assets/backdrop/backdrop.js at 5501b1c657b2 · andymccall/oxygenhub

# 5501b1c657b2 oxygenhub / assets / backdrop / backdrop.js
26.2 KiB · JavaScript · last changed feat(web): every scene as dense as the sky: knots, fuller streams, 1.4x (refs #167) 23 days ago source blame history raw
/**
 * Start a backdrop on `canvas` with the page's `data`: the scene it names
 * (docs/backgrounds.md §2), the dashboard's sky by default. `still`
 * is the viewer's choice of a still backdrop; reduced motion asks for
 * one too. Without WebGL2 there is no backdrop, and nothing breaks.
 * @param {HTMLCanvasElement} canvas
 * @param {any} data
 * @param {boolean} still
 */
export function start(canvas, data, still) {
    const ret = wasm.start(canvas, data, still);
    if (ret[1]) {
        throw takeFromExternrefTable0(ret[0]);
    }
}
function __wbg_get_imports() {
    const import0 = {
        __proto__: null,
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            var len1 = WASM_VECTOR_LEN;
            getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
            getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
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            var ptr1 = isLikeNone(ret) ? 0 : passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
            var len1 = WASM_VECTOR_LEN;
            getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
            getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
        },
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            const ret = Reflect.get(arg0, arg1);
            return ret;
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            return isLikeNone(ret) ? 0 : addToExternrefTable0(ret);
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            return ret;
        },
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            table.set(offset + 1, null);
            table.set(offset + 2, true);
            table.set(offset + 3, false);
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    return {
        __proto__: null,
        "./backdrop_bg.js": import0,
    };
}

function wasm_bindgen_ef67fbc5f0a8b406___convert__closures_____invoke_______true_(arg0, arg1) {
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}

function wasm_bindgen_ef67fbc5f0a8b406___convert__closures_____invoke___web_sys_793942649ef82f98___features__gen_MouseEvent__MouseEvent______true_(arg0, arg1, arg2) {
    wasm.wasm_bindgen_ef67fbc5f0a8b406___convert__closures_____invoke___web_sys_793942649ef82f98___features__gen_MouseEvent__MouseEvent______true_(arg0, arg1, arg2);
}

function wasm_bindgen_ef67fbc5f0a8b406___convert__closures_____invoke___f64______true_(arg0, arg1, arg2) {
    wasm.wasm_bindgen_ef67fbc5f0a8b406___convert__closures_____invoke___f64______true_(arg0, arg1, arg2);
}

function addToExternrefTable0(obj) {
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const CLOSURE_DTORS = (typeof FinalizationRegistry === 'undefined')
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function getArrayF32FromWasm0(ptr, len) {
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    return getFloat32ArrayMemory0().subarray(ptr / 4, ptr / 4 + len);
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let cachedDataViewMemory0 = null;
function getDataViewMemory0() {
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}

let cachedFloat32ArrayMemory0 = null;
function getFloat32ArrayMemory0() {
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}

function getStringFromWasm0(ptr, len) {
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}

let cachedUint8ArrayMemory0 = null;
function getUint8ArrayMemory0() {
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}

function handleError(f, args) {
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    }
}

function isLikeNone(x) {
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}

function makeMutClosure(arg0, arg1, f) {
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    const real = (...args) => {

        // First up with a closure we increment the internal reference
        // count. This ensures that the Rust closure environment won't
        // be deallocated while we're invoking it.
        state.cnt++;
        const a = state.a;
        state.a = 0;
        try {
            return f(a, state.b, ...args);
        } finally {
            state.a = a;
            real._wbg_cb_unref();
        }
    };
    real._wbg_cb_unref = () => {
        if (--state.cnt === 0) {
            wasm.__wbindgen_destroy_closure(state.a, state.b);
            state.a = 0;
            CLOSURE_DTORS.unregister(state);
        }
    };
    CLOSURE_DTORS.register(real, state, state);
    return real;
}

function passStringToWasm0(arg, malloc, realloc) {
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        const buf = cachedTextEncoder.encode(arg);
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        WASM_VECTOR_LEN = buf.length;
        return ptr;
    }

