diff options
Diffstat (limited to 'zlib/deflate.c')
| -rw-r--r-- | zlib/deflate.c | 104 |
1 files changed, 27 insertions, 77 deletions
diff --git a/zlib/deflate.c b/zlib/deflate.c index 1febd40adb2..39f199be68c 100644 --- a/zlib/deflate.c +++ b/zlib/deflate.c @@ -201,11 +201,8 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); /* ========================================================================= */ -int ZEXPORT deflateInit_(strm, level, version, stream_size) - z_streamp strm; - int level; - const char *version; - int stream_size; +int ZEXPORT deflateInit_(z_streamp strm, int level, + const char *version, int stream_size) { return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, version, stream_size); @@ -213,16 +210,9 @@ int ZEXPORT deflateInit_(strm, level, version, stream_size) } /* ========================================================================= */ -int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) - z_streamp strm; - int level; - int method; - int windowBits; - int memLevel; - int strategy; - const char *version; - int stream_size; +int ZEXPORT deflateInit2_(z_streamp strm, int level, + int method, int windowBits, int memLevel, + int strategy, const char *version, int stream_size) { deflate_state *s; int wrap = 1; @@ -312,10 +302,8 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, } /* ========================================================================= */ -int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) - z_streamp strm; - const Bytef *dictionary; - uInt dictLength; +int ZEXPORT deflateSetDictionary (z_streamp strm, + const Bytef *dictionary, uInt dictLength) { deflate_state *s; uInt length = dictLength; @@ -354,8 +342,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) } /* ========================================================================= */ -int ZEXPORT deflateReset (strm) - z_streamp strm; +int ZEXPORT deflateReset (z_streamp strm) { deflate_state *s; @@ -390,9 +377,7 @@ int ZEXPORT deflateReset (strm) } /* ========================================================================= */ -int ZEXPORT deflateSetHeader (strm, head) - z_streamp strm; - gz_headerp head; +int ZEXPORT deflateSetHeader (z_streamp strm, gz_headerp head) { if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; if (strm->state->wrap != 2) return Z_STREAM_ERROR; @@ -401,10 +386,7 @@ int ZEXPORT deflateSetHeader (strm, head) } /* ========================================================================= */ -int ZEXPORT deflatePrime (strm, bits, value) - z_streamp strm; - int bits; - int value; +int ZEXPORT deflatePrime (z_streamp strm, int bits, int value) { if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; strm->state->bi_valid = bits; @@ -413,10 +395,7 @@ int ZEXPORT deflatePrime (strm, bits, value) } /* ========================================================================= */ -int ZEXPORT deflateParams(strm, level, strategy) - z_streamp strm; - int level; - int strategy; +int ZEXPORT deflateParams(z_streamp strm, int level, int strategy) { deflate_state *s; compress_func func; @@ -451,12 +430,8 @@ int ZEXPORT deflateParams(strm, level, strategy) } /* ========================================================================= */ -int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) - z_streamp strm; - int good_length; - int max_lazy; - int nice_length; - int max_chain; +int ZEXPORT deflateTune(z_streamp strm, int good_length, int max_lazy, + int nice_length, int max_chain) { deflate_state *s; @@ -486,9 +461,7 @@ int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) * But even the conservative upper bound of about 14% expansion does not * seem onerous for output buffer allocation. */ -uLong ZEXPORT deflateBound(strm, sourceLen) - z_streamp strm; - uLong sourceLen; +uLong ZEXPORT deflateBound(z_streamp strm, uLong sourceLen) { deflate_state *s; uLong destLen; @@ -515,9 +488,7 @@ uLong ZEXPORT deflateBound(strm, sourceLen) * IN assertion: the stream state is correct and there is enough room in * pending_buf. */ -local void putShortMSB (s, b) - deflate_state *s; - uInt b; +local void putShortMSB (deflate_state *s, uInt b) { put_byte(s, (Byte)(b >> 8)); put_byte(s, (Byte)(b & 0xff)); @@ -529,8 +500,7 @@ local void putShortMSB (s, b) * to avoid allocating a large strm->next_out buffer and copying