diff --git a/codecs/imagequant/example.html b/codecs/imagequant/example.html
index e9b622a8..a1e27885 100644
--- a/codecs/imagequant/example.html
+++ b/codecs/imagequant/example.html
@@ -1,4 +1,9 @@
 <!doctype html>
+<style>
+  canvas {
+    image-rendering: pixelated;
+  }
+</style>
 <script src='imagequant.js'></script>
 <script>
   const Module = imagequant();
@@ -23,6 +28,7 @@
       create_buffer: Module.cwrap('create_buffer', 'number', ['number', 'number']),
       destroy_buffer: Module.cwrap('destroy_buffer', '', ['number']),
       quantize: Module.cwrap('quantize', '', ['number', 'number', 'number', 'number', 'number']),
+      zx_quantize: Module.cwrap('zx_quantize', '', ['number', 'number', 'number', 'number']),
       free_result: Module.cwrap('free_result', '', ['number']),
       get_result_pointer: Module.cwrap('get_result_pointer', 'number', []),
     };
@@ -30,7 +36,9 @@
     const image = await loadImage('../example.png');
     const p = api.create_buffer(image.width, image.height);
     Module.HEAP8.set(image.data, p);
-    api.quantize(p, image.width, image.height, 16, 1.0);
+    //api.quantize(p, image.width, image.height, 256, 1.0);
+    api.zx_quantize(p, image.width, image.height, 1);
+    console.log('done');
     const resultPointer = api.get_result_pointer();
     const resultView = new Uint8Array(Module.HEAP8.buffer, resultPointer, image.width * image.height * 4);
     const result = new Uint8ClampedArray(resultView);
diff --git a/codecs/imagequant/imagequant.c b/codecs/imagequant/imagequant.c
index 538eac51..28032382 100644
--- a/codecs/imagequant/imagequant.c
+++ b/codecs/imagequant/imagequant.c
@@ -1,6 +1,8 @@
 #include "emscripten.h"
 #include <stdlib.h>
 #include <inttypes.h>
+#include <limits.h>
+#include <math.h>
 
 #include "libimagequant.h"
 
@@ -50,6 +52,169 @@ void quantize(uint8_t* image_buffer, int image_width, int image_height, int num_
   liq_attr_destroy(attr);
 }
 
+const liq_color zx_colors[] = {
+  {.a = 255, .r = 0, .g = 0, .b = 0},       // regular black
+  {.a = 255, .r = 0, .g = 0, .b = 215},     // regular blue
+  {.a = 255, .r = 215, .g = 0, .b = 0},     // regular red
+  {.a = 255, .r = 215, .g = 0, .b = 215},   // regular magenta
+  {.a = 255, .r = 0, .g = 215, .b = 0},     // regular green
+  {.a = 255, .r = 0, .g = 215, .b = 215},   // regular cyan
+  {.a = 255, .r = 215, .g = 215, .b = 0},   // regular yellow
+  {.a = 255, .r = 215, .g = 215, .b = 215}, // regular white
+  {.a = 255, .r = 0, .g = 0, .b = 255},     // bright blue
+  {.a = 255, .r = 255, .g = 0, .b = 0},     // bright red
+  {.a = 255, .r = 255, .g = 0, .b = 255},   // bright magenta
+  {.a = 255, .r = 0, .g = 255, .b = 0},     // bright green
+  {.a = 255, .r = 0, .g = 255, .b = 255},   // bright cyan
+  {.a = 255, .r = 255, .g = 255, .b = 0},   // bright yellow
+  {.a = 255, .r = 255, .g = 255, .b = 255}  // bright white
+};
+
+uint8_t block[8 * 8 * 4];
+
+/**
+ * The ZX has one bit per pixel, but can assign two colours to an 8x8 block. The two colours must
+ * both be 'regular' or 'bright'. Black exists as both regular and bright.
+ */
+EMSCRIPTEN_KEEPALIVE
+void zx_quantize(uint8_t* image_buffer, int image_width, int image_height, float dithering) {
+  int size = image_width * image_height;
+  int bytes_per_pixel = 4;
+  result = (int) malloc(size * bytes_per_pixel);
+  uint8_t* image8bit = (uint8_t*) malloc(8 * 8);
+
+  // For each 8x8 grid
+  for (int block_start_y = 0; block_start_y < image_height; block_start_y += 8) {
+    for (int block_start_x = 0; block_start_x < image_width; block_start_x += 8) {
+      int color_popularity[15] = {0};
+      int block_index = 0;
+      int block_width = 8;
+      int block_height = 8;
+
+      // If the block hangs off the right/bottom of the image dimensions, make it smaller to fit.
+      if (block_start_y + block_height > image_height) {
+        block_height = image_height - block_start_y;
+      }
+
+      if (block_start_x + block_width > image_width) {
+        block_width = image_width - block_start_x;
+      }
+
+      // For each pixel in that block:
+      for (int y = block_start_y; y < block_start_y + block_height; y++) {
+        for (int x = block_start_x; x < block_start_x + block_width; x++) {
+          int pixel_start = (y * image_width * bytes_per_pixel) + (x * bytes_per_pixel);
+          int smallest_distance = INT_MAX;
+          int winning_index = -1;
+
+          // Copy pixel data for quantizing later
+          block[block_index++] = image_buffer[pixel_start];
+          block[block_index++] = image_buffer[pixel_start + 1];
+          block[block_index++] = image_buffer[pixel_start + 2];
+          block[block_index++] = image_buffer[pixel_start + 3];
+
+          // Which zx color is this pixel closest to?
+          for (int color_index = 0; color_index < 15; color_index++) {
+            liq_color color = zx_colors[color_index];
+
+            // Using Euclidean distance. LibQuant has better methods, but it requires conversion to
+            // LAB, so I don't think it's worth it.
+            int distance =
+              pow(color.r - image_buffer[pixel_start + 0], 2) +
+              pow(color.g - image_buffer[pixel_start + 1], 2) +
+              pow(color.b - image_buffer[pixel_start + 2], 2);
+
+            if (distance < smallest_distance) {
+              winning_index = color_index;
+              smallest_distance = distance;
+            }
+          }
+          color_popularity[winning_index]++;
+        }
+      }
+
+      // Get the three most popular colours for the block.
+      int first_color_index = 0;
+      int second_color_index = 0;
+      int third_color_index = 0;
+      int highest_popularity = -1;
+      int second_highest_popularity = -1;
+      int third_highest_popularity = -1;
+
+      for (int color_index = 0; color_index < 15; color_index++) {
+        if (color_popularity[color_index] > highest_popularity) {
+          // Store this as the most popular pixel, and demote the current values:
+          third_color_index = second_color_index;
+          third_highest_popularity = second_highest_popularity;
+          second_color_index = first_color_index;
+          second_highest_popularity = highest_popularity;
+          first_color_index = color_index;
+          highest_popularity = color_popularity[color_index];
+        } else if (color_popularity[color_index] > second_highest_popularity) {
+          third_color_index = second_color_index;
+          third_highest_popularity = second_highest_popularity;
+          second_color_index = color_index;
+          second_highest_popularity = color_popularity[color_index];
+        } else if (color_popularity[color_index] > third_highest_popularity) {
+          third_color_index = color_index;
+          third_highest_popularity = color_popularity[color_index];
+        }
+      }
+
+      // ZX images can't mix bright and regular colours, except black which appears in both.
+      // Resolve any conflict:
+      while (1) {
+        // If either colour is black, there's no conflict to resolve.
+        if (first_color_index != 0 && second_color_index != 0) {
+          if (first_color_index >= 8 && second_color_index < 8) {
+            // Make the second color bright
+            second_color_index = second_color_index + 7;
+          } else if (first_color_index < 8 && second_color_index >= 8) {
+            // Make the second color regular
+            second_color_index = second_color_index - 7;
+          }
+        }
+
+        // If, during conflict resolving, we now have two of the same colour (because we initially
+        // selected the bright & regular version of the same colour), retry again with the third
+        // most popular colour.
+        if (first_color_index == second_color_index) {
+          second_color_index = third_color_index;
+        } else break;
+      }
+
+      // Quantize
+      attr = liq_attr_create();
+      image = liq_image_create_rgba(attr, block, block_width, block_height, 0);
+      liq_set_max_colors(attr, 2);
+      liq_image_add_fixed_color(image, zx_colors[first_color_index]);
+      liq_image_add_fixed_color(image, zx_colors[second_color_index]);
+      liq_image_quantize(image, attr, &res);
+      liq_set_dithering_level(res, dithering);
+      liq_write_remapped_image(res, image, image8bit, size);
+      const liq_palette *pal = liq_get_palette(res);
+
+      // Turn palletted image back into an RGBA image, and write it into the full size result image.
