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/*
* The Mana Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
*
* This file is part of The Mana Client.
*
* 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
* 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/>.
*/
#include "net/ea/messagein.h"
#include <SDL.h>
#include <SDL_endian.h>
#define MAKEWORD(low,high) \
((unsigned short)(((unsigned char)(low)) | \
((unsigned short)((unsigned char)(high))) << 8))
namespace EAthena {
MessageIn::MessageIn(const char *data, unsigned int length):
Net::MessageIn(data, length)
{
// Read the message ID
mId = readInt16();
}
int MessageIn::readInt16()
{
Sint16 value = -1;
if (mPos + 2 <= mLength)
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
Sint16 swap;
memcpy(&swap, mData + mPos, sizeof(Sint16));
value = SDL_Swap16(swap);
#else
memcpy(&value, mData + mPos, sizeof(Sint16));
#endif
}
mPos += 2;
return value;
}
int MessageIn::readInt32()
{
Sint32 value = -1;
if (mPos + 4 <= mLength)
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
Sint32 swap;
memcpy(&swap, mData + mPos, sizeof(Sint32));
value = SDL_Swap32(swap);
#else
memcpy(&value, mData + mPos, sizeof(Sint32));
#endif
}
mPos += 4;
return value;
}
}
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