public static UnityWebRequest LoadFromCacheOrDownload(string url, out bool disposable)
{
disposable = true;
if (url.StartsWith("jar:") == true)
{
return(UnityWebRequest.Get(url));
}
var uri = new Uri();
if (!uri.Parse(url))
{
EB.Debug.LogError("LoadFromCacheOrDownload Parse Failed {0}", url);
return(null);
}
if (uri.Scheme == "file")
{
return(UnityWebRequest.Get(url));
}
// assume network
var fileName = GetCacheFile(url);
if (File.Exists(fileName))
{
var cachedPath = "file://" + fileName;
return(UnityWebRequest.Get(cachedPath));
}
// load it and save it to the cache
var www = UnityWebRequest.Get(url);
disposable = false;
EB.Debug.Log("Loading to Cache {0}", url);
_ActivelyLoading.Add(www);
Coroutines.Run(SaveToCache(url, www));
return(www);
}
/// <summary>
/// 异步加载Texture
/// </summary>
/// <param name="info"></param>
/// <returns></returns>
IEnumerator ProcessNextTexture(TextureInfo info)
{
string url = GetUrl(info.textureName);
// If we didn't find an url and our textures are prepended with our
// Bundles/UI/ path, strip it and look for the path again
if (string.IsNullOrEmpty(url))
{
url = GetUrl(info.textureName.Replace("Bundles/UI/", string.Empty));
}
#if TEXTUREPOOL_SPEW
EB.Debug.Log("TexturePoolManager - LOADING " + url);
#endif
// evict any old textures before moving on
Evict();
UnityWebRequest textureLoader = null;
bool disposable = true;
EB.Uri uri = new EB.Uri();
if (uri.Parse(url))
{
for (int i = 0; i < kRetryIntervals; ++i)
{
textureLoader = EB.Cache.LoadFromCacheOrDownload(url, out disposable);
if (textureLoader == null)
{
break;
}
yield return(textureLoader.SendWebRequest());
if (string.IsNullOrEmpty(textureLoader.error))
{
break;
}
else if (url.StartsWith("file://"))
{
// file error are going to make a difference with a retry
break;
}
#if UNITY_EDITOR
// Since all the texture are in Resources folder when running in editor, we don't want to delay this
if (Application.isEditor)
{
break;
}
#else
EB.Debug.LogWarning("COULD NOT FIND TEXTURE: " + url);
yield return(_waits[i]);
#endif
}
}
if (Application.isEditor)
{
yield return(new WaitForSeconds(0.15f));
}
if (textureLoader != null && (textureLoader.isHttpError || textureLoader.isNetworkError))
{
// If we loaded from cache or file, we want to mark the textures properly
// so they are destroyed or released properly later on
if (textureLoader.url.StartsWith("file://"))
{
info.source = TextureInfo.eTextureSource.Resources;
}
info.texture = DownloadHandlerTexture.GetContent(textureLoader);
info.texture.wrapMode = TextureWrapMode.Clamp;
info.texture.name = info.textureName;
info.successfullyLoaded = true;
info.DoCallbacks();
#if TEXTUREPOOL_SPEW
EB.Debug.LogWarning("ON-DEMAND LOAD FROM {0} THERE ARE NOW {1} IN THE POOL", url, _all.Count);
#endif
}
else
{
// Texture wasn't found in the bundle - Look for it in the resources folder only if in editor
// Resources load requires no extension present in the path name
string strippedPath = info.textureName.Replace(System.IO.Path.GetExtension(info.textureName), string.Empty);
info.texture = Resources.Load(strippedPath) as Texture2D;
if (info.texture == null)
{
EB.Debug.LogWarning("Texture not found at '{0}' or '{1}'", info.textureName, strippedPath);
}
else
{
info.texture.wrapMode = TextureWrapMode.Clamp;
info.texture.name = info.textureName;
info.source = TextureInfo.eTextureSource.Resources;
info.successfullyLoaded = true;
}
info.DoCallbacks();
}
if (textureLoader != null)
{
if (disposable == true)
{
textureLoader.Dispose();
}
else
{
EB.Cache.DisposeOnComplete(textureLoader);
}
}
--_concurrentRequests;
}
