trunk/src/RIFF.h

/***************************************************************************
 *                                                                         *
 *   libgig - C++ cross-platform Gigasampler format file access library    *
 *                                                                         *
 *   Copyright (C) 2003-2007 by Christian Schoenebeck                      *
 *                              <cuse@users.sourceforge.net>               *
 *                                                                         *
 *   This library 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 library 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 library; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __RIFF_H__
#define __RIFF_H__

#ifdef WIN32
# define POSIX 0
#endif

#ifndef POSIX
# define POSIX 1
#endif

#ifndef DEBUG
# define DEBUG 0
#endif

#include <string>
#include <list>
#include <map>
#include <iostream>

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#if POSIX
# include <sys/types.h>
# include <sys/stat.h>
# include <fcntl.h>
# include <unistd.h>
#endif // POSIX

#include <stdint.h>

#ifdef WIN32
# include "../win32/libgig_private.h" // like config.h, automatically generated by Dev-C++
# include <windows.h>
  typedef unsigned int   uint;
  typedef unsigned char  uint8_t;
  typedef unsigned short uint16_t;
  typedef unsigned int   uint32_t;
# define PACKAGE "libgig"
# define VERSION VER_STRING // VER_STRING defined in libgig_private.h
#endif // WIN32

#include <stdio.h>

#if WORDS_BIGENDIAN
# define CHUNK_ID_RIFF  0x52494646
# define CHUNK_ID_RIFX  0x52494658
# define CHUNK_ID_LIST  0x4C495354
#else  // little endian
# define CHUNK_ID_RIFF  0x46464952
# define CHUNK_ID_RIFX  0x58464952
# define CHUNK_ID_LIST  0x5453494C
#endif // WORDS_BIGENDIAN

#define CHUNK_HEADER_SIZE       8
#define LIST_HEADER_SIZE        12
#define RIFF_HEADER_SIZE        12


/** RIFF specific classes and definitions */
namespace RIFF {

    /* just symbol prototyping */
    class Chunk;
    class List;
    class File;

    typedef std::string String;

    /** Whether file stream is open in read or in read/write mode. */
    typedef enum {
        stream_mode_read       = 0,
        stream_mode_read_write = 1,
        stream_mode_closed     = 2
    } stream_mode_t;

    /** Current state of the file stream. */
    typedef enum {
        stream_ready       = 0,
        stream_end_reached = 1,
        stream_closed      = 2
    } stream_state_t;

    /** File stream position dependent to these relations. */
    typedef enum {
        stream_start    = 0,
        stream_curpos   = 1,
        stream_backward = 2,
        stream_end      = 3
    } stream_whence_t;

    typedef enum {
        endian_little = 0,
        endian_big    = 1,
        endian_native = 2
    } endian_t;

    /** Provides convenient methods to access data of RIFF chunks in general. */
    class Chunk {
        public:
            Chunk(File* pFile, unsigned long StartPos, List* Parent);
            String         GetChunkIDString();
            uint32_t       GetChunkID() { return ChunkID; };            ///< Chunk ID in unsigned integer representation.
            List*          GetParent()  { return pParent; };            ///< Returns pointer to the chunk's parent list chunk.
            unsigned long  GetSize()    { return CurrentChunkSize; };   ///< Chunk size in bytes (without header, thus the chunk data body)
            unsigned long  GetNewSize() { return NewChunkSize;     };   ///< New chunk size if it was modified with Resize().
            unsigned long  GetPos()     { return ulPos; };              ///< Position within the chunk data body
            unsigned long  GetFilePos() { return ulStartPos + ulPos; }; ///< Current, actual offset in file.
            unsigned long  SetPos(unsigned long Where, stream_whence_t Whence = stream_start);
            unsigned long  RemainingBytes();
            stream_state_t GetState();
            unsigned long  Read(void* pData, unsigned long WordCount, unsigned long WordSize);
            unsigned long  ReadInt8(int8_t* pData,     unsigned long WordCount = 1);
            unsigned long  ReadUint8(uint8_t* pData,   unsigned long WordCount = 1);
            unsigned long  ReadInt16(int16_t* pData,   unsigned long WordCount = 1);
            unsigned long  ReadUint16(uint16_t* pData, unsigned long WordCount = 1);
            unsigned long  ReadInt32(int32_t* pData,   unsigned long WordCount = 1);
            unsigned long  ReadUint32(uint32_t* pData, unsigned long WordCount = 1);
            int8_t         ReadInt8();
            uint8_t        ReadUint8();
            int16_t        ReadInt16();
            uint16_t       ReadUint16();
            int32_t        ReadInt32();
            uint32_t       ReadUint32();
            unsigned long  Write(void* pData, unsigned long WordCount, unsigned long WordSize);
            unsigned long  WriteInt8(int8_t* pData,     unsigned long WordCount = 1);
            unsigned long  WriteUint8(uint8_t* pData,   unsigned long WordCount = 1);
            unsigned long  WriteInt16(int16_t* pData,   unsigned long WordCount = 1);
            unsigned long  WriteUint16(uint16_t* pData, unsigned long WordCount = 1);
            unsigned long  WriteInt32(int32_t* pData,   unsigned long WordCount = 1);
            unsigned long  WriteUint32(uint32_t* pData, unsigned long WordCount = 1);
            void*          LoadChunkData();
            void           ReleaseChunkData();
            void           Resize(int iNewSize);
            virtual ~Chunk();
        protected:
            uint32_t      ChunkID;
            uint32_t      CurrentChunkSize;             /* in bytes */
            uint32_t      NewChunkSize;                 /* in bytes (if chunk was scheduled to be resized) */
            List*         pParent;
            File*         pFile;
            unsigned long ulStartPos;           /* actual position in file where chunk (without header) starts */
            unsigned long ulPos;                /* # of bytes from ulStartPos */
            uint8_t*      pChunkData;
            unsigned long ulChunkDataSize;

