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878af7ada8
3rdparty: update OpenEXR 2.3.0 (#14725) * openexr 2.2.1 * openexr 2.3.0 * openexr: build fixes * openexr: build dwa tables on-demand
116 lines
4.4 KiB
C++
116 lines
4.4 KiB
C++
///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2012, 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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#ifndef INCLUDED_IMATHNAMESPACE_H
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#define INCLUDED_IMATHNAMESPACE_H
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//
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// The purpose of this file is to make it possible to specify an
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// IMATH_INTERNAL_NAMESPACE as a preprocessor definition and have all of the
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// Imath symbols defined within that namespace rather than the standard
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// Imath namespace. Those symbols are made available to client code through
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// the IMATH_NAMESPACE in addition to the IMATH_INTERNAL_NAMESPACE.
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//
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// To ensure source code compatibility, the IMATH_NAMESPACE defaults to Imath
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// and then "using namespace IMATH_INTERNAL_NAMESPACE;" brings all of the
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// declarations from the IMATH_INTERNAL_NAMESPACE into the IMATH_NAMESPACE.
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// This means that client code can continue to use syntax like Imath::V3f,
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// but at link time it will resolve to a mangled symbol based on the
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// IMATH_INTERNAL_NAMESPACE.
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//
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// As an example, if one needed to build against a newer version of Imath and
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// have it run alongside an older version in the same application, it is now
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// possible to use an internal namespace to prevent collisions between the
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// older versions of Imath symbols and the newer ones. To do this, the
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// following could be defined at build time:
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//
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// IMATH_INTERNAL_NAMESPACE = Imath_v2
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//
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// This means that declarations inside Imath headers look like this (after
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// the preprocessor has done its work):
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//
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// namespace Imath_v2 {
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// ...
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// class declarations
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// ...
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// }
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//
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// namespace Imath {
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// using namespace Imath_v2;
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// }
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//
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//
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// Open Source version of this file pulls in the IlmBaseConfig.h file
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// for the configure time options.
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//
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#include "IlmBaseConfig.h"
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#ifndef IMATH_NAMESPACE
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#define IMATH_NAMESPACE Imath
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#endif
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#ifndef IMATH_INTERNAL_NAMESPACE
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#define IMATH_INTERNAL_NAMESPACE IMATH_NAMESPACE
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#endif
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//
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// We need to be sure that we import the internal namespace into the public one.
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// To do this, we use the small bit of code below which initially defines
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// IMATH_INTERNAL_NAMESPACE (so it can be referenced) and then defines
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// IMATH_NAMESPACE and pulls the internal symbols into the public
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// namespace.
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//
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namespace IMATH_INTERNAL_NAMESPACE {}
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namespace IMATH_NAMESPACE {
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using namespace IMATH_INTERNAL_NAMESPACE;
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}
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//
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// There are identical pairs of HEADER/SOURCE ENTER/EXIT macros so that
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// future extension to the namespace mechanism is possible without changing
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// project source code.
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//
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#define IMATH_INTERNAL_NAMESPACE_HEADER_ENTER namespace IMATH_INTERNAL_NAMESPACE {
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#define IMATH_INTERNAL_NAMESPACE_HEADER_EXIT }
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#define IMATH_INTERNAL_NAMESPACE_SOURCE_ENTER namespace IMATH_INTERNAL_NAMESPACE {
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#define IMATH_INTERNAL_NAMESPACE_SOURCE_EXIT }
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#endif /* INCLUDED_IMATHNAMESPACE_H */
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