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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.
*
*/
#include "common/file.h"
#include "common/debug.h"
#include "sludge/allfiles.h"
#include "sludge/moreio.h"
#include "sludge/newfatal.h"
#include "sludge/sludge.h"
#include "sludge/version.h"
namespace Sludge {
bool ResourceManager::openSubSlice(int num) {
if (_sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return false;
}
_bigDataFile->seek(_startOfSubIndex + (num << 2), 0);
_bigDataFile->seek(_bigDataFile->readUint32LE(), 0);
return _sliceBusy = true;
}
bool ResourceManager::openObjectSlice(int num) {
if (_sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return false;
}
_bigDataFile->seek(_startOfObjectIndex + (num << 2), 0);
_bigDataFile->seek(_bigDataFile->readUint32LE(), 0);
return _sliceBusy = true;
}
uint ResourceManager::openFileFromNum(int num) {
if (_sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return 0;
}
_bigDataFile->seek(_startOfDataIndex + (num << 2), 0);
_bigDataFile->seek(_bigDataFile->readUint32LE(), 1);
_sliceBusy = true;
return _bigDataFile->readUint32LE();
}
// Converts a string from Windows CP-1252 to UTF-8.
// This is needed for old games.
Common::String ResourceManager::convertString(const Common::String &s) {
#if 0
static char *buf = NULL;
if (! buf) {
buf = new char [65536];
if (! checkNew(buf)) return NULL;
}
char **tmp1 = (char **) &s;
char **tmp2 = (char **) &buf;
char *sOrig = s;
char *bufOrig = buf;
#if defined __unix__ && !(defined __APPLE__)
iconv_t convert = iconv_open("UTF-8", "ISO8859-2");
#else
iconv_t convert = iconv_open("UTF-8", "CP1250");
#endif
if (convert == (iconv_t) - 1) {
switch (errno) {
case EINVAL:
fprintf(stderr, "Error: Encoding not supported by iconv.\n");
break;
default:
fprintf(stderr, "Error: Could not open iconv conversion descriptor.\n");
}
}
uint len1 = strlen(s) + 1;
uint len2 = 65535;
uint iconv_value =
#ifdef _WIN32
iconv(convert, (const char **) tmp1, &len1, tmp2, &len2);
#else
iconv(convert, (char **) tmp1, &len1, tmp2, &len2);
#endif
if (iconv_value == (uint) - 1) {
switch (errno) {
/* See "man 3 iconv" for an explanation. */
case EILSEQ:
fprintf(stderr, "Invalid multibyte sequence.\n");
break;
case EINVAL:
fprintf(stderr, "Incomplete multibyte sequence.\n");
break;
case E2BIG:
fprintf(stderr, "No more room.\n");
break;
default:
fprintf(stderr, "Error: %s.\n", strerror(errno));
}
fatal("Conversion to Unicode failed. This can be fixed by recompiling the game in a current version of the SLUDGE Development Kit, but this error should never happen. Congratulations, you've found a bug in the SLUDGE engine! Please let us know about it.");
}
iconv_close(convert);
delete [] sOrig;
return copyString(buf = bufOrig);
#endif
return s; //TODO: false value
}
Common::String ResourceManager::getNumberedString(int value) {
if (_sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return NULL;
}
_bigDataFile->seek((value << 2) + _startOfTextIndex, 0);
value = _bigDataFile->readUint32LE();
_bigDataFile->seek(value, 0);
Common::String s = readString(_bigDataFile);
if (gameVersion < VERSION(2, 2)) {
// This is an older game - We need to convert the string to UTF-8
s = convertString(s);
}
return s;
}
bool ResourceManager::startAccess() {
int wasBusy = _sliceBusy;
_sliceBusy = true;
return wasBusy;
}
void ResourceManager::finishAccess() {
_sliceBusy = false;
}
void ResourceManager::setData(Common::File *fp) {
_bigDataFile = fp;
_startIndex = fp->pos();
}
void ResourceManager::setFileIndices(uint numLanguages, uint skipBefore) {
_bigDataFile->seek(_startIndex, SEEK_SET);
_sliceBusy = false;
if (skipBefore > numLanguages) {
warning("Not a valid language ID! Using default instead.");
skipBefore = 0;
}
// STRINGS
int skipAfter = numLanguages - skipBefore;
while (skipBefore) {
_bigDataFile->seek(_bigDataFile->readUint32LE(), SEEK_SET);
skipBefore--;
}
_startOfTextIndex = _bigDataFile->pos() + 4;
debugC(2, kSludgeDebugDataLoad, "startOfTextIndex: %i", _startOfTextIndex);
_bigDataFile->seek(_bigDataFile->readUint32LE(), SEEK_SET);
while (skipAfter) {
_bigDataFile->seek(_bigDataFile->readUint32LE(), SEEK_SET);
skipAfter--;
}
_startOfSubIndex = _bigDataFile->pos() + 4;
_bigDataFile->seek(_bigDataFile->readUint32LE(), SEEK_CUR);
debugC(2, kSludgeDebugDataLoad, "startOfSubIndex: %i", _startOfSubIndex);
_startOfObjectIndex = _bigDataFile->pos() + 4;
_bigDataFile->seek(_bigDataFile->readUint32LE(), SEEK_CUR);
debugC(2, kSludgeDebugDataLoad, "startOfObjectIndex: %i", _startOfObjectIndex);
// Remember that the data section starts here
_startOfDataIndex = _bigDataFile->pos();
debugC(2, kSludgeDebugDataLoad, "startOfDataIndex: %i", _startOfDataIndex);
}
} // End of namespace Sludge
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