mirror of
https://github.com/Karaka-Management/cOMS.git
synced 2026-01-11 11:18:40 +00:00
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/**
|
|
* Jingga
|
|
*
|
|
* @copyright Jingga
|
|
* @license OMS License 2.0
|
|
* @version 1.0.0
|
|
* @link https://jingga.app
|
|
*/
|
|
#ifndef TOS_UTILS_ENDIAN_H
|
|
#define TOS_UTILS_ENDIAN_H
|
|
|
|
#include "../stdlib/Types.h"
|
|
|
|
// Automatically perform endian swap if necessary
|
|
// If we are on little endian (e.g. Win32) we swap big endian data but not little endian
|
|
#if _WIN32 || __LITTLE_ENDIAN
|
|
#define SWAP_ENDIAN_LITTLE(val) (val)
|
|
#define SWAP_ENDIAN_BIG(val) endian_swap(val)
|
|
#else
|
|
#define SWAP_ENDIAN_LITTLE(val) endian_swap(val)
|
|
#define SWAP_ENDIAN_BIG(val) (val)
|
|
#endif
|
|
|
|
inline
|
|
bool is_little_endian()
|
|
{
|
|
uint32 num = 1;
|
|
return ((int32) (*(char *) & num)) == 1;
|
|
}
|
|
|
|
inline
|
|
uint16 endian_swap(const uint16* val)
|
|
{
|
|
uint16 v = *val;
|
|
return ((v << 8) | (v >> 8));
|
|
}
|
|
|
|
inline
|
|
int16 endian_swap(const int16* val)
|
|
{
|
|
uint16 v = (uint16) (*val);
|
|
return (int16) ((v << 8) | (v >> 8));
|
|
}
|
|
|
|
inline
|
|
uint32 endian_swap(const uint32* val)
|
|
{
|
|
uint32 v = *val;
|
|
return ((v << 24)
|
|
| ((v & 0xFF00) << 8)
|
|
| ((v >> 8) & 0xFF00)
|
|
| (v >> 24));
|
|
}
|
|
|
|
inline
|
|
int32 endian_swap(const int32* val)
|
|
{
|
|
uint32 v = (uint32) (*val);
|
|
return (int32) ((v << 24)
|
|
| ((v & 0xFF00) << 8)
|
|
| ((v >> 8) & 0xFF00)
|
|
| (v >> 24));
|
|
}
|
|
|
|
inline
|
|
uint64 endian_swap(const uint64* val)
|
|
{
|
|
uint64 v = *val;
|
|
return ((v << 56)
|
|
| ((v & 0x000000000000FF00ULL) << 40)
|
|
| ((v & 0x0000000000FF0000ULL) << 24)
|
|
| ((v & 0x00000000FF000000ULL) << 8)
|
|
| ((v & 0x000000FF00000000ULL) >> 8)
|
|
| ((v & 0x0000FF0000000000ULL) >> 24)
|
|
| ((v & 0x00FF000000000000ULL) >> 40)
|
|
| (v >> 56));
|
|
}
|
|
|
|
inline
|
|
int64 endian_swap(const int64* val)
|
|
{
|
|
uint64 v = (uint64) (*val);
|
|
return (int64) ((v << 56)
|
|
| ((v & 0x000000000000FF00ULL) << 40)
|
|
| ((v & 0x0000000000FF0000ULL) << 24)
|
|
| ((v & 0x00000000FF000000ULL) << 8)
|
|
| ((v & 0x000000FF00000000ULL) >> 8)
|
|
| ((v & 0x0000FF0000000000ULL) >> 24)
|
|
| ((v & 0x00FF000000000000ULL) >> 40)
|
|
| (v >> 56));
|
|
}
|
|
|
|
inline
|
|
float endian_swap(const float* val)
|
|
{
|
|
uint32* ival = (uint32 *) val;
|
|
return (float) endian_swap(ival);
|
|
}
|
|
|
|
inline
|
|
double endian_swap(const double* val)
|
|
{
|
|
uint64* ival = (uint64 *) val;
|
|
return (double) endian_swap(ival);
|
|
}
|
|
|
|
#endif |