test_submit_render_empty.html

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<!doctype html>

<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 func = async function () {

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

        const device = await adapter.requestDevice();

        const swapChainFormat = "rgba8unorm";

        const bundleEncoder = device.createRenderBundleEncoder({

          colorFormats: [swapChainFormat],

});

        const bundle = bundleEncoder.finish({});

        const texture = device.createTexture({

          size: { width: 100, height: 100, depth: 1 },

          format: swapChainFormat,

          usage: GPUTextureUsage.RENDER_ATTACHMENT,

});

        const view = texture.createView();

        const encoder = device.createCommandEncoder();

        const pass = encoder.beginRenderPass({

          colorAttachments: [

              view,

              clearValue: { r: 0, g: 0, b: 0, a: 0 },

              loadOp: "clear",

              storeOp: "store",

},

],

});

        pass.executeBundles([bundle]);

        pass.end();

        const command_buffer = encoder.finish();

        device.queue.submit([command_buffer]);

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

};

      SimpleTest.waitForExplicitFinish();

      func()

        .catch(e => ok(false, "Unhandled exception " + e))

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

    </script>

  </body>

</html>