From a54d8fb8f1ea2184e508adf160915a27b95a7302 Mon Sep 17 00:00:00 2001
From: ZoRo <dos21h@gmail.com>
Date: Mon, 30 Nov 2020 08:03:00 +0000
Subject: Version 0.3

---
 fractal.c  |  66 +++++++++++++++----------------------------------------------
 index.html |  15 ++++++++++++--
 index.js   |   2 +-
 index.wasm | Bin 570905 -> 570774 bytes
 4 files changed, 30 insertions(+), 53 deletions(-)

diff --git a/fractal.c b/fractal.c
index 86ca9f4..ab326bd 100644
--- a/fractal.c
+++ b/fractal.c
@@ -17,17 +17,12 @@
 #include <GLES2/gl2.h>
 #endif
 
-
-//#include <GL/glu.h>
-
 #include "koh.h"
-//#include "queue.h"
 
 #define SCREEN_WIDTH   320
 #define SCREEN_WIDTH2  (SCREEN_WIDTH/2)
 #define SCREEN_HEIGHT  320
 #define SCREEN_HEIGHT2 (SCREEN_HEIGHT/2)
-//#define MAX_GENERATION 5
 
 static int quit=0;
 static SDL_Window *window = NULL;
@@ -39,11 +34,12 @@ typedef struct rgba32_t
 } rgba32_t;
 
 #define MAX_LEVEL 7
-#define QUEUE_SIZE (1+MAX_LEVEL*MAX_LEVEL*MAX_LEVEL*MAX_LEVEL)
+#define QUEUE_SIZE (1+MAX_LEVEL*MAX_LEVEL*MAX_LEVEL*MAX_LEVEL*3)
 
 int queue_index=0;
 koh_node koh_queue[QUEUE_SIZE];
 koh_config koh_set_config;
+int first_run=1;
 
 
 
@@ -63,16 +59,14 @@ void queue_init()
 
 void queue_add(koh_node kn)
 {
-    if (queue_index > QUEUE_SIZE)
+    if (queue_index >= QUEUE_SIZE)
     {
         printf("Cannot add to queue\n");
-        //return -1;
         return ;
     }
     koh_queue[queue_index] = kn;
     queue_index += 1;
     return;
-    //return 0;
 }
 
 
@@ -80,7 +74,7 @@ koh_node queue_get(int idx)
 {
     koh_node kn = {-1,-1,-1,-1};
 
-    if ((idx<0) || (idx>QUEUE_SIZE))
+    if ((idx<0) || (idx>=QUEUE_SIZE))
     {
         return kn;
     }
@@ -120,11 +114,6 @@ rgba32_t color_gen_mainlv(rgba32_t original, int gen, int max_gen)
     double color_b = 14.0/255;
     rgba32_t c = {color_r, color_g, color_b,0};
 
-    /*
-    c.r = 1.0*180/255 + (gen-max_gen)*color_r;
-    c.g = 1.0*100/255 + (gen-max_gen)*color_g;
-    c.b = 1.0*50/255 + (gen-max_gen)*color_b;
-    */
     c.r = 1.0*180/255 - (max_gen-gen)*color_r;
     c.g = 1.0*100/255 - (max_gen-gen)*color_g;
     c.b = 1.0*50/255  - (max_gen-gen)*color_b;
@@ -140,11 +129,6 @@ rgba32_t color_gen_redish(rgba32_t original, int gen, int max_gen)
     double color_b = 14.0/255;
     rgba32_t c = {color_r, color_g, color_b,0};
 
-    /*
-    c.r = 1.0*180/255 + (gen-max_gen)*color_r;
-    c.g = 1.0*100/255 + (gen-max_gen)*color_g;
-    c.b = 1.0*50/255 + (gen-max_gen)*color_b;
-    */
     c.r = 1.0*180/255 - (max_gen-gen)*color_r;
     c.g = 1.0*30/255 - (max_gen-gen)*color_g;
     c.b = 1.0*10/255  - (max_gen-gen)*color_b;
@@ -160,11 +144,6 @@ rgba32_t color_gen_yellowish(rgba32_t original, int gen, int max_gen)
     double color_b = 14.0/255;
     rgba32_t c = {color_r, color_g, color_b,0};
 
-    /*
-    c.r = 1.0*180/255 + (gen-max_gen)*color_r;
-    c.g = 1.0*100/255 + (gen-max_gen)*color_g;
-    c.b = 1.0*50/255 + (gen-max_gen)*color_b;
-    */
     c.r = 1.0*180/255 - (max_gen-gen)*color_r;
     c.g = 1.0*160/255 - (max_gen-gen)*color_g;
     c.b = 1.0*40/255  - (max_gen-gen)*color_b;
@@ -199,12 +178,10 @@ void generate_koh(int gener, double size, int posx, int posy, double k)
     int i;
     koh_node kn = {-1,-1,-1,-1};
 
-    //printf("%f %f\n",size,k);
     double t_size = size*k;
 
     if (gener<0)
     {
-        //return 0;
         return;
     }
 
@@ -369,9 +346,6 @@ void RectPXcolor( int x, int y,int w, int h, rgba32_t c )
     glEnableVertexAttribArray(1);
     glBindBuffer(GL_ARRAY_BUFFER, colorBuffer);
     glVertexAttribPointer(1 /* ? */, 3, GL_FLOAT, GL_FALSE, 0, 0);
-
-    //glDisableVertexAttribArray(0);
-	//glDisableVertexAttribArray(1);
     
     glDrawArrays (  GL_TRIANGLE_FAN, 0, 4 );
 
@@ -383,7 +357,7 @@ void RectPXcolor( int x, int y,int w, int h, rgba32_t c )
 void koh_generation_inc()
 {
     koh_set_config.max_generations += 1;
-    if (koh_set_config.max_generations >= MAX_LEVEL)
+    if (koh_set_config.max_generations > MAX_LEVEL-1)
     {
         koh_set_config.max_generations = MAX_LEVEL-1;
     }
@@ -423,7 +397,7 @@ void koh_pattern_next()
     koh_set_config.color_pattern += 1;
     if (koh_set_config.color_pattern>4)
     {
-        koh_set_config.color_pattern=2;
+        koh_set_config.color_pattern=4;
     }
 }
 
@@ -518,7 +492,7 @@ int main_tick() {
                         koh_set_config.x = SCREEN_WIDTH2-100/2;
                         koh_set_config.y = SCREEN_WIDTH2-100/2;
                         koh_set_config.k = 0.5f;
-                        koh_set_config.max_generations = MAX_LEVEL-2;
+                        koh_set_config.max_generations = MAX_LEVEL-1;
                         koh_set_config.color_pattern = 0;
                         break;
                     
@@ -554,6 +528,13 @@ int main_tick() {
             //printf("Poll event\n");
         }
 
