libdc/src/array.c

30 lines
628 B
C

#include "array.h"
void
array_reverse_bytes (unsigned char data[], unsigned int size)
{
for (unsigned int i = 0; i < size / 2; ++i) {
unsigned char hlp = data[i];
data[i] = data[size - 1 - i];
data[size - 1 - i] = hlp;
}
}
void
array_reverse_bits (unsigned char data[], unsigned int size)
{
for (unsigned int i = 0; i < size; ++i) {
unsigned char j = 0;
j = (data[i] & 0x01) << 7;
j += (data[i] & 0x02) << 5;
j += (data[i] & 0x04) << 3;
j += (data[i] & 0x08) << 1;
j += (data[i] & 0x10) >> 1;
j += (data[i] & 0x20) >> 3;
j += (data[i] & 0x40) >> 5;
j += (data[i] & 0x80) >> 7;
data[i] = j;
}
}