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build/m.d.ts

@@ -0,0 +1,71 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+*/
+export class Model {
+  free(): void;
+/**
+* @param {Uint8Array} weights
+* @param {Uint8Array} tokenizer
+* @param {boolean} quantized
+*/
+  constructor(weights: Uint8Array, tokenizer: Uint8Array, quantized: boolean);
+/**
+* @param {Uint8Array} image
+*/
+  set_image_embeddings(image: Uint8Array): void;
+/**
+* @param {string} prompt
+* @param {bigint} seed
+* @param {number} temp
+* @param {number} top_p
+* @param {number} repeat_penalty
+* @param {number} repeat_last_n
+* @param {boolean} verbose_prompt
+* @returns {string}
+*/
+  init_with_image_prompt(prompt: string, seed: bigint, temp: number, top_p: number, repeat_penalty: number, repeat_last_n: number, verbose_prompt: boolean): string;
+/**
+* @returns {string}
+*/
+  next_token(): string;
+}
+
+export type InitInput = RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
+
+export interface InitOutput {
+  readonly memory: WebAssembly.Memory;
+  readonly __wbg_model_free: (a: number) => void;
+  readonly model_load: (a: number, b: number, c: number, d: number, e: number, f: number) => void;
+  readonly model_set_image_embeddings: (a: number, b: number, c: number, d: number) => void;
+  readonly model_init_with_image_prompt: (a: number, b: number, c: number, d: number, e: number, f: number, g: number, h: number, i: number, j: number) => void;
+  readonly model_next_token: (a: number, b: number) => void;
+  readonly main: (a: number, b: number) => number;
+  readonly __wbindgen_add_to_stack_pointer: (a: number) => number;
+  readonly __wbindgen_malloc: (a: number, b: number) => number;
+  readonly __wbindgen_realloc: (a: number, b: number, c: number, d: number) => number;
+  readonly __wbindgen_free: (a: number, b: number, c: number) => void;
+  readonly __wbindgen_exn_store: (a: number) => void;
+  readonly __wbindgen_start: () => void;
+}
+
+export type SyncInitInput = BufferSource | WebAssembly.Module;
+/**
+* Instantiates the given `module`, which can either be bytes or
+* a precompiled `WebAssembly.Module`.
+*
+* @param {SyncInitInput} module
+*
+* @returns {InitOutput}
+*/
+export function initSync(module: SyncInitInput): InitOutput;
+
+/**
+* If `module_or_path` is {RequestInfo} or {URL}, makes a request and
+* for everything else, calls `WebAssembly.instantiate` directly.
+*
+* @param {InitInput | Promise<InitInput>} module_or_path
+*
+* @returns {Promise<InitOutput>}
+*/
+export default function __wbg_init (module_or_path?: InitInput | Promise<InitInput>): Promise<InitOutput>;

build/m.js

@@ -0,0 +1,493 @@
+let wasm;
+
+const cachedTextDecoder = (typeof TextDecoder !== 'undefined' ? new TextDecoder('utf-8', { ignoreBOM: true, fatal: true }) : { decode: () => { throw Error('TextDecoder not available') } } );
+
+if (typeof TextDecoder !== 'undefined') { cachedTextDecoder.decode(); };
+
+let cachedUint8Memory0 = null;
+
+function getUint8Memory0() {
+    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {
+        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
+    }
+    return cachedUint8Memory0;
+}
+
+function getStringFromWasm0(ptr, len) {
+    ptr = ptr >>> 0;
+    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
+}
+
+const heap = new Array(128).fill(undefined);
+
+heap.push(undefined, null, true, false);
+
+let heap_next = heap.length;
+
+function addHeapObject(obj) {
+    if (heap_next === heap.length) heap.push(heap.length + 1);
+    const idx = heap_next;
+    heap_next = heap[idx];
+
+    heap[idx] = obj;
+    return idx;
+}
+
+function getObject(idx) { return heap[idx]; }
+
+function dropObject(idx) {
+    if (idx < 132) return;
+    heap[idx] = heap_next;
+    heap_next = idx;
+}
+
+function takeObject(idx) {
+    const ret = getObject(idx);
+    dropObject(idx);
+    return ret;
+}
+
+let WASM_VECTOR_LEN = 0;
+
+function passArray8ToWasm0(arg, malloc) {
+    const ptr = malloc(arg.length * 1, 1) >>> 0;
+    getUint8Memory0().set(arg, ptr / 1);
+    WASM_VECTOR_LEN = arg.length;
+    return ptr;
+}
+
+let cachedInt32Memory0 = null;
+
+function getInt32Memory0() {
+    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {
+        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);
+    }
+    return cachedInt32Memory0;
+}
+
+const cachedTextEncoder = (typeof TextEncoder !== 'undefined' ? new TextEncoder('utf-8') : { encode: () => { throw Error('TextEncoder not available') } } );
+
+const encodeString = (typeof cachedTextEncoder.encodeInto === 'function'
+    ? function (arg, view) {
+    return cachedTextEncoder.encodeInto(arg, view);
+}
+    : function (arg, view) {
+    const buf = cachedTextEncoder.encode(arg);
+    view.set(buf);
+    return {
+        read: arg.length,
+        written: buf.length
+    };
+});
+
+function passStringToWasm0(arg, malloc, realloc) {
+
+    if (realloc === undefined) {
+        const buf = cachedTextEncoder.encode(arg);
+        const ptr = malloc(buf.length, 1) >>> 0;
+        getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);
+        WASM_VECTOR_LEN = buf.length;
+        return ptr;
+    }
+
+    let len = arg.length;
+    let ptr = malloc(len, 1) >>> 0;
+
+    const mem = getUint8Memory0();
+
+    let offset = 0;
+
+    for (; offset < len; offset++) {
+        const code = arg.charCodeAt(offset);
+        if (code > 0x7F) break;
+        mem[ptr + offset] = code;
+    }
+
+    if (offset !== len) {
+        if (offset !== 0) {
+            arg = arg.slice(offset);
+        }
+        ptr = realloc(ptr, len, len = offset + arg.length * 3, 1) >>> 0;
+        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);
+        const ret = encodeString(arg, view);
+
+        offset += ret.written;
+        ptr = realloc(ptr, len, offset, 1) >>> 0;
+    }
+
+    WASM_VECTOR_LEN = offset;
+    return ptr;
+}
+
+function handleError(f, args) {
+    try {
+        return f.apply(this, args);
+    } catch (e) {
+        wasm.__wbindgen_exn_store(addHeapObject(e));
+    }
+}
+
+const ModelFinalization = (typeof FinalizationRegistry === 'undefined')
+    ? { register: () => {}, unregister: () => {} }
+    : new FinalizationRegistry(ptr => wasm.__wbg_model_free(ptr >>> 0));
+/**
+*/
+export class Model {
+
+    __destroy_into_raw() {
+        const ptr = this.__wbg_ptr;
+        this.__wbg_ptr = 0;
+        ModelFinalization.unregister(this);
+        return ptr;
+    }
+
+    free() {
+        const ptr = this.__destroy_into_raw();
+        wasm.__wbg_model_free(ptr);
+    }
+    /**
+    * @param {Uint8Array} weights
+    * @param {Uint8Array} tokenizer
+    * @param {boolean} quantized
+    */
+    constructor(weights, tokenizer, quantized) {
+        try {
+            const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
+            const ptr0 = passArray8ToWasm0(weights, wasm.__wbindgen_malloc);
+            const len0 = WASM_VECTOR_LEN;
+            const ptr1 = passArray8ToWasm0(tokenizer, wasm.__wbindgen_malloc);
+            const len1 = WASM_VECTOR_LEN;
+            wasm.model_load(retptr, ptr0, len0, ptr1, len1, quantized);
+            var r0 = getInt32Memory0()[retptr / 4 + 0];
+            var r1 = getInt32Memory0()[retptr / 4 + 1];
+            var r2 = getInt32Memory0()[retptr / 4 + 2];
+            if (r2) {
+                throw takeObject(r1);
+            }
+            this.__wbg_ptr = r0 >>> 0;
+            return this;
+        } finally {
+            wasm.__wbindgen_add_to_stack_pointer(16);
+        }
+    }
+    /**
+    * @param {Uint8Array} image
+    */
+    set_image_embeddings(image) {
+        try {
+            const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
+            const ptr0 = passArray8ToWasm0(image, wasm.__wbindgen_malloc);
+            const len0 = WASM_VECTOR_LEN;
+            wasm.model_set_image_embeddings(retptr, this.__wbg_ptr, ptr0, len0);
+            var r0 = getInt32Memory0()[retptr / 4 + 0];
+            var r1 = getInt32Memory0()[retptr / 4 + 1];
+            if (r1) {
+                throw takeObject(r0);
+            }
+        } finally {
+            wasm.__wbindgen_add_to_stack_pointer(16);
+        }
+    }
+    /**
+    * @param {string} prompt
+    * @param {bigint} seed
+    * @param {number} temp
+    * @param {number} top_p
+    * @param {number} repeat_penalty
+    * @param {number} repeat_last_n
+    * @param {boolean} verbose_prompt
+    * @returns {string}
+    */
+    init_with_image_prompt(prompt, seed, temp, top_p, repeat_penalty, repeat_last_n, verbose_prompt) {
+        let deferred3_0;
+        let deferred3_1;
+        try {
+            const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
+            const ptr0 = passStringToWasm0(prompt, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+            const len0 = WASM_VECTOR_LEN;
+            wasm.model_init_with_image_prompt(retptr, this.__wbg_ptr, ptr0, len0, seed, temp, top_p, repeat_penalty, repeat_last_n, verbose_prompt);
+            var r0 = getInt32Memory0()[retptr / 4 + 0];
+            var r1 = getInt32Memory0()[retptr / 4 + 1];
+            var r2 = getInt32Memory0()[retptr / 4 + 2];
+            var r3 = getInt32Memory0()[retptr / 4 + 3];
+            var ptr2 = r0;
+            var len2 = r1;
+            if (r3) {
+                ptr2 = 0; len2 = 0;
+                throw takeObject(r2);
+            }
+            deferred3_0 = ptr2;
+            deferred3_1 = len2;
+            return getStringFromWasm0(ptr2, len2);
+        } finally {
+            wasm.__wbindgen_add_to_stack_pointer(16);
+            wasm.__wbindgen_free(deferred3_0, deferred3_1, 1);
+        }
+    }
+    /**
+    * @returns {string}
+    */
+    next_token() {
+        let deferred2_0;
+        let deferred2_1;
+        try {
+            const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
+            wasm.model_next_token(retptr, this.__wbg_ptr);
+            var r0 = getInt32Memory0()[retptr / 4 + 0];
+            var r1 = getInt32Memory0()[retptr / 4 + 1];
+            var r2 = getInt32Memory0()[retptr / 4 + 2];
+            var r3 = getInt32Memory0()[retptr / 4 + 3];
+            var ptr1 = r0;
+            var len1 = r1;
+            if (r3) {
+                ptr1 = 0; len1 = 0;
+                throw takeObject(r2);
+            }
+            deferred2_0 = ptr1;
+            deferred2_1 = len1;
+            return getStringFromWasm0(ptr1, len1);
+        } finally {
+            wasm.__wbindgen_add_to_stack_pointer(16);
+            wasm.__wbindgen_free(deferred2_0, deferred2_1, 1);
+        }
+    }
+}
+
+async function __wbg_load(module, imports) {
+    if (typeof Response === 'function' && module instanceof Response) {
+        if (typeof WebAssembly.instantiateStreaming === 'function') {
+            try {
+                return await WebAssembly.instantiateStreaming(module, imports);
+
+            } catch (e) {
+                if (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 __wbg_get_imports() {
+    const imports = {};
+    imports.wbg = {};
+    imports.wbg.__wbindgen_error_new = function(arg0, arg1) {
