mirror of
https://github.com/EmulatorJS/EmulatorJS.git
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Implement caching system with IndexedDB support and add getAll method to EJS_STORAGE
- Added `getAll` method to `EJS_STORAGE` for retrieving all stored items. - Enabled database usage in `index.html` by setting `EJS_disableDatabases` to false. - Introduced a comprehensive caching system in `CACHING.md`, detailing architecture, operations, and best practices. - Created `EJS_Cache` class for managing cached files, including size and age constraints. - Implemented `EJS_CacheItem` and `EJS_FileItem` classes for structured cache items. - Added `test_rom_cache.html` for testing ROM caching functionality.
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Michael Green
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CACHING.md
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250
CACHING.md
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@ -0,0 +1,250 @@
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# EmulatorJS Caching System
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## Overview
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EmulatorJS implements a sophisticated multi-layer caching system designed to optimize performance by minimizing redundant downloads and decompression operations. The system combines browser-native HTTP caching with a custom decompression cache to provide fast loading times for emulator cores, ROMs, BIOS files, and other assets.
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## High-Level Architecture
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### Two-Layer Caching Strategy
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1. **Browser HTTP Cache (Layer 1)**
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- Handles file-level caching using standard HTTP cache headers
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- Caches compressed files (ZIP, 7Z, RAR) and uncompressed files
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- Managed automatically by the browser
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- Provides conditional requests (If-Modified-Since, ETag) for cache validation
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2. **Decompression Cache (Layer 2)**
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- Custom IndexedDB-based cache for decompressed content
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- Stores the results of expensive decompression operations
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- Prevents re-decompression of previously processed archives
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- Configurable size limits and expiration policies
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### Cache Flow
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```
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Download Request → Browser Cache Check → File Downloaded/Retrieved
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↓
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Decompression Required? → Decompression Cache Check → Content Extracted
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↓
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File System Operations → Game Launch
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```
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## Detailed Implementation
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### Browser Cache Integration
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EmulatorJS leverages the browser's built-in HTTP caching mechanisms:
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- **File Downloads**: All file downloads use standard HTTP requests that respect cache headers
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- **Conditional Requests**: The system performs HEAD requests to validate cached files against server versions
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- **Cache Invalidation**: Automatically detects updated files on the server through ETag/Last-Modified headers
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### Decompression Cache (EJS_Cache)
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#### Storage Backend
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- **Technology**: IndexedDB via custom `EJS_STORAGE` wrapper
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- **Database**: `EJS_decompression_cache`
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- **Object Store**: `cache_items`
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- **Key Structure**: `compression_{hash}_{size}` format
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#### Cache Key Generation
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```javascript
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// Hash calculation for cache key
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let hash = 0;
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for (let i = 0; i < dataArray.length; i++) {
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hash = ((hash << 5) - hash + dataArray[i]) & 0xffffffff;
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}
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const cacheKey = `compression_${hash}_${dataArray.length}`;
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```
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#### Cache Configuration
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- **Default Size Limit**: 4GB (4,294,967,296 bytes)
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- **Default Expiration**: 5 days (432,000,000 milliseconds)
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- **Storage Location**: Browser's IndexedDB
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- **Cleanup Policy**: LRU (Least Recently Used) with size-based eviction
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#### Cache Item Structure
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```javascript
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class EJS_CacheItem {
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constructor(key, files, timestamp, type = 'unknown', filename = null) {
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this.key = key; // Unique identifier
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this.files = files; // Array of EJS_FileItem objects
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this.timestamp = timestamp; // Creation/access time
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this.type = type; // Type of cached content (core, ROM, BIOS, etc.)
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this.filename = filename; // Original filename
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}
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}
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class EJS_FileItem {
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constructor(filename, bytes) {
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this.filename = filename; // Original filename in archive
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this.bytes = bytes; // Uint8Array of file content
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}
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}
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```
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### File Type Handling
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#### Core Files (.wasm, .js)
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- **Download**: Browser cache handles file-level caching
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- **Decompression**: Decompression cache stores extracted core files
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- **Validation**: HEAD requests check for server updates
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- **Storage**: No additional IndexedDB storage (removed in favor of browser cache)
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#### ROM Files (.zip, .7z, .rar, .iso, .bin, etc.)
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- **Download**: Browser cache for compressed archives
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- **Decompression**: Callback-based extraction with cache storage
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- **File Handling**: Multiple files extracted and cached individually
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- **Game Selection**: Automatic selection of primary ROM file
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#### BIOS Files
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- **Download**: Browser cache for compressed/uncompressed files
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- **Decompression**: Same cache mechanism as ROM files
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- **Extraction**: Optional based on `dontExtractBIOS` configuration
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### Cache Operations
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#### checkCompression() Method
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The core caching logic handles both Promise-based and callback-based decompression:
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```javascript
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checkCompression(data, msg, fileCbFunc) {
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// Generate cache key from data hash
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const cacheKey = `compression_${hash}_${dataArray.length}`;
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// Check cache first
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const cachedItem = await this.storageCache.get(cacheKey);
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if (cachedItem) {
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// Cache HIT: Return cached files
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return cached_files;
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}
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// Cache MISS: Decompress and store
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const decompressedFiles = await this.compression.decompress(data, updateMsg, callbackWrapper);
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// Store in cache for future use
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const cacheItem = new EJS_CacheItem(cacheKey, fileItems, Date.now(), 'decompressed', 'example-file.zip');
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await this.storageCache.put(cacheItem);
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return decompressedFiles;
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}
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```
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#### Cache Management
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- **Size Monitoring**: Tracks total cache size and evicts old items when limit exceeded
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- **Expiration Handling**: Removes items older than configured expiration time
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- **Manual Management**: UI provides cache inspection and clearing capabilities
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### Performance Optimizations
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#### Timing and Benchmarking
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Every cache operation includes detailed timing metrics:
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```javascript
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// Cache HIT example
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[EJS Cache] Cache HIT for 15.2MB data - Total: 23.45ms (hash: 12.1ms, cache lookup: 11.35ms)
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// Cache MISS example
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[EJS Cache] Cache MISS for 15.2MB data - Starting decompression (hash: 12.1ms, cache lookup: 8.2ms)
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[EJS Cache] Decompression complete for 15.2MB data - Total: 1847.3ms (decompression: 1789.2ms, cache store: 58.1ms)
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```
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#### Memory Management
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- **Streaming**: Large files processed in chunks where possible
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- **Worker Threads**: Decompression operations run in web workers to prevent UI blocking
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- **Cleanup**: Manual cleanup available through UI, automatic cleanup on startup and during size-based eviction
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### Cache Validation and Invalidation
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#### Server-Side Changes
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The system detects server-side file updates through:
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1. **HEAD Requests**: Check ETag and Last-Modified headers
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2. **Conditional Downloads**: Only download if file has changed
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3. **Cache Invalidation**: Remove stale cache entries when source files update
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#### Client-Side Management
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- **Manual Clearing**: Users can clear cache through settings menu
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- **Selective Removal**: Individual cache items can be removed
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- **Diagnostic Tools**: Cache contents viewable through management UI
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### Error Handling
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#### Network Failures
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- **Graceful Degradation**: Falls back to cached content when network unavailable
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- **Retry Logic**: Implements retry mechanisms for transient failures
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- **Error Reporting**: Detailed logging for debugging cache issues
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#### Cache Corruption
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- **Validation**: Verifies cache item integrity before use
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- **Recovery**: Automatically rebuilds corrupted cache entries
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- **Fallback**: Falls back to fresh downloads when cache fails
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### Migration and Compatibility
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#### Storage Migration
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The current implementation removes legacy storage systems:
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- **Removed**: Separate IndexedDB stores for cores, ROMs, and BIOS files
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- **Unified**: Single decompression cache for all compressed content
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- **Backward Compatibility**: Graceful handling of existing cache data
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#### Browser Compatibility
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- **IndexedDB Support**: Required for decompression cache
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- **HTTP Cache**: Utilizes standard browser caching mechanisms
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- **Fallback**: Degrades gracefully when storage unavailable
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## Configuration Options
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### EJS_Cache Parameters
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- `maxSize`: Maximum cache size in bytes (default: 4GB)
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- `maxAge`: Item expiration time in milliseconds (default: 5 days)
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- `storageKey`: IndexedDB database name
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### Runtime Configuration
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- `dontExtractRom`: Skip ROM extraction for certain cores
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- `dontExtractBIOS`: Skip BIOS extraction when not needed
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- `disableCue`: Control CUE file generation for disc-based games
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## Best Practices
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### For Developers
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1. **Monitor Cache Size**: Regular cleanup prevents storage quota issues
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2. **Handle Cache Failures**: Always provide fallback mechanisms
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3. **Optimize File Sizes**: Smaller files cache more efficiently
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4. **Use Appropriate Headers**: Set proper cache headers on servers
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### For Users
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1. **Clear Cache Periodically**: Prevents storage quota issues
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2. **Monitor Network Usage**: Cache reduces bandwidth consumption
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3. **Report Performance Issues**: Cache metrics help identify problems
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## Troubleshooting
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### Common Issues
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1. **Cache Not Working**: Check IndexedDB support and storage quota
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2. **Slow Loading**: Monitor cache hit/miss ratios in console
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3. **Storage Full**: Clear cache or increase browser storage quota
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4. **Stale Content**: Check cache expiration settings
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### Debug Information
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All cache operations log detailed information to the browser console:
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- Cache hit/miss status
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- Timing breakdowns
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- File sizes and counts
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- Error conditions
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## Cache Manager UI
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The Cache Manager provides a user interface for viewing and managing cached items. It displays a table with the following columns:
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- **Filename**: Original filename of the cached content
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- **Type**: Content type (core, ROM, BIOS, asset, etc.)