into it. * (See also read_buf()). */ -local void flush_pending(strm) - z_streamp strm; +local void flush_pending(z_streamp strm) { unsigned len = strm->state->pending; @@ -549,9 +519,7 @@ local void flush_pending(strm) } /* ========================================================================= */ -int ZEXPORT deflate (strm, flush) - z_streamp strm; - int flush; +int ZEXPORT deflate (z_streamp strm, int flush) { int old_flush; /* value of flush param for previous deflate call */ deflate_state *s; @@ -856,8 +824,7 @@ int ZEXPORT deflate (strm, flush) } /* ========================================================================= */ -int ZEXPORT deflateEnd (strm) - z_streamp strm; +int ZEXPORT deflateEnd (z_streamp strm) { int status; @@ -891,9 +858,7 @@ int ZEXPORT deflateEnd (strm) * To simplify the source, this is not supported for 16-bit MSDOS (which * doesn't have enough memory anyway to duplicate compression states). */ -int ZEXPORT deflateCopy (dest, source) - z_streamp dest; - z_streamp source; +int ZEXPORT deflateCopy (z_streamp dest, z_streamp source) { #ifdef MAXSEG_64K return Z_STREAM_ERROR; @@ -953,10 +918,7 @@ int ZEXPORT deflateCopy (dest, source) * allocating a large strm->next_in buffer and copying from it. * (See also flush_pending()). */ -local int read_buf(strm, buf, size) - z_streamp strm; - Bytef *buf; - unsigned size; +local int read_buf(z_streamp strm, Bytef *buf, unsigned size) { unsigned len = strm->avail_in; @@ -983,8 +945,7 @@ local int read_buf(strm, buf, size) /* =========================================================================== * Initialize the "longest match" routines for a new zlib stream */ -local void lm_init (s) - deflate_state *s; +local void lm_init (deflate_state *s) { s->window_size = (ulg)2L*s->w_size; @@ -1024,9 +985,7 @@ local void lm_init (s) /* For 80x86 and 680x0, an optimized version will be provided in match.asm or * match.S. The code will be functionally equivalent. */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ +local uInt longest_match(deflate_state *s, IPos cur_match) /* current match */ { unsigned chain_length = s->max_chain_length;/* max hash chain length */ register Bytef *scan = s->window + s->strstart; /* current string */ @@ -1172,9 +1131,7 @@ local uInt longest_match(s, cur_match) /* --------------------------------------------------------------------------- * Optimized version for level == 1 or strategy == Z_RLE only */ -local uInt longest_match_fast(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ +local uInt longest_match_fast(deflate_state *s, IPos cur_match) /* current match */ { register Bytef *scan = s->window + s->strstart; /* current string */ register Bytef *match; /* matched string */ @@ -1263,8 +1220,7 @@ local void check_match(s, start, match, length) * performed for at least two bytes (required for the zip translate_eol * option -- not supported here). */ -local void fill_window(s) - deflate_state *s; +local void fill_window(deflate_state *s) { register unsigned n, m; register Posf *p; @@ -1387,9 +1343,7 @@ local void fill_window(s) * NOTE: this function should be optimized to avoid extra copying from * window to pending_buf. */ -local block_state deflate_stored(s, flush) - deflate_state *s; - int flush; +local block_state deflate_stored(deflate_state *s, int flush) { /* Stored blocks are limited to 0xffff bytes, pending_buf is limited * to pending_buf_size, and each stored block has a 5 byte header: @@ -1445,9 +1399,7 @@ local block_state deflate_stored(s, flush) * new strings in the dictionary only for unmatched strings or for short * matches. It is used only for the fast compression options. */ -local block_state deflate_fast(s, flush) - deflate_state *s; - int flush; +local block_state deflate_fast(deflate_state *s, int flush) { IPos hash_head = NIL; /* head of the hash chain */ int bflush; /* set if current block must be flushed */ @@ -1551,9 +1503,7 @@ local block_state deflate_fast(s, flush) * evaluation for matches: a match is finally adopted only if there is * no better match at the next window position. */ -local block_state deflate_slow(s, flush) - deflate_state *s; - int flush; +local block_state deflate_slow(deflate_state *s, int flush) { IPos hash_head = NIL; /* head of hash chain */ int bflush; /* set if current block must be flushed */ |