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ImfFrameBuffer.cpp

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



//-----------------------------------------------------------------------------
//
//    class Slice
//    class FrameBuffer
//
//-----------------------------------------------------------------------------

#include <ImfFrameBuffer.h>
#include "Iex.h"


namespace Imf {


Slice::Slice (PixelType t,
            char *b,
            size_t xst,
            size_t yst,
            int xsm,
            int ysm,
            double fv,
              bool xtc,
              bool ytc)
:
    type (t),
    base (b),
    xStride (xst),
    yStride (yst),
    xSampling (xsm),
    ySampling (ysm),
    fillValue (fv),
    xTileCoords (xtc),
    yTileCoords (ytc)
{
    // empty
}


void  
FrameBuffer::insert (const char name[], const Slice &slice)
{
    if (name[0] == 0)
    {
      THROW (Iex::ArgExc,
             "Frame buffer slice name cannot be an empty string.");
    }

    _map[name] = slice;
}


Slice &
FrameBuffer::operator [] (const char name[])
{
    SliceMap::iterator i = _map.find (name);

    if (i == _map.end())
    {
      THROW (Iex::ArgExc,
             "Cannot find frame buffer slice \"" << name << "\".");
    }

    return i->second;
}


const Slice &
FrameBuffer::operator [] (const char name[]) const
{
    SliceMap::const_iterator i = _map.find (name);

    if (i == _map.end())
    {
      THROW (Iex::ArgExc,
             "Cannot find frame buffer slice \"" << name << "\".");
    }

    return i->second;
}


Slice *
FrameBuffer::findSlice (const char name[])
{
    SliceMap::iterator i = _map.find (name);
    return (i == _map.end())? 0: &i->second;
}


const Slice *
FrameBuffer::findSlice (const char name[]) const
{
    SliceMap::const_iterator i = _map.find (name);
    return (i == _map.end())? 0: &i->second;
}


FrameBuffer::Iterator         
FrameBuffer::begin ()
{
    return _map.begin();
}


FrameBuffer::ConstIterator    
FrameBuffer::begin () const
{
    return _map.begin();
}


FrameBuffer::Iterator
FrameBuffer::end ()
{
    return _map.end();
}


FrameBuffer::ConstIterator    
FrameBuffer::end () const
{
    return _map.end();
}


FrameBuffer::Iterator
FrameBuffer::find (const char name[])
{
    return _map.find (name);
}


FrameBuffer::ConstIterator
FrameBuffer::find (const char name[]) const
{
    return _map.find (name);
}


} // namespace Imf

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