diff options
Diffstat (limited to 'engines/parallaction/iff.h')
| -rw-r--r-- | engines/parallaction/iff.h | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/engines/parallaction/iff.h b/engines/parallaction/iff.h deleted file mode 100644 index 98e36e1b00..0000000000 --- a/engines/parallaction/iff.h +++ /dev/null @@ -1,206 +0,0 @@ -/* 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. - * - * $URL$ - * $Id$ - * - */ - -#ifndef PARALLACTION_IFF_H -#define PARALLACTION_IFF_H - -#include "common/stream.h" -#include "common/func.h" -#include "common/iff_container.h" // for IFF chunk names -#include "graphics/iff.h" // for BMHD - - -namespace Parallaction { - -/** - * Represents a IFF chunk available to client code. - * - * Client code must *not* deallocate _stream when done. - */ -struct IFFChunk { - Common::IFF_ID _type; - uint32 _size; - Common::ReadStream *_stream; - - IFFChunk(Common::IFF_ID type, uint32 size, Common::ReadStream *stream) : _type(type), _size(size), _stream(stream) { - assert(_stream); - } -}; - -/** - * Parser for IFF containers. - */ -class IFFParser { - - /** - * This private class implements IFF chunk navigation. - */ - class IFFChunkNav : public Common::ReadStream { - protected: - Common::ReadStream *_input; - uint32 _bytesRead; - public: - Common::IFF_ID id; - uint32 size; - - IFFChunkNav() : _input(0) { - } - void setInputStream(Common::ReadStream *input) { - _input = input; - size = _bytesRead = 0; - } - void incBytesRead(uint32 inc) { - _bytesRead += inc; - if (_bytesRead > size) { - error("Chunk overread"); - } - } - void readHeader() { - id = _input->readUint32BE(); - size = _input->readUint32BE(); - _bytesRead = 0; - } - bool hasReadAll() const { - return (size - _bytesRead) == 0; - } - void feed() { - if (size % 2) { - size++; - } - while (!hasReadAll()) { - readByte(); - } - } - // Common::ReadStream implementation - bool eos() const { return _input->eos(); } - bool err() const { return _input->err(); } - void clearErr() { _input->clearErr(); } - - uint32 read(void *dataPtr, uint32 dataSize) { - incBytesRead(dataSize); - return _input->read(dataPtr, dataSize); - } - }; - - IFFChunkNav _formChunk; //!< The root chunk of the file. - IFFChunkNav _chunk; //!< The current chunk. - - Common::ReadStream *_stream; - bool _disposeStream; - - void setInputStream(Common::ReadStream *stream); - -public: - IFFParser(Common::ReadStream *stream, bool disposeStream = false) : _stream(stream), _disposeStream(stream) { - setInputStream(stream); - } - ~IFFParser() { - if (_disposeStream) { - delete _stream; - } - _stream = 0; - } - - /** - * Returns the IFF FORM type. - * @return the IFF FORM type of the stream, or 0 if FORM header is not found. - */ - Common::IFF_ID getFORMType() const; - - /** - * Returns the size of the data. - * @return the size of the data in file, or -1 if FORM header is not found. - */ - uint32 getFORMSize() const; - - /** - * Callback type for the parser. - */ - typedef Common::Functor1< IFFChunk&, bool > IFFCallback; - - /** - * Parse the IFF container, invoking the callback on each chunk encountered. - * The callback can interrupt the parsing by returning 'true'. - */ - void parse(IFFCallback &callback); - -private: - uint32 _formSize; - Common::IFF_ID _formType; -}; - - - - -struct ILBMDecoder { - /** - * ILBM header data, necessary for loadBitmap() - */ - Graphics::BMHD _header; - - /** - * Available decoding modes for loadBitmap(). - */ - enum { - ILBM_UNPACK_PLANES = 0xFF, //!< Decode all bitplanes, and map 1 pixel to 1 byte. - ILBM_PACK_PLANES = 0x100, //!< Request unpacking, used as a mask with below options. - - ILBM_1_PLANES = 1, //!< Decode only the first bitplane, don't pack. - ILBM_1_PACK_PLANES = ILBM_1_PLANES | ILBM_PACK_PLANES, //!< Decode only the first bitplane, pack 8 pixels in 1 byte. - ILBM_2_PLANES = 2, //!< Decode first 2 bitplanes, don't pack. - ILBM_2_PACK_PLANES = ILBM_2_PLANES | ILBM_PACK_PLANES, //!< Decode first 2 bitplanes, pack 4 pixels in 1 byte. - ILBM_3_PLANES = 3, //!< Decode first 3 bitplanes, don't pack. - ILBM_4_PLANES = 4, //!< Decode first 4 bitplanes, don't pack. - ILBM_4_PACK_PLANES = ILBM_4_PLANES | ILBM_PACK_PLANES, //!< Decode first 4 bitplanes, pack 2 pixels in 1 byte. - ILBM_5_PLANES = 5, //!< Decode first 5 bitplanes, don't pack. - ILBM_8_PLANES = 8 //!< Decode all 8 bitplanes. - }; - - /** - * Fills the _header member from the given stream. - */ - void loadHeader(Common::ReadStream *stream); - - /** - * Loads and unpacks the ILBM bitmap data from the stream into the buffer. - * The functions assumes the buffer is large enough to contain all data. - * The caller controls how data should be packed by choosing mode from - * the enum above. - */ - void loadBitmap(uint32 mode, byte *buffer, Common::ReadStream *stream); - - /** - * Converts from bitplanar to chunky representation. Intended for internal - * usage, but you can be (ab)use it from client code if you know what you - * are doing. - */ - void planarToChunky(byte *out, uint32 width, byte *in, uint32 planeWidth, uint32 nPlanes, bool packPlanes); -}; - - -} - -#endif - |