From 7369e2eb730a0eaf5c240e24bd37c7e944097399 Mon Sep 17 00:00:00 2001 From: "Ryan C. Gordon" Date: Thu, 24 Aug 2006 12:49:59 +0000 Subject: [PATCH] Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. --- include/SDL_endian.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/SDL_endian.h b/include/SDL_endian.h index f3de7b2b8..28ff0ae59 100644 --- a/include/SDL_endian.h +++ b/include/SDL_endian.h @@ -192,21 +192,35 @@ SDL_Swap64(Uint64 x) #endif /* SDL_HAS_64BIT_TYPE */ +static __inline__ float +SDL_SwapFloat(float x) +{ + union { float f; Uint32 ui32; } swapper; + swapper.f = x; + swapper.ui32 = SDL_Swap32(swapper.ui32); + return swapper.f; +} + + /* Byteswap item from the specified endianness to the native endianness */ #if SDL_BYTEORDER == SDL_LIL_ENDIAN #define SDL_SwapLE16(X) (X) #define SDL_SwapLE32(X) (X) #define SDL_SwapLE64(X) (X) +#define SDL_SwapFloatLE(X) (X) #define SDL_SwapBE16(X) SDL_Swap16(X) #define SDL_SwapBE32(X) SDL_Swap32(X) #define SDL_SwapBE64(X) SDL_Swap64(X) +#define SDL_SwapFloatBE(X) SDL_SwapFloat(X) #else #define SDL_SwapLE16(X) SDL_Swap16(X) #define SDL_SwapLE32(X) SDL_Swap32(X) #define SDL_SwapLE64(X) SDL_Swap64(X) +#define SDL_SwapFloatLE(X) SDL_SwapFloat(X) #define SDL_SwapBE16(X) (X) #define SDL_SwapBE32(X) (X) #define SDL_SwapBE64(X) (X) +#define SDL_SwapFloatBE(X) (X) #endif /* Ends C function definitions when using C++ */