Function ReadLittleBytes

include/bmpread/bmpread.c:126–142

Reads up to 4 little-endian bytes from fp and stores the result in the * uint32_t pointed to by dest in the host's byte order. Returns 0 on EOF or * nonzero on success. */

 * nonzero on success.
 */
static int ReadLittleBytes(uint32_t * dest, int bytes, FILE * fp)
{
    uint32_t shift = 0;

    *dest = 0;

    while(bytes--)
    {
        int byte;
        if((byte = fgetc(fp)) == EOF) return 0;

        *dest += (uint32_t)byte << shift;
        shift += 8;
    }

    return 1;
}

/* Reads a little-endian uint32_t from fp and stores the result in *dest in the
 * host's byte order.  Returns 0 on EOF or nonzero on success.