text: ///////////////////////////////////////////////////////////////////////////
  //
  // Copyright (c) 2002, 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 ChannelListAttribute
  //
  //-----------------------------------------------------------------------------
  
  #include <ImfChannelListAttribute.h>
  
  
  namespace Imf {
  
  
  template <>
  const char *
  ChannelListAttribute::staticTypeName ()
  {
      return "chlist";
  }
  
  
  template <>
  void
  ChannelListAttribute::writeValueTo (OStream &os, int version) const
  {
      for (ChannelList::ConstIterator i = _value.begin();
  	 i != _value.end();
  	 ++i)
      {
  	//
  	// Write name
  	//
  
  	Xdr::write <StreamIO> (os, i.name());
  
  	//
  	// Write Channel struct
  	//
  
  	Xdr::write <StreamIO> (os, int (i.channel().type));
  	Xdr::pad   <StreamIO> (os, 4);
  	Xdr::write <StreamIO> (os, i.channel().xSampling);
  	Xdr::write <StreamIO> (os, i.channel().ySampling);
      }
  
      //
      // Write end of list marker
      //
  
      Xdr::write <StreamIO> (os, "");
  }
  
  
  template <>
  void
  ChannelListAttribute::readValueFrom (IStream &is, int size, int version)
  {
      while (true)
      {
  	//
  	// Read name; zero length name means end of channel list
  	//
  
  	char name[Name::SIZE];
  	Xdr::read <StreamIO> (is, sizeof (name), name);
  
  	if (name[0] == 0)
  	    break;
  
  	//
  	// Read Channel struct
  	//
  
  	int type;
  	int xSampling;
  	int ySampling;
  
  	Xdr::read <StreamIO> (is, type);
  	Xdr::skip <StreamIO> (is, 4);
  	Xdr::read <StreamIO> (is, xSampling);
  	Xdr::read <StreamIO> (is, ySampling);
  
  	_value.insert (name, Channel (PixelType (type), xSampling, ySampling));
      }
  }
  
  
  } // namespace Imf
  