            Chunk(File* pFile);
            Chunk(File* pFile, List* pParent, uint32_t uiChunkID, uint uiBodySize);
            void          ReadHeader(unsigned long fPos);
            void          WriteHeader(unsigned long fPos);
            unsigned long ReadSceptical(void* pData, unsigned long WordCount, unsigned long WordSize);
            inline void   swapBytes_16(void* Word) {
                uint8_t byteCache = *((uint8_t*) Word);
                *((uint8_t*) Word)     = *((uint8_t*) Word + 1);
                *((uint8_t*) Word + 1) = byteCache;
            }
            inline void   swapBytes_32(void* Word) {
                uint8_t byteCache = *((uint8_t*) Word);
                *((uint8_t*) Word)     = *((uint8_t*) Word + 3);
                *((uint8_t*) Word + 3) = byteCache;
                byteCache = *((uint8_t*) Word + 1);
                *((uint8_t*) Word + 1) = *((uint8_t*) Word + 2);
                *((uint8_t*) Word + 2) = byteCache;
            }
            inline void   swapBytes(void* Word, unsigned long WordSize) {
                uint8_t byteCache;
                unsigned long lo = 0, hi = WordSize - 1;
                for (; lo < hi; hi--, lo++) {
                    byteCache = *((uint8_t*) Word + lo);
                    *((uint8_t*) Word + lo) = *((uint8_t*) Word + hi);
                    *((uint8_t*) Word + hi) = byteCache;
                }
            }
            inline String convertToString(uint32_t word) {
                String result;
                for (int i = 0; i < 4; i++) {
                    uint8_t byte = *((uint8_t*)(&word) + i);
                    char c = byte;
                    result += c;
                }
                return result;
            }
            virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);
            virtual void __resetPos(); ///< Sets Chunk's read/write position to zero.

            friend class List;
    };

    /** Provides convenient methods to access data of RIFF list chunks and their subchunks. */
    class List : public Chunk {
        public:
            List(File* pFile, unsigned long StartPos, List* Parent);
            String       GetListTypeString();
            uint32_t     GetListType() { return ListType; }   ///< Returns unsigned integer representation of the list's ID
            Chunk*       GetSubChunk(uint32_t ChunkID);
            List*        GetSubList(uint32_t ListType);
            Chunk*       GetFirstSubChunk();
            Chunk*       GetNextSubChunk();
            List*        GetFirstSubList();
            List*        GetNextSubList();
            unsigned int CountSubChunks();
            unsigned int CountSubChunks(uint32_t ChunkID);
            unsigned int CountSubLists();
            unsigned int CountSubLists(uint32_t ListType);
            Chunk*       AddSubChunk(uint32_t uiChunkID, uint uiBodySize);
            List*        AddSubList(uint32_t uiListType);
            void         DeleteSubChunk(Chunk* pSubChunk);
            void         MoveSubChunk(Chunk* pSrc, Chunk* pDst);
            virtual ~List();
        protected:
            typedef std::map<uint32_t, RIFF::Chunk*>  ChunkMap;
            typedef std::list<Chunk*>                 ChunkList;

            uint32_t   ListType;
            ChunkList* pSubChunks;
            ChunkMap*  pSubChunksMap;
            ChunkList::iterator ChunksIterator;
            ChunkList::iterator ListIterator;

