[7552] Move client version dependend DBC code to src/game.

src/shared/Database/DBCFileLoader.cpp

@@ -0,0 +1,258 @@
+/*
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "DBCFileLoader.h"
+
+DBCFileLoader::DBCFileLoader()
+{
+    data = NULL;
+    fieldsOffset = NULL;
+}
+
+bool DBCFileLoader::Load(const char *filename, const char *fmt)
+{
+
+    uint32 header;
+    if(data)
+    {
+        delete [] data;
+        data=NULL;
+    }
+
+    FILE * f=fopen(filename,"rb");
+    if(!f)return false;
+
+    if(fread(&header,4,1,f)!=1)                             // Number of records
+        return false;
+
+    EndianConvert(header);
+    if(header!=0x43424457)
+        return false;                                       //'WDBC'
+
+    if(fread(&recordCount,4,1,f)!=1)                        // Number of records
+        return false;
+
+    EndianConvert(recordCount);
+
+    if(fread(&fieldCount,4,1,f)!=1)                         // Number of fields
+        return false;
+
+    EndianConvert(fieldCount);
+
+    if(fread(&recordSize,4,1,f)!=1)                         // Size of a record
+        return false;
+
+    EndianConvert(recordSize);
+
+    if(fread(&stringSize,4,1,f)!=1)                         // String size
+        return false;
+
+    EndianConvert(stringSize);
+
+    fieldsOffset = new uint32[fieldCount];
+    fieldsOffset[0] = 0;
+    for(uint32 i = 1; i < fieldCount; i++)
+    {
+        fieldsOffset[i] = fieldsOffset[i - 1];
+        if (fmt[i - 1] == 'b' || fmt[i - 1] == 'X')         // byte fields
+            fieldsOffset[i] += 1;
+        else                                                // 4 byte fields (int32/float/strings)
+            fieldsOffset[i] += 4;
+    }
+
+    data = new unsigned char[recordSize*recordCount+stringSize];
+    stringTable = data + recordSize*recordCount;
+
+    if(fread(data,recordSize*recordCount+stringSize,1,f)!=1)
+        return false;
+
+    fclose(f);
+    return true;
+}
+
+DBCFileLoader::~DBCFileLoader()
+{
+    if(data)
+        delete [] data;
+    if(fieldsOffset)
+        delete [] fieldsOffset;
+}
+
+DBCFileLoader::Record DBCFileLoader::getRecord(size_t id)
+{
+    assert(data);
+    return Record(*this, data + id*recordSize);
+}
+
+uint32 DBCFileLoader::GetFormatRecordSize(const char * format,int32* index_pos)
+{
+    uint32 recordsize = 0;
+    int32 i = -1;
+    for(uint32 x=0; format[x];++x)
+        switch(format[x])
+        {
+            case FT_FLOAT:
+            case FT_INT:
+                recordsize+=4;
+                break;
+            case FT_STRING:
+                recordsize+=sizeof(char*);
+                break;
+            case FT_SORT:
+                i=x;
+                break;
+            case FT_IND:
+                i=x;
+                recordsize+=4;
+                break;
+            case FT_BYTE:
+                recordsize += 1;
+                break;
+        }
+
+    if(index_pos)
+        *index_pos = i;
+
+    return recordsize;
+}
+
+char* DBCFileLoader::AutoProduceData(const char* format, uint32& records, char**& indexTable)
+{
+    /*
+    format STRING, NA, FLOAT,NA,INT <=>
+    struct{
+    char* field0,
+    float field1,
+    int field2
+    }entry;
+
+    this func will generate  entry[rows] data;
+    */
+
+    typedef char * ptr;
+    if(strlen(format)!=fieldCount)
+        return NULL;
+
+    //get struct size and index pos
+    int32 i;
+    uint32 recordsize=GetFormatRecordSize(format,&i);
+
+    if(i>=0)
+    {
+        uint32 maxi=0;
+        //find max index
+        for(uint32 y=0;y<recordCount;y++)
+        {
+            uint32 ind=getRecord(y).getUInt (i);
+            if(ind>maxi)maxi=ind;
+        }
+
+        ++maxi;
+        records=maxi;
+        indexTable=new ptr[maxi];
+        memset(indexTable,0,maxi*sizeof(ptr));
+    }
+    else
+    {
+        records = recordCount;
+        indexTable = new ptr[recordCount];
+    }
+
+    char* dataTable= new char[recordCount*recordsize];
+
+    uint32 offset=0;
+
+    for(uint32 y =0;y<recordCount;y++)
+    {
+        if(i>=0)
+        {
+            indexTable[getRecord(y).getUInt(i)]=&dataTable[offset];
+        }
+        else
+            indexTable[y]=&dataTable[offset];
+
+        for(uint32 x=0;x<fieldCount;x++)
+        {
+            switch(format[x])
+            {
+                case FT_FLOAT:
+                    *((float*)(&dataTable[offset]))=getRecord(y).getFloat(x);
+                    offset+=4;
+                    break;
+                case FT_IND:
+                case FT_INT:
+                    *((uint32*)(&dataTable[offset]))=getRecord(y).getUInt(x);
+                    offset+=4;
+                    break;
+                case FT_BYTE:
+                    *((uint8*)(&dataTable[offset]))=getRecord(y).getUInt8(x);
+                    offset+=1;
+                    break;
+                case FT_STRING:
+                    *((char**)(&dataTable[offset]))=NULL;   // will be replaces non-empty or "" strings in AutoProduceStrings
+                    offset+=sizeof(char*);
+                    break;
+            }
+        }
+    }
+
+    return dataTable;
+}
+
+char* DBCFileLoader::AutoProduceStrings(const char* format, char* dataTable)
+{
+    if(strlen(format)!=fieldCount)
+        return NULL;
+
+    char* stringPool= new char[stringSize];
+    memcpy(stringPool,stringTable,stringSize);
+
+    uint32 offset=0;
+
+    for(uint32 y =0;y<recordCount;y++)
+    {
+        for(uint32 x=0;x<fieldCount;x++)
+            switch(format[x])
+        {
+            case FT_FLOAT:
+            case FT_IND:
+            case FT_INT:
+                offset+=4;
+                break;
+            case FT_BYTE:
+                offset+=1;
+                break;
+            case FT_STRING:
+                // fill only not filled entries
+                char** slot = (char**)(&dataTable[offset]);
+                if(!*slot || !**slot)
+                {
+                    const char * st = getRecord(y).getString(x);
+                    *slot=stringPool+(st-(const char*)stringTable);
+                }
+                offset+=sizeof(char*);
+                break;
+        }
+    }
+
+    return stringPool;
+}