250 lines
8.2 KiB
JavaScript
250 lines
8.2 KiB
JavaScript
function ISOTerminal(instance,opts){
|
||
// create a neutral isoterminal object which can be decorated
|
||
// with prototype functions and has addListener() and dispatchEvent()
|
||
let obj = new EventTarget()
|
||
obj.instance = instance
|
||
obj.opts = opts
|
||
// register default event listeners (enable file based features like isoterminal/jsconsole.js e.g.)
|
||
for( let event in ISOTerminal.listener )
|
||
for( let cb in ISOTerminal.listener[event] )
|
||
obj.addEventListener( event, ISOTerminal.listener[event][cb] )
|
||
// compose object with functions
|
||
for( let i in ISOTerminal.prototype ) obj[i] = ISOTerminal.prototype[i]
|
||
obj.emit('init')
|
||
return obj
|
||
}
|
||
|
||
ISOTerminal.prototype.emit = function(event,data,sender){
|
||
data = data || false
|
||
const evObj = new CustomEvent(event, {detail: data} )
|
||
// forward event to worker/instance/AFRAME element or component-function
|
||
// this feels complex, but actually keeps event- and function-names more concise in codebase
|
||
this.dispatchEvent( evObj )
|
||
if( sender != "instance" && this.instance ) this.instance.dispatchEvent(evObj)
|
||
if( sender != "worker" && this.worker ) this.worker.postMessage({event,data})
|
||
if( sender !== undefined && typeof this[event] == 'function' ) this[event].apply(this, data && data.push ? data : [data] )
|
||
}
|
||
|
||
ISOTerminal.addEventListener = (event,cb) => {
|
||
ISOTerminal.listener = ISOTerminal.listener || {}
|
||
ISOTerminal.listener[event] = ISOTerminal.listener[event] || []
|
||
ISOTerminal.listener[event].push(cb)
|
||
}
|
||
|
||
ISOTerminal.prototype.exec = function(shellscript){
|
||
this.send(shellscript+"\n",1)
|
||
}
|
||
|
||
ISOTerminal.prototype.serial_input = 0; // can be set to 0,1,2,3 to define stdinput tty (xterm plugin)
|
||
|
||
ISOTerminal.prototype.send = function(str, ttyNr){
|
||
if( ttyNr == undefined) ttyNr = this.serial_input
|
||
if( ttyNr == undefined ){
|
||
if( this.emulator.serial_adapter ){
|
||
this.emulator.serial_adapter.term.paste(str)
|
||
}else this.emulator.keyboard_send_text(str) // vga screen
|
||
}else{
|
||
this.convert.toUint8Array( str ).map( (c) => {
|
||
this.worker.postMessage({event:`serial${ttyNr}-input`,data:c})
|
||
})
|
||
}
|
||
}
|
||
|
||
ISOTerminal.prototype.convert = {
|
||
|
||
arrayBufferToBase64: function(buffer){
|
||
let binary = '';
|
||
const bytes = new Uint8Array(buffer);
|
||
const len = bytes.byteLength;
|
||
for (let i = 0; i < len; i++) binary += String.fromCharCode(bytes[i]);
|
||
return window.btoa(binary);
|
||
},
|
||
|
||
base64ToArrayBuffer: function(base64) {
|
||
const binaryString = window.atob(base64);
|
||
const len = binaryString.length;
|
||
const bytes = new Uint8Array(len);
|
||
|
||
for (let i = 0; i < len; i++) {
|
||
bytes[i] = binaryString.charCodeAt(i);
|
||
}
|
||
return bytes.buffer;
|
||
},
|
||
|
||
toUint8Array: function(str) {
|
||
str = String(str) || String("")
|
||
// Create a new Uint8Array with the same length as the input string
|
||
const uint8Array = new Uint8Array(str.length);
|
||
|
||
// Iterate over the string and populate the Uint8Array
|
||
for (let i = 0; i < str.length; i++) {
|
||
uint8Array[i] = str.charCodeAt(i);
|
||
}
|
||
return uint8Array;
|
||
},
|
||
|
||
Uint8ArrayToString: function(arr){
|
||
const decoder = new TextDecoder('utf-8'); // Specify encoding
|
||
return decoder.decode(arr);
|
||
}
|
||
}
|
||
|
||
ISOTerminal.prototype.start = function(opts){
|
||
|
||
let me = this
|
||
this.opts = {...this.opts, ...opts}
|
||
let image = {}
|
||
if( opts.iso.match(/\.iso$/) ) image.cdrom = { url: opts.iso }
|
||
if( opts.iso.match(/\.bin$/) ) image.bzimage = { url: opts.iso }
|
||
|
||
opts = { ...image,
|
||
uart1:true, // /dev/ttyS1
|
||
uart2:true, // /dev/ttyS2
|
||
uart3:true, // /dev/ttyS3
|
||
wasm_path: "v86.wasm",
|
||
memory_size: opts.memory * 1024 * 1024,
|
||
vga_memory_size: 2 * 1024 * 1024,
|
||
//screen_container: opts.dom,
|
||
//serial_container: opts.dom,
|
||
bios: {
|
||
url: "bios/seabios.bin",
|
||
},
|
||
vga_bios: {
|
||
url: "bios/vgabios.bin",
|
||
//urg|: "com/isoterminal/bios/VGABIOS-lgpl-latest.bin",
|
||
},
|
||
network_relay_url: "wss://relay.widgetry.org/",
|
||
cmdline: "rw root=host9p rootfstype=9p rootflags=trans=virtio,cache=loose modules=virtio_pci tsc=reliable init_on_freg|=on vga=ask", //vga=0x122",
