| /* egprs_rlc_compression.h |
| * Routines for EGPRS RLC bitmap compression handling |
| */ |
| |
| #pragma once |
| |
| struct egprs_compress_node; |
| #define MOD64(X) (((X) + 64) & 0x3F) |
| |
| /* Singleton to manage the EGPRS compression algorithm. */ |
| class egprs_compress |
| { |
| public: |
| static int decompress_crbb(int8_t compress_bmap_len, |
| bool start, const uint8_t *orig_buf, |
| bitvec *dest); |
| egprs_compress(); |
| int osmo_t4_compress(struct bitvec *bv); |
| static int compress_rbb(struct bitvec *urbb_vec, struct bitvec *crbb_vec, |
| uint8_t *uclen_crbb, uint8_t max_bits); |
| |
| private: |
| egprs_compress_node *ones_list; |
| egprs_compress_node *zeros_list; |
| |
| void decode_tree_init(void); |
| static egprs_compress *s_instance; |
| static egprs_compress*instance(); |
| egprs_compress_node *create_tree_node(void *); |
| void build_codewords(egprs_compress_node *root, const char *cdwd[]); |
| /* singleton class, so this private destructor is left unimplemented. */ |
| ~egprs_compress(); |
| }; |