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- **Size**: Total size of cached files
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- **Last Used**: Relative time since last access (e.g., "2h ago", "3d ago")
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- **Action**: Remove button to delete individual cache entries
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The interface includes options to:
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- **Cleanup Now**: Remove old/excess items based on age and size constraints
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- **Clear All**: Remove all cached items
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This comprehensive caching system significantly improves EmulatorJS performance by eliminating redundant operations while maintaining data freshness and reliability.
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@ -4,6 +4,7 @@
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"nipplejs.js",
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"shaders.js",
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"storage.js",
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"cache.js",
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"gamepad.js",
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"GameManager.js",
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"socket.io.min.js",
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@ -98,7 +98,7 @@ class EJS_GameManager {
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const invalidCharacters = /[#<$+%>!`&*'|{}/\\?"=@:^\r\n]/ig;
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let name = this.EJS.config.externalFiles[key].split("/").pop().split("#")[0].split("?")[0].replace(invalidCharacters, "").trim();
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if (!name) return done();
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const files = await this.EJS.checkCompression(new Uint8Array(res.data), this.EJS.localization("Decompress Game Assets"));
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const files = await this.EJS.checkCompression(new Uint8Array(res.data), this.EJS.localization("Decompress Game Assets"), null, "asset", name);
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if (files["!!notCompressedData"]) {
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path += name;
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} else {
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@ -336,7 +336,7 @@ class EJS_GameManager {
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loadPpssppAssets() {
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return new Promise(resolve => {
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this.EJS.downloadFile("cores/ppsspp-assets.zip", null, false, { responseType: "arraybuffer", method: "GET" }).then((res) => {
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this.EJS.checkCompression(new Uint8Array(res.data), this.EJS.localization("Decompress Game Data")).then((pspassets) => {
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this.EJS.checkCompression(new Uint8Array(res.data), this.EJS.localization("Decompress Game Data"), null, "asset", "ppsspp-assets.zip").then((pspassets) => {
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if (pspassets === -1) {
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this.EJS.textElem.innerText = this.localization("Network Error");
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this.EJS.textElem.style.color = "red";
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232
data/src/cache.js
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data/src/cache.js
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/**
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* EJS_Cache
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* Manages a cache of files using IndexedDB for storage.
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*/
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class EJS_Cache {
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/**
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* Creates an instance of EJS_Cache.
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* @param {boolean} enabled - Whether caching is enabled.
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* @param {EJS_STORAGE} storage - Instance of EJS_STORAGE for IndexedDB operations.
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* @param {number} maxSizeMB - Maximum size of the cache in megabytes.
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* @param {number} maxAgeMins - Maximum age of items (in minutes) before they are cleaned up.
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*/
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constructor(enabled = true, storage, maxSizeMB = 4096, maxAgeMins = 7200) {
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this.enabled = enabled;
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this.storage = storage;
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this.maxSizeMB = maxSizeMB;
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this.maxAgeMins = maxAgeMins;
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this.minAgeMins = Math.max(60, maxAgeMins * 0.1); // Minimum 1 hour, or 10% of max age
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console.log('Initialized EJS_Cache with settings:', {
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enabled: this.enabled,
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storage: this.storage,
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enabledValue: enabled,
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maxSizeMB: this.maxSizeMB,
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maxAgeMins: this.maxAgeMins,
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minAgeMins: this.minAgeMins
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});
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}
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/**
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* Retrieves an item from the cache.
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* @param {*} key - The unique key identifying the cached item.
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* @returns {Promise<EJS_CacheItem|null>} - The cached item or null if not found.
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*/
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async get(key) {
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if (!this.enabled) return null;
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const item = await this.storage.get(key);
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// if the item exists, update its lastAccessed time and return cache item
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if (item) {
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item.lastAccessed = Date.now();
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await this.storage.put(key, item);
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}
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return item ? new EJS_CacheItem(item.key, item.files, item.added, item.type, item.filename) : null;
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}
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/**
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* Stores an item in the cache.
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* @param {EJS_CacheItem} item - The cache item to store.
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*/
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async put(item) {
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if (!this.enabled) return;
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// before putting, ensure item is of type EJS_CacheItem
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if (!(item instanceof EJS_CacheItem)) {
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throw new Error("Item must be an instance of EJS_CacheItem");
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}
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// check if the item exists, if so remove the existing item
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const existingItem = await this.get(item.key);
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if (existingItem) {
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await this.storage.remove(item.key);
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}
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// check that the size of item.files does not cause the cache to exceed maxSizeMB
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let currentSize = 0;
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const allItems = await this.storage.getAll();
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for (let i = 0; i < allItems.length; i++) {
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if (allItems[i] && allItems[i].files) {
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for (let j = 0; j < allItems[i].files.length; j++) {
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if (allItems[i].files[j] && allItems[i].files[j].bytes && typeof allItems[i].files[j].bytes.byteLength === "number") {
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currentSize += allItems[i].files[j].bytes.byteLength;
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}
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}
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}
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}
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if ((currentSize + item.size()) > (this.maxSizeMB * 1024 * 1024)) {
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// exceeded max size, keep removing oldest items until we are under maxSizeMB + the size of the new item
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const itemsToRemove = [];
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let sizeToFree = (currentSize + item.size()) - (this.maxSizeMB * 1024 * 1024);
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for (let i = 0; i < allItems.length; i++) {
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if (allItems[i] && allItems[i].files) {
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const itemSize = allItems[i].files.reduce((sum, file) => sum + (file.bytes ? file.bytes.byteLength : 0), 0);
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itemsToRemove.push({ item: allItems[i], size: itemSize });
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}
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}
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itemsToRemove.sort((a, b) => a.item.lastAccessed - b.item.lastAccessed); // oldest first
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for (let i = 0; i < itemsToRemove.length; i++) {
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if (sizeToFree <= 0) break;
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await this.storage.remove(itemsToRemove[i].item.key);
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sizeToFree -= itemsToRemove[i].size;
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}
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}
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await this.storage.put(item.key, {
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key: item.key,
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files: item.files,
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added: item.added,
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lastAccessed: item.lastAccessed,
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type: item.type,
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filename: item.filename
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});
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}
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/**
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* Deletes an item from the cache.
