From ef4094885e46a62e3d3f44431f73e8cbbf1f5ba0 Mon Sep 17 00:00:00 2001
From: Jake Archibald <jaffathecake@gmail.com>
Date: Mon, 6 Aug 2018 12:42:23 +0100
Subject: [PATCH] Easter egg (#123)

* lol zx quant

* Adding ZX option

* Improving colour selection so we don't end up with the same colour twice. Also fixing a bug with the colour conflict resolution.

* Putting it behind a konami code

* Better comments

* Adding comment

* Removing unnecessary malloc.
---
 codecs/imagequant/example.html            |  10 +-
 codecs/imagequant/imagequant.c            | 165 ++++++++++++++++++++++
 codecs/imagequant/imagequant.js           |   2 +-
 codecs/imagequant/imagequant.wasm         | Bin 58721 -> 62147 bytes
 codecs/imagequant/package-lock.json       |   2 +-
 src/codecs/imagequant/Quantizer.worker.ts |   8 +-
 src/codecs/imagequant/options.tsx         |  36 ++++-
 src/codecs/imagequant/quantizer.ts        |   2 +
 src/lib/util.ts                           |  22 +++
 9 files changed, 238 insertions(+), 9 deletions(-)
diff --git a/codecs/imagequant/example.html b/codecs/imagequant/example.html
index e9b622a84..a1e27885c 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 538eac512..28032382d 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 e67849d2f..474c495ed 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 e1a5d2a6e41eec97893e2d51f3fdecdd669cc8d9..3dfae7276c61f08db45f14e21aee1475d7f5f727 100644
GIT binary patch
delta 11886
zcmb7K3z!wvk?zxv+kJ1}JGbZkV&HVo49wh_0YpW7pmV_CC5WIz6CZ#&M(^;NVL(Mq
zj|%ZcqU=G%U3S+fW|a`5UPKa&PF6H1D5wOItR|R{-Kcq(NU|mp*}qQTJ3Peo17^Cb
ztIw&bQ&p!<RrS34s`27)jHEVq@qDIf8oNVpT$P;6%vIB$iOn&?FuXBmv1Kg0VVR@b
zp3WSj*sy(v8K!QUb`{g=wQ^v}Ygj3Bn5P?du`^_F9rJ4S^767`qlDRMCxP*{ZWx9g
z_}sB=$4=nKHXMDBQ*E%y3fqaXV%sZ9FeA}WW9qIJvmGm?8A;n_M$FY`g{+>rxah9^
zEK3&8o;|y>r)R;!+4B}&F}L@cg$uOHie_KY(>b@dbN1y+uDYtTNBdHG_LZHBdwUjM
zU%-5wC1+pN)7d$@r*rX=dA-^)d7e=oE{V_XUNUz<?={OhwQHT(OFMfO6TOR*vzJ|W
z=*`l^mDevAKX=}|*-Nj{Zf1$ay>qYV67#@byNxB)(@bz%*wd-akE_S?=PvEkdg67Y
zBDW%(I;VH)*SfBpd()+}SFm#ym!5Ouyc@2+E^(jHZ!D9$jfT1n$q8n==yRHM&DXfj
z*=Swkns_qFb#J+>H0#;S-09{J#+J!Tta`b^x|5BTUMz#_>9N7-?J4GjT<b8~)2>*Z
zkryV;*Vkm^h6LAFX5{OM3D)wASe}v9?kht!wq^qze7FXdU}X|36H~?Q8T?3=e6ee7