+      for(int y = 0; y < block_height; y++) {
+        for(int x = 0; x < block_width; x++) {
+          int image8BitPos = y * block_width + x;
+          int resultStartPos = ((block_start_y + y) * bytes_per_pixel * image_width) + ((block_start_x + x) * bytes_per_pixel);
+          ((uint8_t*)result)[resultStartPos + 0] = pal->entries[image8bit[image8BitPos]].r;
+          ((uint8_t*)result)[resultStartPos + 1] = pal->entries[image8bit[image8BitPos]].g;
+          ((uint8_t*)result)[resultStartPos + 2] = pal->entries[image8bit[image8BitPos]].b;
+          ((uint8_t*)result)[resultStartPos + 3] = pal->entries[image8bit[image8BitPos]].a;
+        }
+      }
+
+      liq_result_destroy(res);
+      liq_image_destroy(image);
+      liq_attr_destroy(attr);
+    }
+  }
+
+  free(image8bit);
+}
+
 EMSCRIPTEN_KEEPALIVE
 void free_result() {
   free(result);
diff --git a/codecs/imagequant/imagequant.js b/codecs/imagequant/imagequant.js
index e67849d2..474c495e 100644
--- a/codecs/imagequant/imagequant.js
+++ b/codecs/imagequant/imagequant.js
@@ -1,7 +1,7 @@
 var imagequant = function(imagequant) {
   imagequant = imagequant || {};
 
-var Module=typeof imagequant!=="undefined"?imagequant:{};var moduleOverrides={};var key;for(key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}Module["arguments"]=[];Module["thisProgram"]="./this.program";Module["quit"]=(function(status,toThrow){throw toThrow});Module["preRun"]=[];Module["postRun"]=[];var ENVIRONMENT_IS_WEB=false;var ENVIRONMENT_IS_WORKER=false;var ENVIRONMENT_IS_NODE=false;var ENVIRONMENT_IS_SHELL=false;if(Module["ENVIRONMENT"]){if(Module["ENVIRONMENT"]==="WEB"){ENVIRONMENT_IS_WEB=true}else if(Module["ENVIRONMENT"]==="WORKER"){ENVIRONMENT_IS_WORKER=true}else if(Module["ENVIRONMENT"]==="NODE"){ENVIRONMENT_IS_NODE=true}else if(Module["ENVIRONMENT"]==="SHELL"){ENVIRONMENT_IS_SHELL=true}else{throw new Error("Module['ENVIRONMENT'] value is not valid. must be one of: WEB|WORKER|NODE|SHELL.")}}else{ENVIRONMENT_IS_WEB=typeof window==="object";ENVIRONMENT_IS_WORKER=typeof importScripts==="function";ENVIRONMENT_IS_NODE=typeof process==="object"&&typeof require==="function"&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER;ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER}if(ENVIRONMENT_IS_NODE){var nodeFS;var nodePath;Module["read"]=function shell_read(filename,binary){var ret;if(!nodeFS)nodeFS=require("fs");if(!nodePath)nodePath=require("path");filename=nodePath["normalize"](filename);ret=nodeFS["readFileSync"](filename);return binary?ret:ret.toString()};Module["readBinary"]=function readBinary(filename){var ret=Module["read"](filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}assert(ret.buffer);return ret};if(process["argv"].length>1){Module["thisProgram"]=process["argv"][1].replace(/\\/g,"/")}Module["arguments"]=process["argv"].slice(2);process["on"]("uncaughtException",(function(ex){if(!(ex instanceof ExitStatus)){throw ex}}));process["on"]("unhandledRejection",(function(reason,p){process["exit"](1)}));Module["inspect"]=(function(){return"[Emscripten Module object]"})}else if(ENVIRONMENT_IS_SHELL){if(typeof read!="undefined"){Module["read"]=function shell_read(f){return read(f)}}Module["readBinary"]=function readBinary(f){var data;if(typeof readbuffer==="function"){return new Uint8Array(readbuffer(f))}data=read(f,"binary");assert(typeof data==="object");return data};if(typeof scriptArgs!="undefined"){Module["arguments"]=scriptArgs}else if(typeof arguments!="undefined"){Module["arguments"]=arguments}if(typeof quit==="function"){Module["quit"]=(function(status,toThrow){quit(status)})}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){Module["read"]=function shell_read(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.send(null);return xhr.responseText};if(ENVIRONMENT_IS_WORKER){Module["readBinary"]=function readBinary(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}Module["readAsync"]=function readAsync(url,onload,onerror){var xhr=new XMLHttpRequest;xhr.open("GET",url,true);xhr.responseType="arraybuffer";xhr.onload=function xhr_onload(){if(xhr.status==200||xhr.status==0&&xhr.response){onload(xhr.response);return}onerror()};xhr.onerror=onerror;xhr.send(null)};if(typeof arguments!="undefined"){Module["arguments"]=arguments}Module["setWindowTitle"]=(function(title){document.title=title})}Module["print"]=typeof console!=="undefined"?console.log.bind(console):typeof print!=="undefined"?print:null;Module["printErr"]=typeof printErr!=="undefined"?printErr:typeof console!=="undefined"&&console.warn.bind(console)||Module["print"];Module.print=Module["print"];Module.printErr=Module["printErr"];for(key in moduleOverrides){if(moduleOverrides.hasOwnProperty(key)){Module[key]=moduleOverrides[key]}}moduleOverrides=undefined;var STACK_ALIGN=16;function staticAlloc(size){assert(!staticSealed);var ret=STATICTOP;STATICTOP=STATICTOP+size+15&-16;return ret}function alignMemory(size,factor){if(!factor)factor=STACK_ALIGN;var ret=size=Math.ceil(size/factor)*factor;return ret}var functionPointers=new Array(0);var GLOBAL_BASE=1024;var ABORT=0;var EXITSTATUS=0;function assert(condition,text){if(!condition){abort("Assertion failed: "+text)}}function getCFunc(ident){var func=Module["_"+ident];assert(func,"Cannot call unknown function "+ident+", make sure it is exported");return func}var JSfuncs={"stackSave":(function(){stackSave()}),"stackRestore":(function(){stackRestore()}),"arrayToC":(function(arr){var ret=stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret}),"stringToC":(function(str){var ret=0;if(str!==null&&str!==undefined&&str!==0){var len=(str.length<<2)+1;ret=stackAlloc(len);stringToUTF8(str,ret,len)}return ret})};var toC={"string":JSfuncs["stringToC"],"array":JSfuncs["arrayToC"]};function ccall(ident,returnType,argTypes,args,opts){var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=stackSave();cArgs[i]=converter(args[i])}else{cArgs[i]=args[i]}}}var ret=func.apply(null,cArgs);if(returnType==="string")ret=Pointer_stringify(ret);if(stack!==0){stackRestore(stack)}return ret}function cwrap(ident,returnType,argTypes){argTypes=argTypes||[];var cfunc=getCFunc(ident);var numericArgs=argTypes.every((function(type){return type==="number"}));var numericRet=returnType!=="string";if(numericRet&&numericArgs){return cfunc}return(function(){return ccall(ident,returnType,argTypes,arguments)})}function Pointer_stringify(ptr,length){if(length===0||!ptr)return"";var hasUtf=0;var t;var i=0;while(1){t=HEAPU8[ptr+i>>0];hasUtf|=t;if(t==0&&!length)break;i++;if(length&&i==length)break}if(!length)length=i;var ret="";if(hasUtf<128){var MAX_CHUNK=1024;var curr;while(length>0){curr=String.fromCharCode.apply(String,HEAPU8.subarray(ptr,ptr+Math.min(length,MAX_CHUNK)));ret=ret?ret+curr:curr;ptr+=MAX_CHUNK;length-=MAX_CHUNK}return ret}return UTF8ToString(ptr)}var UTF8Decoder=typeof TextDecoder!=="undefined"?new TextDecoder("utf8"):undefined;function UTF8ArrayToString(u8Array,idx){var endPtr=idx;while(u8Array[endPtr])++endPtr;if(endPtr-idx>16&&u8Array.subarray&&UTF8Decoder){return UTF8Decoder.decode(u8Array.subarray(idx,endPtr))}else{var u0,u1,u2,u3,u4,u5;var str="";while(1){u0=u8Array[idx++];if(!u0)return str;if(!(u0&128)){str+=String.fromCharCode(u0);continue}u1=u8Array[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}u2=u8Array[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{u3=u8Array[idx++]&63;if((u0&248)==240){u0=(u0&7)<<18|u1<<12|u2<<6|u3}else{u4=u8Array[idx++]&63;if((u0&252)==248){u0=(u0&3)<<24|u1<<18|u2<<12|u3<<6|u4}else{u5=u8Array[idx++]&63;u0=(u0&1)<<30|u1<<24|u2<<18|u3<<12|u4<<6|u5}}}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}}}function UTF8ToString(ptr){return UTF8ArrayToString(HEAPU8,ptr)}function stringToUTF8Array(str,outU8Array,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127){if(outIdx>=endIdx)break;outU8Array[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;outU8Array[outIdx++]=192|u>>6;outU8Array[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;outU8Array[outIdx++]=224|u>>12;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=2097151){if(outIdx+3>=endIdx)break;outU8Array[outIdx++]=240|u>>18;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=67108863){if(outIdx+4>=endIdx)break;outU8Array[outIdx++]=248|u>>24;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else{if(outIdx+5>=endIdx)break;outU8Array[outIdx++]=252|u>>30;outU8Array[outIdx++]=128|u>>24&63;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}}outU8Array[outIdx]=0;return outIdx-startIdx}function stringToUTF8(str,outPtr,maxBytesToWrite){return stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite)}var UTF16Decoder=typeof TextDecoder!