transferBackFromGPUTexture-disallows-transfer-back-after-draw.https.html

<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./webgpu-helpers.js"></script>
</head>

<h1>Canvas2D WebGPU Transfer:
transferBackFromGPUTexture-disallows-transfer-back-after-draw</h1>

<p>WebGPU access does not allow transferring back after drawing to the canvas.
</p>

<canvas id="c" width="50" height="50"></canvas>

<script>

promise_test(() => {
    return with_webgpu((adapter, adapterInfo, device) => {
      return test_canvas_disallows_transfer_back_after_draw(
                 device,
                 document.getElementById('c'));
    });
  },
  'transferBackFromGPUTexture() should disallow transferring back after a draw.'
);

promise_test(() => {
    return with_webgpu((adapter, adapterInfo, device) => {
      return test_canvas_disallows_transfer_back_after_draw(
                 device,
                 new OffscreenCanvas(50, 50));
    });
  },
  'transferBackFromGPUTexture() on an offscreen canvas should disallow ' +
  'transferring back after a draw.'
);

</script>

chromium/third_party/blink/web_tests/wpt_internal/webgpu/canvas_webgpu_transfer/transferBackFromGPUTexture-disallows-transfer-back-after-draw.https.html