diff options
Diffstat (limited to 'lib/zlib')
| -rw-r--r-- | lib/zlib/deflate.c | 2 | ||||
| -rw-r--r-- | lib/zlib/deflate.h | 2 | ||||
| -rw-r--r-- | lib/zlib/inffast.c | 51 | ||||
| -rw-r--r-- | lib/zlib/trees.c | 2 | ||||
| -rw-r--r-- | lib/zlib/zlib.h | 1 | ||||
| -rw-r--r-- | lib/zlib/zutil.h | 1 |
6 files changed, 40 insertions, 19 deletions
diff --git a/lib/zlib/deflate.c b/lib/zlib/deflate.c index 7e1ed4f9b20..af7542cc9a8 100644 --- a/lib/zlib/deflate.c +++ b/lib/zlib/deflate.c @@ -164,7 +164,6 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ */ #define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask) - /* =========================================================================== * Insert string str in the dictionary and set match_head to the previous head * of the hash chain (the most recent string with same hash key). Return @@ -966,7 +965,6 @@ int ZEXPORT deflateCopy (dest, source) deflate_state *ds; deflate_state *ss; - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { return Z_STREAM_ERROR; } diff --git a/lib/zlib/deflate.h b/lib/zlib/deflate.h index 4c53b94af0b..b4a4634ec78 100644 --- a/lib/zlib/deflate.h +++ b/lib/zlib/deflate.h @@ -57,7 +57,6 @@ #define FINISH_STATE 666 /* Stream status */ - /* Data structure describing a single value and its code string. */ typedef struct ct_data_s { union { @@ -269,7 +268,6 @@ typedef struct internal_state { */ #define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} - #define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) /* Minimum amount of lookahead, except at the end of the input file. * See deflate.c for comments about the MIN_MATCH+1. diff --git a/lib/zlib/inffast.c b/lib/zlib/inffast.c index 5e2a65ad4d2..b5a0adcce69 100644 --- a/lib/zlib/inffast.c +++ b/lib/zlib/inffast.c @@ -236,18 +236,47 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ } } else { + unsigned short *sout; + unsigned long loops; + from = out - dist; /* copy direct from output */ - do { /* minimum length is three */ - *out++ = *from++; - *out++ = *from++; - *out++ = *from++; - len -= 3; - } while (len > 2); - if (len) { - *out++ = *from++; - if (len > 1) - *out++ = *from++; - } + /* minimum length is three */ + /* Align out addr */ + if (!((long)(out - 1) & 1)) { + *out++ = *from++; + len--; + } + sout = (unsigned short *)out; + if (dist > 2 ) { + unsigned short *sfrom; + + sfrom = (unsigned short *)from; + loops = len >> 1; + do + *sout++ = get_unaligned(sfrom++); + while (--loops); + out = (unsigned char *)sout; + from = (unsigned char *)sfrom; + } else { /* dist == 1 or dist == 2 */ + unsigned short pat16; + + pat16 = *(sout - 1); + if (dist == 1) +#if defined(__BIG_ENDIAN) + pat16 = (pat16 & 0xff) | ((pat16 & 0xff ) << 8); +#elif defined(__LITTLE_ENDIAN) + pat16 = (pat16 & 0xff00) | ((pat16 & 0xff00 ) >> 8); +#else +#error __BIG_ENDIAN nor __LITTLE_ENDIAN is defined +#endif + loops = len >> 1; + do + *sout++ = pat16; + while (--loops); + out = (unsigned char *)sout; + } + if (len & 1) + *out++ = *from++; } } else if ((op & 64) == 0) { /* 2nd level distance code */ diff --git a/lib/zlib/trees.c b/lib/zlib/trees.c index e040617686a..569d44351e5 100644 --- a/lib/zlib/trees.c +++ b/lib/zlib/trees.c @@ -231,7 +231,6 @@ local void send_bits(s, value, length) } #endif /* DEBUG */ - /* the arguments must not have side effects */ /* =========================================================================== @@ -431,7 +430,6 @@ local void init_block(s) #define SMALLEST 1 /* Index within the heap array of least frequent node in the Huffman tree */ - /* =========================================================================== * Remove the smallest element from the heap and recreate the heap with * one less element. Updates heap and heap_len. diff --git a/lib/zlib/zlib.h b/lib/zlib/zlib.h index 560e7be97d3..f9b2f69ac02 100644 --- a/lib/zlib/zlib.h +++ b/lib/zlib/zlib.h @@ -10,7 +10,6 @@ /* avoid conflicts */ #undef OFF #undef ASMINF -#undef POSTINC #undef NO_GZIP #define GUNZIP #undef STDC diff --git a/lib/zlib/zutil.h b/lib/zlib/zutil.h index e63bf68653f..c0c04196a02 100644 --- a/lib/zlib/zutil.h +++ b/lib/zlib/zutil.h @@ -114,7 +114,6 @@ extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ # define Tracecv(c,x) #endif - voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); void zcfree OF((voidpf opaque, voidpf ptr, unsigned size)); |