test_shared_array_buffer.html

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<html>

  <head>

    <meta charset="utf-8" />

    <script src="/tests/SimpleTest/SimpleTest.js"></script>

    <link rel="stylesheet" href="/tests/SimpleTest/test.css" />

  </head>

  <body>

    <script>

ok(

        SpecialPowers.getBoolPref("dom.webgpu.enabled"),

        "Pref should be enabled."

);

      const set_bind_group_null = async function () {

        const adapter = await navigator.gpu.requestAdapter();

        ok(adapter !== undefined, "adapter !== undefined");

        const device = await adapter.requestDevice();

        ok(device !== undefined, "device !== undefined");

        const sharedData = new WebAssembly.Memory({

          initial: 1,

          maximum: 1,

          shared: true,

});

        const buffer = device.createBuffer({

          mappedAtCreation: true,

          size: 128,

          usage: GPUBufferUsage.COPY_DST,

});

        device.queue.writeBuffer(buffer, 0, sharedData.buffer, 0, 128);

        await device.queue.submit([]);

        ok(true, "Could use a `SharedArrayBuffer` to write to a buffer.");

        const texture = device.createTexture({

          mappedAtCreation: true,

          size: [128, 1],

          format: "r8uint",

          usage: GPUTextureUsage.COPY_DST,

});

        device.queue.writeTexture({ texture }, sharedData.buffer, {}, [128, 1]);

        await device.queue.submit([]);

        ok(true, "Could use a `SharedArrayBuffer` to write to a texture.");

};

      SimpleTest.waitForExplicitFinish();

      set_bind_group_null()

        .catch(e => ok(false, `Unhandled exception ${e}`))

        .finally(() => SimpleTest.finish());

    </script>

  </body>

</html>