mirror of
https://github.com/libretro/scummvm.git
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83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/stream.h"
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#include "common/debug.h"
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#include "common/textconsole.h"
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#include "chewy/chewy.h"
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#include "chewy/resource.h"
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namespace Chewy {
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Resource::Resource(Common::String filename) {
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_stream.open(filename);
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uint32 magicBytes = MKTAG('N', 'G', 'S', '\0');
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if (_stream.readUint32BE() != magicBytes)
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error("Invalid resource - %s", filename.c_str());
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_stream.skip(2); // type
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_chunkCount = _stream.readUint16LE();
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uint32 tbfID = MKTAG('T', 'B', 'F', '\0');
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for (uint i = 0; i < _chunkCount; i++) {
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TBFChunk cur;
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cur.packedSize = _stream.readUint32LE();
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cur.type = _stream.readUint16LE();
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cur.pos = _stream.pos();
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if (_stream.readUint32BE() != tbfID)
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error("Corrupt resource %s", filename.c_str());
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cur.screenMode = _stream.readUint16LE();
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cur.compressionFlag = _stream.readUint16LE();
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cur.unpackedSize = _stream.readUint32LE();
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cur.width = _stream.readUint16LE();
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cur.height = _stream.readUint16LE();
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_stream.read(cur.palette, 3 * 256);
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_stream.skip(cur.packedSize - TBF_CHUNK_HEADER_SIZE);
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_tbfChunkList.push_back(cur);
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/*debug("Chunk %d: packed %d, type %d, pos %d, mode %d, comp %d, unpacked %d, width %d, height %d",
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i, cur.packedSize, cur.type, cur.pos, cur.screenMode, cur.compressionFlag, cur.unpackedSize,
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cur.width, cur.height
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);*/
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}
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}
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Resource::~Resource() {
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_tbfChunkList.clear();
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_stream.close();
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}
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TBFChunk *Resource::getChunk(int num) {
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return &_tbfChunkList[num];
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}
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Common::SeekableReadStream *Resource::getChunkData(int num) {
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// TODO
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return nullptr;
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}
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} // End of namespace Chewy
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