NONGYESHUZIDIZUO/public/Cesium/Workers/transcodeCRNToDXTprevious.js

define(["./CompressedTextureBuffer-290a1ff4","./when-b60132fc","./PixelFormat-9345f1c7","./RuntimeError-4a5c8994","./createTaskProcessorWorker","./WebGLConstants-4ae0db90"],(function(CompressedTextureBuffer,when,PixelFormat,RuntimeError,createTaskProcessorWorker,WebGLConstants){"use strict";
/**
     * @licence
     * crunch/crnlib uses the ZLIB license:
     * http://opensource.org/licenses/Zlib
     *
     * Copyright (c) 2010-2016 Richard Geldreich, Jr. and Binomial LLC
     *
     * This software is provided 'as-is', without any express or implied
     * warranty.  In no event will the authors be held liable for any damages
     * arising from the use of this software.
     *
     * Permission is granted to anyone to use this software for any purpose,
     * including commercial applications, and to alter it and redistribute it
     * freely, subject to the following restrictions:
     *
     * 1. The origin of this software must not be misrepresented; you must not
     * claim that you wrote the original software. If you use this software
     * in a product, an acknowledgment in the product documentation would be
     * appreciated but is not required.
     *
     * 2. Altered source versions must be plainly marked as such, and must not be
     * misrepresented as being the original software.
     *
     * 3. This notice may not be removed or altered from any source distribution.
     */var Module;Module||(Module=(void 0!==Module?Module:null)||{});var moduleOverrides={};for(var key in Module)Module.hasOwnProperty(key)&&(moduleOverrides[key]=Module[key]);var ENVIRONMENT_IS_WEB=!1,ENVIRONMENT_IS_WORKER=!1,ENVIRONMENT_IS_NODE=!1,ENVIRONMENT_IS_SHELL=!1,nodeFS,nodePath;if(Module.ENVIRONMENT)if("WEB"===Module.ENVIRONMENT)ENVIRONMENT_IS_WEB=!0;else if("WORKER"===Module.ENVIRONMENT)ENVIRONMENT_IS_WORKER=!0;else if("NODE"===Module.ENVIRONMENT)ENVIRONMENT_IS_NODE=!0;else{if("SHELL"!==Module.ENVIRONMENT)throw new Error("The provided Module['ENVIRONMENT'] value is not valid. It must be one of: WEB|WORKER|NODE|SHELL.");ENVIRONMENT_IS_SHELL=!0}else ENVIRONMENT_IS_WEB="object"==typeof window,ENVIRONMENT_IS_WORKER="function"==typeof importScripts,ENVIRONMENT_IS_NODE="object"==typeof process&&"function"==typeof require&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER,ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;if(ENVIRONMENT_IS_NODE)Module.print||(Module.print=console.log),Module.printErr||(Module.printErr=console.warn),Module.read=function(e,r){nodeFS||(nodeFS=require("fs")),nodePath||(nodePath=require("path")),e=nodePath.normalize(e);var i=nodeFS.readFileSync(e);return r?i:i.toString()},Module.readBinary=function(e){var r=Module.read(e,!0);return r.buffer||(r=new Uint8Array(r)),assert(r.buffer),r},Module.load=function(e){globalEval(read(e))},Module.thisProgram||(process.argv.length>1?Module.thisProgram=process.argv[1].replace(/\\/g,"/"):Module.thisProgram="unknown-program"),Module.arguments=process.argv.slice(2),"undefined"!=typeof module&&(module.exports=Module),process.on("uncaughtException",(function(e){if(!(e instanceof ExitStatus))throw e})),Module.inspect=function(){return"[Emscripten Module object]"};else if(ENVIRONMENT_IS_SHELL)Module.print||(Module.print=print),"undefined"!=typeof printErr&&(Module.printErr=printErr),"undefined"!=typeof read?Module.read=read:Module.read=function(){throw"no read() available"},Module.readBinary=function(e){if("function"==typeof readbuffer)return new Uint8Array(readbuffer(e));var r=read(e,"binary");return assert("object"==typeof r),r},"undefined"!=typeof scriptArgs?Module.arguments=scriptArgs:void 0!==arguments&&(Module.arguments=arguments),"function"==typeof quit&&(Module.quit=function(e,r){quit(e)});else{if(!