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import Frozen from "../Core/Frozen.js"; import defined from "../Core/defined.js"; import DeveloperError from "../Core/DeveloperError.js"; import BufferLoader from "./BufferLoader.js"; import GltfBufferViewLoader from "./GltfBufferViewLoader.js"; import GltfDracoLoader from "./GltfDracoLoader.js"; import GltfImageLoader from "./GltfImageLoader.js"; import GltfIndexBufferLoader from "./GltfIndexBufferLoader.js"; import GltfJsonLoader from "./GltfJsonLoader.js"; import GltfTextureLoader from "./GltfTextureLoader.js"; import GltfVertexBufferLoader from "./GltfVertexBufferLoader.js"; import GltfSpzLoader from "./GltfSpzLoader.js"; import MetadataSchemaLoader from "./MetadataSchemaLoader.js"; import ResourceCacheKey from "./ResourceCacheKey.js"; import ResourceCacheStatistics from "./ResourceCacheStatistics.js"; /** * Cache for resources shared across 3D Tiles and glTF. * * @namespace ResourceCache * * @private */ function ResourceCache() {} ResourceCache.cacheEntries = {}; // Statistics about binary data stored in the resource cache ResourceCache.statistics = new ResourceCacheStatistics(); /** * A reference-counted cache entry. * * @param {ResourceLoader} resourceLoader The resource. * * @alias CacheEntry * @constructor * * @private */ function CacheEntry(resourceLoader) { this.referenceCount = 1; this.resourceLoader = resourceLoader; // For unit testing only this._statisticsPromise = undefined; } /** * Gets a resource from the cache. If the resource exists its reference count is * incremented. Otherwise, if no resource loader exists, undefined is returned. * * @param {string} cacheKey The cache key of the resource. * * @returns {ResourceLoader|undefined} The resource. * @private */ ResourceCache.get = function (cacheKey) { //>>includeStart('debug', pragmas.debug); Check.typeOf.string("cacheKey", cacheKey); //>>includeEnd('debug'); const cacheEntry = ResourceCache.cacheEntries[cacheKey]; if (defined(cacheEntry)) { ++cacheEntry.referenceCount; return cacheEntry.resourceLoader; } return undefined; }; /** * Adds it to the cache. * * @param {ResourceLoader} resourceLoader The resource. * @returns {ResourceLoader} The resource. * * @exception {DeveloperError} Resource with this cacheKey is already in the cache * @private */ ResourceCache.add = function (resourceLoader) { //>>includeStart('debug', pragmas.debug); Check.typeOf.object("resourceLoader", resourceLoader); //>>includeEnd('debug'); const cacheKey = resourceLoader.cacheKey; //>>includeStart('debug', pragmas.debug); Check.typeOf.string("options.resourceLoader.cacheKey", cacheKey); if (defined(ResourceCache.cacheEntries[cacheKey])) { throw new DeveloperError( `Resource with this cacheKey is already in the cache: ${cacheKey}`, ); } //>>includeEnd('debug'); ResourceCache.cacheEntries[cacheKey] = new CacheEntry(resourceLoader); return resourceLoader; }; /** * Unloads a resource from the cache. When the reference count hits zero the * resource is destroyed. * * @param {ResourceLoader} resourceLoader The resource. * * @exception {DeveloperError} Resource is not in the cache. * @exception {DeveloperError} Cannot unload resource that has no references. * @private */ ResourceCache.unload = function (resourceLoader) { //>>includeStart('debug', pragmas.debug); Check.typeOf.object("resourceLoader", resourceLoader); //>>includeEnd('debug'); const cacheKey = resourceLoader.cacheKey; const cacheEntry = ResourceCache.cacheEntries[cacheKey]; //>>includeStart('debug', pragmas.debug); if (!defined(cacheEntry)) { throw new DeveloperError(`Resource is not in the cache: ${cacheKey}`); } //>>includeEnd('debug'); --cacheEntry.referenceCount; if (cacheEntry.referenceCount === 0) { ResourceCache.statistics.removeLoader(resourceLoader); resourceLoader.destroy(); delete ResourceCache.cacheEntries[cacheKey]; } }; /** * Gets an existing schema loader from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} [options.schema] An object that explicitly defines a schema JSON. Mutually exclusive with options.resource. * @param {Resource} [options.resource] The {@link Resource} pointing to the schema JSON. Mutually exclusive with options.schema. * * @returns {MetadataSchemaLoader} The cached schema resource. * * @exception {DeveloperError} One of options.schema and options.resource must be defined. * @private */ ResourceCache.getSchemaLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { schema, resource } = options; //>>includeStart('debug', pragmas.debug); Iif (defined(schema) === defined(resource)) { throw new DeveloperError( "One of options.schema and options.resource must be defined.", ); } //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getSchemaCacheKey({ schema: schema, resource: resource, }); let schemaLoader = ResourceCache.get(cacheKey); if (defined(schemaLoader)) { return schemaLoader; } schemaLoader = new MetadataSchemaLoader({ schema: schema, resource: resource, cacheKey: cacheKey, }); return ResourceCache.add(schemaLoader); }; /** * Gets an existing embedded buffer loader from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {Resource} options.parentResource The {@link Resource} containing the embedded buffer. * @param {number} options.bufferId A unique identifier of the embedded buffer within the parent resource. * @param {Uint8Array} [options.typedArray] The typed array containing the embedded buffer contents. * * @returns {BufferLoader} The cached buffer loader. * @private */ ResourceCache.getEmbeddedBufferLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { parentResource, bufferId, typedArray } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.parentResource", parentResource); Check.typeOf.number("options.bufferId", bufferId); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getEmbeddedBufferCacheKey({ parentResource: parentResource, bufferId: bufferId, }); let bufferLoader = ResourceCache.get(cacheKey); if (defined(bufferLoader)) { return bufferLoader; } //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.typedArray", typedArray); //>>includeEnd('debug'); bufferLoader = new BufferLoader({ typedArray: typedArray, cacheKey: cacheKey, }); return ResourceCache.add(bufferLoader); }; /** * Gets an existing external buffer from loader the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {Resource} options.resource The {@link Resource} pointing to the external buffer. * * @returns {BufferLoader} The cached buffer loader. * @private */ ResourceCache.getExternalBufferLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { resource } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.resource", resource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getExternalBufferCacheKey({ resource: resource, }); let bufferLoader = ResourceCache.get(cacheKey); if (defined(bufferLoader)) { return bufferLoader; } bufferLoader = new BufferLoader({ resource: resource, cacheKey: cacheKey, }); return ResourceCache.add(bufferLoader); }; /** * Gets an existing glTF JSON loader from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * @param {Uint8Array} [options.typedArray] The typed array containing the glTF contents. * @param {object} [options.gltfJson] The parsed glTF JSON contents. * * @returns {GltfJsonLoader} The cached glTF JSON loader. * @private */ ResourceCache.getGltfJsonLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltfResource, baseResource, typedArray, gltfJson } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getGltfCacheKey({ gltfResource: gltfResource, }); let gltfJsonLoader = ResourceCache.get(cacheKey); if (defined(gltfJsonLoader)) { return gltfJsonLoader; } gltfJsonLoader = new GltfJsonLoader({ resourceCache: ResourceCache, gltfResource: gltfResource, baseResource: baseResource, typedArray: typedArray, gltfJson: gltfJson, cacheKey: cacheKey, }); return ResourceCache.add(gltfJsonLoader); }; /** * Gets an existing glTF buffer view from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {number} options.bufferViewId The bufferView ID. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * * @returns {GltfBufferViewLoader} The cached buffer view loader. * @private */ ResourceCache.getBufferViewLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, bufferViewId, gltfResource, baseResource } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.number("options.bufferViewId", bufferViewId); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getBufferViewCacheKey({ gltf: gltf, bufferViewId: bufferViewId, gltfResource: gltfResource, baseResource: baseResource, }); let bufferViewLoader = ResourceCache.get(cacheKey); if (defined(bufferViewLoader)) { return bufferViewLoader; } bufferViewLoader = new GltfBufferViewLoader({ resourceCache: ResourceCache, gltf: gltf, bufferViewId: bufferViewId, gltfResource: gltfResource, baseResource: baseResource, cacheKey: cacheKey, }); return ResourceCache.add(bufferViewLoader); }; /** * Gets an existing Draco data from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {object} options.primitive The primitive containing the Draco extension. * @param {object} options.draco The Draco extension object. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * * @returns {GltfDracoLoader} The cached Draco loader. * @private */ ResourceCache.getDracoLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, primitive, draco, gltfResource, baseResource } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.object("options.primitive", primitive); Check.typeOf.object("options.draco", draco); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getDracoCacheKey({ gltf: gltf, draco: draco, gltfResource: gltfResource, baseResource: baseResource, }); let dracoLoader = ResourceCache.get(cacheKey); if (defined(dracoLoader)) { return dracoLoader; } dracoLoader = new GltfDracoLoader({ resourceCache: ResourceCache, gltf: gltf, primitive: primitive, draco: draco, gltfResource: gltfResource, baseResource: baseResource, cacheKey: cacheKey, }); return ResourceCache.add(dracoLoader); }; /** * Gets an existing SPZ loader from the cache, or creates a new loader if one does not already exist. * This loader is used to decode SPZ (Splat Point Cloud) data in glTF. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {object} options.primitive The primitive containing the SPZ extension. * @param {object} options.spz The SPZ extension object. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * * @return {GltfSpzLoader} The cached SPZ loader. @private * */ ResourceCache.getSpzLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, primitive, spz, gltfResource, baseResource } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.object("options.primitive", primitive); Check.typeOf.object("options.spz", spz); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getSpzCacheKey({ gltf: gltf, primitive: primitive, gltfResource: gltfResource, baseResource: baseResource, }); let spzLoader = ResourceCache.get(cacheKey); if (defined(spzLoader)) { return spzLoader; } spzLoader = new GltfSpzLoader({ resourceCache: ResourceCache, gltf: gltf, primitive: primitive, spz: spz, gltfResource: gltfResource, baseResource: baseResource, cacheKey: cacheKey, }); return ResourceCache.add(spzLoader); }; /** * Gets an existing glTF vertex buffer from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * @param {FrameState} options.frameState The frame state. * @param {number} [options.bufferViewId] The bufferView ID corresponding to the vertex buffer. * @param {object} [options.primitive] The primitive containing the Draco extension. * @param {object} [options.draco] The Draco extension object. * @param {string} [options.attributeSemantic] The attribute semantic, e.g. POSITION or NORMAL. * @param {number} [options.accessorId] The accessor ID. * @param {boolean} [options.asynchronous=true] Determines if WebGL resource creation will be spread out over several frames or block until all WebGL resources are created. * @param {boolean} [options.dequantize=false] Determines whether or not the vertex buffer will be dequantized on the CPU. * @param {boolean} [options.loadBuffer=false] Load vertex buffer as a GPU vertex buffer. * @param {boolean} [options.loadTypedArray=false] Load vertex buffer as a typed array. * @exception {DeveloperError} One of options.bufferViewId and options.draco must be defined. * @exception {DeveloperError} When options.draco is defined options.attributeSemantic must also be defined. * @exception {DeveloperError} When options.draco is defined options.accessorId must also be defined. * * @returns {GltfVertexBufferLoader} The cached vertex buffer loader. * @private */ ResourceCache.getVertexBufferLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, gltfResource, baseResource, frameState, bufferViewId, primitive, draco, spz, attributeSemantic, accessorId, asynchronous = true, dequantize = false, loadBuffer = false, loadTypedArray = false, } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); Check.typeOf.object("options.frameState", frameState); if (!loadBuffer && !loadTypedArray) { throw new DeveloperError( "At least one of loadBuffer and loadTypedArray must be true.", ); } const hasBufferViewId = defined(bufferViewId); const hasPrimitive = defined(primitive); const hasDraco = hasDracoCompression(draco, attributeSemantic); const hasAttributeSemantic = defined(attributeSemantic); const hasAccessorId = defined(accessorId); const hasSpz = defined(spz); if (hasBufferViewId === (hasDraco !