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* @param {string} key - The unique key identifying the cached item to delete.
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*/
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async delete(key) {
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// fail silently if the key does not exist
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try {
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await this.storage.remove(key);
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} catch (e) {
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console.error("Failed to delete cache item:", e);
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}
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}
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/**
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* Clears all items from the cache.
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*/
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async clear() {
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const allItems = await this.storage.getAll();
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for (let i = 0; i < allItems.length; i++) {
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await this.storage.remove(allItems[i].key);
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}
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}
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/**
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* Cleans up the cache by removing old or excess items based on size and age constraints.
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*/
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async cleanup() {
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if (!this.enabled) return;
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console.log('[EJS Cache] Starting cache cleanup...');
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const cleanupStartTime = performance.now();
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// get all items
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const allItems = await this.storage.getAll();
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const now = Date.now();
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// sort items by lastAccessed (oldest first)
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allItems.sort((a, b) => a.lastAccessed - b.lastAccessed);
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let currentSize = 0;
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let totalItems = allItems.length;
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const itemsToRemove = [];
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// Calculate current total size
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for (let i = 0; i < allItems.length; i++) {
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const item = allItems[i];
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const itemSize = item.files.reduce((sum, file) => sum + (file.bytes ? file.bytes.byteLength : 0), 0);
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currentSize += itemSize;
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const ageMins = (now - item.lastAccessed) / (1000 * 60);
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// Remove if too old OR if cache is over size limit and item is old enough
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if (ageMins > this.maxAgeMins || (currentSize > this.maxSizeMB * 1024 * 1024 && ageMins > this.minAgeMins)) {
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itemsToRemove.push({ key: item.key, size: itemSize, age: ageMins });
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currentSize -= itemSize;
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}
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}
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// remove items from storage
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for (const item of itemsToRemove) {
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await this.storage.remove(item.key);
|
||||
}
|
||||
|
||||
const cleanupTime = performance.now() - cleanupStartTime;
|
||||
const currentSizeMB = (currentSize / (1024 * 1024)).toFixed(2);
|
||||
const removedSizeMB = (itemsToRemove.reduce((sum, item) => sum + item.size, 0) / (1024 * 1024)).toFixed(2);
|
||||
|
||||
console.log(`[EJS Cache] Cleanup complete in ${cleanupTime.toFixed(2)}ms - Removed ${itemsToRemove.length}/${totalItems} items (${removedSizeMB}MB), ${currentSizeMB}MB remaining`);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* EJS_CacheItem
|
||||
* Represents a single cached item in the EJS_Cache system.
|
||||
* Contains metadata about the cached item. This class is an internal structure used by EJS_Cache.
|
||||
*/
|
||||
class EJS_CacheItem {
|
||||
/**
|
||||
* Creates an instance of EJS_CacheItem.
|
||||
* @param {string} key - Unique identifier for the cached item.
|
||||
* @param {EJS_FileItem[]} files - array of EJS_FileItem objects representing the files associated with this cache item.
|
||||
* @param {number} added - Timestamp (in milliseconds) when the item was added to the cache.
|
||||
* @param {string} type - The type of cached content (e.g., 'core', 'ROM', 'BIOS', 'decompressed').
|
||||
* @param {string} filename - The original filename of the cached content.
|
||||
*/
|
||||
constructor(key, files, added, type = 'unknown', filename = null) {
|
||||
this.key = key;
|
||||
this.files = files;
|
||||
this.added = added;
|
||||
this.lastAccessed = added;
|
||||
this.type = type;
|
||||
this.filename = filename || key; // fallback to key if no filename provided
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculates the total size of all files in this cache item.
|
||||
* @returns {number} - Total size in bytes.
|
||||
*/
|
||||
size() {
|
||||
let total = 0;
|
||||
for (let i = 0; i < this.files.length; i++) {
|
||||
if (this.files[i] && this.files[i].bytes && typeof this.files[i].bytes.byteLength === "number") {
|
||||
total += this.files[i].bytes.byteLength;
|
||||
}
|
||||
}
|
||||
return total;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* EJS_FileItem
|
||||
* Represents a single file stored in the cache. This class is an internal structure used by EJS_CacheItem.
|
||||
*/
|
||||
class EJS_FileItem {
|
||||
/**
|
||||
* Creates an instance of EJS_FileItem.
|
||||
* @param {string} filename - Name of the file.
|
||||
* @param {Uint8Array} bytes - Byte array representing the file's data.
|
||||
*/
|
||||
constructor(filename, bytes) {
|
||||
this.filename = filename;
|
||||
this.bytes = bytes;
|
||||
}
|
||||
}
|
||||
|
||||
window.EJS_Cache = EJS_Cache;
|
||||
window.EJS_CacheItem = EJS_CacheItem;
|
||||
window.EJS_FileItem = EJS_FileItem;
|
||||
@ -329,16 +329,23 @@ class EmulatorJS {
|
||||
this.isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
|
||||
if (this.config.disableDatabases) {
|
||||
this.storage = {
|
||||
rom: new window.EJS_DUMMYSTORAGE(),
|
||||
bios: new window.EJS_DUMMYSTORAGE(),
|
||||
core: new window.EJS_DUMMYSTORAGE()
|
||||
// Remove rom and bios storage - rely on browser cache for files and checkCompression for decompression
|
||||
}
|
||||
this.storageCache = new window.EJS_Cache(false, new window.EJS_DUMMYSTORAGE(), 1, 1);
|
||||
} else {
|
||||
this.storage = {
|
||||
rom: new window.EJS_STORAGE("EmulatorJS-roms", "rom"),
|
||||
bios: new window.EJS_STORAGE("EmulatorJS-bios", "bios"),
|
||||
core: new window.EJS_STORAGE("EmulatorJS-core", "core")
|
||||
// Remove rom and bios storage - rely on browser cache for files and checkCompression for decompression
|
||||
}
|
||||
this.storageCache = new window.EJS_Cache(true, new window.EJS_STORAGE("EmulatorJS-cache", "cache"), this.config.cacheMaxSizeMB || 4096, this.config.cacheMaxAgeMins || 7200);
|
||||
|
||||
// Run initial cleanup after cache initialization (non-blocking)
|
||||
setTimeout(async () => {
|
||||
try {
|
||||
await this.storageCache.cleanup();
|
||||
} catch (error) {
|
||||
console.error('[EJS Cache] Error during startup cleanup:', error);
|
||||
}
|
||||