zh6cn)rh78@p(mCNNGh>5!!;!xXM**N)=kK{hDJ<O+}C6Ty%sB@JLFL>BVs_VJc1a6
z9Fdxom+r<?zrL|mo>^37MWS3>w8B-hNf0dLgQB2uLniC%SPK{ireK`)2CUl*xh@<C
z2&_d59hH8JNWGJ;)v=_%r=O+UGv2Ui>oQ^;%@tubh?W7VEwR1L*Ic8WYebfT6s*8f
znv20A#B$tn#-L#D7Ush^#LnWHD?7?EI=FS0jq)LvniyC_LP=v1WN=2(W7L+iX=IJk
z@>}!`8F_zs9ZlU-{-rXtMBm_!FqUGb(JSztSJcw`u@$3gR%W<GDqWL_jFo6Gxedi)
zNq1CSjdkWes;FW$WLRQJW`$9djUuzk#;Q$uE@s4q<+=Q^N^wb6k4hZkA}3XkC4Jpi
zeHRfgt7%}Q%+qQwB>83S4;3pr&&ocMRd&#SIb<V^mOQOak>5GAQr=uAiAcrZ79u@<
z@JAz+Cj>gzrb9oG4jBAV>k15!K1bm=<61UQiwEbchBQLT$i3h=_YOH>h;mJ$LF4bq
zMALOr*4hky<WGmUju&sYK~yso`{-`rCi*xH*;@d9+op^xewV+0*cLJA&)?sc7w|F3
z=V*Gsz-VKeT*EU#KOuzK4UFdNmflYP!Bq|GNNHk=+{Y)gN;%vgmac?%gyab{RP2>k
z`mJ>v6-7G>+tU)@!w2!to=g;<li&3@=DzMvV*6xe5VTjS`P}p>YZMWVS=b9n!*vBD
z%}awFskz+BQ-Uj49<kQEN_l<IK5Andq=$f*8W`jvhS*Hcq`%E=oKWt-B1|B+$Pa><
z`aKzWR(;jg*!w1C*tFr8C7=yAA`|JJb*T^m!3v?l1Rv3aAR!*iK)qlD21(O(T?|=G
znwktAt1~L#0Y@vc!1IOry0R^8zTqaB%Z(;IDI8MD7WrX)-?)L0WJi0LLQ;&@5<@6b
zA<4=I9V-eP`Jhu64&QmIVOBoqBpY8OzkH*yG9Pq)-}wA79C!l_`r5F;<+m&I>QUq|
zx}y!2dvaJO3n2#MZloQXv|~d%E(9a(#JSxS*d(RP?R?;5JpNhjK)+@-utlv}k=WAK
ztZS#x;t-@1=m4kmCAPM4<?B0@pBkFjF4r_)qoilF{o)z5{f1`Nk3?|r8H|VVgSbiV
zUB;7<mq#lyup+%Tu<|SVr<PrzvQJ=iU{%KCp2O_)IRa?n(M+`2XwCV^DK=*i&Iqxw
z0Q6@76Xv-Bur&jiFk1@1PQ=|U3bj20EWP__Mr>EWt^%+(BX%jw+Xdja5I|w}6@U*j
zVxPkNt^j-tPgI!w1)#4*>{plrnLKcNi#QM})N()yxTi%dZy`BW7JxM^fC;m@06f?N
zm@sP#z@sgI3A3&MJkbJ}FdGWM<`%$&*;oMjTL9C!Bc3COfUPZn3D{BqcD4W}%=QBC
z(-y#l*;N4cwg4u~+XdjaEr1ELuK;}50+=wrD*zw203ICzwO>I1`dR_gpaamA0&Z^w
zOqk^b;GR~%gjrbt*0cg9%<2O0U@Kt4tStbKwgM*1x&rV-E8x-kSg0t15Us>Th>`+_
zG9B|)7d9EP0JY()Xu~0>;@HK8Q>O*u)ym;R+71gk2$IoZ!3GWsKwZHRhsE&J{x*?>
zFdS#B&~gi6W7)+QGd-+F3<7z?mvmMv>JBv8O`6cAU~lM?x*?V}2|L6yYedqEi7@Tf
zBM1^9<{4A)LPwwgN^#4NaJim4U{BR$Me(?X{iR}6O1v5q%ga0qA&+Y<MwJ(E%G8i@
z5S@|o#^N8QQX2T)?qq@YPM7|O`Ro&U_lUDtAa{&tW+Ua_M*KsbTC(0Ag)>0+hRXL#
znwv)<S-}ZoaErD+x4lLe0P>O$gP7MKGz+f)$TLdMVvX{~(i6)XfT2`I*o$cyG;XMT
zv2>{27|oF%me!Xx@|bTXbwqOv_Rb45j2T+SbAKIqmz7vkCY~-6pD?jo-ZgrHWK-MY
zcN)+o<o_hsdEV8mrrrg-LFpT-YSNJab&FKCm}$A4qc3IFd4U0fqsA;tol6?P5=<WR
zM#=AwnKSdfGQB)xU#mC$M7=5cwJegNgec4UWw?3SAYI6zwTXTyP*vF=C7QB9v0uSc
zVp!I%1QNbfj%e#w<3LTxu2Tn(g8jGA86`qeNiysDNgPY9nig0cDWrbBt+(s#27aUe
