mirror of
https://github.com/azerothcore/azerothcore-wotlk.git
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112 lines
4 KiB
C++
112 lines
4 KiB
C++
/*
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* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DBC_FILE_LOADER_H
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#define DBC_FILE_LOADER_H
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#include "Define.h"
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#include "Errors.h"
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#include "Utilities/ByteConverter.h"
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enum DbcFieldFormat
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{
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FT_NA = 'x', //not used or unknown, 4 byte size
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FT_NA_BYTE = 'X', //not used or unknown, byte
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FT_STRING = 's', //char*
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FT_FLOAT = 'f', //float
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FT_INT = 'i', //uint32
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FT_BYTE = 'b', //uint8
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FT_SORT = 'd', //sorted by this field, field is not included
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FT_IND = 'n', //the same, but parsed to data
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FT_LOGIC = 'l' //Logical (boolean)
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};
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class DBCFileLoader
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{
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public:
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DBCFileLoader();
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~DBCFileLoader();
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bool Load(const char* filename, const char* fmt);
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class Record
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{
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public:
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[[nodiscard]] float getFloat(std::size_t field) const
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{
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ASSERT(field < file.fieldCount);
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float val = *reinterpret_cast<float*>(offset + file.GetOffset(field));
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EndianConvert(val);
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return val;
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}
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[[nodiscard]] uint32 getUInt(std::size_t field) const
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{
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ASSERT(field < file.fieldCount);
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uint32 val = *reinterpret_cast<uint32*>(offset + file.GetOffset(field));
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EndianConvert(val);
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return val;
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}
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[[nodiscard]] uint8 getUInt8(std::size_t field) const
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{
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ASSERT(field < file.fieldCount);
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return *reinterpret_cast<uint8*>(offset + file.GetOffset(field));
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}
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[[nodiscard]] const char* getString(std::size_t field) const
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{
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ASSERT(field < file.fieldCount);
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std::size_t stringOffset = getUInt(field);
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ASSERT(stringOffset < file.stringSize);
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return reinterpret_cast<char*>(file.stringTable + stringOffset);
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}
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private:
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Record(DBCFileLoader& file_, unsigned char* offset_): offset(offset_), file(file_) { }
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unsigned char* offset;
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DBCFileLoader& file;
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friend class DBCFileLoader;
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};
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// Get record by id
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Record getRecord(std::size_t id);
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[[nodiscard]] uint32 GetNumRows() const { return recordCount; }
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[[nodiscard]] uint32 GetRowSize() const { return recordSize; }
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[[nodiscard]] uint32 GetCols() const { return fieldCount; }
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[[nodiscard]] uint32 GetOffset(std::size_t id) const { return (fieldsOffset != nullptr && id < fieldCount) ? fieldsOffset[id] : 0; }
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[[nodiscard]] bool IsLoaded() const { return data != nullptr; }
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char* AutoProduceData(char const* fmt, uint32& count, char**& indexTable);
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char* AutoProduceStrings(char const* fmt, char* dataTable);
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static uint32 GetFormatRecordSize(const char* format, int32* index_pos = nullptr);
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private:
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uint32 recordSize;
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uint32 recordCount;
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uint32 fieldCount;
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uint32 stringSize;
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uint32* fieldsOffset;
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unsigned char* data;
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unsigned char* stringTable;
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DBCFileLoader(DBCFileLoader const& right) = delete;
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DBCFileLoader& operator=(DBCFileLoader const& right) = delete;
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};
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#endif
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