michael@0: importScripts('utils_bug743615.js');
michael@0: 
michael@0: self.onmessage = function onMessage(evt) {
michael@0:   // Check the pattern that was sent.
michael@0:   var imageData = evt.data.imageData;
michael@0:   var pattern = evt.data.pattern;
michael@0:   var statusMessage = checkPattern(imageData, pattern)
michael@0:                        ? 'PASS' : 'Got corrupt typed array in worker';
michael@0: 
michael@0:   // Check against the interface object.
michael@0:   if (!(imageData instanceof ImageData))
michael@0:     statusMessage += ", Bad interface object in worker";
michael@0: 
michael@0:   // Check the getters.
michael@0:   if (imageData.width * imageData.height != imageData.data.length / 4) {
michael@0:     statusMessage += ", Bad ImageData getters in worker: "
michael@0:     statusMessage += [imageData.width, imageData.height].join(', ');
michael@0:   }
michael@0: 
michael@0:   // Make sure that writing to .data is a no-op when not in strict mode.
michael@0:   var origData = imageData.data;
michael@0:   var threw = false;
michael@0:   try {
michael@0:     imageData.data = [];
michael@0:     imageData.width = 2;
michael@0:     imageData.height = 2;
michael@0:   } catch(e) { threw = true; }
michael@0:   if (threw || imageData.data !== origData)
michael@0:     statusMessage = statusMessage + ", Should silently ignore sets";
michael@0: 
michael@0: 
michael@0: 
michael@0:   // Send back a new pattern.
michael@0:   pattern = makePattern(imageData.data.length, 99, 2);
michael@0:   setPattern(imageData, pattern);
michael@0:   self.postMessage({ statusMessage: statusMessage, imageData: imageData,
michael@0:                      pattern: pattern });
michael@0: }