BangleApps/lib/heatshrink.js

/*
  Compiled to JS with Emscripten by Gordon Williams <gw@espruino.com>
  heatshrink_config.h matches that of Espruino.
  Source for conversion at http://github.com/gfwilliams/heatshrink-js
*/
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define([], factory);
    } else if (typeof module === 'object' && module.exports) {
        // Node. Does not work with strict CommonJS, but
        // only CommonJS-like environments that support module.exports,
        // like Node.
        module.exports = factory();
    } else {
        // Browser globals (root is window)
        root.heatshrink = factory();
    }
}(typeof self !== 'undefined' ? self : this, function () {
/*
Copyright (c) 2013-2015, Scott Vokes <vokes.s@gmail.com>
All rights reserved.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

var Module=typeof Module!=="undefined"?Module:{};var moduleOverrides={};var key;for(key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}var arguments_=[];var thisProgram="./this.program";var quit_=function(status,toThrow){throw toThrow};var ENVIRONMENT_IS_WEB=false;var ENVIRONMENT_IS_WORKER=false;var ENVIRONMENT_IS_NODE=false;var ENVIRONMENT_HAS_NODE=false;var ENVIRONMENT_IS_SHELL=false;ENVIRONMENT_IS_WEB=typeof window==="object";ENVIRONMENT_IS_WORKER=typeof importScripts==="function";ENVIRONMENT_HAS_NODE=typeof process==="object"&&typeof process.versions==="object"&&typeof process.versions.node==="string";ENVIRONMENT_IS_NODE=ENVIRONMENT_HAS_NODE&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER;ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;var scriptDirectory="";function locateFile(path){if(Module["locateFile"]){return Module["locateFile"](path,scriptDirectory)}return scriptDirectory+path}var read_,readAsync,readBinary,setWindowTitle;if(ENVIRONMENT_IS_NODE){scriptDirectory=__dirname+"/";var nodeFS;var nodePath;read_=function shell_read(filename,binary){var ret;ret=tryParseAsDataURI(filename);if(!ret){if(!nodeFS)nodeFS=require("fs");if(!nodePath)nodePath=require("path");filename=nodePath["normalize"](filename);ret=nodeFS["readFileSync"](filename)}return binary?ret:ret.toString()};readBinary=function readBinary(filename){var ret=read_(filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}assert(ret.buffer);return ret};if(process["argv"].length>1){thisProgram=process["argv"][1].replace(/\\/g,"/")}arguments_=process["argv"].slice(2);if(typeof module!=="undefined"){module["exports"]=Module}process["on"]("uncaughtException",function(ex){if(!(ex instanceof ExitStatus)){throw ex}});process["on"]("unhandledRejection",abort);quit_=function(status){process["exit"](status)};Module["inspect"]=function(){return"[Emscripten Module object]"}}else if(ENVIRONMENT_IS_SHELL){if(typeof read!="undefined"){read_=function shell_read(f){var data=tryParseAsDataURI(f);if(data){return intArrayToString(data)}return read(f)}}readBinary=function readBinary(f){var data;data=tryParseAsDataURI(f);if(data){return data}if(typeof readbuffer==="function"){return new Uint8Array(readbuffer(f))}data=read(f,"binary");assert(typeof data==="object");return data};if(typeof scriptArgs!="undefined"){arguments_=scriptArgs}else if(typeof arguments!="undefined"){arguments_=arguments}if(typeof quit==="function"){quit_=function(status){quit(status)}}if(typeof print!=="undefined"){if(typeof console==="undefined")console={};console.log=print;console.warn=console.error=typeof printErr!=="undefined"?printErr:print}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){if(ENVIRONMENT_IS_WORKER){scriptDirectory=self.location.href}else if(document.currentScript){scriptDirectory=document.currentScript.src}if(scriptDirectory.indexOf("blob:")!==0){scriptDirectory=scriptDirectory.substr(0,scriptDirectory.lastIndexOf("/")+1)}else{scriptDirectory=""}read_=function shell_read(url){try{var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.send(null);return xhr.responseText}catch(err){var data=tryParseAsDataURI(url);if(data){return intArrayToString(data)}throw err}};if(ENVIRONMENT_IS_WORKER){readBinary=function readBinary(url){try{var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}catch(err){var data=tryParseAsDataURI(url);if(data){return data}throw err}}}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}var data=tryParseAsDataURI(url);if(data){onload(data.buffer);return}onerror()};xhr.onerror=onerror;xhr.send(null)};setWindowTitle=function(title){document.title=title}}else{}var out=Module["print"]||console.log.bind(console);var err=Module["printErr"]||console.warn.bind(console);for(key in moduleOverrides){if(moduleOverrides.hasOwnProperty(key)){Modul
var asm=(/** @suppress {uselessCode} */ function(global,env,buffer) {
"use asm";var a=new global.Int8Array(buffer),b=new global.Int16Array(buffer),c=new global.Int32Array(buffer),d=new global.Uint8Array(buffer),e=new global.Uint16Array(buffer),f=new global.Float32Array(buffer),g=new global.Float64Array(buffer),h=env.p|0,i=env.q|0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0.0,r=global.Math.imul,s=global.Math.clz32,t=env.a,u=env.b,v=env.c,w=env.d,x=env.e,y=env.f,z=env.g,A=env.h,B=env.i,C=env.j,D=env.k,E=env.l,F=env.m,G=env.n,H=env.o,I=2928,J=5245808,K=0.0;
// EMSCRIPTEN_START_FUNCS
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// EMSCRIPTEN_END_FUNCS
var L=[vb,Aa];var M=[wb,Fa];var N=[xb,Ba];var O=[yb,Ca];var P=[zb,Ga];return{___errno_location:Da,___muldi3:eb,___udivdi3:jb,_bitshift64Lshr:kb,_bitshift64Shl:lb,_compress:U,_decompress:V,_free:cb,_i64Add:fb,_i64Subtract:gb,_malloc:bb,_memcpy:mb,_memmove:nb,_memset:ob,_sbrk:pb,dynCall_ii:qb,dynCall_iidiiii:rb,dynCall_iiii:sb,dynCall_iiiii:tb,dynCall_vii:ub,establishStackSpace:T,stackAlloc:Q,stackRestore:S,stackSave:R}})


