297 lines
9.5 KiB
JavaScript
Executable File
297 lines
9.5 KiB
JavaScript
Executable File
import canvasContext from "./canvas-context";
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const downloadedTextures = {};
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const downloadingTextures = {};
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const downloadFailedTextures = {};
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let hasCheckSupportedExtensions = false;
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//不让外部使用
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if(typeof window !='undefined' && window.indexedDB){
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Object.defineProperty(window, 'indexedDB', {
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get() { return; },
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set() {},
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enumerable : true,
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configurable : true
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});
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}
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const err = function(msg){GameGlobal.manager.printErr(msg)};
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const PotList = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096];
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const UseDXT5 = "$UseDXT5$";
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let isStopDownloadTexture = false;
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let cachedDownloadTask = [];
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wx.stopDownloadTexture = function(){
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isStopDownloadTexture = true;
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}
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wx.starDownloadTexture = function(){
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isStopDownloadTexture = false;
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while (cachedDownloadTask.length>0){
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var task = cachedDownloadTask.shift();
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mod.WXDownloadTexture(task.path,task.width,task.height,task.callback);
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}
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}
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const mod = {
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getSupportedExtensions(){
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if(hasCheckSupportedExtensions){
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return GameGlobal.TextureCompressedFormat;
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}
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const list = canvas.getContext(GameGlobal.managerConfig.contextConfig.contextType == 2 ? 'webgl2': 'webgl').getSupportedExtensions();
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if(list.indexOf('WEBGL_compressed_texture_astc')!==-1){
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GameGlobal.TextureCompressedFormat = 'astc';
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}else if(list.indexOf('WEBGL_compressed_texture_etc')!==-1){
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GameGlobal.TextureCompressedFormat = 'etc2';
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}else if(list.indexOf('WEBGL_compressed_texture_pvrtc')!==-1){
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GameGlobal.TextureCompressedFormat = 'pvr';
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}else if(list.indexOf('WEBGL_compressed_texture_s3tc') !==-1 && UseDXT5){
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GameGlobal.TextureCompressedFormat = 'dds';
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}/*else if(list.indexOf('WEBGL_compressed_texture_etc1')!==-1){ //ect1不支持透明通道，先屏蔽
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GameGlobal.TextureCompressedFormat = 'etc1';
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}*/else{
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GameGlobal.TextureCompressedFormat = '';
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}
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if(list.indexOf('WEBGL_compressed_texture_etc')!==-1){
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GameGlobal.TextureEtc2Supported = true;
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}
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if(list.indexOf('WEBGL_compressed_texture_pvrtc')!==-1){
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GameGlobal.TexturePVRTCSupported = true;
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}
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hasCheckSupportedExtensions = true;
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return GameGlobal.TextureCompressedFormat;
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},
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getRemoteImageFile(path,width,height){
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if(!GameGlobal.TextureCompressedFormat || (GameGlobal.TextureCompressedFormat == 'pvr' && (width != height || PotList.indexOf(width)===-1)) || (GameGlobal.TextureCompressedFormat == 'dds' && (width%4!==0 || height%4!==0))){
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mod.downloadFile(path,width,height)
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}else{
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mod.requestFile(path,width,height);
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}
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},
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reTryRemoteImageFile(path,width,height){
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var cid = path;
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if(!downloadFailedTextures[cid]){
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downloadFailedTextures[cid] = {
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count:0,
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path,width,height
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};
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}
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if(downloadFailedTextures[cid].count > 4){
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return;
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}
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setTimeout(()=>{
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mod.getRemoteImageFile(path,width,height)
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}, Math.pow(2,downloadFailedTextures[cid].count) * 250);
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downloadFailedTextures[cid].count++;
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},
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requestFile(path,width,height){
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var cid = path;
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var format = GameGlobal.TextureCompressedFormat;
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var url = GameGlobal.manager.assetPath.replace(/\/$/,'')+'/Textures/'+format+'/'+width+"/"+path+'.txt';
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var xmlhttp = new GameGlobal.unityNamespace.UnityLoader.UnityCache.XMLHttpRequest();
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xmlhttp.responseType = 'arraybuffer';
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xmlhttp.open("GET",url,true);
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xmlhttp.onload = function(){
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let res = xmlhttp;
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if(res.status === 200){
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downloadedTextures[cid] = {
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data:res.response,
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tmpFile:''
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};
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if(downloadingTextures[cid] instanceof Array){
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downloadingTextures[cid].forEach(v=>v());
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}else{
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downloadingTextures[cid] && downloadingTextures[cid]();
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}
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delete downloadingTextures[cid];
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delete downloadFailedTextures[cid];
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delete downloadedTextures[cid].data;
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/*
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const fileManager = wx.getFileSystemManager();
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const tmpFilePath = wx.env.USER_DATA_PATH+"/"+cid+'.txt';
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fileManager.writeFile({
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filePath:tmpFilePath,
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data:res.response,
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success(){
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downloadedTextures[cid].tmpFile = tmpFilePath;
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},
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fail(err){
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console.error(err,"压缩纹理保存失败！id:"+textureId);
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delete GameGlobal.DownloadedTextures[cid]
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}
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}); */
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}else{
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// err("压缩纹理下载失败！url:"+url);
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mod.reTryRemoteImageFile(path,width,height);
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}
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};
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xmlhttp.onerror = function(){
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// err("压缩纹理下载失败！url:"+url);
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mod.reTryRemoteImageFile(path,width,height);
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}
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xmlhttp.send(null);
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},
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downloadFile(path,width,height){
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var url = GameGlobal.manager.assetPath.replace(/\/$/,'')+'/Textures/png/'+width+"/"+path+'.png';
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var cid = path;
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var image = wx.createImage();
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image.crossOrigin = '';
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image.src = url;
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image.onload = function () {
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downloadedTextures[cid] = {
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data:image,
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tmpFile:''
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};
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if(downloadingTextures[cid] instanceof Array){
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downloadingTextures[cid].forEach(v=>v());
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}else{
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downloadingTextures[cid] && downloadingTextures[cid]();
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}
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delete downloadingTextures[cid];
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delete downloadFailedTextures[cid];
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delete downloadedTextures[cid];
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};
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image.onerror = function(){
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mod.reTryRemoteImageFile(path,width,height);
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};
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},
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readFile(textureId,callback,width,height){
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var cid = textureId;
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const fileManager = wx.getFileSystemManager();
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const filePath = wx.env.USER_DATA_PATH+"/"+cid+'.txt';
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fileManager.readFile({
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filePath,
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success(res){
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if(!GameGlobal.TextureCompressedFormat){
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var image = wx.createImage();
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image.src = filePath;
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image.onload = function () {
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handleLoaded(image);
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delete downloadedTextures[cid];
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}
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}else{
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handleLoaded();
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delete downloadedTextures[cid].data;
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}
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function handleLoaded(image){
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downloadedTextures[cid] = {
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data:image || res.data,
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tmpFile:filePath
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};
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callback();
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}
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},
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fail(err){
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err(err,"读取压缩纹理失败！id:"+cid);
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handleError();
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}
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});
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function handleError(){
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var path;
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if(type === "Texture"){
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path = GameGlobal.TextureConfig[textureId].p;
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}else{
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path = GameGlobal.SpriteAtlasConfig[textureId].p;
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}
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if(downloadingTextures[cid]){
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downloadingTextures[cid].push(callback);
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}else{
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downloadingTextures[cid] = [callback];
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}
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mod.getRemoteImageFile(textureId,type,path.replace(/\\/g,'/'),width,height);
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}
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},
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WXDownloadTexture(path,width,height,callback){
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if(!hasCheckSupportedExtensions){
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mod.getSupportedExtensions();
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}
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var cid = path;
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/*
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if(downloadedTextures[cid]){
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if(downloadedTextures[cid].data){
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callback();
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}else{
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mod.readFile(id,type,callback,width,height);
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}
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}else */
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if(isStopDownloadTexture){
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cachedDownloadTask.push({
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path,width,height,callback
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});
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return;
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}
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if(downloadingTextures[cid]){
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downloadingTextures[cid].push(callback);
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}else{
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downloadingTextures[cid] = [callback];
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mod.getRemoteImageFile(path,width,height);
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}
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}
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};
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GameGlobal.DownloadedTextures = downloadedTextures;
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GameGlobal.TextureCompressedFormat = ''; //支持的压缩格式
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GameGlobal.ParalleLDownloadTexture = function(filename){
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filename = filename.replace(GameGlobal.managerConfig.DATA_CDN,'').replace(/^\//,'');
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filename = "/"+filename;
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if (GameGlobal.TEXTURE_BUNDLES[filename]) {
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GameGlobal.TEXTURE_BUNDLES[filename].forEach(function (v) {
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var f = GameGlobal.TextureCompressedFormat;
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if (!f) {
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var p = GameGlobal.manager.assetPath + '/Textures/png/' + v.w + '/' + v.p + '.png';
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var image = wx.createImage();
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image.crossOrigin = '';
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image.src = p
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} else if (f != 'pvr') {
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var http = new GameGlobal.unityNamespace.UnityLoader.UnityCache.XMLHttpRequest();
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var p = GameGlobal.manager.assetPath + '/Textures/' + f + '/' + v.w + '/' + v.p + '.txt';
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http.open('GET', p, true);
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http.responseType = 'arraybuffer';
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http.send()
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}
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})
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}
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}
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export default {
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WXDownloadTexture:mod.WXDownloadTexture
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}
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canvasContext.addCreatedListener(()=>{
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if(GameGlobal.USED_TEXTURE_COMPRESSION){
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mod.getSupportedExtensions();
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if(GameGlobal.TextureCompressedFormat == '' || GameGlobal.TextureCompressedFormat == "pvr"){
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wx.getSystemInfo({
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success(res){
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if(res.platform == 'ios'){
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wx.showModal({
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title: '提示',
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content: "当前操作系统版本过低，建议您升级至最新版本。",
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});
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}
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}
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});
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}
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}
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wx.onNetworkStatusChange(function(res){
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if(res.isConnected){
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for(var key in downloadFailedTextures){
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var v = downloadFailedTextures[key];
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if(v.count >4){
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mod.getRemoteImageFile(v.path,v.width,v.height)
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}
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}
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}
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});
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});
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