=="undefined"?new TextDecoder("utf-16le"):undefined;var WASM_PAGE_SIZE=65536;var ASMJS_PAGE_SIZE=16777216;var MIN_TOTAL_MEMORY=16777216;function alignUp(x,multiple){if(x%multiple>0){x+=multiple-x%multiple}return x}var buffer,HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,HEAPF64;function updateGlobalBuffer(buf){Module["buffer"]=buffer=buf}function updateGlobalBufferViews(){Module["HEAP8"]=HEAP8=new Int8Array(buffer);Module["HEAP16"]=HEAP16=new Int16Array(buffer);Module["HEAP32"]=HEAP32=new Int32Array(buffer);Module["HEAPU8"]=HEAPU8=new Uint8Array(buffer);Module["HEAPU16"]=HEAPU16=new Uint16Array(buffer);Module["HEAPU32"]=HEAPU32=new Uint32Array(buffer);Module["HEAPF32"]=HEAPF32=new Float32Array(buffer);Module["HEAPF64"]=HEAPF64=new Float64Array(buffer)}var STATIC_BASE,STATICTOP,staticSealed;var STACK_BASE,STACKTOP,STACK_MAX;var DYNAMIC_BASE,DYNAMICTOP_PTR;STATIC_BASE=STATICTOP=STACK_BASE=STACKTOP=STACK_MAX=DYNAMIC_BASE=DYNAMICTOP_PTR=0;staticSealed=false;function abortOnCannotGrowMemory(){abort("Cannot enlarge memory arrays. Either (1) compile with  -s TOTAL_MEMORY=X  with X higher than the current value "+TOTAL_MEMORY+", (2) compile with  -s ALLOW_MEMORY_GROWTH=1  which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with  -s ABORTING_MALLOC=0 ")}if(!Module["reallocBuffer"])Module["reallocBuffer"]=(function(size){var ret;try{if(ArrayBuffer.transfer){ret=ArrayBuffer.transfer(buffer,size)}else{var oldHEAP8=HEAP8;ret=new ArrayBuffer(size);var temp=new Int8Array(ret);temp.set(oldHEAP8)}}catch(e){return false}var success=_emscripten_replace_memory(ret);if(!success)return false;return ret});function enlargeMemory(){var PAGE_MULTIPLE=Module["usingWasm"]?WASM_PAGE_SIZE:ASMJS_PAGE_SIZE;var LIMIT=2147483648-PAGE_MULTIPLE;if(HEAP32[DYNAMICTOP_PTR>>2]>LIMIT){return false}var OLD_TOTAL_MEMORY=TOTAL_MEMORY;TOTAL_MEMORY=Math.max(TOTAL_MEMORY,MIN_TOTAL_MEMORY);while(TOTAL_MEMORY<HEAP32[DYNAMICTOP_PTR>>2]){if(TOTAL_MEMORY<=536870912){TOTAL_MEMORY=alignUp(2*TOTAL_MEMORY,PAGE_MULTIPLE)}else{TOTAL_MEMORY=Math.min(alignUp((3*TOTAL_MEMORY+2147483648)/4,PAGE_MULTIPLE),LIMIT)}}var replacement=Module["reallocBuffer"](TOTAL_MEMORY);if(!replacement||replacement.byteLength!=TOTAL_MEMORY){TOTAL_MEMORY=OLD_TOTAL_MEMORY;return false}updateGlobalBuffer(replacement);updateGlobalBufferViews();return true}var byteLength;try{byteLength=Function.prototype.call.bind(Object.getOwnPropertyDescriptor(ArrayBuffer.prototype,"byteLength").get);byteLength(new ArrayBuffer(4))}catch(e){byteLength=(function(buffer){return buffer.byteLength})}var TOTAL_STACK=Module["TOTAL_STACK"]||5242880;var TOTAL_MEMORY=Module["TOTAL_MEMORY"]||16777216;if(TOTAL_MEMORY<TOTAL_STACK)Module.printErr("TOTAL_MEMORY should be larger than TOTAL_STACK, was "+TOTAL_MEMORY+"! (TOTAL_STACK="+TOTAL_STACK+")");if(Module["buffer"]){buffer=Module["buffer"]}else{if(typeof WebAssembly==="object"&&typeof WebAssembly.Memory==="function"){Module["wasmMemory"]=new WebAssembly.Memory({"initial":TOTAL_MEMORY/WASM_PAGE_SIZE});buffer=Module["wasmMemory"].buffer}else{buffer=new ArrayBuffer(TOTAL_MEMORY)}Module["buffer"]=buffer}updateGlobalBufferViews();function getTotalMemory(){return TOTAL_MEMORY}HEAP32[0]=1668509029;HEAP16[1]=25459;if(HEAPU8[2]!==115||HEAPU8[3]!==99)throw"Runtime error: expected the system to be little-endian!";function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback();continue}var func=callback.func;if(typeof func==="number"){if(callback.arg===undefined){Module["dynCall_v"](func)}else{Module["dynCall_vi"](func,callback.arg)}}else{func(callback.arg===undefined?null:callback.arg)}}}var __ATPRERUN__=[];var __ATINIT__=[];var __ATMAIN__=[];var __ATEXIT__=[];var __ATPOSTRUN__=[];var runtimeInitialized=false;var runtimeExited=false;function preRun(){if(Module["preRun"]){if(typeof Module["preRun"]=="function")Module["preRun"]=[Module["preRun"]];while(Module["preRun"].length){addOnPreRun(Module["preRun"].shift())}}callRuntimeCallbacks(__ATPRERUN__)}function ensureInitRuntime(){if(runtimeInitialized)return;runtimeInitialized=true;callRuntimeCallbacks(__ATINIT__)}function preMain(){callRuntimeCallbacks(__ATMAIN__)}function exitRuntime(){callRuntimeCallbacks(__ATEXIT__);runtimeExited=true}function postRun(){if(Module["postRun"]){if(typeof Module["postRun"]=="function")Module["postRun"]=[Module["postRun"]];while(Module["postRun"].length){addOnPostRun(Module["postRun"].shift())}}callRuntimeCallbacks(__ATPOSTRUN__)}function addOnPreRun(cb){__ATPRERUN__.unshift(cb)}function addOnPostRun(cb){__ATPOSTRUN__.unshift(cb)}function writeArrayToMemory(array,buffer){HEAP8.set(array,buffer)}var Math_abs=Math.abs;var Math_cos=Math.cos;var Math_sin=Math.sin;var Math_tan=Math.tan;var Math_acos=Math.acos;var Math_asin=Math.asin;var Math_atan=Math.atan;var Math_atan2=Math.atan2;var Math_exp=Math.exp;var Math_log=Math.log;var Math_sqrt=Math.sqrt;var Math_ceil=Math.ceil;var Math_floor=Math.floor;var Math_pow=Math.pow;var Math_imul=Math.imul;var Math_fround=Math.fround;var Math_round=Math.round;var Math_min=Math.min;var Math_max=Math.max;var Math_clz32=Math.clz32;var Math_trunc=Math.trunc;var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;function addRunDependency(id){runDependencies++;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}}function removeRunDependency(id){runDependencies--;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}if(runDependencies==0){if(runDependencyWatcher!==null){clearInterval(runDependencyWatcher);runDependencyWatcher=null}if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}}Module["preloadedImages"]={};Module["preloadedAudios"]={};var dataURIPrefix="data:application/octet-stream;base64,";function isDataURI(filename){return String.prototype.startsWith?filename.startsWith(dataURIPrefix):filename.indexOf(dataURIPrefix)===0}function integrateWasmJS(){var wasmTextFile="imagequant.wast";var wasmBinaryFile="imagequant.wasm";var asmjsCodeFile="imagequant.temp.asm.js";if(typeof Module["locateFile"]==="function"){if(!isDataURI(wasmTextFile)){wasmTextFile=Module["locateFile"](wasmTextFile)}if(!isDataURI(wasmBinaryFile)){wasmBinaryFile=Module["locateFile"](wasmBinaryFile)}if(!isDataURI(asmjsCodeFile)){asmjsCodeFile=Module["locateFile"](asmjsCodeFile)}}var wasmPageSize=64*1024;var info={"global":null,"env":null,"asm2wasm":{"f64-rem":(function(x,y){return x%y}),"debugger":(function(){debugger})},"parent":Module};var exports=null;function mergeMemory(newBuffer){var oldBuffer=Module["buffer"];if(newBuffer.byteLength<oldBuffer.byteLength){Module["printErr"]("the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here")}var oldView=new Int8Array(oldBuffer);var newView=new Int8Array(newBuffer);newView.set(oldView);updateGlobalBuffer(newBuffer);updateGlobalBufferViews()}function fixImports(imports){return imports}function getBinary(){try{if(Module["wasmBinary"]){return new Uint8Array(Module["wasmBinary"])}if(Module["readBinary"]){return Module["readBinary"](wasmBinaryFile)}else{throw"on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)"}}catch(err){abort(err)}}function getBinaryPromise(){if(!Module["wasmBinary"]&&(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER)&&typeof fetch==="function"){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 new Promise((function(resolve,reject){resolve(getBinary())}))}function doNativeWasm(global,env,providedBuffer){if(typeof WebAssembly!=="object"){Module["printErr"]("no native wasm support detected");return false}if(!(Module["wasmMemory"]instanceof WebAssembly.Memory)){Module["printErr"]("no native wasm Memory in use");return false}env["memory"]=Module["wasmMemory"];info["global"]={"NaN":NaN,"Infinity":Infinity};info["global.Math"]=Math;info["env"]=env;function receiveInstance(instance,module){exports=instance.exports;if(exports.memory)mergeMemory(exports.memory);Module["asm"]=exports;Module["usingWasm"]=true;removeRunDependency("wasm-instantiate")}addRunDependency("wasm-instantiate");if(Module["instantiateWasm"]){try{return Module["instantiateWasm"](info,receiveInstance)}catch(e){Module["printErr"]("Module.instantiateWasm callback failed with error: "+e);return false}}function receiveInstantiatedSource(output){receiveInstance(output["instance"],output["module"])}function instantiateArrayBuffer(receiver){getBinaryPromise().then((function(binary){return WebAssembly.instantiate(binary,info)})).then(receiver).catch((function(reason){Module["printErr"]("failed to asynchronously prepare wasm: "+reason);abort(reason)}))}if(!Module["wasmBinary"]&&typeof WebAssembly.instantiateStreaming==="function"&&!isDataURI(wasmBinaryFile)&&typeof fetch==="function"){WebAssembly.instantiateStreaming(fetch(wasmBinaryFile,{credentials:"same-origin"}),info).then(receiveInstantiatedSource).catch((function(reason){Module["printErr"]("wasm streaming compile failed: "+reason);Module["printErr"]("falling back to ArrayBuffer instantiation");instantiateArrayBuffer(receiveInstantiatedSource)}))}else{instantiateArrayBuffer(receiveInstantiatedSource)}return{}}Module["asmPreload"]=Module["asm"];var asmjsReallocBuffer=Module["reallocBuffer"];var wasmReallocBuffer=(function(size){var PAGE_MULTIPLE=Module["usingWasm"]?WASM_PAGE_SIZE:ASMJS_PAGE_SIZE;size=alignUp(size,PAGE_MULTIPLE);var old=Module["buffer"];var oldSize=old.byteLength;if(Module["usingWasm"]){try{var result=Module["wasmMemory"].grow((size-oldSize)/wasmPageSize);if(result!==(-1|0)){return Module["buffer"]=Module["wasmMemory"].buffer}else{return null}}catch(e){return null}}});Module["reallocBuffer"]=(function(size){if(finalMethod==="asmjs"){return asmjsReallocBuffer(size)}else{return wasmReallocBuffer(size)}});var finalMethod="";Module["asm"]=(function(global,env,providedBuffer){env=fixImports(env);if(!env["table"]){var TABLE_SIZE=Module["wasmTableSize"];if(TABLE_SIZE===undefined)TABLE_SIZE=1024;var MAX_TABLE_SIZE=Module["wasmMaxTableSize"];if(typeof WebAssembly==="object"&&typeof WebAssembly.Table==="function"){if(MAX_TABLE_SIZE!==undefined){env["table"]=new WebAssembly.Table({"initial":TABLE_SIZE,"maximum":MAX_TABLE_SIZE,"element":"anyfunc"})}else{env["table"]=new WebAssembly.Table({"initial":TABLE_SIZE,element:"anyfunc"})}}else{env["table"]=new Array(TABLE_SIZE)}Module["wasmTable"]=env["table"]}if(!env["memoryBase"]){env["memoryBase"]=Module["STATIC_BASE"]}if(!env["tableBase"]){env["tableBase"]=0}var exports;exports=doNativeWasm(global,env,providedBuffer);if(!exports)abort("no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods");return exports})}integrateWasmJS();STATIC_BASE=GLOBAL_BASE;STATICTOP=STATIC_BASE+5904;__ATINIT__.push();var STATIC_BUMP=5904;Module["STATIC_BASE"]=STATIC_BASE;Module["STATIC_BUMP"]=STATIC_BUMP;STATICTOP+=16;function ___assert_fail(condition,filename,line,func){abort("Assertion failed: "+Pointer_stringify(condition)+", at: "+[filename?Pointer_stringify(filename):"unknown filename",line,func?Pointer_stringify(func):"unknown function"])}var SYSCALLS={varargs:0,get:(function(varargs){SYSCALLS.varargs+=4;var ret=HEAP32[SYSCALLS.varargs-4>>2];return ret}),getStr:(function(){var ret=Pointer_stringify(SYSCALLS.get());return ret}),get64:(function(){var low=SYSCALLS.get(),high=SYSCALLS.get();if(low>=0)assert(high===0);else assert(high===-1);return low}),getZero:(function(){assert(SYSCALLS.get()===0)})};function ___syscall140(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),offset_high=SYSCALLS.get(),offset_low=SYSCALLS.get(),result=SYSCALLS.get(),whence=SYSCALLS.get();var offset=offset_low;FS.llseek(stream,offset,whence);HEAP32[result>>2]=stream.position;if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall146(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.get(),iov=SYSCALLS.get(),iovcnt=SYSCALLS.get();var ret=0;if(!___syscall146.buffers){___syscall146.buffers=[null,[],[]];___syscall146.printChar=(function(stream,curr){var buffer=___syscall146.buffers[stream];assert(buffer);if(curr===0||curr===10){(stream===1?Module["print"]:Module["printErr"])(UTF8ArrayToString(buffer,0));buffer.length=0}else{buffer.push(curr)}})}for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];for(var j=0;j<len;j++){___syscall146.printChar(stream,HEAPU8[ptr+j])}ret+=len}return ret}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall6(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD();FS.close(stream);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function _abort(){Module["abort"]()}function _llvm_stackrestore(p){var self=_llvm_stacksave;var ret=self.LLVM_SAVEDSTACKS[p];self.LLVM_SAVEDSTACKS.splice(p,1);stackRestore(ret)}function _llvm_stacksave(){var self=_llvm_stacksave;if(!self.LLVM_SAVEDSTACKS){self.LLVM_SAVEDSTACKS=[]}self.LLVM_SAVEDSTACKS.push(stackSave());return self.LLVM_SAVEDSTACKS.length-1}function _emscripten_memcpy_big(dest,src,num){HEAPU8.set(HEAPU8.subarray(src,src+num),dest);return dest}function ___setErrNo(value){if(Module["___errno_location"])HEAP32[Module["___errno_location"]()>>2]=value;return value}DYNAMICTOP_PTR=staticAlloc(4);STACK_BASE=STACKTOP=alignMemory(STATICTOP);STACK_MAX=STACK_BASE+TOTAL_STACK;DYNAMIC_BASE=alignMemory(STACK_MAX);HEAP32[DYNAMICTOP_PTR>>2]=DYNAMIC_BASE;staticSealed=true;Module["wasmTableSize"]=22;Module["wasmMaxTableSize"]=22;Module.asmGlobalArg={};Module.asmLibraryArg={"abort":abort,"enlargeMemory":enlargeMemory,"getTotalMemory":getTotalMemory,"abortOnCannotGrowMemory":abortOnCannotGrowMemory,"___assert_fail":___assert_fail,"___setErrNo":___setErrNo,"___syscall140":___syscall140,"___syscall146":___syscall146,"___syscall6":___syscall6,"_abort":_abort,"_emscripten_memcpy_big":_emscripten_memcpy_big,"_llvm_stackrestore":_llvm_stackrestore,"_llvm_stacksave":_llvm_stacksave,"DYNAMICTOP_PTR":DYNAMICTOP_PTR,"STACKTOP":STACKTOP};var asm=Module["asm"](Module.asmGlobalArg,Module.asmLibraryArg,buffer);Module["asm"]=asm;var ___errno_location=Module["___errno_location"]=(function(){return Module["asm"]["___errno_location"].apply(null,arguments)});var _create_buffer=Module["_create_buffer"]=(function(){return Module["asm"]["_create_buffer"].apply(null,arguments)});var _destroy_buffer=Module["_destroy_buffer"]=(function(){return Module["asm"]["_destroy_buffer"].apply(null,arguments)});var _emscripten_replace_memory=Module["_emscripten_replace_memory"]=(function(){return Module["asm"]["_emscripten_replace_memory"].apply(null,arguments)});var _free_result=Module["_free_result"]=(function(){return Module["asm"]["_free_result"].apply(null,arguments)});var _get_result_pointer=Module["_get_result_pointer"]=(function(){return Module["asm"]["_get_result_pointer"].apply(null,arguments)});var _quantize=Module["_quantize"]=(function(){return Module["asm"]["_quantize"].apply(null,arguments)});var _version=Module["_version"]=(function(){return Module["asm"]["_version"].apply(null,arguments)});var stackAlloc=Module["stackAlloc"]=(function(){return Module["asm"]["stackAlloc"].apply(null,arguments)});var stackRestore=Module["stackRestore"]=(function(){return Module["asm"]["stackRestore"].apply(null,arguments)});var stackSave=Module["stackSave"]=(function(){return Module["asm"]["stackSave"].apply(null,arguments)});var dynCall_vi=Module["dynCall_vi"]=(function(){return Module["asm"]["dynCall_vi"].apply(null,arguments)});Module["asm"]=asm;Module["cwrap"]=cwrap;Module["then"]=(function(func){if(Module["calledRun"]){func(Module)}else{var old=Module["onRuntimeInitialized"];Module["onRuntimeInitialized"]=(function(){if(old)old();func(Module)})}return