|
||
//bzimage_initrd_from_filesystem: true,
|
||
//filesystem: {
|
||
// baseurl: "com/isoterminal/v86/images/alpine-rootfs-flat",
|
||
// basefs: "com/isoterminal/v86/images/alpine-fs.json",
|
||
// },
|
||
//screen_dummy: true,
|
||
//disable_jit: false,
|
||
filesystem: {},
|
||
autostart: true,
|
||
};
|
||
|
||
/*
|
||
* the WebWorker (which runs v86)
|
||
*
|
||
*/
|
||
|
||
this.worker = new Worker("com/isoterminal/worker.js");
|
||
this.worker.onmessage = (e) => {
|
||
const xr = this.instance.sceneEl.renderer.xr
|
||
const {event,data} = e.data
|
||
const cb = (event,data) => () => {
|
||
if( data.promiseId ){
|
||
this.workerPromise.resolver(data) // forward to promise resolver
|
||
}else this.emit(event,data,"worker") // forward event to world
|
||
|
||
}
|
||
// don't let workers cause framerate dropping
|
||
if( xr.isPresenting ){
|
||
xr.getSession().requestAnimationFrame(cb(event,data))
|
||
}else{
|
||
window.requestAnimationFrame(cb(event,data))
|
||
}
|
||
}
|
||
|
||
/*
|
||
* postMessage.promise basically performs this.worker.postMessage
|
||
* in a promise way (to easily retrieve async output)
|
||
*/
|
||
|
||
this.worker.postMessage.promise = function(data){
|
||
if( typeof data != 'object' ) data = {data}
|
||
this.resolvers = this.resolvers || {}
|
||
this.id = this.id == undefined ? 0 : this.id
|
||
data.id = this.id++
|
||
// Send id and task to WebWorker
|
||
this.worker.postMessage(data)
|
||
return new Promise(resolve => this.resolvers[data.id] = resolve);
|
||
}.bind(this.worker.postMessage)
|
||
|
||
this.worker.postMessage.promise.resolver = function(data){
|
||
if( !data || !data.promiseId ) throw 'promiseId not given'
|
||
this.resolvers[ data.promiseId ](data);
|
||
delete this.resolvers[ data.promiseId ]; // Prevent memory leak
|
||
}.bind(this.worker.postMessage)
|
||
|
||
|
||
this.emit('runISO',{...opts, bufferLatency: this.opts.bufferLatency })
|
||
const loading = [
|
||
'loading quantum bits and bytes',
|
||
'preparing quantum flux capacitors',
|
||
'crunching peanuts and chakras',
|
||
'preparing parallel universe',
|
||
'loading quantum state fluctuations',
|
||
'preparing godmode',
|
||
'loading cat pawns and cuteness',
|
||
'beaming up scotty',
|
||
'still faster than Windows update',
|
||
'loading a microlinux',
|
||
'figuring out meaning of life',
|
||
'Aligning your chakras now',
|
||
'Breathing in good vibes',
|
||
'Finding inner peace soon',
|
||
'Centering your Zen energy',
|
||
'Awakening third eye powers',
|
||
'Tuning into the universe',
|
||
'Balancing your cosmic karma',
|
||
'Stretching time and space',
|
||
'Recharging your soul battery',
|
||
'Transcending earthly limits'
|
||
]
|
||
|
||
const loadmsg = loading[ Math.floor(Math.random()*1000) % loading.length ] + "..(please wait..)"
|
||
const text_color = "\r[38;5;129m"
|
||
const text_reset = "\033[0m"
|
||
this.emit('status',loadmsg)
|
||
this.emit('serial-output-string', text_color + loadmsg + text_reset + "\n\r")
|
||
|
||
|
||
this.addEventListener('emulator-started', async (e) => {
|
||
|
||
// OVERLAY FS *FIXME*
|
||
//if( me.opts.overlayfs ){
|
||
// fetch(me.opts.overlayfs)
|
||
// .then( (f) => {
|
||
// f.arrayBuffer().then( (buf) => {
|
||
// emulator.create_file('overlayfs.zip', new Uint8Array(buf) )
|
||
// })
|
||
// })
|
||
//}
|
||
|
||
let line = ''
|
||
this.ready = false
|
||
|
||
this.addEventListener(`serial0-output-string`, async (e) => {
|
||
const str = e.detail
|
||
|
||
// lets scan for a prompt so we can send a 'ready' event to the world
|
||
if( !this.ready && str.match(/\n(\/ #|~%|\[.*\]>)/) ){
|
||
this.emit('postReady',{})
|
||
this.ready = true
|
||
setTimeout( () => this.emit('ready',{}), 500 )
|
||
}
|
||
if( this.ready ) this.emit('serial-output-string', e.detail )
|
||
})
|
||
});
|
||
|
||
}
|
||
|
||
ISOTerminal.prototype.bufferOutput = function(byte,cb,latency){
|
||
const resetBuffer = () => ({str:""})
|
||
this.buffer = this.buffer || resetBuffer()
|
||
this.buffer.str += String.fromCharCode(byte)
|
||
if( !this.buffer.id ){
|
||
cb(this.buffer.str) // send out leading call
|
||
this.buffer = resetBuffer()
|
||
this.buffer.id = setTimeout( () => { // accumulate succesive calls
|
||
if( this.buffer.str ) cb(this.buffer.str)
|
||
this.buffer = resetBuffer()
|
||
}, this.latency || 250)
|
||
}
|
||
}
|
||
|