+        //check for first ever run
+        if (first_run == 1)
+        {
+            first_run = 0;
+            update_fractal = 1;
+        }
+
         if (update_fractal == 1)
         {
             queue_init();
@@ -569,17 +550,12 @@ int main_tick() {
         }
         
         
-        //glClear( GL_COLOR_BUFFER_BIT );
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
         glUseProgram(shaderProgram);
 
         for (i=0;i<=koh_set_config.max_generations;i++)
         {
-            //rgba32_t c = color_gen_shade(start_col, i, MAX_GENERATION);
-            //rgba32_t c = color_gen_mainlv(start_col, i, MAX_LEVEL);
             rgba32_t c = color_switch(koh_set_config.color_pattern, start_col, i, MAX_LEVEL);
-            //static int once=0
-            //glColor(1.0f,0.0,0.0,0.0);
             for (j=0;j<queue_index;j++)
             {
                 
@@ -587,8 +563,6 @@ int main_tick() {
                 if (koh_queue[j].generaton == i)
                 {
                     koh_node kn = queue_get(j);
-                    //printf("j:%d %d %d %d\n",j,kn.x, kn.y, kn.size);
-                    //RectPX(kn.x, kn.y, kn.size, kn.size);
                     #ifndef __EMSCRIPTEN__
                     if (update_fractal == 1)
                     #endif
@@ -600,11 +574,8 @@ int main_tick() {
         if (update_fractal == 1)
         #endif
         {
-            //printf("SWAP\n");
             SDL_GL_SwapWindow( window );
         }
-        //SDL_UpdateWindowSurface(window);
-        //SDL_Delay( 20 );
         update_fractal=0;
 
 #if !__EMSCRIPTEN__
@@ -616,15 +587,11 @@ void main_loop()
 {
 
 #if __EMSCRIPTEN__
-	//emscripten_set_main_loop(main_tick, -1, 1);
-    //emscripten_set_main_loop(main_tick, 100, 1);
     emscripten_set_main_loop(main_tick, 25, 1);
 #else
 	while (0 == quit)
 	{
-        
 		main_tick();
-        //printf("One tick\n");
 	}
 #endif
 }
@@ -676,8 +643,8 @@ int main()
     koh_set_config.size = 100;
     koh_set_config.x = SCREEN_WIDTH2-frac_size/2;
     koh_set_config.y = SCREEN_WIDTH2-frac_size/2;
-    koh_set_config.k = 0.5;
-    koh_set_config.max_generations = MAX_LEVEL-2;
+    koh_set_config.k = 0.5f;
+    koh_set_config.max_generations = MAX_LEVEL-1;
 
     generate_koh(
         koh_set_config.max_generations, 
@@ -734,7 +701,6 @@ int main()
 
     main_loop();
 
-    //SDL_StopTextInput();
     SDL_DestroyRenderer(renderer);
     SDL_DestroyWindow(window);
     SDL_Quit();
diff --git a/index.html b/index.html
index 5499fd9..a91652f 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,7 @@
     </head>
     <body>
         <pre>
-        Koh fractal. Version: 0.1
+        Koh fractal. Version: 0.3
         </pre>
         <script type='text/javascript'>
           var Module = {};
@@ -28,16 +28,27 @@
         </div>
 
         <pre>
+          To save right click and "Save image as ..."
           Supported keys:
           left,right,up,down - change position by 10 pixels
           r                  - reset the configuration
           '-'                - decrease amount of levels
-          '+'                - increase amount of levels
+          '='                - increase amount of levels
           q                  - previous color pattern
           w                  - next color pattern
           a                  - decrease size
           s                  - increase size
         </pre>
 