+        const ret = new Error(getStringFromWasm0(arg0, arg1));
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbindgen_object_drop_ref = function(arg0) {
+        takeObject(arg0);
+    };
+    imports.wbg.__wbg_new_abda76e883ba8a5f = function() {
+        const ret = new Error();
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_stack_658279fe44541cf6 = function(arg0, arg1) {
+        const ret = getObject(arg1).stack;
+        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+        const len1 = WASM_VECTOR_LEN;
+        getInt32Memory0()[arg0 / 4 + 1] = len1;
+        getInt32Memory0()[arg0 / 4 + 0] = ptr1;
+    };
+    imports.wbg.__wbg_error_f851667af71bcfc6 = function(arg0, arg1) {
+        let deferred0_0;
+        let deferred0_1;
+        try {
+            deferred0_0 = arg0;
+            deferred0_1 = arg1;
+            console.error(getStringFromWasm0(arg0, arg1));
+        } finally {
+            wasm.__wbindgen_free(deferred0_0, deferred0_1, 1);
+        }
+    };
+    imports.wbg.__wbg_log_7046c2cfad7a244f = function(arg0, arg1) {
+        console.log(getStringFromWasm0(arg0, arg1));
+    };
+    imports.wbg.__wbg_crypto_c48a774b022d20ac = function(arg0) {
+        const ret = getObject(arg0).crypto;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbindgen_is_object = function(arg0) {
+        const val = getObject(arg0);
+        const ret = typeof(val) === 'object' && val !== null;
+        return ret;
+    };
+    imports.wbg.__wbg_process_298734cf255a885d = function(arg0) {
+        const ret = getObject(arg0).process;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_versions_e2e78e134e3e5d01 = function(arg0) {
+        const ret = getObject(arg0).versions;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_node_1cd7a5d853dbea79 = function(arg0) {
+        const ret = getObject(arg0).node;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbindgen_is_string = function(arg0) {
+        const ret = typeof(getObject(arg0)) === 'string';
+        return ret;
+    };
+    imports.wbg.__wbg_msCrypto_bcb970640f50a1e8 = function(arg0) {
+        const ret = getObject(arg0).msCrypto;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_require_8f08ceecec0f4fee = function() { return handleError(function () {
+        const ret = module.require;
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbindgen_is_function = function(arg0) {
+        const ret = typeof(getObject(arg0)) === 'function';
+        return ret;
+    };
+    imports.wbg.__wbindgen_string_new = function(arg0, arg1) {
+        const ret = getStringFromWasm0(arg0, arg1);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_getRandomValues_37fa2ca9e4e07fab = function() { return handleError(function (arg0, arg1) {
+        getObject(arg0).getRandomValues(getObject(arg1));
+    }, arguments) };
+    imports.wbg.__wbg_randomFillSync_dc1e9a60c158336d = function() { return handleError(function (arg0, arg1) {
+        getObject(arg0).randomFillSync(takeObject(arg1));
+    }, arguments) };
+    imports.wbg.__wbg_newnoargs_581967eacc0e2604 = function(arg0, arg1) {
+        const ret = new Function(getStringFromWasm0(arg0, arg1));
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_call_cb65541d95d71282 = function() { return handleError(function (arg0, arg1) {
+        const ret = getObject(arg0).call(getObject(arg1));
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbindgen_object_clone_ref = function(arg0) {
+        const ret = getObject(arg0);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_self_1ff1d729e9aae938 = function() { return handleError(function () {
+        const ret = self.self;
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbg_window_5f4faef6c12b79ec = function() { return handleError(function () {
+        const ret = window.window;
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbg_globalThis_1d39714405582d3c = function() { return handleError(function () {
+        const ret = globalThis.globalThis;
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbg_global_651f05c6a0944d1c = function() { return handleError(function () {
+        const ret = global.global;
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbindgen_is_undefined = function(arg0) {
+        const ret = getObject(arg0) === undefined;
+        return ret;
+    };
+    imports.wbg.__wbg_call_01734de55d61e11d = function() { return handleError(function (arg0, arg1, arg2) {
+        const ret = getObject(arg0).call(getObject(arg1), getObject(arg2));
+        return addHeapObject(ret);
+    }, arguments) };
+    imports.wbg.__wbg_now_9c5990bda04c7e53 = function() {
+        const ret = Date.now();
+        return ret;
+    };
+    imports.wbg.__wbg_buffer_085ec1f694018c4f = function(arg0) {
+        const ret = getObject(arg0).buffer;
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_newwithbyteoffsetandlength_6da8e527659b86aa = function(arg0, arg1, arg2) {
+        const ret = new Uint8Array(getObject(arg0), arg1 >>> 0, arg2 >>> 0);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_new_8125e318e6245eed = function(arg0) {
+        const ret = new Uint8Array(getObject(arg0));
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_set_5cf90238115182c3 = function(arg0, arg1, arg2) {
+        getObject(arg0).set(getObject(arg1), arg2 >>> 0);
+    };
+    imports.wbg.__wbg_newwithlength_e5d69174d6984cd7 = function(arg0) {
+        const ret = new Uint8Array(arg0 >>> 0);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbg_subarray_13db269f57aa838d = function(arg0, arg1, arg2) {
