/[svn]/libgig/trunk/src/RIFF.h
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revision 1678 by persson, Sun Feb 10 16:07:22 2008 UTC revision 2543 by schoenebeck, Sat May 10 02:06:58 2014 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file access library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2007 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2014 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  *
# Line 38  Line 38 
38    
39  #include <string>  #include <string>
40  #include <list>  #include <list>
 #include <set>  
41  #include <map>  #include <map>
42  #include <iostream>  #include <iostream>
43    
# Line 53  Line 52 
52  # include <unistd.h>  # include <unistd.h>
53  #endif // POSIX  #endif // POSIX
54    
55    #ifdef _MSC_VER
56    // Visual C++ 2008 doesn't have stdint.h
57    typedef __int8 int8_t;
58    typedef __int16 int16_t;
59    typedef __int32 int32_t;
60    typedef __int64 int64_t;
61    typedef unsigned __int8 uint8_t;
62    typedef unsigned __int16 uint16_t;
63    typedef unsigned __int32 uint32_t;
64    typedef unsigned __int64 uint64_t;
65    #else
66  #include <stdint.h>  #include <stdint.h>
67    #endif
68    
69  #ifdef WIN32  #ifdef WIN32
70  # include <windows.h>  # include <windows.h>
# Line 66  Line 77 
77  # define CHUNK_ID_RIFF  0x52494646  # define CHUNK_ID_RIFF  0x52494646
78  # define CHUNK_ID_RIFX  0x52494658  # define CHUNK_ID_RIFX  0x52494658
79  # define CHUNK_ID_LIST  0x4C495354  # define CHUNK_ID_LIST  0x4C495354
80    
81    # define LIST_TYPE_INFO 0x494E464F
82    # define CHUNK_ID_ICMT  0x49434D54
83    # define CHUNK_ID_ICOP  0x49434F50
84    # define CHUNK_ID_ICRD  0x49435244
85    # define CHUNK_ID_IENG  0x49454E47
86    # define CHUNK_ID_INAM  0x494E414D
87    # define CHUNK_ID_IPRD  0x49505244
88    # define CHUNK_ID_ISFT  0x49534654
89    
90    # define CHUNK_ID_SMPL  0x736D706C
91    
92  #else  // little endian  #else  // little endian
93  # define CHUNK_ID_RIFF  0x46464952  # define CHUNK_ID_RIFF  0x46464952
94  # define CHUNK_ID_RIFX  0x58464952  # define CHUNK_ID_RIFX  0x58464952
95  # define CHUNK_ID_LIST  0x5453494C  # define CHUNK_ID_LIST  0x5453494C
96    
97    # define LIST_TYPE_INFO 0x4F464E49
98    # define CHUNK_ID_ICMT  0x544D4349
99    # define CHUNK_ID_ICOP  0x504F4349
100    # define CHUNK_ID_ICRD  0x44524349
101    # define CHUNK_ID_IENG  0x474E4549
102    # define CHUNK_ID_INAM  0x4D414E49
103    # define CHUNK_ID_IPRD  0x44525049
104    # define CHUNK_ID_ISFT  0x54465349
105    
106    # define CHUNK_ID_SMPL  0x6C706D73
107    
108  #endif // WORDS_BIGENDIAN  #endif // WORDS_BIGENDIAN
109    
110  #define CHUNK_HEADER_SIZE       8  #define CHUNK_HEADER_SIZE       8
# Line 134  namespace RIFF { Line 169  namespace RIFF {
169          endian_native = 2          endian_native = 2
170      } endian_t;      } endian_t;
171    
172        /** General chunk structure of a file. */
173        enum layout_t {
174            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.
175            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.
176        };
177    
178      /** @brief Ordinary RIFF Chunk      /** @brief Ordinary RIFF Chunk
179       *       *
180       * Provides convenient methods to access data of ordinary RIFF chunks       * Provides convenient methods to access data of ordinary RIFF chunks
# Line 143  namespace RIFF { Line 184  namespace RIFF {
184          public:          public:
185              Chunk(File* pFile, unsigned long StartPos, List* Parent);              Chunk(File* pFile, unsigned long StartPos, List* Parent);
186              String         GetChunkIDString();              String         GetChunkIDString();
187              uint32_t       GetChunkID() { return ChunkID; };            ///< Chunk ID in unsigned integer representation.              uint32_t       GetChunkID() { return ChunkID; }             ///< Chunk ID in unsigned integer representation.
188              List*          GetParent()  { return pParent; };            ///< Returns pointer to the chunk's parent list chunk.              File*          GetFile()    { return pFile;   }             ///< Returns pointer to the chunk's File object.
189              unsigned long  GetSize()    { return CurrentChunkSize; };   ///< Chunk size in bytes (without header, thus the chunk data body)              List*          GetParent()  { return pParent; }             ///< Returns pointer to the chunk's parent list chunk.
190              unsigned long  GetNewSize() { return NewChunkSize;     };   ///< New chunk size if it was modified with Resize().              unsigned long  GetSize() const { return CurrentChunkSize; } ///< Chunk size in bytes (without header, thus the chunk data body)
191              unsigned long  GetPos()     { return ulPos; };              ///< Position within the chunk data body              unsigned long  GetNewSize() { return NewChunkSize;     }    ///< New chunk size if it was modified with Resize().