+        <pre>
+          Changelog:
+            v0.3 - 
+              fixed help -> increase button set to '='
+            v0.2 - 
+              fixed increase size bug, when fractal become as point
+              color pattern bug when go to next color
+            v0.1 - initial release
+        </pre>
+
     </body>
 </html>
\ No newline at end of file
diff --git a/index.js b/index.js
index 0f86a9f..c6cc7cb 100644
--- a/index.js
+++ b/index.js
@@ -1 +1 @@
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nodePath;if(ENVIRONMENT_IS_NODE){if(ENVIRONMENT_IS_WORKER){scriptDirectory=require("path").dirname(scriptDirectory)+"/"}else{scriptDirectory=__dirname+"/"}read_=function shell_read(filename,binary){if(!nodeFS)nodeFS=require("fs");if(!nodePath)nodePath=require("path");filename=nodePath["normalize"](filename);return nodeFS["readFileSync"](filename,binary?null:"utf8")};readBinary=function readBinary(filename){var ret=read_(filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}assert(ret.buffer);return ret};if(process["argv"].length>1){thisProgram=process["argv"][1].replace(/\\/g,"/")}arguments_=process["argv"].slice(2);if(typeof module!=="undefined"){module["exports"]=Module}process["on"]("uncaughtException",function(ex){if(!(ex instanceof ExitStatus)){throw ex}});process["on"]("unhandledRejection",abort);quit_=function(status){process["exit"](status)};Module["inspect"]=function(){return"[Emscripten Module object]"}}else if(ENVIRONMENT_IS_SHELL){if(typeof 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Build with -s ASSERTIONS=1 for more info.";var e=new WebAssembly.RuntimeError(what);throw e}function hasPrefix(str,prefix){return String.prototype.startsWith?str.startsWith(prefix):str.indexOf(prefix)===0}var dataURIPrefix="data:application/octet-stream;base64,";function isDataURI(filename){return hasPrefix(filename,dataURIPrefix)}var fileURIPrefix="file://";function isFileURI(filename){return hasPrefix(filename,fileURIPrefix)}var wasmBinaryFile="index.wasm";if(!isDataURI(wasmBinaryFile)){wasmBinaryFile=locateFile(wasmBinaryFile)}function getBinary(){try{if(wasmBinary){return new Uint8Array(wasmBinary)}if(readBinary){return readBinary(wasmBinaryFile)}else{throw"both async and sync fetching of the wasm failed"}}catch(err){abort(err)}}function getBinaryPromise(){if(!wasmBinary&&(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER)&&typeof fetch==="function"&&!isFileURI(wasmBinaryFile)){return fetch(wasmBinaryFile,{credentials:"same-origin"}).then(function(response){if(!response["ok"]){throw"failed to load wasm binary file at '"+wasmBinaryFile+"'"}return response["arrayBuffer"]()}).catch(function(){return getBinary()})}return Promise.resolve().then(getBinary)}function createWasm(){var info={"a":asmLibraryArg};function receiveInstance(instance,module){var exports=instance.exports;Module["asm"]=exports;removeRunDependency("wasm-instantiate")}addRunDependency("wasm-instantiate");function receiveInstantiatedSource(output){receiveInstance(output["instance"])}function instantiateArrayBuffer(receiver){return getBinaryPromise().then(function(binary){return WebAssembly.instantiate(binary,info)}).then(receiver,function(reason){err("failed to asynchronously prepare wasm: "+reason);abort(reason)})}function instantiateAsync(){if(!wasmBinary&&typeof WebAssembly.instantiateStreaming==="function"&&!isDataURI(wasmBinaryFile)&&!isFileURI(wasmBinaryFile)&&typeof fetch==="function"){fetch(wasmBinaryFile,{credentials:"same-origin"}).then(function(response){var result=WebAssembly.instantiateStreaming(response,info);return result.then(receiveInstantiatedSource,function(reason){err("wasm streaming compile failed: "+reason);err("falling back to ArrayBuffer instantiation");return instantiateArrayBuffer(receiveInstantiatedSource)})})}else{return instantiateArrayBuffer(receiveInstantiatedSource)}}if(Module["instantiateWasm"]){try{var exports=Module["instantiateWasm"](info,receiveInstance);return exports}catch(e){err("Module.instantiateWasm callback failed with error: "+e);return false}}instantiateAsync();return{}}var tempDouble;var tempI64;var ASM_CONSTS={2202:function($0){var str=UTF8ToString($0)+"\n\n"+"Abort/Retry/Ignore/AlwaysIgnore? [ariA] :";var reply=window.prompt(str,"i");if(reply===null){reply="i"}return allocate(intArrayFromString(reply),"i8",ALLOC_NORMAL)},38108:function($0,$1,$2){var w=$0;var h=$1;var pixels=$2;if(!Module["SDL2"])Module["SDL2"]={};var SDL2=Module["SDL2"];if(SDL2.ctxCanvas!==Module["canvas"]){SDL2.ctx=Module["createContext"](Module["canvas"],false,true);SDL2.ctxCanvas=Module["canvas"]}if(SDL2.w!==w||SDL2.h!==h||SDL2.imageCtx!==SDL2.ctx){SDL2.image=SDL2.ctx.createImageData(w,h);SDL2.w=w;SDL2.h=h;SDL2.imageCtx=SDL2.ctx}var data=SDL2.image.data;var src=pixels>>2;var dst=0;var num;if(typeof CanvasPixelArray!=="undefined"&&data instanceof CanvasPixelArray){num=data.length;while(dst<num){var val=HEAP32[src];data[dst]=val&255;data[dst+1]=val>>8&255;data[dst+2]=val>>16&255;data[dst+3]=255;src++;dst+=4}}else{if(SDL2.data32Data!==data){SDL2.data32=new Int32Array(data.buffer);SDL2.data8=new Uint8Array(data.buffer)}var data32=SDL2.data32;num=data32.length;data32.set(HEAP32.subarray(src,src+num));var data8=SDL2.data8;var i=3;var j=i+4*num;if(num%8==0){while(i<j){data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0;data8[i]=255;i=i+4|0}}else{while(i<j){data8[i]=255;i=i+4|0}}}SDL2.ctx.putImageData(SDL2.image,0,0);return 0},39587:function($0,$1,$2,$3,$4){var w=$0;var h=$1;var hot_x=$2;var hot_y=$3;var pixels=$4;var canvas=document.createElement("canvas");canvas.width=w;canvas.height=h;var ctx=canvas.getContext("2d");var image=ctx.createImageData(w,h);var data=image.data;var src=pixels>>2;var dst=0;var num;if(typeof CanvasPixelArray!=="undefined"&&data instanceof CanvasPixelArray){num=data.length;while(dst<num){var val=HEAP32[src];data[dst]=val&255;data[dst+1]=val>>8&255;data[dst+2]=val>>16&255;data[dst+3]=val>>24&255;src++;dst+=4}}else{var data32=new Int32Array(data.buffer);num=data32.length;data32.set(HEAP32.subarray(src,src+num))}ctx.putImageData(image,0,0);var url=hot_x===0&&hot_y===0?"url("+canvas.toDataURL()+"), auto":"url("+canvas.toDataURL()+") "+hot_x+" "+hot_y+", auto";var urlBuf=_malloc(url.length+1);stringToUTF8(url,urlBuf,url.length+1);return urlBuf},40576:function($0){if(Module["canvas"]){Module["canvas"].style["cursor"]=UTF8ToString($0)}return 0},40669:function(){if(Module["canvas"]){Module["canvas"].style["cursor"]="none"}},41894:function(){return screen.width},41921:function(){return screen.height},41949:function(){return window.innerWidth},41981:function(){return window.innerHeight},42059:function($0){if(typeof setWindowTitle!=="undefined"){setWindowTitle(UTF8ToString($0))}return 0},42193:function(){if(typeof AudioContext!=="undefined"){return 1}else if(typeof webkitAudioContext!=="undefined"){return 1}return 0},42359:function(){if(typeof navigator.mediaDevices!