+        const ret = getObject(arg0).subarray(arg1 >>> 0, arg2 >>> 0);
+        return addHeapObject(ret);
+    };
+    imports.wbg.__wbindgen_throw = function(arg0, arg1) {
+        throw new Error(getStringFromWasm0(arg0, arg1));
+    };
+    imports.wbg.__wbindgen_memory = function() {
+        const ret = wasm.memory;
+        return addHeapObject(ret);
+    };
+
+    return imports;
+}
+
+function __wbg_init_memory(imports, maybe_memory) {
+
+}
+
+function __wbg_finalize_init(instance, module) {
+    wasm = instance.exports;
+    __wbg_init.__wbindgen_wasm_module = module;
+    cachedInt32Memory0 = null;
+    cachedUint8Memory0 = null;
+
+    wasm.__wbindgen_start();
+    return wasm;
+}
+
+function initSync(module) {
+    if (wasm !== undefined) return wasm;
+
+    const imports = __wbg_get_imports();
+
+    __wbg_init_memory(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(input) {
+    if (wasm !== undefined) return wasm;
+
+    if (typeof input === 'undefined') {
+        input = new URL('m_bg.wasm', import.meta.url);
+    }
+    const imports = __wbg_get_imports();
+
+    if (typeof input === 'string' || (typeof Request === 'function' && input instanceof Request) || (typeof URL === 'function' && input instanceof URL)) {
+        input = fetch(input);
+    }
+
+    __wbg_init_memory(imports);
+
+    const { instance, module } = await __wbg_load(await input, imports);
+
+    return __wbg_finalize_init(instance, module);
+}
+
+export { initSync }
+export default __wbg_init;

build/m_bg.wasm

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cc90fd24ffcce78fb09eb775c93e3a6b6147ecf5410f4612be62ddd0d9d78f7a
+size 5352500

build/m_bg.wasm.d.ts

@@ -0,0 +1,15 @@
+/* tslint:disable */
+/* eslint-disable */
+export const memory: WebAssembly.Memory;
+export function __wbg_model_free(a: number): void;
+export function model_load(a: number, b: number, c: number, d: number, e: number, f: number): void;
+export function model_set_image_embeddings(a: number, b: number, c: number, d: number): void;
+export function model_init_with_image_prompt(a: number, b: number, c: number, d: number, e: number, f: number, g: number, h: number, i: number, j: number): void;
+export function model_next_token(a: number, b: number): void;
+export function main(a: number, b: number): number;
+export function __wbindgen_add_to_stack_pointer(a: number): number;
+export function __wbindgen_malloc(a: number, b: number): number;
+export function __wbindgen_realloc(a: number, b: number, c: number, d: number): number;
+export function __wbindgen_free(a: number, b: number, c: number): void;
+export function __wbindgen_exn_store(a: number): void;
+export function __wbindgen_start(): void;

code.js

@@ -0,0 +1,258 @@
+import snarkdown from "https://cdn.skypack.dev/snarkdown";
+import hljs from "https://cdn.skypack.dev/highlight.js";
+// models base url
+const MODELS = {
+  moondream2_q4k: {
+    base_url:
+      "https://huggingface.co/santiagomed/candle-moondream/resolve/main/",
+    model: "model-q4_0.gguf",
+    tokenizer: "tokenizer.json",
+    quantized: true,
+    size: "1.51 GB",
+  },
+};
+
+const moodreamWorker = new Worker("./moondreamWorker.js", {
+  type: "module",
+});
+
+async function generateSequence(controller) {
+  const getValue = (id) => document.querySelector(`#${id}`).value;
+  const modelID = getValue("model");
+  const model = MODELS[modelID];
+  const weightsURL =
+    model.model instanceof Array
+      ? model.model.map((m) => model.base_url + m)
+      : model.base_url + model.model;
+  const tokenizerURL = model.base_url + model.tokenizer;
+
+  const prompt = getValue("prompt").trim();
+  const temperature = getValue("temperature");
+  const topP = getValue("top-p");
+  const repeatPenalty = getValue("repeat_penalty");
+  const seed = getValue("seed");
+  const maxSeqLen = getValue("max-seq");
+
+  function updateStatus(data) {
+    const outStatus = document.querySelector("#output-status");
+    const outGen = document.querySelector("#output-generation");
+    const outCounter = document.querySelector("#output-counter");
+
+    switch (data.status) {
+      case "loading":
+        outStatus.hidden = false;
+        outStatus.textContent = data.message;
+        outGen.hidden = true;
+        outCounter.hidden = true;
+        break;
+      case "generating":
+        const { message, prompt, sentence, tokensSec, totalTime } = data;
+        outStatus.hidden = true;
+        outCounter.hidden = false;
+        outGen.hidden = false;
+        outGen.innerHTML = snarkdown(prompt + sentence);
+        outCounter.innerHTML = `${(totalTime / 1000).toFixed(
+          2
+        )}s (${tokensSec.toFixed(2)} tok/s)`;
+        hljs.highlightAll();
+        break;
+      case "complete":
+        outStatus.hidden = true;
+        outGen.hidden = false;
+        break;
+    }
+  }
+
+  return new Promise((resolve, reject) => {
+    moodreamWorker.postMessage({
+      weightsURL,
+      modelID,
+      tokenizerURL,
+      quantized: model.quantized,
+      imageURL: currentImageURL,
+      prompt,
+      temp: temperature,
+      top_p: topP,
+      repeatPenalty,
+      seed: seed,
+      maxSeqLen,
+      verbose_prompt: false,
+      command: "start",
+    });
+
+    const handleAbort = () => {
+      moodreamWorker.postMessage({ command: "abort" });
+    };
+    const handleMessage = (event) => {
+      const { status, error, message, prompt, sentence } = event.data;
+      if (status) updateStatus(event.data);
+      if (error) {
+        moodreamWorker.removeEventListener("message", handleMessage);