}, 5000); // 5 second delay to avoid blocking startup
|
||||
}
|
||||
// This is not cache. This is save data
|
||||
this.storage.states = new window.EJS_STORAGE("EmulatorJS-states", "states");
|
||||
@ -559,139 +566,127 @@ class EmulatorJS {
|
||||
}
|
||||
return text;
|
||||
}
|
||||
checkCompression(data, msg, fileCbFunc) {
|
||||
if (!this.compression) this.compression = new window.EJS_COMPRESSION(this);
|
||||
if (msg) this.textElem.innerText = msg;
|
||||
|
||||
// Wrap logic in a Promise so we can perform async hashing + IndexedDB operations
|
||||
return new Promise((resolve, reject) => {
|
||||
const input = (data instanceof Uint8Array) ? data : new Uint8Array(data);
|
||||
const THIRTY_DAYS_MS = 30 * 24 * 60 * 60 * 1000;
|
||||
|
||||
const hashData = async (bytes) => {
|
||||
try {
|
||||
if (crypto && crypto.subtle && crypto.subtle.digest) {
|
||||
const digest = await crypto.subtle.digest('SHA-256', bytes.buffer.slice(bytes.byteOffset, bytes.byteOffset + bytes.byteLength));
|
||||
const arr = new Uint8Array(digest);
|
||||
let hex = '';
|
||||
for (let i = 0; i < arr.length; i++) hex += arr[i].toString(16).padStart(2, '0');
|
||||
return hex;
|
||||
}
|
||||
} catch (e) {
|
||||
if (this.debug) console.warn('Hash failed, skipping cache', e);
|
||||
checkCompression(data, msg, fileCbFunc, type = 'decompressed', filename = null) {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
const startTime = performance.now();
|
||||
const dataSizeMB = (data.byteLength / (1024 * 1024)).toFixed(2);
|
||||
|
||||
try {
|
||||
if (!this.compression) {
|
||||
this.compression = new window.EJS_COMPRESSION(this);
|
||||
}
|
||||
return null; // fallback disables caching
|
||||
};
|
||||
|
||||
const openDB = () => new Promise((res) => {
|
||||
if (!('indexedDB' in window)) { res(null); return; }
|
||||
const req = indexedDB.open('EJSDecompressCache', 1);
|
||||
req.onupgradeneeded = () => {
|
||||
const db = req.result;
|
||||
if (!db.objectStoreNames.contains('archives')) {
|
||||
const store = db.createObjectStore('archives', { keyPath: 'hash' });
|
||||
store.createIndex('lastUsed', 'lastUsed');
|
||||
}
|
||||
};
|
||||
req.onsuccess = () => res(req.result);
|
||||
req.onerror = () => res(null);
|
||||
});
|
||||
|
||||
const getRecord = (db, hash) => new Promise((res) => {
|
||||
if (!db || !hash) { res(null); return; }
|
||||
const tx = db.transaction('archives', 'readwrite'); // readwrite so we can update lastUsed or delete expired immediately
|
||||
const store = tx.objectStore('archives');
|
||||
const getReq = store.get(hash);
|
||||
getReq.onsuccess = () => {
|
||||
const record = getReq.result;
|
||||
if (!record) { res(null); return; }
|
||||
const now = Date.now();
|
||||
if ((now - record.lastUsed) > THIRTY_DAYS_MS) {
|
||||
// expired – remove
|
||||
store.delete(hash);
|
||||
res(null);
|
||||
return;
|
||||
}
|
||||
// update lastUsed before returning
|
||||
record.lastUsed = now;
|
||||
store.put(record);
|
||||
res(record);
|
||||
};
|
||||
getReq.onerror = () => res(null);
|
||||
});
|
||||
|
||||
const putRecord = (db, hash, filesArray) => new Promise((res) => {
|
||||
if (!db || !hash) { res(); return; }
|
||||
try {
|
||||
const now = Date.now();
|
||||
const tx = db.transaction('archives', 'readwrite');
|
||||
tx.objectStore('archives').put({ hash, created: now, lastUsed: now, files: filesArray });
|
||||
tx.oncomplete = () => res();
|
||||
tx.onerror = () => res();
|
||||
} catch (_) { res(); }
|
||||
});
|
||||
|
||||
const proceed = async () => {
|
||||
let hash = null;
|
||||
try {
|
||||
hash = await hashData(input);
|
||||
} catch (e) {
|
||||
if (this.debug) console.warn('Hashing threw unexpectedly, disabling cache for this run', e);
|
||||
hash = null; // disable caching this invocation
|
||||
|
||||
// Generate cache key based on data hash
|
||||
const hashStartTime = performance.now();
|
||||
const dataArray = new Uint8Array(data);
|
||||
let hash = 0;
|
||||
for (let i = 0; i < dataArray.length; i++) {
|
||||
hash = ((hash << 5) - hash + dataArray[i]) & 0xffffffff;
|
||||
}
|
||||
let db = null;
|
||||
if (hash) db = await openDB();
|
||||
if (hash && db) {
|
||||
const cached = await getRecord(db, hash);
|
||||
if (cached) {
|
||||
// Replay file callbacks if provided
|
||||
if (typeof fileCbFunc === 'function') {
|
||||
for (const f of cached.files) {
|
||||
fileCbFunc(f.name, new Uint8Array(f.data));
|
||||
}
|
||||
}
|
||||
if (msg) this.textElem.innerText = msg + ' (cached)';
|
||||
// Build return object consistent with original behavior
|
||||
let ret = {};
|
||||
if (typeof fileCbFunc === 'function') {
|
||||
for (const f of cached.files) ret[f.name] = true; // original decompress gives true when callback is used
|
||||
const cacheKey = `compression_${hash}_${dataArray.length}`;
|
||||
const hashTime = performance.now() - hashStartTime;
|
||||
|
||||
// Check if decompressed content is in cache
|
||||
const cacheCheckStartTime = performance.now();
|
||||
const cachedItem = await this.storageCache.get(cacheKey);
|
||||
const cacheCheckTime = performance.now() - cacheCheckStartTime;
|
||||
|
||||
if (cachedItem && cachedItem.files && cachedItem.files.length > 0) {
|
||||
const totalTime = performance.now() - startTime;
|
||||
console.log(`[EJS Cache] Cache HIT for ${dataSizeMB}MB data - Total: ${totalTime.toFixed(2)}ms (hash: ${hashTime.toFixed(2)}ms, cache lookup: ${cacheCheckTime.toFixed(2)}ms)`);
|
||||
|
||||
if (msg) {
|
||||
this.textElem.innerText = msg + " (cached)";
|
||||
}
|
||||
|
||||
// Convert cached files back to expected format
|
||||
const files = {};
|
||||
for (let i = 0; i < cachedItem.files.length; i++) {
|
||||
const file = cachedItem.files[i];
|
||||
if (typeof fileCbFunc === "function") {
|
||||
fileCbFunc(file.filename, file.bytes);
|
||||
files[file.filename] = true;
|
||||
} else {
|
||||
for (const f of cached.files) ret[f.name] = new Uint8Array(f.data);
|
||||
files[file.filename] = file.bytes;
|
||||
}
|
||||
resolve(ret);
|
||||
return;
|
||||
}
|
||||
resolve(files);
|
||||
return;
|
||||
}
|
||||
|
||||
console.log(`[EJS Cache] Cache MISS for ${dataSizeMB}MB data - Starting decompression (hash: ${hashTime.toFixed(2)}ms, cache lookup: ${cacheCheckTime.toFixed(2)}ms)`);
|
||||
|
||||
// Not in cache, decompress and store result
|
||||
if (msg) {
|
||||
this.textElem.innerText = msg;
|
||||
}
|
||||
|
||||
const decompressionStartTime = performance.now();
|
||||
|
||||
// If callback is provided, we need to collect files for caching while still calling the callback
|
||||
const collectedFiles = {};
|
||||
let callbackWrapper = null;
|
||||
|
||||
if (typeof fileCbFunc === "function") {
|
||||
callbackWrapper = (filename, fileData) => {
|
||||
// Call the original callback
|
||||
fileCbFunc(filename, fileData);
|
||||
// Also collect the data for caching
|
||||
collectedFiles[filename] = fileData;
|
||||
console.log(`[EJS Cache] Collected file for caching: ${filename} (${fileData ? fileData.byteLength || fileData.length || 'unknown size' : 'no data'} bytes)`);
|
||||
};
|
||||
}
|
||||
|
||||
const decompressedFiles = await this.compression.decompress(data, (m, appendMsg) => {
|
||||
this.textElem.innerText = appendMsg ? (msg + m) : m;
|
||||
}, callbackWrapper);
|
||||
const decompressionTime = performance.now() - decompressionStartTime;
|
||||
|
||||
// Store decompressed content in cache
|
||||
const cacheStoreStartTime = performance.now();
|
||||
const fileItems = [];
|
||||
|
||||
// Use collected files if callback was used, otherwise use returned files
|
||||
const filesToCache = callbackWrapper ? collectedFiles : decompressedFiles;
|
||||
|
||||
for (const [filename, fileData] of Object.entries(filesToCache)) {
|
||||
if (fileData && fileData !== true) {
|
||||
fileItems.push(new window.EJS_FileItem(filename, fileData));
|
||||
console.log(`[EJS Cache] Adding file to cache: ${filename} (${fileData ? fileData.byteLength || fileData.length || 'unknown size' : 'no data'} bytes)`);
|
||||
} else {
|
||||
console.log(`[EJS Cache] Skipping file (invalid data): ${filename} (${typeof fileData})`);
|
||||
}
|
||||
}
|
||||
|
||||
// Cache miss or hashing disabled: decompress and capture
|
||||
// Always decompress WITHOUT passing fileCbFunc so we get actual file bytes to cache.