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER)throw"Unknown runtime environment. Where are we?";if(Module.read=function(e){var r=new XMLHttpRequest;return r.open("GET",e,!1),r.send(null),r.responseText},ENVIRONMENT_IS_WORKER&&(Module.readBinary=function(e){var r=new XMLHttpRequest;return r.open("GET",e,!1),r.responseType="arraybuffer",r.send(null),new Uint8Array(r.response)}),Module.readAsync=function(e,r,i){var n=new XMLHttpRequest;n.open("GET",e,!0),n.responseType="arraybuffer",n.onload=function(){200==n.status||0==n.status&&n.response?r(n.response):i()},n.onerror=i,n.send(null)},void 0!==arguments&&(Module.arguments=arguments),"undefined"!=typeof console)Module.print||(Module.print=function(e){console.log(e)}),Module.printErr||(Module.printErr=function(e){console.warn(e)});else{var TRY_USE_DUMP=!1;Module.print||(Module.print=TRY_USE_DUMP&&"undefined"!=typeof dump?function(e){dump(e)}:function(e){})}ENVIRONMENT_IS_WORKER&&(Module.load=importScripts),void 0===Module.setWindowTitle&&(Module.setWindowTitle=function(e){document.title=e})}function globalEval(e){eval.call(null,e)}for(var key in!Module.load&&Module.read&&(Module.load=function(e){globalEval(Module.read(e))}),Module.print||(Module.print=function(){}),Module.printErr||(Module.printErr=Module.print),Module.arguments||(Module.arguments=[]),Module.thisProgram||(Module.thisProgram="./this.program"),Module.quit||(Module.quit=function(e,r){throw r}),Module.print=Module.print,Module.printErr=Module.printErr,Module.preRun=[],Module.postRun=[],moduleOverrides)moduleOverrides.hasOwnProperty(key)&&(Module[key]=moduleOverrides[key]);moduleOverrides=void 0;var Runtime={setTempRet0:function(e){return tempRet0=e,e},getTempRet0:function(){return tempRet0},stackSave:function(){return ST
/**
     * @license
     *
     * Copyright (c) 2014, Brandon Jones. All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without modification,
     * are permitted provided that the following conditions are met:
     *
     *  * Redistributions of source code must retain the above copyright notice, this
     *  list of conditions and the following disclaimer.
     *  * Redistributions in binary form must reproduce the above copyright notice,
     *  this list of conditions and the following disclaimer in the documentation
     *  and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */DXT_FORMAT_MAP[CRN_FORMAT.cCRNFmtDXT1]=PixelFormat.PixelFormat.RGB_DXT1,DXT_FORMAT_MAP[CRN_FORMAT.cCRNFmtDXT3]=PixelFormat.PixelFormat.RGBA_DXT3,DXT_FORMAT_MAP[CRN_FORMAT.cCRNFmtDXT5]=PixelFormat.PixelFormat.RGBA_DXT5;var cachedDstSize=0;function arrayBufferCopy(e,r,i,n){var t,o=i/4,a=n%4,u=new Uint32Array(e.buffer,0,(n-a)/4),f=new Uint32Array(r.buffer);for(t=0;t<u.length;t++)f[o+t]=u[t];for(t=n-a;t<n;t++)r[i+t]=e[t]}function transcodeCRNToDXT(e,r){var i=e.byteLength,n=new Uint8Array(e),t=crunch._malloc(i);arrayBufferCopy(n,crunch.HEAPU8,t,i);var o=crunch._crn_get_dxt_format(t,i),a=DXT_FORMAT_MAP[o];if(!when.defined(a))throw new RuntimeError.RuntimeError("Unsupported compressed format.");var u,f=crunch._crn_get_levels(t,i),l=crunch._crn_get_width(t,i),c=crunch._crn_get_height(t,i),s=0;for(u=0;u<f;++u)s+=PixelFormat.PixelFormat.compressedTextureSizeInBytes(a,l>>u,c>>u);cachedDstSize<s&&(when.defined(dst)&&crunch._free(dst),dst=crunch._malloc(s),dxtData=new Uint8Array(crunch.HEAPU8.buffer,dst,s),cachedDstSize=s),crunch._crn_decompress(t,i,dst,s,0,f),crunch._free(t);var d=PixelFormat.PixelFormat.compressedTextureSizeInBytes(a,l,c),_=dxtData.subarray(0,d),E=new Uint8Array(d);return E.set(_,0),r.push(E.buffer),new CompressedTextureBuffer.CompressedTextureBuffer(a,l,c,E)}var transcodeCRNToDXTprevious=createTaskProcessorWorker(transcodeCRNToDXT);return transcodeCRNToDXTprevious}));