From 7c6c80fbe17136c54a699d11d97c73996687186b Mon Sep 17 00:00:00 2001 From: cvs2git Date: Fri, 18 Mar 2011 10:11:49 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'zlib-1_2_5'. Sprout from zlib 2011-03-18 10:11:48 UTC Ralf Corsepius 'Import from zlib-1.2.5' Delete: cpukit/zlib/algorithm.txt cpukit/zlib/as400/bndsrc cpukit/zlib/as400/compile.clp cpukit/zlib/as400/readme.txt cpukit/zlib/as400/zlib.inc cpukit/zlib/contrib/asm586/README.586 cpukit/zlib/contrib/asm586/match.S cpukit/zlib/contrib/masm686/match.asm cpukit/zlib/contrib/masmx64/inffasx64.obj cpukit/zlib/contrib/masmx86/gvmat32.asm cpukit/zlib/contrib/masmx86/gvmat32c.c cpukit/zlib/contrib/masmx86/mkasm.bat cpukit/zlib/contrib/minizip/ChangeLogUnzip cpukit/zlib/contrib/testzlib/testzlib.sln cpukit/zlib/contrib/testzlib/testzlib.vcproj cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj cpukit/zlib/contrib/vstudio/vc7/zlib.rc cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj cpukit/zlib/contrib/vstudio/vc7/zlibvc.def cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj cpukit/zlib/contrib/vstudio/vc8/zlib.rc cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj cpukit/zlib/contrib/vstudio/vc8/zlibvc.def cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln cpukit/zlib/contrib/vstudio/vc8/zlibvc.vcproj cpukit/zlib/gzio.c cpukit/zlib/old/zlib.html cpukit/zlib/projects/README.projects cpukit/zlib/projects/visualc6/README.txt cpukit/zlib/projects/visualc6/example.dsp cpukit/zlib/projects/visualc6/minigzip.dsp cpukit/zlib/projects/visualc6/zlib.dsp cpukit/zlib/projects/visualc6/zlib.dsw cpukit/zlib/zconf.in.h --- cpukit/zlib/algorithm.txt | 209 ---- cpukit/zlib/as400/bndsrc | 132 --- cpukit/zlib/as400/compile.clp | 123 -- cpukit/zlib/as400/readme.txt | 111 -- cpukit/zlib/as400/zlib.inc | 331 ------ cpukit/zlib/contrib/asm586/README.586 | 43 - cpukit/zlib/contrib/asm586/match.S | 364 ------ cpukit/zlib/contrib/masm686/match.asm | 413 ------- cpukit/zlib/contrib/masmx64/inffasx64.obj | Bin 5913 -> 0 bytes cpukit/zlib/contrib/masmx86/gvmat32.asm | 972 ---------------- cpukit/zlib/contrib/masmx86/gvmat32c.c | 62 - cpukit/zlib/contrib/masmx86/mkasm.bat | 3 - cpukit/zlib/contrib/minizip/ChangeLogUnzip | 67 -- cpukit/zlib/contrib/testzlib/testzlib.sln | 21 - cpukit/zlib/contrib/testzlib/testzlib.vcproj | 124 -- cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj | 126 -- cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj | 126 -- cpukit/zlib/contrib/vstudio/vc7/zlib.rc | 32 - cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj | 246 ---- cpukit/zlib/contrib/vstudio/vc7/zlibvc.def | 92 -- cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln | 78 -- cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj | 445 ------- cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj | 566 --------- cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj | 563 --------- cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj | 948 --------------- cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj | 567 --------- cpukit/zlib/contrib/vstudio/vc8/zlib.rc | 32 - cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj | 870 -------------- cpukit/zlib/contrib/vstudio/vc8/zlibvc.def | 92 -- cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln | 144 --- cpukit/zlib/contrib/vstudio/vc8/zlibvc.vcproj | 1219 -------------------- cpukit/zlib/gzio.c | 1026 ---------------- cpukit/zlib/old/zlib.html | 971 ---------------- cpukit/zlib/projects/README.projects | 41 - cpukit/zlib/projects/visualc6/README.txt | 73 -- cpukit/zlib/projects/visualc6/example.dsp | 278 ----- cpukit/zlib/projects/visualc6/minigzip.dsp | 278 ----- cpukit/zlib/projects/visualc6/zlib.dsp | 621 ---------- cpukit/zlib/projects/visualc6/zlib.dsw | 59 - cpukit/zlib/zconf.in.h | 332 ------ 40 files changed, 12800 deletions(-) delete mode 100644 cpukit/zlib/algorithm.txt delete mode 100644 cpukit/zlib/as400/bndsrc delete mode 100644 cpukit/zlib/as400/compile.clp delete mode 100644 cpukit/zlib/as400/readme.txt delete mode 100644 cpukit/zlib/as400/zlib.inc delete mode 100644 cpukit/zlib/contrib/asm586/README.586 delete mode 100644 cpukit/zlib/contrib/asm586/match.S delete mode 100644 cpukit/zlib/contrib/masm686/match.asm delete mode 100644 cpukit/zlib/contrib/masmx64/inffasx64.obj delete mode 100644 cpukit/zlib/contrib/masmx86/gvmat32.asm delete mode 100644 cpukit/zlib/contrib/masmx86/gvmat32c.c delete mode 100755 cpukit/zlib/contrib/masmx86/mkasm.bat delete mode 100644 cpukit/zlib/contrib/minizip/ChangeLogUnzip delete mode 100644 cpukit/zlib/contrib/testzlib/testzlib.sln delete mode 100644 cpukit/zlib/contrib/testzlib/testzlib.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlib.rc delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.def delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln delete mode 100644 cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/zlib.rc delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/zlibvc.def delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln delete mode 100644 cpukit/zlib/contrib/vstudio/vc8/zlibvc.vcproj delete mode 100644 cpukit/zlib/gzio.c delete mode 100644 cpukit/zlib/old/zlib.html delete mode 100644 cpukit/zlib/projects/README.projects delete mode 100644 cpukit/zlib/projects/visualc6/README.txt delete mode 100644 cpukit/zlib/projects/visualc6/example.dsp delete mode 100644 cpukit/zlib/projects/visualc6/minigzip.dsp delete mode 100644 cpukit/zlib/projects/visualc6/zlib.dsp delete mode 100644 cpukit/zlib/projects/visualc6/zlib.dsw delete mode 100644 cpukit/zlib/zconf.in.h diff --git a/cpukit/zlib/algorithm.txt b/cpukit/zlib/algorithm.txt deleted file mode 100644 index b022dde312..0000000000 --- a/cpukit/zlib/algorithm.txt +++ /dev/null @@ -1,209 +0,0 @@ -1. Compression algorithm (deflate) - -The deflation algorithm used by gzip (also zip and zlib) is a variation of -LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in -the input data. The second occurrence of a string is replaced by a -pointer to the previous string, in the form of a pair (distance, -length). Distances are limited to 32K bytes, and lengths are limited -to 258 bytes. When a string does not occur anywhere in the previous -32K bytes, it is emitted as a sequence of literal bytes. (In this -description, `string' must be taken as an arbitrary sequence of bytes, -and is not restricted to printable characters.) - -Literals or match lengths are compressed with one Huffman tree, and -match distances are compressed with another tree. The trees are stored -in a compact form at the start of each block. The blocks can have any -size (except that the compressed data for one block must fit in -available memory). A block is terminated when deflate() determines that -it would be useful to start another block with fresh trees. (This is -somewhat similar to the behavior of LZW-based _compress_.) - -Duplicated strings are found using a hash table. All input strings of -length 3 are inserted in the hash table. A hash index is computed for -the next 3 bytes. If the hash chain for this index is not empty, all -strings in the chain are compared with the current input string, and -the longest match is selected. - -The hash chains are searched starting with the most recent strings, to -favor small distances and thus take advantage of the Huffman encoding. -The hash chains are singly linked. There are no deletions from the -hash chains, the algorithm simply discards matches that are too old. - -To avoid a worst-case situation, very long hash chains are arbitrarily -truncated at a certain length, determined by a runtime option (level -parameter of deflateInit). So deflate() does not always find the longest -possible match but generally finds a match which is long enough. - -deflate() also defers the selection of matches with a lazy evaluation -mechanism. After a match of length N has been found, deflate() searches for -a longer match at the next input byte. If a longer match is found, the -previous match is truncated to a length of one (thus producing a single -literal byte) and the process of lazy evaluation begins again. Otherwise, -the original match is kept, and the next match search is attempted only N -steps later. - -The lazy match evaluation is also subject to a runtime parameter. If -the current match is long enough, deflate() reduces the search for a longer -match, thus speeding up the whole process. If compression ratio is more -important than speed, deflate() attempts a complete second search even if -the first match is already long enough. - -The lazy match evaluation is not performed for the fastest compression -modes (level parameter 1 to 3). For these fast modes, new strings -are inserted in the hash table only when no match was found, or -when the match is not too long. This degrades the compression ratio -but saves time since there are both fewer insertions and fewer searches. - - -2. Decompression algorithm (inflate) - -2.1 Introduction - -The key question is how to represent a Huffman code (or any prefix code) so -that you can decode fast. The most important characteristic is that shorter -codes are much more common than longer codes, so pay attention to decoding the -short codes fast, and let the long codes take longer to decode. - -inflate() sets up a first level table that covers some number of bits of -input less than the length of longest code. It gets that many bits from the -stream, and looks it up in the table. The table will tell if the next -code is that many bits or less and how many, and if it is, it will tell -the value, else it will point to the next level table for which inflate() -grabs more bits and tries to decode a longer code. - -How many bits to make the first lookup is a tradeoff between the time it -takes to decode and the time it takes to build the table. If building the -table took no time (and if you had infinite memory), then there would only -be a first level table to cover all the way to the longest code. However, -building the table ends up taking a lot longer for more bits since short -codes are replicated many times in such a table. What inflate() does is -simply to make the number of bits in the first table a variable, and then -to set that variable for the maximum speed. - -For inflate, which has 286 possible codes for the literal/length tree, the size -of the first table is nine bits. Also the distance trees have 30 possible -values, and the size of the first table is six bits. Note that for each of -those cases, the table ended up one bit longer than the ``average'' code -length, i.e. the code length of an approximately flat code which would be a -little more than eight bits for 286 symbols and a little less than five bits -for 30 symbols. - - -2.2 More details on the inflate table lookup - -Ok, you want to know what this cleverly obfuscated inflate tree actually -looks like. You are correct that it's not a Huffman tree. It is simply a -lookup table for the first, let's say, nine bits of a Huffman symbol. The -symbol could be as short as one bit or as long as 15 bits. If a particular -symbol is shorter than nine bits, then that symbol's translation is duplicated -in all those entries that start with that symbol's bits. For example, if the -symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a -symbol is nine bits long, it appears in the table once. - -If the symbol is longer than nine bits, then that entry in the table points -to another similar table for the remaining bits. Again, there are duplicated -entries as needed. The idea is that most of the time the symbol will be short -and there will only be one table look up. (That's whole idea behind data -compression in the first place.) For the less frequent long symbols, there -will be two lookups. If you had a compression method with really long -symbols, you could have as many levels of lookups as is efficient. For -inflate, two is enough. - -So a table entry either points to another table (in which case nine bits in -the above example are gobbled), or it contains the translation for the symbol -and the number of bits to gobble. Then you start again with the next -ungobbled bit. - -You may wonder: why not just have one lookup table for how ever many bits the -longest symbol is? The reason is that if you do that, you end up spending -more time filling in duplicate symbol entries than you do actually decoding. -At least for deflate's output that generates new trees every several 10's of -kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code -would take too long if you're only decoding several thousand symbols. At the -other extreme, you could make a new table for every bit in the code. In