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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.
*
* $URL$
* $Id$
*
*/
#include "toon/resource.h"
#include "common/file.h"
#include "toon/toon.h"
namespace Toon {
void Resources::openPackage(Common::String fileName, bool preloadEntirePackage) {
debugC(1, kDebugResource, "openPackage(%s, %d)", fileName.c_str(), (preloadEntirePackage) ? 1 : 0);
Common::File file;
bool opened = file.open(fileName);
if (!opened)
return;
PakFile *pakFile = new PakFile();
pakFile->open(&file, fileName, preloadEntirePackage);
if (preloadEntirePackage)
file.close();
_pakFiles.push_back(pakFile);
}
void Resources::closePackage(Common::String fileName) {
for (uint32 i = 0; i < _pakFiles.size(); i++) {
if (_pakFiles[i]->getPackName() == fileName) {
delete _pakFiles[i];
_pakFiles.remove_at(i);
return;
}
}
}
Resources::Resources(ToonEngine *vm) : _vm(vm) {
}
uint8 *Resources::getFileData(Common::String fileName, uint32 *fileSize) {
debugC(4, kDebugResource, "getFileData(%s, fileSize)", fileName.c_str());
// first try to find files outside of .pak
// some patched files have not been included in package.
if (Common::File::exists(fileName)) {
Common::File file;
bool opened = file.open(fileName);
if (!opened)
return 0;
*fileSize = file.size();
uint8 *memory = (uint8 *)new uint8[*fileSize];
file.read(memory, *fileSize);
file.close();
return memory;
} else {
for (uint32 i = 0; i < _pakFiles.size(); i++) {
uint32 locFileSize = 0;
uint8 *locFileData = 0;
locFileData = _pakFiles[i]->getFileData(fileName, &locFileSize);
if (locFileData) {
*fileSize = locFileSize;
return locFileData;
}
}
return 0;
}
}
Common::SeekableReadStream *Resources::openFile(Common::String fileName) {
debugC(1, kDebugResource, "openFile(%s)", fileName.c_str());
// first try to find files outside of .pak
// some patched files have not been included in package.
if (Common::File::exists(fileName)) {
Common::File *file = new Common::File();
bool opened = file->open(fileName);
if (!opened) {
delete file;
return 0;
}
return file;
} else {
for (uint32 i = 0; i < _pakFiles.size(); i++) {
Common::SeekableReadStream *stream = 0;
stream = _pakFiles[i]->createReadStream(fileName);
if (stream)
return stream;
}
return 0;
}
}
Common::SeekableReadStream *PakFile::createReadStream(Common::String fileName) {
debugC(1, kDebugResource, "createReadStream(%s)", fileName.c_str());
int32 offset = 0;
int32 size = 0;
for (uint32 i = 0; i < _numFiles; i++) {
if (fileName.compareToIgnoreCase(_files[i]._name) == 0) {
size = _files[i]._size;
offset = _files[i]._offset;
break;
}
}
if (!size)
return 0;
if (_fileHandle)
return new Common::SeekableSubReadStream(_fileHandle, offset, offset + size);
else
return new Common::MemoryReadStream(_buffer + offset, size);
}
uint8 *PakFile::getFileData(Common::String fileName, uint32 *fileSize) {
debugC(4, kDebugResource, "getFileData(%s, fileSize)", fileName.c_str());
for (uint32 i = 0; i < _numFiles; i++) {
if (fileName.compareToIgnoreCase(_files[i]._name) == 0) {
*fileSize = _files[i]._size;
return _buffer + _files[i]._offset;
}
}
return 0;
}
void PakFile::open(Common::SeekableReadStream *rs, Common::String packName, bool preloadEntirePackage) {
debugC(1, kDebugResource, "open(rs, %d)", (preloadEntirePackage) ? 1 : 0);
char buffer[64];
int32 currentPos = 0;
_numFiles = 0;
_packName = packName;
while (1) {
rs->seek(currentPos);
rs->read(buffer, 64);
int32 offset = READ_LE_UINT32(buffer);
char *name = buffer + 4;
if (!*name)
break;
int32 nameSize = strlen(name) + 1;
int32 nextOffset = READ_LE_UINT32(buffer + 4 + nameSize);
currentPos += 4 + nameSize;
PakFile::File newFile;
strcpy(newFile._name, name);
newFile._offset = offset;
newFile._size = nextOffset - offset;
_numFiles++;
_files.push_back(newFile);
}
if (preloadEntirePackage) {
_bufferSize = rs->size();
_buffer = new uint8[_bufferSize];
rs->seek(0);
rs->read(_buffer, _bufferSize);
}
}
void PakFile::close() {
if (_buffer) {
delete[] _buffer;
}
if (_fileHandle) {
_fileHandle->close();
delete _fileHandle;
}
}
PakFile::~PakFile() {
close();
}
PakFile::PakFile() {
_fileHandle = 0;
_buffer = 0;
_bufferSize = 0;
}
} // End of namespace Toon
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