///////////////////////////////////////////////////////////////////////////

//

// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas

// Digital Ltd. LLC

// 

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

// *       Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// *       Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// *       Neither the name of Industrial Light & Magic nor the names of

// its contributors may be used to endorse or promote products derived

// from this software without specific prior written permission. 

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

///////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------------

//

//	class OpaqueAttribute

//

//-----------------------------------------------------------------------------

#include <ImfOpaqueAttribute.h>

#include "Iex.h"

#include <string.h>

#include "ImfNamespace.h"

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER

OpaqueAttribute::OpaqueAttribute (const char typeName[]):

    _typeName (strlen (typeName) + 1),

    _dataSize (0)

{

    strcpy (_typeName, typeName);

}

OpaqueAttribute::OpaqueAttribute (const OpaqueAttribute &other):

    _typeName (strlen (other._typeName) + 1),

    _dataSize (other._dataSize),

    _data (other._dataSize)

{

    strcpy (_typeName, other._typeName);

    _data.resizeErase (other._dataSize);

    memcpy ((char *) _data, (const char *) other._data, other._dataSize);

}

OpaqueAttribute::~OpaqueAttribute ()

{

    // empty

}

const char *

OpaqueAttribute::typeName () const

{

    return _typeName;

}

Attribute *	

OpaqueAttribute::copy () const

{

    return new OpaqueAttribute (*this);

}

void	

OpaqueAttribute::writeValueTo (OPENEXR_IMF_INTERNAL_NAMESPACE::OStream &os, int version) const

{

    Xdr::write <StreamIO> (os, _data, _dataSize);

}

void	

OpaqueAttribute::readValueFrom (OPENEXR_IMF_INTERNAL_NAMESPACE::IStream &is, int size, int version)

{

    _data.resizeErase (size);

    _dataSize = size;

    Xdr::read <StreamIO> (is, _data, size);

}

void	

OpaqueAttribute::copyValueFrom (const Attribute &other)

{

    const OpaqueAttribute *oa = dynamic_cast <const OpaqueAttribute *> (&other);

    if (oa == 0 || strcmp (_typeName, oa->_typeName))

    {

	THROW (IEX_NAMESPACE::TypeExc, "Cannot copy the value of an "

			     "image file attribute of type "

			     "\"" << other.typeName() << "\" "

			     "to an attribute of type "

			     "\"" << _typeName << "\".");

    }

    _data.resizeErase (oa->_dataSize);

    _dataSize = oa->_dataSize;

    memcpy ((char *) _data, (const char *) oa->_data, oa->_dataSize);

}

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT