33 #if defined(_MSC_VER) && (_MSC_VER >= 1400)
37 #ifndef __PRFCHWINTRIN_H
38 #define __PRFCHWINTRIN_H
39 static __inline__ void __attribute__((__always_inline__, __nodebug__))
40 _m_prefetch(
void *__P)
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
141 #if HAS_BUILTIN_BSWAP16
142 #define SDL_Swap16(x) __builtin_bswap16(x)
143 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
144 #pragma intrinsic(_byteswap_ushort)
145 #define SDL_Swap16(x) _byteswap_ushort(x)
146 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
150 __asm__(
"xchgb %b0,%h0":
"=q"(x):
"0"(x));
153 #elif defined(__x86_64__)
157 __asm__(
"xchgb %b0,%h0":
"=Q"(x):
"0"(x));
160 #elif (defined(__powerpc__) || defined(__ppc__))
166 __asm__(
"rlwimi %0,%2,8,16,23":
"=&r"(result):
"0"(x >> 8),
"r"(x));
169 #elif (defined(__m68k__) && !defined(__mcoldfire__))
173 __asm__(
"rorw #8,%0":
"=d"(x):
"0"(x):
"cc");
176 #elif defined(__WATCOMC__) && defined(__386__)
178 #pragma aux SDL_Swap16 = \
190 #if HAS_BUILTIN_BSWAP32
191 #define SDL_Swap32(x) __builtin_bswap32(x)
192 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
193 #pragma intrinsic(_byteswap_ulong)
194 #define SDL_Swap32(x) _byteswap_ulong(x)
195 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
199 __asm__(
"bswap %0":
"=r"(x):
"0"(x));
202 #elif defined(__x86_64__)
206 __asm__(
"bswapl %0":
"=r"(x):
"0"(x));
209 #elif (defined(__powerpc__) || defined(__ppc__))
215 __asm__(
"rlwimi %0,%2,24,16,23":
"=&r"(result):
"0" (x>>24),
"r"(x));
216 __asm__(
"rlwimi %0,%2,8,8,15" :
"=&r"(result):
"0" (result),
"r"(x));
217 __asm__(
"rlwimi %0,%2,24,0,7" :
"=&r"(result):
"0" (result),
"r"(x));
220 #elif (defined(__m68k__) && !defined(__mcoldfire__))
224 __asm__(
"rorw #8,%0\n\tswap %0\n\trorw #8,%0":
"=d"(x):
"0"(x):
"cc");
227 #elif defined(__WATCOMC__) && defined(__386__)
229 #pragma aux SDL_Swap32 = \
238 ((x >> 8) & 0x0000FF00) | (x >> 24)));
242 #if HAS_BUILTIN_BSWAP64
243 #define SDL_Swap64(x) __builtin_bswap64(x)
244 #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
245 #pragma intrinsic(_byteswap_uint64)
246 #define SDL_Swap64(x) _byteswap_uint64(x)
247 #elif defined(__i386__) && !HAS_BROKEN_BSWAP
258 __asm__(
"bswapl %0 ; bswapl %1 ; xchgl %0,%1"
259 :
"=r"(v.s.a),
"=r"(v.s.b)
260 :
"0" (v.s.a),
"1"(v.s.b));
263 #elif defined(__x86_64__)
267 __asm__(
"bswapq %0":
"=r"(x):
"0"(x));
270 #elif defined(__WATCOMC__) && defined(__386__)
272 #pragma aux SDL_Swap64 = \
309 #undef HAS_BROKEN_BSWAP
310 #undef HAS_BUILTIN_BSWAP16
311 #undef HAS_BUILTIN_BSWAP32
312 #undef HAS_BUILTIN_BSWAP64
319 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
320 #define SDL_SwapLE16(X) (X)
321 #define SDL_SwapLE32(X) (X)
322 #define SDL_SwapLE64(X) (X)
323 #define SDL_SwapFloatLE(X) (X)
324 #define SDL_SwapBE16(X) SDL_Swap16(X)
325 #define SDL_SwapBE32(X) SDL_Swap32(X)
326 #define SDL_SwapBE64(X) SDL_Swap64(X)
327 #define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
329 #define SDL_SwapLE16(X) SDL_Swap16(X)
330 #define SDL_SwapLE32(X) SDL_Swap32(X)
331 #define SDL_SwapLE64(X) SDL_Swap64(X)
332 #define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
333 #define SDL_SwapBE16(X) (X)
334 #define SDL_SwapBE32(X) (X)
335 #define SDL_SwapBE64(X) (X)
336 #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)