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Open Source Computer Vision Library
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113 lines
3.2 KiB
113 lines
3.2 KiB
12 years ago
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2002, 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_IMATHPLATFORM_H
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#define INCLUDED_IMATHPLATFORM_H
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//----------------------------------------------------------------------------
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//
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// ImathPlatform.h
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//
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// This file contains functions and constants which aren't
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// provided by the system libraries, compilers, or includes on
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// certain platforms.
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//
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//----------------------------------------------------------------------------
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#include <math.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifndef M_PI_2
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#define M_PI_2 1.57079632679489661923 // pi/2
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#endif
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//-----------------------------------------------------------------------------
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//
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// Some, but not all, C++ compilers support the C99 restrict
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// keyword or some variant of it, for example, __restrict.
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//
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//-----------------------------------------------------------------------------
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#if defined __GNUC__
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//
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// supports __restrict
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//
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#define IMATH_RESTRICT __restrict
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#elif defined (__INTEL_COMPILER) || \
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defined(__ICL) || \
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defined(__ICC) || \
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defined(__ECC)
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//
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// supports restrict
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//
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#define IMATH_RESTRICT restrict
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#elif defined __sgi
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//
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// supports restrict
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//
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#define IMATH_RESTRICT restrict
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#elif defined _MSC_VER
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//
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// supports __restrict
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//
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// #define IMATH_RESTRICT __restrict
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#define IMATH_RESTRICT
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#else
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//
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// restrict / __restrict not supported
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//
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#define IMATH_RESTRICT
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#endif
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#endif // INCLUDED_IMATHPLATFORM_H
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