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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gmisc/sys_options.h
* @brief GMISC - Miscellaneous Routines options header file.
*
* @addtogroup GMISC
* @{
*/
#ifndef _GMISC_OPTIONS_H
#define _GMISC_OPTIONS_H
/**
* @name GMISC Functionality to be included
* @{
*/
/**
* @brief Include array operation functions
* @details Defaults to FALSE
*/
#ifndef GMISC_NEED_ARRAYOPS
#define GMISC_NEED_ARRAYOPS FALSE
#endif
/**
* @brief Include fast floating point trig functions (fsin, fcos)
* @details Defaults to FALSE
*/
#ifndef GMISC_NEED_FASTTRIG
#define GMISC_NEED_FASTTRIG FALSE
#endif
/**
* @brief Include fast fixed point trig functions (ffsin, ffcos)
* @details Defaults to FALSE
*/
#ifndef GMISC_NEED_FIXEDTRIG
#define GMISC_NEED_FIXEDTRIG FALSE
#endif
/**
* @brief Include fast inverse square root (x^-1/2)
* @details Defaults to FALSE
*/
#ifndef GMISC_NEED_INVSQRT
#define GMISC_NEED_INVSQRT FALSE
#endif
/**
* @}
*
* @name GMISC Optional Parameters
* @{
*/
/**
* @brief Modifies the @p invsqrt() function to assume a different integer to floating point endianness.
* @note Normally the floating point format and the integer format have
* the same endianness. Unfortunately there are some strange
* processors that don't eg. some very early ARM devices.
* For those where the endianness doesn't match you can fix it by
* defining GMISC_INVSQRT_MIXED_ENDIAN.
* @note This still assumes the processor is using an ieee floating point format.
*
* If you have a software floating point that uses a non-standard
* floating point format (or very strange hardware) then define
* GMISC_INVSQRT_REAL_SLOW and it will do it the hard way.
*/
#ifndef GMISC_INVSQRT_MIXED_ENDIAN
#define GMISC_INVSQRT_MIXED_ENDIAN FALSE
#endif
/**
* @brief Modifies the @p invsqrt() function to do things the long slow way.
* @note This causes the @p invsqrt() function to work regardless of the
* processor floating point format.
* @note This makes the @p invsqrt() function very slow.
*/
#ifndef GMISC_INVSQRT_REAL_SLOW
#define GMISC_INVSQRT_REAL_SLOW FALSE
#endif
/** @} */
#endif /* _GMISC_OPTIONS_H */
/** @} */
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