192              unsigned long  GetFilePos() { return ulStartPos + ulPos; }; ///< Current, actual offset in file.              unsigned long  GetPos()     { return ulPos; }               ///< Position within the chunk data body
193                unsigned long  GetFilePos() { return ulStartPos + ulPos; }  ///< Current, actual offset in file.
194              unsigned long  SetPos(unsigned long Where, stream_whence_t Whence = stream_start);              unsigned long  SetPos(unsigned long Where, stream_whence_t Whence = stream_start);
195              unsigned long  RemainingBytes();              unsigned long  RemainingBytes();
196              stream_state_t GetState();              stream_state_t GetState();
# Line 165  namespace RIFF { Line 207  namespace RIFF {
207              uint16_t       ReadUint16();              uint16_t       ReadUint16();
208              int32_t        ReadInt32();              int32_t        ReadInt32();
209              uint32_t       ReadUint32();              uint32_t       ReadUint32();
210                void           ReadString(String& s, int size);
211              unsigned long  Write(void* pData, unsigned long WordCount, unsigned long WordSize);              unsigned long  Write(void* pData, unsigned long WordCount, unsigned long WordSize);
212              unsigned long  WriteInt8(int8_t* pData,     unsigned long WordCount = 1);              unsigned long  WriteInt8(int8_t* pData,     unsigned long WordCount = 1);
213              unsigned long  WriteUint8(uint8_t* pData,   unsigned long WordCount = 1);              unsigned long  WriteUint8(uint8_t* pData,   unsigned long WordCount = 1);
# Line 272  namespace RIFF { Line 315  namespace RIFF {
315              void LoadSubChunksRecursively();              void LoadSubChunksRecursively();
316              virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);              virtual unsigned long WriteChunk(unsigned long ulWritePos, unsigned long ulCurrentDataOffset);
317              virtual void __resetPos(); ///< Sets List Chunk's read/write position to zero and causes all sub chunks to do the same.              virtual void __resetPos(); ///< Sets List Chunk's read/write position to zero and causes all sub chunks to do the same.
318                void DeleteChunkList();
319      };      };
320    
321      /** @brief RIFF File      /** @brief RIFF File
# Line 284  namespace RIFF { Line 328  namespace RIFF {
328          public:          public:
329              File(uint32_t FileType);              File(uint32_t FileType);
330              File(const String& path);              File(const String& path);
331                File(const String& path, uint32_t FileType, endian_t Endian, layout_t layout);
332              stream_mode_t GetMode();              stream_mode_t GetMode();
333              bool          SetMode(stream_mode_t NewMode);              bool          SetMode(stream_mode_t NewMode);
334              void SetByteOrder(endian_t Endian);              void SetByteOrder(endian_t Endian);
335              String GetFileName();              String GetFileName();
336                void SetFileName(const String& path);
337                bool IsNew() const;
338                layout_t GetLayout() const;
339              virtual void Save();              virtual void Save();
340              virtual void Save(const String& path);              virtual void Save(const String& path);
341              virtual ~File();              virtual ~File();
# Line 304  namespace RIFF { Line 352  namespace RIFF {
352              #endif // POSIX              #endif // POSIX
353              String Filename;              String Filename;
354              bool   bEndianNative;              bool   bEndianNative;
355                bool   bIsNewFile;
356                layout_t Layout; ///< An ordinary RIFF file is always set to layout_standard.
357    
358              void LogAsResized(Chunk* pResizedChunk);              void LogAsResized(Chunk* pResizedChunk);
359              void UnlogResized(Chunk* pResizedChunk);              void UnlogResized(Chunk* pResizedChunk);
# Line 311  namespace RIFF { Line 361  namespace RIFF {
361              friend class List;              friend class List;
362          private:          private:
363              stream_mode_t  Mode;              stream_mode_t  Mode;
364              std::set<Chunk*> ResizedChunks; ///< All chunks which have been resized (enlarged / shortened).              ChunkList ResizedChunks; ///< All chunks which have been resized (enlarged / shortened).
365    
366                void __openExistingFile(const String& path, uint32_t* FileType = NULL);
367              unsigned long GetFileSize();              unsigned long GetFileSize();
368              void ResizeFile(unsigned long ulNewSize);              void ResizeFile(unsigned long ulNewSize);
369              #if POSIX              #if POSIX
# Line 322  namespace RIFF { Line 373  namespace RIFF {
373              #else              #else
374              unsigned long __GetFileSize(FILE* hFile);              unsigned long __GetFileSize(FILE* hFile);
375              #endif              #endif
376                void Cleanup();
377      };      };
378    
379      /**      /**
# Line 331  namespace RIFF { Line 383  namespace RIFF {
383          public:          public:
384              String Message;              String Message;
385    
386              Exception(String Message) { Exception::Message = Message; };              Exception(String Message) { Exception::Message = Message; }
387              void PrintMessage();              void PrintMessage();
388              virtual ~Exception() {};              virtual ~Exception() {}
389      };      };
390    
391      String libraryName();      String libraryName();
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