    let len = arg.length;
    let ptr = malloc(len, 1) >>> 0;

    const mem = getUint8ArrayMemory0();

    let offset = 0;

    for (; offset < len; offset++) {
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    if (offset !== len) {
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        ptr = realloc(ptr, len, offset, 1) >>> 0;
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    WASM_VECTOR_LEN = offset;
    return ptr;
}

function takeFromExternrefTable0(idx) {
    const value = wasm.__wbindgen_externrefs.get(idx);
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    return value;
}

let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
cachedTextDecoder.decode();
const MAX_SAFARI_DECODE_BYTES = 2146435072;
let numBytesDecoded = 0;
function decodeText(ptr, len) {
    numBytesDecoded += len;
    if (numBytesDecoded >= MAX_SAFARI_DECODE_BYTES) {
        cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
        cachedTextDecoder.decode();
        numBytesDecoded = len;
    }
    return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
}

const cachedTextEncoder = new TextEncoder();

if (!('encodeInto' in cachedTextEncoder)) {
    cachedTextEncoder.encodeInto = function (arg, view) {
        const buf = cachedTextEncoder.encode(arg);
        view.set(buf);
        return {
            read: arg.length,
            written: buf.length
        };
    };
}

let WASM_VECTOR_LEN = 0;

let wasmModule, wasmInstance, wasm;
function __wbg_finalize_init(instance, module) {
    wasmInstance = instance;
    wasm = instance.exports;
    wasmModule = module;
    cachedDataViewMemory0 = null;
    cachedFloat32ArrayMemory0 = null;
    cachedUint8ArrayMemory0 = null;
    wasm.__wbindgen_start();
    return wasm;
}

async function __wbg_load(module, imports) {
    if (typeof Response === 'function' && module instanceof Response) {
        if (!module.ok) {
            throw new Error(`failed to fetch Wasm: ${module.status} ${module.statusText} fetching '${module.url}'`);
        }

        if (typeof WebAssembly.instantiateStreaming === 'function') {
            try {
                return await WebAssembly.instantiateStreaming(module, imports);
            } catch (e) {
                const validResponse = expectedResponseType(module.type);

                if (validResponse && module.headers.get('Content-Type') !== 'application/wasm') {
                    console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve Wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);

                } else { throw e; }
            }
        }

        const bytes = await module.arrayBuffer();
        return await WebAssembly.instantiate(bytes, imports);
    } else {
        const instance = await WebAssembly.instantiate(module, imports);

        if (instance instanceof WebAssembly.Instance) {
            return { instance, module };
        } else {
            return instance;
        }
    }

    function expectedResponseType(type) {
        switch (type) {
            case 'basic': case 'cors': case 'default': return true;
        }
        return false;
    }
}

function initSync(module) {
    if (wasm !== undefined) return wasm;


    if (module !== undefined) {
        if (Object.getPrototypeOf(module) === Object.prototype) {
            ({module} = module)
        } else {
            console.warn('using deprecated parameters for `initSync()`; pass a single object instead')
        }
    }

    const imports = __wbg_get_imports();
    if (!(module instanceof WebAssembly.Module)) {
        module = new WebAssembly.Module(module);
    }
    const instance = new WebAssembly.Instance(module, imports);
    return __wbg_finalize_init(instance, module);
}

async function __wbg_init(module_or_path) {
    if (wasm !== undefined) return wasm;


    if (module_or_path !== undefined) {
        if (Object.getPrototypeOf(module_or_path) === Object.prototype) {
            ({module_or_path} = module_or_path)
        } else {
            console.warn('using deprecated parameters for the initialization function; pass a single object instead')
        }
    }

    if (module_or_path === undefined) {
        module_or_path = new URL('backdrop_bg.wasm', import.meta.url);
    }
    const imports = __wbg_get_imports();

    if (typeof module_or_path === 'string' || (typeof Request === 'function' && module_or_path instanceof Request) || (typeof URL === 'function' && module_or_path instanceof URL)) {
        module_or_path = fetch(module_or_path);
    }

    const { instance, module } = await __wbg_load(await module_or_path, imports);

    return __wbg_finalize_init(instance, module);
}

export { initSync, __wbg_init as default };
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