z+>-sLo)Drc!l}mX!18T6veFde5yeS$HfH-4uymLi?c8bAm}o?{%x&M|4kqa8NXYs&
z<~af<vqSSRP7{q2VDS7nrDoQJNu`)f3bDL2RByJ27{Z85p07ny&&viyA~6|8wuO=P
z9TG$r4HE(zvmGB^20$=B1%QsR&@Xa%3PM;G!4c>NDUu~c8gRrMY%ek790AU~;*K}W
z?hZN@G(W@?&5sdP10>-gRlTBW3C8#GSPukFL+8-PQM6(atyqB;q~KOWhScRk83$Rn
z$lw&$L%ltsq11x4#YAE{bOXtB5jIQ&2<H%bZ&oBoVx-fN5|HU;n+@$h{21062Mr@j
z7NWI>eiGRew26G4T;0fu8@q!PZMhhnEd|#ADXc8c9ksv+bX{dBWn4@2^=mz$?_giW
zx_l2JXp@3ev=RsUBq-*4E|2>u=)pTF@Gv6J92T?4Fn)@siK~s=OZkf!PFXw*#zclZ
zC9*563lvD7YINi{@Ru-_H@HOxR}&3b8juNF9Hx`}xB;DzWo(sifHq~4JaxEU+7H(Y
zCH!Ems|grR8i5m~k$aUxu$YgWCj`a?9{TlT^4&A4LcAW>39dM89w!m9;$IuH<WePM
z;2@4_OgJQXJeo<?=Os{`G7+p*B*H0v6>T|QB1&mtRr!~u1ubY6J!7#&v{)V|MJ3<@
zMPfl@{ZkB$lvPS3HCP>cHGz~&_fAw9W*%>;ZA4liAtBc6Za4zgGm*zdx?30%C_93X
zG3A;EZ|Ek^5byvbr$9Td{L|Q>CWMU1>N97Au5w?s6^a~<>4s@rF&nI*NlsypG^lvi
z9t&AhKyHBe14F9|*wfh|WK{uq8a94`Xjoam9?q(wfINa~Iaw`|rOXu{(+04FGY#re
zk-`y94?-M5Si<EMJb?`r)bL{Of&e+c3j_N_m>(C9H`De-vfhE{8M;$?NMA*8iX@^;
zG;5r8K5&U~8n3x2sG*f%TdIl41j3={^SV2H27t<X@kFzQcdnv(v)2t%K;?|g_&u;9
zaWs-V&zU&*HA(C{MEB;<(9X~_Ug_g>_FZC8#EVrJu*g`+q$~DQNrLjIFW#g-$Gl4r
zMf3Iv6qC)(K68^Wce#@OOkLwRD<bzQC#{BX*m6X73?ZvRa0{!mfMtk^$rw&v!8x`(
zcf4YV!5|#!Gq`7qp>Ypda&V-bpI3cc?VSNh71g||v5k1QHwz46!d!wO*#S-0jMHZH
z1aatu)Q?C5y<vCiq3g#fzLBA-qw@ipz@c$b;B@#U;EcnBiY|+2(RSl5Om#?E3gsx0
zP!}j!P&C$n-xwW%99q+YB9ywkj2C&QASP>*P=$eJ*Ev0@P{X#t=^6(jrus+cq-bN)
zC<sf@7yD4@2SPwU=&ZCyv{mX6#5+<3D91rL&SMDqoJ|47BBGSi&@03j&L*cQcwx;D
zj>18-JwxnI$c)gTRtB%YfQcOHni;q~a0Uym%(}3_*<yGbYBd@N+accMb-{~BE5&dE
z6`Ep^2hsU4Ahy8vUkuqj2#15jLm~w&(yk6E<V52vlCmp^Pr`^eG7C2-;mB2E^b8;I
z+<-=q3N&8CU93tIBOxDcroKLt=o6v@3f0sgl#Xf;FAR!=pfms~RswdQeCH|o)VKzA
zqTDm?3YL(kj~~r4xt{SKF{ch@(C7QQ<S&=YTRJW%MU@VFfj=CQ>s{RNn&f*OXR{VL
ze8Od{Nq%F(KGu@!nb^$Yt186H6=H<=K(3p#ke!(;oBV;!PM7UdYgv%HWNM!t-^!Rl
ziQX=`chMO3OIh7LUf+<Emvy&|I%dA-eyZzcXx@Y=pQJoey4YPp8S$Ml@fZ2=xl>!K
zYPjwjme`>Z<@;jdol+#q@Pa0NOhDQ7;S&~3Zzx_AjX#XcBWP=%rh&yadGgXBB+srH
zAFy+C{WITX=bukqJ=Olx^JghjXDJdkl)oY|Pi6cZg+JP-q^iO&Gdgk^nmA^pedUJO
z1M>G5T*ijUsk5fzx^~tKHZ1ptS?4phUyi%5lbtLdz3>!vVQ%k*9S$2Kht65anq_Xz
znXDrB=Q$OORmk||`&e!650|@o{FQR?X1S;n|H$c`%S<*lchfZ!nEUH8vASHmVTfnT
z<?C7hi08j&eebaMR8-jVV0O?EgJyO;44eM7>n6sok-hW#*dY0r`Mh=zIla+fj@Pul
z7t+`c26aTyJn)+3$ORmt%~&v>)yNkX)ZzNhg3};#)xtDmr^%*8&3HX?(V2i(Eo!hX
