33#if defined(_MSC_VER) && (_MSC_VER >= 1400)
37#ifndef __PRFCHWINTRIN_H
38#define __PRFCHWINTRIN_H
39static __inline__ void __attribute__((__always_inline__, __nodebug__))
42 __builtin_prefetch(__P, 0, 3 );
54#define SDL_LIL_ENDIAN 1234
55#define SDL_BIG_ENDIAN 4321
59#ifdef SDL_PLATFORM_LINUX
61#define SDL_BYTEORDER __BYTE_ORDER
62#elif defined(SDL_PLATFORM_OPENBSD) || defined(__DragonFly__)
64#define SDL_BYTEORDER BYTE_ORDER
65#elif defined(SDL_PLATFORM_FREEBSD) || defined(SDL_PLATFORM_NETBSD)
66#include <sys/endian.h>
67#define SDL_BYTEORDER BYTE_ORDER
69#elif defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__BYTE_ORDER__)
70#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
71#define SDL_BYTEORDER SDL_LIL_ENDIAN
72#elif (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
73#define SDL_BYTEORDER SDL_BIG_ENDIAN
75#error Unsupported endianness
78#if defined(__hppa__) || \
79 defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
80 (defined(__MIPS__) && defined(__MIPSEB__)) || \
81 defined(__ppc__) || defined(__POWERPC__) || defined(__powerpc__) || defined(__PPC__) || \
83#define SDL_BYTEORDER SDL_BIG_ENDIAN
85#define SDL_BYTEORDER SDL_LIL_ENDIAN
90#ifndef SDL_FLOATWORDORDER
92#if defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__FLOAT_WORD_ORDER__)
93#if (__FLOAT_WORD_ORDER__ == __ORDER_LITTLE_ENDIAN__)
94#define SDL_FLOATWORDORDER SDL_LIL_ENDIAN
95#elif (__FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
96#define SDL_FLOATWORDORDER SDL_BIG_ENDIAN
98#error Unsupported endianness
100#elif defined(__MAVERICK__)
102#define SDL_FLOATWORDORDER SDL_LIL_ENDIAN
103#elif (defined(__arm__) || defined(__thumb__)) && !defined(__VFP_FP__) && !defined(__ARM_EABI__)
105#define SDL_FLOATWORDORDER SDL_BIG_ENDIAN
108#define SDL_FLOATWORDORDER SDL_BYTEORDER
124#if defined(__GNUC__) || defined(__clang__)
125# define HAS_BUILTIN_BSWAP16 (SDL_HAS_BUILTIN(__builtin_bswap16)) || \
126 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
127# define HAS_BUILTIN_BSWAP32 (SDL_HAS_BUILTIN(__builtin_bswap32)) || \
128 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
129# define HAS_BUILTIN_BSWAP64 (SDL_HAS_BUILTIN(__builtin_bswap64)) || \
130 (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
133# define HAS_BROKEN_BSWAP (__GNUC__ == 2 && __GNUC_MINOR__ <= 95)
135# define HAS_BUILTIN_BSWAP16 0
136# define HAS_BUILTIN_BSWAP32 0
137# define HAS_BUILTIN_BSWAP64 0
138# define HAS_BROKEN_BSWAP 0
142#if HAS_BUILTIN_BSWAP16
143#define SDL_Swap16(x) __builtin_bswap16(x)
144#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
145#pragma intrinsic(_byteswap_ushort)
146#define SDL_Swap16(x) _byteswap_ushort(x)
147#elif defined(__i386__) && !HAS_BROKEN_BSWAP
150 __asm__(
"xchgb %b0,%h0":
"=q"(x):
"0"(x));
153#elif defined(__x86_64__)
156 __asm__(
"xchgb %b0,%h0":
"=Q"(x):
"0"(x));
159#elif (defined(__powerpc__) || defined(__ppc__))
164 __asm__(
"rlwimi %0,%2,8,16,23":
"=&r"(result):
"0"(x >> 8),
"r"(x));
167#elif (defined(__m68k__) && !defined(__mcoldfire__))
