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https://github.com/mod-playerbots/azerothcore-wotlk.git
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Using TC structure allowing easier patches importing
This commit is contained in:
Yehonal
312
src/common/DataStores/DBCFileLoader.cpp
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312
src/common/DataStores/DBCFileLoader.cpp
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/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: http://github.com/azerothcore/azerothcore-wotlk/LICENSE-GPL2
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* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "DBCFileLoader.h"
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#include "Errors.h"
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DBCFileLoader::DBCFileLoader() : recordSize(0), recordCount(0), fieldCount(0), stringSize(0), fieldsOffset(NULL), data(NULL), stringTable(NULL) { }
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bool DBCFileLoader::Load(const char* filename, const char* fmt)
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{
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uint32 header;
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if (data)
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{
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delete [] data;
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data = NULL;
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}
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FILE* f = fopen(filename, "rb");
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if (!f)
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return false;
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if (fread(&header, 4, 1, f) != 1) // Number of records
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{
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fclose(f);
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return false;
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}
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EndianConvert(header);
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if (header != 0x43424457) //'WDBC'
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{
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fclose(f);
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return false;
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}
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if (fread(&recordCount, 4, 1, f) != 1) // Number of records
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{
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fclose(f);
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return false;
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}
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EndianConvert(recordCount);
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if (fread(&fieldCount, 4, 1, f) != 1) // Number of fields
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{
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fclose(f);
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return false;
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}
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EndianConvert(fieldCount);
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if (fread(&recordSize, 4, 1, f) != 1) // Size of a record
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{
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fclose(f);
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return false;
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}
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EndianConvert(recordSize);
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if (fread(&stringSize, 4, 1, f) != 1) // String size
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{
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fclose(f);
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return false;
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}
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EndianConvert(stringSize);
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fieldsOffset = new uint32[fieldCount];
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fieldsOffset[0] = 0;
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for (uint32 i = 1; i < fieldCount; ++i)
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{
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fieldsOffset[i] = fieldsOffset[i - 1];
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if (fmt[i - 1] == 'b' || fmt[i - 1] == 'X') // byte fields
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fieldsOffset[i] += sizeof(uint8);
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else // 4 byte fields (int32/float/strings)
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fieldsOffset[i] += sizeof(uint32);
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}
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data = new unsigned char[recordSize * recordCount + stringSize];
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stringTable = data + recordSize*recordCount;
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if (fread(data, recordSize * recordCount + stringSize, 1, f) != 1)
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{
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fclose(f);
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return false;
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}
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fclose(f);
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return true;
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}
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DBCFileLoader::~DBCFileLoader()
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{
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if (data)
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delete [] data;
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if (fieldsOffset)
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delete [] fieldsOffset;
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}
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DBCFileLoader::Record DBCFileLoader::getRecord(size_t id)
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{
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assert(data);
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return Record(*this, data + id * recordSize);
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}
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uint32 DBCFileLoader::GetFormatRecordSize(const char* format, int32* index_pos)
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{
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uint32 recordsize = 0;
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int32 i = -1;
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for (uint32 x = 0; format[x]; ++x)
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{
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switch (format[x])
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{
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case FT_FLOAT:
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recordsize += sizeof(float);
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break;
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case FT_INT:
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recordsize += sizeof(uint32);
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break;
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case FT_STRING:
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recordsize += sizeof(char*);
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break;
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case FT_SORT:
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i = x;
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break;
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case FT_IND:
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i = x;
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recordsize += sizeof(uint32);
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break;
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case FT_BYTE:
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recordsize += sizeof(uint8);
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break;
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case FT_NA:
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case FT_NA_BYTE:
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break;
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case FT_LOGIC:
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ASSERT(false && "Attempted to load DBC files that do not have field types that match what is in the core. Check DBCfmt.h or your DBC files.");
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break;
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default:
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ASSERT(false && "Unknown field format character in DBCfmt.h");
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break;
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}
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}
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if (index_pos)
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*index_pos = i;
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return recordsize;
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}
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char* DBCFileLoader::AutoProduceData(const char* format, uint32& records, char**& indexTable, uint32 sqlRecordCount, uint32 sqlHighestIndex, char*& sqlDataTable)
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{
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/*
