/[svn]/libgig/trunk/src/RIFF.h
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revision 11 by schoenebeck, Sun Nov 16 17:47:00 2003 UTC revision 2912 by schoenebeck, Tue May 17 14:30:10 2016 UTC
# Line 1  Line 1 
1  /***************************************************************************  /***************************************************************************
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file loader library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Christian Schoenebeck                           *   *   Copyright (C) 2003-2016 by Christian Schoenebeck                      *
6   *                         <cuse@users.sourceforge.net>                    *   *                              <cuse@users.sourceforge.net>               *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   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  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 24 
24  #ifndef __RIFF_H__  #ifndef __RIFF_H__
25  #define __RIFF_H__  #define __RIFF_H__
26    
27  #define POSIX 1  #ifdef WIN32
28  #define DEBUG 0  # define POSIX 0
29    #endif
30    
31    #ifndef POSIX
32    # define POSIX 1
33    #endif
34    
35    #ifndef DEBUG
36    # define DEBUG 0
37    #endif
38    
39  #include <string>  #include <string>
40  #include <list>  #include <list>
41  #include <map>  #include <map>
42    #include <set>
43  #include <iostream>  #include <iostream>
44    
45  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
# Line 43  Line 53 
53  # include <unistd.h>  # include <unistd.h>
54  #endif // POSIX  #endif // POSIX
55    
56    #ifdef _MSC_VER
57    // Visual C++ 2008 doesn't have stdint.h
58    typedef __int8 int8_t;
59    typedef __int16 int16_t;
60    typedef __int32 int32_t;
61    typedef __int64 int64_t;
62    typedef unsigned __int8 uint8_t;
63    typedef unsigned __int16 uint16_t;
64    typedef unsigned __int32 uint32_t;
65    typedef unsigned __int64 uint64_t;
66    #else
67  #include <stdint.h>  #include <stdint.h>
68    #endif
69    
70  //typedef unsigned char  uint8_t;  #ifdef WIN32
71  //typedef unsigned short uint16_t;  # include <windows.h>
72  //typedef unsigned int   uint32_t;    typedef unsigned int   uint;
73    #endif // WIN32
74    
75  #include <stdio.h>  #include <stdio.h>
76    
# Line 55  Line 78 
78  # define CHUNK_ID_RIFF  0x52494646  # define CHUNK_ID_RIFF  0x52494646
79  # define CHUNK_ID_RIFX  0x52494658  # define CHUNK_ID_RIFX  0x52494658
80  # define CHUNK_ID_LIST  0x4C495354  # define CHUNK_ID_LIST  0x4C495354
81    
82    # define LIST_TYPE_INFO 0x494E464F
83    # define CHUNK_ID_ICMT  0x49434D54
84    # define CHUNK_ID_ICOP  0x49434F50
85    # define CHUNK_ID_ICRD  0x49435244
86    # define CHUNK_ID_IENG  0x49454E47
87    # define CHUNK_ID_INAM  0x494E414D
88    # define CHUNK_ID_IPRD  0x49505244
89    # define CHUNK_ID_ISFT  0x49534654
90    
91    # define CHUNK_ID_SMPL  0x736D706C
92    
93  #else  // little endian  #else  // little endian
94  # define CHUNK_ID_RIFF  0x46464952  # define CHUNK_ID_RIFF  0x46464952
95  # define CHUNK_ID_RIFX  0x58464952  # define CHUNK_ID_RIFX  0x58464952
96  # define CHUNK_ID_LIST  0x5453494C  # define CHUNK_ID_LIST  0x5453494C
 #endif // WORDS_BIGENDIAN  
97    
98  #define CHUNK_HEADER_SIZE       8  # define LIST_TYPE_INFO 0x4F464E49
99  #define LIST_HEADER_SIZE        12  # define CHUNK_ID_ICMT  0x544D4349
100  #define RIFF_HEADER_SIZE        12  # define CHUNK_ID_ICOP  0x504F4349
101    # define CHUNK_ID_ICRD  0x44524349
102    # define CHUNK_ID_IENG  0x474E4549
103    # define CHUNK_ID_INAM  0x4D414E49
104    # define CHUNK_ID_IPRD  0x44525049
105    # define CHUNK_ID_ISFT  0x54465349
106    
107    # define CHUNK_ID_SMPL  0x6C706D73
108    
109    #endif // WORDS_BIGENDIAN
110    
111  /** RIFF specific classes and definitions */  #define CHUNK_HEADER_SIZE(fileOffsetSize)   (4 + fileOffsetSize)
112    #define LIST_HEADER_SIZE(fileOffsetSize)    (8 + fileOffsetSize)
113    #define RIFF_HEADER_SIZE(fileOffsetSize)    (8 + fileOffsetSize)
114    
115    /**
116     * @brief RIFF specific classes and definitions
117     *
118     * The Resource Interchange File Format (RIFF) is a generic tree-structured
119     * meta-format which stores data in so called "chunks". It can be compared
120     * to XML, but in contrast to XML, RIFF is entirely binary encoded, that is
121     * not ASCII based. RIFF is used as basis for many file formats like AVI,
122     * WAV, DLS and of course the Gigasampler file format. ;-)
123     *
124     * RIFF chunks can be seen as containers for data. There are two distinct
125     * types of chunks:
126     *
127     * - @e ordinary @e chunks are the leafs of the data tree which encapsulate
128     *   the actual data of the file (i.e. the sample data of a .wav file)
129     *
130     * - @e list @e chunks are the nodes of the data tree which hold an
131     *   arbitrary amount of subchunks (can be both, list chunks and/or ordinary
132     *   chunks)
133     */
134  namespace RIFF {  namespace RIFF {
135    
136      /* just symbol prototyping */      /* just symbol prototyping */
137      class Chunk;      class Chunk;
138      class List;      class List;
139        class File;
140    
141      typedef std::string String;      typedef std::string String;
142    
143        /** Type used by libgig for handling file positioning during file I/O tasks. */
144        typedef uint64_t file_offset_t;
145    
146        /** Whether file stream is open in read or in read/write mode. */
147        typedef enum {
148            stream_mode_read       = 0,
149            stream_mode_read_write = 1,
150            stream_mode_closed     = 2
151        } stream_mode_t;
152    
153      /** Current state of the file stream. */      /** Current state of the file stream. */
154      typedef enum {      typedef enum {
155          stream_ready       = 0,          stream_ready       = 0,
# Line 90  namespace RIFF { Line 165  namespace RIFF {
165          stream_end      = 3          stream_end      = 3
166      } stream_whence_t;      } stream_whence_t;
167    
168      /** Provides convenient methods to access data of RIFF chunks in general. */      /** Alignment of data bytes in memory (system dependant). */
169        typedef enum {
170            endian_little = 0,
171            endian_big    = 1,
172            endian_native = 2
173        } endian_t;
174    
175        /** General RIFF chunk structure of a RIFF file. */
176        enum layout_t {
177            layout_standard = 0, ///< Standard RIFF file layout: First chunk in file is a List chunk which contains all other chunks and there are no chunks outside the scope of that very first (List) chunk.
178            layout_flat     = 1  ///< Not a "real" RIFF file: First chunk in file is an ordinary data chunk, not a List chunk, and there might be other chunks after that first chunk.
179        };
180    
181        /** Size of RIFF file offsets used in all RIFF chunks' headers. @see File::GetFileOffsetSize() */
182        enum offset_size_t {
183            offset_size_auto  = 0, ///< Use 32 bit offsets for files smaller than 4 GB, use 64 bit offsets for files equal or larger than 4 GB.
184            offset_size_32bit = 4, ///< Always use 32 bit offsets (even for files larger than 4 GB).
185            offset_size_64bit = 8  ///< Always use 64 bit offsets (even for files smaller than 4 GB).
186        };
187    
188        /**
189         * @brief Used for indicating the progress of a certain task.