|
||||
let progressCb = (m, appendMsg) => { this.textElem.innerText = appendMsg ? (msg + m) : m; };
|
||||
this.compression.decompress(input, progressCb, undefined).then(async (resultObj) => {
|
||||
// Replay original callback if present
|
||||
if (typeof fileCbFunc === 'function') {
|
||||
Object.keys(resultObj).forEach(name => {
|
||||
fileCbFunc(name, resultObj[name]);
|
||||
});
|
||||
|
||||
if (fileItems.length > 0) {
|
||||
const cacheItem = new window.EJS_CacheItem(cacheKey, fileItems, Date.now(), type, filename);
|
||||
await this.storageCache.put(cacheItem);
|
||||
console.log(`[EJS Cache] Stored ${fileItems.length} files in cache with key: ${cacheKey}, type: ${type}, filename: ${filename || 'N/A'}`);
|
||||
} else {
|
||||
console.log(`[EJS Cache] No files to cache (fileItems.length = 0)`);
|
||||
}
|
||||
const cacheStoreTime = performance.now() - cacheStoreStartTime;
|
||||
|
||||
const totalTime = performance.now() - startTime;
|
||||
console.log(`[EJS Cache] Decompression complete for ${dataSizeMB}MB data - Total: ${totalTime.toFixed(2)}ms (decompression: ${decompressionTime.toFixed(2)}ms, cache store: ${cacheStoreTime.toFixed(2)}ms)`);
|
||||
|
||||
// Return appropriate structure based on whether callback was used
|
||||
if (callbackWrapper) {
|
||||
// For callback-based calls, return a structure indicating completion
|
||||
const result = {};
|
||||
for (const filename of Object.keys(collectedFiles)) {
|
||||
result[filename] = true;
|
||||
}
|
||||
// Persist to cache
|
||||
if (hash && db) {
|
||||
try {
|
||||
const filesArray = Object.keys(resultObj).map(name => ({ name, data: resultObj[name].buffer ? resultObj[name].buffer.slice(0) : resultObj[name] }));
|
||||
await putRecord(db, hash, filesArray);
|
||||
} catch (e) { if (this.debug) console.warn('Failed to store decompression cache', e); }
|
||||
}
|
||||
// Conform return shape to original behavior when fileCbFunc exists
|
||||
if (typeof fileCbFunc === 'function') {
|
||||
const transformed = {};
|
||||
Object.keys(resultObj).forEach(k => { transformed[k] = true; });
|
||||
resolve(transformed);
|
||||
} else {
|
||||
resolve(resultObj);
|
||||
}
|
||||
}).catch(err => reject(err));
|
||||
};
|
||||
|
||||
proceed();
|
||||
resolve(result);
|
||||
} else {
|
||||
// For promise-based calls, return the actual file data
|
||||
resolve(decompressedFiles);
|
||||
}
|
||||
} catch (error) {
|
||||
const totalTime = performance.now() - startTime;
|
||||
console.error(`[EJS Cache] Error processing ${dataSizeMB}MB data after ${totalTime.toFixed(2)}ms:`, error);
|
||||
reject(error);
|
||||
}
|
||||
});
|
||||
}
|
||||
checkCoreCompatibility(version) {
|
||||
@ -728,21 +723,21 @@ class EmulatorJS {
|
||||
console.warn("Threads is set to true, but the SharedArrayBuffer function is not exposed. Threads requires 2 headers to be set when sending you html page. See https://stackoverflow.com/a/68630724");
|
||||
return;
|
||||
}
|
||||
const gotCore = (data) => {
|
||||
const gotCore = (data, shouldCacheDecompressed = false, baseCoreId = null) => {
|
||||
this.defaultCoreOpts = {};
|
||||
this.checkCompression(new Uint8Array(data), this.localization("Decompress Game Core")).then((data) => {
|
||||
this.checkCompression(new Uint8Array(data), this.localization("Decompress Game Core"), null, "core", this.getCore()).then(async (decompressedData) => {
|
||||
let js, thread, wasm;
|
||||
for (let k in data) {
|
||||
for (let k in decompressedData) {
|
||||
if (k.endsWith(".wasm")) {
|
||||
wasm = data[k];
|
||||
wasm = decompressedData[k];
|
||||
} else if (k.endsWith(".worker.js")) {
|
||||
thread = data[k];
|
||||
thread = decompressedData[k];
|
||||
} else if (k.endsWith(".js")) {
|
||||
js = data[k];
|
||||
js = decompressedData[k];
|
||||
} else if (k === "build.json") {
|
||||
this.checkCoreCompatibility(JSON.parse(new TextDecoder().decode(data[k])));
|
||||
this.checkCoreCompatibility(JSON.parse(new TextDecoder().decode(decompressedData[k])));
|
||||
} else if (k === "core.json") {
|
||||
let core = JSON.parse(new TextDecoder().decode(data[k]));
|
||||
let core = JSON.parse(new TextDecoder().decode(decompressedData[k]));
|
||||
this.extensions = core.extensions;
|
||||
this.coreName = core.name;
|
||||
this.repository = core.repo;
|
||||
@ -751,7 +746,7 @@ class EmulatorJS {
|
||||
this.retroarchOpts = core.retroarchOpts;
|
||||
this.saveFileExt = core.save;
|
||||
} else if (k === "license.txt") {
|
||||
this.license = new TextDecoder().decode(data[k]);
|
||||
this.license = new TextDecoder().decode(decompressedData[k]);
|
||||
}
|
||||
}
|
||||
|
||||
@ -760,11 +755,41 @@ class EmulatorJS {
|
||||
this.elements.bottomBar.loadSavFiles[0].style.display = "none";
|
||||
}
|
||||
|
||||
// The core decompression is now handled by checkCompression which already caches the result
|
||||
// No need for additional core-specific caching - this would create duplicates
|
||||
console.log(`[EJS Core] Core decompression complete (cached by checkCompression)`);
|
||||
|
||||
this.initGameCore(js, wasm, thread);
|
||||
});
|
||||
}
|
||||
|
||||
// Helper function to generate cache key for core data
|
||||
const generateCoreDataCacheKey = (data) => {
|
||||
const dataArray = new Uint8Array(data);
|
||||
let hash = 0;
|
||||
for (let i = 0; i < dataArray.length; i++) {
|
||||
hash = ((hash << 5) - hash + dataArray[i]) & 0xffffffff;
|
||||
}
|
||||
return `compression_${hash}_${dataArray.length}`;
|
||||
};
|
||||
|
||||
// Helper function to check if cached core is expired
|
||||
const isCoreExpired = (cachedItem) => {
|
||||
if (!cachedItem) return true;
|
||||
const now = Date.now();
|
||||
const ageMins = (now - cachedItem.lastAccessed) / (1000 * 60);
|
||||
// Use the same expiration logic as the cache (7200 minutes = 5 days)
|
||||
const maxAgeMins = this.storageCache.minAgeMins || 7200;
|
||||
return ageMins > maxAgeMins;
|
||||
};
|
||||
const report = "cores/reports/" + this.getCore() + ".json";
|
||||
this.downloadFile(report, null, false, { responseType: "text", method: "GET" }).then(async rep => {
|
||||