            List(File* pFile);
            List(File* pFile, List* pParent, uint32_t uiListID);
            void ReadHeader(unsigned long fPos);
            void WriteHeader(unsigned long fPos);
            void LoadSubChunks();
            void LoadSubChunksRecursively();
            virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);
            virtual void __resetPos(); ///< Sets List Chunk's read/write position to zero and causes all sub chunks to do the same.
    };

    /** Parses arbitrary RIFF files and provides together with it's base classes convenient methods to walk through the RIFF tree. */
    class File : public List {
        public:
            File(uint32_t FileType);
            File(const String& path);
            stream_mode_t GetMode();
            bool          SetMode(stream_mode_t NewMode);
            void SetByteOrder(endian_t Endian);
            String GetFileName();
            virtual void Save();
            virtual void Save(const String& path);
            virtual ~File();
        protected:
            #if POSIX
            int    hFileRead;  ///< handle / descriptor for reading from file
            int    hFileWrite; ///< handle / descriptor for writing to (some) file
            #elif defined(WIN32)
            HANDLE hFileRead;  ///< handle / descriptor for reading from file
            HANDLE hFileWrite; ///< handle / descriptor for writing to (some) file
            #else
            FILE*  hFileRead;  ///< handle / descriptor for reading from file
            FILE*  hFileWrite; ///< handle / descriptor for writing to (some) file
            #endif // POSIX
            String Filename;
            bool   bEndianNative;

            void LogAsResized(Chunk* pResizedChunk);
            void UnlogResized(Chunk* pResizedChunk);
            friend class Chunk;
            friend class List;
        private:
            stream_mode_t  Mode;
            ChunkList      ResizedChunks; ///< All chunks which have been resized (enlarged / shortened).

            unsigned long GetFileSize();
            void ResizeFile(unsigned long ulNewSize);
            #if POSIX
            unsigned long __GetFileSize(int hFile);
            #elif defined(WIN32)
            unsigned long __GetFileSize(HANDLE hFile);
            #else
            unsigned long __GetFileSize(FILE* hFile);
            #endif
    };

    /** Will be thrown whenever an error occurs while parsing a RIFF file. */
    class Exception {
        public:
            String Message;

            Exception(String Message) { Exception::Message = Message; };
            void PrintMessage();
            virtual ~Exception() {};
    };

    String libraryName();
    String libraryVersion();

