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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/memstream.h"
#include "ultima/ultima8/misc/debugger.h"
#include "ultima/ultima8/filesys/raw_archive.h"
namespace Ultima {
namespace Ultima8 {
RawArchive::~RawArchive() {
Archive::uncache();
}
void RawArchive::cache(uint32 index) {
if (index >= _count) return;
if (_objects.empty()) _objects.resize(_count);
if (_objects[index]) return;
_objects[index] = getRawObject(index);
}
void RawArchive::uncache(uint32 index) {
if (index >= _count) return;
if (_objects.empty()) return;
if (_objects[index]) {
delete[] _objects[index];
_objects[index] = nullptr;
}
}
bool RawArchive::isCached(uint32 index) const {
if (index >= _count) return false;
if (_objects.empty()) return false;
return (_objects[index] != nullptr);
}
const uint8 *RawArchive::get_object_nodel(uint32 index) {
if (index >= _count)
return nullptr;
cache(index);
return _objects[index];
}
uint8 *RawArchive::get_object(uint32 index) {
if (index >= _count)
return nullptr;
if (index < _objects.size() && _objects[index]) {
// already cached
uint32 size = getRawSize(index);
if (size == 0)
return nullptr;
uint8 *object = new uint8[size];
memcpy(object, _objects[index], size);
return object;
}
return getRawObject(index);
}
uint32 RawArchive::get_size(uint32 index) const {
if (index >= _count)
return 0;
return getRawSize(index);
}
Common::SeekableReadStream *RawArchive::get_datasource(uint32 index) {
if (index >= _count)
return nullptr;
cache(index);
if (!_objects[index])
return nullptr;
return new Common::MemoryReadStream(_objects[index], getRawSize(index));
}
} // End of namespace Ultima8
} // End of namespace Ultima
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