/usr/include/Field3D/SpiMathLib.h is in libfield3d-dev 1.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (c) 2009 Sony Pictures Imageworks Inc
*
* 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 Sony Pictures Imageworks 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_Field3D_SpiMathLib_H_
#define _INCLUDED_Field3D_SpiMathLib_H_
#include <OpenEXR/half.h>
#include <OpenEXR/ImathHalfLimits.h>
#include <OpenEXR/ImathBox.h>
#include <OpenEXR/ImathBoxAlgo.h>
#include <OpenEXR/ImathColor.h>
#include <OpenEXR/ImathMatrix.h>
#include <OpenEXR/ImathVec.h>
#include <OpenEXR/ImathRoots.h>
#include <OpenEXR/ImathMatrixAlgo.h>
#include <OpenEXR/ImathRandom.h>
#include <OpenEXR/ImathPlane.h>
#include <OpenEXR/ImathQuat.h>
//----------------------------------------------------------------------------//
#include "ns.h"
FIELD3D_NAMESPACE_OPEN
#ifndef OPENEXR_VERSION_NS
typedef ::half half;
typedef Imath::V2i V2i;
typedef Imath::V2f V2f;
typedef Imath::V2d V2d;
typedef Imath::C3f C3f;
typedef Imath::Color3<half> C3h;
typedef Imath::C4f C4f;
typedef Imath::V3i V3i;
typedef Imath::Vec3<half> V3h;
typedef Imath::V3f V3f;
typedef Imath::V3d V3d;
typedef Imath::Box2f Box2f;
typedef Imath::Box2i Box2i;
typedef Imath::Box3i Box3i;
typedef Imath::Box3f Box3f;
typedef Imath::Box3d Box3d;
typedef Imath::M33f M33f;
typedef Imath::M44f M44f;
typedef Imath::M44d M44d;
typedef Imath::Plane3d Plane3d;
typedef Imath::Line3d Line3d;
typedef Imath::Quatd Quatd;
#define FIELD3D_VEC3_T Imath::Vec3
#define FIELD3D_CLIP Imath::clip
#define FIELD3D_LERP Imath::lerp
#define FIELD3D_LERPFACTOR Imath::lerpfactor
#define FIELD3D_EXTRACT_SHRT Imath::extractSHRT
#define FIELD3D_RAND48 Imath::Rand48
#define FIELD3D_RAND32 Imath::Rand32
#define FIELD3D_SOLIDSPHERERAND Imath::solidSphereRand
#define FIELD3D_HALF_LIMITS Imath::limits<SPI::Field3D::half>
// default random number generator
#define FIELD3D_RAND Imath::Rand48
#else
typedef SPI::OpenEXR::half half;
typedef SPI::OpenEXR::Imath::V2i V2i;
typedef SPI::OpenEXR::Imath::V2f V2f;
typedef SPI::OpenEXR::Imath::V2d V2d;
typedef SPI::OpenEXR::Imath::C3f C3f;
typedef SPI::OpenEXR::Imath::C4f C4f;
typedef SPI::OpenEXR::Imath::Color3<SPI::OpenEXR::half> C3h;
typedef SPI::OpenEXR::Imath::V3i V3i;
typedef SPI::OpenEXR::Imath::Vec3<SPI::OpenEXR::half> V3h;
typedef SPI::OpenEXR::Imath::V3f V3f;
typedef SPI::OpenEXR::Imath::V3d V3d;
typedef SPI::OpenEXR::Imath::Box2i Box2i;
typedef SPI::OpenEXR::Imath::Box2f Box2f;
typedef SPI::OpenEXR::Imath::Box3i Box3i;
typedef SPI::OpenEXR::Imath::Box3f Box3f;
typedef SPI::OpenEXR::Imath::Box3d Box3d;
typedef SPI::OpenEXR::Imath::M33f M33f;
typedef SPI::OpenEXR::Imath::M44f M44f;
typedef SPI::OpenEXR::Imath::M44d M44d;
typedef SPI::OpenEXR::Imath::Plane3d Plane3d;
typedef SPI::OpenEXR::Imath::Line3d Line3d;
typedef SPI::OpenEXR::Imath::Quatd Quatd;
#define FIELD3D_VEC3_T SPI::OpenEXR::Imath::Vec3
#define FIELD3D_CLIP SPI::OpenEXR::Imath::clip
#define FIELD3D_LERP SPI::OpenEXR::Imath::lerp
#define FIELD3D_LERPFACTOR SPI::OpenEXR::Imath::lerpfactor
#define FIELD3D_EXTRACT_SHRT SPI::OpenEXR::Imath::extractSHRT
// default random number generator
#define FIELD3D_RAND SPI::OpenEXR::Imath::Rand48
#define FIELD3D_RAND48 SPI::OpenEXR::Imath::Rand48
#define FIELD3D_RAND32 SPI::OpenEXR::Imath::Rand32
#define FIELD3D_SOLIDSPHERERAND SPI::OpenEXR::Imath::solidSphereRand
#define FIELD3D_HALF_LIMITS SPI::OpenEXR::Imath::limits<SPI::OpenEXR::half>
//----------------------------------------------------------------------------//
//----------------------------------------------------------------------------//
#endif // OPENEXR_VERSION
FIELD3D_NAMESPACE_HEADER_CLOSE
#endif // Include guard
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