28 lines
656 B
C
28 lines
656 B
C
#ifndef BUFFER_UTIL_H
|
|
#define BUFFER_UTIL_H
|
|
|
|
#include <SDL2/SDL_stdinc.h>
|
|
|
|
static inline void buffer_write16be(Uint8 *buf, Uint16 value) {
|
|
buf[0] = value >> 8;
|
|
buf[1] = value;
|
|
}
|
|
|
|
static inline void buffer_write32be(Uint8 *buf, Uint32 value) {
|
|
buf[0] = value >> 24;
|
|
buf[1] = value >> 16;
|
|
buf[2] = value >> 8;
|
|
buf[3] = value;
|
|
}
|
|
|
|
static inline Uint32 buffer_read32be(Uint8 *buf) {
|
|
return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
|
|
}
|
|
|
|
static inline Uint64 buffer_read64be(Uint8 *buf) {
|
|
Uint32 msb = buffer_read32be(buf);
|
|
Uint32 lsb = buffer_read32be(&buf[4]);
|
|
return ((Uint64) msb << 32) | lsb;
|
|
}
|
|
|
|
#endif
|