scummvm/engines/cine/msg.cpp
2011-05-12 01:16:22 +02:00

73 lines
2.5 KiB
C++

/* 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.
*
*/
#include "common/debug.h"
#include "common/endian.h"
#include "common/textconsole.h"
#include "cine/msg.h"
#include "cine/various.h"
namespace Cine {
void loadMsg(char *pMsgName) {
uint32 sourceSize;
checkDataDisk(-1);
g_cine->_messageTable.clear();
byte *dataPtr = readBundleFile(findFileInBundle(pMsgName), &sourceSize);
setMouseCursor(MOUSE_CURSOR_DISK);
uint count = READ_BE_UINT16(dataPtr);
uint messageLenPos = 2;
uint messageDataPos = messageLenPos + 2 * count;
// Read in the messages
for (uint i = 0; i < count; i++) {
// Read message's length
uint messageLen = READ_BE_UINT16(dataPtr + messageLenPos);
messageLenPos += 2;
// Store the read message.
// This code works around input data that has empty strings residing outside the input
// buffer (e.g. message indexes 58-254 in BATEAU.MSG in PROCS08 in Operation Stealth).
if (messageDataPos < sourceSize) {
g_cine->_messageTable.push_back((const char *)(dataPtr + messageDataPos));
} else {
if (messageLen > 0) { // Only warn about overflowing non-empty strings
warning("loadMsg(%s): message (%d. / %d) is overflowing the input buffer. Replacing it with an empty string", pMsgName, i + 1, count);
} else {
debugC(5, kCineDebugPart, "loadMsg(%s): empty message (%d. / %d) resides outside input buffer", pMsgName, i + 1, count);
}
// Message resides outside the input buffer so we replace it with an empty string
g_cine->_messageTable.push_back("");
}
// Jump to the next message
messageDataPos += messageLen;
}
free(dataPtr);
}
} // End of namespace Cine