+        reject(new Error(error));
+      }
+      if (status === "aborted") {
+        moodreamWorker.removeEventListener("message", handleMessage);
+        resolve(event.data);
+      }
+      if (status === "complete") {
+        moodreamWorker.removeEventListener("message", handleMessage);
+        resolve(event.data);
+      }
+    };
+
+    controller.signal.addEventListener("abort", handleAbort);
+    moodreamWorker.addEventListener("message", handleMessage);
+  });
+}
+
+const form = document.querySelector("#form");
+const prompt = document.querySelector("#prompt");
+const runBtn = document.querySelector("#run");
+const modelSelect = document.querySelector("#model");
+const dropArea = document.querySelector("#drop-area");
+const canvas = document.querySelector("#canvas");
+const ctxCanvas = canvas.getContext("2d");
+const fileUpload = document.querySelector("#file-upload");
+const clearImgBtn = document.querySelector("#clear-img-btn");
+const imagesExamples = document.querySelector("#image-select");
+
+let currentImageURL = null;
+let runController = new AbortController();
+let isRunning = false;
+
+document.addEventListener("DOMContentLoaded", () => {
+  for (const [id, model] of Object.entries(MODELS)) {
+    const option = document.createElement("option");
+    option.value = id;
+    option.innerText = `${id} (${model.size})`;
+    modelSelect.appendChild(option);
+  }
+  const query = new URLSearchParams(window.location.search);
+  const modelID = query.get("model");
+  if (modelID) {
+    modelSelect.value = modelID;
+  } else {
+    modelSelect.value = "moondream2_q4k";
+  }
+});
+
+imagesExamples.addEventListener("click", (e) => {
+  // if (isEmbedding || isSegmenting) {
+  //   return;
+  // }
+  const target = e.target;
+  if (target.nodeName === "IMG") {
+    const href = target.src;
+    clearImageCanvas();
+    currentImageURL = href;
+    drawImageCanvas(href);
+  }
+});
+modelSelect.addEventListener("change", (e) => {
+  const query = new URLSearchParams(window.location.search);
+  query.set("model", e.target.value);
+  window.history.replaceState({}, "", `${window.location.pathname}?${query}`);
+  window.parent.postMessage({ queryString: "?" + query }, "*");
+  const model = MODELS[e.target.value];
+  document.querySelector("#max-seq").max = model.seq_len;
+  document.querySelector("#max-seq").nextElementSibling.value = 200;
+});
+
+clearImgBtn.addEventListener("click", () => {
+  clearImageCanvas();
+});
+
+//add event listener to file input
+fileUpload.addEventListener("input", async (e) => {
+  const target = e.target;
+  if (target.files.length > 0 && !target.files[0].type.includes("svg")) {
+    const href = URL.createObjectURL(target.files[0]);
+    clearImageCanvas();
+    await drawImageCanvas(href);
+  }
+});
+// add event listener to drop-area
+dropArea.addEventListener("dragenter", (e) => {
+  e.preventDefault();
+  dropArea.classList.add("border-blue-700");
+});
+dropArea.addEventListener("dragleave", (e) => {
+  e.preventDefault();
+  dropArea.classList.remove("border-blue-700");
+});
+dropArea.addEventListener("dragover", (e) => {
+  e.preventDefault();
+});
+dropArea.addEventListener("drop", async (e) => {
+  e.preventDefault();
+  dropArea.classList.remove("border-blue-700");
+  const url = e.dataTransfer.getData("text/uri-list");
+  const files = e.dataTransfer.files;
+  if (files.length > 0) {
+    const href = URL.createObjectURL(files[0]);
+    clearImageCanvas();
+    await drawImageCanvas(href);
+  } else if (url) {
+    clearImageCanvas();
+    await drawImageCanvas(url);
+  }
+});
+
+form.addEventListener("submit", async (e) => {
+  e.preventDefault();
+  if (isRunning) {
+    stopRunning();
+  } else {
+    startRunning();
+    await generateSequence(runController);
+    stopRunning();
+  }
+});
+
+async function drawImageCanvas(imgURL) {
+  if (!imgURL) {
+    throw new Error("No image URL provided");
+  }
+  return new Promise((resolve, reject) => {
+    ctxCanvas.clearRect(0, 0, canvas.width, canvas.height);
+    ctxCanvas.clearRect(0, 0, canvas.width, canvas.height);
+    const img = new Image();
+    img.crossOrigin = "anonymous";
+    img.onload = () => {
+      canvas.width = img.width;
+      canvas.height = img.height;
+      ctxCanvas.drawImage(img, 0, 0);
+      clearImgBtn.disabled = false;
+      resolve(img);
+    };
+    img.src = imgURL;
+    currentImageURL = imgURL;
+  });
+}
+
+function clearImageCanvas() {
+  ctxCanvas.clearRect(0, 0, canvas.width, canvas.height);
+  clearImgBtn.disabled = true;
+  canvas.parentElement.style.height = "auto";
+  currentImageURL = null;
+  canvas.width = 0;
+  canvas.height = 0;
+}
+
+function startRunning() {
+  isRunning = true;
+  runBtn.textContent = "Stop";
+  prompt.disabled = true;
+}
+
+function stopRunning() {
+  runController.abort();
+  runController = new AbortController();
+  runBtn.textContent = "Run";
+  isRunning = false;
+  prompt.disabled = false;
+}
+
+prompt.addEventListener("input", (e) => {
+  runBtn.disabled = false;
+});

index.html

@@ -1,19 +1,304 @@
-<!doctype html>
 <html>
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width" />
-		<title>My static Space</title>
-		<link rel="stylesheet" href="style.css" />
-	</head>
-	<body>
-		<div class="card">
-			<h1>Welcome to your static Space!</h1>
-			<p>You can modify this app directly by editing <i>index.html</i> in the Files and versions tab.</p>
-			<p>
-				Also don't forget to check the
-				<a href="https://huggingface.co/docs/hub/spaces" target="_blank">Spaces documentation</a>.
-			</p>
-		</div>
-	</body>
+  <head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type" />
+    <title>Candle Moondream Rust/WASM</title>
+  </head>
+  <body></body>
+</html>
+
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link
+      rel="stylesheet"
+      href="https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.8.0/build/styles/default.min.css"
+    />
+    <style>
+      @import url("https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@200;300;400&family=Source+Sans+3:wght@100;200;300;400;500;600;700;800;900&display=swap");
+      html,
+      body {
+        font-family: "Source Sans 3", sans-serif;
+      }
+      code,
+      output,
+      select,
+      pre {
+        font-family: "Source Code Pro", monospace;
+      }
+    </style>
+    <style type="text/tailwindcss">
+      .link {
+        @apply underline hover:text-blue-500 hover:no-underline;
+      }
+    </style>
+    <script src="https://cdn.tailwindcss.com/3.4.3"></script>
+    <script type="module" src="./code.js"></script>
+  </head>
+  <body class="container max-w-4xl mx-auto p-4 text-gray-800">
+    <main class="grid grid-cols-1 gap-8 relative">
+      <span class="absolute text-5xl -ml-[1em]"> 🕯️ </span>
+      <div>
+        <h1 class="text-5xl font-bold">Candle Moondream 2</h1>
+        <h2 class="text-2xl font-bold">Rust/WASM Demo</h2>
+        <p class="max-w-lg">
+          <a
+            href="https://huggingface.co/vikhyatk/moondream2"
+            class="link"
+            target="_blank"
+            >Moondream 2</a
+          >
+          by
+          <a href=" https://huggingface.co/vikhyatk" class="link">Vik</a>
+          and model implementation on Candle by
+          <a href="https://huggingface.co/santiagomed" class="link"
+            >Santiago Medina
+          </a>
+        </p>
+      </div>
+
+      <div>
+        <p class="text-xs italic max-w-lg">
+          <b>Note:</b>
+          When first run, the app will download and cache the model, which could
+          take a few minutes. Then, the embeddings and generation will take a
+          few minutes to start 😔.
+        </p>
+      </div>
+      <div>
+        <label for="model" class="font-medium">Models Options: </label>
+        <select
+          id="model"
+          class="border-2 border-gray-500 rounded-md font-light"
+        ></select>
+      </div>
+      <form
+        id="form"
+        class="flex text-normal px-1 py-1 border border-gray-700 rounded-md items-center"
+      >
+        <input type="submit" hidden />
+        <input
+          type="text"
+          id="prompt"
+          class="font-light text-lg w-full px-3 py-2 mx-1 resize-none outline-none"
+          placeholder="Add your prompt here..."
+        />
+        <button
+          id="run"
+          class="bg-gray-700 hover:bg-gray-800 text-white font-normal py-2 w-16 rounded disabled:bg-gray-300 disabled:cursor-not-allowed"
+        >
+          Run
+        </button>
+      </form>
+
+      <details>
+        <summary class="font-medium cursor-pointer">Advanced Options</summary>
+
+        <div class="grid grid-cols-3 max-w-md items-center gap-3 py-3">
+          <label class="text-sm font-medium" for="max-seq"
+            >Maximum length
+          </label>
+          <input
+            type="range"
+            id="max-seq"
+            name="max-seq"
+            min="1"
+            max="2048"
+            step="1"
+            value="200"
+            oninput="this.nextElementSibling.value = Number(this.value)"
+          />
+          <output
+            class="text-xs w-[50px] text-center font-light px-1 py-1 border border-gray-700 rounded-md"
+          >
+            200</output
+          >
+          <label class="text-sm font-medium" for="temperature"
+            >Temperature</label
+          >
+          <input
+            type="range"
+            id="temperature"
+            name="temperature"
+            min="0"
+            max="2"
+            step="0.01"
+            value="0.00"
+            oninput="this.nextElementSibling.value = Number(this.value).toFixed(2)"
+          />
+          <output
+            class="text-xs w-[50px] text-center font-light px-1 py-1 border border-gray-700 rounded-md"
+          >
+            0.00</output
+          >
+          <label class="text-sm font-medium" for="top-p">Top-p</label>
+          <input
+            type="range"
+            id="top-p"
+            name="top-p"
+            min="0"
+            max="1"
+            step="0.01"
+            value="1.00"
+            oninput="this.nextElementSibling.value = Number(this.value).toFixed(2)"
+          />
+          <output
+            class="text-xs w-[50px] text-center font-light px-1 py-1 border border-gray-700 rounded-md"
+          >
+            1.00</output
+          >
+
+          <label class="text-sm font-medium" for="repeat_penalty"
+            >Repeat Penalty</label
+          >
+
+          <input
+            type="range"
+            id="repeat_penalty"
+            name="repeat_penalty"
+            min="1"
+            max="2"
+            step="0.01"
+            value="1.10"
+            oninput="this.nextElementSibling.value = Number(this.value).toFixed(2)"
+          />
+          <output
+            class="text-xs w-[50px] text-center font-light px-1 py-1 border border-gray-700 rounded-md"
+            >1.10</output
+          >
+          <label class="text-sm font-medium" for="seed">Seed</label>
+          <input