// EMSCRIPTEN_END_ASM
(asmGlobalArg,asmLibraryArg,buffer);var ___errno_location=Module["___errno_location"]=asm["___errno_location"];var ___muldi3=Module["___muldi3"]=asm["___muldi3"];var ___udivdi3=Module["___udivdi3"]=asm["___udivdi3"];var _bitshift64Lshr=Module["_bitshift64Lshr"]=asm["_bitshift64Lshr"];var _bitshift64Shl=Module["_bitshift64Shl"]=asm["_bitshift64Shl"];var _compress=Module["_compress"]=asm["_compress"];var _decompress=Module["_decompress"]=asm["_decompress"];var _free=Module["_free"]=asm["_free"];var _i64Add=Module["_i64Add"]=asm["_i64Add"];var _i64Subtract=Module["_i64Subtract"]=asm["_i64Subtract"];var _malloc=Module["_malloc"]=asm["_malloc"];var _memcpy=Module["_memcpy"]=asm["_memcpy"];var _memmove=Module["_memmove"]=asm["_memmove"];var _memset=Module["_memset"]=asm["_memset"];var _sbrk=Module["_sbrk"]=asm["_sbrk"];var establishStackSpace=Module["establishStackSpace"]=asm["establishStackSpace"];var stackAlloc=Module["stackAlloc"]=asm["stackAlloc"];var stackRestore=Module["stackRestore"]=asm["stackRestore"];var stackSave=Module["stackSave"]=asm["stackSave"];var dynCall_ii=Module["dynCall_ii"]=asm["dynCall_ii"];var dynCall_iidiiii=Module["dynCall_iidiiii"]=asm["dynCall_iidiiii"];var dynCall_iiii=Module["dynCall_iiii"]=asm["dynCall_iiii"];var dynCall_iiiii=Module["dynCall_iiiii"]=asm["dynCall_iiiii"];var dynCall_vii=Module["dynCall_vii"]=asm["dynCall_vii"];Module["asm"]=asm;Module["ccall"]=ccall;if(memoryInitializer){if(!isDataURI(memoryInitializer)){memoryInitializer=locateFile(memoryInitializer)}if(ENVIRONMENT_IS_NODE||ENVIRONMENT_IS_SHELL){var data=readBinary(memoryInitializer);HEAPU8.set(data,GLOBAL_BASE)}else{addRunDependency("memory initializer");var applyMemoryInitializer=function(data){if(data.byteLength)data=new Uint8Array(data);HEAPU8.set(data,GLOBAL_BASE);if(Module["memoryInitializerRequest"])delete Module["memoryInitializerRequest"].response;removeRunDependency("memory initializer")};var doBrowserLoad=function(){readAsync(memoryInitializer,applyMemoryInitializer,function(){throw"could not load memory initializer "+memoryInitializer})};var memoryInitializerBytes=tryParseAsDataURI(memoryInitializer);if(memoryInitializerBytes){applyMemoryInitializer(memoryInitializerBytes.buffer)}else if(Module["memoryInitializerRequest"]){var useRequest=function(){var request=Module["memoryInitializerRequest"];var response=request.response;if(request.status!==200&&request.status!==0){var data=tryParseAsDataURI(Module["memoryInitializerRequestURL"]);if(data){response=data.buffer}else{console.warn("a problem seems to have happened with Module.memoryInitializerRequest, status: "+request.status+", retrying "+memoryInitializer);doBrowserLoad();return}}applyMemoryInitializer(response)};if(Module["memoryInitializerRequest"].response){setTimeout(useRequest,0)}else{Module["memoryInitializerRequest"].addEventListener("load",useRequest)}}else{doBrowserLoad()}}}var calledRun;function ExitStatus(status){this.name="ExitStatus";this.message="Program terminated with exit("+status+")";this.status=status}dependenciesFulfilled=function runCaller(){if(!calledRun)run();if(!calledRun)dependenciesFulfilled=runCaller};function run(args){args=args||arguments_;if(runDependencies>0){return}preRun();if(runDependencies>0)return;function doRun(){if(calledRun)return;calledRun=true;if(ABORT)return;initRuntime();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 abort(what){if(Module["onAbort"]){Module["onAbort"](what)}what+="";out(what);err(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()()}}noExitRuntime=true;run();

