third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-getContext-in-worker.html - Issue 1914233006: Implement offscreenCanvas.getContext('webgl') on a worker thread

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Issue 1914233006: Implement offscreenCanvas.getContext('webgl') on a worker thread (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: address kbr@'s comment Created 4 years, 7 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <html>	2 <html>

3 <script src="../../resources/js-test.js"></script>	3 <script src="../../resources/js-test.js"></script>

4 <body>	4 <body>

5 <script id="myWorker" type="text/worker">	5 <script id="myWorker" type="text/worker">

6 self.onmessage = function(e) {	6 self.onmessage = function(e) {

7 var aCanvas = new OffscreenCanvas(50, 50);	7 var aCanvas = new OffscreenCanvas(50, 50);

8 var bCanvas = new OffscreenCanvas(50, 50);	8 var bCanvas = new OffscreenCanvas(50, 50);

9 try {	9 try {

10 var ctx1 = aCanvas.getContext('2d');	10 var ctx1 = aCanvas.getContext('2d');

11 //TODO(crbug.com/602391): implement get webgl context in worker

12 var ctx2 = bCanvas.getContext('webgl');	11 var ctx2 = bCanvas.getContext('webgl');

13 if (toString.call(ctx1) != '[object OffscreenCanvasRenderingContext2D]') {	12 if (!(ctx1 instanceof OffscreenCanvasRenderingContext2D)) {

14 self.postMessage("aCanvas.getContext('2d') does not return [object Off screenCanvasRenderingContext2D]");	13 self.postMessage("aCanvas.getContext('2d') returns " + ctx1);

15 } else if (toString.call(ctx2) != '[object Null]') {	14 } else if (!(ctx2 instanceof WebGLRenderingContext)) {

16 self.postMessage("bCanvas.getContext('webgl') does not return [object Null]");	15 self.postMessage("bCanvas.getContext('webgl') returns " + ctx2);

17 } else {	16 } else {

18 self.postMessage("success");	17 self.postMessage("success");

19 }	18 }

20 } catch (e) {	19 } catch (e) {

21 self.postMessage(e);	20 self.postMessage(e);

22 }	21 }

23 };	22 };

24 </script>	23 </script>

25	24

26 <script>	25 <script>

27 jsTestIsAsync = true;	26 jsTestIsAsync = true;

28 description("Tests that the 2D context of OffscreenCanvas can be constructed on a worker thread.");	27 description("Tests that the 2D and webgl context of OffscreenCanvas can be const ructed on a worker thread.");

29	28

30 function makeWorker(script) {	29 function makeWorker(script) {

31 var blob = new Blob([script]);	30 var blob = new Blob([script]);

32 return new Worker(URL.createObjectURL(blob));	31 return new Worker(URL.createObjectURL(blob));

33 }	32 }

34	33

35 function handleMessageFromWorker(msg)	34 function handleMessageFromWorker(msg)

36 {	35 {

37 if (msg.data == "success") {	36 if (msg.data == "success") {

38 testPassed("getContext('2d') correctly returns [object OffscreenCanvasRe nderingContext2D].");	37 testPassed("getContext('2d') and getContext('webgl') works on a worker t hread");

39 } else {	38 } else {

40 testFailed(msg.data);	39 testFailed(msg.data);

41 }	40 }

42 finishJSTest();	41 finishJSTest();

43 }	42 }

44	43

45 var worker = makeWorker(document.getElementById('myWorker').textContent);	44 var worker = makeWorker(document.getElementById('myWorker').textContent);

46 worker.addEventListener('message', handleMessageFromWorker);	45 worker.addEventListener('message', handleMessageFromWorker);

47 worker.postMessage("");	46 worker.postMessage("");

48 </script>	47 </script>

49	48

50 </body>	49 </body>

51 </html>	50 </html>

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