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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#include "engines/wintermute/dcgf.h"
#include "engines/wintermute/Base/BGame.h"
#include "engines/wintermute/Base/file/BSaveThumbFile.h"
#include "engines/wintermute/PlatformSDL.h"
namespace WinterMute {
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////
CBSaveThumbFile::CBSaveThumbFile(CBGame *inGame): CBFile(inGame) {
_data = NULL;
}
//////////////////////////////////////////////////////////////////////////
CBSaveThumbFile::~CBSaveThumbFile() {
Close();
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBSaveThumbFile::Open(const Common::String &filename) {
Close();
if (scumm_strnicmp(filename.c_str(), "savegame:", 9) != 0) return E_FAIL;
char *tempFilename = new char[strlen(filename.c_str()) - 8];
strcpy(tempFilename, filename.c_str() + 9);
for (int i = 0; i < strlen(tempFilename); i++) {
if (tempFilename[i] < '0' || tempFilename[i] > '9') {
tempFilename[i] = '\0';
break;
}
}
// get slot number from name
int slot = atoi(tempFilename);
delete [] tempFilename;
char slotFilename[MAX_PATH + 1];
Game->GetSaveSlotFilename(slot, slotFilename);
CBPersistMgr *pm = new CBPersistMgr(Game);
if (!pm) return E_FAIL;
Game->_dEBUG_AbsolutePathWarning = false;
if (FAILED(pm->initLoad(slotFilename))) {
Game->_dEBUG_AbsolutePathWarning = true;
delete pm;
return E_FAIL;
}
Game->_dEBUG_AbsolutePathWarning = true;
HRESULT res;
if (pm->_thumbnailDataSize != 0) {
_data = new byte[pm->_thumbnailDataSize];
memcpy(_data, pm->_thumbnailData, pm->_thumbnailDataSize);
_size = pm->_thumbnailDataSize;
res = S_OK;
} else res = E_FAIL;
delete pm;
return res;
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBSaveThumbFile::Close() {
delete[] _data;
_data = NULL;
_pos = 0;
_size = 0;
return S_OK;
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBSaveThumbFile::Read(void *buffer, uint32 size) {
if (!_data || _pos + size > _size) return E_FAIL;
memcpy(buffer, (byte *)_data + _pos, size);
_pos += size;
return S_OK;
}
//////////////////////////////////////////////////////////////////////////
HRESULT CBSaveThumbFile::Seek(uint32 pos, TSeek origin) {
if (!_data) return E_FAIL;
uint32 newPos = 0;
switch (origin) {
case SEEK_TO_BEGIN:
newPos = pos;
break;
case SEEK_TO_END:
newPos = _size + pos;
break;
case SEEK_TO_CURRENT:
newPos = _pos + pos;
break;
}
if (newPos < 0 || newPos > _size) return E_FAIL;
else _pos = newPos;
return S_OK;
}
} // end of namespace WinterMute
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