zhf~+eA1tclyBLdwNY|-fyep|}%uQ5T?`g<knfOG0lzX%SeM2~Ql3t*{`eoI0g%drw
z@!a%q?5m9oUc$&rcFCfr2f?vgo>q>v=;_JwTivh42SIQRTck!_+cSpM<eunxL}ypX
zFD?05)wgwKp=%|!MZ6=va5p*XwG-GjdF5+U^c6+&iPxrmd10Ut8Hh!VELhrG0I>|Q
zq9~GDy~)=tF+@NQeY2=mDwHpfeWigNfaO}KPB;}O<aXbDeej?>e{NBQN$I=z_agEq
zO~@j-_4QLeGax3OJ2aqnN6Rq=>`f0)xO~Sv)-8AJI5m8i={mL)WY8f)pA!j@-(FlV
zs9qC0IhuGQkWCy!1VhS)H}8{VC_AGf)ZoT&hE_IwA4v!BtWDD>)5<_@z{XSXlyLmL
zfw>xy4}L<(1uQ>eH4c|NP9H$oSnp0P3#}eJXmsNQHj%fPV@MCsIXzfo^a}<aVq^4+
z1|IA&`Xx$A&3#G7wne()l}qu~V7@;|G2?ARJeMMe$MKv6wV!E=krv@;n+)H20Jg5)
zmBn@Wu11+%dNr$(Z!MjHYvZ-UaGiE-w?7?SUTSbsJTSfK0b;n?{R$~G*OfKb-Nt6f
zhpu}DGrn^D<P%;%Zb8MhN?x$sD0z7a$xA<ymm(nY$xAVhQLOq;x$F8FHE-hmZoJ2l
z!P(_dlYzzj9LQhDvzARmQ255O=UKI!dc!5`SGmV-ct3`R)wgWKb@HuWWq+1W-Z~iY
z&RaL(dfW1|fcf$AKeAuRXI2bj<?@#+IuL3azrKU*&;8}=eN5hXdv#?Q?LYKWk#v+H
zVgW?S;+4q_w`a@Ca8i?>vn-hjj;-Fb+;I~7vYd0rIe1Tpu71?}{yW;MVrUSpaoh(O
z%KNA;HsD9%@3Q#LszGm7`kL5-E=F`R>sUUal4u~mDLd|*z`i0^-noWEz3aQUzIE44
zxXxHP71w`TISaz?U%7@Qq6qjYT2k`9Zw^hJ0hLiZ02|LcL%#COwX8LF)!n~ftS;BF
zs?x-vbm_fW#>UF6_w}+?Irjb<47lk2sm5V#iQMD=yxK0!M7y2aDuF{~<W<R84_(eO
za`Qv?mK7ouqT!)PHTU6vLFoC%!{ckC!|bTtkAO)5>f&`Lva96X>jcKWvF>HoA=f-|
zSrTCkg1Zzpgw(%1gNfV)-`-@f;nH1yCF1X*^<}uOSbri;gYU1WSo`z!?W|VTe&@%C
zwZHz(Nr-Ay8y4sYxwk#O+r*p8a*eny&rO&8PoEZx!O<H``M0OfEH6ZwctLgzAxuu)
z^kCv@Kh5b=k=G{wx@nmHh?g7k%r?fh=04b5qO)naPk&IPv(8-Vhoy{7lm7FMvQu-f
zK7R$%?=H@b=)ZvJj}^-mKROTC-9MV3vo~^eTiQwWm%Wr`4Xa8lAxm8PGRVaJ$aB0B
zPN_&tB(cRs6*@_Ea@EU&F#hqEA7gBnylCsq?5pzUTWf|DL>^E#i5x}U0hErIUHi&O
z(C2xt{CCMQ(uGN{Hu;B+{St}<DDT^k$`Mw*x|p3Mt!=HP?HwulnBi-1TJ<Fct+unb
zHL-R%f7_VUs#2u3B`Ur{T~BT6!mPpD4~#wqiYAi(o2Hoa2^s+&aY72KER1YGloy+t
zCDwX0;6OA$#&(Vz2;dG3LxI*2+Yd$fnLCGmW`Hd|Jv3nT&Z+E^+`Btxz#M6L(wkT4
z52xh=Z=PLOitH#wynbVd_bC9n6Qcvv%SQ2W&i@}DT?gAZ1GjLCR2YVz8k@X6=6VB<
z+}z~d%3SPs$5S^Ow?uxLS1Nbz%7iaf>dhg$5$8^-(3t~SIuzywm53~!DxCTevr&WS
zLYoSWm3XB*)nGywDRD*?4Lh8>DEM*Hd;MzFiScW2LmE<xTQchp!p+P2b-1DFHyF37
ztUm;|a8TCgxFclyxHV+`0Jo;BUymEUf;8YZGV3?uc2d?Kirbj1KMbZ%6ZJCHNYHt@
z%P&TKp;Jm<j7m5tMyDg|H*pkkQ~Yvxi-#$xaq82Ix;fF47e@E0=mtq>OjC3l32vw!
z$G}6pE*uLUSO%y;paRs{Xup+17eFJIL+?VvX$(f_(fBr)*-)UL;2zap$Qm{e&mtPf
zc!HvJfKNtA<gGa8sHgjV^$w>{Pd120XkdSk$LhdRbBqo}OFWy$8a>pJAzTutyWh;?
