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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "queen/queen.h"
#include "queen/resource.h"
namespace Queen {
#define DEMO_JAS_VERSION_OFFSET 0x119A8
#define JAS_VERSION_OFFSET 0x12484
static const char *tableFilename = "queen.tbl";
const GameVersion Resource::_gameVersions[] = {
{ "PEM10", true, false, 0x00000008, 22677657 },
{ "CEM10", false, false, 0x0000584E, 190787021 },
{ "PFM10", true, false, 0x0002CD93, 22157304 },
{ "CFM10", false, false, 0x00032585, 186689095 },
{ "PGM10", true, false, 0x00059ACA, 22240013 },
{ "CGM10", false, false, 0x0005F2A7, 217648975 },
{ "PIM10", true, false, 0x000866B1, 22461366 },
{ "CIM10", false, false, 0x0008BEE2, 190795582 },
{ "CSM10", false, false, 0x000B343C, 190730602 },
{ "PE100", true, true, 0x000DA981, 3724538 },
{ "PE100", true, true, 0x000DB63A, 3732177 }
};
Resource::Resource(const Common::String &datafilePath, const char *datafileName)
: _JAS2Pos(0), _datafilePath(datafilePath), _resourceEntries(0), _resourceTable(NULL) {
_resourceFile = new File();
_resourceFile->open(datafileName, _datafilePath);
if (_resourceFile->isOpen() == false)
error("Could not open resource file '%s%s'", _datafilePath.c_str(), datafileName);
if (_resourceFile->readUint32BE() == 'QTBL') {
readTableCompResource();
} else {
_compression = COMPRESSION_NONE;
_gameVersion = detectGameVersion(_resourceFile->size());
if (!readTableFile()) {
//check if it is the english floppy version, for which we have a hardcoded version of the tables
if (!strcmp(_gameVersion->versionString, _gameVersions[VER_ENG_FLOPPY].versionString)) {
_gameVersion = &_gameVersions[VER_ENG_FLOPPY];
_resourceEntries = 1076;
_resourceTable = _resourceTablePEM10;
} else {
error("Couldn't find tablefile '%s%s'", _datafilePath.c_str(), tableFilename);
}
}
}
if (strcmp(_gameVersion->versionString, JASVersion()))
error("Verifying game version failed! (expected: '%s', found: '%s')", _gameVersion->versionString, JASVersion());
debug(5, "Detected game version: %s, which has %d resource entries", _gameVersion->versionString, _resourceEntries);
_JAS2Ptr = (char *)loadFile("QUEEN2.JAS", 0);
}
Resource::~Resource() {
_resourceFile->close();
if(_resourceTable != _resourceTablePEM10)
delete[] _resourceTable;
delete[] _JAS2Ptr;
}
int32 Resource::resourceIndex(const char *filename) {
char entryName[14];
char *ptr = entryName;
assert(strlen(filename));
strcpy(entryName, filename);
do
*ptr = toupper(*ptr);
while (*ptr++);
uint32 low = 0;
uint32 high = _resourceEntries - 1;
if (!strcmp(entryName, _resourceTable[low].filename))
return low;
if (!strcmp(entryName, _resourceTable[high].filename))
return high;
//Use simple binary search to locate file
for(;;) {
uint32 cur = (low + high) / 2;
int32 diff = strcmp(entryName, _resourceTable[cur].filename);
if (!diff)
return cur;
if ((cur == low) || (cur == high))
break;
if (diff > 0)
low = cur;
else
high = cur;
}
warning("Couldn't find file '%s'", entryName);
return -1;
}
char *Resource::getJAS2Line() {
char *startOfLine = _JAS2Ptr + _JAS2Pos;
char *curPos = startOfLine;
while (*curPos++ != 0xd) ;
*(curPos - 1) = '\0'; // '\r'
*curPos = '\0'; // '\n'
_JAS2Pos = (curPos - _JAS2Ptr) + 1;
return startOfLine;
}
uint32 Resource::fileSize(const char *filename) {
return _resourceTable[resourceIndex(filename)].size;
}
uint32 Resource::fileOffset(const char *filename) {
