--- include/SDL_endian.h | 155 ++------------------------------------------------- 1 file changed, 7 insertions(+), 148 deletions(-) Index: SDL2-2.0.12/include/SDL_endian.h =================================================================== --- SDL2-2.0.12.orig/include/SDL_endian.h +++ SDL2-2.0.12/include/SDL_endian.h @@ -34,32 +34,17 @@ * \name The two types of endianness */ /* @{ */ -#define SDL_LIL_ENDIAN 1234 -#define SDL_BIG_ENDIAN 4321 +#define SDL_LIL_ENDIAN __ORDER_LITTLE_ENDIAN__ +#define SDL_BIG_ENDIAN __ORDER_BIG_ENDIAN__ /* @} */ #ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */ -#ifdef __linux__ -#include -#define SDL_BYTEORDER __BYTE_ORDER -#elif defined(__OpenBSD__) -#include -#define SDL_BYTEORDER BYTE_ORDER -#else -#if defined(__hppa__) || \ - defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \ - (defined(__MIPS__) && defined(__MIPSEB__)) || \ - defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \ - defined(__sparc__) -#define SDL_BYTEORDER SDL_BIG_ENDIAN -#else -#define SDL_BYTEORDER SDL_LIL_ENDIAN -#endif -#endif /* __linux__ */ +#define SDL_BYTEORDER __BYTE_ORDER__ #endif /* !SDL_BYTEORDER */ #include "begin_code.h" +#include /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { @@ -68,149 +53,23 @@ extern "C" { /** * \file SDL_endian.h */ -#if defined(__GNUC__) && defined(__i386__) && \ - !(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */) SDL_FORCE_INLINE Uint16 SDL_Swap16(Uint16 x) { - __asm__("xchgb %b0,%h0": "=q"(x):"0"(x)); - return x; + return bswap_16(x); } -#elif defined(__GNUC__) && defined(__x86_64__) -SDL_FORCE_INLINE Uint16 -SDL_Swap16(Uint16 x) -{ - __asm__("xchgb %b0,%h0": "=Q"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) -SDL_FORCE_INLINE Uint16 -SDL_Swap16(Uint16 x) -{ - int result; - __asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x)); - return (Uint16)result; -} -#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__) -SDL_FORCE_INLINE Uint16 -SDL_Swap16(Uint16 x) -{ - __asm__("rorw #8,%0": "=d"(x): "0"(x):"cc"); - return x; -} -#elif defined(__WATCOMC__) && defined(__386__) -extern _inline Uint16 SDL_Swap16(Uint16); -#pragma aux SDL_Swap16 = \ - "xchg al, ah" \ - parm [ax] \ - modify [ax]; -#else -SDL_FORCE_INLINE Uint16 -SDL_Swap16(Uint16 x) -{ - return SDL_static_cast(Uint16, ((x << 8) | (x >> 8))); -} -#endif - -#if defined(__GNUC__) && defined(__i386__) SDL_FORCE_INLINE Uint32 SDL_Swap32(Uint32 x) { - __asm__("bswap %0": "=r"(x):"0"(x)); - return x; + return bswap_32(x); } -#elif defined(__GNUC__) && defined(__x86_64__) -SDL_FORCE_INLINE Uint32 -SDL_Swap32(Uint32 x) -{ - __asm__("bswapl %0": "=r"(x):"0"(x)); - return x; -} -#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) -SDL_FORCE_INLINE Uint32 -SDL_Swap32(Uint32 x) -{ - Uint32 result; - - __asm__("rlwimi %0,%2,24,16,23": "=&r"(result):"0"(x >> 24), "r"(x)); - __asm__("rlwimi %0,%2,8,8,15": "=&r"(result):"0"(result), "r"(x)); - __asm__("rlwimi %0,%2,24,0,7": "=&r"(result):"0"(result), "r"(x)); - return result; -} -#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__) -SDL_FORCE_INLINE Uint32 -SDL_Swap32(Uint32 x) -{ - __asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc"); - return x; -} -#elif defined(__WATCOMC__) && defined(__386__) -extern _inline Uint32 SDL_Swap32(Uint32); -#ifndef __SW_3 /* 486+ */ -#pragma aux SDL_Swap32 = \ - "bswap eax" \ - parm [eax] \ - modify [eax]; -#else /* 386-only */ -#pragma aux SDL_Swap32 = \ - "xchg al, ah" \ - "ror eax, 16" \ - "xchg al, ah" \ - parm [eax] \ - modify [eax]; -#endif -#else -SDL_FORCE_INLINE Uint32 -SDL_Swap32(Uint32 x) -{ - return SDL_static_cast(Uint32, ((x << 24) | ((x << 8) & 0x00FF0000) | - ((x >> 8) & 0x0000FF00) | (x >> 24))); -} -#endif -#if defined(__GNUC__) && defined(__i386__) -SDL_FORCE_INLINE Uint64 -SDL_Swap64(Uint64 x) -{ - union - { - struct - { - Uint32 a, b; - } s; - Uint64 u; - } v; - v.u = x; - __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1": "=r"(v.s.a), "=r"(v.s.b):"0"(v.s.a), - "1"(v.s. - b)); - return v.u; -} -#elif defined(__GNUC__) && defined(__x86_64__) -SDL_FORCE_INLINE Uint64 -SDL_Swap64(Uint64 x) -{ - __asm__("bswapq %0": "=r"(x):"0"(x)); - return x; -} -#else SDL_FORCE_INLINE Uint64 SDL_Swap64(Uint64 x) { - Uint32 hi, lo; - - /* Separate into high and low 32-bit values and swap them */ - lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF); - x >>= 32; - hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF); - x = SDL_Swap32(lo); - x <<= 32; - x |= SDL_Swap32(hi); - return (x); + return bswap_64(x); } -#endif - SDL_FORCE_INLINE float SDL_SwapFloat(float x)