} // namespace RIFF
#endif // __RIFF_H__
1	schoenebeck	2	/***************************************************************************
2			* *
3	schoenebeck	933	* libgig - C++ cross-platform Gigasampler format file access library *
4	schoenebeck	2	* *
5	schoenebeck	1050	* Copyright (C) 2003-2007 by Christian Schoenebeck *
6	schoenebeck	384	* <cuse@users.sourceforge.net> *
7	schoenebeck	2	* *
8			* This library is free software; you can redistribute it and/or modify *
9			* it under the terms of the GNU General Public License as published by *
10			* the Free Software Foundation; either version 2 of the License, or *
11			* (at your option) any later version. *
12			* *
13			* This library is distributed in the hope that it will be useful, *
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16			* GNU General Public License for more details. *
17			* *
18			* You should have received a copy of the GNU General Public License *
19			* along with this library; if not, write to the Free Software *
20			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21			* MA 02111-1307 USA *
22			***************************************************************************/
23
24			#ifndef __RIFF_H__
25			#define __RIFF_H__
26
27	schoenebeck	1050	#ifdef WIN32
28			# define POSIX 0
29			#endif
30	schoenebeck	2
31	schoenebeck	1050	#ifndef POSIX
32			# define POSIX 1
33			#endif
34
35			#ifndef DEBUG
36			# define DEBUG 0
37			#endif
38
39	schoenebeck	2	#include <string>
40			#include <list>
41			#include <map>
42			#include <iostream>
43
44	schoenebeck	11	#ifdef HAVE_CONFIG_H
45			# include <config.h>
46			#endif
47
48	schoenebeck	2	#if POSIX
49			# include <sys/types.h>
50			# include <sys/stat.h>
51			# include <fcntl.h>
52			# include <unistd.h>
53			#endif // POSIX
54
55			#include <stdint.h>
56
57	schoenebeck	1050	#ifdef WIN32
58			# include "../win32/libgig_private.h" // like config.h, automatically generated by Dev-C++
59			# include <windows.h>
60			typedef unsigned int uint;
61			typedef unsigned char uint8_t;
62			typedef unsigned short uint16_t;
63			typedef unsigned int uint32_t;
64			# define PACKAGE "libgig"
65			# define VERSION VER_STRING // VER_STRING defined in libgig_private.h
66			#endif // WIN32
67	schoenebeck	2
68			#include <stdio.h>
69
70			#if WORDS_BIGENDIAN
71			# define CHUNK_ID_RIFF 0x52494646
72			# define CHUNK_ID_RIFX 0x52494658
73			# define CHUNK_ID_LIST 0x4C495354
74			#else // little endian
75			# define CHUNK_ID_RIFF 0x46464952
76			# define CHUNK_ID_RIFX 0x58464952
77			# define CHUNK_ID_LIST 0x5453494C
78			#endif // WORDS_BIGENDIAN
79
80			#define CHUNK_HEADER_SIZE 8
81			#define LIST_HEADER_SIZE 12
82			#define RIFF_HEADER_SIZE 12
83
84
85			/** RIFF specific classes and definitions */
86			namespace RIFF {
87
88			/* just symbol prototyping */
89			class Chunk;
90			class List;
91	schoenebeck	780	class File;
92	schoenebeck	2
93			typedef std::string String;
94
95	schoenebeck	780	/** Whether file stream is open in read or in read/write mode. */
96			typedef enum {
97	schoenebeck	798	stream_mode_read = 0,
98			stream_mode_read_write = 1,
99			stream_mode_closed = 2
100	schoenebeck	780	} stream_mode_t;
101
102	schoenebeck	2	/** Current state of the file stream. */
103			typedef enum {
104			stream_ready = 0,
105			stream_end_reached = 1,
106			stream_closed = 2
107			} stream_state_t;
108
109			/** File stream position dependent to these relations. */
110			typedef enum {
111			stream_start = 0,
112			stream_curpos = 1,
113			stream_backward = 2,
114			stream_end = 3
115			} stream_whence_t;
116
117	persson	1183	typedef enum {
118			endian_little = 0,
119			endian_big = 1,
120			endian_native = 2
121			} endian_t;
122
123	schoenebeck	2	/** Provides convenient methods to access data of RIFF chunks in general. */
124			class Chunk {
125			public:
126	schoenebeck	780	Chunk(File* pFile, unsigned long StartPos, List* Parent);
127	schoenebeck	2	String GetChunkIDString();
128	schoenebeck	11	uint32_t GetChunkID() { return ChunkID; }; ///< Chunk ID in unsigned integer representation.
129			List* GetParent() { return pParent; }; ///< Returns pointer to the chunk's parent list chunk.