var HS_LOG_LEVEL = 0;

function heatshrink_compress(inputBuffer) {
        if (inputBuffer.BYTES_PER_ELEMENT!=1) throw new Error("Expecting Byte Array");
        var input_size = inputBuffer.length;
        var output_size = input_size + (input_size/2) + 4;

        var bufIn = Module._malloc(input_size);
        Module.HEAPU8.set(inputBuffer, bufIn);
        // int compress(uint8_t *input, uint32_t input_size, uint8_t *output, uint32_t output_size, int log_lvl)
        output_size = Module.ccall('compress', 'number', ['number','number','number','number','number'], [bufIn,input_size,0,0,HS_LOG_LEVEL/*log level*/])+1;
        var bufOut = Module._malloc(output_size);
        output_size = Module.ccall('compress', 'number', ['number','number','number','number','number'], [bufIn,input_size,bufOut,output_size,HS_LOG_LEVEL/*log level*/]);
        // console.log("Compressed to "+output_size);

        var outputBuffer = new Uint8Array(output_size);
        for (var i=0;i<output_size;i++) outputBuffer[i]=Module.HEAPU8[bufOut+i];

        Module._free(bufIn);
        Module._free(bufOut);

        return outputBuffer;
}

function heatshrink_decompress(inputBuffer) {
        if (inputBuffer.BYTES_PER_ELEMENT!=1) throw new Error("Expecting Byte Array");
        var input_size = inputBuffer.length;
        var output_size = input_size + (input_size/2) + 4;

        var bufIn = Module._malloc(input_size);
        Module.HEAPU8.set(inputBuffer, bufIn);
        // int compress(uint8_t *input, uint32_t input_size, uint8_t *output, uint32_t output_size, int log_lvl)
        output_size = Module.ccall('decompress', 'number', ['number','number','number','number','number'], [bufIn,input_size,0,0,HS_LOG_LEVEL/*log level*/])+1;
        var bufOut = Module._malloc(output_size);
        output_size = Module.ccall('decompress', 'number', ['number','number','number','number','number'], [bufIn,input_size,bufOut,output_size,HS_LOG_LEVEL/*log level*/]);
        // console.log("Compressed to "+output_size);

        var outputBuffer = new Uint8Array(output_size);
        for (var i=0;i<output_size;i++) outputBuffer[i]=Module.HEAPU8[bufOut+i];

        Module._free(bufIn);
        Module._free(bufOut);

        return outputBuffer;
}

return {
  compress : heatshrink_compress,
  decompress : heatshrink_decompress,
};
}));