190         *
191         * The function pointer argument has to be supplied with a valid
192         * function of the given signature which will then be called on
193         * progress changes. An equivalent progress_t structure will be passed
194         * back as argument to the callback function on each progress change.
195         * The factor field of the supplied progress_t structure will then
196         * reflect the current progress as value between 0.0 and 1.0. You might
197         * want to use the custom field for data needed in your callback
198         * function.
199         */
200        struct progress_t {
201            void (*callback)(progress_t*); ///< Callback function pointer which has to be assigned to a function for progress notification.
202            float factor;                  ///< Reflects current progress as value between 0.0 and 1.0.
203            void* custom;                  ///< This pointer can be used for arbitrary data.
204            float __range_min;             ///< Only for internal usage, do not modify!
205            float __range_max;             ///< Only for internal usage, do not modify!
206            progress_t();
207        };
208    
209        /** @brief Ordinary RIFF Chunk
210         *
211         * Provides convenient methods to access data of ordinary RIFF chunks
212         * in general.
213         */
214      class Chunk {      class Chunk {
215          public:          public:
216              #if POSIX              Chunk(File* pFile, file_offset_t StartPos, List* Parent);
217              Chunk(int hFile, unsigned long StartPos, bool EndianNative, List* Parent);              String         GetChunkIDString() const;
218              #else              uint32_t       GetChunkID() const { return ChunkID; }       ///< Chunk ID in unsigned integer representation.
219              Chunk(FILE* hFile, unsigned long StartPos, bool EndianNative, List* Parent);              File*          GetFile() const    { return pFile;   }       ///< Returns pointer to the chunk's File object.
220              #endif // POSIX              List*          GetParent() const  { return pParent; }       ///< Returns pointer to the chunk's parent list chunk.
221              String         GetChunkIDString();              file_offset_t  GetSize() const { return ullCurrentChunkSize; } ///< Chunk size in bytes (without header, thus the chunk data body)
222              uint32_t       GetChunkID() { return ChunkID; };            ///< Chunk ID in unsigned integer representation.              file_offset_t  GetNewSize() const { return ullNewChunkSize; } ///< New chunk size if it was modified with Resize(), otherwise value returned will be equal to GetSize().
223              List*          GetParent()  { return pParent; };            ///< Returns pointer to the chunk's parent list chunk.              file_offset_t  GetPos() const { return ullPos; }            ///< Position within the chunk data body (starting with 0).
224              unsigned long  GetSize()    { return ChunkSize; };          ///< Chunk size in bytes (without header, thus the chunk data body)              file_offset_t  GetFilePos() const { return ullStartPos + ullPos; } ///< Current, actual offset of chunk data body start in file.
225              unsigned long  GetPos()     { return ulPos; };              ///< Position within the chunk data body              file_offset_t  SetPos(file_offset_t Where, stream_whence_t Whence = stream_start);
226              unsigned long  GetFilePos() { return ulStartPos + ulPos; }; ///< Current, actual offset in file.              file_offset_t  RemainingBytes() const;
227              unsigned long  SetPos(unsigned long Where, stream_whence_t Whence = stream_start);              stream_state_t GetState() const;
228              unsigned long  RemainingBytes();              file_offset_t  Read(void* pData, file_offset_t WordCount, file_offset_t WordSize);
229              stream_state_t GetState();              file_offset_t  ReadInt8(int8_t* pData,     file_offset_t WordCount = 1);
230              unsigned long  Read(void* pData, unsigned long WordCount, unsigned long WordSize);              file_offset_t  ReadUint8(uint8_t* pData,   file_offset_t WordCount = 1);
231              unsigned long  ReadInt8(int8_t* pData,     unsigned long WordCount = 1);              file_offset_t  ReadInt16(int16_t* pData,   file_offset_t WordCount = 1);
232              unsigned long  ReadUint8(uint8_t* pData,   unsigned long WordCount = 1);              file_offset_t  ReadUint16(uint16_t* pData, file_offset_t WordCount = 1);
233              unsigned long  ReadInt16(int16_t* pData,   unsigned long WordCount = 1);              file_offset_t  ReadInt32(int32_t* pData,   file_offset_t WordCount = 1);