fact, -that's essentially a Huffman tree. But then you spend two much time -traversing the tree while decoding, even for short symbols. - -So the number of bits for the first lookup table is a trade of the time to -fill out the table vs. the time spent looking at the second level and above of -the table. - -Here is an example, scaled down: - -The code being decoded, with 10 symbols, from 1 to 6 bits long: - -A: 0 -B: 10 -C: 1100 -D: 11010 -E: 11011 -F: 11100 -G: 11101 -H: 11110 -I: 111110 -J: 111111 - -Let's make the first table three bits long (eight entries): - -000: A,1 -001: A,1 -010: A,1 -011: A,1 -100: B,2 -101: B,2 -110: -> table X (gobble 3 bits) -111: -> table Y (gobble 3 bits) - -Each entry is what the bits decode as and how many bits that is, i.e. how -many bits to gobble. Or the entry points to another table, with the number of -bits to gobble implicit in the size of the table. - -Table X is two bits long since the longest code starting with 110 is five bits -long: - -00: C,1 -01: C,1 -10: D,2 -11: E,2 - -Table Y is three bits long since the longest code starting with 111 is six -bits long: - -000: F,2 -001: F,2 -010: G,2 -011: G,2 -100: H,2 -101: H,2 -110: I,3 -111: J,3 - -So what we have here are three tables with a total of 20 entries that had to -be constructed. That's compared to 64 entries for a single table. Or -compared to 16 entries for a Huffman tree (six two entry tables and one four -entry table). Assuming that the code ideally represents the probability of -the symbols, it takes on the average 1.25 lookups per symbol. That's compared -to one lookup for the single table, or 1.66 lookups per symbol for the -Huffman tree. - -There, I think that gives you a picture of what's going on. For inflate, the -meaning of a particular symbol is often more than just a letter. It can be a -byte (a "literal"), or it can be either a length or a distance which -indicates a base value and a number of bits to fetch after the code that is -added to the base value. Or it might be the special end-of-block code. The -data structures created in inftrees.c try to encode all that information -compactly in the tables. - - -Jean-loup Gailly Mark Adler -jloup@gzip.org madler@alumni.caltech.edu - - -References: - -[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data -Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3, -pp. 337-343. - -``DEFLATE Compressed Data Format Specification'' available in -http://www.ietf.org/rfc/rfc1951.txt diff --git a/cpukit/zlib/as400/bndsrc b/cpukit/zlib/as400/bndsrc deleted file mode 100644 index 9cf94bb356..0000000000 --- a/cpukit/zlib/as400/bndsrc +++ /dev/null @@ -1,132 +0,0 @@ -STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB') - -/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ -/* Version 1.1.3 entry points. */ -/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ - -/********************************************************************/ -/* *MODULE ADLER32 ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("adler32") - -/********************************************************************/ -/* *MODULE COMPRESS ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("compress") - EXPORT SYMBOL("compress2") - -/********************************************************************/ -/* *MODULE CRC32 ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("crc32") - EXPORT SYMBOL("get_crc_table") - -/********************************************************************/ -/* *MODULE DEFLATE ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("deflate") - EXPORT SYMBOL("deflateEnd") - EXPORT SYMBOL("deflateSetDictionary") - EXPORT SYMBOL("deflateCopy") - EXPORT SYMBOL("deflateReset") - EXPORT SYMBOL("deflateParams") - EXPORT SYMBOL("deflatePrime") - EXPORT SYMBOL("deflateInit_") - EXPORT SYMBOL("deflateInit2_") - -/********************************************************************/ -/* *MODULE GZIO ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("gzopen") - EXPORT SYMBOL("gzdopen") - EXPORT SYMBOL("gzsetparams") - EXPORT SYMBOL("gzread") - EXPORT SYMBOL("gzwrite") - EXPORT SYMBOL("gzprintf") - EXPORT SYMBOL("gzputs") - EXPORT SYMBOL("gzgets") - EXPORT SYMBOL("gzputc") - EXPORT SYMBOL("gzgetc") - EXPORT SYMBOL("gzflush") - EXPORT SYMBOL("gzseek") - EXPORT SYMBOL("gzrewind") - EXPORT SYMBOL("gztell") - EXPORT SYMBOL("gzeof") - EXPORT SYMBOL("gzclose") - EXPORT SYMBOL("gzerror") - -/********************************************************************/ -/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("inflate") - EXPORT SYMBOL("inflateEnd") - EXPORT SYMBOL("inflateSetDictionary") - EXPORT SYMBOL("inflateSync") - EXPORT SYMBOL("inflateReset") - EXPORT SYMBOL("inflateInit_") - EXPORT SYMBOL("inflateInit2_") - EXPORT SYMBOL("inflateSyncPoint") - -/********************************************************************/ -/* *MODULE UNCOMPR ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("uncompress") - -/********************************************************************/ -/* *MODULE ZUTIL ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("zlibVersion") - EXPORT SYMBOL("zError") - -/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ -/* Version 1.2.1 additional entry points. */ -/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/ - -/********************************************************************/ -/* *MODULE COMPRESS ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("compressBound") - -/********************************************************************/ -/* *MODULE DEFLATE ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("deflateBound") - -/********************************************************************/ -/* *MODULE GZIO ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("gzungetc") - EXPORT SYMBOL("gzclearerr") - -/********************************************************************/ -/* *MODULE INFBACK ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("inflateBack") - EXPORT SYMBOL("inflateBackEnd") - EXPORT SYMBOL("inflateBackInit_") - -/********************************************************************/ -/* *MODULE INFLATE ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("inflateCopy") - -/********************************************************************/ -/* *MODULE ZUTIL ZLIB 01/02/01 00:15:09 */ -/********************************************************************/ - - EXPORT SYMBOL("zlibCompileFlags") - -ENDPGMEXP diff --git a/cpukit/zlib/as400/compile.clp b/cpukit/zlib/as400/compile.clp deleted file mode 100644 index 8554951500..0000000000 --- a/cpukit/zlib/as400/compile.clp +++ /dev/null @@ -1,123 +0,0 @@ -/******************************************************************************/ -/* */ -/* ZLIB */ -/* */ -/* Compile sources into modules and link them into a service program. */ -/* */ -/******************************************************************************/ - - PGM - -/* Configuration adjustable parameters. */ - - DCL VAR(&SRCLIB) TYPE(*CHAR) LEN(10) + - VALUE('ZLIB') /* Source library. */ - DCL VAR(&SRCFILE) TYPE(*CHAR) LEN(10) + - VALUE('SOURCES') /* Source member file. */ - DCL VAR(&CTLFILE) TYPE(*CHAR) LEN(10) + - VALUE('TOOLS') /* Control member file. */ - - DCL VAR(&MODLIB) TYPE(*CHAR) LEN(10) + - VALUE('ZLIB') /* Module library. */ - - DCL VAR(&SRVLIB) TYPE(*CHAR) LEN(10) + - VALUE('LGPL') /* Service program library. */ - - DCL VAR(&CFLAGS) TYPE(*CHAR) + - VALUE('OPTIMIZE(40)') /* Compile options. */ - - -/* Working storage. */ - - DCL VAR(&CMDLEN) TYPE(*DEC) LEN(15 5) VALUE(300) /* Command length. */ - DCL VAR(&CMD) TYPE(*CHAR) LEN(512) - - -/* Compile sources into modules. */ - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/ADLER32) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/COMPRESS) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/CRC32) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/DEFLATE) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/GZIO) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/INFBACK) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/INFFAST) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/INFLATE) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/INFTREES) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/TREES) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/UNCOMPR) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - CHGVAR VAR(&CMD) VALUE('CRTCMOD MODULE(' *TCAT &MODLIB *TCAT + - '/ZUTIL) SRCFILE(' *TCAT + - &SRCLIB *TCAT '/' *TCAT &SRCFILE *TCAT + - ') SYSIFCOPT(*IFSIO)' *BCAT &CFLAGS) - CALL PGM(QCMDEXC) PARM(&CMD &CMDLEN) - - -/* Link modules into a service program. */ - - CRTSRVPGM SRVPGM(&SRVLIB/ZLIB) + - MODULE(&MODLIB/ADLER32 &MODLIB/COMPRESS + - &MODLIB/CRC32 &MODLIB/DEFLATE + - &MODLIB/GZIO &MODLIB/INFBACK + - &MODLIB/INFFAST &MODLIB/INFLATE + - &MODLIB/INFTREES &MODLIB/TREES + - &MODLIB/UNCOMPR &MODLIB/ZUTIL) + - SRCFILE(&SRCLIB/&CTLFILE) SRCMBR(BNDSRC) + - TEXT('ZLIB 1.2.3') TGTRLS(V4R4M0) - - ENDPGM diff --git a/cpukit/zlib/as400/readme.txt b/cpukit/zlib/as400/readme.txt deleted file mode 100644 index beae13f565..0000000000 --- a/cpukit/zlib/as400/readme.txt +++ /dev/null @@ -1,111 +0,0 @@ - ZLIB version 1.2.3 for AS400 installation instructions - -I) From an AS400 *SAVF file: - -1) Unpacking archive to an AS400 save file - -On the AS400: - -_ Create the ZLIB AS400 library: - - CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library') - -_ Create a work save file, for example: - - CRTSAVF FILE(ZLIB/ZLIBSAVF) - -On a PC connected to the target AS400: - -_ Unpack the save file image to a PC file "ZLIBSAVF" -_ Upload this file into the save file on the AS400, for example - using ftp in BINARY mode. - - -2) Populating the ZLIB AS400 source library - -On the AS400: - -_ Extract the saved objects into the ZLIB AS400 library using: - -RSTOBJ OBJ(*ALL) SAVLIB(ZLIB) DEV(*SAVF) SAVF(ZLIB/ZLIBSAVF) RSTLIB(ZLIB) - - -3) Customize installation: - -_ Edit CL member ZLIB/TOOLS(COMPILE) and change parameters if needed, - according to the comments. - -_ Compile this member with: - - CRTCLPGM PGM(ZLIB/COMPILE) SRCFILE(ZLIB/TOOLS) SRCMBR(COMPILE) - - -4) Compile and generate the service program: - -_ This can now be done by executing: - - CALL PGM(ZLIB/COMPILE) - - - -II) From the original source distribution: - -1) On the AS400, create the source library: - - CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library') - -2) Create the source files: - - CRTSRCPF FILE(ZLIB/SOURCES) RCDLEN(112) TEXT('ZLIB library modules') - CRTSRCPF FILE(ZLIB/H) RCDLEN(112) TEXT('ZLIB library includes') - CRTSRCPF FILE(ZLIB/TOOLS) RCDLEN(112) TEXT('ZLIB library control utilities') - -3) From the machine hosting the distribution files, upload them (with - FTP in text mode, for example) according to the following table: - - Original AS400 AS400 AS400 AS400 - file file member type description - SOURCES Original ZLIB C subprogram sources - adler32.c ADLER32 C ZLIB - Compute the Adler-32 checksum of a dta strm - compress.c COMPRESS C ZLIB - Compress a memory buffer - crc32.c CRC32 C ZLIB - Compute the CRC-32 of a data stream - deflate.c DEFLATE C ZLIB - Compress data using the deflation algorithm - gzio.c GZIO C ZLIB - IO on .gz files - infback.c INFBACK C ZLIB - Inflate using a callback interface - inffast.c INFFAST C ZLIB - Fast proc. literals & length/distance pairs - inflate.c INFLATE C ZLIB - Interface to inflate modules - inftrees.c INFTREES C ZLIB - Generate Huffman trees for efficient decode - trees.c TREES C ZLIB - Output deflated data using Huffman coding - uncompr.c UNCOMPR C ZLIB - Decompress a memory buffer - zutil.c ZUTIL C ZLIB - Target dependent utility functions - H Original ZLIB C and ILE/RPG include files - crc32.h CRC32 C ZLIB - CRC32 tables - deflate.h DEFLATE C ZLIB - Internal compression state - inffast.h INFFAST C ZLIB - Header to use inffast.c - inffixed.h INFFIXED C ZLIB - Table for decoding fixed codes - inflate.h INFLATE C ZLIB - Internal inflate state definitions - inftrees.h INFTREES C ZLIB - Header to use inftrees.c - trees.h TREES C ZLIB - Created automatically with -DGEN_TREES_H - zconf.h ZCONF C ZLIB - Compression library configuration - zlib.h ZLIB C ZLIB - Compression library C user interface - as400/zlib.inc ZLIB.INC RPGLE ZLIB - Compression library ILE RPG user interface - zutil.h ZUTIL C ZLIB - Internal interface and configuration - TOOLS Building source software & AS/400 README - as400/bndsrc BNDSRC Entry point exportation list - as400/compile.clp COMPILE CLP Compile sources & generate service program - as400/readme.txt README TXT Installation instructions - -4) Continue as in I)3). - - - - -Notes: For AS400 ILE RPG programmers, a /copy member defining the ZLIB - API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC). - Please read comments in this member for more information. - - Remember that most foreign textual data are ASCII coded: this - implementation does not handle conversion from/to ASCII, so - text data code conversions must be done explicitely. - - Always open zipped files in binary mode. diff --git a/cpukit/zlib/as400/zlib.inc b/cpukit/zlib/as400/zlib.inc deleted file mode 100644 index 7bbfb7e417..0000000000 --- a/cpukit/zlib/as400/zlib.inc +++ /dev/null @@ -1,331 +0,0 @@ - * ZLIB.INC - Interface to the general purpose compression library - * - * ILE RPG400 version by Patrick Monnerat, DATASPHERE. - * Version 1.2.3 - * - * - * WARNING: - * Procedures inflateInit(), inflateInit2(), deflateInit(), - * deflateInit2() and inflateBackInit() need to be called with - * two additional arguments: - * the package version string and the stream control structure. - * size. This is needed because RPG lacks some macro feature. - * Call these procedures as: - * inflateInit(...: ZLIB_VERSION: %size(z_stream)) - * - /if not defined(ZLIB_H_) - /define ZLIB_H_ - * - ************************************************************************** - * Constants - ************************************************************************** - * - * Versioning information. - * - D ZLIB_VERSION C '1.2.3' - D ZLIB_VERNUM C X'1230' - * - * Other equates. - * - D Z_NO_FLUSH C 0 - D Z_SYNC_FLUSH C 2 - D Z_FULL_FLUSH C 3 - D Z_FINISH C 4 - D Z_BLOCK C 5 - * - D Z_OK C 0 - D Z_STREAM_END C 1 - D Z_NEED_DICT C 2 - D Z_ERRNO C -1 - D Z_STREAM_ERROR C -2 - D Z_DATA_ERROR C -3 - D Z_MEM_ERROR C -4 - D Z_BUF_ERROR C -5 - DZ_VERSION_ERROR C -6 - * - D Z_NO_COMPRESSION... - D C 0 - D Z_BEST_SPEED C 1 - D Z_BEST_COMPRESSION... - D C 9 - D Z_DEFAULT_COMPRESSION... - D C -1 - * - D Z_FILTERED C 1 - D Z_HUFFMAN_ONLY C 2 - D Z_RLE C 3 - D Z_DEFAULT_STRATEGY... - D C 0 - * - D Z_BINARY C 0 - D Z_ASCII C 1 - D Z_UNKNOWN C 2 - * - D Z_DEFLATED C 8 - * - D Z_NULL C 0 - * - ************************************************************************** - * Types - ************************************************************************** - * - D z_streamp S * Stream struct ptr - D gzFile S * File pointer - D z_off_t S 10i 0 Stream offsets - * - ************************************************************************** - * Structures - ************************************************************************** - * - * The GZIP encode/decode stream support structure. - * - D z_stream DS align based(z_streamp) - D zs_next_in * Next input byte - D zs_avail_in 10U 0 Byte cnt at next_in - D zs_total_in 10U 0 Total bytes read - D zs_next_out * Output buffer ptr - D zs_avail_out 10U 0 Room left @ next_out - D zs_total_out 10U 0 Total bytes written - D zs_msg * Last errmsg or null - D zs_state * Internal state - D zs_zalloc * procptr Int. state allocator - D zs_free * procptr Int. state dealloc. - D zs_opaque * Private alloc. data - D zs_data_type 10i 0 ASC/BIN best guess - D zs_adler 10u 0 Uncompr. adler32 val - D 10U 0 Reserved - D 10U 0 Ptr. alignment - * - ************************************************************************** - * Utility function prototypes - ************************************************************************** - * - D compress PR 10I 0 extproc('compress') - D dest 32767 options(*varsize) Destination buffer - D destLen 10U 0 Destination length - D source 32767 const options(*varsize) Source buffer - D sourceLen 10u 0 value Source length - * - D compress2 PR 10I 0 extproc('compress2') - D dest 32767 options(*varsize) Destination buffer - D destLen 10U 0 Destination length - D source 32767 const options(*varsize) Source buffer - D sourceLen 10U 0 value Source length - D level 10I 0 value Compression level - * - D compressBound PR 10U 0 extproc('compressBound') - D sourceLen 10U 0 value - * - D uncompress PR 10I 0 extproc('uncompress') - D dest 32767 options(*varsize) Destination buffer - D destLen 10U 0 Destination length - D source 32767 const options(*varsize) Source buffer - D sourceLen 10U 0 value Source length - * - D gzopen PR extproc('gzopen') - D like(gzFile) - D path * value options(*string) File pathname - D mode * value options(*string) Open mode - * - D gzdopen PR extproc('gzdopen') - D like(gzFile) - D fd 10i 0 value File descriptor - D mode * value options(*string) Open mode - * - D gzsetparams PR 10I 0 extproc('gzsetparams') - D file value like(gzFile) File pointer - D level 10I 0 value - D strategy 10i 0 value - * - D gzread PR 10I 0 extproc('gzread') - D file value like(gzFile) File pointer - D buf 32767 options(*varsize) Buffer - D len 10u 0 value Buffer length - * - D gzwrite PR 10I 0 extproc('gzwrite') - D file value like(gzFile) File pointer - D buf 32767 const options(*varsize) Buffer - D len 10u 0 value Buffer length - * - D gzputs PR 10I 0 extproc('gzputs') - D file value like(gzFile) File pointer - D s * value options(*string) String to output - * - D gzgets PR * extproc('gzgets') - D file value like(gzFile) File pointer - D buf 32767 options(*varsize) Read buffer - D len 10i 0 value Buffer length - * - D gzflush PR 10i 0 extproc('gzflush') - D file value like(gzFile) File pointer - D flush 10I 0 value Type of flush - * - D gzseek PR extproc('gzseek') - D like(z_off_t) - D file value like(gzFile) File pointer - D offset value like(z_off_t) Offset - D whence 10i 0 value Origin - * - D gzrewind PR 10i 0 extproc('gzrewind') - D file value like(gzFile) File pointer - * - D gztell PR extproc('gztell') - D like(z_off_t) - D file value like(gzFile) File pointer - * - D gzeof PR 10i 0 extproc('gzeof') - D file value like(gzFile) File pointer - * - D gzclose PR 10i 0 extproc('gzclose') - D file value like(gzFile) File pointer - * - D gzerror PR * extproc('gzerror') Error string - D file value like(gzFile) File pointer - D errnum 10I 0 Error code - * - D gzclearerr PR extproc('gzclearerr') - D file value like(gzFile) File pointer - * - ************************************************************************** - * Basic function prototypes - ************************************************************************** - * - D zlibVersion PR * extproc('zlibVersion') Version string - * - D deflateInit PR 10I 0 extproc('deflateInit_') Init. compression - D strm like(z_stream) Compression stream - D level 10I 0 value Compression level - D version * value options(*string) Version string - D stream_size 10i 0 value Stream struct. size - * - D deflate PR 10I 0 extproc('deflate') Compress data - D strm like(z_stream) Compression stream - D flush 10I 0 value Flush type required - * - D deflateEnd PR 10I 0 extproc('deflateEnd') Termin. compression - D strm like(z_stream) Compression stream - * - D inflateInit PR 10I 0 extproc('inflateInit_') Init. expansion - D strm like(z_stream) Expansion stream - D version * value options(*string) Version string - D stream_size 10i 0 value Stream struct. size - * - D inflate PR 10I 0 extproc('inflate') Expand data - D strm like(z_stream) Expansion stream - D flush 10I 0 value Flush type required - * - D inflateEnd PR 10I 0 extproc('inflateEnd') Termin. expansion - D strm like(z_stream) Expansion stream - * - ************************************************************************** - * Advanced function prototypes - ************************************************************************** - * - D deflateInit2 PR 10I 0 extproc('deflateInit2_') Init. compression - D strm like(z_stream) Compression stream - D level 10I 0 value Compression level - D method 10I 0 value Compression method - D windowBits 10I 0 value log2(window size) - D memLevel 10I 0 value Mem/cmpress tradeoff - D strategy 10I 0 value Compression stategy - D version * value options(*string) Version string - D stream_size 10i 0 value Stream struct. size - * - D deflateSetDictionary... - D PR 10I 0 extproc('deflateSetDictionary') Init. dictionary - D strm like(z_stream) Compression stream - D dictionary 32767 const options(*varsize) Dictionary bytes - D dictLength 10U 0 value Dictionary length - * - D deflateCopy PR 10I 0 extproc('deflateCopy') Compress strm 2 strm - D dest like(z_stream) Destination stream - D source like(z_stream) Source stream - * - D deflateReset PR 10I 0 extproc('deflateReset') End and init. stream - D strm like(z_stream) Compression stream - * - D deflateParams PR 10I 0 extproc('deflateParams') Change level & strat - D strm like(z_stream) Compression stream - D level 10I 0 value Compression level - D strategy 10I 0 value Compression stategy - * - D deflateBound PR 10U 0 extproc('deflateBound') Change level & strat - D strm like(z_stream) Compression stream - D sourcelen 10U 0 value Compression level - * - D deflatePrime PR 10I 0 extproc('deflatePrime') Change level & strat - D strm like(z_stream) Compression stream - D bits 10I 0 value Number of bits to insert - D value 10I 0 value Bits to insert - * - D inflateInit2 PR 10I 0 extproc('inflateInit2_') Init. expansion - D strm like(z_stream) Expansion stream - D windowBits 10I 0 value log2(window size) - D version * value options(*string) Version string - D stream_size 10i 0 value Stream struct. size - * - D inflateSetDictionary... - D PR 10I 0 extproc('inflateSetDictionary') Init. dictionary - D strm like(z_stream) Expansion stream - D dictionary 32767 const options(*varsize) Dictionary bytes - D dictLength 10U 0 value Dictionary length - * - D inflateSync PR 10I 0 extproc('inflateSync') Sync. expansion - D strm like(z_stream) Expansion stream - * - D inflateCopy PR 10I 0 extproc('inflateCopy') - D dest like(z_stream) Destination stream - D source like(z_stream) Source stream - * - D inflateReset PR 10I 0 extproc('inflateReset') End and init. stream - D strm like(z_stream) Expansion stream - * - D inflateBackInit... - D PR 10I 0 extproc('inflateBackInit_') - D strm like(z_stream) Expansion stream - D windowBits 10I 0 value Log2(buffer size) - D window 32767 options(*varsize) Buffer - D version * value options(*string) Version string - D stream_size 10i 0 value Stream struct. size - * - D inflateBack PR 10I 0 extproc('inflateBack') - D strm like(z_stream) Expansion stream - D in * value procptr Input function - D in_desc * value Input descriptor - D out * value procptr Output function - D out_desc * value Output descriptor - * - D inflateBackEnd PR 10I 0 extproc('inflateBackEnd') - D strm like(z_stream) Expansion stream - * - D zlibCompileFlags... - D PR 10U 0 extproc('zlibCompileFlags') - * - ************************************************************************** - * Checksum function prototypes - ************************************************************************** - * - D adler32 PR 10U 0 extproc('adler32') New checksum - D adler 10U 0 value Old checksum - D buf 32767 const options(*varsize) Bytes to accumulate - D len 10U 0 value Buffer length - * - D crc32 PR 10U 0 extproc('crc32') New checksum - D crc 10U 0 value Old checksum - D buf 32767 const options(*varsize) Bytes to accumulate - D len 10U 0 value Buffer length - * - ************************************************************************** - * Miscellaneous function prototypes - ************************************************************************** - * - D zError PR * extproc('zError') Error string - D err 10I 0 value Error code - * - D inflateSyncPoint... - D PR 10I 0 extproc('inflateSyncPoint') - D strm like(z_stream) Expansion stream - * - D get_crc_table PR * extproc('get_crc_table') Ptr to ulongs - * - /endif diff --git a/cpukit/zlib/contrib/asm586/README.586 b/cpukit/zlib/contrib/asm586/README.586 deleted file mode 100644 index 6bb78f3206..0000000000 --- a/cpukit/zlib/contrib/asm586/README.586 +++ /dev/null @@ -1,43 +0,0 @@ -This is a patched version of zlib modified to use -Pentium-optimized assembly code in the deflation algorithm. The files -changed/added by this patch are: - -README.586 -match.S - -The effectiveness of these modifications is a bit marginal, as the the -program's bottleneck seems to be mostly L1-cache contention, for which -there is no real way to work around without rewriting the basic -algorithm. The speedup on average is around 5-10% (which is generally -less than the amount of variance between subsequent executions). -However, when used at level 9 compression, the cache contention can -drop enough for the assembly version to achieve 10-20% speedup (and -sometimes more, depending on the amount of overall redundancy in the -files). Even here, though, cache contention can still be the limiting -factor, depending on the nature of the program using the zlib library. -This may also mean that better improvements will be seen on a Pentium -with MMX, which suffers much less from L1-cache contention, but I have -not yet verified this. - -Note that this code has been tailored for the Pentium in particular, -and will not perform well on the Pentium Pro (due to the use of a -partial register in the inner loop). - -If you are using an assembler other than GNU as, you will have to -translate match.S to use your assembler's syntax. (Have fun.) - -Brian Raiter -breadbox@muppetlabs.com -April, 1998 - - -Added for zlib 1.1.3: - -The patches come from -http://www.muppetlabs.com/~breadbox/software/assembly.html - -To compile zlib with this asm file, copy match.S to the zlib directory -then do: - -CFLAGS="-O3 -DASMV" ./configure -make OBJA=match.o diff --git a/cpukit/zlib/contrib/asm586/match.S b/cpukit/zlib/contrib/asm586/match.S deleted file mode 100644 index 0368b35fe3..0000000000 --- a/cpukit/zlib/contrib/asm586/match.S +++ /dev/null @@ -1,364 +0,0 @@ -/* match.s -- Pentium-optimized version of longest_match() - * Written for zlib 1.1.2 - * Copyright (C) 1998 Brian Raiter - * - * This is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License. - */ - -#ifndef NO_UNDERLINE -#define match_init _match_init -#define longest_match _longest_match -#endif - -#define MAX_MATCH (258) -#define MIN_MATCH (3) -#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) -#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) - -/* stack frame offsets */ - -#define wmask 0 /* local copy of s->wmask */ -#define window 4 /* local copy of s->window */ -#define windowbestlen 8 /* s->window + bestlen */ -#define chainlenscanend 12 /* high word: current chain len */ - /* low word: last bytes sought */ -#define scanstart 16 /* first two bytes of string */ -#define scanalign 20 /* dword-misalignment of string */ -#define nicematch 24 /* a good enough match size */ -#define bestlen 28 /* size of best match so far */ -#define scan 32 /* ptr to string wanting match */ - -#define LocalVarsSize (36) -/* saved ebx 36 */ -/* saved edi 40 */ -/* saved esi 44 */ -/* saved ebp 48 */ -/* return address 52 */ -#define deflatestate 56 /* the function arguments */ -#define curmatch 60 - -/* Offsets for fields in the deflate_state structure. These numbers - * are calculated from the definition of deflate_state, with the - * assumption that the compiler will dword-align the fields. (Thus, - * changing the definition of deflate_state could easily cause this - * program to crash horribly, without so much as a warning at - * compile time. Sigh.) - */ - -/* All the +zlib1222add offsets are due to the addition of fields - * in zlib in the deflate_state structure since the asm code was first written - * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)"). - * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0"). - * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8"). - */ - -#define zlib1222add (8) - -#define dsWSize (36+zlib1222add) -#define dsWMask (44+zlib1222add) -#define dsWindow (48+zlib1222add) -#define dsPrev (56+zlib1222add) -#define dsMatchLen (88+zlib1222add) -#define dsPrevMatch (92+zlib1222add) -#define dsStrStart (100+zlib1222add) -#define dsMatchStart (104+zlib1222add) -#define dsLookahead (108+zlib1222add) -#define dsPrevLen (112+zlib1222add) -#define dsMaxChainLen (116+zlib1222add) -#define dsGoodMatch (132+zlib1222add) -#define dsNiceMatch (136+zlib1222add) - - -.file "match.S" - -.globl match_init, longest_match - -.text - -/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ - -longest_match: - -/* Save registers that the compiler may be using, and adjust %esp to */ -/* make room for our stack frame. */ - - pushl %ebp - pushl %edi - pushl %esi - pushl %ebx - subl $LocalVarsSize, %esp - -/* Retrieve the function arguments. %ecx will hold cur_match */ -/* throughout the entire function. %edx will hold the pointer to the */ -/* deflate_state structure during the function's setup (before */ -/* entering the main loop). */ - - movl deflatestate(%esp), %edx - movl curmatch(%esp), %ecx - -/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ - - movl dsNiceMatch(%edx), %eax - movl dsLookahead(%edx), %ebx - cmpl %eax, %ebx - jl LookaheadLess - movl %eax, %ebx -LookaheadLess: movl %ebx, nicematch(%esp) - -/* register Bytef *scan = s->window + s->strstart; */ - - movl dsWindow(%edx), %esi - movl %esi, window(%esp) - movl dsStrStart(%edx), %ebp - lea (%esi,%ebp), %edi - movl %edi, scan(%esp) - -/* Determine how many bytes the scan ptr is off from being */ -/* dword-aligned. */ - - movl %edi, %eax - negl %eax - andl $3, %eax - movl %eax, scanalign(%esp) - -/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ -/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ - - movl dsWSize(%edx), %eax - subl $MIN_LOOKAHEAD, %eax - subl %eax, %ebp - jg LimitPositive - xorl %ebp, %ebp -LimitPositive: - -/* unsigned chain_length = s->max_chain_length; */ -/* if (s->prev_length >= s->good_match) { */ -/* chain_length >>= 2; */ -/* } */ - - movl dsPrevLen(%edx), %eax - movl dsGoodMatch(%edx), %ebx - cmpl %ebx, %eax - movl dsMaxChainLen(%edx), %ebx - jl LastMatchGood - shrl $2, %ebx -LastMatchGood: - -/* chainlen is decremented once beforehand so that the function can */ -/* use the sign flag instead of the zero flag for the exit test. */ -/* It is then shifted into the high word, to make room for the scanend */ -/* scanend value, which it will always accompany. */ - - decl %ebx - shll $16, %ebx - -/* int best_len = s->prev_length; */ - - movl dsPrevLen(%edx), %eax - movl %eax, bestlen(%esp) - -/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ - - addl %eax, %esi - movl %esi, windowbestlen(%esp) - -/* register ush scan_start = *(ushf*)scan; */ -/* register ush scan_end = *(ushf*)(scan+best_len-1); */ - - movw (%edi), %bx - movw %bx, scanstart(%esp) - movw -1(%edi,%eax), %bx - movl %ebx, chainlenscanend(%esp) - -/* Posf *prev = s->prev; */ -/* uInt wmask = s->w_mask; */ - - movl dsPrev(%edx), %edi - movl dsWMask(%edx), %edx - mov %edx, wmask(%esp) - -/* Jump into the main loop. */ - - jmp LoopEntry - -.balign 16 - -/* do { - * match = s->window + cur_match; - * if (*(ushf*)(match+best_len-1) != scan_end || - * *(ushf*)match != scan_start) continue; - * [...] - * } while ((cur_match = prev[cur_match & wmask]) > limit - * && --chain_length != 0); - * - * Here is the inner loop of the function. The function will spend the - * majority of its time in this loop, and majority of that time will - * be spent in the first ten instructions. - * - * Within this loop: - * %ebx = chainlenscanend - i.e., ((chainlen << 16) | scanend) - * %ecx = curmatch - * %edx = curmatch & wmask - * %esi = windowbestlen - i.e., (window + bestlen) - * %edi = prev - * %ebp = limit - * - * Two optimization notes on the choice of instructions: - * - * The first instruction uses a 16-bit address, which costs an extra, - * unpairable cycle. This is cheaper than doing a 32-bit access and - * zeroing the high word, due to the 3-cycle misalignment penalty which - * would occur half the time. This also turns out to be cheaper than - * doing two separate 8-bit accesses, as the memory is so rarely in the - * L1 cache. - * - * The window buffer, however, apparently spends a lot of time in the - * cache, and so it is faster to retrieve the word at the end of the - * match string with two 8-bit loads. The instructions that test the - * word at the beginning of the match string, however, are executed - * much less frequently, and there it was cheaper to use 16-bit - * instructions, which avoided the necessity of saving off and - * subsequently reloading one of the other registers. - */ -LookupLoop: - /* 1 U & V */ - movw (%edi,%edx,2), %cx /* 2 U pipe */ - movl wmask(%esp), %edx /* 2 V pipe */ - cmpl %ebp, %ecx /* 3 U pipe */ - jbe LeaveNow /* 3 V pipe */ - subl $0x00010000, %ebx /* 4 U pipe */ - js LeaveNow /* 4 V pipe */ -LoopEntry: movb -1(%esi,%ecx), %al /* 5 U pipe */ - andl %ecx, %edx /* 5 V pipe */ - cmpb %bl, %al /* 6 U pipe */ - jnz LookupLoop /* 6 V pipe */ - movb (%esi,%ecx), %ah - cmpb %bh, %ah - jnz LookupLoop - movl window(%esp), %eax - movw (%eax,%ecx), %ax - cmpw scanstart(%esp), %ax - jnz LookupLoop - -/* Store the current value of chainlen. */ - - movl %ebx, chainlenscanend(%esp) - -/* Point %edi to the string under scrutiny, and %esi to the string we */ -/* are hoping to match it up with. In actuality, %esi and %edi are */ -/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ -/* initialized to -(MAX_MATCH_8 - scanalign). */ - - movl window(%esp), %esi - movl scan(%esp), %edi - addl %ecx, %esi - movl scanalign(%esp), %eax - movl $(-MAX_MATCH_8), %edx - lea MAX_MATCH_8(%edi,%eax), %edi - lea MAX_MATCH_8(%esi,%eax), %esi - -/* Test the strings for equality, 8 bytes at a time. At the end, - * adjust %edx so that it is offset to the exact byte that mismatched. - * - * We already know at this point that the first three bytes of the - * strings match each other, and they can be safely passed over before - * starting the compare loop. So what this code does is skip over 0-3 - * bytes, as much as necessary in order to dword-align the %edi - * pointer. (%esi will still be misaligned three times out of four.) - * - * It should be confessed that this loop usually does not represent - * much of the total running time. Replacing it with a more - * straightforward "rep cmpsb" would not drastically degrade - * performance. - */ -LoopCmps: - movl (%esi,%edx), %eax - movl (%edi,%edx), %ebx - xorl %ebx, %eax - jnz LeaveLoopCmps - movl 4(%esi,%edx), %eax - movl 4(%edi,%edx), %ebx - xorl %ebx, %eax - jnz LeaveLoopCmps4 - addl $8, %edx - jnz LoopCmps - jmp LenMaximum -LeaveLoopCmps4: addl $4, %edx -LeaveLoopCmps: testl $0x0000FFFF, %eax - jnz LenLower - addl $2, %edx - shrl $16, %eax -LenLower: subb $1, %al - adcl $0, %edx - -/* Calculate the length of the match. If it is longer than MAX_MATCH, */ -/* then automatically accept it as the best possible match and leave. */ - - lea (%edi,%edx), %eax - movl scan(%esp), %edi - subl %edi, %eax - cmpl $MAX_MATCH, %eax - jge LenMaximum - -/* If the length of the match is not longer than the best match we */ -/* have so far, then forget it and return to the lookup loop. */ - - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - cmpl %ebx, %eax - jg LongerMatch - movl chainlenscanend(%esp), %ebx - movl windowbestlen(%esp), %esi - movl dsPrev(%edx), %edi - movl wmask(%esp), %edx - andl %ecx, %edx - jmp LookupLoop - -/* s->match_start = cur_match; */ -/* best_len = len; */ -/* if (len >= nice_match) break; */ -/* scan_end = *(ushf*)(scan+best_len-1); */ - -LongerMatch: movl nicematch(%esp), %ebx - movl %eax, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - cmpl %ebx, %eax - jge LeaveNow - movl window(%esp), %esi - addl %eax, %esi - movl %esi, windowbestlen(%esp) - movl chainlenscanend(%esp), %ebx - movw -1(%edi,%eax), %bx - movl dsPrev(%edx), %edi - movl %ebx, chainlenscanend(%esp) - movl wmask(%esp), %edx - andl %ecx, %edx - jmp LookupLoop - -/* Accept the current string, with the maximum possible length. */ - -LenMaximum: movl deflatestate(%esp), %edx - movl $MAX_MATCH, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - -/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ -/* return s->lookahead; */ - -LeaveNow: - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - movl dsLookahead(%edx), %eax - cmpl %eax, %ebx - jg LookaheadRet - movl %ebx, %eax -LookaheadRet: - -/* Restore the stack and return from whence we came. */ - - addl $LocalVarsSize, %esp - popl %ebx - popl %esi - popl %edi - popl %ebp -match_init: ret diff --git a/cpukit/zlib/contrib/masm686/match.asm b/cpukit/zlib/contrib/masm686/match.asm deleted file mode 100644 index 4b03a71abd..0000000000 --- a/cpukit/zlib/contrib/masm686/match.asm +++ /dev/null @@ -1,413 +0,0 @@ - -; match.asm -- Pentium-Pro optimized version of longest_match() -; -; Updated for zlib 1.1.3 and converted to MASM 6.1x -; Copyright (C) 2000 Dan Higdon -; and Chuck Walbourn -; Corrections by Cosmin Truta -; -; This is free software; you can redistribute it and/or modify it -; under the terms of the GNU General Public License. - -; Based on match.S -; Written for zlib 1.1.2 -; Copyright (C) 1998 Brian Raiter -; -; Modified by Gilles Vollant (2005) for add gzhead and gzindex - - .686P - .MODEL FLAT - -;=========================================================================== -; EQUATES -;=========================================================================== - -MAX_MATCH EQU 258 -MIN_MATCH EQU 3 -MIN_LOOKAHEAD EQU (MAX_MATCH + MIN_MATCH + 1) -MAX_MATCH_8 EQU ((MAX_MATCH + 7) AND (NOT 7)) - -;=========================================================================== -; STRUCTURES -;=========================================================================== - -; This STRUCT assumes a 4-byte alignment - -DEFLATE_STATE STRUCT -ds_strm dd ? -ds_status dd ? -ds_pending_buf dd ? -ds_pending_buf_size dd ? -ds_pending_out dd ? -ds_pending dd ? -ds_wrap dd ? -; gzhead and gzindex are added in zlib 1.2.2.2 (see deflate.h) -ds_gzhead dd ? -ds_gzindex dd ? -ds_data_type db ? -ds_method db ? - db ? ; padding - db ? ; padding -ds_last_flush dd ? -ds_w_size dd ? ; used -ds_w_bits dd ? -ds_w_mask dd ? ; used -ds_window dd ? ; used -ds_window_size dd ? -ds_prev dd ? ; used -ds_head dd ? -ds_ins_h dd ? -ds_hash_size dd ? -ds_hash_bits dd ? -ds_hash_mask dd ? -ds_hash_shift dd ? -ds_block_start dd ? -ds_match_length dd ? ; used -ds_prev_match dd ? ; used -ds_match_available dd ? -ds_strstart dd ? ; used -ds_match_start dd ? ; used -ds_lookahead dd ? ; used -ds_prev_length dd ? ; used -ds_max_chain_length dd ? ; used -ds_max_laxy_match dd ? -ds_level dd ? -ds_strategy dd ? -ds_good_match dd ? ; used -ds_nice_match dd ? ; used - -; Don't need anymore of the struct for match -DEFLATE_STATE ENDS - -;=========================================================================== -; CODE -;=========================================================================== -_TEXT SEGMENT - -;--------------------------------------------------------------------------- -; match_init -;--------------------------------------------------------------------------- - ALIGN 4 -PUBLIC _match_init -_match_init PROC - ; no initialization needed - ret -_match_init ENDP - -;--------------------------------------------------------------------------- -; uInt longest_match(deflate_state *deflatestate, IPos curmatch) -;--------------------------------------------------------------------------- - ALIGN 4 - -PUBLIC _longest_match -_longest_match PROC - -; Since this code uses EBP for a scratch register, the stack frame must -; be manually constructed and referenced relative to the ESP register. - -; Stack image -; Variables -chainlenwmask = 0 ; high word: current chain len - ; low word: s->wmask -window = 4 ; local copy of s->window -windowbestlen = 8 ; s->window + bestlen -scanend = 12 ; last two bytes of string -scanstart = 16 ; first two bytes of string -scanalign = 20 ; dword-misalignment of string -nicematch = 24 ; a good enough match size -bestlen = 28 ; size of best match so far -scan = 32 ; ptr to string wanting match -varsize = 36 ; number of bytes (also offset to last saved register) - -; Saved Registers (actually pushed into place) -ebx_save = 36 -edi_save = 40 -esi_save = 44 -ebp_save = 48 - -; Parameters -retaddr = 52 -deflatestate = 56 -curmatch = 60 - -; Save registers that the compiler may be using - push ebp - push edi - push esi - push ebx - -; Allocate local variable space - sub esp,varsize - -; Retrieve the function arguments. ecx will hold cur_match -; throughout the entire function. edx will hold the pointer to the -; deflate_state structure during the function's setup (before -; entering the main loop). - - mov edx, [esp+deflatestate] -ASSUME edx:PTR DEFLATE_STATE - - mov ecx, [esp+curmatch] - -; uInt wmask = s->w_mask; -; unsigned chain_length = s->max_chain_length; -; if (s->prev_length >= s->good_match) { -; chain_length >>= 2; -; } - - mov eax, [edx].ds_prev_length - mov ebx, [edx].ds_good_match - cmp eax, ebx - mov eax, [edx].ds_w_mask - mov ebx, [edx].ds_max_chain_length - jl SHORT LastMatchGood - shr ebx, 2 -LastMatchGood: - -; chainlen is decremented once beforehand so that the function can -; use the sign flag instead of the zero flag for the exit test. -; It is then shifted into the high word, to make room for the wmask -; value, which it will always accompany. - - dec ebx - shl ebx, 16 - or ebx, eax - mov [esp+chainlenwmask], ebx - -; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - mov eax, [edx].ds_nice_match - mov ebx, [edx].ds_lookahead - cmp ebx, eax - jl SHORT LookaheadLess - mov ebx, eax -LookaheadLess: - mov [esp+nicematch], ebx - -;/* register Bytef *scan = s->window + s->strstart; */ - - mov esi, [edx].ds_window - mov [esp+window], esi - mov ebp, [edx].ds_strstart - lea edi, [esi+ebp] - mov [esp+scan],edi - -;/* Determine how many bytes the scan ptr is off from being */ -;/* dword-aligned. */ - - mov eax, edi - neg eax - and eax, 3 - mov [esp+scanalign], eax - -;/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ -;/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ - - mov eax, [edx].ds_w_size - sub eax, MIN_LOOKAHEAD - sub ebp, eax - jg SHORT LimitPositive - xor ebp, ebp -LimitPositive: - -;/* int best_len = s->prev_length; */ - - mov eax, [edx].ds_prev_length - mov [esp+bestlen], eax - -;/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ - - add esi, eax - mov [esp+windowbestlen], esi - -;/* register ush scan_start = *(ushf*)scan; */ -;/* register ush scan_end = *(ushf*)(scan+best_len-1); */ -;/* Posf *prev = s->prev; */ - - movzx ebx, WORD PTR[edi] - mov [esp+scanstart], ebx - movzx ebx, WORD PTR[eax+edi-1] - mov [esp+scanend], ebx - mov edi, [edx].ds_prev - -;/* Jump into the main loop. */ - - mov edx, [esp+chainlenwmask] - jmp SHORT LoopEntry - -;/* do { -; * match = s->window + cur_match; -; * if (*(ushf*)(match+best_len-1) != scan_end || -; * *(ushf*)match != scan_start) continue; -; * [...] -; * } while ((cur_match = prev[cur_match & wmask]) > limit -; * && --chain_length != 0); -; * -; * Here is the inner loop of the function. The function will spend the -; * majority of its time in this loop, and majority of that time will -; * be spent in the first ten instructions. -; * -; * Within this loop: -; * %ebx = scanend -; * %ecx = curmatch -; * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) -; * %esi = windowbestlen - i.e., (window + bestlen) -; * %edi = prev -; * %ebp = limit -; */ - - ALIGN 4 -LookupLoop: - and ecx, edx - movzx ecx, WORD PTR[edi+ecx*2] - cmp ecx, ebp - jbe LeaveNow - sub edx, 000010000H - js LeaveNow - -LoopEntry: - movzx eax, WORD PTR[esi+ecx-1] - cmp eax, ebx - jnz SHORT LookupLoop - - mov eax, [esp+window] - movzx eax, WORD PTR[eax+ecx] - cmp eax, [esp+scanstart] - jnz SHORT LookupLoop - -;/* Store the current value of chainlen. */ - - mov [esp+chainlenwmask], edx - -;/* Point %edi to the string under scrutiny, and %esi to the string we */ -;/* are hoping to match it up with. In actuality, %esi and %edi are */ -;/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ -;/* initialized to -(MAX_MATCH_8 - scanalign). */ - - mov esi, [esp+window] - mov edi, [esp+scan] - add esi, ecx - mov eax, [esp+scanalign] - mov edx, -MAX_MATCH_8 - lea edi, [edi+eax+MAX_MATCH_8] - lea esi, [esi+eax+MAX_MATCH_8] - -;/* Test the strings for equality, 8 bytes at a time. At the end, -; * adjust %edx so that it is offset to the exact byte that mismatched. -; * -; * We already know at this point that the first three bytes of the -; * strings match each other, and they can be safely passed over before -; * starting the compare loop. So what this code does is skip over 0-3 -; * bytes, as much as necessary in order to dword-align the %edi -; * pointer. (%esi will still be misaligned three times out of four.) -; * -; * It should be confessed that this loop usually does not represent -; * much of the total running time. Replacing it with a more -; * straightforward "rep cmpsb" would not drastically degrade -; * performance. -; */ - -LoopCmps: - mov eax, DWORD PTR[esi+edx] - xor eax, DWORD PTR[edi+edx] - jnz SHORT LeaveLoopCmps - - mov eax, DWORD PTR[esi+edx+4] - xor eax, DWORD PTR[edi+edx+4] - jnz SHORT LeaveLoopCmps4 - - add edx, 8 - jnz SHORT LoopCmps - jmp LenMaximum - ALIGN 4 - -LeaveLoopCmps4: - add edx, 4 - -LeaveLoopCmps: - test eax, 00000FFFFH - jnz SHORT LenLower - - add edx, 2 - shr eax, 16 - -LenLower: - sub al, 1 - adc edx, 0 - -;/* Calculate the length of the match. If it is longer than MAX_MATCH, */ -;/* then automatically accept it as the best possible match and leave. */ - - lea eax, [edi+edx] - mov edi, [esp+scan] - sub eax, edi - cmp eax, MAX_MATCH - jge SHORT LenMaximum - -;/* If the length of the match is not longer than the best match we */ -;/* have so far, then forget it and return to the lookup loop. */ - - mov edx, [esp+deflatestate] - mov ebx, [esp+bestlen] - cmp eax, ebx - jg SHORT LongerMatch - mov esi, [esp+windowbestlen] - mov edi, [edx].ds_prev - mov ebx, [esp+scanend] - mov edx, [esp+chainlenwmask] - jmp LookupLoop - ALIGN 4 - -;/* s->match_start = cur_match; */ -;/* best_len = len; */ -;/* if (len >= nice_match) break; */ -;/* scan_end = *(ushf*)(scan+best_len-1); */ - -LongerMatch: - mov ebx, [esp+nicematch] - mov [esp+bestlen], eax - mov [edx].ds_match_start, ecx - cmp eax, ebx - jge SHORT LeaveNow - mov esi, [esp+window] - add esi, eax - mov [esp+windowbestlen], esi - movzx ebx, WORD PTR[edi+eax-1] - mov edi, [edx].ds_prev - mov [esp+scanend], ebx - mov edx, [esp+chainlenwmask] - jmp LookupLoop - ALIGN 4 - -;/* Accept the current string, with the maximum possible length. */ - -LenMaximum: - mov edx, [esp+deflatestate] - mov DWORD PTR[esp+bestlen], MAX_MATCH - mov [edx].ds_match_start, ecx - -;/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ -;/* return s->lookahead; */ - -LeaveNow: - mov edx, [esp+deflatestate] - mov ebx, [esp+bestlen] - mov eax, [edx].ds_lookahead - cmp ebx, eax - jg SHORT LookaheadRet - mov eax, ebx -LookaheadRet: - -; Restore the stack and return from whence we came. - - add esp, varsize - pop ebx - pop esi - pop edi - pop ebp - ret - -_longest_match ENDP - -_TEXT ENDS -END diff --git a/cpukit/zlib/contrib/masmx64/inffasx64.obj b/cpukit/zlib/contrib/masmx64/inffasx64.obj deleted file mode 100644 index 8df5d82616..0000000000 Binary files a/cpukit/zlib/contrib/masmx64/inffasx64.obj and /dev/null differ diff --git a/cpukit/zlib/contrib/masmx86/gvmat32.asm b/cpukit/zlib/contrib/masmx86/gvmat32.asm deleted file mode 100644 index 874bb2d482..0000000000 --- a/cpukit/zlib/contrib/masmx86/gvmat32.asm +++ /dev/null @@ -1,972 +0,0 @@ -; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86 -; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. -; File written by Gilles Vollant, by modifiying the longest_match -; from Jean-loup Gailly in deflate.c -; -; http://www.zlib.net -; http://www.winimage.com/zLibDll -; http://www.muppetlabs.com/~breadbox/software/assembly.html -; -; For Visual C++ 4.x and higher and ML 6.x and higher -; ml.exe is in directory \MASM611C of Win95 DDK -; ml.exe is also distributed in http://www.masm32.com/masmdl.htm -; and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/ -; -; this file contain two implementation of longest_match -; -; longest_match_7fff : written 1996 by Gilles Vollant optimized for -; first Pentium. Assume s->w_mask == 0x7fff -; longest_match_686 : written by Brian raiter (1998), optimized for Pentium Pro -; -; for using an seembly version of longest_match, you need define ASMV in project -; There is two way in using gvmat32.asm -; -; A) Suggested method -; if you want include both longest_match_7fff and longest_match_686 -; compile the asm file running -; ml /coff /Zi /Flgvmat32.lst /c gvmat32.asm -; and include gvmat32c.c in your project -; if you have an old cpu (386,486 or first Pentium) and s->w_mask==0x7fff, -; longest_match_7fff will be used -; if you have a more modern CPU (Pentium Pro, II and higher) -; longest_match_686 will be used -; on old cpu with s->w_mask!