+            type="number"
+            id="seed"
+            name="seed"
+            value="299792458"
+            class="font-light border border-gray-700 text-right rounded-md p-2"
+          />
+          <button
+            id="run"
+            onclick="document.querySelector('#seed').value = Math.floor(Math.random() * Number.MAX_SAFE_INTEGER)"
+            class="bg-gray-700 hover:bg-gray-800 text-white font-normal py-1 w-[50px] rounded disabled:bg-gray-300 disabled:cursor-not-allowed text-sm"
+          >
+            Rand
+          </button>
+        </div>
+      </details>
+
+      <div class="grid md:grid-cols-2 gap-4 items-start">
+        <div>
+          <div class="relative md:mt-6">
+            <div
+              class="absolute w-full bottom-full flex justify-between items-center"
+            >
+              <div class="flex gap-2 w-full">
+                <button
+                  id="clear-img-btn"
+                  disabled
+                  title="Clear Image"
+                  class="ml-auto text-xs py-1 bg-white rounded-md disabled:opacity-20 flex gap-1 items-center"
+                >
+                  <svg
+                    class=""
+                    xmlns="http://www.w3.org/2000/svg"
+                    viewBox="0 0 13 12"
+                    height="1em"
+                  >
+                    <path
+                      d="M1.6.7 12 11.1M12 .7 1.6 11.1"
+                      stroke="#2E3036"
+                      stroke-width="2"
+                    />
+                  </svg>
+                </button>
+              </div>
+            </div>
+            <div
+              id="drop-area"
+              class="min-h-[250px] flex flex-col items-center justify-center border-2 border-gray-300 border-dashed rounded-xl relative w-full overflow-hidden"
+            >
+              <div
+                class="absolute flex flex-col items-center justify-center space-y-1 text-center"
+              >
+                <svg
+                  width="25"
+                  height="25"
+                  viewBox="0 0 25 25"
+                  fill="none"
+                  xmlns="http://www.w3.org/2000/svg"
+                >
+                  <path
+                    d="M3.5 24.3a3 3 0 0 1-1.9-.8c-.5-.5-.8-1.2-.8-1.9V2.9c0-.7.3-1.3.8-1.9.6-.5 1.2-.7 2-.7h18.6c.7 0 1.3.2 1.9.7.5.6.7 1.2.7 2v18.6c0 .7-.2 1.4-.7 1.9a3 3 0 0 1-2 .8H3.6Zm0-2.7h18.7V2.9H3.5v18.7Zm2.7-2.7h13.3c.3 0 .5 0 .6-.3v-.7l-3.7-5a.6.6 0 0 0-.6-.2c-.2 0-.4 0-.5.3l-3.5 4.6-2.4-3.3a.6.6 0 0 0-.6-.3c-.2 0-.4.1-.5.3l-2.7 3.6c-.1.2-.2.4 0 .7.1.2.3.3.6.3Z"
+                    fill="#000"
+                  />
+                </svg>
+                <div class="flex text-sm text-gray-600">
+                  <label
+                    for="file-upload"
+                    class="relative cursor-pointer bg-white rounded-md font-medium text-blue-950 hover:text-blue-700"
+                  >
+                    <span>Drag and drop the image here</span>
+                    <span class="block text-xs">or</span>
+                    <span class="block text-xs">Click to upload</span>
+                  </label>
+                </div>
+                <input
+                  id="file-upload"
+                  name="file-upload"
+                  type="file"
+                  accept="image/*"
+                  class="sr-only"
+                />
+              </div>
+              <canvas
+                id="canvas"
+                class="z-10 pointer-events-none w-full"
+              ></canvas>
+            </div>
+          </div>
+        </div>
+        <div>
+          <h3 class="font-medium">Generation:</h3>
+          <div
+            class="min-h-[250px] bg-slate-100 text-gray-500 p-4 rounded-md flex flex-col gap-2"
+          >
+            <div
+              id="output-counter"
+              hidden
+              class="ml-auto font-semibold grid-rows-1"
+            ></div>
+            <p hidden id="output-generation" class="grid-rows-2 text-lg"></p>
+            <span id="output-status" class="m-auto font-light"
+              >No output yet</span
+            >
+          </div>
+        </div>
+      </div>
+      <div>
+        <div
+          class="flex gap-3 items-center overflow-x-scroll"
+          id="image-select"
+        >
+          <h3 class="font-medium">Examples:</h3>
+
+          <img
+            src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/sf.jpg"
+            class="cursor-pointer w-24 h-24 object-cover"
+          />
+          <img
+            src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/bike.jpeg"
+            class="cursor-pointer w-24 h-24 object-cover"
+          />
+          <img
+            src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/000000000077.jpg"
+            class="cursor-pointer w-24 h-24 object-cover"
+          />
+          <img
+            src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/candle/examples/demo-1.jpg"
+            class="cursor-pointer w-24 h-24 object-cover"
+          />
+        </div>
+      </div>
+    </main>
+  </body>
 </html>

moondreamWorker.js

@@ -0,0 +1,200 @@
+import init, { Model } from "./build/m.js";
+
+async function fetchArrayBuffer(url, cacheModel = true) {
+  if (!cacheModel)
+    return new Uint8Array(await (await fetch(url)).arrayBuffer());
+  const cacheName = "moondream-candle-cache";
+  const cache = await caches.open(cacheName);
+  const cachedResponse = await cache.match(url);
+  if (cachedResponse) {
+    const data = await cachedResponse.arrayBuffer();
+    return new Uint8Array(data);
+  }
+  const res = await fetch(url, { cache: "force-cache" });
+  cache.put(url, res.clone());
+  return new Uint8Array(await res.arrayBuffer());
+}
+
+async function concatenateArrayBuffers(urls) {
+  const arrayBuffers = await Promise.all(
+    urls.map((url) => fetchArrayBuffer(url))
+  );
+
+  let totalLength = arrayBuffers.reduce(
+    (acc, arrayBuffer) => acc + arrayBuffer.byteLength,
+    0
+  );
+  let concatenatedBuffer = new Uint8Array(totalLength);
+
+  let offset = 0;
+  arrayBuffers.forEach((buffer) => {
+    concatenatedBuffer.set(new Uint8Array(buffer), offset);
+    offset += buffer.byteLength;
+  });
+  return concatenatedBuffer;
+}
+
+class Moondream {
+  static imageArrayHash = {};
+  static instance = {};
+  static currentModelID = null;
+
+  static async getInstance(weightsURL, modelID, tokenizerURL, quantized) {
+    // load individual modelID only once
+    if (!this.instance[modelID]) {
+      await init();
+
+      self.postMessage({ status: "loading", message: "Loading Model" });
+      const [weightsArrayU8, tokenizerArrayU8] = await Promise.all([
+        weightsURL instanceof Array
+          ? concatenateArrayBuffers(weightsURL)
+          : fetchArrayBuffer(weightsURL),
+        fetchArrayBuffer(tokenizerURL),
+      ]);
+
+      this.instance[modelID] = new Model(
+        weightsArrayU8,
+        tokenizerArrayU8,
+        quantized
+      );
+    }
+    this.currentModelID = modelID;
+    return this.instance[modelID];
+  }
+
+  // Remove the modelID parameter from setImageEmbeddings
+  static setImageEmbeddings(imageArrayU8) {
+    // check if image embeddings are already set for this image and model
+    const imageArrayHash = this.getSimpleHash(imageArrayU8);
+    if (
+      this.imageArrayHash[this.currentModelID] === imageArrayHash &&
+      this.instance[this.currentModelID]
+    ) {
+      self.postMessage({
+        status: "embedding",
+        message: "Embeddings Already Set",
+      });
+      return;
+    }
+    this.imageArrayHash[this.currentModelID] = imageArrayHash;
+    this.instance[this.currentModelID].set_image_embeddings(imageArrayU8);
+    self.postMessage({ status: "embedding", message: "Embeddings Set" });
+  }
+
+  static getSimpleHash(imageArrayU8) {
+    // get simple hash of imageArrayU8
+    let imageArrayHash = 0;
+    for (let i = 0; i < imageArrayU8.length; i += 100) {
+      imageArrayHash ^= imageArrayU8[i];
+    }
+    return imageArrayHash.toString(16);
+  }
+}
+
+let controller = null;
+self.addEventListener("message", (event) => {
+  if (event.data.command === "start") {
+    controller = new AbortController();
+    generate(event.data);
+  } else if (event.data.command === "abort") {
+    controller.abort();
+  }
+});
+
+async function generate(data) {
+  const {
+    weightsURL,
+    modelID,
+    tokenizerURL,
+    quantized,
+    imageURL,
+    prompt,
+    seed,
+    temp,
+    top_p,
+    repeatPenalty,
+    maxSeqLen,
+    verbose_prompt,
+  } = data;
+  try {
+    self.postMessage({ status: "loading", message: "Starting Moondream" });
+    const model = await Moondream.getInstance(
+      weightsURL,
+      modelID,
+      tokenizerURL,
+      quantized
+    );
+
+    self.postMessage({ status: "loading", message: "Initializing model" });
+
+    self.postMessage({ status: "loading", message: "Loading Image" });
+    const imageArrayU8 = await fetchArrayBuffer(imageURL, false);
+
+    self.postMessage({ status: "embedding", message: "Creating Embeddings" });
+    Moondream.setImageEmbeddings(imageArrayU8);
+    self.postMessage({
+      status: "complete-embedding",
+      message: "Embeddings Complete",
+    });
+    const firstToken = model.init_with_image_prompt(
+      prompt,
+      BigInt(seed),
+      temp,
+      top_p,
+      repeatPenalty,
+      64, //repeat_last_n
+      verbose_prompt
+    );
+    const seq_len = 2048;
+
+    let sentence = firstToken;
+    let maxTokens = maxSeqLen ? maxSeqLen : seq_len - prompt.length - 1;
+    let startTime = performance.now();
+    let tokensCount = 0;
+    while (tokensCount < maxTokens) {
+      await new Promise(async (resolve) => {
+        if (controller && controller.signal.aborted) {
+          console.log("Aborted");
+          self.postMessage({
+            status: "aborted",
+            message: "Aborted",
+            output: prompt + sentence,
+          });
+          return;
+        }
+        const token = await model.next_token();
+        console.log("Token: ", token);
+        if (token === "<|endoftext|>") {
+          self.postMessage({
+            status: "complete",
+            message: "complete",
+            output: prompt + sentence,
+          });
+          return;
+        }
+        const tokensSec =
+          ((tokensCount + 1) / (performance.now() - startTime)) * 1000;
+
+        sentence += token;
+        self.postMessage({
+          status: "generating",
+          message: "Generating token",
+          token: token,
+          sentence: sentence,
+          totalTime: performance.now() - startTime,
+          tokensSec,
+          prompt: prompt,
+        });
+        setTimeout(resolve, 0);
+      });
+      tokensCount++;
+    }
+    self.postMessage({
+      status: "complete",
+      message: "complete",
+      output: prompt + sentence,
+    });
+  } catch (e) {
+    self.postMessage({ error: e });
+  }
+}