234              unsigned long  ReadUint16(uint16_t* pData, unsigned long WordCount = 1);              file_offset_t  ReadUint32(uint32_t* pData, file_offset_t WordCount = 1);
             unsigned long  ReadInt32(int32_t* pData,   unsigned long WordCount = 1);  
             unsigned long  ReadUint32(uint32_t* pData, unsigned long WordCount = 1);  
235              int8_t         ReadInt8();              int8_t         ReadInt8();
236              uint8_t        ReadUint8();              uint8_t        ReadUint8();
237              int16_t        ReadInt16();              int16_t        ReadInt16();
238              uint16_t       ReadUint16();              uint16_t       ReadUint16();
239              int32_t        ReadInt32();              int32_t        ReadInt32();
240              uint32_t       ReadUint32();              uint32_t       ReadUint32();
241              void*          LoadChunkData();     ///< Load the whole chunk body in memory (on success returns a pointer to the data in RAM, else NULL).              void           ReadString(String& s, int size);
242              void           ReleaseChunkData();  ///< Free loaded chunk body data from memory (RAM).              file_offset_t  Write(void* pData, file_offset_t WordCount, file_offset_t WordSize);
243             ~Chunk();              file_offset_t  WriteInt8(int8_t* pData,     file_offset_t WordCount = 1);
244                file_offset_t  WriteUint8(uint8_t* pData,   file_offset_t WordCount = 1);
245                file_offset_t  WriteInt16(int16_t* pData,   file_offset_t WordCount = 1);
246                file_offset_t  WriteUint16(uint16_t* pData, file_offset_t WordCount = 1);
247                file_offset_t  WriteInt32(int32_t* pData,   file_offset_t WordCount = 1);
248                file_offset_t  WriteUint32(uint32_t* pData, file_offset_t WordCount = 1);
249                void*          LoadChunkData();
250                void           ReleaseChunkData();
251                void           Resize(file_offset_t NewSize);
252                virtual ~Chunk();
253          protected:          protected:
254              uint32_t      ChunkID;              uint32_t      ChunkID;
255              uint32_t      ChunkSize;            /* in bytes */              file_offset_t ullCurrentChunkSize;          /* in bytes */
256                file_offset_t ullNewChunkSize;                      /* in bytes (if chunk was scheduled to be resized) */
257              List*         pParent;              List*         pParent;
258              #if POSIX              File*         pFile;
259              int           hFile;              file_offset_t ullStartPos;  /* actual position in file where chunk data (without header) starts */
260              #else              file_offset_t ullPos;       /* # of bytes from ulStartPos */
             FILE*         hFile;  
             #endif // POSIX  
             unsigned long ulStartPos;           /* actual position in file where chunk (without header) starts */  
             unsigned long ulPos;                /* # of bytes from ulStartPos */  
             bool          bEndianNative;  
261              uint8_t*      pChunkData;              uint8_t*      pChunkData;
262                file_offset_t ullChunkDataSize;
263    
264              Chunk();              Chunk(File* pFile);
265              void          ReadHeader(unsigned long fPos);              Chunk(File* pFile, List* pParent, uint32_t uiChunkID, file_offset_t ullBodySize);
266              unsigned long ReadSceptical(void* pData, unsigned long WordCount, unsigned long WordSize);              void ReadHeader(file_offset_t filePos);
267              inline void   swapBytes_16(void* Word) {              void WriteHeader(file_offset_t filePos);
268                  uint8_t byteCache = *((uint8_t*) Word);              file_offset_t ReadSceptical(void* pData, file_offset_t WordCount, file_offset_t WordSize);
269                  *((uint8_t*) Word)     = *((uint8_t*) Word + 1);              inline static String convertToString(uint32_t word) {
                 *((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) {  
270                  String result;                  String result;
271                  for (int i = 0; i < 4; i++) {                  for (int i = 0; i < 4; i++) {
272                      uint8_t byte = *((uint8_t*)(&word) + i);                      uint8_t byte = *((uint8_t*)(&word) + i);
# Line 171  namespace RIFF { Line 275  namespace RIFF {
275                  }                  }
276                  return result;                  return result;
277              }              }
278                virtual file_offset_t RequiredPhysicalSize(int fileOffsetSize);
279                virtual file_offset_t WriteChunk(file_offset_t ullWritePos, file_offset_t ullCurrentDataOffset, progress_t* pProgress = NULL);
280                virtual void __resetPos(); ///< Sets Chunk's read/write position to zero.