=0x7fff, longest_match_686 will be used, -; but this is not a sitation you'll find often -; -; B) Alternative -; if you are not interresed in old cpu performance and want the smaller -; binaries possible -; -; compile the asm file running -; ml /coff /Zi /c /Flgvmat32.lst /DNOOLDPENTIUMCODE gvmat32.asm -; and do not include gvmat32c.c in your project (ou define also -; NOOLDPENTIUMCODE) -; -; note : as I known, longest_match_686 is very faster than longest_match_7fff -; on pentium Pro/II/III, faster (but less) in P4, but it seem -; longest_match_7fff can be faster (very very litte) on AMD Athlon64/K8 -; -; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2 - -;uInt longest_match_7fff(s, cur_match) -; deflate_state *s; -; IPos cur_match; /* current match */ - - NbStack equ 76 - cur_match equ dword ptr[esp+NbStack-0] - str_s equ dword ptr[esp+NbStack-4] -; 5 dword on top (ret,ebp,esi,edi,ebx) - adrret equ dword ptr[esp+NbStack-8] - pushebp equ dword ptr[esp+NbStack-12] - pushedi equ dword ptr[esp+NbStack-16] - pushesi equ dword ptr[esp+NbStack-20] - pushebx equ dword ptr[esp+NbStack-24] - - chain_length equ dword ptr [esp+NbStack-28] - limit equ dword ptr [esp+NbStack-32] - best_len equ dword ptr [esp+NbStack-36] - window equ dword ptr [esp+NbStack-40] - prev equ dword ptr [esp+NbStack-44] - scan_start equ word ptr [esp+NbStack-48] - wmask equ dword ptr [esp+NbStack-52] - match_start_ptr equ dword ptr [esp+NbStack-56] - nice_match equ dword ptr [esp+NbStack-60] - scan equ dword ptr [esp+NbStack-64] - - windowlen equ dword ptr [esp+NbStack-68] - match_start equ dword ptr [esp+NbStack-72] - strend equ dword ptr [esp+NbStack-76] - NbStackAdd equ (NbStack-24) - - .386p - - name gvmatch - .MODEL FLAT - - - -; all the +zlib1222add offsets are due to the addition of fields -; in zlib in the deflate_state structure since the asm code was first written -; (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)"). -; (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0"). -; if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8"). - - zlib1222add equ 8 - -; Note : these value are good with a 8 bytes boundary pack structure - dep_chain_length equ 74h+zlib1222add - dep_window equ 30h+zlib1222add - dep_strstart equ 64h+zlib1222add - dep_prev_length equ 70h+zlib1222add - dep_nice_match equ 88h+zlib1222add - dep_w_size equ 24h+zlib1222add - dep_prev equ 38h+zlib1222add - dep_w_mask equ 2ch+zlib1222add - dep_good_match equ 84h+zlib1222add - dep_match_start equ 68h+zlib1222add - dep_lookahead equ 6ch+zlib1222add - - -_TEXT segment - -IFDEF NOUNDERLINE - IFDEF NOOLDPENTIUMCODE - public longest_match - public match_init - ELSE - public longest_match_7fff - public cpudetect32 - public longest_match_686 - ENDIF -ELSE - IFDEF NOOLDPENTIUMCODE - public _longest_match - public _match_init - ELSE - public _longest_match_7fff - public _cpudetect32 - public _longest_match_686 - ENDIF -ENDIF - - MAX_MATCH equ 258 - MIN_MATCH equ 3 - MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1) - - - -IFNDEF NOOLDPENTIUMCODE -IFDEF NOUNDERLINE -longest_match_7fff proc near -ELSE -_longest_match_7fff proc near -ENDIF - - mov edx,[esp+4] - - - - push ebp - push edi - push esi - push ebx - - sub esp,NbStackAdd - -; initialize or check the variables used in match.asm. - mov ebp,edx - -; chain_length = s->max_chain_length -; if (prev_length>=good_match) chain_length >>= 2 - mov edx,[ebp+dep_chain_length] - mov ebx,[ebp+dep_prev_length] - cmp [ebp+dep_good_match],ebx - ja noshr - shr edx,2 -noshr: -; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop - inc edx - mov edi,[ebp+dep_nice_match] - mov chain_length,edx - mov eax,[ebp+dep_lookahead] - cmp eax,edi -; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - jae nolookaheadnicematch - mov edi,eax -nolookaheadnicematch: -; best_len = s->prev_length - mov best_len,ebx - -; window = s->window - mov esi,[ebp+dep_window] - mov ecx,[ebp+dep_strstart] - mov window,esi - - mov nice_match,edi -; scan = window + strstart - add esi,ecx - mov scan,esi -; dx = *window - mov dx,word ptr [esi] -; bx = *(window+best_len-1) - mov bx,word ptr [esi+ebx-1] - add esi,MAX_MATCH-1 -; scan_start = *scan - mov scan_start,dx -; strend = scan + MAX_MATCH-1 - mov strend,esi -; bx = scan_end = *(window+best_len-1) - -; IPos limit = s->strstart > (IPos)MAX_DIST(s) ? -; s->strstart - (IPos)MAX_DIST(s) : NIL; - - mov esi,[ebp+dep_w_size] - sub esi,MIN_LOOKAHEAD -; here esi = MAX_DIST(s) - sub ecx,esi - ja nodist - xor ecx,ecx -nodist: - mov limit,ecx - -; prev = s->prev - mov edx,[ebp+dep_prev] - mov prev,edx - -; - mov edx,dword ptr [ebp+dep_match_start] - mov bp,scan_start - mov eax,cur_match - mov match_start,edx - - mov edx,window - mov edi,edx - add edi,best_len - mov esi,prev - dec edi -; windowlen = window + best_len -1 - mov windowlen,edi - - jmp beginloop2 - align 4 - -; here, in the loop -; eax = ax = cur_match -; ecx = limit -; bx = scan_end -; bp = scan_start -; edi = windowlen (window + best_len -1) -; esi = prev - - -;// here; chain_length <=16 -normalbeg0add16: - add chain_length,16 - jz exitloop -normalbeg0: - cmp word ptr[edi+eax],bx - je normalbeg2noroll -rcontlabnoroll: -; cur_match = prev[cur_match & wmask] - and eax,7fffh - mov ax,word ptr[esi+eax*2] -; if cur_match > limit, go to exitloop - cmp ecx,eax - jnb exitloop -; if --chain_length != 0, go to exitloop - dec chain_length - jnz normalbeg0 - jmp exitloop - -normalbeg2noroll: -; if (scan_start==*(cur_match+window)) goto normalbeg2 - cmp bp,word ptr[edx+eax] - jne rcontlabnoroll - jmp normalbeg2 - -contloop3: - mov edi,windowlen - -; cur_match = prev[cur_match & wmask] - and eax,7fffh - mov ax,word ptr[esi+eax*2] -; if cur_match > limit, go to exitloop - cmp ecx,eax -jnbexitloopshort1: - jnb exitloop -; if --chain_length != 0, go to exitloop - - -; begin the main loop -beginloop2: - sub chain_length,16+1 -; if chain_length <=16, don't use the unrolled loop - jna normalbeg0add16 - -do16: - cmp word ptr[edi+eax],bx - je normalbeg2dc0 - -maccn MACRO lab - and eax,7fffh - mov ax,word ptr[esi+eax*2] - cmp ecx,eax - jnb exitloop - cmp word ptr[edi+eax],bx - je lab - ENDM - -rcontloop0: - maccn normalbeg2dc1 - -rcontloop1: - maccn normalbeg2dc2 - -rcontloop2: - maccn normalbeg2dc3 - -rcontloop3: - maccn normalbeg2dc4 - -rcontloop4: - maccn normalbeg2dc5 - -rcontloop5: - maccn normalbeg2dc6 - -rcontloop6: - maccn normalbeg2dc7 - -rcontloop7: - maccn normalbeg2dc8 - -rcontloop8: - maccn normalbeg2dc9 - -rcontloop9: - maccn normalbeg2dc10 - -rcontloop10: - maccn short normalbeg2dc11 - -rcontloop11: - maccn short normalbeg2dc12 - -rcontloop12: - maccn short normalbeg2dc13 - -rcontloop13: - maccn short normalbeg2dc14 - -rcontloop14: - maccn short normalbeg2dc15 - -rcontloop15: - and eax,7fffh - mov ax,word ptr[esi+eax*2] - cmp ecx,eax - jnb exitloop - - sub chain_length,16 - ja do16 - jmp normalbeg0add16 - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; - -normbeg MACRO rcontlab,valsub -; if we are here, we know that *(match+best_len-1) == scan_end - cmp bp,word ptr[edx+eax] -; if (match != scan_start) goto rcontlab - jne rcontlab -; calculate the good chain_length, and we'll compare scan and match string - add chain_length,16-valsub - jmp iseq - ENDM - - -normalbeg2dc11: - normbeg rcontloop11,11 - -normalbeg2dc12: - normbeg short rcontloop12,12 - -normalbeg2dc13: - normbeg short rcontloop13,13 - -normalbeg2dc14: - normbeg short rcontloop14,14 - -normalbeg2dc15: - normbeg short rcontloop15,15 - -normalbeg2dc10: - normbeg rcontloop10,10 - -normalbeg2dc9: - normbeg rcontloop9,9 - -normalbeg2dc8: - normbeg rcontloop8,8 - -normalbeg2dc7: - normbeg rcontloop7,7 - -normalbeg2dc6: - normbeg rcontloop6,6 - -normalbeg2dc5: - normbeg rcontloop5,5 - -normalbeg2dc4: - normbeg rcontloop4,4 - -normalbeg2dc3: - normbeg rcontloop3,3 - -normalbeg2dc2: - normbeg rcontloop2,2 - -normalbeg2dc1: - normbeg rcontloop1,1 - -normalbeg2dc0: - normbeg rcontloop0,0 - - -; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end - -normalbeg2: - mov edi,window - - cmp bp,word ptr[edi+eax] - jne contloop3 ; if *(ushf*)match != scan_start, continue - -iseq: -; if we are here, we know that *(match+best_len-1) == scan_end -; and (match == scan_start) - - mov edi,edx - mov esi,scan ; esi = scan - add edi,eax ; edi = window + cur_match = match - - mov edx,[esi+3] ; compare manually dword at match+3 - xor edx,[edi+3] ; and scan +3 - - jz begincompare ; if equal, go to long compare - -; we will determine the unmatch byte and calculate len (in esi) - or dl,dl - je eq1rr - mov esi,3 - jmp trfinval -eq1rr: - or dx,dx - je eq1 - - mov esi,4 - jmp trfinval -eq1: - and edx,0ffffffh - jz eq11 - mov esi,5 - jmp trfinval -eq11: - mov esi,6 - jmp trfinval - -begincompare: - ; here we now scan and match begin same - add edi,6 - add esi,6 - mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes - repe cmpsd ; loop until mismatch - - je trfin ; go to trfin if not unmatch -; we determine the unmatch byte - sub esi,4 - mov edx,[edi-4] - xor edx,[esi] - - or dl,dl - jnz trfin - inc esi - - or dx,dx - jnz trfin - inc esi - - and edx,0ffffffh - jnz trfin - inc esi - -trfin: - sub esi,scan ; esi = len -trfinval: -; here we have finised compare, and esi contain len of equal string - cmp esi,best_len ; if len > best_len, go newbestlen - ja short newbestlen -; now we restore edx, ecx and esi, for the big loop - mov esi,prev - mov ecx,limit - mov edx,window - jmp contloop3 - -newbestlen: - mov best_len,esi ; len become best_len - - mov match_start,eax ; save new position as match_start - cmp esi,nice_match ; if best_len >= nice_match, exit - jae exitloop - mov ecx,scan - mov edx,window ; restore edx=window - add ecx,esi - add esi,edx - - dec esi - mov windowlen,esi ; windowlen = window + best_len-1 - mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end - -; now we restore ecx and esi, for the big loop : - mov esi,prev - mov ecx,limit - jmp contloop3 - -exitloop: -; exit : s->match_start=match_start - mov ebx,match_start - mov ebp,str_s - mov ecx,best_len - mov dword ptr [ebp+dep_match_start],ebx - mov eax,dword ptr [ebp+dep_lookahead] - cmp ecx,eax - ja minexlo - mov eax,ecx -minexlo: -; return min(best_len,s->lookahead) - -; restore stack and register ebx,esi,edi,ebp - add esp,NbStackAdd - - pop ebx - pop esi - pop edi - pop ebp - ret -InfoAuthor: -; please don't remove this string ! -; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary! - db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah - - - -IFDEF NOUNDERLINE -longest_match_7fff endp -ELSE -_longest_match_7fff endp -ENDIF - - -IFDEF NOUNDERLINE -cpudetect32 proc near -ELSE -_cpudetect32 proc near -ENDIF - - push ebx - - pushfd ; push original EFLAGS - pop eax ; get original EFLAGS - mov ecx, eax ; save original EFLAGS - xor eax, 40000h ; flip AC bit in EFLAGS - push eax ; save new EFLAGS value on stack - popfd ; replace current EFLAGS value - pushfd ; get new EFLAGS - pop eax ; store new EFLAGS in EAX - xor eax, ecx ; can’t toggle AC bit, processor=80386 - jz end_cpu_is_386 ; jump if 80386 processor - push ecx - popfd ; restore AC bit in EFLAGS first - - pushfd - pushfd - pop ecx - - mov eax, ecx ; get original EFLAGS - xor eax, 200000h ; flip ID bit in EFLAGS - push eax ; save new EFLAGS value on stack - popfd ; replace current EFLAGS value - pushfd ; get new EFLAGS - pop eax ; store new EFLAGS in EAX - popfd ; restore original EFLAGS - xor eax, ecx ; can’t toggle ID bit, - je is_old_486 ; processor=old - - mov eax,1 - db 0fh,0a2h ;CPUID - -exitcpudetect: - pop ebx - ret - -end_cpu_is_386: - mov eax,0300h - jmp exitcpudetect - -is_old_486: - mov eax,0400h - jmp exitcpudetect - -IFDEF NOUNDERLINE -cpudetect32 endp -ELSE -_cpudetect32 endp -ENDIF -ENDIF - -MAX_MATCH equ 258 -MIN_MATCH equ 3 -MIN_LOOKAHEAD equ (MAX_MATCH + MIN_MATCH + 1) -MAX_MATCH_8_ equ ((MAX_MATCH + 7) AND 0FFF0h) - - -;;; stack frame offsets - -chainlenwmask equ esp + 0 ; high word: current chain len - ; low word: s->wmask -window equ esp + 4 ; local copy of s->window -windowbestlen equ esp + 8 ; s->window + bestlen -scanstart equ esp + 16 ; first two bytes of string -scanend equ esp + 12 ; last two bytes of string -scanalign equ esp + 20 ; dword-misalignment of string -nicematch equ esp + 24 ; a good enough match size -bestlen equ esp + 28 ; size of best match so far -scan equ esp + 32 ; ptr to string wanting match - -LocalVarsSize equ 36 -; saved ebx byte esp + 36 -; saved edi byte esp + 40 -; saved esi byte esp + 44 -; saved ebp byte esp + 48 -; return address byte esp + 52 -deflatestate equ esp + 56 ; the function arguments -curmatch equ esp + 60 - -;;; Offsets for fields in the deflate_state structure. These numbers -;;; are calculated from the definition of deflate_state, with the -;;; assumption that the compiler will dword-align the fields. (Thus, -;;; changing the definition of deflate_state could easily cause this -;;; program to crash horribly, without so much as a warning at -;;; compile time. Sigh.) - -dsWSize equ 36+zlib1222add -dsWMask equ 44+zlib1222add -dsWindow equ 48+zlib1222add -dsPrev equ 56+zlib1222add -dsMatchLen equ 88+zlib1222add -dsPrevMatch equ 92+zlib1222add -dsStrStart equ 100+zlib1222add -dsMatchStart equ 104+zlib1222add -dsLookahead equ 108+zlib1222add -dsPrevLen equ 112+zlib1222add -dsMaxChainLen equ 116+zlib1222add -dsGoodMatch equ 132+zlib1222add -dsNiceMatch equ 136+zlib1222add - - -;;; match.asm -- Pentium-Pro-optimized version of longest_match() -;;; Written for zlib 1.1.2 -;;; Copyright (C) 1998 Brian Raiter -;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html -;;; -;;; This is free software; you can redistribute it and/or modify it -;;; under the terms of the GNU General Public License. - -;GLOBAL _longest_match, _match_init - - -;SECTION .text - -;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch) - -;_longest_match: -IFDEF NOOLDPENTIUMCODE - IFDEF NOUNDERLINE - longest_match proc near - ELSE - _longest_match proc near - ENDIF -ELSE - IFDEF NOUNDERLINE - longest_match_686 proc near - ELSE - _longest_match_686 proc near - ENDIF -ENDIF - -;;; Save registers that the compiler may be using, and adjust esp to -;;; make room for our stack frame. - - push ebp - push edi - push esi - push ebx - sub esp, LocalVarsSize - -;;; Retrieve the function arguments. ecx will hold cur_match -;;; throughout the entire function. edx will hold the pointer to the -;;; deflate_state structure during the function's setup (before -;;; entering the main loop. - - mov edx, [deflatestate] - mov ecx, [curmatch] - -;;; uInt wmask = s->w_mask; -;;; unsigned chain_length = s->max_chain_length; -;;; if (s->prev_length >= s->good_match) { -;;; chain_length >>= 2; -;;; } - - mov eax, [edx + dsPrevLen] - mov ebx, [edx + dsGoodMatch] - cmp eax, ebx - mov eax, [edx + dsWMask] - mov ebx, [edx + dsMaxChainLen] - jl LastMatchGood - shr ebx, 2 -LastMatchGood: - -;;; chainlen is decremented once beforehand so that the function can -;;; use the sign flag instead of the zero flag for the exit test. -;;; It is then shifted into the high word, to make room for the wmask -;;; value, which it will always accompany. - - dec ebx - shl ebx, 16 - or ebx, eax - mov [chainlenwmask], ebx - -;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - mov eax, [edx + dsNiceMatch] - mov ebx, [edx + dsLookahead] - cmp ebx, eax - jl LookaheadLess - mov ebx, eax -LookaheadLess: mov [nicematch], ebx - -;;; register Bytef *scan = s->window + s->strstart; - - mov esi, [edx + dsWindow] - mov [window], esi - mov ebp, [edx + dsStrStart] - lea edi, [esi + ebp] - mov [scan], edi - -;;; Determine how many bytes the scan ptr is off from being -;;; dword-aligned. - - mov eax, edi - neg eax - and eax, 3 - mov [scanalign], eax - -;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ? -;;; s->strstart - (IPos)MAX_DIST(s) : NIL; - - mov eax, [edx + dsWSize] - sub eax, MIN_LOOKAHEAD - sub ebp, eax - jg LimitPositive - xor ebp, ebp -LimitPositive: - -;;; int best_len = s->prev_length; - - mov eax, [edx + dsPrevLen] - mov [bestlen], eax - -;;; Store the sum of s->window + best_len in esi locally, and in esi. - - add esi, eax - mov [windowbestlen], esi - -;;; register ush scan_start = *(ushf*)scan; -;;; register ush scan_end = *(ushf*)(scan+best_len-1); -;;; Posf *prev = s->prev; - - movzx ebx, word ptr [edi] - mov [scanstart], ebx - movzx ebx, word ptr [edi + eax - 1] - mov [scanend], ebx - mov edi, [edx + dsPrev] - -;;; Jump into the main loop. - - mov edx, [chainlenwmask] - jmp short LoopEntry - -align 4 - -;;; do { -;;; match = s->window + cur_match; -;;; if (*(ushf*)(match+best_len-1) != scan_end || -;;; *(ushf*)match != scan_start) continue; -;;; [...] -;;; } while ((cur_match = prev[cur_match & wmask]) > limit -;;; && --chain_length != 0); -;;; -;;; Here is the inner loop of the function. The function will spend the -;;; majority of its time in this loop, and majority of that time will -;;; be spent in the first ten instructions. -;;; -;;; Within this loop: -;;; ebx = scanend -;;; ecx = curmatch -;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) -;;; esi = windowbestlen - i.e., (window + bestlen) -;;; edi = prev -;;; ebp = limit - -LookupLoop: - and ecx, edx - movzx ecx, word ptr [edi + ecx*2] - cmp ecx, ebp - jbe LeaveNow - sub edx, 00010000h - js LeaveNow -LoopEntry: movzx eax, word ptr [esi + ecx - 1] - cmp eax, ebx - jnz LookupLoop - mov eax, [window] - movzx eax, word ptr [eax + ecx] - cmp eax, [scanstart] - jnz LookupLoop - -;;; Store the current value of chainlen. - - mov [chainlenwmask], edx - -;;; Point edi to the string under scrutiny, and esi to the string we -;;; are hoping to match it up with. In actuality, esi and edi are -;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is -;;; initialized to -(MAX_MATCH_8 - scanalign). - - mov esi, [window] - mov edi, [scan] - add esi, ecx - mov eax, [scanalign] - mov edx, 0fffffef8h; -(MAX_MATCH_8) - lea edi, [edi + eax + 0108h] ;MAX_MATCH_8] - lea esi, [esi + eax + 0108h] ;MAX_MATCH_8] - -;;; Test the strings for equality, 8 bytes at a time. At the end, -;;; adjust edx so that it is offset to the exact byte that mismatched. -;;; -;;; We already know at this point that the first three bytes of the -;;; strings match each other, and they can be safely passed over before -;;; starting the compare loop. So what this code does is skip over 0-3 -;;; bytes, as much as necessary in order to dword-align the edi -;;; pointer. (esi will still be misaligned three times out of four.) -;;; -;;; It should be confessed that this loop usually does not represent -;;; much of the total running time. Replacing it with a more -;;; straightforward "rep cmpsb" would not drastically degrade -;;; performance. - -LoopCmps: - mov eax, [esi + edx] - xor eax, [edi + edx] - jnz LeaveLoopCmps - mov eax, [esi + edx + 4] - xor eax, [edi + edx + 4] - jnz LeaveLoopCmps4 - add edx, 8 - jnz LoopCmps - jmp short LenMaximum -LeaveLoopCmps4: add edx, 4 -LeaveLoopCmps: test eax, 0000FFFFh - jnz LenLower - add edx, 2 - shr eax, 16 -LenLower: sub al, 1 - adc edx, 0 - -;;; Calculate the length of the match. If it is longer than MAX_MATCH, -;;; then automatically accept it as the best possible match and leave. - - lea eax, [edi + edx] - mov edi, [scan] - sub eax, edi - cmp eax, MAX_MATCH - jge LenMaximum - -;;; If the length of the match is not longer than the best match we -;;; have so far, then forget it and return to the lookup loop. - - mov edx, [deflatestate] - mov ebx, [bestlen] - cmp eax, ebx - jg LongerMatch - mov esi, [windowbestlen] - mov edi, [edx + dsPrev] - mov ebx, [scanend] - mov edx, [chainlenwmask] - jmp LookupLoop - -;;; s->match_start = cur_match; -;;; best_len = len; -;;; if (len >= nice_match) break; -;;; scan_end = *(ushf*)(scan+best_len-1); - -LongerMatch: mov ebx, [nicematch] - mov [bestlen], eax - mov [edx + dsMatchStart], ecx - cmp eax, ebx - jge LeaveNow - mov esi, [window] - add esi, eax - mov [windowbestlen], esi - movzx ebx, word ptr [edi + eax - 1] - mov edi, [edx + dsPrev] - mov [scanend], ebx - mov edx, [chainlenwmask] - jmp LookupLoop - -;;; Accept the current string, with the maximum possible length. - -LenMaximum: mov edx, [deflatestate] - mov dword ptr [bestlen], MAX_MATCH - mov [edx + dsMatchStart], ecx - -;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len; -;;; return s->lookahead; - -LeaveNow: - mov edx, [deflatestate] - mov ebx, [bestlen] - mov eax, [edx + dsLookahead] - cmp ebx, eax - jg LookaheadRet - mov eax, ebx -LookaheadRet: - -;;; Restore the stack and return from whence we came. - - add esp, LocalVarsSize - pop ebx - pop esi - pop edi - pop ebp - - ret -; please don't remove this string ! -; Your can freely use gvmat32 in any free or commercial app if you don't remove the string in the binary! - db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah - - -IFDEF NOOLDPENTIUMCODE - IFDEF NOUNDERLINE - longest_match endp - ELSE - _longest_match endp - ENDIF - - IFDEF NOUNDERLINE - match_init proc near - ret - match_init endp - ELSE - _match_init proc near - ret - _match_init endp - ENDIF -ELSE - IFDEF NOUNDERLINE - longest_match_686 endp - ELSE - _longest_match_686 endp - ENDIF -ENDIF - -_TEXT ends -end diff --git a/cpukit/zlib/contrib/masmx86/gvmat32c.c b/cpukit/zlib/contrib/masmx86/gvmat32c.c deleted file mode 100644 index 7ad2b27943..0000000000 --- a/cpukit/zlib/contrib/masmx86/gvmat32c.c +++ /dev/null @@ -1,62 +0,0 @@ -/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86 - * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. - * File written by Gilles Vollant, by modifiying the longest_match - * from Jean-loup Gailly in deflate.c - * it prepare all parameters and call the assembly longest_match_gvasm - * longest_match execute standard C code is wmask != 0x7fff - * (assembly code is faster with a fixed wmask) - * - * Read comment at beginning of gvmat32.asm for more information - */ - -#if defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) -#include "deflate.h" - -/* if your C compiler don't add underline before function name, - define ADD_UNDERLINE_ASMFUNC */ -#ifdef ADD_UNDERLINE_ASMFUNC -#define longest_match_7fff _longest_match_7fff -#define longest_match_686 _longest_match_686 -#define cpudetect32 _cpudetect32 -#endif - - -unsigned long cpudetect32(); - -uInt longest_match_c( - deflate_state *s, - IPos cur_match); /* current match */ - - -uInt longest_match_7fff( - deflate_state *s, - IPos cur_match); /* current match */ - -uInt longest_match_686( - deflate_state *s, - IPos cur_match); /* current match */ - - -static uInt iIsPPro=2; - -void match_init () -{ - iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0; -} - -uInt longest_match( - deflate_state *s, - IPos cur_match) /* current match */ -{ - if (iIsPPro!=0) - return longest_match_686(s,cur_match); - - if (s->w_mask != 0x7fff) - return longest_match_686(s,cur_match); - - /* now ((s->w_mask == 0x7fff) && (iIsPPro==0)) */ - return longest_match_7fff(s,cur_match); -} - - -#endif /* defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) */ diff --git a/cpukit/zlib/contrib/masmx86/mkasm.bat b/cpukit/zlib/contrib/masmx86/mkasm.bat deleted file mode 100755 index 70a51f8377..0000000000 --- a/cpukit/zlib/contrib/masmx86/mkasm.bat +++ /dev/null @@ -1,3 +0,0 @@ -cl /DASMV /I..\.. /O2 /c gvmat32c.c -ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm -ml /coff /Zi /c /Flinffas32.lst inffas32.asm diff --git a/cpukit/zlib/contrib/minizip/ChangeLogUnzip b/cpukit/zlib/contrib/minizip/ChangeLogUnzip deleted file mode 100644 index 50ca6a9e0f..0000000000 --- a/cpukit/zlib/contrib/minizip/ChangeLogUnzip +++ /dev/null @@ -1,67 +0,0 @@ -Change in 1.01e (12 feb 05) -- Fix in zipOpen2 for globalcomment (Rolf Kalbermatter) -- Fix possible memory leak in unzip.c (Zoran Stevanovic) - -Change in 1.01b (20 may 04) -- Integrate patch from Debian package (submited by Mark Brown) -- Add tools mztools from Xavier Roche - -Change in 1.01 (8 may 04) -- fix buffer overrun risk in unzip.c (Xavier Roche) -- fix a minor buffer insecurity in minizip.c (Mike Whittaker) - -Change in 1.00: (10 sept 03) -- rename to 1.00 -- cosmetic code change - -Change in 0.22: (19 May 03) -- crypting support (unless you define NOCRYPT) -- append file in existing zipfile - -Change in 0.21: (10 Mar 03) -- bug fixes - -Change in 0.17: (27 Jan 02) -- bug fixes - -Change in 0.16: (19 Jan 02) -- Support of ioapi for virtualize zip file access - -Change in 0.15: (19 Mar 98) -- fix memory leak in minizip.c - -Change in 0.14: (10 Mar 98) -- fix bugs in minizip.c sample for zipping big file -- fix problem in month in date handling -- fix bug in unzlocal_GetCurrentFileInfoInternal in unzip.c for - comment handling - -Change in 0.13: (6 Mar 98) -- fix bugs in zip.c -- add real minizip sample - -Change in 0.12: (4 Mar 98) -- add zip.c and zip.h for creates .zip file -- fix change_file_date in miniunz.c for Unix (Jean-loup Gailly) -- fix miniunz.c for file without specific record for directory - -Change in 0.11: (3 Mar 98) -- fix bug in unzGetCurrentFileInfo for get extra field and comment -- enhance miniunz sample, remove the bad unztst.c sample - -Change in 0.10: (2 Mar 98) -- fix bug in unzReadCurrentFile -- rename unzip* to unz* function and structure -- remove Windows-like hungary notation variable name -- modify some structure in unzip.h -- add somes comment in source -- remove unzipGetcCurrentFile function -- replace ZUNZEXPORT by ZEXPORT -- add unzGetLocalExtrafield for get the local extrafield info -- add a new sample, miniunz.c - -Change in 0.4: (25 Feb 98) -- suppress the type unzipFileInZip. - Only on file in the zipfile can be open at the same time -- fix somes typo in code -- added tm_unz structure in unzip_file_info (date/time in readable format) diff --git a/cpukit/zlib/contrib/testzlib/testzlib.sln b/cpukit/zlib/contrib/testzlib/testzlib.sln deleted file mode 100644 index 86da7163d1..0000000000 --- a/cpukit/zlib/contrib/testzlib/testzlib.sln +++ /dev/null @@ -1,21 +0,0 @@ -Microsoft Visual Studio Solution File, Format Version 7.00 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}" -EndProject -Global - GlobalSection(SolutionConfiguration) = preSolution - ConfigName.0 = Debug - ConfigName.1 = Release - EndGlobalSection - GlobalSection(ProjectDependencies) = postSolution - EndGlobalSection - GlobalSection(ProjectConfiguration) = postSolution - {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.ActiveCfg = Debug|Win32 - {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug.Build.0 = Debug|Win32 - {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.ActiveCfg = Release|Win32 - {AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release.Build.0 = Release|Win32 - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - EndGlobalSection - GlobalSection(ExtensibilityAddIns) = postSolution - EndGlobalSection -EndGlobal diff --git a/cpukit/zlib/contrib/testzlib/testzlib.vcproj b/cpukit/zlib/contrib/testzlib/testzlib.vcproj deleted file mode 100644 index bd9b39bb9d..0000000000 --- a/cpukit/zlib/contrib/testzlib/testzlib.vcproj +++ /dev/null @@ -1,124 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj b/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj deleted file mode 100644 index ad5117c845..