lltexturefetch.h
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- /**
- * @file lltexturefetch.h
- * @brief Object for managing texture fetches.
- *
- * $LicenseInfo:firstyear=2000&license=viewergpl$
- *
- * Copyright (c) 2000-2010, Linden Research, Inc.
- *
- * 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
- *
- * 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
- *
- * 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.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LLTEXTUREFETCH_H
- #define LL_LLTEXTUREFETCH_H
- #include "lldir.h"
- #include "llimage.h"
- #include "lluuid.h"
- #include "llworkerthread.h"
- #include "llcurl.h"
- #include "lltextureinfo.h"
- class LLViewerTexture;
- class LLTextureFetchWorker;
- class HTTPGetResponder;
- class LLTextureCache;
- class LLImageDecodeThread;
- class LLHost;
- // Interface class
- class LLTextureFetch : public LLWorkerThread
- {
- friend class LLTextureFetchWorker;
- friend class HTTPGetResponder;
-
- public:
- LLTextureFetch(LLTextureCache* cache, LLImageDecodeThread* imagedecodethread, bool threaded);
- ~LLTextureFetch();
- /*virtual*/ S32 update(U32 max_time_ms);
- bool createRequest(const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
- S32 w, S32 h, S32 c, S32 discard, bool needs_aux);
- void deleteRequest(const LLUUID& id, bool cancel);
- bool getRequestFinished(const LLUUID& id, S32& discard_level,
- LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux);
- bool updateRequestPriority(const LLUUID& id, F32 priority);
- bool receiveImageHeader(const LLHost& host, const LLUUID& id, U8 codec, U16 packets, U32 totalbytes, U16 data_size, U8* data);
- bool receiveImagePacket(const LLHost& host, const LLUUID& id, U16 packet_num, U16 data_size, U8* data);
- void setTextureBandwidth(F32 bandwidth) { mTextureBandwidth = bandwidth; }
- F32 getTextureBandwidth() { return mTextureBandwidth; }
-
- // Debug
- BOOL isFromLocalCache(const LLUUID& id);
- S32 getFetchState(const LLUUID& id, F32& decode_progress_p, F32& requested_priority_p,
- U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p);
- void dump();
- S32 getNumRequests() ;
- S32 getNumHTTPRequests() ;
-
- // Public for access by callbacks
- void lockQueue() { mQueueMutex.lock(); }
- void unlockQueue() { mQueueMutex.unlock(); }
- LLTextureFetchWorker* getWorker(const LLUUID& id);
- LLTextureFetchWorker* getWorkerAfterLock(const LLUUID& id);
- LLTextureInfo* getTextureInfo() { return &mTextureInfo; }
-
- protected:
- void addToNetworkQueue(LLTextureFetchWorker* worker);
- void removeFromNetworkQueue(LLTextureFetchWorker* worker, bool cancel);
- void addToHTTPQueue(const LLUUID& id);
- void removeFromHTTPQueue(const LLUUID& id);
- S32 getHTTPQueueSize() { return getNumHTTPRequests(); }
- void removeRequest(LLTextureFetchWorker* worker, bool cancel);
- // Called from worker thread (during doWork)
- void processCurlRequests();
- private:
- void sendRequestListToSimulators();
- /*virtual*/ void startThread(void);
- /*virtual*/ void endThread(void);
- /*virtual*/ void threadedUpdate(void);
- public:
- LLUUID mDebugID;
- S32 mDebugCount;
- BOOL mDebugPause;
- S32 mPacketCount;
- S32 mBadPacketCount;
-
- private:
- LLMutex mQueueMutex; //to protect mRequestMap only
- LLMutex mNetworkQueueMutex; //to protect mNetworkQueue, mHTTPTextureQueue and mCancelQueue.
- LLTextureCache* mTextureCache;
- LLImageDecodeThread* mImageDecodeThread;
- LLCurlRequest* mCurlGetRequest;
-
- // Map of all requests by UUID
- typedef std::map<LLUUID,LLTextureFetchWorker*> map_t;
- map_t mRequestMap;
- // Set of requests that require network data
- typedef std::set<LLUUID> queue_t;
- queue_t mNetworkQueue;
- queue_t mHTTPTextureQueue;
- typedef std::map<LLHost,std::set<LLUUID> > cancel_queue_t;
- cancel_queue_t mCancelQueue;
- F32 mTextureBandwidth;
- F32 mMaxBandwidth;
- LLTextureInfo mTextureInfo;
- };
- #endif // LL_LLTEXTUREFETCH_H