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

//

// 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,

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//

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

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

//

//	Classes for storing OpenEXR images in memory.

//

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

#include "Image.h"

#include "namespaceAlias.h"

using namespace IMF;

using namespace IMATH_NAMESPACE;

using namespace std;

ImageChannel::ImageChannel (Image &image): _image (image)

{

    // empty

}

ImageChannel::~ImageChannel ()

{

    // empty

}

Image::Image (): _dataWindow (Box2i (V2i (0, 0), V2i (0, 0)))

{

    // empty

}

Image::Image (const Box2i &dataWindow): _dataWindow (dataWindow)

{

    // empty

}

Image::~Image ()

{

    for (ChannelMap::iterator i = _channels.begin(); i != _channels.end(); ++i)

	delete i->second;

}

void			

Image::resize (const IMATH_NAMESPACE::Box2i &dataWindow)

{

    _dataWindow = dataWindow;

    for (ChannelMap::iterator i = _channels.begin(); i != _channels.end(); ++i)

	i->second->resize (width(), height());

}

void

Image::addChannel (const string &name, PixelType type)

{

    switch (type)

    {

      case IMF::HALF:

	_channels[name] = new HalfChannel (*this, width(), height());

	break;

      case IMF::FLOAT:

	_channels[name] = new FloatChannel (*this, width(), height());

	break;

      case IMF::UINT:

	_channels[name] = new UIntChannel (*this, width(), height());

	break;

      default:

	throw IEX_NAMESPACE::ArgExc ("Unknown channel type.");

    }

}

ImageChannel &

Image::channel (const string &name)

{

    return *_channels.find(name)->second;

}

const ImageChannel &

Image::channel (const string &name) const

{

    return *_channels.find(name)->second;

}