llfeaturemanager.h

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#ifndef LL_LLFEATUREMANAGER_H
#define LL_LLFEATUREMANAGER_H

#include "stdtypes.h"

#include "llstring.h"
#include "llskipmap.h"
#include <map>

class LLFeatureInfo
{
public:
        LLFeatureInfo() : mValid(FALSE), mAvailable(FALSE), mRecommendedLevel(-1) {}
        LLFeatureInfo(const char *name, const BOOL available, const S32 level);

        BOOL isValid() const    { return mValid; };

public:
        BOOL            mValid;
        LLString        mName;
        BOOL            mAvailable;
        S32                     mRecommendedLevel;
};


class LLFeatureList
{
public:
        LLFeatureList(const char *name = "default");
        virtual ~LLFeatureList();

        BOOL isFeatureAvailable(const char *name);
        S32 getRecommendedLevel(const char *name);

        void setFeatureAvailable(const char *name, const BOOL available);
        void setRecommendedLevel(const char *name, const S32 level);

        BOOL loadFeatureList(FILE *fp);

        BOOL maskList(LLFeatureList &mask);

        void addFeature(const char *name, const BOOL available, const S32 level);

        void dump();
protected:
        LLString        mName;
        typedef std::map<LLString, LLFeatureInfo> feature_map_t;
        feature_map_t   mFeatures;
};


class LLFeatureManager : public LLFeatureList
{
public:
        LLFeatureManager() : mInited(FALSE), mTableVersion(0), mSafe(FALSE), mGPUClass(0) {}

        void maskCurrentList(const char *name); // Mask the current feature list with the named list

        BOOL loadFeatureTables();

        S32     getGPUClass()                                   { return mGPUClass; }
        std::string& getGPUString()             { return mGPUString; }
        
        void cleanupFeatureTables();

        S32 getVersion() const                          { return mTableVersion; }
        void setSafe(const BOOL safe)           { mSafe = safe; }
        BOOL isSafe() const                                     { return mSafe; }

        LLFeatureList *findMask(const char *name);
        BOOL maskFeatures(const char *name);


        void initCPUFeatureMasks();
        void initGraphicsFeatureMasks();
        
        void applyRecommendedFeatures();

protected:
        void loadGPUClass();
        void initBaseMask();

        std::map<LLString, LLFeatureList *> mMaskList;
        BOOL            mInited;
        S32                     mTableVersion;
        BOOL            mSafe;                                  // Reinitialize everything to the "safe" mask
        S32                     mGPUClass;
        std::string     mGPUString;
};

extern LLFeatureManager *gFeatureManagerp;

#endif // LL_LLFEATUREMANAGER_H

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