third_party/WebKit/LayoutTests/fast/canvas/webgl/offscreenCanvas-transferToImageBitmap.html - Issue 2139353003: Return a transparent black ImageBitmap when mailbox is invalid

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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/webgl/offscreenCanvas-transferToImageBitmap.html

Issue 2139353003: Return a transparent black ImageBitmap when mailbox is invalid (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 5 months ago

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

2 <html>	2 <html>

3 <body>	3 <body>

4 <canvas id='output' width = '100' height = '100'></canvas>	4 <canvas id='output1' width = '100' height = '100'></canvas>

	5 <canvas id='output2' width = '100' height = '100'></canvas>

5 <script>	6 <script>

6 if (window.testRunner) {	7 if (window.testRunner) {

7 testRunner.waitUntilDone();	8 testRunner.waitUntilDone();

8 }	9 }

9	10

10 var width = 100;	11 var width = 100;

11 var height = 100;	12 var height = 100;

12 var aCanvas = new OffscreenCanvas(width, height);	13 var aCanvas = new OffscreenCanvas(width, height);

13 var gl = aCanvas.getContext('webgl');	14 var gl = aCanvas.getContext('webgl');

14 gl.clearColor(1.0, 0.0, 0.0, 1.0);	15 gl.clearColor(1.0, 0.0, 0.0, 1.0);

15 gl.clear(gl.COLOR_BUFFER_BIT);	16 gl.clear(gl.COLOR_BUFFER_BIT);

16 var image = aCanvas.transferToImageBitmap();	17 var image1 = aCanvas.transferToImageBitmap();

	18 var image2 = aCanvas.transferToImageBitmap();
	Ken Russell (switch to Gerrit) 2016/07/12 22:52:03 Is there a test which does some work against "gl" Is there a test which does some work against "gl" between the fetching of image1 and image2? If not, there should be. Any drawing that is done to the OffscreenCanvas between calls to transferToImageBitmap should show up in the resulting ImageBitmap. The only situation where the code below should be taken is exactly this one -- where no work is done between the calls to transferToImageBitmap.
17	19

18 var canvas = document.getElementById("output");	20 var canvas1 = document.getElementById("output1");

19 var ctx = canvas.getContext('bitmaprenderer');	21 var ctx1 = canvas1.getContext('bitmaprenderer');

20 ctx.transferFromImageBitmap(image);	22 ctx1.transferFromImageBitmap(image1);

	23

	24 var canvas2 = document.getElementById('output2');

	25 var ctx2 = canvas2.getContext('bitmaprenderer');

	26 ctx2.transferFromImageBitmap(image2);

21	27

22 if (window.testRunner) {	28 if (window.testRunner) {

23 testRunner.notifyDone();	29 testRunner.notifyDone();

24 }	30 }

25 </script>	31 </script>

26 </body>	32 </body>

27 </html>	33 </html>

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