utils.h

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#ifndef __AUDIO_UTILS_H__INCLUDED__
#define __AUDIO_UTILS_H__INCLUDED__

#include "Types.h"
#include "Exceptions.h"
#include <map>

namespace Audio {

    // Forward declarations
    class Listener;
    class Source;

    Timestamp getGameTime() throw();
    
    Timestamp getRealTime() throw();

    Scalar estimateGain(const Source &src, const Listener &listener) throw();
    
    void sleep(unsigned int ms);
    
    template<typename T> T parseEnum(const std::string &s, const std::map<std::string, T> &enumMap)
    {
        typename std::map<std::string, T>::const_iterator it = enumMap.find(s);
        if (it != enumMap.end())
            return it->second; else
            throw InvalidParametersException("Enumerated value \"" + s + "\" not recognized");
    }
    
    template<typename T> T parseEnum(const std::string &s, const std::map<std::string, T> &enumMap, T deflt)
    {
        typename std::map<std::string, T>::const_iterator it = enumMap.find(s);
        if (it != enumMap.end())
            return it->second; else
            return deflt;
    }
    

}

#endif//__AUDIO_UTILS_H__INCLUDED__