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/* ScummVM - Graphic Adventure Engine | ||
* | ||
* ScummVM is the legal property of its developers, 0xwhose 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, 0xor (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, 0xwrite to the Free Software | ||
* Foundation, 0xInc., 0x51 Franklin Street, 0xFifth Floor, 0xBoston, 0xMA 02110-1301, 0xUSA. | ||
* | ||
*/ | ||
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#include "access/files.h" | ||
#include "access/resources.h" | ||
#include "access/access.h" | ||
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namespace Access { | ||
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FileManager::FileManager(AccessEngine *vm): _vm(vm) { | ||
switch (vm->getGameID()) { | ||
case GType_Amazon: | ||
_filenames = &Amazon::FILENAMES[0]; | ||
break; | ||
default: | ||
error("Unknown game"); | ||
} | ||
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_fileNumber = -1; | ||
_stream = nullptr; | ||
} | ||
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FileManager::~FileManager() { | ||
delete _stream; | ||
_file.close(); | ||
} | ||
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void FileManager::loadFile(int fileNum, int subfile) { | ||
setAppended(fileNum); | ||
gotoAppended(subfile); | ||
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handleFile(); | ||
} | ||
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void FileManager::loadFile(const Common::String &filename) { | ||
// Open up the file | ||
_fileNumber = -1; | ||
_file.close(); | ||
if (_file.open(filename)) | ||
error("Could not open file - %s", filename.c_str()); | ||
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// Get a stream for the entire file | ||
delete _stream; | ||
_stream = _file.readStream(_file.size()); | ||
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handleFile(); | ||
} | ||
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void FileManager::handleFile() { | ||
char header[3]; | ||
_stream->read(&header[0], 3); | ||
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if (!strncmp(header, "BDE", 3)) | ||
// Decompress the resource | ||
decompressFile(); | ||
else | ||
// Not compressed, so move back to start of data | ||
_stream->seek(0); | ||
} | ||
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void FileManager::decompressFile() { | ||
// TODO | ||
} | ||
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void FileManager::setAppended(int fileNum) { | ||
if (_fileNumber != fileNum) { | ||
_fileNumber = fileNum; | ||
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_file.close(); | ||
if (!_file.open(_filenames[fileNum])) | ||
error("Could not open file %s", _filenames[fileNum]); | ||
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// Read in the file index | ||
_fileIndex.resize(50); | ||
for (int i = 0; i < 50; ++i) { | ||
_fileIndex[i]._offset = _file.readUint32LE(); | ||
_fileIndex[i]._nextOffset = _file.readUint32LE(); | ||
} | ||
} | ||
} | ||
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void FileManager::gotoAppended(int subfile) { | ||
uint32 offset = _fileIndex[subfile]._offset; | ||
uint32 size = _fileIndex[subfile]._nextOffset - offset; | ||
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_file.seek(offset); | ||
delete _stream; | ||
_stream = _file.readStream(size); | ||
} | ||
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} // End of namespace Access |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,76 @@ | ||
/* 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. | ||
* | ||
*/ | ||
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#ifndef ACCESS_FILES_H | ||
#define ACCESS_FILES_H | ||
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#include "common/scummsys.h" | ||
#include "common/file.h" | ||
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namespace Access { | ||
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class AccessEngine; | ||
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struct FileEntry { | ||
uint32 _offset; | ||
uint32 _nextOffset; | ||
}; | ||
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class FileManager { | ||
private: | ||
AccessEngine *_vm; | ||
const char * const *_filenames; | ||
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void handleFile(); | ||
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void decompressFile(); | ||
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public: | ||
int _fileNumber; | ||
Common::File _file; | ||
Common::SeekableReadStream *_stream; | ||
Common::Array<FileEntry> _fileIndex; | ||
uint32 _entryOffset; | ||
uint32 _nextOffset; | ||
public: | ||
FileManager(AccessEngine *vm); | ||
~FileManager(); | ||
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void loadFile(int fileNum, int subfile); | ||
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void loadFile(const Common::String &filename); | ||
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/** | ||
* Open up a sub-file container file | ||
*/ | ||
void setAppended(int fileNum); | ||
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/** | ||
* Open up a sub-file resource within an alrady opened container file. | ||
*/ | ||
void gotoAppended(int subfile); | ||
}; | ||
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} // End of namespace Access | ||
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#endif /* ACCESS_FILES_H */ |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,29 @@ | ||
/* 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. | ||
* | ||
*/ | ||
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#include "access/sound.h" | ||
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namespace Access { | ||
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SoundManager::SoundManager(AccessEngine *vm) : _vm(vm) {} | ||
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} // End of namespace Access |
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