=="undefined"&&typeof navigator.mediaDevices.getUserMedia!=="undefined"){return 1}else if(typeof navigator.webkitGetUserMedia!=="undefined"){return 1}return 0},42585:function($0){if(typeof Module["SDL2"]==="undefined"){Module["SDL2"]={}}var SDL2=Module["SDL2"];if(!$0){SDL2.audio={}}else{SDL2.capture={}}if(!SDL2.audioContext){if(typeof AudioContext!=="undefined"){SDL2.audioContext=new AudioContext}else if(typeof webkitAudioContext!=="undefined"){SDL2.audioContext=new webkitAudioContext}if(SDL2.audioContext){autoResumeAudioContext(SDL2.audioContext)}}return SDL2.audioContext===undefined?-1:0},43138:function(){var SDL2=Module["SDL2"];return SDL2.audioContext.sampleRate},43208:function($0,$1,$2,$3){var SDL2=Module["SDL2"];var have_microphone=function(stream){if(SDL2.capture.silenceTimer!==undefined){clearTimeout(SDL2.capture.silenceTimer);SDL2.capture.silenceTimer=undefined}SDL2.capture.mediaStreamNode=SDL2.audioContext.createMediaStreamSource(stream);SDL2.capture.scriptProcessorNode=SDL2.audioContext.createScriptProcessor($1,$0,1);SDL2.capture.scriptProcessorNode.onaudioprocess=function(audioProcessingEvent){if(SDL2===undefined||SDL2.capture===undefined){return}audioProcessingEvent.outputBuffer.getChannelData(0).fill(0);SDL2.capture.currentCaptureBuffer=audioProcessingEvent.inputBuffer;dynCall("vi",$2,[$3])};SDL2.capture.mediaStreamNode.connect(SDL2.capture.scriptProcessorNode);SDL2.capture.scriptProcessorNode.connect(SDL2.audioContext.destination);SDL2.capture.stream=stream};var no_microphone=function(error){};SDL2.capture.silenceBuffer=SDL2.audioContext.createBuffer($0,$1,SDL2.audioContext.sampleRate);SDL2.capture.silenceBuffer.getChannelData(0).fill(0);var silence_callback=function(){SDL2.capture.currentCaptureBuffer=SDL2.capture.silenceBuffer;dynCall("vi",$2,[$3])};SDL2.capture.silenceTimer=setTimeout(silence_callback,$1/SDL2.audioContext.sampleRate*1e3);if(navigator.mediaDevices!==undefined&&navigator.mediaDevices.getUserMedia!==undefined){navigator.mediaDevices.getUserMedia({audio:true,video:false}).then(have_microphone).catch(no_microphone)}else if(navigator.webkitGetUserMedia!==undefined){navigator.webkitGetUserMedia({audio:true,video:false},have_microphone,no_microphone)}},44860:function($0,$1,$2,$3){var SDL2=Module["SDL2"];SDL2.audio.scriptProcessorNode=SDL2.audioContext["createScriptProcessor"]($1,0,$0);SDL2.audio.scriptProcessorNode["onaudioprocess"]=function(e){if(SDL2===undefined||SDL2.audio===undefined){return}SDL2.audio.currentOutputBuffer=e["outputBuffer"];dynCall("vi",$2,[$3])};SDL2.audio.scriptProcessorNode["connect"](SDL2.audioContext["destination"])},45270:function($0,$1){var SDL2=Module["SDL2"];var numChannels=SDL2.capture.currentCaptureBuffer.numberOfChannels;for(var c=0;c<numChannels;++c){var channelData=SDL2.capture.currentCaptureBuffer.getChannelData(c);if(channelData.length!=$1){throw"Web Audio capture buffer length mismatch! Destination size: "+channelData.length+" samples vs expected "+$1+" samples!"}if(numChannels==1){for(var j=0;j<$1;++j){setValue($0+j*4,channelData[j],"float")}}else{for(var j=0;j<$1;++j){setValue($0+(j*numChannels+c)*4,channelData[j],"float")}}}},45875:function($0,$1){var SDL2=Module["SDL2"];var numChannels=SDL2.audio.currentOutputBuffer["numberOfChannels"];for(var c=0;c<numChannels;++c){var channelData=SDL2.audio.currentOutputBuffer["getChannelData"](c);if(channelData.length!=$1){throw"Web Audio output buffer length mismatch! Destination size: "+channelData.length+" samples vs expected "+$1+" samples!"}for(var j=0;j<$1;++j){channelData[j]=HEAPF32[$0+(j*numChannels+c<<2)>>2]}}},46355:function($0){var SDL2=Module["SDL2"];if($0){if(SDL2.capture.silenceTimer!==undefined){clearTimeout(SDL2.capture.silenceTimer)}if(SDL2.capture.stream!==undefined){var tracks=SDL2.capture.stream.getAudioTracks();for(var i=0;i<tracks.length;i++){SDL2.capture.stream.removeTrack(tracks[i])}SDL2.capture.stream=undefined}if(SDL2.capture.scriptProcessorNode!==undefined){SDL2.capture.scriptProcessorNode.onaudioprocess=function(audioProcessingEvent){};SDL2.capture.scriptProcessorNode.disconnect();SDL2.capture.scriptProcessorNode=undefined}if(SDL2.capture.mediaStreamNode!==undefined){SDL2.capture.mediaStreamNode.disconnect();SDL2.capture.mediaStreamNode=undefined}if(SDL2.capture.silenceBuffer!==undefined){SDL2.capture.silenceBuffer=undefined}SDL2.capture=undefined}else{if(SDL2.audio.scriptProcessorNode!=undefined){SDL2.audio.scriptProcessorNode.disconnect();SDL2.audio.scriptProcessorNode=undefined}SDL2.audio=undefined}if(SDL2.audioContext!==undefined&&SDL2.audio===undefined&&SDL2.capture===undefined){SDL2.audioContext.close();SDL2.audioContext=undefined}}};function listenOnce(object,event,func){object.addEventListener(event,func,{"once":true})}function autoResumeAudioContext(ctx,elements){if(!elements){elements=[document,document.getElementById("canvas")]}["keydown","mousedown","touchstart"].forEach(function(event){elements.forEach(function(element){if(element){listenOnce(element,event,function(){if(ctx.state==="suspended")ctx.resume()})}})})}function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback(Module);continue}var func=callback.func;if(typeof func==="number"){if(callback.arg===undefined){wasmTable.get(func)()}else{wasmTable.get(func)(callback.arg)}}else{func(callback.arg===undefined?null:callback.arg)}}}function demangle(func){return func}function demangleAll(text){var regex=/\b_Z[\w\d_]+/g;return text.replace(regex,function(x){var y=demangle(x);return x===y?x:y+" ["+x+"]"})}function dynCallLegacy(sig,ptr,args){if(args&&args.length){return Module["dynCall_"+sig].apply(null,[ptr].concat(args))}return Module["dynCall_"+sig].call(null,ptr)}function dynCall(sig,ptr,args){if(sig.indexOf("j")!=-1){return dynCallLegacy(sig,ptr,args)}return wasmTable.get(ptr).apply(null,args)}function jsStackTrace(){var error=new Error;if(!error.stack){try{throw new Error}catch(e){error=e}if(!error.stack){return"(no stack trace available)"}}return error.stack.toString()}function stackTrace(){var js=jsStackTrace();if(Module["extraStackTrace"])js+="\n"+Module["extraStackTrace"]();return demangleAll(js)}function setErrNo(value){HEAP32[___errno_location()>>2]=value;return value}var PATH={splitPath:function(filename){var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)},normalizeArray:function(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up;up--){parts.unshift("..")}}return parts},normalize:function(path){var isAbsolute=path.charAt(0)==="/",trailingSlash=path.substr(-1)==="/";path=PATH.normalizeArray(path.split("/").filter(function(p){return!!p}),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path},dirname:function(path){var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.substr(0,dir.length-1)}return root+dir},basename:function(path){if(path==="/")return"/";path=PATH.normalize(path);path=path.replace(/\/$/,"");var lastSlash=path.lastIndexOf("/");if(lastSlash===-1)return path;return path.substr(lastSlash+1)},extname:function(path){return PATH.splitPath(path)[3]},join:function(){var paths=Array.prototype.slice.call(arguments,0);return PATH.normalize(paths.join("/"))},join2:function(l,r){return PATH.normalize(l+"/"+r)}};var PATH_FS={resolve:function(){var resolvedPath="",resolvedAbsolute=false;for(var i=arguments.