encounter/SDL
1
0
Fork 0
mirror of https://github.com/encounter/SDL.git synced 2025-12-08 13:15:10 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add SDL_FLOATWORDORDER for older ARM toolchains

Browse Source
This commit is contained in:
Cameron Cawley
2022-05-03 23:21:10 +01:00
committed by Sam Lantinga
parent adac3bd1e2
commit b398a847be
4 changed files with 66 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
include/SDL_endian.h
View File

@@ -87,6 +87,28 @@ _m_prefetch(void *__P)
#endif /* __linux__ */
#endif /* !SDL_BYTEORDER */
#ifndef SDL_FLOATWORDORDER /* Not defined in SDL_config.h? */
/* predefs from newer gcc versions: */
#if defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__FLOAT_WORD_ORDER__)
#if (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__)
#define SDL_FLOATWORDORDER SDL_LIL_ENDIAN
#elif (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
#define SDL_FLOATWORDORDER SDL_BIG_ENDIAN
#else
#error Unsupported endianness
#endif /**/
#elif defined(__MAVERICK__)
/* For Maverick, float words are always little-endian. */
#define SDL_FLOATWORDORDER SDL_LIL_ENDIAN
#elif (defined(__arm__) || defined(__thumb__)) && !defined(__VFP_FP__) && !defined(__ARM_EABI__)
/* For FPA, float words are always big-endian. */
#define SDL_FLOATWORDORDER SDL_BIG_ENDIAN
#else
/* By default, assume that floats words follow the memory system mode. */
#define SDL_FLOATWORDORDER SDL_BYTEORDER
#endif /* __FLOAT_WORD_ORDER__ */
#endif /* !SDL_FLOATWORDORDER */
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */