NouVeL/ADVect/ext/bgfx/bimg/3rdparty/iqa/include/iqa_os.h
2022-08-18 12:17:43 -04:00

68 lines
2.4 KiB
C

/*
* Copyright (c) 2011, Tom Distler (http://tdistler.com)
* All rights reserved.
*
* The BSD License
*
* 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 the tdistler.com 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 HOLDER 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 _OS_H_
#define _OS_H_
/* Microsoft tends to implement features early, but they have a high legacy
* cost because they won't break existing implementations. As such, certain
* features we take for granted on other platforms (like C99) aren't fully
* implemented. This file is meant to rectify that.
*/
#ifdef WIN32
#include <windows.h>
#include <math.h>
#define IQA_INLINE __inline
#ifndef INFINITY
#define INFINITY (float)HUGE_VAL /**< Defined in C99 (Windows is C89) */
#endif /*INFINITY*/
#ifndef NAN
static const unsigned long __nan[2] = {0xffffffff, 0x7fffffff};
#define NAN (*(const float *) __nan) /**< Defined in C99 (Windows is C99) */
#endif
#define IQA_EXPORT __declspec(dllexport)
#else /* !Windows */
#define IQA_INLINE inline
#define IQA_EXPORT
#endif
#endif /* _OS_H_ */