lightningimg
Version:
A blazing fast, transparent, and safe image converter powered by WebAssembly. Convert PNG, JPG, TIFF, and GIF images to optimized WebP format with high performance and cross-platform compatibility.
403 lines (334 loc) • 13 kB
JavaScript
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 cachedUint8ArrayMemory0 = null;
function getUint8ArrayMemory0() {
if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
}
return cachedUint8ArrayMemory0;
}
function getStringFromWasm0(ptr, len) {
ptr = ptr >>> 0;
return cachedTextDecoder.decode(getUint8ArrayMemory0().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 handleError(f, args) {
try {
return f.apply(this, args);
} catch (e) {
wasm.__wbindgen_export_1(addHeapObject(e));
}
}
let WASM_VECTOR_LEN = 0;
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;
getUint8ArrayMemory0().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 = getUint8ArrayMemory0();
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 = getUint8ArrayMemory0().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;
}
let cachedDataViewMemory0 = null;
function getDataViewMemory0() {
if (cachedDataViewMemory0 === null || cachedDataViewMemory0.buffer.detached === true || (cachedDataViewMemory0.buffer.detached === undefined && cachedDataViewMemory0.buffer !== wasm.memory.buffer)) {
cachedDataViewMemory0 = new DataView(wasm.memory.buffer);
}
return cachedDataViewMemory0;
}
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;
}
export function init_panic_hook() {
wasm.init_panic_hook();
}
function passArray8ToWasm0(arg, malloc) {
const ptr = malloc(arg.length * 1, 1) >>> 0;
getUint8ArrayMemory0().set(arg, ptr / 1);
WASM_VECTOR_LEN = arg.length;
return ptr;
}
function isLikeNone(x) {
return x === undefined || x === null;
}
function getArrayU8FromWasm0(ptr, len) {
ptr = ptr >>> 0;
return getUint8ArrayMemory0().subarray(ptr / 1, ptr / 1 + len);
}
/**
* Converts an image buffer to WebP format.
* This is the core function that browsers and Node.js can use.
* @param {Uint8Array} input_buffer
* @param {number | undefined} [width]
* @param {number | undefined} [height]
* @returns {Uint8Array}
*/
export function convert_image_buffer(input_buffer, width, height) {
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passArray8ToWasm0(input_buffer, wasm.__wbindgen_export_2);
const len0 = WASM_VECTOR_LEN;
wasm.convert_image_buffer(retptr, ptr0, len0, isLikeNone(width) ? 0x100000001 : (width) >>> 0, isLikeNone(height) ? 0x100000001 : (height) >>> 0);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
var r2 = getDataViewMemory0().getInt32(retptr + 4 * 2, true);
var r3 = getDataViewMemory0().getInt32(retptr + 4 * 3, true);
if (r3) {
throw takeObject(r2);
}
var v2 = getArrayU8FromWasm0(r0, r1).slice();
wasm.__wbindgen_export_0(r0, r1 * 1, 1);
return v2;
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
}
}
/**
* Determines if an image format is supported based on the first few bytes.
* @param {Uint8Array} buffer
* @returns {boolean}
*/
export function is_supported_format(buffer) {
const ptr0 = passArray8ToWasm0(buffer, wasm.__wbindgen_export_2);
const len0 = WASM_VECTOR_LEN;
const ret = wasm.is_supported_format(ptr0, len0);
return ret !== 0;
}
/**
* Get image format information from buffer
* @param {Uint8Array} buffer
* @returns {any}
*/
export function get_image_info(buffer) {
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passArray8ToWasm0(buffer, wasm.__wbindgen_export_2);
const len0 = WASM_VECTOR_LEN;
wasm.get_image_info(retptr, ptr0, len0);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
var r2 = getDataViewMemory0().getInt32(retptr + 4 * 2, true);
if (r2) {
throw takeObject(r1);
}
return takeObject(r0);
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
}
}
/**
* Processes all images in a directory recursively, converting them to WebP format.
* This function is designed to work in Node.js environments where fs module is available.