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?arguments[i]:FS.cwd();if(typeof path!=="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}resolvedPath=PATH.normalizeArray(resolvedPath.split("/").filter(function(p){return!!p}),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."},relative:function(from,to){from=PATH_FS.resolve(from).substr(1);to=PATH_FS.resolve(to).substr(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")}};var TTY={ttys:[],init:function(){},shutdown:function(){},register:function(dev,ops){TTY.ttys[dev]={input:[],output:[],ops:ops};FS.registerDevice(dev,TTY.stream_ops)},stream_ops:{open:function(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(43)}stream.tty=tty;stream.seekable=false},close:function(stream){stream.tty.ops.flush(stream.tty)},flush:function(stream){stream.tty.ops.flush(stream.tty)},read:function(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.get_char){throw new FS.ErrnoError(60)}var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=stream.tty.ops.get_char(stream.tty)}catch(e){throw new FS.ErrnoError(29)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(6)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.timestamp=Date.now()}return bytesRead},write:function(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.put_char){throw new FS.ErrnoError(60)}try{for(var i=0;i<length;i++){stream.tty.ops.put_char(stream.tty,buffer[offset+i])}}catch(e){throw new FS.ErrnoError(29)}if(length){stream.node.timestamp=Date.now()}return i}},default_tty_ops:{get_char:function(tty){if(!tty.input.length){var result=null;if(ENVIRONMENT_IS_NODE){var BUFSIZE=256;var buf=Buffer.alloc?Buffer.alloc(BUFSIZE):new Buffer(BUFSIZE);var bytesRead=0;try{bytesRead=nodeFS.readSync(process.stdin.fd,buf,0,BUFSIZE,null)}catch(e){if(e.toString().indexOf("EOF")!=-1)bytesRead=0;else throw e}if(bytesRead>0){result=buf.slice(0,bytesRead).toString("utf-8")}else{result=null}}else if(typeof window!="undefined"&&typeof window.prompt=="function"){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else if(typeof readline=="function"){result=readline();if(result!==null){result+="\n"}}if(!result){return null}tty.input=intArrayFromString(result,true)}return tty.input.shift()},put_char:function(tty,val){if(val===null||val===10){out(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},flush:function(tty){if(tty.output&&tty.output.length>0){out(UTF8ArrayToString(tty.output,0));tty.output=[]}}},default_tty1_ops:{put_char:function(tty,val){if(val===null||val===10){err(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},flush:function(tty){if(tty.output&&tty.output.length>0){err(UTF8ArrayToString(tty.output,0));tty.output=[]}}}};var MEMFS={ops_table:null,mount:function(mount){return MEMFS.createNode(null,"/",16384|511,0)},createNode:function(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){throw new FS.ErrnoError(63)}if(!MEMFS.ops_table){MEMFS.ops_table={dir:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,lookup:MEMFS.node_ops.lookup,mknod:MEMFS.node_ops.mknod,rename:MEMFS.node_ops.rename,unlink:MEMFS.node_ops.unlink,rmdir:MEMFS.node_ops.rmdir,readdir:MEMFS.node_ops.readdir,symlink:MEMFS.node_ops.symlink},stream:{llseek:MEMFS.stream_ops.llseek}},file:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:{llseek:MEMFS.stream_ops.llseek,read:MEMFS.stream_ops.read,write:MEMFS.stream_ops.write,allocate:MEMFS.stream_ops.allocate,mmap:MEMFS.stream_ops.mmap,msync:MEMFS.stream_ops.msync}},link:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,readlink:MEMFS.node_ops.readlink},stream:{}},chrdev:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:FS.chrdev_stream_ops}}}var node=FS.createNode(parent,name,mode,dev);if(FS.isDir(node.mode)){node.node_ops=MEMFS.ops_table.dir.node;node.stream_ops=MEMFS.ops_table.dir.stream;node.contents={}}else if(FS.isFile(node.mode)){node.node_ops=MEMFS.ops_table.file.node;node.stream_ops=MEMFS.ops_table.file.stream;node.usedBytes=0;node.contents=null}else if(FS.isLink(node.mode)){node.node_ops=MEMFS.ops_table.link.node;node.stream_ops=MEMFS.ops_table.link.stream}else if(FS.isChrdev(node.mode)){node.node_ops=MEMFS.ops_table.chrdev.node;node.stream_ops=MEMFS.ops_table.chrdev.stream}node.timestamp=Date.now();if(parent){parent.contents[name]=node}return node},getFileDataAsRegularArray:function(node){if(node.contents&&node.contents.subarray){var arr=[];for(var i=0;i<node.usedBytes;++i)arr.push(node.contents[i]);return arr}return node.contents},getFileDataAsTypedArray:function(node){if(!node.contents)return new Uint8Array(0);if(node.contents.subarray)return node.contents.subarray(0,node.usedBytes);return new Uint8Array(node.contents)},expandFileStorage:function(node,newCapacity){var prevCapacity=node.contents?node.contents.length:0;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity<CAPACITY_DOUBLING_MAX?2:1.125)>>>0);if(prevCapacity!=0)newCapacity=Math.max(newCapacity,256);var oldContents=node.contents;node.contents=new Uint8Array(newCapacity);if(node.usedBytes>0)node.contents.set(oldContents.subarray(0,node.usedBytes),0);return},resizeFileStorage:function(node,newSize){if(node.usedBytes==newSize)return;if(newSize==0){node.contents=null;node.usedBytes=0;return}if(!node.contents||node.contents.subarray){var oldContents=node.contents;node.contents=new Uint8Array(newSize);if(oldContents){node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)))}node.usedBytes=newSize;return}if(!node.contents)node.contents=[];if(node.contents.length>newSize)node.contents.length=newSize;else while(node.contents.length<newSize)node.contents.push(0);node.usedBytes=newSize},node_ops:{getattr:function(node){var attr={};attr.dev=FS.isChrdev(node.mode)?node.id:1;attr.ino=node.id;attr.mode=node.mode;attr.nlink=1;attr.uid=0;attr.gid=0;attr.rdev=node.rdev;if(FS.isDir(node.mode)){attr.size=4096}else if(FS.isFile(node.mode)){attr.size=node.usedBytes}else if(FS.isLink(node.mode)){attr.size=node.link.length}else{attr.size=0}attr.atime=new Date(node.timestamp);attr.mtime=new Date(node.timestamp);attr.ctime=new Date(node.timestamp);attr.blksize=4096;attr.blocks=Math.ceil(attr.size/attr.blksize);return attr},setattr:function(node,attr){if(attr.mode!==undefined){node.mode=attr.mode}if(attr.timestamp!==undefined){node.timestamp=attr.timestamp}if(attr.size!==undefined){MEMFS.resizeFileStorage(node,attr.size)}},lookup:function(parent,name){throw FS.genericErrors[44]},mknod:function(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)},rename:function(old_node,new_dir,new_name){if(FS.isDir(old_node.mode)){var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(new_node){for(var i in new_node.contents){throw new FS.ErrnoError(55)}}}delete old_node.parent.contents[old_node.name];old_node.name=new_name;new_dir.contents[new_name]=old_node;old_node.parent=new_dir},unlink:function(parent,name){delete parent.contents[name]},rmdir:function(parent,name){var node=FS.lookupNode(parent,name);for(var i in node.contents){throw new FS.ErrnoError(55)}delete parent.contents[name]},readdir:function(node){var entries=[".",".."];for(var key in node.contents){if(!node.contents.hasOwnProperty(key)){continue}entries.push(key)}return entries},symlink:function(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node},readlink:function(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(28)}return node.link}},stream_ops:{read:function(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=stream.node.usedBytes)return 0;var size=Math.min(stream.node.usedBytes-position,length);if(size>8&&contents.subarray){buffer.set(contents.subarray(position,position+size),offset)}else{for(var i=0;i<size;i++)buffer[offset+i]=contents[position+i]}return size},write:function(stream,buffer,offset,length,position,canOwn){if(!length)return 0;var node=stream.node;node.timestamp=Date.now();if(buffer.subarray&&(!node.contents||node.contents.subarray)){if(canOwn){node.contents=buffer.subarray(offset,offset+length);node.usedBytes=length;return length}else if(node.usedBytes===0&&position===0){node.contents=buffer.slice(offset,offset+length);node.usedBytes=length;return length}else if(position+length<=node.usedBytes){node.contents.set(buffer.subarray(offset,offset+length),position);return length}}MEMFS.expandFileStorage(node,position+length);if(node.contents.subarray&&buffer.subarray){node.contents.set(buffer.subarray(offset,offset+length),position)}else{for(var i=0;i<length;i++){node.contents[position+i]=buffer[offset+i]}}node.usedBytes=Math.max(node.usedBytes,position+length);return length},llseek:function(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.usedBytes}}if(position<0){throw new FS.ErrnoError(28)}return position},allocate:function(stream,offset,length){MEMFS.expandFileStorage(stream.node,offset+length);stream.node.usedBytes=Math.max(stream.node.usedBytes,offset+length)},mmap:function(stream,address,length,position,prot,flags){assert(address===0);if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&contents.buffer===buffer){allocated=false;ptr=contents.byteOffset}else{if(position>0||position+length<contents.length){if(contents.subarray){contents=contents.subarray(position,position+length)}else{contents=Array.prototype.slice.call(contents,position,position+length)}}allocated=true;ptr=FS.mmapAlloc(length);if(!ptr){throw new FS.ErrnoError(48)}HEAP8.set(contents,ptr)}return{ptr:ptr,allocated:allocated}},msync:function(stream,buffer,offset,length,mmapFlags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}if(mmapFlags&2){return 0}var bytesWritten=MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function(e){if(!(e instanceof FS.ErrnoError))throw e+" : "+stackTrace();return setErrNo(e.errno)},lookupPath:function(path,opts){path=PATH_FS.resolve(FS.cwd(),path);opts=opts||{};if(!path)return{path:"",node:null};var defaults={follow_mount:true,recurse_count:0};for(var key in defaults){if(opts[key]===undefined){opts[key]=defaults[key]}}if(opts.recurse_count>8){throw new FS.ErrnoError(32)}var parts=PATH.normalizeArray(path.split("/").filter(function(p){return!!p}),false);var current=FS.root;var current_path="/";for(var i=0;i<parts.length;i++){var islast=i===parts.length-1;if(islast&&opts.parent){break}current=FS.lookupNode(current,parts[i]);current_path=PATH.join2(current_path,parts[i]);if(FS.isMountpoint(current)){if(!islast||islast&&opts.follow_mount){current=current.mounted.root}}if(!islast||opts.follow){var count=0;while(FS.isLink(current.mode)){var link=FS.readlink(current_path);current_path=PATH_FS.resolve(PATH.dirname(current_path),link);var lookup=FS.lookupPath(current_path,{recurse_count:opts.recurse_count});current=lookup.node;if(count++>40){throw new FS.ErrnoError(32)}}}}return{path:current_path,node:current}},getPath:function(node){var path;while(true){if(FS.isRoot(node)){var mount=node.mount.mountpoint;if(!path)return mount;return mount[mount.length-1]!=="/"?mount+"/"+path:mount+path}path=path?node.name+"/"+path:node.name;node=node.parent}},hashName:function(parentid,name){var hash=0;for(var i=0;i<name.length;i++){hash=(hash<<5)-hash+name.charCodeAt(i)|0}return(parentid+hash>>>0)%FS.nameTable.length},hashAddNode:function(node){var hash=FS.hashName(node.parent.id,node.name);node.name_next=FS.nameTable[hash];FS.nameTable[hash]=node},hashRemoveNode:function(node){var hash=FS.hashName(node.parent.id,node.name);if(FS.nameTable[hash]===node){FS.nameTable[hash]=node.name_next}else{var current=FS.nameTable[hash];while(current){if(current.name_next===node){current.name_next=node.name_next;break}current=current.name_next}}},lookupNode:function(parent,name){var errCode=FS.mayLookup(parent);if(errCode){throw new FS.ErrnoError(errCode,parent)}var hash=FS.hashName(parent.id,name);for(var node=FS.nameTable[hash];node;node=node.name_next){var nodeName=node.name;if(node.parent.id===parent.id&&nodeName===name){return node}}return FS.lookup(parent,name)},createNode:function(parent,name,mode,rdev){var node=new FS.FSNode(parent,name,mode,rdev);FS.hashAddNode(node);return node},destroyNode:function(node){FS.hashRemoveNode(node)},isRoot:function(node){return node===node.parent},isMountpoint:function(node){return!!node.mounted},isFile:function(mode){return(mode&61440)===32768},isDir:function(mode){return(mode&61440)===16384},isLink:function(mode){return(mode&61440)===40960},isChrdev:function(mode){return(mode&61440)===8192},isBlkdev:function(mode){return(mode&61440)===24576},isFIFO:function(mode){return(mode&61440)===4096},isSocket:function(mode){return(mode&49152)===49152},flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function(str){var flags=FS.flagModes[str];if(typeof flags==="undefined"){throw new Error("Unknown file open mode: "+str)}return flags},flagsToPermissionString:function(flag){var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms},nodePermissions:function(node,perms){if(FS.ignorePermissions){return 0}if(perms.indexOf("r")!==-1&&!(node.mode&292)){return 2}else if(perms.indexOf("w")!==-1&&!(node.mode&146)){return 2}else if(perms.indexOf("x")!==-1&&!