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+<html class="reftest-wait">
+<head>
+ <title>Image reftest wrapper</title>
+ <link rel="stylesheet" href="ImageDocument.css">
+ <style type="text/css">
+ #image_from_encoder { background-color: rgb(10, 100, 250); }
+ </style>
+
+ <script>
+ // Parse out the URL command line params
+ // Valid options are:
+ // - img=<reference image to use>
+ // - mime=<mime type>
+ // - options=<canvas toDataURL encoder options>
+ // Example:
+ // encoder.html?img=escape(reference_image.png)
+ // &mime=escape(image/ico)
+ // &options=escape(-moz-parse-options:bpp=24;format=png)
+ var getVars = {};
+ function buildValue(sValue)
+ {
+ if (/^\s*$/.test(sValue)) {
+ return null;
+ }
+ if (/^(true|false)$/i.test(sValue)) {
+ return sValue.toLowerCase() === "true";
+ }
+ if (isFinite(sValue)) {
+ return parseFloat(sValue);
+ }
+ if (isFinite(Date.parse(sValue))) {
+ return new Date(sValue);
+ }
+ return sValue;
+ }
+ if (window.location.search.length > 1) {
+ var couple, couples = window.location.search.substr(1).split("&");
+ for (var couplId = 0; couplId < couples.length; couplId++) {
+ couple = couples[couplId].split("=");
+ getVars[unescape(couple[0])] = couple.length > 1 ?
+ buildValue(unescape(couple[1])) : null;
+ }
+ }
+
+ // Create the image that we will load the reference image to
+ var img = new Image();
+
+ // Create the canvas that we will draw the image img onto and
+ // eventually call toDataURL to invoke the encoder on
+ var canvas = document.createElement("canvas");
+
+ // Starts the test by loading the reference image
+ function runTest()
+ {
+ // Load the reference image to start the test
+ img.onload = onReferenceImageLoad;
+ img.onerror = onReferenceImageLoad;
+ img.src = getVars.img;
+ }
+
+ // Once the encoded image from the canvas is loaded we can
+ // let the reftest compare
+ function onEncodedImageLoad()
+ {
+ document.documentElement.removeAttribute("class");
+ }
+
+ // Once the image loads async, we then draw the image onto the canvas,
+ // and call canvas.toDataURL to invoke the encoder, and then set a new
+ // image to the encoded data URL
+ function onReferenceImageLoad()
+ {
+ // mimeType will hold the mime type of which encoder to invoke
+ var mimeType = getVars.mime;
+ // parseOptions will hold the encoder options to use
+ var parseOptions = getVars.options;
+
+ // Obtain the canvas and draw the reference image
+ canvas.width = img.width;
+ canvas.height = img.height;
+ var ctx = canvas.getContext('2d')
+ ctx.drawImage(img, 0, 0);
+
+ // Obtain the data URL with parsing options if specified
+ var dataURL;
+ if (parseOptions)
+ dataURL = canvas.toDataURL(mimeType, parseOptions);
+ else
+ dataURL = canvas.toDataURL(mimeType);
+
+ // Setup async image loaded events
+ var image_from_encoder = document.getElementById('image_from_encoder');
+ image_from_encoder.onload = onEncodedImageLoad;
+ image_from_encoder.onerror = onEncodedImageLoad;
+
+ // Only set the image if we have the correct mime type
+ // because we want to fail the ref test if toDataURL fell
+ // back to image/png
+ if (dataURL.substring(0, mimeType.length+5) == "data:" + mimeType) {
+ // Set the image to the BMP data URL
+ image_from_encoder.src = dataURL;
+ } else {
+ // Blank image so that we won't have to timeout the reftest
+ image_from_encoder.src = "data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D";
+ }
+ };
+ </script>
+</head>
+
+<body onload="runTest()">
+<img id="image_from_encoder">
+</body>
+</html>