Cross Reference: /src/common/dist/zlib/inflate.c

Lines Matching defs:inflate
1 /*	$NetBSD: inflate.c,v 1.8 2024/09/22 19:12:27 christos Exp $	*/
3 /* inflate.c -- zlib decompression
12  * - First version -- complete rewrite of inflate to simplify code, avoid
15  *   improve code readability and style over the previous zlib inflate code
26  * - Correct filename to inffixed.h for fixed tables in inflate.c
27  * - Make hbuf[] unsigned char to match parameter type in inflate.c
29  *   to avoid negation problem on Alphas (64 bit) in inflate.c
39  * - Make MATCH copy in inflate() much faster for when inflate_fast() not used
41  *   buffer and bit count in inflate()--for speed when inflate_fast() not used
45  * - Move a comment on output buffer sizes from inffast.c to inflate.c
55  *   source file infback.c to provide a call-back interface to inflate for
80  * - Check next_in and next_out for Z_NULL on entry to inflate()
87 #include "inflate.h"
128     Tracev((stderr, "inflate: reset\n"));
207     Tracev((stderr, "inflate: allocated\n"));
360    inflate call, but the end of the deflate stream has not been reached yet.
364    Providing output buffers larger than 32K to inflate() should provide a speed
366    upon return from inflate(), and since all distances after the first 32K of
416 /* Macros for inflate(): */
445 /* Load registers with state in inflate() for speed */
456 /* Restore state from registers in inflate() */
474 /* Get a byte of input into the bit accumulator, or return from inflate()
485 inflate(). */
511    inflate() uses a state machine to process as much input data and generate as
526    so when inflate() is called again, the same case is attempted again, and
537    where NEEDBITS(n) either returns from inflate() if there isn't enough
574    during that inflate() call in order to return the proper return code.
579    output to the window for the next call of inflate().
581    In this implementation, the flush parameter of inflate() only affects the
582    return code (per zlib.h).  inflate() always writes as much as possible to
584    documented in zlib.h of Z_SYNC_FLUSH.  Furthermore, inflate() always defers
588    when flush is set to Z_FINISH, inflate() cannot return Z_OK.  Instead it
592 int ZEXPORT inflate(z_streamp strm, int flush) {
674             Tracev((stderr, "inflate:   zlib header ok\n"));
847                 Tracev((stderr, "inflate:     stored block%s\n",
853                 Tracev((stderr, "inflate:     fixed codes block%s\n",
862                 Tracev((stderr, "inflate:     dynamic codes block%s\n",
881             Tracev((stderr, "inflate:       stored length %u\n",
904             Tracev((stderr, "inflate:       stored end\n"));
922             Tracev((stderr, "inflate:       table sizes ok\n"));
944             Tracev((stderr, "inflate:       code lengths ok\n"));
1028             Tracev((stderr, "inflate:       codes ok\n"));
1066                         "inflate:         literal '%c'\n" :
1067                         "inflate:         literal 0x%02x\n", here.val));
1072                 Tracevv((stderr, "inflate:         end of block\n"));
1092             Tracevv((stderr, "inflate:         length %u\n", state->length));
1138             Tracevv((stderr, "inflate:         distance %u\n", state->offset));
1153                     Trace((stderr, "inflate.c too far\n"));
1212                 Tracev((stderr, "inflate:   check matches trailer\n"));
1226                 Tracev((stderr, "inflate:   length matches trailer\n"));
1246        Return from inflate(), updating the total counts and the check value.
1247        If there was no progress during the inflate() call, return a buffer
1249        Note: a memory error from inflate() is non-recoverable.
1283     Tracev((stderr, "inflate: end\n"));
1335 inflate:   dictionary set\n"));
1417     /* return no joy or set up to restart inflate() on a new block */
1433    Returns true if inflate is currently at the end of a block generated by
1438    inflate is waiting for these length bytes.
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