(node.mode&73)){return 2}return 0},mayLookup:function(dir){var errCode=FS.nodePermissions(dir,"x");if(errCode)return errCode;if(!dir.node_ops.lookup)return 2;return 0},mayCreate:function(dir,name){try{var node=FS.lookupNode(dir,name);return 20}catch(e){}return FS.nodePermissions(dir,"wx")},mayDelete:function(dir,name,isdir){var node;try{node=FS.lookupNode(dir,name)}catch(e){return e.errno}var errCode=FS.nodePermissions(dir,"wx");if(errCode){return errCode}if(isdir){if(!FS.isDir(node.mode)){return 54}if(FS.isRoot(node)||FS.getPath(node)===FS.cwd()){return 10}}else{if(FS.isDir(node.mode)){return 31}}return 0},mayOpen:function(node,flags){if(!node){return 44}if(FS.isLink(node.mode)){return 32}else if(FS.isDir(node.mode)){if(FS.flagsToPermissionString(flags)!=="r"||flags&512){return 31}}return FS.nodePermissions(node,FS.flagsToPermissionString(flags))},MAX_OPEN_FDS:4096,nextfd:function(fd_start,fd_end){fd_start=fd_start||0;fd_end=fd_end||FS.MAX_OPEN_FDS;for(var fd=fd_start;fd<=fd_end;fd++){if(!FS.streams[fd]){return fd}}throw new FS.ErrnoError(33)},getStream:function(fd){return FS.streams[fd]},createStream:function(stream,fd_start,fd_end){if(!FS.FSStream){FS.FSStream=function(){};FS.FSStream.prototype={object:{get:function(){return this.node},set:function(val){this.node=val}},isRead:{get:function(){return(this.flags&2097155)!==1}},isWrite:{get:function(){return(this.flags&2097155)!==0}},isAppend:{get:function(){return this.flags&1024}}}}var newStream=new FS.FSStream;for(var p in stream){newStream[p]=stream[p]}stream=newStream;var fd=FS.nextfd(fd_start,fd_end);stream.fd=fd;FS.streams[fd]=stream;return stream},closeStream:function(fd){FS.streams[fd]=null},chrdev_stream_ops:{open:function(stream){var device=FS.getDevice(stream.node.rdev);stream.stream_ops=device.stream_ops;if(stream.stream_ops.open){stream.stream_ops.open(stream)}},llseek:function(){throw new FS.ErrnoError(70)}},major:function(dev){return dev>>8},minor:function(dev){return dev&255},makedev:function(ma,mi){return ma<<8|mi},registerDevice:function(dev,ops){FS.devices[dev]={stream_ops:ops}},getDevice:function(dev){return FS.devices[dev]},getMounts:function(mount){var mounts=[];var check=[mount];while(check.length){var m=check.pop();mounts.push(m);check.push.apply(check,m.mounts)}return mounts},syncfs:function(populate,callback){if(typeof populate==="function"){callback=populate;populate=false}FS.syncFSRequests++;if(FS.syncFSRequests>1){err("warning: "+FS.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work")}var mounts=FS.getMounts(FS.root.mount);var completed=0;function doCallback(errCode){FS.syncFSRequests--;return callback(errCode)}function done(errCode){if(errCode){if(!done.errored){done.errored=true;return doCallback(errCode)}return}if(++completed>=mounts.length){doCallback(null)}}mounts.forEach(function(mount){if(!mount.type.syncfs){return done(null)}mount.type.syncfs(mount,populate,done)})},mount:function(type,opts,mountpoint){var root=mountpoint==="/";var pseudo=!mountpoint;var node;if(root&&FS.root){throw new FS.ErrnoError(10)}else if(!root&&!pseudo){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});mountpoint=lookup.path;node=lookup.node;if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}if(!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}}var mount={type:type,opts:opts,mountpoint:mountpoint,mounts:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;if(node.mount){node.mount.mounts.push(mount)}}return mountRoot},unmount:function(mountpoint){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});if(!FS.isMountpoint(lookup.node)){throw new FS.ErrnoError(28)}var node=lookup.node;var mount=node.mounted;var mounts=FS.getMounts(mount);Object.keys(FS.nameTable).forEach(function(hash){var current=FS.nameTable[hash];while(current){var next=current.name_next;if(mounts.indexOf(current.mount)!==-1){FS.destroyNode(current)}current=next}});node.mounted=null;var idx=node.mount.mounts.indexOf(mount);node.mount.mounts.splice(idx,1)},lookup:function(parent,name){return parent.node_ops.lookup(parent,name)},mknod:function(path,mode,dev){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);if(!name||name==="."||name===".."){throw new FS.ErrnoError(28)}var errCode=FS.mayCreate(parent,name);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.mknod){throw new FS.ErrnoError(63)}return parent.node_ops.mknod(parent,name,mode,dev)},create:function(path,mode){mode=mode!==undefined?mode:438;mode&=4095;mode|=32768;return FS.mknod(path,mode,0)},mkdir:function(path,mode){mode=mode!==undefined?mode:511;mode&=511|512;mode|=16384;return FS.mknod(path,mode,0)},mkdirTree:function(path,mode){var dirs=path.split("/");var d="";for(var i=0;i<dirs.length;++i){if(!dirs[i])continue;d+="/"+dirs[i];try{FS.mkdir(d,mode)}catch(e){if(e.errno!=20)throw e}}},mkdev:function(path,mode,dev){if(typeof dev==="undefined"){dev=mode;mode=438}mode|=8192;return FS.mknod(path,mode,dev)},symlink:function(oldpath,newpath){if(!PATH_FS.resolve(oldpath)){throw new FS.ErrnoError(44)}var lookup=FS.lookupPath(newpath,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(44)}var newname=PATH.basename(newpath);var errCode=FS.mayCreate(parent,newname);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.symlink){throw new FS.ErrnoError(63)}return parent.node_ops.symlink(parent,newname,oldpath)},rename:function(old_path,new_path){var old_dirname=PATH.dirname(old_path);var new_dirname=PATH.dirname(new_path);var old_name=PATH.basename(old_path);var new_name=PATH.basename(new_path);var lookup,old_dir,new_dir;lookup=FS.lookupPath(old_path,{parent:true});old_dir=lookup.node;lookup=FS.lookupPath(new_path,{parent:true});new_dir=lookup.node;if(!old_dir||!new_dir)throw new FS.ErrnoError(44);if(old_dir.mount!==new_dir.mount){throw new FS.ErrnoError(75)}var old_node=FS.lookupNode(old_dir,old_name);var relative=PATH_FS.relative(old_path,new_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(28)}relative=PATH_FS.relative(new_path,old_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(55)}var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(old_node===new_node){return}var isdir=FS.isDir(old_node.mode);var errCode=FS.mayDelete(old_dir,old_name,isdir);if(errCode){throw new FS.ErrnoError(errCode)}errCode=new_node?FS.mayDelete(new_dir,new_name,isdir):FS.mayCreate(new_dir,new_name);if(errCode){throw new FS.ErrnoError(errCode)}if(!old_dir.node_ops.rename){throw new FS.ErrnoError(63)}if(FS.isMountpoint(old_node)||new_node&&FS.isMountpoint(new_node)){throw new FS.ErrnoError(10)}if(new_dir!