let's try to render the first page...
+    var page = pdfDocument.getPage(1);
+
+    // page.compile will collect all fonts for us, once we have loaded them
+    // we can trigger the actual page rendering with page.display
+    var fonts = [];
+
+    var gfx = new CanvasGraphics(canvas);
+    page.compile(gfx, fonts);
+    toc("compiled page");
+
+    //
+    var fontsReady = true;
+        // Inspect fonts and translate the missing one
+        var count = fonts.length;
+        for (var i = 0; i < count; i++) {
+          var font = fonts[i];
+          if (Fonts[font.name]) {
+            fontsReady = fontsReady && !Fonts[font.name].loading;
+            continue;
+          }
+
+          new Font(font.name, font.file, font.properties);
+          fontsReady = false;
+        }
+
+        function delayLoadFont() {
+          for (var i = 0; i < count; i++) {
+            if (Fonts[font.name].loading)
+              return;
+          }
+          clearInterval(pageInterval);
+          page.display(gfx);
+
+          canvas.flush();
+        };
+
+        if (fontsReady) {
+          delayLoadFont();
+        } else {
+          pageInterval = setInterval(delayLoadFont, 10);
+        }
+        postMessage(page.code.src);
+}
+
+// function open(url) {
+//     var req = new XMLHttpRequest();
+//     req.open("GET", url);
+//     // req.responseType = "arraybuffer";
+//     req.expected = 0;//(document.URL.indexOf("file:") == 0) ? 0 : 200;
+//     req.onreadystatechange = function() {
+//       postMessage("loaded");
+//       if (req.readyState == 4 && req.status == req.expected) {
+//         var data = req.mozResponseArrayBuffer || req.mozResponse ||
+//                    req.responseArrayBuffer || req.response;
+//         pdfDocument = new PDFDoc(new Stream(data));
+//         numPages = pdfDocument.numPages;
+//         // document.getElementById("numPages").innerHTML = numPages.toString();
+//         // goToPage(pageNum);
+//       }
+//     };
+//     req.send(null);
+// }
+//
+// open("compressed.tracemonkey-pldi-09.pdf")