diff options
| -rw-r--r-- | src/helper/binarybuffer.c | 6 | ||||
| -rw-r--r-- | src/helper/binarybuffer.h | 35 |
2 files changed, 18 insertions, 23 deletions
diff --git a/src/helper/binarybuffer.c b/src/helper/binarybuffer.c index fdfcf71..d813ecf 100644 --- a/src/helper/binarybuffer.c +++ b/src/helper/binarybuffer.c @@ -145,10 +145,10 @@ uint8_t* buf_set_buf(const uint8_t *src, int src_start, uint8_t *dst, int dst_st for (i = 0; i < len; i++) { - if (((src[src_idx/8] >> (src_idx % 8)) & 1) == 1) - dst[dst_idx/8] |= 1 << (dst_idx%8); + if (((src[src_idx / 8] >> (src_idx % 8)) & 1) == 1) + dst[dst_idx / 8] |= 1 << (dst_idx % 8); else - dst[dst_idx/8] &= ~(1 << (dst_idx%8)); + dst[dst_idx / 8] &= ~(1 << (dst_idx % 8)); dst_idx++; src_idx++; } diff --git a/src/helper/binarybuffer.h b/src/helper/binarybuffer.h index 2399a6e..60077b3 100644 --- a/src/helper/binarybuffer.h +++ b/src/helper/binarybuffer.h @@ -25,38 +25,34 @@ #include "types.h" -/* support functions to access arbitrary bits in a byte array - * flip_u32 inverses the bit order inside a 32-bit word (31..0 -> 0..31) +/** @file + * Support functions to access arbitrary bits in a byte array */ /* inlining this will help show what fn that is taking time during profiling. */ static inline void buf_set_u32(uint8_t* buffer, unsigned int first, unsigned int num, uint32_t value) { - if ((num == 32) && (first == 0)) - { - buffer[3]=(value >> 24)&0xff; - buffer[2]=(value >> 16)&0xff; - buffer[1]=(value >> 8)&0xff; - buffer[0]=(value >> 0)&0xff; - } else - { + if ((num == 32) && (first == 0)) { + buffer[3] = (value >> 24) & 0xff; + buffer[2] = (value >> 16) & 0xff; + buffer[1] = (value >> 8) & 0xff; + buffer[0] = (value >> 0) & 0xff; + } else { unsigned int i; - for (i = first; i < first + num; i++) { - if (((value >> (i-first))&1) == 1) - buffer[i/8] |= 1 << (i%8); + if (((value >> (i - first)) & 1) == 1) + buffer[i / 8] |= 1 << (i % 8); else - buffer[i/8] &= ~(1 << (i%8)); + buffer[i / 8] &= ~(1 << (i % 8)); } } } static inline uint32_t buf_get_u32(const uint8_t* buffer, unsigned int first, unsigned int num) { - if ((num == 32) && (first == 0)) - { + if ((num == 32) && (first == 0)) { return (((uint32_t)buffer[3]) << 24) | (((uint32_t)buffer[2]) << 16) | (((uint32_t)buffer[1]) << 8) | @@ -64,17 +60,16 @@ static inline uint32_t buf_get_u32(const uint8_t* buffer, } else { uint32_t result = 0; unsigned int i; - for (i = first; i < first + num; i++) { - if (((buffer[i/8]>>(i%8))&1) == 1) - result |= 1 << (i-first); + if (((buffer[i / 8] >> (i % 8)) & 1) == 1) + result |= 1 << (i - first); } - return result; } } +/// flip_u32 inverts the bit order inside a 32-bit word (31..0 -> 0..31) uint32_t flip_u32(uint32_t value, unsigned int num); int buf_cmp(const uint8_t *buf1, const uint8_t *buf2, int size); |