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106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/* 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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* 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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* 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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* $URL$
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* $Id$
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*
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*/
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#ifndef PARALLACTION_IFF_H
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#define PARALLACTION_IFF_H
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#include "common/stream.h"
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#include "common/iff_container.h" // for IFF chunk names
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#include "graphics/iff.h" // for BMHD
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// this IFF parser code is courtesy of the Kyra engine team ;)
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namespace Parallaction {
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class IFFParser {
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public:
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IFFParser() : _stream(0), _startOffset(0), _endOffset(0) {}
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IFFParser(Common::SeekableReadStream *stream) : _stream(0), _startOffset(0), _endOffset(0) {
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setInputStream(stream);
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}
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~IFFParser() { destroy(); }
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void setInputStream(Common::SeekableReadStream *stream);
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operator bool() const { return (_startOffset != _endOffset) && _stream; }
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uint32 getFORMSize() const;
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Common::IFF_ID getFORMType() const;
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uint32 getIFFBlockSize(Common::IFF_ID chunk);
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bool loadIFFBlock(Common::IFF_ID chunk, void *loadTo, uint32 ptrSize);
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Common::SeekableReadStream *getIFFBlockStream(Common::IFF_ID chunkName);
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private:
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void destroy();
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uint32 moveToIFFBlock(Common::IFF_ID chunkName);
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Common::SeekableReadStream *_stream;
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uint32 _startOffset;
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uint32 _endOffset;
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uint32 _formSize;
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Common::IFF_ID _formType;
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};
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class ILBMDecoder {
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Common::SeekableReadStream *_in;
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bool _disposeStream;
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void planarToChunky(byte *out, uint32 width, byte *in, uint32 planeWidth, uint32 nPlanes, bool packPlanes);
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protected:
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IFFParser _parser;
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Graphics::BMHD _header;
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bool _hasHeader;
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uint32 _bodySize;
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uint32 _paletteSize;
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public:
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ILBMDecoder(Common::SeekableReadStream *input, bool disposeStream = false);
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virtual ~ILBMDecoder();
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uint32 getWidth();
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uint32 getHeight();
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uint32 getNumColors();
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byte *getPalette();
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byte *getBitmap(uint32 numPlanes, bool packPlanes);
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byte *getBitmap() {
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assert(_hasHeader);
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return getBitmap(_header.depth, false);
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}
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};
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}
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#endif
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