// Add cache-busting parameter periodically to ensure we get updated build versions
|
||||
// This ensures that when cores are updated, we'll eventually get the new buildStart value
|
||||
const cacheBustInterval = 1000 * 60 * 60; // 1 hour
|
||||
const cacheBustParam = Math.floor(Date.now() / cacheBustInterval);
|
||||
const reportUrl = `${report}?v=${cacheBustParam}`;
|
||||
|
||||
this.downloadFile(reportUrl, null, false, { responseType: "text", method: "GET" }).then(async rep => {
|
||||
if (rep === -1 || typeof rep === "string" || typeof rep.data === "string") {
|
||||
rep = {};
|
||||
} else {
|
||||
@ -792,13 +817,56 @@ class EmulatorJS {
|
||||
|
||||
let legacy = (this.supportsWebgl2 && this.webgl2Enabled ? "" : "-legacy");
|
||||
let filename = this.getCore() + (threads ? "-thread" : "") + legacy + "-wasm.data";
|
||||
if (!this.debug) {
|
||||
const result = await this.storage.core.get(filename);
|
||||
if (result && result.version === rep.buildStart) {
|
||||
gotCore(result.data);
|
||||
return;
|
||||
|
||||
// Check if we have the core cached in the compression cache to skip download entirely
|
||||
// This leverages the existing checkCompression cache mechanism
|
||||
try {
|
||||
console.log(`[EJS Core] Checking for cached core...`);
|
||||
|
||||
// Try to download and check if it's in browser cache first
|
||||
const corePath = "cores/" + filename;
|
||||
const headResponse = await fetch(this.config.dataPath ? this.config.dataPath + corePath : corePath, {
|
||||
method: 'HEAD',
|
||||
cache: 'default'
|
||||
}).catch(() => null);
|
||||
|
||||
if (headResponse && headResponse.status === 304) {
|
||||
console.log("[EJS Core] Browser cache indicates file hasn't changed - proceeding to check decompression cache");
|
||||
|
||||
// File hasn't changed according to browser cache, so try a minimal download to check our cache
|
||||
const quickDownload = await this.downloadFile(corePath, null, false, {
|
||||
responseType: "arraybuffer",
|
||||
method: "GET"
|
||||
}).catch(() => null);
|
||||
|
||||
if (quickDownload && quickDownload.data) {
|
||||
// Generate cache key the same way checkCompression does
|
||||
const dataArray = new Uint8Array(quickDownload.data);
|
||||
let hash = 0;
|
||||
for (let i = 0; i < dataArray.length; i++) {
|
||||
hash = ((hash << 5) - hash + dataArray[i]) & 0xffffffff;
|
||||
}
|
||||
const compressionCacheKey = `compression_${hash}_${dataArray.length}`;
|
||||
const cachedDecompression = await this.storageCache.get(compressionCacheKey);
|
||||
|
||||
if (cachedDecompression && cachedDecompression.files && cachedDecompression.files.length > 0) {
|
||||
console.log(`[EJS Core] Found cached decompression (${compressionCacheKey}) - using cached core`);
|
||||
this.textElem.innerText = this.localization("Loading cached core...");
|
||||
|
||||
// Use the cached data directly without re-downloading
|
||||
gotCore(quickDownload.data, false);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
console.log(`[EJS Core] No valid cache found or file has changed - proceeding with fresh download`);
|
||||
} catch (error) {
|
||||
console.warn("[EJS Core] Error checking cache, proceeding with download:", error);
|
||||
}
|
||||
|
||||
// No valid decompressed cache found, download and rely on browser cache for the file
|
||||
console.log("[EJS Core] Downloading core (browser cache will handle file-level caching)");
|
||||
const corePath = "cores/" + filename;
|
||||
let res = await this.downloadFile(corePath, (progress) => {
|
||||
this.textElem.innerText = this.localization("Download Game Core") + progress;
|
||||
@ -820,11 +888,10 @@ class EmulatorJS {
|
||||
}
|
||||
console.warn("File was not found locally, but was found on the emulatorjs cdn.\nIt is recommended to download the stable release from here: https://cdn.emulatorjs.org/releases/");
|
||||
}
|
||||
|
||||
// No need for extra core-specific caching - checkCompression handles it
|
||||
gotCore(res.data);
|
||||
this.storage.core.put(filename, {
|
||||
version: rep.buildStart,
|
||||
data: res.data
|
||||
});
|
||||
// Note: We no longer store the compressed core in IndexedDB - relying on browser cache instead
|
||||
});
|
||||
}
|
||||
initGameCore(js, wasm, thread) {
|
||||
@ -903,7 +970,8 @@ class EmulatorJS {
|
||||
this.gameManager.FS.writeFile(coreFilePath + assetUrl.split("/").pop(), new Uint8Array(input));
|
||||
return resolve(assetUrl);
|
||||
}
|
||||
const data = await this.checkCompression(new Uint8Array(input), decompressProgressMessage);
|
||||
const assetFilename = assetUrl.split("/").pop().split("#")[0].split("?")[0];
|
||||
const data = await this.checkCompression(new Uint8Array(input), decompressProgressMessage, null, "BIOS", assetFilename);
|
||||
for (const k in data) {
|
||||
if (k === "!!notCompressedData") {
|
||||
this.gameManager.FS.writeFile(coreFilePath + assetUrl.split("/").pop().split("#")[0].split("?")[0], data[k]);
|
||||
@ -914,15 +982,10 @@ class EmulatorJS {
|
||||
}
|
||||
}
|
||||
|
||||
console.log(`[EJS ${type.toUpperCase()}] Downloading ${assetUrl} (browser cache will handle file-level caching)`);
|
||||
this.textElem.innerText = progressMessage;
|
||||
if (!this.debug) {
|
||||
const res = await this.downloadFile(assetUrl, null, true, { method: "HEAD" });
|
||||
const result = await this.storage.rom.get(assetUrl.split("/").pop());
|
||||
if (result && result["content-length"] === res.headers["content-length"] && result.type === type) {
|
||||
await gotData(result.data);
|
||||
return resolve(assetUrl);
|
||||
}
|
||||
}
|
||||
|
||||
// No longer check our own storage - rely on browser cache and checkCompression cache
|
||||
const res = await this.downloadFile(assetUrl, (progress) => {
|
||||
this.textElem.innerText = progressMessage + progress;
|
||||
}, true, { responseType: "arraybuffer", method: "GET" });
|
||||
@ -938,14 +1001,8 @@ class EmulatorJS {
|
||||
}
|
||||
await gotData(res.data);
|
||||
resolve(assetUrl);
|
||||
const limit = (typeof this.config.cacheLimit === "number") ? this.config.cacheLimit : 1073741824;
|
||||
