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