diff options
Diffstat (limited to 'indra/newview/lltexturecache.h')
| -rw-r--r-- | indra/newview/lltexturecache.h | 124 |
1 files changed, 79 insertions, 45 deletions
diff --git a/indra/newview/lltexturecache.h b/indra/newview/lltexturecache.h index 68b1458e9a..64e3a2658c 100644 --- a/indra/newview/lltexturecache.h +++ b/indra/newview/lltexturecache.h @@ -2,31 +2,25 @@ * @file lltexturecache.h * @brief Object for managing texture cachees. * - * $LicenseInfo:firstyear=2000&license=viewergpl$ - * - * Copyright (c) 2000-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -40,6 +34,7 @@ #include "llworkerthread.h" +class LLImageFormatted; class LLTextureCacheWorker; class LLTextureCache : public LLWorkerThread @@ -48,6 +43,33 @@ class LLTextureCache : public LLWorkerThread friend class LLTextureCacheRemoteWorker; friend class LLTextureCacheLocalFileWorker; +private: + // Entries + struct EntriesInfo + { + EntriesInfo() : mVersion(0.f), mEntries(0) {} + F32 mVersion; + U32 mEntries; + }; + struct Entry + { + Entry() : + mBodySize(0), + mImageSize(0), + mTime(0) + { + } + Entry(const LLUUID& id, S32 imagesize, S32 bodysize, U32 time) : + mID(id), mImageSize(imagesize), mBodySize(bodysize), mTime(time) {} + void init(const LLUUID& id, U32 time) { mID = id, mImageSize = 0; mBodySize = 0; mTime = time; } + Entry& operator=(const Entry& entry) {mID = entry.mID, mImageSize = entry.mImageSize; mBodySize = entry.mBodySize; mTime = entry.mTime; return *this;} + LLUUID mID; // 16 bytes + S32 mImageSize; // total size of image if known + S32 mBodySize; // size of body file in body cache + U32 mTime; // seconds since 1/1/1970 + }; + + public: class Responder : public LLResponder @@ -82,7 +104,8 @@ public: /*virtual*/ S32 update(U32 max_time_ms); void purgeCache(ELLPath location); - S64 initCache(ELLPath location, S64 maxsize, BOOL read_only); + void setReadOnly(BOOL read_only) ; + S64 initCache(ELLPath location, S64 maxsize, BOOL texture_cache_mismatch); handle_t readFromCache(const std::string& local_filename, const LLUUID& id, U32 priority, S32 offset, S32 size, ReadResponder* responder); @@ -95,7 +118,7 @@ public: bool writeComplete(handle_t handle, bool abort = false); void prioritizeWrite(handle_t handle); - void removeFromCache(const LLUUID& id); + bool removeFromCache(const LLUUID& id); // For LLTextureCacheWorker::Responder LLTextureCacheWorker* getReader(handle_t handle); @@ -106,10 +129,15 @@ public: // debug S32 getNumReads() { return mReaders.size(); } S32 getNumWrites() { return mWriters.size(); } + S64 getUsage() { return mTexturesSizeTotal; } + S64 getMaxUsage() { return sCacheMaxTexturesSize; } + U32 getEntries() { return mHeaderEntriesInfo.mEntries; } + U32 getMaxEntries() { return sCacheMaxEntries; }; + BOOL isInCache(const LLUUID& id) ; + BOOL isInLocal(const LLUUID& id) ; protected: // Accessed by LLTextureCacheWorker - bool appendToTextureEntryList(const LLUUID& id, S32 size); std::string getLocalFileName(const LLUUID& id); std::string getTextureFileName(const LLUUID& id); void addCompleted(Responder* responder, bool success); @@ -120,10 +148,26 @@ protected: private: void setDirNames(ELLPath location); void readHeaderCache(); + void clearCorruptedCache(); void purgeAllTextures(bool purge_directories); void purgeTextures(bool validate); - S32 getHeaderCacheEntry(const LLUUID& id, bool touch, S32* imagesize = NULL); - bool removeHeaderCacheEntry(const LLUUID& id); + LLAPRFile* openHeaderEntriesFile(bool readonly, S32 offset); + void closeHeaderEntriesFile(); + void readEntriesHeader(); + void writeEntriesHeader(); + S32 openAndReadEntry(const LLUUID& id, Entry& entry, bool create); + bool updateEntry(S32& idx, Entry& entry, S32 new_image_size, S32 new_body_size); + void updateEntryTimeStamp(S32 idx, Entry& entry) ; + U32 openAndReadEntries(std::vector<Entry>& entries); + void writeEntriesAndClose(const std::vector<Entry>& entries); + void readEntryFromHeaderImmediately(S32& idx, Entry& entry) ; + void writeEntryToHeaderImmediately(S32& idx, Entry& entry, bool write_header = false) ; + void removeEntry(S32 idx, Entry& entry, std::string& filename); + void removeCachedTexture(const LLUUID& id) ; + S32 getHeaderCacheEntry(const LLUUID& id, Entry& entry); + S32 setHeaderCacheEntry(const LLUUID& id, Entry& entry, S32 imagesize, S32 datasize); + void writeUpdatedEntries() ; + void updatedHeaderEntriesFile() ; void lockHeaders() { mHeaderMutex.lock(); } void unlockHeaders() { mHeaderMutex.unlock(); } @@ -132,6 +176,7 @@ private: LLMutex mWorkersMutex; LLMutex mHeaderMutex; LLMutex mListMutex; + LLAPRFile* mHeaderAPRFile; typedef std::map<handle_t, LLTextureCacheWorker*> handle_map_t; handle_map_t mReaders; @@ -145,42 +190,31 @@ private: BOOL mReadOnly; - // Entries - struct EntriesInfo - { - F32 mVersion; - U32 mEntries; - }; - struct Entry - { - Entry() {} - Entry(const LLUUID& id, S32 size, U32 time) : mID(id), mSize(size), mTime(time) {} - LLUUID mID; // 128 bits - S32 mSize; // total size of image if known (NOT size cached) - U32 mTime; // seconds since 1/1/1970 - }; - // HEADERS (Include first mip) std::string mHeaderEntriesFileName; std::string mHeaderDataFileName; EntriesInfo mHeaderEntriesInfo; - typedef std::map<S32,LLUUID> index_map_t; - index_map_t mLRU; // index, id; stored as a map for fast removal + std::set<S32> mFreeList; // deleted entries + std::set<LLUUID> mLRU; typedef std::map<LLUUID,S32> id_map_t; id_map_t mHeaderIDMap; // BODIES (TEXTURES minus headers) std::string mTexturesDirName; - std::string mTexturesDirEntriesFileName; typedef std::map<LLUUID,S32> size_map_t; size_map_t mTexturesSizeMap; S64 mTexturesSizeTotal; LLAtomic32<BOOL> mDoPurge; - + + typedef std::map<S32, Entry> idx_entry_map_t; + idx_entry_map_t mUpdatedEntryMap; + // Statics static F32 sHeaderCacheVersion; static U32 sCacheMaxEntries; static S64 sCacheMaxTexturesSize; }; +extern const S32 TEXTURE_CACHE_ENTRY_SIZE; + #endif // LL_LLTEXTURECACHE_H |