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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.
*
*/
#include "common/stream.h"
#include "common/debug.h"
#include "common/textconsole.h"
#include "chewy/chewy.h"
#include "chewy/resource.h"
namespace Chewy {
Resource::Resource(Common::String filename) {
_stream.open(filename);
uint32 magicBytes = MKTAG('N', 'G', 'S', '\0');
if (_stream.readUint32BE() != magicBytes)
error("Invalid resource - %s", filename.c_str());
_stream.skip(2); // type
_chunkCount = _stream.readUint16LE();
uint32 tbfID = MKTAG('T', 'B', 'F', '\0');
for (uint i = 0; i < _chunkCount; i++) {
TBFChunk cur;
cur.packedSize = _stream.readUint32LE();
cur.type = _stream.readUint16LE();
cur.pos = _stream.pos();
if (_stream.readUint32BE() != tbfID)
error("Corrupt resource %s", filename.c_str());
cur.screenMode = _stream.readUint16LE();
cur.compressionFlag = _stream.readUint16LE();
cur.unpackedSize = _stream.readUint32LE();
cur.width = _stream.readUint16LE();
cur.height = _stream.readUint16LE();
_stream.read(cur.palette, 3 * 256);
_stream.skip(cur.packedSize - TBF_CHUNK_HEADER_SIZE);
_tbfChunkList.push_back(cur);
/*debug("Chunk %d: packed %d, type %d, pos %d, mode %d, comp %d, unpacked %d, width %d, height %d",
i, cur.packedSize, cur.type, cur.pos, cur.screenMode, cur.compressionFlag, cur.unpackedSize,
cur.width, cur.height
);*/
}
}
Resource::~Resource() {
_tbfChunkList.clear();
_stream.close();
}
TBFChunk *Resource::getChunk(int num) {
return &_tbfChunkList[num];
}
Common::SeekableReadStream *Resource::getChunkData(int num) {
// TODO
return nullptr;
}
} // End of namespace Chewy
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