| 2561 | } |
| 2562 | |
| 2563 | static inline unsigned int bits_peek(bitbuf_t *bb, int bits) |
| 2564 | { |
| 2565 | unsigned int val; |
| 2566 | int left = 32 - (bb->pos & 31); |
| 2567 | |
| 2568 | if (bits < left) |
| 2569 | { |
| 2570 | val = (bb->val >> (left - bits)) & bitmask[bits]; |
| 2571 | } |
| 2572 | else |
| 2573 | { |
| 2574 | val = (bb->val & bitmask[left]) << (bits - left); |
| 2575 | int bpos = bb->pos + left; |
| 2576 | bits -= left; |
| 2577 | |
| 2578 | |
| 2579 | if (bits > 0) |
| 2580 | { |
| 2581 | int pos = bpos >> 3; |
| 2582 | int bval = (bb->buf[pos] << 24) | |
| 2583 | (bb->buf[pos + 1] << 16) | |
| 2584 | (bb->buf[pos + 2] << 8) | |
| 2585 | bb->buf[pos + 3]; |
| 2586 | val |= (bval >> (32 - bits)) & bitmask[bits]; |
| 2587 | } |
| 2588 | } |
| 2589 | |
| 2590 | return val; |
| 2591 | } |
| 2592 | |
| 2593 | static inline unsigned int bits_get(bitbuf_t *bb, int bits) |
| 2594 | { |