return _resourceTable[resourceIndex(filename)].offset;
}
uint8 *Resource::loadFile(const char *filename, uint32 skipBytes, byte *dstBuf) {
uint32 size = fileSize(filename) - skipBytes;
if (dstBuf == NULL)
dstBuf = new byte[size];
// skip 'skipBytes' bytes (useful for headers)
_resourceFile->seek(fileOffset(filename) + skipBytes, SEEK_SET);
_resourceFile->read(dstBuf, size);
return dstBuf;
}
uint8 *Resource::loadFileMalloc(const char *filename, uint32 skipBytes, byte *dstBuf) {
return loadFile(filename, skipBytes, (byte *)malloc(fileSize(filename) - skipBytes));
}
bool Resource::exists(const char *filename) {
return resourceIndex(filename) >= 0;
}
const char *Resource::JASVersion() {
static char versionStr[6];
if (_gameVersion->isDemo)
_resourceFile->seek(fileOffset("QUEEN.JAS") + DEMO_JAS_VERSION_OFFSET, SEEK_SET );
else
_resourceFile->seek(fileOffset("QUEEN.JAS") + JAS_VERSION_OFFSET, SEEK_SET);
_resourceFile->read(versionStr, 6);
return versionStr;
}
bool Resource::isDemo() {
return _gameVersion->isDemo;
}
bool Resource::isFloppy() {
return _gameVersion->isFloppy;
}
Language Resource::getLanguage() {
switch (_gameVersion->versionString[1]) {
case 'E':
return ENGLISH;
case 'G':
return GERMAN;
case 'F':
return FRENCH;
case 'I':
return ITALIAN;
case 'S':
return SPANISH;
default:
return ENGLISH;
}
}
const GameVersion *Resource::detectGameVersion(uint32 dataFilesize) {
//detect game version based on resource file size.
//we try to verify that it is indeed the version we think it is later on
const GameVersion *pgv = _gameVersions;
int i;
for (i = 0; i < VER_NUMBER; ++i, ++pgv) {
if (pgv->dataFileSize == dataFilesize) {
return pgv;
}
}
error("Unknown/unsupported FOTAQ version");
return NULL;
}
bool Resource::readTableFile() {
File tableFile;
tableFile.open(tableFilename, _datafilePath);
if (!tableFile.isOpen())
tableFile.open(tableFilename, ""); //try current directory
if (tableFile.isOpen() && tableFile.readUint32BE() == 'QTBL') {
tableFile.seek(_gameVersion->tableOffset);
_resourceEntries = tableFile.readUint16BE();
_resourceTable = new ResourceEntry[_resourceEntries];
ResourceEntry *pre = _resourceTable;
for (uint32 i = 0; i < _resourceEntries; ++i, ++pre) {
tableFile.read(pre->filename, 12);
pre->filename[12] = '\0';
pre->inBundle = tableFile.readByte();
pre->offset = tableFile.readUint32BE();
pre->size = tableFile.readUint32BE();
}
return true;
}
return false;
}
void Resource::readTableCompResource() {
GameVersion *gv = new GameVersion;
_resourceFile->read(gv->versionString, 6);
gv->isFloppy = _resourceFile->readByte() != 0;
gv->isDemo = _resourceFile->readByte() != 0;
_compression = _resourceFile->readByte();
_resourceEntries = _resourceFile->readUint16BE();
_gameVersion = gv;
_resourceFile->seek(15, SEEK_SET);
_resourceTable = new ResourceEntry[_resourceEntries];
ResourceEntry *pre = _resourceTable;
for (uint32 i = 0; i < _resourceEntries; ++i, ++pre) {
_resourceFile->read(pre->filename, 12);
pre->filename[12] = '\0';
pre->inBundle = _resourceFile->readByte();
pre->offset = _resourceFile->readUint32BE();
pre->size = _resourceFile->readUint32BE();
}
}
File *Resource::giveCompressedSound(const char *filename) {
assert(strstr(filename, ".SB"));
_resourceFile->seek(fileOffset(filename), SEEK_SET);
return _resourceFile;
}
} // End of namespace Queen
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