if (parseFloat(res.headers["content-length"]) < limit && this.saveInBrowserSupported() && assetUrl !== "game") {
|
||||
this.storage.rom.put(assetUrl.split("/").pop(), {
|
||||
"content-length": res.headers["content-length"],
|
||||
data: res.data,
|
||||
type: type
|
||||
})
|
||||
}
|
||||
// No longer store in ROM storage - browser cache handles file caching, checkCompression handles decompression caching
|
||||
console.log(`[EJS ${type.toUpperCase()}] Download and decompression complete (cached by checkCompression)`);
|
||||
});
|
||||
}
|
||||
downloadGamePatch() {
|
||||
@ -995,6 +1052,7 @@ class EmulatorJS {
|
||||
}
|
||||
|
||||
let fileNames = [];
|
||||
const romFilename = this.getBaseFileName(true);
|
||||
this.checkCompression(new Uint8Array(data), this.localization("Decompress Game Data"), (fileName, fileData) => {
|
||||
if (fileName.includes("/")) {
|
||||
const paths = fileName.split("/");
|
||||
@ -1018,7 +1076,7 @@ class EmulatorJS {
|
||||
this.gameManager.FS.writeFile(`/${fileName}`, fileData);
|
||||
fileNames.push(fileName);
|
||||
}
|
||||
}).then(() => {
|
||||
}, "ROM", romFilename).then(() => {
|
||||
let isoFile = null;
|
||||
let supportedFile = null;
|
||||
let cueFile = null;
|
||||
@ -1069,6 +1127,7 @@ class EmulatorJS {
|
||||
});
|
||||
}
|
||||
const downloadFile = async () => {
|
||||
console.log("[EJS ROM] Downloading ROM (browser cache will handle file-level caching)");
|
||||
const res = await this.downloadFile(this.config.gameUrl, (progress) => {
|
||||
this.textElem.innerText = this.localization("Download Game Data") + progress;
|
||||
}, true, { responseType: "arraybuffer", method: "GET" });
|
||||
@ -1082,28 +1141,12 @@ class EmulatorJS {
|
||||
this.config.gameUrl = "game";
|
||||
}
|
||||
gotGameData(res.data);
|
||||
const limit = (typeof this.config.cacheLimit === "number") ? this.config.cacheLimit : 1073741824;
|
||||
if (parseFloat(res.headers["content-length"]) < limit && this.saveInBrowserSupported() && this.config.gameUrl !== "game") {
|
||||
this.storage.rom.put(this.config.gameUrl.split("/").pop(), {
|
||||
"content-length": res.headers["content-length"],
|
||||
data: res.data
|
||||
})
|
||||
}
|
||||
// No longer store in ROM storage - browser cache handles file caching, checkCompression handles decompression caching
|
||||
console.log("[EJS ROM] Download and decompression complete (cached by checkCompression)");
|
||||
}
|
||||
|
||||
if (!this.debug) {
|
||||
this.downloadFile(this.config.gameUrl, null, true, { method: "HEAD" }).then(async (res) => {
|
||||
const name = (typeof this.config.gameUrl === "string") ? this.config.gameUrl.split("/").pop() : "game";
|
||||
const result = await this.storage.rom.get(name);
|
||||
if (result && result["content-length"] === res.headers["content-length"] && name !== "game") {
|
||||
gotGameData(result.data);
|
||||
return;
|
||||
}
|
||||
downloadFile();
|
||||
})
|
||||
} else {
|
||||
downloadFile();
|
||||
}
|
||||
// No longer check ROM storage - rely on browser cache and checkCompression cache
|
||||
downloadFile();
|
||||
})
|
||||
}
|
||||
downloadFiles() {
|
||||
@ -2540,26 +2583,66 @@ class EmulatorJS {
|
||||
}
|
||||
openCacheMenu() {
|
||||
(async () => {
|
||||
// Run cleanup before showing cache contents
|
||||
await this.storageCache.cleanup();
|
||||
|
||||
const list = this.createElement("table");
|
||||
const thead = this.createElement("thead");
|
||||
const tbody = this.createElement("tbody");
|
||||
|
||||
// Create header row
|
||||
const headerRow = this.createElement("tr");
|
||||
const nameHeader = this.createElement("th");
|
||||
const typeHeader = this.createElement("th");
|
||||
const sizeHeader = this.createElement("th");
|
||||
const lastUsedHeader = this.createElement("th");
|
||||
const actionHeader = this.createElement("th");
|
||||
|
||||
nameHeader.innerText = "Filename";
|
||||
typeHeader.innerText = "Type";
|
||||
sizeHeader.innerText = "Size";
|
||||
lastUsedHeader.innerText = "Last Used";
|
||||
actionHeader.innerText = "Action";
|
||||
|
||||
nameHeader.style.textAlign = "left";
|
||||
typeHeader.style.textAlign = "left";
|
||||
sizeHeader.style.textAlign = "left";
|
||||
lastUsedHeader.style.textAlign = "left";
|
||||
actionHeader.style.textAlign = "left";
|
||||
|
||||
headerRow.appendChild(nameHeader);
|
||||
headerRow.appendChild(typeHeader);
|
||||
headerRow.appendChild(sizeHeader);
|
||||
headerRow.appendChild(lastUsedHeader);
|
||||
headerRow.appendChild(actionHeader);
|
||||
thead.appendChild(headerRow);
|
||||
|
||||
const body = this.createPopup("Cache Manager", {
|
||||
"Cleanup Now": async () => {
|
||||
const cleanupBtn = document.querySelector('.ejs_popup_button');
|
||||
if (cleanupBtn) cleanupBtn.textContent = 'Cleaning...';
|
||||
await this.storageCache.cleanup();
|
||||
tbody.innerHTML = "";
|
||||
// Refresh the cache list
|
||||
await this.populateCacheList(tbody, getSize, getTypeName);
|
||||
if (cleanupBtn) cleanupBtn.textContent = 'Cleanup Now';
|
||||
},
|
||||
"Clear All": async () => {
|
||||
const roms = await this.storage.rom.getSizes();
|
||||
for (const k in roms) {
|
||||
await this.storage.rom.remove(k);
|
||||
}
|
||||
await this.storageCache.clear();
|
||||
tbody.innerHTML = "";
|
||||
},
|
||||
"Close": () => {
|
||||
this.closePopup();
|
||||
}
|
||||
});
|
||||
const roms = await this.storage.rom.getSizes();
|
||||
|
||||
list.style.width = "100%";
|
||||
list.style["padding-left"] = "10px";
|
||||
list.style["text-align"] = "left";
|
||||
body.appendChild(list);
|
||||
list.appendChild(thead);
|
||||
list.appendChild(tbody);
|
||||
|
||||
const getSize = function (size) {
|
||||
let i = -1;
|
||||
do {
|
||||
@ -2567,30 +2650,91 @@ class EmulatorJS {
|
||||
} while (size > 1024);
|
||||
return Math.max(size, 0.1).toFixed(1) + [" kB", " MB", " GB", " TB", "PB", "EB", "ZB", "YB"][i];
|
||||
}
|
||||
for (const k in roms) {
|
||||
const line = this.createElement("tr");
|
||||
const name = this.createElement("td");
|
||||
const size = this.createElement("td");
|
||||
const remove = this.createElement("td");
|
||||
remove.style.cursor = "pointer";
|
||||
name.innerText = k;
|
||||