170 __asm__(
"rorw #8,%0":
"=d"(x):
"0"(x):
"cc");
173#elif defined(__WATCOMC__) && defined(__386__)
175#pragma aux SDL_Swap16 = \
187#if HAS_BUILTIN_BSWAP32
188#define SDL_Swap32(x) __builtin_bswap32(x)
189#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
190#pragma intrinsic(_byteswap_ulong)
191#define SDL_Swap32(x) _byteswap_ulong(x)
192#elif defined(__i386__) && !HAS_BROKEN_BSWAP
195 __asm__(
"bswap %0":
"=r"(x):
"0"(x));
198#elif defined(__x86_64__)
201 __asm__(
"bswapl %0":
"=r"(x):
"0"(x));
204#elif (defined(__powerpc__) || defined(__ppc__))
209 __asm__(
"rlwimi %0,%2,24,16,23":
"=&r"(result):
"0" (x>>24),
"r"(x));
210 __asm__(
"rlwimi %0,%2,8,8,15" :
"=&r"(result):
"0" (result),
"r"(x));
211 __asm__(
"rlwimi %0,%2,24,0,7" :
"=&r"(result):
"0" (result),
"r"(x));
214#elif (defined(__m68k__) && !defined(__mcoldfire__))
217 __asm__(
"rorw #8,%0\n\tswap %0\n\trorw #8,%0":
"=d"(x):
"0"(x):
"cc");
220#elif defined(__WATCOMC__) && defined(__386__)
222#pragma aux SDL_Swap32 = \
230 ((x >> 8) & 0x0000FF00) | (x >> 24)));
235#if HAS_BUILTIN_BSWAP64
236#define SDL_Swap64(x) __builtin_bswap64(x)
237#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
238#pragma intrinsic(_byteswap_uint64)
239#define SDL_Swap64(x) _byteswap_uint64(x)
240#elif defined(__i386__) && !HAS_BROKEN_BSWAP
250 __asm__(
"bswapl %0 ; bswapl %1 ; xchgl %0,%1"
251 :
"=r"(v.s.a),
"=r"(v.s.b)
252 :
"0" (v.s.a),
"1"(v.s.b));
255#elif defined(__x86_64__)
258 __asm__(
"bswapq %0":
"=r"(x):
"0"(x));
261#elif defined(__WATCOMC__) && defined(__386__)
263#pragma aux SDL_Swap64 = \
317#undef HAS_BROKEN_BSWAP
318#undef HAS_BUILTIN_BSWAP16
319#undef HAS_BUILTIN_BSWAP32
320#undef HAS_BUILTIN_BSWAP64
323#ifdef SDL_WIKI_DOCUMENTATION_SECTION
400#define SDL_SwapLE16(x) SwapOnlyIfNecessary(x)
414#define SDL_SwapLE32(x) SwapOnlyIfNecessary(x)
428#define SDL_SwapLE64(x) SwapOnlyIfNecessary(x)
442#define SDL_SwapFloatLE(x) SwapOnlyIfNecessary(x)
456#define SDL_SwapBE16(x) SwapOnlyIfNecessary(x)
470#define SDL_SwapBE32(x) SwapOnlyIfNecessary(x)
484#define SDL_SwapBE64(x) SwapOnlyIfNecessary(x)
498#define SDL_SwapFloatBE(x) SwapOnlyIfNecessary(x)
500#elif SDL_BYTEORDER == SDL_LIL_ENDIAN
501#define SDL_SwapLE16(x) (x)
502#define SDL_SwapLE32(x) (x)
503#define SDL_SwapLE64(x) (x)
504#define SDL_SwapFloatLE(x) (x)
505#define SDL_SwapBE16(x) SDL_Swap16(x)
506#define SDL_SwapBE32(x) SDL_Swap32(x)
507#define SDL_SwapBE64(x) SDL_Swap64(x)
508#define SDL_SwapFloatBE(x) SDL_SwapFloat(x)
510#define SDL_SwapLE16(x) SDL_Swap16(x)
511#define SDL_SwapLE32(x) SDL_Swap32(x)
512#define SDL_SwapLE64(x) SDL_Swap64(x)
513#define SDL_SwapFloatLE(x) SDL_SwapFloat(x)
514#define SDL_SwapBE16(x) (x)
515#define SDL_SwapBE32(x) (x)
516#define SDL_SwapBE64(x) (x)
517#define SDL_SwapFloatBE(x) (x)
SDL_FORCE_INLINE Uint32 SDL_Swap32(Uint32 x)
SDL_FORCE_INLINE Uint16 SDL_Swap16(Uint16 x)
SDL_FORCE_INLINE float SDL_SwapFloat(float x)
SDL_FORCE_INLINE Uint64 SDL_Swap64(Uint64 x)
#define SDL_static_cast(type, expression)