/src/FreeImage/Source/OpenEXR/IlmImf/ImfOpaqueAttribute.cpp

  1///////////////////////////////////////////////////////////////////////////
  2//
  3// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
  4// Digital Ltd. LLC
  5// 
  6// All rights reserved.
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  8// Redistribution and use in source and binary forms, with or without
  9// modification, are permitted provided that the following conditions are
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 15// in the documentation and/or other materials provided with the
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 33///////////////////////////////////////////////////////////////////////////
 34
 35
 36
 37//-----------------------------------------------------------------------------
 38//
 39//	class OpaqueAttribute
 40//
 41//-----------------------------------------------------------------------------
 42
 43#include <ImfOpaqueAttribute.h>
 44#include "Iex.h"
 45#include <string.h>
 46
 47namespace Imf {
 48
 49
 50OpaqueAttribute::OpaqueAttribute (const char typeName[]):
 51    _typeName (strlen (typeName) + 1),
 52    _dataSize (0)
 53{
 54    strcpy (_typeName, typeName);
 55}
 56
 57
 58OpaqueAttribute::OpaqueAttribute (const OpaqueAttribute &other):
 59    _typeName (strlen (other._typeName) + 1),
 60    _dataSize (other._dataSize),
 61    _data (other._dataSize)
 62{
 63    strcpy (_typeName, other._typeName);
 64    _data.resizeErase (other._dataSize);
 65    memcpy ((char *) _data, (const char *) other._data, other._dataSize);
 66}
 67
 68
 69OpaqueAttribute::~OpaqueAttribute ()
 70{
 71    // empty
 72}
 73
 74
 75const char *
 76OpaqueAttribute::typeName () const
 77{
 78    return _typeName;
 79}
 80
 81
 82Attribute *	
 83OpaqueAttribute::copy () const
 84{
 85    return new OpaqueAttribute (*this);
 86}
 87
 88
 89void	
 90OpaqueAttribute::writeValueTo (OStream &os, int version) const
 91{
 92    Xdr::write <StreamIO> (os, _data, _dataSize);
 93}
 94
 95
 96void	
 97OpaqueAttribute::readValueFrom (IStream &is, int size, int version)
 98{
 99    _data.resizeErase (size);
100    _dataSize = size;
101    Xdr::read <StreamIO> (is, _data, size);
102}
103
104
105void	
106OpaqueAttribute::copyValueFrom (const Attribute &other)
107{
108    const OpaqueAttribute *oa = dynamic_cast <const OpaqueAttribute *> (&other);
109
110    if (oa == 0 || strcmp (_typeName, oa->_typeName))
111    {
112	THROW (Iex::TypeExc, "Cannot copy the value of an "
113			     "image file attribute of type "
114			     "\"" << other.typeName() << "\" "
115			     "to an attribute of type "
116			     "\"" << _typeName << "\".");
117    }
118
119    _data.resizeErase (oa->_dataSize);
120    _dataSize = oa->_dataSize;
121    memcpy ((char *) _data, (const char *) oa->_data, oa->_dataSize);
122}
123
124
125} // namespace Imf