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| 1 | /* deflate.h -- internal compression state |
1 | /* deflate.h -- internal compression state |
| 2 | * Copyright (C) 1995-2010 Jean-loup Gailly |
2 | * Copyright (C) 1995-2012 Jean-loup Gailly |
| 3 | * For conditions of distribution and use, see copyright notice in zlib.h |
3 | * For conditions of distribution and use, see copyright notice in zlib.h |
| 4 | */ |
4 | */ |
| Line 5... | Line 5... | ||
| 5 | 5 | ||
| 6 | /* WARNING: this file should *not* be used by applications. It is |
6 | /* WARNING: this file should *not* be used by applications. It is |
| Line 46... | Line 46... | ||
| 46 | /* maximum heap size */ |
46 | /* maximum heap size */ |
| Line 47... | Line 47... | ||
| 47 | 47 | ||
| 48 | #define MAX_BITS 15 |
48 | #define MAX_BITS 15 |
| Line -... | Line 49... | ||
| - | 49 | /* All codes must not exceed MAX_BITS bits */ |
|
| - | 50 | ||
| - | 51 | #define Buf_size 16 |
|
| 49 | /* All codes must not exceed MAX_BITS bits */ |
52 | /* size of bit buffer in bi_buf */ |
| 50 | 53 | ||
| 51 | #define INIT_STATE 42 |
54 | #define INIT_STATE 42 |
| 52 | #define EXTRA_STATE 69 |
55 | #define EXTRA_STATE 69 |
| 53 | #define NAME_STATE 73 |
56 | #define NAME_STATE 73 |
| Line 99... | Line 102... | ||
| 99 | Bytef *pending_out; /* next pending byte to output to the stream */ |
102 | Bytef *pending_out; /* next pending byte to output to the stream */ |
| 100 | uInt pending; /* nb of bytes in the pending buffer */ |
103 | uInt pending; /* nb of bytes in the pending buffer */ |
| 101 | int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ |
104 | int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ |
| 102 | gz_headerp gzhead; /* gzip header information to write */ |
105 | gz_headerp gzhead; /* gzip header information to write */ |
| 103 | uInt gzindex; /* where in extra, name, or comment */ |
106 | uInt gzindex; /* where in extra, name, or comment */ |
| 104 | Byte method; /* STORED (for zip only) or DEFLATED */ |
107 | Byte method; /* can only be DEFLATED */ |
| 105 | int last_flush; /* value of flush param for previous deflate call */ |
108 | int last_flush; /* value of flush param for previous deflate call */ |
| Line 106... | Line 109... | ||
| 106 | 109 | ||
| Line 107... | Line 110... | ||
| 107 | /* used by deflate.c: */ |
110 | /* used by deflate.c: */ |
| Line 186... | Line 189... | ||
| 186 | /* Use a faster search when the previous match is longer than this */ |
189 | /* Use a faster search when the previous match is longer than this */ |
| Line 187... | Line 190... | ||
| 187 | 190 | ||
| Line 188... | Line 191... | ||
| 188 | int nice_match; /* Stop searching when current match exceeds this */ |
191 | int nice_match; /* Stop searching when current match exceeds this */ |
| 189 | 192 | ||
| 190 | /* used by trees.c: */ |
193 | /* used by trees.c: */ |
| 191 | /* Didn't use ct_data typedef below to supress compiler warning */ |
194 | /* Didn't use ct_data typedef below to suppress compiler warning */ |
| 192 | struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ |
195 | struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ |
| Line 193... | Line 196... | ||
| 193 | struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ |
196 | struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ |
| Line 242... | Line 245... | ||
| 242 | */ |
245 | */ |
| Line 243... | Line 246... | ||
| 243 | 246 | ||
| 244 | ulg opt_len; /* bit length of current block with optimal trees */ |
247 | ulg opt_len; /* bit length of current block with optimal trees */ |
| 245 | ulg static_len; /* bit length of current block with static trees */ |
248 | ulg static_len; /* bit length of current block with static trees */ |
| 246 | uInt matches; /* number of string matches in current block */ |
249 | uInt matches; /* number of string matches in current block */ |
| Line 247... | Line 250... | ||
| 247 | int last_eob_len; /* bit length of EOB code for last block */ |
250 | uInt insert; /* bytes at end of window left to insert */ |
| 248 | 251 | ||
| 249 | #ifdef DEBUG |
252 | #ifdef DEBUG |
| 250 | ulg compressed_len; /* total bit length of compressed file mod 2^32 */ |
253 | ulg compressed_len; /* total bit length of compressed file mod 2^32 */ |
| Line 292... | Line 295... | ||
| 292 | /* in trees.c */ |
295 | /* in trees.c */ |
| 293 | void ZLIB_INTERNAL _tr_init OF((deflate_state *s)); |
296 | void ZLIB_INTERNAL _tr_init OF((deflate_state *s)); |
| 294 | int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); |
297 | int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); |
| 295 | void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf, |
298 | void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf, |
| 296 | ulg stored_len, int last)); |
299 | ulg stored_len, int last)); |
| - | 300 | void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s)); |
|
| 297 | void ZLIB_INTERNAL _tr_align OF((deflate_state *s)); |
301 | void ZLIB_INTERNAL _tr_align OF((deflate_state *s)); |
| 298 | void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, |
302 | void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, |
| 299 | ulg stored_len, int last)); |
303 | ulg stored_len, int last)); |
| Line 300... | Line 304... | ||
| 300 | 304 | ||