src/kits/debugger/util/BitBuffer.h

   1 /*
   2  * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef BIT_BUFFER_H
   6 #define BIT_BUFFER_H
   7
   8
   9 #include <SupportDefs.h>
  10
  11 #include <Array.h>
  12
  13
  14 class BitBuffer {
  15 public:
  16                                                                 BitBuffer();
  17                                                                 ~BitBuffer();
  18
  19                         bool                            AddBytes(const void* data, size_t size);
  20                         bool                            AddBits(const void* data, uint64 bitSize,
  21                                                                         uint32 bitOffset = 0);
  22                         bool                            AddZeroBits(uint64 bitSize);
  23
  24                         uint8*                          Bytes() const   { return fBytes.Elements(); }
  25                         size_t                          Size() const    { return fBytes.Size(); }
  26                         size_t                          BitSize() const
  27                                                                         { return Size() * 8 - fMissingBits; }
  28
  29 private:
  30                         struct BitReader;
  31
  32 private:
  33                         Array<uint8>            fBytes;
  34                         uint8                           fMissingBits;
  35 };
  36
  37
  38 #endif  // BIT_BUFFER_H