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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.
*
*/
#ifndef PRINCE_RESOURCE_H
#define PRINCE_RESOURCE_H
#include "common/stream.h"
#include "common/memstream.h"
#include "common/archive.h"
#include "common/debug-channels.h"
#include "common/ptr.h"
#include "prince/decompress.h"
namespace Prince {
namespace Resource {
static Common::SeekableReadStream *getDecompressedStream(Common::SeekableReadStream *stream);
template <typename T>
bool loadFromStream(T &resource, Common::SeekableReadStream &stream) {
return resource.loadStream(stream);
}
template<typename T>
bool loadResource(T *resource, const char *resourceName, bool required) {
Common::SeekableReadStream *stream_(SearchMan.createReadStreamForMember(resourceName));
if (!stream_) {
if (required)
error("Can't load %s", resourceName);
return false;
}
Common::ScopedPtr<Common::SeekableReadStream> stream(getDecompressedStream(stream_));
return loadFromStream(*resource, *stream);
}
template <typename T>
bool loadResource(Common::Array<T> &array, Common::SeekableReadStream &stream, bool required = true) {
T t;
while (t.loadFromStream(stream))
array.push_back(t);
return true;
}
template <typename T>
bool loadResource(Common::Array<T> &array, const char *resourceName, bool required = true) {
Common::SeekableReadStream *stream_(SearchMan.createReadStreamForMember(resourceName));
if (!stream_) {
if (required)
error("Can't load %s", resourceName);
return false;
}
Common::ScopedPtr<Common::SeekableReadStream> stream(getDecompressedStream(stream_));
return loadResource(array, *stream, required);
}
template <typename T>
bool loadResource(Common::Array<T *> &array, const char *resourceName, bool required = true) {
Common::SeekableReadStream *stream_(SearchMan.createReadStreamForMember(resourceName));
if (!stream_) {
if (required)
error("Can't load %s", resourceName);
return false;
}
Common::ScopedPtr<Common::SeekableReadStream> stream(getDecompressedStream(stream_));
// FIXME: This is stupid. Maybe loadFromStream should be helper method that returns initialized object
while (true) {
T* t = new T();
if (!t->loadFromStream(*stream)) {
delete t;
break;
}
array.push_back(t);
}
return true;
}
static Common::SeekableReadStream *getDecompressedStream(Common::SeekableReadStream *stream) {
byte header[4];
stream->read(header, 4);
stream->seek(0);
if (READ_BE_UINT32(header) == MKTAG('M', 'A', 'S', 'M')) {
byte *buffer = (byte *)malloc(stream->size());
stream->read(buffer, stream->size());
Decompressor dec;
uint32 decompLen = READ_BE_UINT32(buffer + 14);
byte *decompData = (byte *)malloc(decompLen);
dec.decompress(buffer + 18, decompData, decompLen);
free(buffer);
return new Common::MemoryReadStream(decompData, decompLen, DisposeAfterUse::YES);
} else {
return stream;
}
}
}
} // End of namespace Prince
#endif
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