wgpuEngine/shell.html at main · upf-gti/wgpuEngine · GitHub

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<!doctype html>
<html lang="en-us">

<head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>wgpuEngine (Web Build)</title>
    <script src="https://mrdoob.github.io/stats.js/build/stats.min.js"></script>
</head>

<body>
    <button id="xr-button" style="z-index:10;position:absolute;top:1%;left:30%" disabled>WebXR or WebGPU not supported</button>
    <canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1
            style="outline:none;position:absolute;"></canvas>
    <template id="main-script">
        {{{ SCRIPT }}}
    </template>
    <style>
        html, body, canvas {
            margin: 0 !important;
            padding: 0 !important;
        }
    </style>
    <script type='text/javascript'>

        var Module = {
            isHiDPIAware: true,
            html5ResizeTarget: "#canvas-area",
            preRun: [],
            postRun: [],
            canvas: (function () {
                var canvas = document.getElementById('canvas');

                canvas.width = window.innerWidth
                canvas.height = window.innerHeight

                function scaleCanvas() {
                    const devicePixelRatio = window.devicePixelRatio;
                    canvas.style.width = window.innerWidth + "px";
                    canvas.style.height = window.innerHeight + "px";
                    canvas.width = window.innerWidth * devicePixelRatio
                    canvas.height = window.innerHeight * devicePixelRatio
                }

                // Event handler to resize the canvas when the document view is changed
                window.addEventListener('resize', scaleCanvas, false);

                return canvas;
            })(),
            totalDependencies: 0
        };

        async function onEnginePreInitialized() {

            await Promise.resolve(Module.Engine.getInstance()).then(result => {

                if (!result) {
                    console.error("Module Instance is null");
                }

                window.engineInstance = result;

            }).catch(error => {
                console.log(error);
            });

            Promise.resolve(window.engineInstance.setWasmModuleInitialized(true)).then().catch(error => {
                console.log(error);
            });
        }

        function onEngineInitialized() {

        }

        (async () => {
            // Custom for WebGPU
            if (!navigator.gpu) {
                console.error("Sorry, WebGPU is not supported by your browser.");
                const msg = document.createElement("div");
                Object.assign(msg.style, {
                    width: "50%",
                    fontSize: "36px",
                    fontWeight: "500",
                    textAlign: "center",
                    margin: "0 auto",
                    marginTop: "25%"
                });
                msg.innerText = "Sorry, WebGPU is not supported by your browser.";
                document.body.appendChild(msg);
                return;
            } else {
                const jsTemplate = document.getElementById("main-script");
                const js = jsTemplate.content.cloneNode(true);
                document.body.appendChild(js);
            }
        })();
    </script>
</body>

</html>