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Documentation                       Search   context_sound.h Go to the documentation of this file. /* Copyright, 2001 Nevrax Ltd. * * This file is part of NEVRAX NEL. * NEVRAX NEL is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * NEVRAX NEL 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 * General Public License for more details. * You should have received a copy of the GNU General Public License * along with NEVRAX NEL; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. */ #ifndef NL_CONTEXT_SOUND_H #define NL_CONTEXT_SOUND_H #include "sound.h" #include <hash_map> #include <nel/misc/fast_mem.h> namespace NLSOUND { class ISoundDriver; class IBuffer; class CSound; template <uint NbJoker, bool UseRandom, uint Shift = 5> struct CContextMatcher { CContextMatcher(uint32 *jokersValues, uint32 randomValue) : HashValue(0) { for (uint i=0; i<NbJoker; ++i) { JokersValues[i] = jokersValues[i]; uint leftShift = (5*i)&0x1f; HashValue ^= JokersValues[i] << leftShift; HashValue ^= JokersValues[i] >> (32-leftShift); } if (UseRandom) { RandomValue = randomValue; uint leftShift = (5*i)&0x1f; HashValue ^= randomValue << leftShift; HashValue ^= randomValue >> (32-leftShift); } else RandomValue = 0; } bool operator ==(const CContextMatcher &other) const { if (HashValue != other.HashValue) return false; else if (UseRandom) return RandomValue == other.RandomValue && memcmp(JokersValues, other.JokersValues, sizeof(uint32)*NbJoker) == 0; else return memcmp(JokersValues, other.JokersValues, sizeof(uint32)*NbJoker) == 0; } size_t getHashValue() const { return size_t(HashValue); } uint32 HashValue; uint32 JokersValues[NbJoker]; uint32 RandomValue; struct CHash : public std::unary_function<CContextMatcher, size_t> { size_t operator () (const CContextMatcher &patternMatcher) const { return patternMatcher.getHashValue(); } }; }; class IContextSoundContainer { public: virtual ~IContextSoundContainer() {}; virtual void init(uint *contextArgsIndex) =0; virtual void addSound(CSound *sound, const std::string &baseName) =0; virtual CSound *getSound(const CSoundContext &context, uint32 randomValue) =0; virtual void getSoundList(std::vector<std::pair<std::string, CSound*> > &subsounds) const =0; }; template <uint NbJoker, bool UseRandom, uint Shift = 5> class CContextSoundContainer : public IContextSoundContainer { typedef std::hash_map<CContextMatcher<NbJoker, UseRandom, Shift>, CSound *, CContextMatcher<NbJoker, UseRandom, Shift>::CHash> THashContextSound; virtual void init(uint *contextArgsIndex) { NLMISC::CFastMem::memcpy(_ContextArgsIndex, contextArgsIndex, sizeof(uint) * NbJoker); } virtual void addSound(CSound *sound, const std::string &baseName) { const std::string &patternName = sound->getName(); nlassert(patternName.size() >= baseName.size()); std::string arg; uint32 args[NbJoker]; // extract the context values std::string::const_iterator first(patternName.begin() + baseName.size()), last(patternName.end()); // std::string::const_iterator first2(baseName.begin()), last2(baseName.end()); // 1st, skip the base name // for (; first == first2; ++first, ++first2); // 2nd, read all the joker values for (uint i=0; i<NbJoker && first != last; ++first) { if (isdigit(int(*first))) { arg += *first; } else if (!arg.empty()) { // end of the argument. args[i++] = atoi(arg.c_str()); arg = ""; } } // read the potential last arg. if (!arg.empty()) { // end of the argument. args[i++] = atoi(arg.c_str()); arg = ""; } if (i != NbJoker) return; nlassert(i==NbJoker); int randomValue; if (UseRandom) { bool ok = false; // 3rd, read the random value (if any) for (uint i=0; first != last; ++first) { if (isdigit(int(*first))) { arg += *first; } else if (!arg.empty()) { nlassert (ok == false); // end of the argument. randomValue = atoi(arg.c_str()); arg = ""; ok = true; } } // read the potential last arg. if (!arg.empty()) { nlassert (ok == false); // end of the argument. randomValue = atoi(arg.c_str()); arg = ""; ok = true; } nlassert (ok == true); } else { randomValue = 0; } // ok, now create the key and storea the sound. CContextMatcher<NbJoker, UseRandom, Shift> cm(args, randomValue); #ifdef _DEBUG char tmp[1024]; char tmp2[1024]; smprintf(tmp, 1024, "Adding sound : %s, args = ", patternName.c_str()); for (uint k=0; k<NbJoker; ++k) { sprintf(tmp2, "%u", args[k]); strcat(tmp, tmp2); } nldebug(tmp); #endif std::pair<THashContextSound::iterator, bool> ret; ret = _ContextSounds.insert(std::make_pair(cm, sound)); if (!ret.second) { THashContextSound::iterator it = _ContextSounds.find(cm); nlassert(it != _ContextSounds.end()); nlwarning("Sound %s has the same context matcher as the sound %s", sound->getName().c_str(), it->second->getName().c_str()); } } virtual CSound *getSound(const CSoundContext &context, uint32 randomValue) { // create a key uint32 args[NbJoker]; for (uint i=0; i<NbJoker; ++i) args[i] = context.Args[_ContextArgsIndex[i]]; CContextMatcher<NbJoker, UseRandom, Shift> cm(args, randomValue); THashContextSound::iterator it = _ContextSounds.find(cm); if (it != _ContextSounds.end()) return it->second; else return 0; } void getSoundList(std::vector<std::pair<std::string, CSound*> > &subsounds) const { THashContextSound::const_iterator first(_ContextSounds.begin()), last(_ContextSounds.end()); for (; first != last; ++first) { subsounds.push_back(std::make_pair(first->second->getName(), first->second)); } } private: uint32 _ContextArgsIndex[NbJoker]; THashContextSound _ContextSounds; }; class CContextSound : public CSound { public: CContextSound(); ~CContextSound(); TSOUND_TYPE getSoundType() { return CSound::SOUND_CONTEXT; }; virtual void importForm(const std::string& filename, NLGEORGES::UFormElm& formRoot); virtual bool isDetailed() const; virtual uint32 getDuration(); virtual void getSubSoundList(std::vector<std::pair<std::string, CSound*> > &subsounds) const; CSound *getContextSound(CSoundContext &context); void init(); void serial(NLMISC::IStream &s); private: std::string _PatternName; std::string _BaseName; uint32 _Random; IContextSoundContainer *_ContextSounds; }; } // NLSOUND #endif //NL_CONTEXT_SOUND_H