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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/debug.h"
#include "sludge/stringy.h"
#include "sludge/allfiles.h"
#include "sludge/moreio.h"
#include "sludge/newfatal.h"
#include "sludge/sludge.h"
#include "sludge/CommonCode/version.h"
namespace Sludge {
bool sliceBusy = true;
Common::File *bigDataFile = NULL;
uint32 startOfDataIndex, startOfTextIndex, startOfSubIndex, startOfObjectIndex;
bool openSubSlice(int num) {
// FILE * dbug = fopen ("debuggy.txt", "at");
// fprintf (dbug, "\nTrying to open sub %i\n", num);
if (sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return false;
}
// fprintf (dbug, "Going to position %li\n", startOfSubIndex + (num << 2));
bigDataFile->seek(startOfSubIndex + (num << 2), 0);
bigDataFile->seek(bigDataFile->readUint32LE(), 0);
// fprintf (dbug, "Told to skip forward to %li\n", ftell (bigDataFile));
// fclose (dbug);
return sliceBusy = true;
}
bool openObjectSlice(int num) {
// FILE * dbug = fopen ("debuggy.txt", "at");
// fprintf (dbug, "\nTrying to open object %i\n", num);
if (sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return false;
}
// fprintf (dbug, "Going to position %li\n", startOfObjectIndex + (num << 2));
bigDataFile->seek(startOfObjectIndex + (num << 2), 0);
bigDataFile->seek(bigDataFile->readUint32LE(), 0);
// fprintf (dbug, "Told to skip forward to %li\n", ftell (bigDataFile));
// fclose (dbug);
return sliceBusy = true;
}
unsigned int openFileFromNum(int num) {
// FILE * dbug = fopen ("debuggy.txt", "at");
if (sliceBusy) {
fatal("Can't read from data file", "I'm already reading something");
return 0;
}
// fprintf (dbug, "\nTrying to open file %i\n", num);
// fprintf (dbug, "Jumping to %li (for index) \n", startOfDataIndex + (num << 2));
bigDataFile->seek(startOfDataIndex + (num << 2), 0);
bigDataFile->seek(bigDataFile->readUint32LE(), 1);
// fprintf (dbug, "Jumping to %li (for data) \n", ftell (bigDataFile));
sliceBusy = true;
// fclose (dbug);
return bigDataFile->readUint32LE();
}
// Converts a string from Windows CP-1252 to UTF-8.
// This is needed for old games.
char *convertString(char *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");
}
}
size_t len1 = strlen(s) + 1;
size_t len2 = 65535;
size_t iconv_value =
#ifdef _WIN32
iconv(convert, (const char **) tmp1, &len1, tmp2, &len2);
#else
iconv(convert, (char **) tmp1, &len1, tmp2, &len2);
#endif
if (iconv_value == (size_t) - 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
}
char *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);
char *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 startAccess() {
int wasBusy = sliceBusy;
sliceBusy = true;
return wasBusy;
}
void finishAccess() {
sliceBusy = false;
}
int32_t startIndex;
void setFileIndices(Common::File *fp, int numLanguages, unsigned int skipBefore) {
if (fp) {
// Keep hold of the file handle, and let things get at it
bigDataFile = fp;
startIndex = fp->pos();
} else {
// No file pointer - this means that we reuse the bigDataFile
fp = bigDataFile;
fp->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) {
fp->seek(fp->readUint32LE(), SEEK_SET);
skipBefore--;
}
startOfTextIndex = fp->pos() + 4;
debug(kSludgeDebugDataLoad, "startOfTextIndex: %i", startOfTextIndex);
fp->seek(fp->readUint32LE(), SEEK_SET);
while (skipAfter) {
fp->seek(fp->readUint32LE(), SEEK_SET);
skipAfter--;
}
startOfSubIndex = fp->pos() + 4;
fp->seek(fp->readUint32LE(), SEEK_CUR);
debug(kSludgeDebugDataLoad, "startOfSubIndex: %i", startOfTextIndex);
startOfObjectIndex = fp->pos() + 4;
fp->seek(fp->readUint32LE(), SEEK_CUR);
debug(kSludgeDebugDataLoad, "startOfObjectIndex: %i", startOfTextIndex);
// Remember that the data section starts here
startOfDataIndex = fp->pos();
debug(kSludgeDebugDataLoad, "startOfDataIndex: %i", startOfTextIndex);
}
} // End of namespace Sludge
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