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Unified Diff: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-ImageBitmap-worker-to-worker.html

Issue 2321063002: Reland of Allow canvases to be GPU-accelerated in Workers (Closed)
Patch Set: Created 4 years, 3 months ago
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Index: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-ImageBitmap-worker-to-worker.html
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-ImageBitmap-worker-to-worker.html b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-ImageBitmap-worker-to-worker.html
new file mode 100644
index 0000000000000000000000000000000000000000..5c1f42d0d3bd0e8a00c5c4c24ce3c3e80c79f974
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-ImageBitmap-worker-to-worker.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<script src="../../resources/testharness.js"></script>
+<script src="../../resources/testharnessreport.js"></script>
+<script>
+var t = async_test("Test the case where an ImageBitmap produced on a worker is consumed on another worker");
+
+var worker1 = new Worker('OffscreenCanvas-ImageBitmap-worker-to-worker-1.js');
+var worker2 = new Worker('OffscreenCanvas-ImageBitmap-worker-to-worker-2.js');
+
+worker1.addEventListener('message', msg => {
+ worker2.postMessage(msg.data, [msg.data]);
+});
+
+worker2.addEventListener('message', t.step_func(function(msg) {
+ var testCtx = document.createElement('canvas').getContext('2d');
+ testCtx.drawImage(msg.data, 0, 0);
+ var pixelData = testCtx.getImageData(0, 0, 1, 1);
+ assert_equals(pixelData.data[0], 0, "red");
+ assert_equals(pixelData.data[1], 255, "green");
+ assert_equals(pixelData.data[2], 0, "blue");
+ assert_equals(pixelData.data[3], 255, "alpha");
+ t.done();
+}));
+
+worker1.postMessage("go");
+
+</script>
+

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