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format STRING, NA, FLOAT, NA, INT <=>
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struct{
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char* field0,
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float field1,
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int field2
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}entry;
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this func will generate entry[rows] data;
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*/
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typedef char* ptr;
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if (strlen(format) != fieldCount)
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return NULL;
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//get struct size and index pos
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int32 i;
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uint32 recordsize = GetFormatRecordSize(format, &i);
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if (i >= 0)
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{
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uint32 maxi = 0;
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//find max index
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for (uint32 y = 0; y < recordCount; ++y)
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{
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uint32 ind = getRecord(y).getUInt(i);
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if (ind > maxi)
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maxi = ind;
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}
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// If higher index avalible from sql - use it instead of dbcs
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if (sqlHighestIndex > maxi)
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maxi = sqlHighestIndex;
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++maxi;
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records = maxi;
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indexTable = new ptr[maxi];
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memset(indexTable, 0, maxi * sizeof(ptr));
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}
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else
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{
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records = recordCount + sqlRecordCount;
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indexTable = new ptr[recordCount + sqlRecordCount];
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}
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char* dataTable = new char[(recordCount + sqlRecordCount) * recordsize];
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uint32 offset = 0;
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for (uint32 y = 0; y < recordCount; ++y)
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{
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if (i >= 0)
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indexTable[getRecord(y).getUInt(i)] = &dataTable[offset];
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else
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indexTable[y] = &dataTable[offset];
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for (uint32 x=0; x < fieldCount; ++x)
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{
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switch (format[x])
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{
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case FT_FLOAT:
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*((float*)(&dataTable[offset])) = getRecord(y).getFloat(x);
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offset += sizeof(float);
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break;
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case FT_IND:
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case FT_INT:
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*((uint32*)(&dataTable[offset])) = getRecord(y).getUInt(x);
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offset += sizeof(uint32);
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break;
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case FT_BYTE:
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*((uint8*)(&dataTable[offset])) = getRecord(y).getUInt8(x);
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offset += sizeof(uint8);
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break;
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case FT_STRING:
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*((char**)(&dataTable[offset])) = NULL; // will replace non-empty or "" strings in AutoProduceStrings
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offset += sizeof(char*);
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break;
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case FT_LOGIC:
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ASSERT(false && "Attempted to load DBC files that do not have field types that match what is in the core. Check DBCfmt.h or your DBC files.");
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break;
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case FT_NA:
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case FT_NA_BYTE:
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case FT_SORT:
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break;
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default:
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ASSERT(false && "Unknown field format character in DBCfmt.h");
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break;
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}
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}
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}
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sqlDataTable = dataTable + offset;
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return dataTable;
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}
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char* DBCFileLoader::AutoProduceStrings(const char* format, char* dataTable)
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{
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if (strlen(format) != fieldCount)
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return NULL;
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char* stringPool = new char[stringSize];
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memcpy(stringPool, stringTable, stringSize);
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uint32 offset = 0;
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for (uint32 y = 0; y < recordCount; ++y)
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{
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for (uint32 x = 0; x < fieldCount; ++x)
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{
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switch (format[x])
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{
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case FT_FLOAT:
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offset += sizeof(float);
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break;
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case FT_IND:
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case FT_INT:
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offset += sizeof(uint32);
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break;
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case FT_BYTE:
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offset += sizeof(uint8);
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break;
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case FT_STRING:
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{
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// fill only not filled entries
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char** slot = (char**)(&dataTable[offset]);
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if (!*slot || !**slot)
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{
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const char * st = getRecord(y).getString(x);
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*slot=stringPool+(st-(const char*)stringTable);
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}
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offset += sizeof(char*);
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break;
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}
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case FT_LOGIC:
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ASSERT(false && "Attempted to load DBC files that does not have field types that match what is in the core. Check DBCfmt.h or your DBC files.");
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break;
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case FT_NA:
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case FT_NA_BYTE:
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case FT_SORT:
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break;
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default:
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ASSERT(false && "Unknown field format character in DBCfmt.h");
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break;
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}
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}
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}
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return stringPool;
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}
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