compressed_translation.h

/*************************************************************************/
/*  compressed_translation.h                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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#ifndef COMPRESSED_TRANSLATION_H
#define COMPRESSED_TRANSLATION_H

#include "translation.h"

class PHashTranslation : public Translation {

    OBJ_TYPE(PHashTranslation,Translation);


    //this translation uses a sort of modified perfect hash algorithm
    //it requieres hashing strings twice and then does a binary search,
    //so it's slower, but at the same time it has an extreemly high chance
    //of catching untranslated strings

    //load/store friendly types
    DVector<int> hash_table;
    DVector<int> bucket_table;
    DVector<uint8_t> strings;


    struct Bucket {

        int size;
        uint32_t func;

        struct Elem {

            uint32_t key;
            uint32_t str_offset;
            uint32_t comp_size;
            uint32_t uncomp_size;
        };

        Elem elem[1];
    };

    _FORCE_INLINE_ uint32_t hash( uint32_t d, const char *p_str ) const {

        if (d==0)
            d=0x1000193;
        while(*p_str) {

            d = (d * 0x1000193) ^ uint32_t(*p_str);
            p_str++;
        }

        return d;
    }
protected:

    bool _set(const StringName& p_name, const Variant& p_value);
    bool _get(const StringName& p_name,Variant &r_ret) const;
    void _get_property_list( List<PropertyInfo> *p_list) const;
    static void _bind_methods();

public:

    virtual StringName get_message(const StringName& p_src_text) const; //overridable for other implementations
    void generate(const Ref<Translation> &p_from);

    PHashTranslation();
};

#endif // COMPRESSED_TRANSLATION_H