zeta.min.js

/**
 * Copyright (c) 2018, 2019, 2020, 2021, 2022, 2023, 2024 Adrian Siekierka
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
!function(){"use strict";let e,t=Date.now();function r(e,t,r){let i=32;for(;i>8&&(t.font="bold "+i+"px sans-serif",!(t.measureText(r).width<=e.width-4));)i--;t.fillStyle="rgba(0, 0, 0, 0.75)",t.fillRect(0,0,e.width,e.height),t.textBaseline="middle";const s=(e.width-t.measureText(r).width)/2,n=e.height/2;t.fillStyle="#000000",t.fillText(r,s+2,n+2),t.fillStyle="#ffffff",t.fillText(r,s,n)}function s(){return Date.now()-t}function n(){try{return window.indexedDB||window.webkitIndexedDB||window.mozIndexedDB}catch(e){return}}function o(e,t){return new Promise(((r,i)=>{var s=new XMLHttpRequest;s.open("GET",e,!0),s.overrideMimeType("text/plain; charset=x-user-defined"),s.responseType="arraybuffer",s.onprogress=e=>{t&&t(e.loaded/e.total)},s.onload=n=>{t&&t(1),200==s.status?r(s):i("Error downloading "+e+" ("+s.status+")")},s.onerror=t=>{i("Error downloading "+e+" 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h=1;h<t.numberOfChannels;h++)t.getChannelData(h).set(a)}))}_initSpeaker(){return!!this.initialized||null!=e&&(this.initialized=!0,this.time=e.currentTime,this.emu._audio_generate_init(),this.emu._audio_stream_init(s(),this.sampleRate,!1,!0),this.emu._audio_stream_set_volume(Math.floor(this.volume*this.emu._audio_stream_get_max_volume())),this.noteDelay&&this.emu._audio_set_note_delay(this.noteDelay),this.nativeBuffer=this.emu._malloc(2*this.bufferSize),this.nativeHeap=new 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h=0;h<this.scrWidth;h++,i+=2)this._drawChar(o,h,a,e[i],e[i+1]);o!=this.ctx&&(this.ctx.fillStyle="#000000",this.ctx.fillRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(n,0,0,80*this.chrWidth/s,25*this.chrHeight,this.x_offset,this.y_offset,80*this.chrWidth*this.scale,25*this.chrHeight*this.scale))}setBlinkEnabled(e){this.emu._zzt_load_blink(0!=e)}setBlinkCycleDuration(e){this.emu._zzt_set_blink_duration_ms(Math.round(500*e))}setCharset(e,t,r){this.chrWidth=e,this.chrHeight=t,this.charset=r.slice(0),this.rdDirty=!0}setPalette(e){this.palette=new Array;for(var t=0;t<16;t++){let r=(16777215&e[t]).toString(16);for(;r.length<6;)r="0"+r;this.palette[t]="#"+r}this.rdDirty=!0}}let u={ArrowUp:72,ArrowLeft:75,ArrowRight:77,ArrowDown:80,Home:71,End:79,Insert:82,Delete:83,PageUp:73,PageDown:81,Enter:28,Escape:1,Backspace:14,Tab:15,"-":12,_:12,"=":13,"+":13,"`":41,"~":41,"\\":43,"|":43,"*":55," ":57},c={},f=function(e,t){for(var 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4&t._zzt_kmod_get()&&(s=m[r.key]||0,n=0),n>=70&&n<=83&&(s=0),(s>0||n>0)&&(t._zzt_key(s,n),i=!0),i&&r.preventDefault(),!1}),!1),document.addEventListener("keyup",(function(r){if(r.target!=e)return!1;let i=!0;h(r),"Shift"==r.key?t._zzt_kmod_clear(1):"Control"==r.key?t._zzt_kmod_clear(4):"Alt"==r.key||"AltGraph"==r.key?t._zzt_kmod_clear(8):i=!1;var s=_[r.key]||0;return 4&t._zzt_kmod_get()&&(s=0),t._zzt_keyup(s),i=!0,i&&r.preventDefault(),!1}),!1),this.element.addEventListener("mousemove",(function(e){if(null==t)return;const r=e.movementX*a.mouseSensitivity,i=e.movementY*a.mouseSensitivity;t._zzt_mouse_axis(0,r),t._zzt_mouse_axis(1,i)})),this.element.addEventListener("mousedown",(function(r){e.requestPointerLock(),null!=t&&(0==r.button?t._zzt_mouse_set(0):2==r.button?t._zzt_mouse_set(1):1==r.button&&t._zzt_mouse_set(2))})),this.element.addEventListener("mouseup",(function(e){null!=t&&(0==e.button?t._zzt_mouse_clear(0):2==e.button?t._zzt_mouse_clear(1):1==e.button&&t._zzt_mouse_clear(2))}))}loadCharset(e){const t=this.emu;if("string"==typeof e&&(e=this.vfs.get(e)),"object"==typeof e){if(0!=(255&e.length))return!1;const r=8,i=e.length>>8;if(i<=0||i>16)return!1;let s=!1;return this._u8array2buffer(e,(e=>{s=t._zzt_load_charset(r,i,e,!1)>=0})),s}return!1}_pal_file_append(e,t,r,i){const s=Math.floor(255*t[r]/i),n=Math.floor(255*t[r+1]/i),o=Math.floor(255*t[r+2]/i);e.push(o,n,s,0)}loadPalette(e){const t=this.emu;let r=[];if("string"==typeof e){let t="pal";e.toLowerCase().endsWith(".pld")&&(t="pld");const s=this.vfs.get(e);if(null==s)return!1;if("pld"==t){if(s.length<192)return!1;for(var i=0;i<16;i++)this._pal_file_append(r,s,3*D[i],63)}else{if(s.length<48)return!1;for(i=0;i<16;i++)this._pal_file_append(r,s,3*i,63)}}else if("object"==typeof e){const t=e.min||0,s=e.max||255;if(null==e.colors||e.colors.length<16)return console.warn("[zeta.loadPalette] missing or too small colors array"),!1;for(i=0;i<16;i++){const n=e.colors[i];if("string"==typeof n&&n.startsWith("#"))if(7==n.length){const e=parseInt(n.substring(1,3),16),t=parseInt(n.substring(3,5),16),i=parseInt(n.substring(5,7),16);r.push(i,t,e,0)}else{if(4!=n.length)return console.warn("[zeta.loadPalette] invalid color string length: "+n.length),!1;{const e=17*parseInt(n.substring(1,2),16),t=17*parseInt(n.substring(2,3),16),i=17*parseInt(n.substring(3,4),16);r.push(i,t,e,0)}}else{if(!("object"==typeof n&&n.length>=3))return console.warn("[zeta.loadPalette] invalid color type @ "+i),!1;{const n=Math.floor(255*(e.colors[i][0]-t)/(s-t)),o=Math.floor(255*(e.colors[i][1]-t)/(s-t)),a=Math.floor(255*(e.colors[i][2]-t)/(s-t));r.push(a,o,n,0)}}}}if(64==r.length){let e=!1;return this._u8array2buffer(r,(r=>{e=t._zzt_load_palette(r)>=0})),e}return!1}setBlinkCycleDuration(e){return this.render.setBlinkCycleDuration(e),!0}setVolume(e){return this.audio.setVolume(e),!0}getFile(e){return this.vfs.get(e)}listFiles(){return this.vfs.list()}_frame(){this._pollGamepads();const e=this.emu._zzt_get_ram(),t=new Uint8Array(this.emu.HEAPU8.buffer,e+753664,4e3);this.render.render(t,this.emu._zzt_video_mode(),this.time_ms_cached),this.emu._zzt_mark_frame(),this.frameQueued=!1}_resetLastTimerTime(){this.last_timer_time=s()}_tick(){for(this.time_ms_cached=s();this.time_ms_cached-this.last_timer_time>=U;)this.last_timer_time+=U,this.emu._zzt_mark_timer();const e=this.emu._zzt_execute(this.opcodes),t=s()-this.time_ms_cached;if(0!=e){t<5&&1==e?this.opcodes=20*this.opcodes/19:t>10&&this.opcodes>=1050&&(this.opcodes=19*this.opcodes/20),this.frameQueued||(this.frameQueued=!0,window.requestAnimationFrame((()=>this._frame())));const r=U-(this.time_ms_cached+t-this.last_timer_time);e<3||r<=1?window.postMessage("zzt_tick","*"):e>=5?setTimeout((()=>this._tick()),Math.min(e-5,r)):4==e||r<20?setTimeout((()=>this._tick()),r):window.requestAnimationFrame((()=>this._tick()))}else r(this.render.canvas,this.render.ctx,"Emulation stopped.")}_pollGamepads(){if(!navigator.getGamepads||"function"!=typeof navigator.getGamepads)return;const e=navigator.getGamepads();for(var t=0;t<e.length;t++){const i=e[t];if(null!=i&&i.axes.length>=2&&i.buttons.length>=1){const e=Math.round(127*i.axes[0]),t=Math.round(127*i.axes[1]);this.emu._zzt_joy_axis(0,e),this.emu._zzt_joy_axis(1,t);let s=!1;for(var r=0;r<i.buttons.length;r++)if(i.buttons[r].pressed){s=!0;break}s?this.emu._zzt_joy_set(0):this.emu._zzt_joy_clear(0)}}}_u8array2buffer(e,t){const r=this.emu._malloc(e.length),i=new Uint8Array(this.emu.HEAPU8.buffer,r,e.length);for(var s=0;s<e.length;s++)i[s]=e[s];t(r),this.emu._free(r)}_str2buffer(e,t){const r=this.emu._malloc(e.length+1),i=new Uint8Array(this.emu.HEAPU8.buffer,r,e.length+1);for(var s=0;s<e.length;s++){var n=e.charCodeAt(s);i[s]=n>=127?0:n}i[e.length]=0,t(r),this.emu._free(r)}}const W="1.0.6";class H{constructor(e,t,r,i){this.canvas=e,this.ctx=t,this.loaded=!1,this.path=i.path}_drawBackground(){const e=this;return new Promise(((t,r)=>{const i=new Image;i.onload=function(){const r=W,s=i.width,n=i.height;e.ctx.drawImage(i,0,0,s,n,(e.canvas.width-2*s)/2,(e.canvas.height-2*n)/2,2*s,2*n),e.ctx.font="16px sans-serif",e.ctx.fillStyle="#aaaaaa",e.ctx.textBaseline="bottom",e.ctx.fillText(r,(e.canvas.width+2*s)/2-6-e.ctx.measureText(r).width,(e.canvas.height+2*n)/2-6),e.loaded=!0,t(!0)},i.src=e.path+"loading.png"}))}progress(e){if(!this.loaded)return;const t=this.canvas,r=this.ctx,i=(t.width-640)/2,s=(t.height-350)/2;r.fillStyle="#ff0000",r.fillRect(i+28,s+224,292*e*2,20)}}window.ZetaInitialize=function(e,t){if(console.log("         _        \n _______| |_ __ _ \n|_  / _ \\ __/ _` |\n / /  __/ || (_| |\n/___\\___|\\__\\__,_|\n\n "+W),!e.render)throw new Error("Missing option: render!");if(!e.render.canvas)throw new Error("Missing option: render.canvas!");const i=e.render.canvas;i.contentEditable=!0;const s=i.getContext("2d",{alpha:!1});s.imageSmoothingEnabled=!1;try{if(!e.path)throw new Error("Missing option: path!");if(!e.files)throw new Error("Missing option: files!")}catch(e){return r(i,s,e),Promise.reject(e)}const u=new H(i,s,W,e);var c=[],f=[],d=[];try{for(var _ in e.files)f.push(0),function(t,r){const i=function(r){f[t]=Math.min(r,1),u.progress(f.reduce(((e,t)=>e+t))/e.files.length)};var s=r;if(!s.hasOwnProperty("type"))throw new Error("Missing option: files.type!");if(s.hasOwnProperty("readonly")||(s.readonly=!0),s.hasOwnProperty("ignoreCase")||(s.ignoreCase="upper"),s.use83Names=!0,"zip"==s.type){if(!s.hasOwnProperty("url"))throw new Error("Missing option: files.url!");c.push(x(s.url,s,i).then((e=>d.push(e))))}else if("array"==s.type){if(!s.hasOwnProperty("filename"))throw new Error("Missing option: files.filename!");if(!s.hasOwnProperty("data"))throw new Error("Missing option: files.data!");var n={};n[s.filename]=new Uint8Array(s.data),d.push(C(n,s))}else if("file"==s.type){if(!s.hasOwnProperty("url"))throw new Error("Missing option: files.url!");if(!s.hasOwnProperty("filename"))throw new Error("Missing option: files.filename!");c.push(o(s.url,i).then((e=>{var t={};t[s.filename]=new Uint8Array(e.response),d.push(C(t,s))})))}}(f.length-1,e.files[_])}catch(e){return r(i,s,e),Promise.reject(e)}u._drawBackground().then((e=>Promise.all(c))).then((t=>{var r=!1;if(e.storage&&"auto"==e.storage.type&&(r=!0,null!=n()?e.storage.type="indexeddb":null!=function(){try{return window.localStorage}catch(e){return}}()?e.storage.type="localstorage":(console.log("Browser does not support any form of local storage! Storing to memory..."),e.storage=void 0)),e.storage&&e.storage.type){var i=null;if("indexeddb"==e.storage.type){if(!e.storage.database)throw new Error("Missing option: storage.database!");i=function(e){const t=n();if(!t)return Promise.reject("IndexedDB not supported!");const r=new k(t,e);return r._open().then((e=>r))}("zeta_"+e.storage.database).then((e=>function(e,t){const r=new z(e,t);return r._populate().then((e=>r))}(e,{ignoreCase:"upper"}))).then((e=>d.push(e)))}else{if("localstorage"!=e.storage.type)throw new Error("Unknown storage type: "+e.storage.type);i=new Promise((t=>{if(!e.storage.database)throw new Error("Missing option: storage.database!");let r=window.localStorage;if(e.storage.storage&&(r=e.storage.storage),null==r)throw new Error("Could not find storage object!");return d.push(function(e,t,r){return new b(e,t,r)}(r,"zeta_"+e.storage.database,{ignoreCase:"upper"})),!0}))}return r&&(i=i.catch((t=>(console.log("Browser failed to initialize local storage (type "+e.storage.type+", reason: "+t+"). 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