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shaved more than 500 bytes from zlib, zlib exehead now 33.5k

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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@2722 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
kichik 2003-07-16 12:28:32 +00:00
parent a3cf4bd4ad
commit 711c4c19a2
3 changed files with 245 additions and 297 deletions
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81
Source/zlib/ZLIB.H
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@ -57,23 +57,34 @@ typedef struct inflate_huft_s FAR inflate_huft;
typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
START, /* x: set up for LEN */
LEN, /* i: get length/literal/eob next */
LENEXT, /* i: getting length extra (have base) */
DIST, /* i: get distance next */
DISTEXT, /* i: getting distance extra */
COPY, /* o: copying bytes in window, waiting for space */
LIT, /* o: got literal, waiting for output space */
WASH, /* o: got eob, possibly still output waiting */
END, /* x: got eob and all data flushed */
BADCODE} /* x: got error */
inflate_codes_mode;
CODES_START, /* x: set up for LEN */
CODES_LEN, /* i: get length/literal/eob next */
CODES_LENEXT, /* i: getting length extra (have base) */
CODES_DIST, /* i: get distance next */
CODES_DISTEXT, /* i: getting distance extra */
CODES_COPY, /* o: copying bytes in window, waiting for space */
CODES_LIT, /* o: got literal, waiting for output space */
CODES_WASH, /* o: got eob, possibly still output waiting */
//CODES_END, /* x: got eob and all data flushed */
//CODES_BADCODE, /* x: got error */
TYPE, /* get type bits (3, including end bit) */
LENS, /* get lengths for stored */
STORED, /* processing stored block */
TABLE, /* get table lengths */
BTREE, /* get bit lengths tree for a dynamic block */
DTREE, /* get length, distance trees for a dynamic block */
CODES, /* processing fixed or dynamic block */
DRY, /* output remaining window bytes */
DONE, /* finished last block, done */
BAD /* got a data error--stuck here */
} inflate_mode;
/* inflate codes private state */
struct inflate_codes_state {
/* mode */
inflate_codes_mode mode; /* current inflate_codes mode */
//inflate_mode mode; /* current inflate_codes mode */
/* mode dependent information */
uInt len;
@ -97,22 +108,6 @@ struct inflate_codes_state {
};
typedef enum {
TYPE, /* get type bits (3, including end bit) */
LENS, /* get lengths for stored */
STORED, /* processing stored block */
TABLE, /* get table lengths */
BTREE, /* get bit lengths tree for a dynamic block */
DTREE, /* get length, distance trees for a dynamic block */
CODES, /* processing fixed or dynamic block */
DRY, /* output remaining window bytes */
DONE, /* finished last block, done */
BAD} /* got a data error--stuck here */
inflate_block_mode;
struct inflate_huft_s {
union {
struct {
@ -131,7 +126,7 @@ typedef struct inflate_codes_state inflate_codes_statef;
struct inflate_blocks_state {
/* mode */
inflate_block_mode mode; /* current inflate_block mode */
inflate_mode mode; /* current inflate_block mode */
/* mode dependent information */
union {
@ -147,7 +142,8 @@ struct inflate_blocks_state {
inflate_codes_statef t_codes;
} decode; /* if CODES, current state */
} sub; /* submode */
uInt last; /* true if this block is the last block */
uInt last; /* DRY if this block is the last block, TYPE otherwise */
/* mode independent information */
uInt bitk; /* bits in bit buffer */
@ -204,11 +200,25 @@ typedef z_stream FAR *z_streamp;
#define Z_STREAM_END 1
#define Z_NEED_DICT 2
#define Z_ERRNO (-1)
#ifndef EXEHEAD
#define Z_STREAM_ERROR (-2)
#define Z_DATA_ERROR (-3)
#define Z_MEM_ERROR (-4)
#define Z_BUF_ERROR (-5)
#define Z_VERSION_ERROR (-6)
#else
// EXEHEAD doesn't need a specific return code, just < 0
#define Z_STREAM_ERROR Z_ERRNO
#define Z_DATA_ERROR Z_ERRNO
#define Z_MEM_ERROR Z_ERRNO
#define Z_BUF_ERROR Z_ERRNO
#define Z_VERSION_ERROR Z_ERRNO
#endif
/* Return codes for the compression/decompression functions. Negative
* values are errors, positive values are used for special but normal events.
*/
@ -253,8 +263,15 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
void ZEXPORT inflateReset OF((
z_streamp));
//void ZEXPORT inflateReset OF((
// z_streamp));
#define inflateReset(z) \
{ \
(z)->blocks.mode = TYPE; \
(z)->blocks.bitk = (z)->blocks.bitb = 0; \
(z)->blocks.read = (z)->blocks.write = (z)->blocks.window; \
(z)->blocks.end = (z)->blocks.window + (1 << DEF_WBITS); \
}
/* various hacks, don't look :) */