zbjxsuZY_|*q>3&2uIR@hLL45h_lghQEJpC=u4jTa-u4g=74}aNHj~Fb7>)gNgl#Ec
z*9Xp&pcQL&{J6^rFsa`P!SN|uq|wx){76-MDSWQNsT7zhaA5#tJgT*XdUFyDj5@A7
zY*J6u#lu&$kW?F@u|^xbaOE}h5+BjYy3|}XeH*W-L5Myco#R86q9&xg1;t~K#3&PG
zBo1nfayXu8R1AGUlh+cdWJHR}emev*i3VW|wX*If(K+NvZcV|fBoU)BUH4J<qDtpU
zMHTfiDB>>)VlM3KQu1w5(G4s{pjZS&f-STyT+jh!C@jenlsOC{{xRZDv(QT<{^-S_
zj*UYOOBg<AU?o#P8>*TTIFP^~eLJ9u;uFhocmfg_iWeFgBte{ddkRvrBqH*}94$pE
z>FIsl(aiBOJe)bqc^GpT+XZuzm;(SU)a1n3JZ{c|kHI-&97fBwj>Q>*AH^9ug?^7`
z%|kwybHo_yKgOD2v!gge^T)}Ve*tG(F@~>3rp{~I{tRdPxH<b@z!}~+VCE1#i^$Gu
zQy*bx?1kf8bMOV6<A-sM7>Dq%_-EFvnl8s>=lU<;ocIi9Fi!aK@F+W@sd=1hZukPu
z_$D==?Ez(@*B3E{|K)cTx+BNQx$z4)Cy&KBS>PNo4zZsh-*IvtI=~tJi|~REY6vqn
zBA6-g-DDts<y|XvBu}u!ponF7%;-fCoI6kw1szaFdmGd#vL+G9)Q5#(BmxSfD3YoH
zq6q9Y^eGtyac2sqCV3pEhCsDvtFCkeoAgNtffcfch};&*Kwp?}YJ!<Xea={iZ{pN6
z(JZxqjVY`;-<(MZ=9W+)9IvQrh`HPr*HhEQj$Yu1%Aa8ztm&H&Q6bvs%YrrzoM?O)
z6E+S#FaT2wg@AOVxq&_52mvrPY7|Di9JFMK7doq$M5M4}wG0|Z2Or`+LO*?I13TzZ
zKyLI3)s%=i%++Cr#2QU>r!X0_R7W~cv35d~%izF9_r2MhtiF+okDI}B^Kj%o#b;~z
zf8InK@fZWM;7j(D8Vmx6g_iO{;?bmOqmg?6<xMKQ4^0f9k6x6S<OcvXFd$FyK(jZY
zMjRlLXmy^Q2O}QnvsQZJ@+faSSeC1FEc#0?eBy*&i{?QG)d14jd6YGfZdLY-uD6K{
z4gzo_cd;xMW@bSVTF4?vL#{-5Oq6Ox={A&yL=CGr^wL5eHt-Vp+7U0&#60v8Y1<Jm
z?T}KqD1+ifDiy-FdwjR$#q{7tOZG-YEA{Flb$BOGE1X=Q!uP0y>{9Ye&t-m^o(mbe
zn?`>I<!zzU<+h+U$baSn;4Bd`++7>)(a{Nr?5qAB1NNof0ZQLvnHL5qnD-dgF=3sk
zdSECSbgCt&EQrboWx%}EP+{b)b}~xa@n~;Q6`^*ahVPbM>F2FI?JC>JSANo{_hsaV
zKdGf#YPY&&c4w+Tccy$`_u%-+K3s@8eDasqW~$JrM!$^QN>e$ij%o>iIa(@zynC>o
ztCRn;+Yj5TG|}(444%EiaV`3*zk~Q&pM<OPO8lLt>oR;6djZ=n|K=mty|w0`rtLYn
zN7L}T=b*Mn!!Mq3--A2QAc2ee!MkXty3(ILYmJNflEs}@^0`;_cIM9A^K6oRDiiyL
z#=kezWv(VR50$6x8|1u)r=*6K`=$G8;tvmVS&=5bH%#{Jt9IVOlc$OI<hS<K4|=f4
rEh@o2Eh(WZ{>3%%Mw6oSj@-Mi#=Waq5xT$Gy+qF0S0QVEGvWULN5ux#

delta 8579
zcmai33z!tum9AUW)m7cqJzX=?^L}uvXMpLR86Ii?A;Mf?cpDvvuSA&uj?tcxaUQ6k
z(4&$B5f}8T-}s1&8x=&!YT78PM2L@w$_7j@k`0@XKvvD>K{Ux?Bys<9t7}A)?DD8S
zb?&+6o^$Sb-CHmI()jsnMoe2ea23-ujeW=(Zja5o{gNm1Nw$jRuDjOOt%Pp7hQ*m3
zGMJ%<LY9`&lE5UZSVf7=61rizc70tfOH}L0WGTZR!_p1IGAxgevMtMwTDBFn3|p_U
zD-Bj&X1PW&v%{`sC5qxvW<>3(Xh_$>mTfv(%&?ddcJv%;Si~GWb;o*)ImMlwon8I?
zD|$P7dY3O9ys~$Nc41NH^8T)+gI%4=R$hL2SHE^{qVuw@fx-UXRRQK^7VEsczpJaW
zziVJ+&!DzeE;Y(>*F-w|RxVvJc;)IYZKd6LO;`T_@mn0dY}JaHOM7}cuenmoMF$3#
zF7FmSSWa8VV(M)XxcByVX<v@0*TqY(>C&!_)H1C>bIRAuy10MV4Od+Hh3hZ4Xx_}e
z%9*RLTy@>G(M^vS*PhGtTtmpy8$!a(Hp+0QyzaO&JJcqI>?U3FG_G?tN!Pe0{^)Ss
zy-A)KYG4cUmxe|$eTd05W<yw14vNZ^a*MfvogtgU89Xlt*O!$smgAaxBlEx_l;gU|
zH77s1=`7aKp@xJuzrnyFDaN&IO5<#9AC}SP_J`WsP_>A;VUbHX4F=bg0Io3~1A2R?