Module});function ExitStatus(status){this.name="ExitStatus";this.message="Program terminated with exit("+status+")";this.status=status}ExitStatus.prototype=new Error;ExitStatus.prototype.constructor=ExitStatus;var initialStackTop;dependenciesFulfilled=function runCaller(){if(!Module["calledRun"])run();if(!Module["calledRun"])dependenciesFulfilled=runCaller};function run(args){args=args||Module["arguments"];if(runDependencies>0){return}preRun();if(runDependencies>0)return;if(Module["calledRun"])return;function doRun(){if(Module["calledRun"])return;Module["calledRun"]=true;if(ABORT)return;ensureInitRuntime();preMain();if(Module["onRuntimeInitialized"])Module["onRuntimeInitialized"]();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout((function(){setTimeout((function(){Module["setStatus"]("")}),1);doRun()}),1)}else{doRun()}}Module["run"]=run;function exit(status,implicit){if(implicit&&Module["noExitRuntime"]&&status===0){return}if(Module["noExitRuntime"]){}else{ABORT=true;EXITSTATUS=status;STACKTOP=initialStackTop;exitRuntime();if(Module["onExit"])Module["onExit"](status)}if(ENVIRONMENT_IS_NODE){process["exit"](status)}Module["quit"](status,new ExitStatus(status))}Module["exit"]=exit;function abort(what){if(Module["onAbort"]){Module["onAbort"](what)}if(what!==undefined){Module.print(what);Module.printErr(what);what=JSON.stringify(what)}else{what=""}ABORT=true;EXITSTATUS=1;throw"abort("+what+"). Build with -s ASSERTIONS=1 for more info."}Module["abort"]=abort;if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].pop()()}}Module["noExitRuntime"]=true;run()
+var Module=typeof imagequant!=="undefined"?imagequant:{};var moduleOverrides={};var key;for(key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}Module["arguments"]=[];Module["thisProgram"]="./this.program";Module["quit"]=(function(status,toThrow){throw toThrow});Module["preRun"]=[];Module["postRun"]=[];var ENVIRONMENT_IS_WEB=false;var ENVIRONMENT_IS_WORKER=false;var ENVIRONMENT_IS_NODE=false;var ENVIRONMENT_IS_SHELL=false;if(Module["ENVIRONMENT"]){if(Module["ENVIRONMENT"]==="WEB"){ENVIRONMENT_IS_WEB=true}else if(Module["ENVIRONMENT"]==="WORKER"){ENVIRONMENT_IS_WORKER=true}else if(Module["ENVIRONMENT"]==="NODE"){ENVIRONMENT_IS_NODE=true}else if(Module["ENVIRONMENT"]==="SHELL"){ENVIRONMENT_IS_SHELL=true}else{throw new Error("Module['ENVIRONMENT'] value is not valid. must be one of: WEB|WORKER|NODE|SHELL.")}}else{ENVIRONMENT_IS_WEB=typeof window==="object";ENVIRONMENT_IS_WORKER=typeof importScripts==="function";ENVIRONMENT_IS_NODE=typeof process==="object"&&typeof require==="function"&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER;ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER}if(ENVIRONMENT_IS_NODE){var nodeFS;var nodePath;Module["read"]=function shell_read(filename,binary){var ret;if(!nodeFS)nodeFS=require("fs");if(!nodePath)nodePath=require("path");filename=nodePath["normalize"](filename);ret=nodeFS["readFileSync"](filename);return binary?ret:ret.toString()};Module["readBinary"]=function readBinary(filename){var ret=Module["read"](filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}assert(ret.buffer);return ret};if(process["argv"].length>1){Module["thisProgram"]=process["argv"][1].replace(/\\/g,"/")}Module["arguments"]=process["argv"].slice(2);process["on"]("uncaughtException",(function(ex){if(!(ex instanceof ExitStatus)){throw ex}}));process["on"]("unhandledRejection",(function(reason,p){process["exit"](1)}));Module["inspect"]=(function(){return"[Emscripten Module object]"})}else if(ENVIRONMENT_IS_SHELL){if(typeof read!="undefined"){Module["read"]=function shell_read(f){return read(f)}}Module["readBinary"]=function readBinary(f){var data;if(typeof readbuffer==="function"){return new Uint8Array(readbuffer(f))}data=read(f,"binary");assert(typeof data==="object");return data};if(typeof scriptArgs!="undefined"){Module["arguments"]=scriptArgs}else if(typeof arguments!="undefined"){Module["arguments"]=arguments}if(typeof quit==="function"){Module["quit"]=(function(status,toThrow){quit(status)})}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){Module["read"]=function shell_read(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.send(null);return xhr.responseText};if(ENVIRONMENT_IS_WORKER){Module["readBinary"]=function readBinary(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}Module["readAsync"]=function readAsync(url,onload,onerror){var xhr=new XMLHttpRequest;xhr.open("GET",url,true);xhr.responseType="arraybuffer";xhr.onload=function xhr_onload(){if(xhr.status==200||xhr.status==0&&xhr.response){onload(xhr.response);return}onerror()};xhr.onerror=onerror;xhr.send(null)};if(typeof arguments!="undefined"){Module["arguments"]=arguments}Module["setWindowTitle"]=(function(title){document.title=title})}Module["print"]=typeof console!=="undefined"?console.log.bind(console):typeof print!=="undefined"?print:null;Module["printErr"]=typeof printErr!=="undefined"?printErr:typeof console!=="undefined"&&console.warn.bind(console)||Module["print"];Module.print=Module["print"];Module.printErr=Module["printErr"];for(key in moduleOverrides){if(moduleOverrides.hasOwnProperty(key)){Module[key]=moduleOverrides[key]}}moduleOverrides=undefined;var STACK_ALIGN=16;function staticAlloc(size){assert(!staticSealed);var ret=STATICTOP;STATICTOP=STATICTOP+size+15&-16;return ret}function alignMemory(size,factor){if(!factor)factor=STACK_ALIGN;var ret=size=Math.ceil(size/factor)*factor;return ret}var functionPointers=new Array(0);var GLOBAL_BASE=1024;var ABORT=0;var EXITSTATUS=0;function assert(condition,text){if(!condition){abort("Assertion failed: "+text)}}function getCFunc(ident){var func=Module["_"+ident];assert(func,"Cannot call unknown function "+ident+", make sure it is exported");return func}var JSfuncs={"stackSave":(function(){stackSave()}),"stackRestore":(function(){stackRestore()}),"arrayToC":(function(arr){var ret=stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret}),"stringToC":(function(str){var ret=0;if(str!==null&&str!==undefined&&str!==0){var len=(str.length<<2)+1;ret=stackAlloc(len);stringToUTF8(str,ret,len)}return ret})};var toC={"string":JSfuncs["stringToC"],"array":JSfuncs["arrayToC"]};function ccall(ident,returnType,argTypes,args,opts){var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=stackSave();cArgs[i]=converter(args[i])}else{cArgs[i]=args[i]}}}var ret=func.apply(null,cArgs);if(returnType==="string")ret=Pointer_stringify(ret);if(stack!==0){stackRestore(stack)}return ret}function cwrap(ident,returnType,argTypes){argTypes=argTypes||[];var cfunc=getCFunc(ident);var numericArgs=argTypes.every((function(type){return type==="number"}));var numericRet=returnType!=="string";if(numericRet&&numericArgs){return cfunc}return(function(){return ccall(ident,returnType,argTypes,arguments)})}function Pointer_stringify(ptr,length){if(length===0||!ptr)return"";var hasUtf=0;var t;var i=0;while(1){t=HEAPU8[ptr+i>>0];hasUtf|=t;if(t==0&&!length)break;i++;if(length&&i==length)break}if(!length)length=i;var ret="";if(hasUtf<128){var MAX_CHUNK=1024;var curr;while(length>0){curr=String.fromCharCode.apply(String,HEAPU8.subarray(ptr,ptr+Math.min(length,MAX_CHUNK)));ret=ret?ret+curr:curr;ptr+=MAX_CHUNK;length-=MAX_CHUNK}return ret}return UTF8ToString(ptr)}var UTF8Decoder=typeof TextDecoder!=="undefined"?new TextDecoder("utf8"):undefined;function UTF8ArrayToString(u8Array,idx){var endPtr=idx;while(u8Array[endPtr])++endPtr;if(endPtr-idx>16&&u8Array.subarray&&UTF8Decoder){return UTF8Decoder.decode(u8Array.subarray(idx,endPtr))}else{var u0,u1,u2,u3,u4,u5;var str="";while(1){u0=u8Array[idx++];if(!u0)return str;if(!(u0&128)){str+=String.fromCharCode(u0);continue}u1=u8Array[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}u2=u8Array[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{u3=u8Array[idx++]&63;if((u0&248)==240){u0=(u0&7)<<18|u1<<12|u2<<6|u3}else{u4=u8Array[idx++]&63;if((u0&252)==248){u0=(u0&3)<<24|u1<<18|u2<<12|u3<<6|u4}else{u5=u8Array[idx++]&63;u0=(u0&1)<<30|u1<<24|u2<<18|u3<<12|u4<<6|u5}}}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}}}function UTF8ToString(ptr){return UTF8ArrayToString(HEAPU8,ptr)}function stringToUTF8Array(str,outU8Array,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127){if(outIdx>=endIdx)break;outU8Array[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;outU8Array[outIdx++]=192|u>>6;outU8Array[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;outU8Array[outIdx++]=224|u>>12;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=2097151){if(outIdx+3>=endIdx)break;outU8Array[outIdx++]=240|u>>18;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=67108863){if(outIdx+4>=endIdx)break;outU8Array[outIdx++]=248|u>>24;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else{if(outIdx+5>=endIdx)break;outU8Array[outIdx++]=252|u>>30;outU8Array[outIdx++]=128|u>>24&63;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}}outU8Array[outIdx]=0;return outIdx-startIdx}function stringToUTF8(str,outPtr,maxBytesToWrite){return stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite)}var UTF16Decoder=typeof TextDecoder!=="undefined"?new TextDecoder("utf-16le"):undefined;var WASM_PAGE_SIZE=65536;var ASMJS_PAGE_SIZE=16777216;var MIN_TOTAL_MEMORY=16777216;function alignUp(x,multiple){if(x%multiple>0){x+=multiple-x%multiple}return x}var buffer,HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,HEAPF64;function updateGlobalBuffer(buf){Module["buffer"]=buffer=buf}function updateGlobalBufferViews(){Module["HEAP8"]=HEAP8=new Int8Array(buffer);Module["HEAP16"]=HEAP16=new Int16Array(buffer);Module["HEAP32"]=HEAP32=new Int32Array(buffer);Module["HEAPU8"]=HEAPU8=new Uint8Array(buffer);Module["HEAPU16"]=HEAPU16=new Uint16Array(buffer);Module["HEAPU32"]=HEAPU32=new Uint32Array(buffer);Module["HEAPF32"]=HEAPF32=new Float32Array(buffer);Module["HEAPF64"]=HEAPF64=new Float64Array(buffer)}var STATIC_BASE,STATICTOP,staticSealed;var STACK_BASE,STACKTOP,STACK_MAX;var DYNAMIC_BASE,DYNAMICTOP_PTR;STATIC_BASE=STATICTOP=STACK_BASE=STACKTOP=STACK_MAX=DYNAMIC_BASE=DYNAMICTOP_PTR=0;staticSealed=false;function abortOnCannotGrowMemory(){abort("Cannot enlarge memory arrays. Either (1) compile with  -s TOTAL_MEMORY=X  with X higher than the current value "+TOTAL_MEMORY+", (2) compile with  -s ALLOW_MEMORY_GROWTH=1  which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with  -s ABORTING_MALLOC=0 ")}if(!Module["reallocBuffer"])Module["reallocBuffer"]=(function(size){var ret;try{if(ArrayBuffer.transfer){ret=ArrayBuffer.transfer(buffer,size)}else{var oldHEAP8=HEAP8;ret=new ArrayBuffer(size);var temp=new Int8Array(ret);temp.set(oldHEAP8)}}catch(e){return false}var success=_emscripten_replace_memory(ret);if(!success)return false;return ret});function enlargeMemory(){var PAGE_MULTIPLE=Module["usingWasm"]?WASM_PAGE_SIZE:ASMJS_PAGE_SIZE;var LIMIT=2147483648-PAGE_MULTIPLE;if(HEAP32[DYNAMICTOP_PTR>>2]>LIMIT){return false}var OLD_TOTAL_MEMORY=TOTAL_MEMORY;TOTAL_MEMORY=Math.max(TOTAL_MEMORY,MIN_TOTAL_MEMORY);while(TOTAL_MEMORY<HEAP32[DYNAMICTOP_PTR>>2]){if(TOTAL_MEMORY<=536870912){TOTAL_MEMORY=alignUp(2*TOTAL_MEMORY,PAGE_MULTIPLE)}else{TOTAL_MEMORY=Math.min(alignUp((3*TOTAL_MEMORY+2147483648)/4,PAGE_MULTIPLE),LIMIT)}}var replacement=Module["reallocBuffer"](TOTAL_MEMORY);if(!replacement||replacement.byteLength!=TOTAL_MEMORY){TOTAL_MEMORY=OLD_TOTAL_MEMORY;return false}updateGlobalBuffer(replacement);updateGlobalBufferViews();return true}var byteLength;try{byteLength=Function.prototype.call.bind(Object.getOwnPropertyDescriptor(ArrayBuffer.prototype,"byteLength").get);byteLength(new ArrayBuffer(4))}catch(e){byteLength=(function(buffer){return buffer.byteLength})}var TOTAL_STACK=Module["TOTAL_STACK"]||5242880;var TOTAL_MEMORY=Module["TOTAL_MEMORY"]||16777216;if(TOTAL_MEMORY<TOTAL_STACK)Module.printErr("TOTAL_MEMORY should be larger than TOTAL_STACK, was "+TOTAL_MEMORY+"! (TOTAL_STACK="+TOTAL_STACK+")");if(Module["buffer"]){buffer=Module["buffer"]}else{if(typeof WebAssembly==="object"&&typeof WebAssembly.Memory==="function"){Module["wasmMemory"]=new WebAssembly.Memory({"initial":TOTAL_MEMORY/WASM_PAGE_SIZE});buffer=Module["wasmMemory"].buffer}else{buffer=new ArrayBuffer(TOTAL_MEMORY)}Module["buffer"]=buffer}updateGlobalBufferViews();function getTotalMemory(){return TOTAL_MEMORY}HEAP32[0]=1668509029;HEAP16[1]=25459;if(HEAPU8[2]!==115||HEAPU8[3]!==99)throw"Runtime error: expected the system to be little-endian!";function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback();continue}var func=callback.func;if(typeof func==="number"){if(callback.arg===undefined){Module["dynCall_v"](func)}else{Module["dynCall_vi"](func,callback.arg)}}else{func(callback.arg===undefined?null:callback.arg)}}}var __ATPRERUN__=[];var __ATINIT__=[];var __ATMAIN__=[];var __ATEXIT__=[];var __ATPOSTRUN__=[];var runtimeInitialized=false;var runtimeExited=false;function preRun(){if(Module["preRun"]){if(typeof Module["preRun"]=="function")Module["preRun"]=[Module["preRun"]];while(Module["preRun"].length){addOnPreRun(Module["preRun"].shift())}}callRuntimeCallbacks(__ATPRERUN__)}function ensureInitRuntime(){if(runtimeInitialized)return;runtimeInitialized=true;callRuntimeCallbacks(__ATINIT__)}function preMain(){callRuntimeCallbacks(__ATMAIN__)}function exitRuntime(){callRuntimeCallbacks(__ATEXIT__);runtimeExited=true}function postRun(){if(Module["postRun"]){if(typeof Module["postRun"]=="function")Module["postRun"]=[Module["postRun"]];while(Module["postRun"].length){addOnPostRun(Module["postRun"].shift())}}callRuntimeCallbacks(__ATPOSTRUN__)}function addOnPreRun(cb){__ATPRERUN__.unshift(cb)}function addOnPostRun(cb){__ATPOSTRUN__.unshift(cb)}function writeArrayToMemory(array,buffer){HEAP8.set(array,buffer)}var Math_abs=Math.abs;var Math_cos=Math.cos;var Math_sin=Math.sin;var Math_tan=Math.tan;var Math_acos=Math.acos;var Math_asin=Math.asin;var Math_atan=Math.atan;var Math_atan2=Math.atan2;var Math_exp=Math.exp;var Math_log=Math.log;var Math_sqrt=Math.sqrt;var Math_ceil=Math.ceil;var Math_floor=Math.floor;var Math_pow=Math.pow;var Math_imul=Math.imul;var Math_fround=Math.fround;var Math_round=Math.round;var Math_min=Math.min;var Math_max=Math.max;var Math_clz32=Math.clz32;var Math_trunc=Math.trunc;var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;function addRunDependency(id){runDependencies++;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}}function removeRunDependency(id){runDependencies--;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}if(runDependencies==0){if(runDependencyWatcher!==null){clearInterval(runDependencyWatcher);runDependencyWatcher=null}if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}}Module["preloadedImages"]={};Module["preloadedAudios"]={};var dataURIPrefix="data:application/octet-stream;base64,";function isDataURI(filename){return String.prototype.startsWith?filename.startsWith(dataURIPrefix):filename.indexOf(dataURIPrefix)===0}function integrateWasmJS(){var wasmTextFile="imagequant.wast";var wasmBinaryFile="imagequant.wasm";var asmjsCodeFile="imagequant.temp.asm.js";if(typeof Module["locateFile"]==="function"){if(!isDataURI(wasmTextFile)){wasmTextFile=Module["locateFile"](wasmTextFile)}if(!isDataURI(wasmBinaryFile)){wasmBinaryFile=Module["locateFile"](wasmBinaryFile)}if(!isDataURI(asmjsCodeFile)){asmjsCodeFile=Module["locateFile"](asmjsCodeFile)}}var wasmPageSize=64*1024;var info={"global":null,"env":null,"asm2wasm":{"f64-rem":(function(x,y){return x%y}),"debugger":(function(){debugger})},"parent":Module};var exports=null;function mergeMemory(newBuffer){var oldBuffer=Module["buffer"];if(newBuffer.byteLength<oldBuffer.byteLength){Module["printErr"]("the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here")}var oldView=new Int8Array(oldBuffer);var newView=new Int8Array(newBuffer);newView.set(oldView);updateGlobalBuffer(newBuffer);updateGlobalBufferViews()}function fixImports(imports){return imports}function getBinary(){try{if(Module["wasmBinary"]){return new Uint8Array(Module["wasmBinary"])}if(Module["readBinary"]){return Module["readBinary"](wasmBinaryFile)}else{throw"on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)"}}catch(err){abort(err)}}function getBinaryPromise(){if(!Module["wasmBinary"]&&(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER)&&typeof fetch==="function"){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 new Promise((function(resolve,reject){resolve(getBinary())}))}function doNativeWasm(global,env,providedBuffer){if(typeof WebAssembly!=="object"){Module["printErr"]("no native wasm support detected");return false}if(!(Module["wasmMemory"]instanceof WebAssembly.Memory)){Module["printErr"]("no native wasm Memory in use");return false}env["memory"]=Module["wasmMemory"];info["global"]={"NaN":NaN,"Infinity":Infinity};info["global.Math"]=Math;info["env"]=env;function receiveInstance(instance,module){exports=instance.exports;if(exports.memory)mergeMemory(exports.memory);Module["asm"]=exports;Module["usingWasm"]=true;removeRunDependency("wasm-instantiate")}addRunDependency("wasm-instantiate");if(Module["instantiateWasm"]){try{return Module["instantiateWasm"](info,receiveInstance)}catch(e){Module["printErr"]("Module.instantiateWasm callback failed with error: "+e);return false}}function receiveInstantiatedSource(output){receiveInstance(output["instance"],output["module"])}function instantiateArrayBuffer(receiver){getBinaryPromise().then((function(binary){return WebAssembly.instantiate(binary,info)})).then(receiver).catch((function(reason){Module["printErr"]("failed to asynchronously prepare wasm: "+reason);abort(reason)}))}if(!Module["wasmBinary"]&&typeof WebAssembly.instantiateStreaming==="function"&&!isDataURI(wasmBinaryFile)&&typeof fetch==="function"){WebAssembly.instantiateStreaming(fetch(wasmBinaryFile,{credentials:"same-origin"}),info).then(receiveInstantiatedSource).catch((function(reason){Module["printErr"]("wasm streaming compile failed: "+reason);Module["printErr"]("falling back to ArrayBuffer instantiation");instantiateArrayBuffer(receiveInstantiatedSource)}))}else{instantiateArrayBuffer(receiveInstantiatedSource)}return{}}Module["asmPreload"]=Module["asm"];var asmjsReallocBuffer=Module["reallocBuffer"];var wasmReallocBuffer=(function(size){var PAGE_MULTIPLE=Module["usingWasm"]?WASM_PAGE_SIZE:ASMJS_PAGE_SIZE;size=alignUp(size,PAGE_MULTIPLE);var old=Module["buffer"];var oldSize=old.byteLength;if(Module["usingWasm"]){try{var result=Module["wasmMemory"].grow((size-oldSize)/wasmPageSize);if(result!==(-1|0)){return Module["buffer"]=Module["wasmMemory"].buffer}else{return null}}catch(e){return null}}});Module["reallocBuffer"]=(function(size){if(finalMethod==="asmjs"){return asmjsReallocBuffer(size)}else{return wasmReallocBuffer(size)}});var finalMethod="";Module["asm"]=(function(global,env,providedBuffer){env=fixImports(env);if(!env["table"]){var TABLE_SIZE=Module["wasmTableSize"];if(TABLE_SIZE===undefined)TABLE_SIZE=1024;var MAX_TABLE_SIZE=Module["wasmMaxTableSize"];if(typeof WebAssembly==="object"&&typeof WebAssembly.Table==="function"){if(MAX_TABLE_SIZE!==undefined){env["table"]=new WebAssembly.Table({"initial":TABLE_SIZE,"maximum":MAX_TABLE_SIZE,"element":"anyfunc"})}else{env["table"]=new WebAssembly.Table({"initial":TABLE_SIZE,element:"anyfunc"})}}else{env["table"]=new Array(TABLE_SIZE)}Module["wasmTable"]=env["table"]}if(!env["memoryBase"]){env["memoryBase"]=Module["STATIC_BASE"]}if(!env["tableBase"]){env["tableBase"]=0}var exports;exports=doNativeWasm(global,env,providedBuffer);if(!exports)abort("no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods");return exports})}integrateWasmJS();STATIC_BASE=GLOBAL_BASE;STATICTOP=STATIC_BASE+6208;__ATINIT__.push();var STATIC_BUMP=6208;Module["STATIC_BASE"]=STATIC_BASE;Module["STATIC_BUMP"]=STATIC_BUMP;STATICTOP+=16;function ___assert_fail(condition,filename,line,func){abort("Assertion failed: "+Pointer_stringify(condition)+", at: "+[filename?Pointer_stringify(filename):"unknown filename",line,func?Pointer_stringify(func):"unknown function"])}var SYSCALLS={varargs:0,get:(function(varargs){SYSCALLS.varargs+=4;var ret=HEAP32[SYSCALLS.varargs-4>>2];return ret}),getStr:(function(){var ret=Pointer_stringify(SYSCALLS.get());return ret}),get64:(function(){var low=SYSCALLS.get(),high=SYSCALLS.get();if(low>=0)assert(high===0);else assert(high===-1);return low}),getZero:(function(){assert(SYSCALLS.get()===0)})};function ___syscall140(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),offset_high=SYSCALLS.get(),offset_low=SYSCALLS.get(),result=SYSCALLS.get(),whence=SYSCALLS.get();var offset=offset_low;FS.llseek(stream,offset,whence);HEAP32[result>>2]=stream.position;if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall146(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.get(),iov=SYSCALLS.get(),iovcnt=SYSCALLS.get();var ret=0;if(!___syscall146.buffers){___syscall146.buffers=[null,[],[]];___syscall146.printChar=(function(stream,curr){var buffer=___syscall146.buffers[stream];assert(buffer);if(curr===0||curr===10){(stream===1?Module["print"]:Module["printErr"])(UTF8ArrayToString(buffer,0));buffer.length=0}else{buffer.push(curr)}})}for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];for(var j=0;j<len;j++){___syscall146.printChar(stream,HEAPU8[ptr+j])}ret+=len}return ret}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall6(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD();FS.close(stream);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function _abort(){Module["abort"]()}function _llvm_stackrestore(p){var self=_llvm_stacksave;var ret=self.LLVM_SAVEDSTACKS[p];self.LLVM_SAVEDSTACKS.splice(p,1);stackRestore(ret)}function _llvm_stacksave(){var self=_llvm_stacksave;if(!self.LLVM_SAVEDSTACKS){self.LLVM_SAVEDSTACKS=[]}self.LLVM_SAVEDSTACKS.push(stackSave());return self.LLVM_SAVEDSTACKS.length-1}function _emscripten_memcpy_big(dest,src,num){HEAPU8.set(HEAPU8.subarray(src,src+num),dest);return dest}function ___setErrNo(value){if(Module["___errno_location"])HEAP32[Module["___errno_location"]()>>2]=value;return value}DYNAMICTOP_PTR=staticAlloc(4);STACK_BASE=STACKTOP=alignMemory(STATICTOP);STACK_MAX=STACK_BASE+TOTAL_STACK;DYNAMIC_BASE=alignMemory(STACK_MAX);HEAP32[DYNAMICTOP_PTR>>2]=DYNAMIC_BASE;staticSealed=true;Module["wasmTableSize"]=22;Module["wasmMaxTableSize"]=22;Module.asmGlobalArg={};Module.asmLibraryArg={"abort":abort,"enlargeMemory":enlargeMemory,"getTotalMemory":getTotalMemory,"abortOnCannotGrowMemory":abortOnCannotGrowMemory,"___assert_fail":___assert_fail,"___setErrNo":___setErrNo,"___syscall140":___syscall140,"___syscall146":___syscall146,"___syscall6":___syscall6,"_abort":_abort,"_emscripten_memcpy_big":_emscripten_memcpy_big,"_llvm_stackrestore":_llvm_stackrestore,"_llvm_stacksave":_llvm_stacksave,"DYNAMICTOP_PTR":DYNAMICTOP_PTR,"STACKTOP":STACKTOP};var asm=Module["asm"](Module.asmGlobalArg,Module.asmLibraryArg,buffer);Module["asm"]=asm;var ___errno_location=Module["___errno_location"]=(function(){return Module["asm"]["___errno_location"].apply(null,arguments)});var _create_buffer=Module["_create_buffer"]=(function(){return Module["asm"]["_create_buffer"].apply(null,arguments)});var _destroy_buffer=Module["_destroy_buffer"]=(function(){return Module["asm"]["_destroy_buffer"].apply(null,arguments)});var _emscripten_replace_memory=Module["_emscripten_replace_memory"]=(function(){return Module["asm"]["_emscripten_replace_memory"].apply(null,arguments)});var _free_result=Module["_free_result"]=(function(){return Module["asm"]["_free_result"].apply(null,arguments)});var _get_result_pointer=Module["_get_result_pointer"]=(function(){return Module["asm"]["_get_result_pointer"].apply(null,arguments)});var _quantize=Module["_quantize"]=(function(){return Module["asm"]["_quantize"].apply(null,arguments)});var _version=Module["_version"]=(function(){return Module["asm"]["_version"].apply(null,arguments)});var _zx_quantize=Module["_zx_quantize"]=(function(){return Module["asm"]["_zx_quantize"].apply(null,arguments)});var