136 lines
4.5 KiB
C++
136 lines
4.5 KiB
C++
/**
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* @file lltexturefetch.h
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* @brief Object for managing texture fetches.
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*
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* $LicenseInfo:firstyear=2000&license=viewergpl$
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*
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* Copyright (c) 2000-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLTEXTUREFETCH_H
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#define LL_LLTEXTUREFETCH_H
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#include "lldir.h"
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#include "llimage.h"
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#include "lluuid.h"
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#include "llworkerthread.h"
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#include "llcurl.h"
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#include "lltextureinfo.h"
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class LLViewerImage;
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class LLTextureFetchWorker;
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class HTTPGetResponder;
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class LLTextureCache;
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class LLImageDecodeThread;
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class LLHost;
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// Interface class
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class LLTextureFetch : public LLWorkerThread
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{
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friend class LLTextureFetchWorker;
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friend class HTTPGetResponder;
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public:
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LLTextureFetch(LLTextureCache* cache, LLImageDecodeThread* imagedecodethread, bool threaded);
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~LLTextureFetch();
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/*virtual*/ S32 update(U32 max_time_ms);
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bool createRequest(const std::string& url, const LLUUID& id, const LLHost& host, F32 priority,
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S32 w, S32 h, S32 c, S32 discard, bool needs_aux);
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void deleteRequest(const LLUUID& id, bool cancel);
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bool getRequestFinished(const LLUUID& id, S32& discard_level,
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LLPointer<LLImageRaw>& raw, LLPointer<LLImageRaw>& aux);
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bool updateRequestPriority(const LLUUID& id, F32 priority);
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bool receiveImageHeader(const LLHost& host, const LLUUID& id, U8 codec, U16 packets, U32 totalbytes, U16 data_size, U8* data);
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bool receiveImagePacket(const LLHost& host, const LLUUID& id, U16 packet_num, U16 data_size, U8* data);
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void setTextureBandwidth(F32 bandwidth) { mTextureBandwidth = bandwidth; }
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F32 getTextureBandwidth() { return mTextureBandwidth; }
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// Debug
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S32 getFetchState(const LLUUID& id, F32& decode_progress_p, F32& requested_priority_p,
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U32& fetch_priority_p, F32& fetch_dtime_p, F32& request_dtime_p);
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void dump();
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S32 getNumRequests() const { LLMutexLock lock(&mQueueMutex); return mRequestMap.size(); }
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S32 getNumHTTPRequests() const { LLMutexLock lock(&mNetworkQueueMutex); return mHTTPTextureQueue.size(); }
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// Public for access by callbacks
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void lockQueue() { mQueueMutex.lock(); }
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void unlockQueue() { mQueueMutex.unlock(); }
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LLTextureFetchWorker* getWorker(const LLUUID& id);
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LLTextureInfo* getTextureInfo() { return &mTextureInfo; }
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protected:
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void addToNetworkQueue(LLTextureFetchWorker* worker);
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void removeFromNetworkQueue(LLTextureFetchWorker* worker, bool cancel);
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void addToHTTPQueue(const LLUUID& id);
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void removeFromHTTPQueue(const LLUUID& id);
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void removeRequest(LLTextureFetchWorker* worker, bool cancel);
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// Called from worker thread (during doWork)
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void processCurlRequests();
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private:
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void sendRequestListToSimulators();
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/*virtual*/ void startThread(void);
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/*virtual*/ void endThread(void);
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/*virtual*/ void threadedUpdate(void);
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public:
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LLUUID mDebugID;
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S32 mDebugCount;
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BOOL mDebugPause;
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S32 mPacketCount;
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S32 mBadPacketCount;
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private:
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mutable LLMutex mQueueMutex;
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mutable LLMutex mNetworkQueueMutex;
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LLTextureCache* mTextureCache;
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LLImageDecodeThread* mImageDecodeThread;
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LLCurlRequest* mCurlGetRequest;
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// Map of all requests by UUID
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typedef std::map<LLUUID,LLTextureFetchWorker*> map_t;
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map_t mRequestMap;
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// Set of requests that require network data
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typedef std::set<LLUUID> queue_t;
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queue_t mNetworkQueue;
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queue_t mHTTPTextureQueue;
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typedef std::map<LLHost,std::set<LLUUID> > cancel_queue_t;
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cancel_queue_t mCancelQueue;
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F32 mTextureBandwidth;
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F32 mMaxBandwidth;
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LLTextureInfo mTextureInfo;
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};
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#endif // LL_LLTEXTUREFETCH_H
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