130	schoenebeck	780	unsigned long GetSize() { return CurrentChunkSize; }; ///< Chunk size in bytes (without header, thus the chunk data body)
131			unsigned long GetNewSize() { return NewChunkSize; }; ///< New chunk size if it was modified with Resize().
132	schoenebeck	11	unsigned long GetPos() { return ulPos; }; ///< Position within the chunk data body
133	schoenebeck	2	unsigned long GetFilePos() { return ulStartPos + ulPos; }; ///< Current, actual offset in file.
134			unsigned long SetPos(unsigned long Where, stream_whence_t Whence = stream_start);
135			unsigned long RemainingBytes();
136			stream_state_t GetState();
137			unsigned long Read(void* pData, unsigned long WordCount, unsigned long WordSize);
138			unsigned long ReadInt8(int8_t* pData, unsigned long WordCount = 1);
139			unsigned long ReadUint8(uint8_t* pData, unsigned long WordCount = 1);
140			unsigned long ReadInt16(int16_t* pData, unsigned long WordCount = 1);
141			unsigned long ReadUint16(uint16_t* pData, unsigned long WordCount = 1);
142			unsigned long ReadInt32(int32_t* pData, unsigned long WordCount = 1);
143			unsigned long ReadUint32(uint32_t* pData, unsigned long WordCount = 1);
144			int8_t ReadInt8();
145			uint8_t ReadUint8();
146			int16_t ReadInt16();
147			uint16_t ReadUint16();
148			int32_t ReadInt32();
149			uint32_t ReadUint32();
150	schoenebeck	780	unsigned long Write(void* pData, unsigned long WordCount, unsigned long WordSize);
151			unsigned long WriteInt8(int8_t* pData, unsigned long WordCount = 1);
152			unsigned long WriteUint8(uint8_t* pData, unsigned long WordCount = 1);
153			unsigned long WriteInt16(int16_t* pData, unsigned long WordCount = 1);
154			unsigned long WriteUint16(uint16_t* pData, unsigned long WordCount = 1);
155			unsigned long WriteInt32(int32_t* pData, unsigned long WordCount = 1);
156			unsigned long WriteUint32(uint32_t* pData, unsigned long WordCount = 1);
157			void* LoadChunkData();
158			void ReleaseChunkData();
159			void Resize(int iNewSize);
160	schoenebeck	384	virtual ~Chunk();
161	schoenebeck	2	protected:
162			uint32_t ChunkID;
163	schoenebeck	780	uint32_t CurrentChunkSize; /* in bytes */
164			uint32_t NewChunkSize; /* in bytes (if chunk was scheduled to be resized) */
165	schoenebeck	2	List* pParent;
166	schoenebeck	780	File* pFile;
167	schoenebeck	2	unsigned long ulStartPos; /* actual position in file where chunk (without header) starts */
168			unsigned long ulPos; /* # of bytes from ulStartPos */
169			uint8_t* pChunkData;
170	schoenebeck	800	unsigned long ulChunkDataSize;
171	schoenebeck	2
172	schoenebeck	780	Chunk(File* pFile);
173			Chunk(File* pFile, List* pParent, uint32_t uiChunkID, uint uiBodySize);
174	schoenebeck	2	void ReadHeader(unsigned long fPos);
175	schoenebeck	780	void WriteHeader(unsigned long fPos);
176	schoenebeck	2	unsigned long ReadSceptical(void* pData, unsigned long WordCount, unsigned long WordSize);
177			inline void swapBytes_16(void* Word) {
178			uint8_t byteCache = ((uint8_t) Word);
179			((uint8_t) Word) = ((uint8_t) Word + 1);
180			((uint8_t) Word + 1) = byteCache;
181			}
182			inline void swapBytes_32(void* Word) {
183			uint8_t byteCache = ((uint8_t) Word);
184			((uint8_t) Word) = ((uint8_t) Word + 3);
185			((uint8_t) Word + 3) = byteCache;
186			byteCache = ((uint8_t) Word + 1);
187			((uint8_t) Word + 1) = ((uint8_t) Word + 2);
188			((uint8_t) Word + 2) = byteCache;
189			}
190			inline void swapBytes(void* Word, unsigned long WordSize) {
191			uint8_t byteCache;
192			unsigned long lo = 0, hi = WordSize - 1;
193			for (; lo < hi; hi--, lo++) {
194			byteCache = ((uint8_t) Word + lo);
195			((uint8_t) Word + lo) = ((uint8_t) Word + hi);
196			((uint8_t) Word + hi) = byteCache;
197			}
198			}
199			inline String convertToString(uint32_t word) {
200			String result;
201			for (int i = 0; i < 4; i++) {
202			uint8_t byte = ((uint8_t)(&word) + i);
203			char c = byte;
204			result += c;
205			}
206			return result;
207			}
208	schoenebeck	780	virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);
209			virtual void __resetPos(); ///< Sets Chunk's read/write position to zero.
210
211			friend class List;
212	schoenebeck	2	};
213