stackAlloc=Module["stackAlloc"]=(function(){return Module["asm"]["stackAlloc"].apply(null,arguments)});var stackRestore=Module["stackRestore"]=(function(){return Module["asm"]["stackRestore"].apply(null,arguments)});var stackSave=Module["stackSave"]=(function(){return Module["asm"]["stackSave"].apply(null,arguments)});var dynCall_vi=Module["dynCall_vi"]=(function(){return Module["asm"]["dynCall_vi"].apply(null,arguments)});Module["asm"]=asm;Module["cwrap"]=cwrap;Module["then"]=(function(func){if(Module["calledRun"]){func(Module)}else{var old=Module["onRuntimeInitialized"];Module["onRuntimeInitialized"]=(function(){if(old)old();func(Module)})}return Module});function ExitStatus(status){this.name="ExitStatus";this.message="Program terminated with exit("+status+")";this.status=status}ExitStatus.prototype=new Error;ExitStatus.prototype.constructor=ExitStatus;var initialStackTop;dependenciesFulfilled=function runCaller(){if(!Module["calledRun"])run();if(!Module["calledRun"])dependenciesFulfilled=runCaller};function run(args){args=args||Module["arguments"];if(runDependencies>0){return}preRun();if(runDependencies>0)return;if(Module["calledRun"])return;function doRun(){if(Module["calledRun"])return;Module["calledRun"]=true;if(ABORT)return;ensureInitRuntime();preMain();if(Module["onRuntimeInitialized"])Module["onRuntimeInitialized"]();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout((function(){setTimeout((function(){Module["setStatus"]("")}),1);doRun()}),1)}else{doRun()}}Module["run"]=run;function exit(status,implicit){if(implicit&&Module["noExitRuntime"]&&status===0){return}if(Module["noExitRuntime"]){}else{ABORT=true;EXITSTATUS=status;STACKTOP=initialStackTop;exitRuntime();if(Module["onExit"])Module["onExit"](status)}if(ENVIRONMENT_IS_NODE){process["exit"](status)}Module["quit"](status,new ExitStatus(status))}Module["exit"]=exit;function abort(what){if(Module["onAbort"]){Module["onAbort"](what)}if(what!==undefined){Module.print(what);Module.printErr(what);what=JSON.stringify(what)}else{what=""}ABORT=true;EXITSTATUS=1;throw"abort("+what+"). Build with -s ASSERTIONS=1 for more info."}Module["abort"]=abort;if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].pop()()}}Module["noExitRuntime"]=true;run()
 
 
 
diff --git a/codecs/imagequant/imagequant.wasm b/codecs/imagequant/imagequant.wasm
index e1a5d2a6..3dfae727 100644
Binary files a/codecs/imagequant/imagequant.wasm and b/codecs/imagequant/imagequant.wasm differ
diff --git a/codecs/imagequant/package-lock.json b/codecs/imagequant/package-lock.json
index da66a524..b710f04f 100644
--- a/codecs/imagequant/package-lock.json
+++ b/codecs/imagequant/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "mozjpeg_enc",
+  "name": "imagequant",
   "requires": true,
   "lockfileVersion": 1,
   "dependencies": {
diff --git a/src/codecs/imagequant/Quantizer.worker.ts b/src/codecs/imagequant/Quantizer.worker.ts
index ea08b521..ac83f610 100644
--- a/src/codecs/imagequant/Quantizer.worker.ts
+++ b/src/codecs/imagequant/Quantizer.worker.ts
@@ -9,6 +9,7 @@ interface ModuleAPI {
   create_buffer(width: number, height: number): number;
   destroy_buffer(pointer: number): void;
   quantize(buffer: number, width: number, height: number, numColors: number, dither: number): void;
+  zx_quantize(buffer: number, width: number, height: number, dither: number): void;
   free_result(): void;
   get_result_pointer(): number;
 }
@@ -51,6 +52,7 @@ export default class ImageQuant {
         create_buffer: m.cwrap('create_buffer', 'number', ['number', 'number']),
         destroy_buffer: m.cwrap('destroy_buffer', '', ['number']),
         quantize: m.cwrap('quantize', '', ['number', 'number', 'number', 'number', 'number']),
+        zx_quantize: m.cwrap('zx_quantize', '', ['number', 'number', 'number', 'number']),
         free_result: m.cwrap('free_result', '', []),
         get_result_pointer: m.cwrap('get_result_pointer', 'number', []),
       };
@@ -63,7 +65,11 @@ export default class ImageQuant {
 
     const p = api.create_buffer(data.width, data.height);
     m.HEAP8.set(new Uint8Array(data.data), p);
-    api.quantize(p, data.width, data.height, opts.maxNumColors, opts.dither);
+    if (opts.zx) {
+      api.zx_quantize(p, data.width, data.height, opts.dither);
+    } else {
+      api.quantize(p, data.width, data.height, opts.maxNumColors, opts.dither);
+    }
     const resultPointer = api.get_result_pointer();
     const resultView = new Uint8Array(
       m.HEAP8.buffer,
diff --git a/src/codecs/imagequant/options.tsx b/src/codecs/imagequant/options.tsx
index 4be993fd..a20a3084 100644
--- a/src/codecs/imagequant/options.tsx
+++ b/src/codecs/imagequant/options.tsx
@@ -1,29 +1,55 @@
 import { h, Component } from 'preact';
-import { bind, inputFieldValueAsNumber } from '../../lib/util';
+import { bind, inputFieldValueAsNumber, konami } from '../../lib/util';
 import { QuantizeOptions } from './quantizer';
 
+const konamiPromise = konami();
+
 interface Props {
   options: QuantizeOptions;
   onChange(newOptions: QuantizeOptions): void;
 }
 
-export default class QuantizerOptions extends Component<Props, {}> {
+interface State {
+  extendedSettings: boolean;
+}
+
+export default class QuantizerOptions extends Component<Props, State> {
+  state: State = { extendedSettings: false };
+
+  componentDidMount() {
+    konamiPromise.then(() => {
+      this.setState({ extendedSettings: true });
+    });
+  }
+
   @bind
   onChange(event: Event) {
     const form = (event.currentTarget as HTMLInputElement).closest('form') as HTMLFormElement;
 
     const options: QuantizeOptions = {
+      zx: inputFieldValueAsNumber(form.zx),
       maxNumColors: inputFieldValueAsNumber(form.maxNumColors),
       dither: inputFieldValueAsNumber(form.dither),
     };
     this.props.onChange(options);
   }
 
-  render({ options }: Props) {
+  render({ options }: Props, { extendedSettings }: State) {
     return (
       <form>
-        <label>
-          Pallette Colors:
+        <label style={{ display: extendedSettings ? '' : 'none' }}>
+          Type:
+          <select
+            name="zx"
+            value={'' + options.zx}
+            onChange={this.onChange}
+          >
+            <option value="0">Standard</option>
+            <option value="1">ZX</option>
+          </select>
+        </label>
+        <label style={{ display: options.zx ? 'none' : '' }}>
+          Palette Colors:
           <input
             name="maxNumColors"
             type="range"
diff --git a/src/codecs/imagequant/quantizer.ts b/src/codecs/imagequant/quantizer.ts
index bef87bd9..a53b060f 100644
--- a/src/codecs/imagequant/quantizer.ts
+++ b/src/codecs/imagequant/quantizer.ts
@@ -6,11 +6,13 @@ export async function quantize(data: ImageData, opts: QuantizeOptions): Promise<
 }
 
 export interface QuantizeOptions {
+  zx: number;
   maxNumColors: number;
   dither: number;
 }
 
 export const defaultOptions: QuantizeOptions = {
+  zx: 0,
   maxNumColors: 256,
   dither: 1.0,
 };
diff --git a/src/lib/util.ts b/src/lib/util.ts
index ed79b243..ac07fdf5 100644
--- a/src/lib/util.ts
+++ b/src/lib/util.ts
@@ -159,3 +159,25 @@ export function inputFieldValueAsNumber(field: any): number {
 export function inputFieldCheckedAsNumber(field: any): number {
   return Number((field as HTMLInputElement).checked);
 }
+
+/**
+ * Creates a promise that resolves when the user types the konami code.
+ */
+export function konami(): Promise<void> {
+  return new Promise((resolve) => {
+    // Keycodes for: ↑ ↑ ↓ ↓ ← → ← → B A
+    const expectedPattern = '38384040373937396665';
+    let rollingPattern = '';
+
+    const listener = (event: KeyboardEvent) => {
+      rollingPattern += event.keyCode;
+      rollingPattern = rollingPattern.slice(0, expectedPattern.length);
+      if (rollingPattern === expectedPattern) {
+        window.removeEventListener('keydown', listener);
+        resolve();
+      }
+    };
+
+    window.addEventListener('keydown', listener);
+  });
+}