==old_dir){errCode=FS.nodePermissions(old_dir,"w");if(errCode){throw new FS.ErrnoError(errCode)}}try{if(FS.trackingDelegate["willMovePath"]){FS.trackingDelegate["willMovePath"](old_path,new_path)}}catch(e){err("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: "+e.message)}FS.hashRemoveNode(old_node);try{old_dir.node_ops.rename(old_node,new_dir,new_name)}catch(e){throw e}finally{FS.hashAddNode(old_node)}try{if(FS.trackingDelegate["onMovePath"])FS.trackingDelegate["onMovePath"](old_path,new_path)}catch(e){err("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: "+e.message)}},rmdir:function(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,true);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.rmdir){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}try{if(FS.trackingDelegate["willDeletePath"]){FS.trackingDelegate["willDeletePath"](path)}}catch(e){err("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: "+e.message)}parent.node_ops.rmdir(parent,name);FS.destroyNode(node);try{if(FS.trackingDelegate["onDeletePath"])FS.trackingDelegate["onDeletePath"](path)}catch(e){err("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: "+e.message)}},readdir:function(path){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;if(!node.node_ops.readdir){throw new FS.ErrnoError(54)}return node.node_ops.readdir(node)},unlink:function(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,false);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.unlink){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}try{if(FS.trackingDelegate["willDeletePath"]){FS.trackingDelegate["willDeletePath"](path)}}catch(e){err("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: "+e.message)}parent.node_ops.unlink(parent,name);FS.destroyNode(node);try{if(FS.trackingDelegate["onDeletePath"])FS.trackingDelegate["onDeletePath"](path)}catch(e){err("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: "+e.message)}},readlink:function(path){var lookup=FS.lookupPath(path);var link=lookup.node;if(!link){throw new FS.ErrnoError(44)}if(!link.node_ops.readlink){throw new FS.ErrnoError(28)}return PATH_FS.resolve(FS.getPath(link.parent),link.node_ops.readlink(link))},stat:function(path,dontFollow){var lookup=FS.lookupPath(path,{follow:!dontFollow});var node=lookup.node;if(!node){throw new FS.ErrnoError(44)}if(!node.node_ops.getattr){throw new FS.ErrnoError(63)}return node.node_ops.getattr(node)},lstat:function(path){return FS.stat(path,true)},chmod:function(path,mode,dontFollow){var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(63)}node.node_ops.setattr(node,{mode:mode&4095|node.mode&~4095,timestamp:Date.now()})},lchmod:function(path,mode){FS.chmod(path,mode,true)},fchmod:function(fd,mode){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}FS.chmod(stream.node,mode)},chown:function(path,uid,gid,dontFollow){var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(63)}node.node_ops.setattr(node,{timestamp:Date.now()})},lchown:function(path,uid,gid){FS.chown(path,uid,gid,true)},fchown:function(fd,uid,gid){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}FS.chown(stream.node,uid,gid)},truncate:function(path,len){if(len<0){throw new FS.ErrnoError(28)}var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:true});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(63)}if(FS.isDir(node.mode)){throw new FS.ErrnoError(31)}if(!FS.isFile(node.mode)){throw new FS.ErrnoError(28)}var errCode=FS.nodePermissions(node,"w");if(errCode){throw new FS.ErrnoError(errCode)}node.node_ops.setattr(node,{size:len,timestamp:Date.now()})},ftruncate:function(fd,len){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(28)}FS.truncate(stream.node,len)},utime:function(path,atime,mtime){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;node.node_ops.setattr(node,{timestamp:Math.max(atime,mtime)})},open:function(path,flags,mode,fd_start,fd_end){if(path===""){throw new FS.ErrnoError(44)}flags=typeof flags==="string"?FS.modeStringToFlags(flags):flags;mode=typeof mode==="undefined"?438:mode;if(flags&64){mode=mode&4095|32768}else{mode=0}var node;if(typeof path==="object"){node=path}else{path=PATH.normalize(path);try{var lookup=FS.lookupPath(path,{follow:!(flags&131072)});node=lookup.node}catch(e){}}var created=false;if(flags&64){if(node){if(flags&128){throw new FS.ErrnoError(20)}}else{node=FS.mknod(path,mode,0);created=true}}if(!node){throw new FS.ErrnoError(44)}if(FS.isChrdev(node.mode)){flags&=~512}if(flags&65536&&!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}if(!created){var errCode=FS.mayOpen(node,flags);if(errCode){throw new FS.ErrnoError(errCode)}}if(flags&512){FS.truncate(node,0)}flags&=~(128|512|131072);var stream=FS.createStream({node:node,path:FS.getPath(node),flags:flags,seekable:true,position:0,stream_ops:node.stream_ops,ungotten:[],error:false},fd_start,fd_end);if(stream.stream_ops.open){stream.stream_ops.open(stream)}if(Module["logReadFiles"]&&!(flags&1)){if(!FS.readFiles)FS.readFiles={};if(!(path in FS.readFiles)){FS.readFiles[path]=1;err("FS.trackingDelegate error on read file: "+path)}}try{if(FS.trackingDelegate["onOpenFile"]){var trackingFlags=0;if((flags&2097155)!==1){trackingFlags|=FS.tracking.openFlags.READ}if((flags&2097155)!==0){trackingFlags|=FS.tracking.openFlags.WRITE}FS.trackingDelegate["onOpenFile"](path,trackingFlags)}}catch(e){err("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: "+e.message)}return stream},close:function(stream){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(stream.getdents)stream.getdents=null;try{if(stream.stream_ops.close){stream.stream_ops.close(stream)}}catch(e){throw e}finally{FS.closeStream(stream.fd)}stream.fd=null},isClosed:function(stream){return stream.fd===null},llseek:function(stream,offset,whence){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(!stream.seekable||!stream.stream_ops.llseek){throw new FS.ErrnoError(70)}if(whence!=0&&whence!=1&&whence!=2){throw new FS.ErrnoError(28)}stream.position=stream.stream_ops.llseek(stream,offset,whence);stream.ungotten=[];return stream.position},read:function(stream,buffer,offset,length,position){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.read){throw new FS.ErrnoError(28)}var seeking=typeof position!=="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesRead=stream.stream_ops.read(stream,buffer,offset,length,position);if(!seeking)stream.position+=bytesRead;return bytesRead},write:function(stream,buffer,offset,length,position,canOwn){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.write){throw new FS.ErrnoError(28)}if(stream.seekable&&stream.flags&1024){FS.llseek(stream,0,2)}var seeking=typeof position!=="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesWritten=stream.stream_ops.write(stream,buffer,offset,length,position,canOwn);if(!seeking)stream.position+=bytesWritten;try{if(stream.path&&FS.trackingDelegate["onWriteToFile"])FS.trackingDelegate["onWriteToFile"](stream.path)}catch(e){err("FS.trackingDelegate['onWriteToFile']('"+stream.path+"') threw an exception: "+e.message)}return bytesWritten},allocate:function(stream,offset,length){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(offset<0||length<=0){throw new FS.ErrnoError(28)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(8)}if(!FS.isFile(stream.node.mode)&&!FS.isDir(stream.node.mode)){throw new FS.ErrnoError(43)}if(!stream.stream_ops.allocate){throw new FS.ErrnoError(138)}stream.stream_ops.allocate(stream,offset,length)},mmap:function(stream,address,length,position,prot,flags){if((prot&2)!==0&&(flags&2)===0&&(stream.flags&2097155)!==2){throw new FS.ErrnoError(2)}if((stream.flags&20