| 131 |
|
#error "Unsupported size of pointer" |
| 132 |
|
#endif |
| 133 |
|
|
| 134 |
< |
// Helper functions to byteswap data |
| 134 |
> |
/** |
| 135 |
> |
* Helper functions to byteswap data |
| 136 |
> |
**/ |
| 137 |
> |
|
| 138 |
> |
#if defined(__GNUC__) |
| 139 |
> |
#if defined(__x86_64__) |
| 140 |
> |
// Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h> |
| 141 |
> |
#define opt_bswap_32 do_opt_bswap_32 |
| 142 |
> |
static inline uint32 do_opt_bswap_32(uint32 x) |
| 143 |
> |
{ |
| 144 |
> |
uint32 v; |
| 145 |
> |
__asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x)); |
| 146 |
> |
return v; |
| 147 |
> |
} |
| 148 |
> |
#endif |
| 149 |
> |
#endif |
| 150 |
> |
|
| 151 |
|
#ifdef HAVE_BYTESWAP_H |
| 152 |
|
#include <byteswap.h> |
| 153 |
|
#endif |
| 154 |
|
|
| 155 |
+ |
#ifdef opt_bswap_16 |
| 156 |
+ |
#undef bswap_16 |
| 157 |
+ |
#define bswap_16 opt_bswap_16 |
| 158 |
+ |
#endif |
| 159 |
|
#ifndef bswap_16 |
| 160 |
|
#define bswap_16 generic_bswap_16 |
| 161 |
|
#endif |
| 165 |
|
return ((x & 0xff) << 8) | ((x >> 8) & 0xff); |
| 166 |
|
} |
| 167 |
|
|
| 168 |
+ |
#ifdef opt_bswap_32 |
| 169 |
+ |
#undef bswap_32 |
| 170 |
+ |
#define bswap_32 opt_bswap_32 |
| 171 |
+ |
#endif |
| 172 |
|
#ifndef bswap_32 |
| 173 |
|
#define bswap_32 generic_bswap_32 |
| 174 |
|
#endif |
| 181 |
|
((x & 0x000000ff) << 24) ); |
| 182 |
|
} |
| 183 |
|
|
| 184 |
+ |
#ifdef opt_bswap_64 |
| 185 |
+ |
#undef bswap_64 |
| 186 |
+ |
#define bswap_64 opt_bswap_64 |
| 187 |
+ |
#endif |
| 188 |
|
#ifndef bswap_64 |
| 189 |
|
#define bswap_64 generic_bswap_64 |
| 190 |
|
#endif |