* @param {string} _input_dir
* @param {string | undefined} [_output_dir]
*/
export function process_directory(_input_dir, _output_dir) {
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passStringToWasm0(_input_dir, wasm.__wbindgen_export_2, wasm.__wbindgen_export_3);
const len0 = WASM_VECTOR_LEN;
var ptr1 = isLikeNone(_output_dir) ? 0 : passStringToWasm0(_output_dir, wasm.__wbindgen_export_2, wasm.__wbindgen_export_3);
var len1 = WASM_VECTOR_LEN;
wasm.process_directory(retptr, ptr0, len0, ptr1, len1);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
if (r1) {
throw takeObject(r0);
}
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
}
}
/**
* Processes all images in a directory recursively, converting them to WebP format and optionally keeping original file names.
* @param {string} _input_dir
* @param {boolean | undefined} [_keep_original_names]
*/
export function process_directory_destructive(_input_dir, _keep_original_names) {
try {
const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
const ptr0 = passStringToWasm0(_input_dir, wasm.__wbindgen_export_2, wasm.__wbindgen_export_3);
const len0 = WASM_VECTOR_LEN;
wasm.process_directory_destructive(retptr, ptr0, len0, isLikeNone(_keep_original_names) ? 0xFFFFFF : _keep_original_names ? 1 : 0);
var r0 = getDataViewMemory0().getInt32(retptr + 4 * 0, true);
var r1 = getDataViewMemory0().getInt32(retptr + 4 * 1, true);
if (r1) {
throw takeObject(r0);
}
} finally {
wasm.__wbindgen_add_to_stack_pointer(16);
}
}
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.__wbg_error_7534b8e9a36f1ab4 = function(arg0, arg1) {
let deferred0_0;
let deferred0_1;
try {
deferred0_0 = arg0;
deferred0_1 = arg1;
console.error(getStringFromWasm0(arg0, arg1));
} finally {
wasm.__wbindgen_export_0(deferred0_0, deferred0_1, 1);
}
};
imports.wbg.__wbg_new_688846f374351c92 = function() {
const ret = new Object();
return addHeapObject(ret);
};
imports.wbg.__wbg_new_8a6f238a6ece86ea = function() {
const ret = new Error();
return addHeapObject(ret);
};
imports.wbg.__wbg_set_4e647025551483bd = function() { return handleError(function (arg0, arg1, arg2) {
const ret = Reflect.set(getObject(arg0), getObject(arg1), getObject(arg2));
return ret;
}, arguments) };
imports.wbg.__wbg_stack_0ed75d68575b0f3c = function(arg0, arg1) {
const ret = getObject(arg1).stack;
const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_export_2, wasm.__wbindgen_export_3);
const len1 = WASM_VECTOR_LEN;
getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
};
imports.wbg.__wbindgen_number_new = function(arg0) {
const ret = arg0;
return addHeapObject(ret);
};
imports.wbg.__wbindgen_object_drop_ref = function(arg0) {
takeObject(arg0);
};
imports.wbg.__wbindgen_string_new = function(arg0, arg1) {
const ret = getStringFromWasm0(arg0, arg1);
return addHeapObject(ret);
};
imports.wbg.__wbindgen_throw = function(arg0, arg1) {
throw new Error(getStringFromWasm0(arg0, arg1));
};
return imports;
}
function __wbg_init_memory(imports, memory) {
}
function __wbg_finalize_init(instance, module) {
wasm = instance.exports;
__wbg_init.__wbindgen_wasm_module = module;
cachedDataViewMemory0 = null;
cachedUint8ArrayMemory0 = null;
return wasm;
}
function initSync(module) {
if (wasm !== undefined) return wasm;
if (typeof 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();
__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(module_or_path) {
if (wasm !== undefined) return wasm;
if (typeof 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 (typeof module_or_path === 'undefined') {
module_or_path = new URL('lightningimg_wasm_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);
}
__wbg_init_memory(imports);
const { instance, module } = await __wbg_load(await module_or_path, imports);
return __wbg_finalize_init(instance, module);
}
export { initSync };
export default __wbg_init;