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Open Source Computer Vision Library
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76 lines
3.0 KiB
76 lines
3.0 KiB
/////////////////////////////////////////////////////////////////////////// |
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// |
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// Copyright (c) 2011, Industrial Light & Magic, a division of Lucas |
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// Digital Ltd. LLC |
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// |
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// All rights reserved. |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Industrial Light & Magic nor the names of |
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// its contributors may be used to endorse or promote products derived |
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// from this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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// |
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/////////////////////////////////////////////////////////////////////////// |
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#include "ImfGenericInputFile.h" |
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#include <ImfVersion.h> |
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#include <ImfXdr.h> |
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#include <Iex.h> |
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#include <OpenEXRConfig.h> |
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OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER |
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void GenericInputFile::readMagicNumberAndVersionField(OPENEXR_IMF_INTERNAL_NAMESPACE::IStream& is, int& version) |
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{ |
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// |
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// Read the magic number and the file format version number. |
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// Then check if we can read the rest of this file. |
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// |
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int magic; |
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OPENEXR_IMF_INTERNAL_NAMESPACE::Xdr::read <OPENEXR_IMF_INTERNAL_NAMESPACE::StreamIO> (is, magic); |
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OPENEXR_IMF_INTERNAL_NAMESPACE::Xdr::read <OPENEXR_IMF_INTERNAL_NAMESPACE::StreamIO> (is, version); |
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if (magic != MAGIC) |
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{ |
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throw IEX_NAMESPACE::InputExc ("File is not an image file."); |
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} |
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if (getVersion (version) != EXR_VERSION) |
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{ |
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THROW (IEX_NAMESPACE::InputExc, "Cannot read " |
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"version " << getVersion (version) << " " |
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"image files. Current file format version " |
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"is " << EXR_VERSION << "."); |
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} |
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if (!supportsFlags (getFlags (version))) |
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{ |
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THROW (IEX_NAMESPACE::InputExc, "The file format version number's flag field " |
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"contains unrecognized flags."); |
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} |
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} |
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OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT
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