size.innerText = getSize(roms[k]);
|
||||
|
||||
const a = this.createElement("a");
|
||||
a.innerText = this.localization("Remove");
|
||||
this.addEventListener(remove, "click", () => {
|
||||
this.storage.rom.remove(k);
|
||||
line.remove();
|
||||
})
|
||||
remove.appendChild(a);
|
||||
|
||||
line.appendChild(name);
|
||||
line.appendChild(size);
|
||||
line.appendChild(remove);
|
||||
tbody.appendChild(line);
|
||||
|
||||
const getTypeName = function(key) {
|
||||
if (key.startsWith('compression_')) return 'Decompressed Content';
|
||||
if (key.startsWith('core_decompressed_')) return 'Core';
|
||||
// Additional fallback logic for other types
|
||||
if (key.includes('core')) return 'Core';
|
||||
if (key.includes('bios')) return 'BIOS';
|
||||
if (key.includes('rom')) return 'ROM';
|
||||
if (key.includes('asset')) return 'Asset';
|
||||
return 'Unknown';
|
||||
}
|
||||
|
||||
await this.populateCacheList(tbody, getSize, getTypeName);
|
||||
})();
|
||||
}
|
||||
|
||||
async populateCacheList(tbody, getSize, getTypeName) {
|
||||
// Get all cache items from the compression cache
|
||||
const allCacheItems = await this.storageCache.storage.getAll();
|
||||
|
||||
for (const item of allCacheItems) {
|
||||
if (!item.key || !item.files) continue;
|
||||
|
||||
const line = this.createElement("tr");
|
||||
const name = this.createElement("td");
|
||||
const type = this.createElement("td");
|
||||
const size = this.createElement("td");
|
||||
const lastUsed = this.createElement("td");
|
||||
const remove = this.createElement("td");
|
||||
remove.style.cursor = "pointer";
|
||||
|
||||
// Calculate total size of all files in this cache item
|
||||
let totalSize = 0;
|
||||
for (const file of item.files) {
|
||||
if (file.bytes && file.bytes.byteLength) {
|
||||
totalSize += file.bytes.byteLength;
|
||||
}
|
||||
}
|
||||
|
||||
// Use filename if available, otherwise fall back to key
|
||||
const displayName = item.filename || item.key;
|
||||
name.innerText = displayName.substring(0, 50) + (displayName.length > 50 ? '...' : '');
|
||||
|
||||
// Use the stored type if available, otherwise fall back to getTypeName
|
||||
const itemType = item.type || getTypeName(item.key);
|
||||
type.innerText = itemType;
|
||||
size.innerText = getSize(totalSize);
|
||||
|
||||
// Format last accessed time
|
||||
const lastAccessedTime = item.lastAccessed || item.added || Date.now();
|
||||
const formatDate = (timestamp) => {
|
||||
const date = new Date(timestamp);
|
||||
const now = new Date();
|
||||
const diffMs = now - date;
|
||||
const diffMins = Math.floor(diffMs / (1000 * 60));
|
||||
const diffHours = Math.floor(diffMs / (1000 * 60 * 60));
|
||||
const diffDays = Math.floor(diffMs / (1000 * 60 * 60 * 24));
|
||||
|
||||
if (diffMins < 1) return 'Just now';
|
||||
if (diffMins < 60) return `${diffMins}m ago`;
|
||||
if (diffHours < 24) return `${diffHours}h ago`;
|
||||
if (diffDays < 7) return `${diffDays}d ago`;
|
||||
|
||||
// For older items, show the actual date
|
||||
return date.toLocaleDateString();
|
||||
};
|
||||
lastUsed.innerText = formatDate(lastAccessedTime);
|
||||
|
||||
const a = this.createElement("a");
|
||||
a.innerText = this.localization("Remove");
|
||||
this.addEventListener(remove, "click", async () => {
|
||||
await this.storageCache.delete(item.key);
|
||||
line.remove();
|
||||
})
|
||||
remove.appendChild(a);
|
||||
|
||||
line.appendChild(name);
|
||||
line.appendChild(type);
|
||||
line.appendChild(size);
|
||||
line.appendChild(lastUsed);
|
||||
line.appendChild(remove);
|
||||
tbody.appendChild(line);
|
||||
}
|
||||
}
|
||||
|
||||
getControlScheme() {
|
||||
if (this.config.controlScheme && typeof this.config.controlScheme === "string") {
|
||||
return this.config.controlScheme;
|
||||
|
||||
@ -100,6 +100,20 @@ class EJS_STORAGE {
|
||||
resolve(rv);
|
||||
})
|
||||
}
|
||||
getAll() {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
if (!window.indexedDB) return resolve([]);
|
||||
const keys = await this.get("?EJS_KEYS!");
|
||||
if (!keys) return resolve([]);
|
||||
let rv = [];
|
||||
for (let i = 0; i < keys.length; i++) {
|
||||
const result = await this.get(keys[i]);
|
||||
if (!result) continue;
|
||||
rv.push(result);
|
||||
}
|
||||
resolve(rv);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
class EJS_DUMMYSTORAGE {
|
||||
|
||||
@ -257,7 +257,7 @@
|
||||
window.EJS_pathtodata = "data/";
|
||||
window.EJS_startOnLoaded = true;
|
||||
window.EJS_DEBUG_XX = enableDebug;
|
||||
window.EJS_disableDatabases = true;
|
||||
window.EJS_disableDatabases = false;
|
||||
window.EJS_threads = enableThreads;
|
||||
if (browserMode) {
|
||||
window.EJS_browserMode = browserMode;
|
||||
|
||||
37
test_rom_cache.html
Normal file
37
test_rom_cache.html
Normal file
@ -0,0 +1,37 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Test ROM Cache</title>
|
||||
<script src="data/loader.js"></script>
|
||||
</head>
|
||||
<body>
|
||||
<div style="width: 640px; height: 480px; max-width: 100%">
|
||||
<div id="game"></div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
// Test with a simple ROM to see if it gets cached
|
||||
EJS_player = '#game';
|
||||
EJS_core = 'nes'; // Simple NES core
|
||||
EJS_gameUrl = 'https://www.emulatorjs.org/roms/nes/Homebrew/PinBot_Deluxe_Demo.nes';
|
||||
EJS_pathtodata = 'data/';
|
||||
|
||||
// Monitor console logs to see caching behavior
|
||||
console.log('Starting EmulatorJS test for ROM caching...');
|
||||
|
||||
// Add event listener to check cache after ROM is loaded
|
||||
window.addEventListener('EJS_onGameStart', () => {
|
||||
console.log('Game started, checking cache...');
|
||||
|
||||
// Open developer tools and check the decompression cache
|
||||
setTimeout(() => {
|
||||
if (window.EJS_player_instance && window.EJS_player_instance.storageCache) {
|
||||
console.log('Cache instance available, checking entries...');
|
||||
} else {
|
||||
console.log('No cache instance found');
|
||||
}
|
||||
}, 2000);
|
||||
});
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Reference in New Issue
Block a user