281    
282                friend class List;
283      };      };
284    
285      /** Provides convenient methods to access data of RIFF list chunks and their subchunks. */      /** @brief RIFF List Chunk
286         *
287         * Provides convenient methods to access data of RIFF list chunks and
288         * their subchunks.
289         */
290      class List : public Chunk {      class List : public Chunk {
291          public:          public:
292              #if POSIX              List(File* pFile, file_offset_t StartPos, List* Parent);
293              List(int hFile, unsigned long StartPos, bool EndianNative, List* Parent);              String       GetListTypeString() const;
294              #else              uint32_t     GetListType() const { return ListType; } ///< Returns unsigned integer representation of the list's ID
             List(FILE* hFile, unsigned long StartPos, bool EndianNative, List* Parent);  
             #endif // POSIX  
             String       GetListTypeString();  
             uint32_t     GetListType() { return ListType; }   ///< Returns unsigned integer representation of the list's ID  
295              Chunk*       GetSubChunk(uint32_t ChunkID);              Chunk*       GetSubChunk(uint32_t ChunkID);
296              List*        GetSubList(uint32_t ListType);              List*        GetSubList(uint32_t ListType);
297              Chunk*       GetFirstSubChunk();              Chunk*       GetFirstSubChunk();
# Line 193  namespace RIFF { Line 302  namespace RIFF {
302              unsigned int CountSubChunks(uint32_t ChunkID);              unsigned int CountSubChunks(uint32_t ChunkID);
303              unsigned int CountSubLists();              unsigned int CountSubLists();
304              unsigned int CountSubLists(uint32_t ListType);              unsigned int CountSubLists(uint32_t ListType);
305             ~List();              Chunk*       AddSubChunk(uint32_t uiChunkID, file_offset_t ullBodySize);
306                List*        AddSubList(uint32_t uiListType);
307                void         DeleteSubChunk(Chunk* pSubChunk);
308                void         MoveSubChunk(Chunk* pSrc, Chunk* pDst); // read API doc comments !!!
309                void         MoveSubChunk(Chunk* pSrc, List* pNewParent);
310                virtual ~List();
311          protected:          protected:
312              typedef std::map<uint32_t, RIFF::Chunk*>  ChunkMap;              typedef std::map<uint32_t, RIFF::Chunk*>  ChunkMap;
313              typedef std::list<Chunk*>                 ChunkList;              typedef std::list<Chunk*>                 ChunkList;
314                typedef std::set<Chunk*>                  ChunkSet;
315    
316              uint32_t   ListType;              uint32_t   ListType;
317              ChunkList* pSubChunks;              ChunkList* pSubChunks;
# Line 204  namespace RIFF { Line 319  namespace RIFF {
319              ChunkList::iterator ChunksIterator;              ChunkList::iterator ChunksIterator;
320              ChunkList::iterator ListIterator;              ChunkList::iterator ListIterator;
321    
322              List();              List(File* pFile);
323              void ReadHeader(unsigned long fPos);              List(File* pFile, List* pParent, uint32_t uiListID);
324              void LoadSubChunks();              void ReadHeader(file_offset_t filePos);
325                void WriteHeader(file_offset_t filePos);
326                void LoadSubChunks(progress_t* pProgress = NULL);
327                void LoadSubChunksRecursively(progress_t* pProgress = NULL);
328                virtual file_offset_t RequiredPhysicalSize(int fileOffsetSize);
329                virtual file_offset_t WriteChunk(file_offset_t ullWritePos, file_offset_t ullCurrentDataOffset, progress_t* pProgress = NULL);
330                virtual void __resetPos(); ///< Sets List Chunk's read/write position to zero and causes all sub chunks to do the same.
331                void DeleteChunkList();
332      };      };
333    
334      /** Parses arbitrary RIFF files and provides together with it's base classes convenient methods to walk through the RIFF tree. */      /** @brief RIFF File
335         *
336         * Handles arbitrary RIFF files and provides together with its base
337         * classes convenient methods to walk through, read and modify the
338         * file's RIFF tree.
339         */
340      class File : public List {      class File : public List {
341          public:          public:
342                File(uint32_t FileType);
343              File(const String& path);              File(const String& path);
344             ~File();              File(const String& path, uint32_t FileType, endian_t Endian, layout_t layout, offset_size_t fileOffsetSize = offset_size_auto);
345                stream_mode_t GetMode() const;
346                bool          SetMode(stream_mode_t NewMode);
347                void SetByteOrder(endian_t Endian);
348                String GetFileName() const;
349                void SetFileName(const String& path);
350                bool IsNew() const;
351                layout_t GetLayout() const;
352                file_offset_t GetCurrentFileSize() const;
353                file_offset_t GetRequiredFileSize();
354                file_offset_t GetRequiredFileSize(offset_size_t fileOffsetSize);
355                int GetFileOffsetSize() const;
356                int GetRequiredFileOffsetSize();
357    
358                virtual void Save(progress_t* pProgress = NULL);
359                virtual void Save(const String& path, progress_t* pProgress = NULL);
360                virtual ~File();
361            protected:
362                #if POSIX
363                int    hFileRead;  ///< handle / descriptor for reading from file
364                int    hFileWrite; ///< handle / descriptor for writing to (some) file
365                #elif defined(WIN32)
366                HANDLE hFileRead;  ///< handle / descriptor for reading from file
367                HANDLE hFileWrite; ///< handle / descriptor for writing to (some) file
368                #else
369                FILE*  hFileRead;  ///< handle / descriptor for reading from file
370                FILE*  hFileWrite; ///< handle / descriptor for writing to (some) file
371                #endif // POSIX
372                String Filename;
373                bool   bEndianNative;
374                bool   bIsNewFile;
375                layout_t Layout; ///< An ordinary RIFF file is always set to layout_standard.
376                offset_size_t FileOffsetPreference;
377                int FileOffsetSize; ///< Size of file offsets (in bytes) when this file was opened (or saved the last time).
378    
379                friend class Chunk;
380                friend class List;
381          private:          private:
382              unsigned long GetFileSize();              stream_mode_t  Mode;
383    
384                void __openExistingFile(const String& path, uint32_t* FileType = NULL);
385                void ResizeFile(file_offset_t ullNewSize);
386                #if POSIX
387                file_offset_t __GetFileSize(int hFile) const;
388                #elif defined(WIN32)
389                file_offset_t __GetFileSize(HANDLE hFile) const;
390                #else
391                file_offset_t __GetFileSize(FILE* hFile) const;
392                #endif
393                int FileOffsetSizeFor(file_offset_t fileSize) const;
394                void Cleanup();
395      };      };
396    
397      /** Will be thrown whenever an error occurs while parsing a RIFF file. */      /**
398         * Will be thrown whenever an error occurs while handling a RIFF file.
399         */
400      class Exception {      class Exception {
401          public:          public:
402              String Message;              String Message;
403    
404              Exception(String Message) { Exception::Message = Message; };              Exception(String Message) { Exception::Message = Message; }
405              void PrintMessage();              void PrintMessage();
406              virtual ~Exception() {};              virtual ~Exception() {}
407      };      };
408    
409        String libraryName();
410        String libraryVersion();
411    
412  } // namespace RIFF  } // namespace RIFF
413  #endif // __RIFF_H__  #endif // __RIFF_H__
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