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Diffstat (limited to 'third_party/WebKit/LayoutTests/virtual/threaded/fast/canvas-toBlob/canvas-toBlob-toDataURL-race-imageEncoder-png.html')
| -rw-r--r-- | third_party/WebKit/LayoutTests/virtual/threaded/fast/canvas-toBlob/canvas-toBlob-toDataURL-race-imageEncoder-png.html | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/third_party/WebKit/LayoutTests/virtual/threaded/fast/canvas-toBlob/canvas-toBlob-toDataURL-race-imageEncoder-png.html b/third_party/WebKit/LayoutTests/virtual/threaded/fast/canvas-toBlob/canvas-toBlob-toDataURL-race-imageEncoder-png.html new file mode 100644 index 0000000..8940ce5 --- /dev/null +++ b/third_party/WebKit/LayoutTests/virtual/threaded/fast/canvas-toBlob/canvas-toBlob-toDataURL-race-imageEncoder-png.html @@ -0,0 +1,21 @@ +<script src = "../../../../resources/js-test.js"></script> +<script src = "../../../../fast/canvas/script-tests/canvas-toBlob-toDataURL-race.js"></script> +<script type = 'text/javascript'> +description("Verifies if synchronous PNG image encoding (toDataURL) conflicts with asynchronous image encoding (toBlob)"); + +//Fire a bunch of toBlob operations of canvas to keep the async thread busy +var j = 0; // due to async nature of toBlob we need a separate counter +for (var i = 0; i < numToBlobCalls; i++) +{ + canvas.toBlob(function(blob) { + url = URL.createObjectURL(blob); + testImages[j++].src = url; + }); +} + +//Then file a bunch of toDataURL operation on main thread, so both threads now compete for image encoding +for (var i = numToBlobCalls; i < (numToDataURLCalls + numToBlobCalls); i++) +{ + testImages[i].src = canvas.toDataURL(); +} +</script> |