heads.cc

   1 // This file is part of the interchange file format library.
   2 //
   3 // Copyright (C) 2003-2006 by Mike Sharov <msharov@users.sourceforge.net>
   4 // This file is free software, distributed under the MIT License.
   5 //
   6 // heads.cc
   7 //
   8
   9 #include "xept.h"
  10
  11 namespace iff {
  12
  13 //----------------------------------------------------------------------
  14
  15 /// Verifies that the chunk is of \p fmt, or throws an exception.
  16 void CChunkHeader::Verify (fmt_t fmt, const char* chunkName, uoff_t offset) const
  17 {
  18     if (m_Format != fmt && fmt != cfmt_Autodetect)
  19         throw XFormatMismatch (chunkName, offset, fmt, m_Format);
  20 }
  21
  22 //----------------------------------------------------------------------
  23
  24 /// Initializes empty header.
  25 CGroupHeader::CGroupHeader (void)
  26 : CChunkHeader (stream_size() - CChunkHeader::stream_size(), cfmt_Generic),
  27   m_ChildFormat (cfmt_Generic)
  28 {
  29 }
  30
  31 /// Initializes header with given parameters
  32 CGroupHeader::CGroupHeader (chsize_t size, fmt_t childFormat, fmt_t fmt)
  33 : CChunkHeader (size + (stream_size() - CChunkHeader::stream_size()), fmt),
  34   m_ChildFormat (childFormat)
  35 {
  36 }
  37
  38 /// Verifies that the vector is of \p fmt, or throws an exception.
  39 void CGroupHeader::Verify (fmt_t childFmt, fmt_t fmt, const char* chunkName, uoff_t offset) const
  40 {
  41     CChunkHeader::Verify (fmt, chunkName, offset);
  42     if (m_ChildFormat != childFmt && childFmt != cfmt_Autodetect)
  43         throw XFormatMismatch (chunkName, offset, childFmt, m_ChildFormat);
  44 }
  45
  46 //----------------------------------------------------------------------
  47
  48 } // namespace iff
  49