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cs440-acg/ext/openexr/OpenEXR/IlmImfUtil/ImfFlatImageLevel.cpp

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+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2014, 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 FlatImageLevel
+//
+//----------------------------------------------------------------------------
+
+#include "ImfFlatImageLevel.h"
+#include "ImfFlatImage.h"
+#include <Iex.h>
+#include <cassert>
+
+using namespace IMATH_NAMESPACE;
+using namespace IEX_NAMESPACE;
+using namespace std;
+
+OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
+
+
+FlatImageLevel::FlatImageLevel
+    (FlatImage& image,
+     int xLevelNumber,
+     int yLevelNumber,
+     const Box2i& dataWindow)
+:
+    ImageLevel (image, xLevelNumber, yLevelNumber)
+{
+    resize (dataWindow);
+}
+
+
+FlatImage &
+FlatImageLevel::flatImage ()
+{
+    return static_cast <FlatImage &> (image());
+}
+
+
+const FlatImage &
+FlatImageLevel::flatImage () const
+{
+    return static_cast <const FlatImage &> (image());
+}
+
+
+FlatImageLevel::~FlatImageLevel ()
+{
+    clearChannels();
+}
+
+
+void			
+FlatImageLevel::resize (const Imath::Box2i& dataWindow)
+{
+    //
+    // Note: if the following code throws an exception, then the image level
+    // may be left in an inconsistent state where some channels have been
+    // resized, but others have not.  However, the image to which this level
+    // belongs will catch the exception and clean up the mess.
+    //
+
+    ImageLevel::resize (dataWindow);
+
+    for (ChannelMap::iterator i = _channels.begin(); i != _channels.end(); ++i)
+        i->second->resize();
+}
+
+
+void
+FlatImageLevel::shiftPixels (int dx, int dy)
+{
+    ImageLevel::shiftPixels (dx, dy);
+
+    for (ChannelMap::iterator i = _channels.begin(); i != _channels.end(); ++i)
+        i->second->resetBasePointer();
+}
+
+
+void
+FlatImageLevel::insertChannel
+    (const string& name,
+     PixelType type,
+     int xSampling,
+     int ySampling,
+     bool pLinear)
+{
+    if (_channels.find (name) != _channels.end())
+        throwChannelExists (name);
+
+    switch (type)
+    {
+      case HALF:
+	_channels[name] =
+            new FlatHalfChannel (*this, xSampling, ySampling, pLinear);
+	break;
+
+      case FLOAT:
+	_channels[name] =
+            new FlatFloatChannel (*this, xSampling, ySampling, pLinear);
+	break;
+
+      case UINT:
+	_channels[name] =
+            new FlatUIntChannel (*this, xSampling, ySampling, pLinear);
+	break;
+
+      default:
+        assert (false);
+    }
+}
+
+
+void
+FlatImageLevel::eraseChannel (const string& name)
+{
+    ChannelMap::iterator i = _channels.find (name);
+
+    if (i != _channels.end())
+    {
+        delete i->second;
+        _channels.erase (i);
+    }
+}
+
+
+void
+FlatImageLevel::clearChannels ()
+{
+    for (ChannelMap::iterator i = _channels.begin(); i != _channels.end(); ++i)
+	delete i->second;
+
+    _channels.clear();
+}
+
+
+void
+FlatImageLevel::renameChannel (const string &oldName, const string &newName)
+{
+    ChannelMap::iterator oldChannel = _channels.find (oldName);
+
+    assert (oldChannel != _channels.end());
+    assert (_channels.find (newName) == _channels.end());
+
+    _channels[newName] = oldChannel->second;
+    _channels.erase (oldChannel);
+}
+
+
+void
+FlatImageLevel::renameChannels (const RenamingMap &oldToNewNames)
+{
+    renameChannelsInMap (oldToNewNames, _channels);
+}
+
+
+FlatImageChannel *
+FlatImageLevel::findChannel (const string& name)
+{
+    ChannelMap::iterator i = _channels.find (name);
+
+    if (i != _channels.end())
+        return i->second;
+    else
+        return 0;
+}
+
+
+const FlatImageChannel *
+FlatImageLevel::findChannel (const string& name) const
+{
+    ChannelMap::const_iterator i = _channels.find (name);
+
+    if (i != _channels.end())
+        return i->second;
+    else
+        return 0;
+}
+
+
+FlatImageChannel &
+FlatImageLevel::channel (const string& name)
+{
+    ChannelMap::iterator i = _channels.find (name);
+
+    if (i == _channels.end())
+        throwBadChannelName (name);
+
+    return *i->second;
+}
+
+
+const FlatImageChannel &
+FlatImageLevel::channel (const string& name) const
+{
+    ChannelMap::const_iterator i = _channels.find (name);
+
+    if (i == _channels.end())
+        throwBadChannelName (name);
+
+    return *i->second;
+}
+
+
+FlatImageLevel::Iterator
+FlatImageLevel::begin ()
+{
+    return _channels.begin();
+}
+
+
+FlatImageLevel::ConstIterator
+FlatImageLevel::begin () const
+{
+    return _channels.begin();
+}
+
+
+FlatImageLevel::Iterator
+FlatImageLevel::end ()
+{
+    return _channels.end();
+}
+
+
+FlatImageLevel::ConstIterator
+FlatImageLevel::end () const
+{
+    return _channels.end();
+}
+
+
+OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT