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

//

// 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 PreviewImageAttribute

//

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

#include <ImfPreviewImageAttribute.h>

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER

using namespace OPENEXR_IMF_INTERNAL_NAMESPACE;

template <>

const char *

PreviewImageAttribute::staticTypeName ()

{

    return "preview";

}

template <>

void

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

{

    Xdr::write <StreamIO> (os, _value.width());

    Xdr::write <StreamIO> (os, _value.height());

    int numPixels = _value.width() * _value.height();

    const PreviewRgba *pixels = _value.pixels();

    for (int i = 0; i < numPixels; ++i)

    {

	Xdr::write <StreamIO> (os, pixels[i].r);

	Xdr::write <StreamIO> (os, pixels[i].g);

	Xdr::write <StreamIO> (os, pixels[i].b);

	Xdr::write <StreamIO> (os, pixels[i].a);

    }

}

template <>

void

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

{

    int width, height;

    Xdr::read <StreamIO> (is, width);

    Xdr::read <StreamIO> (is, height);

    PreviewImage p (width, height);

    int numPixels = p.width() * p.height();

    PreviewRgba *pixels = p.pixels();

    for (int i = 0; i < numPixels; ++i)

    {

	Xdr::read <StreamIO> (is, pixels[i].r);

	Xdr::read <StreamIO> (is, pixels[i].g);

	Xdr::read <StreamIO> (is, pixels[i].b);

	Xdr::read <StreamIO> (is, pixels[i].a);

    }

    _value = p;

}

OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT