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/*
* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* This program 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 of the License, or (at your
* option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DBC_FILE_LOADER_H
#define DBC_FILE_LOADER_H
#include "Define.h"
#include "Utilities/ByteConverter.h"
#include <cassert>
enum DbcFieldFormat
{
FT_NA='x', //not used or unknown, 4 byte size
FT_NA_BYTE='X', //not used or unknown, byte
FT_STRING='s', //char*
FT_FLOAT='f', //float
FT_INT='i', //uint32
FT_BYTE='b', //uint8
FT_SORT='d', //sorted by this field, field is not included
FT_IND='n', //the same, but parsed to data
FT_LOGIC='l', //Logical (boolean)
FT_SQL_PRESENT='p', //Used in sql format to mark column present in sql dbc
FT_SQL_ABSENT='a' //Used in sql format to mark column absent in sql dbc
};
class TC_COMMON_API DBCFileLoader
{
public:
DBCFileLoader();
~DBCFileLoader();
bool Load(const char *filename, const char *fmt);
class Record
{
public:
float getFloat(size_t field) const
{
assert(field < file.fieldCount);
float val = *reinterpret_cast<float*>(offset+file.GetOffset(field));
EndianConvert(val);
return val;
}
uint32 getUInt(size_t field) const
{
assert(field < file.fieldCount);
uint32 val = *reinterpret_cast<uint32*>(offset+file.GetOffset(field));
EndianConvert(val);
return val;
}
uint8 getUInt8(size_t field) const
{
assert(field < file.fieldCount);
return *reinterpret_cast<uint8*>(offset+file.GetOffset(field));
}
const char *getString(size_t field) const
{
assert(field < file.fieldCount);
size_t stringOffset = getUInt(field);
assert(stringOffset < file.stringSize);
return reinterpret_cast<char*>(file.stringTable + stringOffset);
}
private:
Record(DBCFileLoader &file_, unsigned char *offset_): offset(offset_), file(file_) { }
unsigned char *offset;
DBCFileLoader &file;
friend class DBCFileLoader;
};
// Get record by id
Record getRecord(size_t id);
/// Get begin iterator over records
uint32 GetNumRows() const { return recordCount; }
uint32 GetRowSize() const { return recordSize; }
uint32 GetCols() const { return fieldCount; }
uint32 GetOffset(size_t id) const { return (fieldsOffset != nullptr && id < fieldCount) ? fieldsOffset[id] : 0; }
bool IsLoaded() const { return data != nullptr; }
char* AutoProduceData(char const* fmt, uint32& count, char**& indexTable);
char* AutoProduceStrings(char const* fmt, char* dataTable);
static uint32 GetFormatRecordSize(const char * format, int32 * index_pos = nullptr);
private:
uint32 recordSize;
uint32 recordCount;
uint32 fieldCount;
uint32 stringSize;
uint32 *fieldsOffset;
unsigned char *data;
unsigned char *stringTable;
DBCFileLoader(DBCFileLoader const& right) = delete;
DBCFileLoader& operator=(DBCFileLoader const& right) = delete;
};
#endif
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