chunk_location.h

#ifndef LIBCLOD_CHUNK_LOCATION_H
#define LIBCLOD_CHUNK_LOCATION_H
 
#include <stdint.h>
 
typedef struct {
    uint32_t offset : 24;
    uint8_t size : 8;
} chunk_loc;
 
static inline chunk_loc chunk_loc_dec(uint8_t ptr[4]) {
    chunk_loc loc;
    loc.offset = (uint32_t)(ptr[0] << 16 | ptr[1] << 8 | ptr[2]);
    loc.size = ptr[3];
    return loc;
}
static inline void chunk_loc_enc(uint8_t ptr[4], chunk_loc loc) {
    ptr[0] = (uint8_t)(loc.offset >> 16);
    ptr[1] = (uint8_t)(loc.offset >> 8);
    ptr[2] = (uint8_t)loc.offset;
    ptr[3] = loc.size;
}
 
#endif