z4JeW+pl~?Le<!_APwa~`8%u&B;fO<Nd2@KNemE@;g}HtpE&m*zZSGBry=mEQy{eyR
zmabiC?n{e(Y1wMOm^+e&C_GH6A57yPy|HXcEp#MZkbyJ7`X}ij$a$D3=BT9(rv-^9
z4*0)VTn+lnfIRRCW{1-}q!b!q7Q#ZZH*!Wnyls&^qfRtuQ+gm!um=p9L0ppfYtgSb
zY7vqb%2hZi`*=F*>7<`<YIOW8aULZ#Be5DCGseW8qo1R(v6J6Pi+4yQk%QTlC{V)`
zn_E52G1|C>p%fE#7Q4^lnge2y1DUj2W;X6D6>rAGYhkgs)HNNB&1p6&-4;&5Vxuv`
z9VdHRz9WmqZ?`6JQ|NA^+&w;>o`CI#A_g~kNNC)08yo;^Hax==%uNZ+#1H^kJYfcF
zkR20FPo{t|Nl<Hm#3Z^#IXq#E)!@&OFHdMFZQx-q6w@7th~2p<4KyE4;PRq)nyheh
z{51V|T0Rr6qqiT$&mmtJU33#6A1zYIy+s#HRL1lSZVTg@lrD@xLFR;K3dZ%pl->t9
z$tG%7OtSL1iPNeNq`3*nu;2ckMjJ!i!v4e1_a&}?_4B4%$!Hfw6_=CwCl^1R^p^_x
zOEG^b$x76o)t8(W{g|ozLdjV)>z<NZiPxCYM#XDk@<LML;pBI!$xkd;2yVcwf|L4Q
zB5x@BiE;^zgzYS^3GGdDUGkDLDa$2^)Kt+-%+IfQe}eMR6t?eNxRWm*)aF`u$`FYK
z3ddEHDs8d$b(Nzbr|<R%v8|O8N2!n@9z=f-YteL_taBudfAUvjTV{$atq?Yp6Wi$5
z#E%%_MDkDoJl?8&O*~QfeX7-8WL@ERi@dyQN^FRxrx+GG(IU53Wm4-1Awqq?zzt2k
zjs9X)Mb;kI#CrLss(GwTwpEW!l)<}m6gWgG9+KBox73|zAyO*~7a$e5E<VB^YaVeN
zlDn%p<{qh@%eKjMO^TPP`8?#7RVyZNYaPKCGaN@i(si=CrplsaG`CFNTGMvgi55tT
z6+o6U$d?UqlHSQyCtEn7oDqRTK(3d6sad2SOv{ei%39=~5N24)2~7db9iI*CEWc7a
zs`XeJ1_L{=iG>`50z>}8`#f+ulvddiIFiu>=QnEWlIvSN!-+9OaFZSrHmSK@>UBeB
zk0d|KPYy6550k`UiUmr3W+A<qe(ouxw}2ep@KW9Rg;Z8w|6=_}DkFL_E-};MtdPk*
zs(=0;xakL@?jkqc%<Iecsg2YTi)=7u^!Xm1f01`F<ZUSC__ndgHWqB-U=8xY2)DXZ
z7A@#-tB|@Gk7Pv?^bn_54b}}Il0=QtRIG1J>)K>e8d*_+HgJB`+1SdJSKp~T($K_a
zxjl8I(t%N^)ikI`p3<;=0#ru|2@!oQWxYvylE-|1_BAs6>|z!)k|m7?b86#KMmy9p
z=AjmjY~VkTKoh@C`*B4|7jm^YnMML5#EAe{mjO(ep#a#J0Zf?n0dQwV<kl<H<_xej
zc7H}}R={uoJd_c`3bQ2u9?ys^3bQQ$p2~=A3iCt&?8=BI6lP}typ$0;6=qKW?8}Hf
zIfdE_NC5{kVy^-Y1i;~pIG`|x0^nFi98#Dg0r2aLIHEA`1i&9M;vI!K9snmZ;<&<`
z2!M6X;zWijofsmBfQ`+7m5Bo2&StS*VKxWA{mo*t!VCw%L(O7XVYURo<IQ4=!fXqG
zr<%n!g?S<Xb~TG9nkVJ3>P`g#c&QmMEx#uK_B8`0%-#Sv*bJC32Lj-5Gho6T3V>tH
zfC+OX0Dj#Jm@w}Iz#p0cPtwoQ#Bm=&vJw{|A);EV%4c>X%Ftn`h%^0&L;loKIwDRL
z24tfL#(p9jAs_m6fsND!K%c4$<7#%ciWr39sGmY};>ZtTy`4n@bI+7#wqC_{%dM?5
zSc`nSHO<D!;&Fe;*G#<Cj2<o(AC!s@nYdRzF==-Gg(;UXb8gB&1JE#ab$m8;BS<(Q
z9(E_l?Nh(B=;5TE%(1oTcOCS*d$cUdwIh;QuM|ISHWd$gU2Tq60#qgXKhcy;xn3De
zFgELz1Bo6WiDcnbBJ(qO$+Y^(kp6YbY9dE1Of2hoF^9(?eJawTX{m5~T;~x_6(yt1
zFHL$I56j1=P0X2I7#W)qah!S@-;mtIJPa_0MhwulXiSWr6K9IXGeH~{C?$Sk2C*1D
z8=V@pK#^_?mmt$>$bP1q01ngQzC4%+v547uSrMJr9?IoJ&Wj2L!CN$4G^%#YA1Abj
z_QdoloWdq6*;2On5>^+Z79fFz2gNOKg!<YkS3zocglBQv3ma`T=${TiKFF<pFZ?Mr
zbFh!%W%<0UfEQ9c`Z~pj%z)yEe(59DCo&LG&*2pU2Wr4!l(~H!=HNBt8<UY~psGFy
zb;-eSawwpT!ED;la$BJy!#bugva}1-Q{=oD_Cy(x+FFc=8~Rezh<fBtCUzgZNKfV{
zWodEjouf8}A^~a-?a}%@n_{QiOTc@yxv3&wDcj)+VqU_@aSJ?6?2CI^DgmOx@`l61
zo~^WUQrLY>jHBwQ{2+r<2h148inJ7F(z+yF7;P}o=>GN+8PGJ}psj7AP$0J<_wvn>
z8?j4(^X;-#sS>85NIpi5&4_6r8~N8MrU}#HCQL&U3Z}u~z<0X9Psxu=<O9ts@;zD;
zyL0kS(~EMxE`FUZ5>tCf1uZLn-k8O2s+hJNz6Mck^fRza5sapSgBMdLK--0#i;CQQ
zuY$sh7mHHTwj$U|6L!%|dWQv~<PCmHL+2Mv^HrW~Xk@+;VyXEa0Au3JJJC0;rJ}Sj
zY$}Ub5Q;<$i_SjyP?6B)zyygtVa%qA4pA+K-1ejE`@ARs_yo0ZQIp$_7Y;Ik{9uO1
zELqdm!HVQnZ525O=H!$QA%_{Oarh?@)dAvhh^$De0?ah#BPs*LRBSXcsR$4O*YW@{
z!laD0#*8JMoH#)dYzq4vn8L=UK`9%t8$&vZI=qZKh@4avcinSRc6SPSBI`kSFCyM+
z!bA}FwIdTn=l7EliohTi$8u`Y+1g^@oU=7vwI)?X3b4Yw7|epOar<)Z@O*eTOeOx%
zWP+)qxZddY!N6XG+q6aRV<{3xBe4rB(-K})3;~8j4fwN~#>*)PeS#wHdgub-sZl5s
zbHvV86&_+J(xmTV?)jb_!-gsQr_>@Rn>^czg&m$${HE&~N7{!C(N8AHlt`XDiD@9A
zO@iPi)HA(kER6H6;2bfH@>8r#YeQI$sm+GQ6EIL1r{IM!dBow7Q>4t1n2KY;%xGPC
zpZhs5w?t?q?2#R@a@E;dM}H~;dywhD2R74i=ytpaJe1QORX{xWHKiic?Lam1im|fY
zO@`zqv7#t~1ZKgKxh6!I!YThHTY;4g8^S;E-=ZSMVKNOF4Y{_I7rCE7@2t(m5j4up
z?gjn8MyN(c@D5Kx##s<Y7Ki*J84d|n*@x`l7L(b0*4)k!=SX|p0Otreqlrgr&dvG2
z*u>R_5ostvyywL!J3(i1UW7S0Ya!r}ad2fsn~fq!u?cG}N=5sjo(V6uyAk|s0FIVT
zMTrpGhSVI&(G)nnO42SI0O>}#4rQ4UnFWG*0D@y9X>NkN9A*y2QMnKqbNy&Hom4SS
z9Vv_6Et4mllnL2MZ;clzO*Dba62gh0DMKM*OqgOws3|I&N1-oqFHot~sWd97Xa|{m
zdsZWxC}Zu*nIo@mpTwH-Tif4ftXkeT=jzfi<hBtkh~VOSH#gidvVQI?mX^!sE@5Nj
z3v-XLbbjl+G>g1hCN`9d@#0_QkLUNY&&u6bl;=Aays5J@<sT=BntM#WC}*xg8)c%6
z8nUU4GE+8EWlO%}b3=OVUv)i{3$1~;yW=jIQQTWX*G3z{;@{*m9Sd8^tGVu>vykdG
z>F%(2kZzL@F-`iE6kYM1I$`{x#^S4d`cv3kw&<D21_QU3v`T))<SUppp3HyTk!LUd
zZ#FwW?(;uq3l}N^I25JnLc0)ZL;cZ3v<D@yaM?xm#=pIy7EE1uQlAjaP_30NmtC-g
zjh5fN;9NY5FYI8W^UE(>%-Bx(%tc-7bXj-tWOiQu{EORdHc8&MbR!!po0d&y$^4g>
zl{1!<YnLBmwfW_jIeO%_GI4jAs1x7KUwirL5Sx~NFFTvLTa)5YQoLb^kCJq^X38x+
zwazI>+1ulN;{Co)y}#1)4QyfeRcjbqCf{8##Oh?Wm*aVBZxy6@7;sX4ulK4^RcJ|6
zYhb`3%QLz*Q`3f~U5XbJM7K&Vx_T<)zU}G+V^ieU`_h>9O5b$A;r>SRi`;f=<@o-(
z$X?v1ll_O~f1EdkeM6RZ%+z83i#l49#~pGv{B6>4rPe3n*<vOq4DOHA!BaIjb(OSN
zPGMDfvGQS^T_WGU_Q&C=AQzjYw|LawpZ@BaEGw61tnI+_t82&N`OUR`-W=Qm;ciYj
zPsp8<LX4=3JB7q)!ja!Rnkk0I8FbfyB~;g>%eLIt*nGJ+_YC+94b7W)bJ{DSyGc}_
zcJ!&Zo1_ACOWG9c(hd?pNE8YX(kFT7SLL6FI;!u+_`Mj%)g@=kFb@_L4*>Zuvg^ik
z;0XB}pJx@a|E5dWBl-O|{VI%?XK#55&)yARW>3qvHq-<D(}t(<+;Qs+V19G!@7N>q
zKR1qLHPXDT9qzT@w*72pzUH5XSU8Nc>98&D-Bevs>fst1mp4cwrMR^M=n^Pj-;^yY
zMdqbDCZ<|n(wau*Z$5)9lDW+bFs^Q6KQ;cd&28=XFhq>snW!jvzC7Ei!DzE_h|noG
zbn%vk4qMz^;b{PI>7|mc4vP>f#!PXy?7n?A`@H<t?ZYJf9Xs&+;EpwTUMm;k`I0;z
z`c&UJ%%XlE{1r!Dx$CYm@u{#P9oP(%s;TmKciqo2`Hgq~6e%p<JzNoDpUvNVf0nUn
z^0!|ftj(afl!!2zIW&a4Jd0{)b@LY9`k<T1uYF*lamx8HfAGOOt<t8HM&1YNC~Sh8
zSGQbV|L8K-B!BwoUCH5?%2nLJA@p4h2PY<W%dc&}502gN*vuN=qam4^>U%W2OS%7z
zkDbms<+mRbp#7i6zQ=@o{_!QTR;3N~1?~*lw4;N~$gke<w82{C#3wH+r$E4k5k7s?
zfWnu|t&@*Ec{)P%XHOzj@Ay_5tCiwgudpf^$)AB>nVw&vBQSS-`$r*+tb2Aep4*>2
zmmg#-OrLS!5h73{bgCLX{oBfyd&vK8jAH;_VlMW-!3@jHz~@>Zsq+*=(q@#j3mkkS
z;4@1$6(R|-#c+Xd$cF}0l)pPL5AMjd#*jSm>@+#`xwFbP6)YGDme$0pak=riEzzY&
zIK;$lmXmgk)!$9zJ9oX#*v5SG^CdcK&rjb|q_ZXYb6&tlx^}tr#cgbIKKjyfrvK2*
z_rCmjrvJv3FMsbmV9Q^bt+TuGm%iFYUh%+d3D)>#u_@jvM#8~|6!DW{?zkl!cc`eP
zu`I&25}ysK<r}Zpg8sL!Kg!s!9RBwk*_UMX_p8SSB9Cl3iTo))(BTJP{Qeo()y?1k
zuadu0($?>9@;)w2C6v5zI%@k=9eZQ{06R;zA809^-X2GoXr6`;Q}@mIX0q-;6Pqq~
z9GDV+vjh!QiSjd;>%9Zrn6>1Mla-I?%%qPH1(Ad8*)0!UH<4|U(N*(xSo?xi=j6J5
zZ-NWsyel*mX8M+6jA%yAZJ<(8il(!h+e{G$Ajs6%R%bFEq``9uD%~HN;-v&B#>j0E
zqy{WoRvbd(bwm-IED$&wjS^IaLUX{WH=v|`a#ek8U~7|Zc_4x*j>c7$5O2lhq}7xE
zh5*e_(FnmUtDFB0!9$4=f&;62Sg$<m`ZMJnKNvScY8Mu>#paKB9sa?Xzag;13m+5I
z|8ODOo$vl(2RyJyK7Vkz{&taUcym^+5=~2-4Dw4ud@~M%ICK0!a<gttN*Rn)(}auv
ziN5X>QYHZ~<jxq)J8Xy{nup<B7Q6FfZ2*Tf*!yK2bqq(Z|C3F_|H}uqe(;8S;1APK
zEjP(W){GwOf_<=OPrF0Rv2n9VH|kDU6Sm9f$8wp}f0W5Z3qx+Dlb}f-yM*(Wj?y4@
zrriPmwr>|ce))`NX@x)T3hV|*z#IMLV71sqppOuH(r!;Ro-`P8FGmZ=Sx<_&HJ%P}
zU<!TEJ&!KneHwo*5xJKYrny}xbZ}@i+!Q^yad0brVz<pFcgOpSxo0PEZw9vV=r2a=
z_=z5^8KrcF*XjLPxNjJBjjjS(G&CNhwVZV{Q}qw|N&OeCa{bXd_jC#+l|m`|xs~$x
z(R%&QwbDK2eI`@^;cbUOhyAu=(kG;kG_fn{=*P;DR~?7pz`NTS89DAauT|y$`PjY~
zdqMX6eoW;3(GGJoadNc0@AtL#jxi34Y3P}E|Gql&HeQM}@%|X6EDm#r=%Gc5l;!cn
z(1T+g=4xVxG~R2NacrzpRD!{h5_;lKL=$&4Deez8Ib~5osYk>iP{R`o?*|1|{7IAS
IdT+`90;AYCmH+?%

diff --git a/codecs/imagequant/package-lock.json b/codecs/imagequant/package-lock.json
index da66a5249..b710f04fb 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 ea08b5213..ac83f6104 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 4be993fde..a20a30845 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 bef87bd9d..a53b060f9 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 ed79b243f..ac07fdf5d 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);
+  });
+}
