77 lines
3.0 KiB
C++
77 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (c) 2011, 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.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "ImfGenericInputFile.h"
|
|
|
|
#include <ImfVersion.h>
|
|
#include <ImfXdr.h>
|
|
#include <Iex.h>
|
|
#include <OpenEXRConfig.h>
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
|
|
|
|
void GenericInputFile::readMagicNumberAndVersionField(OPENEXR_IMF_INTERNAL_NAMESPACE::IStream& is, int& version)
|
|
{
|
|
//
|
|
// Read the magic number and the file format version number.
|
|
// Then check if we can read the rest of this file.
|
|
//
|
|
|
|
int magic;
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE::Xdr::read <OPENEXR_IMF_INTERNAL_NAMESPACE::StreamIO> (is, magic);
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE::Xdr::read <OPENEXR_IMF_INTERNAL_NAMESPACE::StreamIO> (is, version);
|
|
|
|
if (magic != MAGIC)
|
|
{
|
|
throw IEX_NAMESPACE::InputExc ("File is not an image file.");
|
|
}
|
|
|
|
if (getVersion (version) != EXR_VERSION)
|
|
{
|
|
THROW (IEX_NAMESPACE::InputExc, "Cannot read "
|
|
"version " << getVersion (version) << " "
|
|
"image files. Current file format version "
|
|
"is " << EXR_VERSION << ".");
|
|
}
|
|
|
|
if (!supportsFlags (getFlags (version)))
|
|
{
|
|
THROW (IEX_NAMESPACE::InputExc, "The file format version number's flag field "
|
|
"contains unrecognized flags.");
|
|
}
|
|
}
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT
|