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Declare and use __builtin_bswapXX.

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This commit is contained in:
Lev 2017-01-25 17:11:11 +05:00
parent e1fa1ed090
commit 141c867810
2 changed files with 24 additions and 14 deletions
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27
rehlds/common/mathlib.h
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@ -65,32 +65,31 @@ typedef union DLONG_u
#endif
template <typename T>
inline T min(T a, T b) {
inline T min(T a, T b)
{
return (a < b) ? a : b;
}
template <typename T>
inline T max(T a, T b) {
inline T max(T a, T b)
{
return (a < b) ? b : a;
}
template <typename T>
inline T clamp(T a, T min, T max) {
inline T clamp(T a, T min, T max)
{
return (a > max) ? max : (a < min) ? min : a;
}
template <typename T>
inline T bswap(T s) {
switch (sizeof(T)) {
#ifdef _WIN32
case 2: {auto res = _byteswap_ushort(*(uint16 *)&s); return *(T *)&res;}
case 4: {auto res = _byteswap_ulong(*(uint32 *)(&s)); return *(T *)&res;}
case 8: {auto res = _byteswap_uint64(*(uint64 *)&s); return *(T *)&res;}
#else
case 2: {auto res = _bswap16(*(uint16 *)&s); return *(T *)&res;}
case 4: {auto res = _bswap(*(uint32 *)&s); return *(T *)&res;}
case 8: {auto res = _bswap64(*(uint64 *)&s); return *(T *)&res;}
#endif
inline T bswap(T s)
{
switch (sizeof(T))
{
case 2: {auto res = __builtin_bswap16(*(uint16 *)&s); return *(T *)&res; }
case 4: {auto res = __builtin_bswap32(*(uint32 *)&s); return *(T *)&res; }
case 8: {auto res = __builtin_bswap64(*(uint64 *)&s); return *(T *)&res; }
default: return s;
}
}

11
rehlds/public/rehlds/osconfig.h
View File

@ -92,6 +92,7 @@
#include <smmintrin.h>
#include <xmmintrin.h>
#ifdef _WIN32 // WINDOWS
#define _CRT_SECURE_NO_WARNINGS
#define WIN32_LEAN_AND_MEAN
@ -106,6 +107,10 @@
#define NORETURN __declspec(noreturn)
#define FORCE_STACK_ALIGN
#define __builtin_bswap16 _byteswap_ushort
#define __builtin_bswap32 _byteswap_ulong
#define __builtin_bswap64 _byteswap_uint64
//inline bool SOCKET_FIONBIO(SOCKET s, int m) { return (ioctlsocket(s, FIONBIO, (u_long*)&m) == 0); }
//inline int SOCKET_MSGLEN(SOCKET s, u_long& r) { return ioctlsocket(s, FIONREAD, (u_long*)&r); }
typedef int socklen_t;
@ -152,6 +157,12 @@
#define NORETURN __attribute__((noreturn))
#define FORCE_STACK_ALIGN __attribute__((force_align_arg_pointer))
#if defined __INTEL_COMPILER
#define __builtin_bswap16 _bswap16
#define __builtin_bswap32 _bswap
#define __builtin_bswap64 _bswap64
#endif // __INTEL_COMPILER
//inline bool SOCKET_FIONBIO(SOCKET s, int m) { return (ioctl(s, FIONBIO, (int*)&m) == 0); }
//inline int SOCKET_MSGLEN(SOCKET s, u_long& r) { return ioctl(s, FIONREAD, (int*)&r); }
typedef int SOCKET;