214			/** Provides convenient methods to access data of RIFF list chunks and their subchunks. */
215			class List : public Chunk {
216			public:
217	schoenebeck	780	List(File* pFile, unsigned long StartPos, List* Parent);
218	schoenebeck	2	String GetListTypeString();
219	schoenebeck	11	uint32_t GetListType() { return ListType; } ///< Returns unsigned integer representation of the list's ID
220			Chunk* GetSubChunk(uint32_t ChunkID);
221			List* GetSubList(uint32_t ListType);
222	schoenebeck	2	Chunk* GetFirstSubChunk();
223			Chunk* GetNextSubChunk();
224			List* GetFirstSubList();
225			List* GetNextSubList();
226			unsigned int CountSubChunks();
227			unsigned int CountSubChunks(uint32_t ChunkID);
228			unsigned int CountSubLists();
229			unsigned int CountSubLists(uint32_t ListType);
230	schoenebeck	780	Chunk* AddSubChunk(uint32_t uiChunkID, uint uiBodySize);
231			List* AddSubList(uint32_t uiListType);
232			void DeleteSubChunk(Chunk* pSubChunk);
233	persson	1102	void MoveSubChunk(Chunk* pSrc, Chunk* pDst);
234	schoenebeck	384	virtual ~List();
235	schoenebeck	2	protected:
236			typedef std::map<uint32_t, RIFF::Chunk*> ChunkMap;
237			typedef std::list<Chunk*> ChunkList;
238
239			uint32_t ListType;
240			ChunkList* pSubChunks;
241			ChunkMap* pSubChunksMap;
242			ChunkList::iterator ChunksIterator;
243			ChunkList::iterator ListIterator;
244
245	schoenebeck	780	List(File* pFile);
246			List(File* pFile, List* pParent, uint32_t uiListID);
247	schoenebeck	2	void ReadHeader(unsigned long fPos);
248	schoenebeck	780	void WriteHeader(unsigned long fPos);
249	schoenebeck	2	void LoadSubChunks();
250	schoenebeck	833	void LoadSubChunksRecursively();
251	schoenebeck	780	virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);
252			virtual void __resetPos(); ///< Sets List Chunk's read/write position to zero and causes all sub chunks to do the same.
253	schoenebeck	2	};
254
255			/** Parses arbitrary RIFF files and provides together with it's base classes convenient methods to walk through the RIFF tree. */
256			class File : public List {
257			public:
258	schoenebeck	798	File(uint32_t FileType);
259	schoenebeck	2	File(const String& path);
260	schoenebeck	780	stream_mode_t GetMode();
261			bool SetMode(stream_mode_t NewMode);
262	persson	1184	void SetByteOrder(endian_t Endian);
263	schoenebeck	780	String GetFileName();
264			virtual void Save();
265			virtual void Save(const String& path);
266	schoenebeck	384	virtual ~File();
267	schoenebeck	780	protected:
268			#if POSIX
269			int hFileRead; ///< handle / descriptor for reading from file
270			int hFileWrite; ///< handle / descriptor for writing to (some) file
271	schoenebeck	1050	#elif defined(WIN32)
272			HANDLE hFileRead; ///< handle / descriptor for reading from file
273			HANDLE hFileWrite; ///< handle / descriptor for writing to (some) file
274	schoenebeck	780	#else
275			FILE* hFileRead; ///< handle / descriptor for reading from file
276			FILE* hFileWrite; ///< handle / descriptor for writing to (some) file
277			#endif // POSIX
278			String Filename;
279			bool bEndianNative;
280
281			void LogAsResized(Chunk* pResizedChunk);
282	schoenebeck	1095	void UnlogResized(Chunk* pResizedChunk);
283	schoenebeck	780	friend class Chunk;
284			friend class List;
285	schoenebeck	2	private:
286	schoenebeck	780	stream_mode_t Mode;
287			ChunkList ResizedChunks; ///< All chunks which have been resized (enlarged / shortened).
288
289	schoenebeck	2	unsigned long GetFileSize();
290	schoenebeck	780	void ResizeFile(unsigned long ulNewSize);
291	schoenebeck	798	#if POSIX
292			unsigned long __GetFileSize(int hFile);
293	schoenebeck	1050	#elif defined(WIN32)
294			unsigned long __GetFileSize(HANDLE hFile);
295	schoenebeck	798	#else
296			unsigned long __GetFileSize(FILE* hFile);
297			#endif
298	schoenebeck	2	};
299
300			/** Will be thrown whenever an error occurs while parsing a RIFF file. */
301			class Exception {
302			public:
303			String Message;
304
305			Exception(String Message) { Exception::Message = Message; };
306			void PrintMessage();
307			virtual ~Exception() {};
308			};
309
310	schoenebeck	518	String libraryName();
311			String libraryVersion();
312
313	schoenebeck	2	} // namespace RIFF
314			#endif // __RIFF_H__