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
61#define SDL_BYTEORDER __BYTE_ORDER
62#elif defined(__OpenBSD__) || defined(__DragonFly__)
64#define SDL_BYTEORDER BYTE_ORDER
65#elif defined(__FreeBSD__) || defined(__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
144#if HAS_BUILTIN_BSWAP16
145#define SDL_Swap16(x) __builtin_bswap16(x)
146#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
147#pragma intrinsic(_byteswap_ushort)
148#define SDL_Swap16(x) _byteswap_ushort(x)
149#elif defined(__i386__) && !HAS_BROKEN_BSWAP
153 __asm__(
"xchgb %b0,%h0":
"=q"(x):
"0"(x));
156#elif defined(__x86_64__)
160 __asm__(
"xchgb %b0,%h0":
"=Q"(x):
"0"(x));
163#elif (defined(__powerpc__) || defined(__ppc__))
169 __asm__(
"rlwimi %0,%2,8,16,23":
"=&r"(result):
"0"(x >> 8),
"r"(x));
172#elif (defined(__m68k__) && !defined(__mcoldfire__))
176 __asm__(
"rorw #8,%0":
"=d"(x):
"0"(x):
"cc");
179#elif defined(__WATCOMC__) && defined(__386__)
181#pragma aux SDL_Swap16 = \
196#if HAS_BUILTIN_BSWAP32
197#define SDL_Swap32(x) __builtin_bswap32(x)
198#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
199#pragma intrinsic(_byteswap_ulong)
200#define SDL_Swap32(x) _byteswap_ulong(x)
201#elif defined(__i386__) && !HAS_BROKEN_BSWAP
205 __asm__(
"bswap %0":
"=r"(x):
"0"(x));
208#elif defined(__x86_64__)
212 __asm__(
"bswapl %0":
"=r"(x):
"0"(x));
215#elif (defined(__powerpc__) || defined(__ppc__))
221 __asm__(
"rlwimi %0,%2,24,16,23":
"=&r"(result):
"0" (x>>24),
"r"(x));
222 __asm__(
"rlwimi %0,%2,8,8,15" :
"=&r"(result):
"0" (result),
"r"(x));
223 __asm__(
"rlwimi %0,%2,24,0,7" :
"=&r"(result):
"0" (result),
"r"(x));
226#elif (defined(__m68k__) && !defined(__mcoldfire__))
230 __asm__(
"rorw #8,%0\n\tswap %0\n\trorw #8,%0":
"=d"(x):
"0"(x):
"cc");
233#elif defined(__WATCOMC__) && defined(__386__)
235#pragma aux SDL_Swap32 = \
244 ((x >> 8) & 0x0000FF00) | (x >> 24)));
251#if HAS_BUILTIN_BSWAP64
252#define SDL_Swap64(x) __builtin_bswap64(x)
253#elif (defined(_MSC_VER) && (_MSC_VER >= 1400)) && !defined(__ICL)
254#pragma intrinsic(_byteswap_uint64)
255#define SDL_Swap64(x) _byteswap_uint64(x)
256#elif defined(__i386__) && !HAS_BROKEN_BSWAP
267 __asm__(
"bswapl %0 ; bswapl %1 ; xchgl %0,%1"
268 :
"=r"(v.s.a),
"=r"(v.s.b)
269 :
"0" (v.s.a),
"1"(v.s.b));
272#elif defined(__x86_64__)
276 __asm__(
"bswapq %0":
"=r"(x):
"0"(x));
279#elif defined(__WATCOMC__) && defined(__386__)
281#pragma aux SDL_Swap64 = \
321#undef HAS_BROKEN_BSWAP
322#undef HAS_BUILTIN_BSWAP16
323#undef HAS_BUILTIN_BSWAP32
324#undef HAS_BUILTIN_BSWAP64
371#if SDL_BYTEORDER == SDL_LIL_ENDIAN
372#define SDL_SwapLE16(X) (X)
373#define SDL_SwapLE32(X) (X)
374#define SDL_SwapLE64(X) (X)
375#define SDL_SwapFloatLE(X) (X)
376#define SDL_SwapBE16(X) SDL_Swap16(X)
377#define SDL_SwapBE32(X) SDL_Swap32(X)
378#define SDL_SwapBE64(X) SDL_Swap64(X)
379#define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
381#define SDL_SwapLE16(X) SDL_Swap16(X)
382#define SDL_SwapLE32(X) SDL_Swap32(X)
383#define SDL_SwapLE64(X) SDL_Swap64(X)
384#define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
385#define SDL_SwapBE16(X) (X)
386#define SDL_SwapBE32(X) (X)
387#define SDL_SwapBE64(X) (X)
388#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)
This is a general header that includes C language support.
#define SDL_static_cast(type, expression)