== hasSpz)) { throw new DeveloperError( "One of options.bufferViewId, options.draco, or options.spz must be defined.", ); } Iif (hasDraco && !hasAttributeSemantic) { throw new DeveloperError( "When options.draco is defined options.attributeSemantic must also be defined.", ); } if (hasDraco && !hasAccessorId) { throw new DeveloperError( "When options.draco is defined options.hasAccessorId must also be defined.", ); } if (hasDraco && !hasPrimitive) { throw new DeveloperError( "When options.draco is defined options.primitive must also be defined.", ); } if (hasDraco) { Check.typeOf.object("options.draco", draco); Check.typeOf.string("options.attributeSemantic", attributeSemantic); Check.typeOf.number("options.accessorId", accessorId); } //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getVertexBufferCacheKey({ gltf: gltf, gltfResource: gltfResource, baseResource: baseResource, frameState: frameState, bufferViewId: bufferViewId, draco: draco, spz: spz, attributeSemantic: attributeSemantic, dequantize: dequantize, loadBuffer: loadBuffer, loadTypedArray: loadTypedArray, }); let vertexBufferLoader = ResourceCache.get(cacheKey); if (defined(vertexBufferLoader)) { return vertexBufferLoader; } vertexBufferLoader = new GltfVertexBufferLoader({ resourceCache: ResourceCache, gltf: gltf, gltfResource: gltfResource, baseResource: baseResource, bufferViewId: bufferViewId, primitive: primitive, draco: draco, spz: spz, attributeSemantic: attributeSemantic, accessorId: accessorId, cacheKey: cacheKey, asynchronous: asynchronous, dequantize: dequantize, loadBuffer: loadBuffer, loadTypedArray: loadTypedArray, }); return ResourceCache.add(vertexBufferLoader); }; function hasDracoCompression(draco, semantic) { return ( defined(draco) && defined(draco.attributes) && defined(draco.attributes[semantic]) ); } /** * Gets an existing glTF index buffer from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {number} options.accessorId The accessor ID corresponding to the index buffer. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * @param {FrameState} options.frameState The frame state. * @param {object} [options.primitive] The primitive containing the Draco extension. * @param {object} [options.draco] The Draco extension object. * @param {boolean} [options.asynchronous=true] Determines if WebGL resource creation will be spread out over several frames or block until all WebGL resources are created. * @param {boolean} [options.loadBuffer=false] Load index buffer as a GPU index buffer. * @param {boolean} [options.loadTypedArray=false] Load index buffer as a typed array. * @returns {GltfIndexBufferLoader} The cached index buffer loader. * @private */ ResourceCache.getIndexBufferLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, accessorId, gltfResource, baseResource, frameState, primitive, draco, asynchronous = true, loadBuffer = false, loadTypedArray = false, } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.number("options.accessorId", accessorId); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); Check.typeOf.object("options.frameState", frameState); if (!loadBuffer && !loadTypedArray) { throw new DeveloperError( "At least one of loadBuffer and loadTypedArray must be true.", ); } //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getIndexBufferCacheKey({ gltf: gltf, accessorId: accessorId, gltfResource: gltfResource, baseResource: baseResource, frameState: frameState, draco: draco, loadBuffer: loadBuffer, loadTypedArray: loadTypedArray, }); let indexBufferLoader = ResourceCache.get(cacheKey); if (defined(indexBufferLoader)) { return indexBufferLoader; } indexBufferLoader = new GltfIndexBufferLoader({ resourceCache: ResourceCache, gltf: gltf, accessorId: accessorId, gltfResource: gltfResource, baseResource: baseResource, primitive: primitive, draco: draco, cacheKey: cacheKey, asynchronous: asynchronous, loadBuffer: loadBuffer, loadTypedArray: loadTypedArray, }); return ResourceCache.add(indexBufferLoader); }; /** * Gets an existing glTF image from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {number} options.imageId The image ID. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * * @returns {GltfImageLoader} The cached image loader. * @private */ ResourceCache.getImageLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, imageId, gltfResource, baseResource } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.number("options.imageId", imageId); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getImageCacheKey({ gltf: gltf, imageId: imageId, gltfResource: gltfResource, baseResource: baseResource, }); let imageLoader = ResourceCache.get(cacheKey); if (defined(imageLoader)) { return imageLoader; } imageLoader = new GltfImageLoader({ resourceCache: ResourceCache, gltf: gltf, imageId: imageId, gltfResource: gltfResource, baseResource: baseResource, cacheKey: cacheKey, }); return ResourceCache.add(imageLoader); }; /** * Gets an existing glTF texture from the cache, or creates a new loader if one does not already exist. * * @param {object} options Object with the following properties: * @param {object} options.gltf The glTF JSON. * @param {object} options.textureInfo The texture info object. * @param {Resource} options.gltfResource The {@link Resource} containing the glTF. * @param {Resource} options.baseResource The {@link Resource} that paths in the glTF JSON are relative to. * @param {SupportedImageFormats} options.supportedImageFormats The supported image formats. * @param {FrameState} options.frameState The frame state. * @param {boolean} [options.asynchronous=true] Determines if WebGL resource creation will be spread out over several frames or block until all WebGL resources are created. * * @returns {GltfTextureLoader} The cached texture loader. * @private */ ResourceCache.getTextureLoader = function (options) { options = options ?? Frozen.EMPTY_OBJECT; const { gltf, textureInfo, gltfResource, baseResource, supportedImageFormats, frameState, asynchronous = true, } = options; //>>includeStart('debug', pragmas.debug); Check.typeOf.object("options.gltf", gltf); Check.typeOf.object("options.textureInfo", textureInfo); Check.typeOf.object("options.gltfResource", gltfResource); Check.typeOf.object("options.baseResource", baseResource); Check.typeOf.object("options.supportedImageFormats", supportedImageFormats); Check.typeOf.object("options.frameState", frameState); //>>includeEnd('debug'); const cacheKey = ResourceCacheKey.getTextureCacheKey({ gltf: gltf, textureInfo: textureInfo, gltfResource: gltfResource, baseResource: baseResource, supportedImageFormats: supportedImageFormats, frameState: frameState, }); let textureLoader = ResourceCache.get(cacheKey); if (defined(textureLoader)) { return textureLoader; } textureLoader = new GltfTextureLoader({ resourceCache: ResourceCache, gltf: gltf, textureInfo: textureInfo, gltfResource: gltfResource, baseResource: baseResource, supportedImageFormats: supportedImageFormats, cacheKey: cacheKey, asynchronous: asynchronous, }); return ResourceCache.add(textureLoader); }; /** * Unload everything from the cache. This is used for unit testing. * * @private */ ResourceCache.clearForSpecs = function () { // Unload in the order below. This prevents an unload function from unloading // a resource that has already been unloaded. const precedence = [ GltfVertexBufferLoader, GltfIndexBufferLoader, GltfDracoLoader, GltfTextureLoader, GltfImageLoader, GltfBufferViewLoader, BufferLoader, MetadataSchemaLoader, GltfJsonLoader, ]; let cacheKey; const cacheEntries = ResourceCache.cacheEntries; const cacheEntriesSorted = []; for (cacheKey in cacheEntries) { Eif (cacheEntries.hasOwnProperty(cacheKey)) { cacheEntriesSorted.push(cacheEntries[cacheKey]); } } cacheEntriesSorted.sort(function (a, b) { const indexA = precedence.indexOf(a.resourceLoader.constructor); const indexB = precedence.indexOf(b.resourceLoader.constructor); return indexA - indexB; }); const cacheEntriesLength = cacheEntriesSorted.length; for (let i = 0; i < cacheEntriesLength; ++i) { const cacheEntry = cacheEntriesSorted[i]; cacheKey = cacheEntry.resourceLoader.cacheKey; Eif (defined(cacheEntries[cacheKey])) { cacheEntry.resourceLoader.destroy(); delete cacheEntries[cacheKey]; } } ResourceCache.statistics.clear(); }; export default ResourceCache; |