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/miniunz.vcproj +++ /dev/null @@ -1,126 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj b/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj deleted file mode 100644 index fb5b6320d5..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/minizip.vcproj +++ /dev/null @@ -1,126 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlib.rc b/cpukit/zlib/contrib/vstudio/vc7/zlib.rc deleted file mode 100644 index 72cb8b4c31..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/zlib.rc +++ /dev/null @@ -1,32 +0,0 @@ -#include - -#define IDR_VERSION1 1 -IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE - FILEVERSION 1,2,3,0 - PRODUCTVERSION 1,2,3,0 - FILEFLAGSMASK VS_FFI_FILEFLAGSMASK - FILEFLAGS 0 - FILEOS VOS_DOS_WINDOWS32 - FILETYPE VFT_DLL - FILESUBTYPE 0 // not used -BEGIN - BLOCK "StringFileInfo" - BEGIN - BLOCK "040904E4" - //language ID = U.S. English, char set = Windows, Multilingual - - BEGIN - VALUE "FileDescription", "zlib data compression library\0" - VALUE "FileVersion", "1.2.3.0\0" - VALUE "InternalName", "zlib\0" - VALUE "OriginalFilename", "zlib.dll\0" - VALUE "ProductName", "ZLib.DLL\0" - VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0" - VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0" - END - END - BLOCK "VarFileInfo" - BEGIN - VALUE "Translation", 0x0409, 1252 - END -END diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj b/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj deleted file mode 100644 index 766d7a4d6e..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/zlibstat.vcproj +++ /dev/null @@ -1,246 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def deleted file mode 100644 index a40e71541f..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.def +++ /dev/null @@ -1,92 +0,0 @@ - -VERSION 1.23 - -HEAPSIZE 1048576,8192 - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 - inflateCopy @42 - inflateBackInit_ @43 - inflateBack @44 - inflateBackEnd @45 - compressBound @46 - deflateBound @47 - gzclearerr @48 - gzungetc @49 - zlibCompileFlags @50 - deflatePrime @51 - - unzOpen @61 - unzClose @62 - unzGetGlobalInfo @63 - unzGetCurrentFileInfo @64 - unzGoToFirstFile @65 - unzGoToNextFile @66 - unzOpenCurrentFile @67 - unzReadCurrentFile @68 - unzOpenCurrentFile3 @69 - unztell @70 - unzeof @71 - unzCloseCurrentFile @72 - unzGetGlobalComment @73 - unzStringFileNameCompare @74 - unzLocateFile @75 - unzGetLocalExtrafield @76 - unzOpen2 @77 - unzOpenCurrentFile2 @78 - unzOpenCurrentFilePassword @79 - - zipOpen @80 - zipOpenNewFileInZip @81 - zipWriteInFileInZip @82 - zipCloseFileInZip @83 - zipClose @84 - zipOpenNewFileInZip2 @86 - zipCloseFileInZipRaw @87 - zipOpen2 @88 - zipOpenNewFileInZip3 @89 - - unzGetFilePos @100 - unzGoToFilePos @101 - - fill_win32_filefunc @110 diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln deleted file mode 100644 index 927b42b7bd..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.sln +++ /dev/null @@ -1,78 +0,0 @@ -Microsoft Visual Studio Solution File, Format Version 7.00 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testZlibDll", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654C}" -EndProject -Global - GlobalSection(SolutionConfiguration) = preSolution - ConfigName.0 = Debug - ConfigName.1 = Release - ConfigName.2 = ReleaseAxp - ConfigName.3 = ReleaseWithoutAsm - ConfigName.4 = ReleaseWithoutCrtdll - EndGlobalSection - GlobalSection(ProjectDependencies) = postSolution - EndGlobalSection - GlobalSection(ProjectConfiguration) = postSolution - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug.ActiveCfg = Debug|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug.Build.0 = Debug|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release.ActiveCfg = Release|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release.Build.0 = Release|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseAxp.ActiveCfg = ReleaseAxp|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseAxp.Build.0 = ReleaseAxp|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm.ActiveCfg = ReleaseWithoutAsm|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm.Build.0 = ReleaseWithoutAsm|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutCrtdll.ActiveCfg = ReleaseAxp|Win32 - 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{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release.ActiveCfg = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release.Build.0 = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseAxp.ActiveCfg = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseAxp.Build.0 = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm.ActiveCfg = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm.Build.0 = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutCrtdll.ActiveCfg = Release|Win32 - {48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutCrtdll.Build.0 = Release|Win32 - {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug.ActiveCfg = Debug|Win32 - {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug.Build.0 = Debug|Win32 - {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release.ActiveCfg = Release|Win32 - {C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release.Build.0 = Release|Win32 - {C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseAxp.ActiveCfg = Release|Win32 - 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{AA6666AA-E09F-4135-9C0C-4FE50C3C654C}.ReleaseWithoutCrtdll.ActiveCfg = Release|Win32 - {AA6666AA-E09F-4135-9C0C-4FE50C3C654C}.ReleaseWithoutCrtdll.Build.0 = Release|Win32 - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - EndGlobalSection - GlobalSection(ExtensibilityAddIns) = postSolution - EndGlobalSection -EndGlobal diff --git a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj b/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj deleted file mode 100644 index 8533b49475..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc7/zlibvc.vcproj +++ /dev/null @@ -1,445 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj b/cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj deleted file mode 100644 index 4af53e8a31..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/miniunz.vcproj +++ /dev/null @@ -1,566 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj b/cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj deleted file mode 100644 index 85f64c4d2a..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/minizip.vcproj +++ /dev/null @@ -1,563 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj b/cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj deleted file mode 100644 index 68c3539911..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/testzlib.vcproj +++ /dev/null @@ -1,948 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj b/cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj deleted file mode 100644 index f38ab5e08a..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/testzlibdll.vcproj +++ /dev/null @@ -1,567 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/zlib.rc b/cpukit/zlib/contrib/vstudio/vc8/zlib.rc deleted file mode 100644 index 72cb8b4c31..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/zlib.rc +++ /dev/null @@ -1,32 +0,0 @@ -#include - -#define IDR_VERSION1 1 -IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE - FILEVERSION 1,2,3,0 - PRODUCTVERSION 1,2,3,0 - FILEFLAGSMASK VS_FFI_FILEFLAGSMASK - FILEFLAGS 0 - FILEOS VOS_DOS_WINDOWS32 - FILETYPE VFT_DLL - FILESUBTYPE 0 // not used -BEGIN - BLOCK "StringFileInfo" - BEGIN - BLOCK "040904E4" - //language ID = U.S. English, char set = Windows, Multilingual - - BEGIN - VALUE "FileDescription", "zlib data compression library\0" - VALUE "FileVersion", "1.2.3.0\0" - VALUE "InternalName", "zlib\0" - VALUE "OriginalFilename", "zlib.dll\0" - VALUE "ProductName", "ZLib.DLL\0" - VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0" - VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0" - END - END - BLOCK "VarFileInfo" - BEGIN - VALUE "Translation", 0x0409, 1252 - END -END diff --git a/cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj b/cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj deleted file mode 100644 index fb97037acf..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/zlibstat.vcproj +++ /dev/null @@ -1,870 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/contrib/vstudio/vc8/zlibvc.def b/cpukit/zlib/contrib/vstudio/vc8/zlibvc.def deleted file mode 100644 index a40e71541f..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/zlibvc.def +++ /dev/null @@ -1,92 +0,0 @@ - -VERSION 1.23 - -HEAPSIZE 1048576,8192 - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 - inflateCopy @42 - inflateBackInit_ @43 - inflateBack @44 - inflateBackEnd @45 - compressBound @46 - deflateBound @47 - gzclearerr @48 - gzungetc @49 - zlibCompileFlags @50 - deflatePrime @51 - - unzOpen @61 - unzClose @62 - unzGetGlobalInfo @63 - unzGetCurrentFileInfo @64 - unzGoToFirstFile @65 - unzGoToNextFile @66 - unzOpenCurrentFile @67 - unzReadCurrentFile @68 - unzOpenCurrentFile3 @69 - unztell @70 - unzeof @71 - unzCloseCurrentFile @72 - unzGetGlobalComment @73 - unzStringFileNameCompare @74 - unzLocateFile @75 - unzGetLocalExtrafield @76 - unzOpen2 @77 - unzOpenCurrentFile2 @78 - unzOpenCurrentFilePassword @79 - - zipOpen @80 - zipOpenNewFileInZip @81 - zipWriteInFileInZip @82 - zipCloseFileInZip @83 - zipClose @84 - zipOpenNewFileInZip2 @86 - zipCloseFileInZipRaw @87 - zipOpen2 @88 - zipOpenNewFileInZip3 @89 - - unzGetFilePos @100 - unzGoToFilePos @101 - - fill_win32_filefunc @110 diff --git a/cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln b/cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln deleted file mode 100644 index a815a5549f..0000000000 --- a/cpukit/zlib/contrib/vstudio/vc8/zlibvc.sln +++ /dev/null @@ -1,144 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 9.00 -# Visual Studio 2005 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TestZlibDll", "testzlibdll.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}" - ProjectSection(ProjectDependencies) = postProject - {8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D} - EndProjectSection -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}" - ProjectSection(ProjectDependencies) = postProject - {8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D} - EndProjectSection -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}" - ProjectSection(ProjectDependencies) = postProject - {8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D} - EndProjectSection -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Itanium = Debug|Itanium - Debug|Win32 = Debug|Win32 - Debug|x64 = Debug|x64 - Release|Itanium = Release|Itanium - Release|Win32 = Release|Win32 - Release|x64 = Release|x64 - ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium - ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32 - ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64 - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.Build.0 = Release|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = ReleaseWithoutAsm|x64 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = ReleaseWithoutAsm|x64 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64 - {8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Itanium - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.Build.0 = Debug|Itanium - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32 - {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64 - 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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/cpukit/zlib/gzio.c b/cpukit/zlib/gzio.c deleted file mode 100644 index 7e90f4928f..0000000000 --- a/cpukit/zlib/gzio.c +++ /dev/null @@ -1,1026 +0,0 @@ -/* gzio.c -- IO on .gz files - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Compile this file with -DNO_GZCOMPRESS to avoid the compression code. - */ - -/* @(#) $Id$ */ - -#include - -#include "zutil.h" - -#ifdef NO_DEFLATE /* for compatibility with old definition */ -# define NO_GZCOMPRESS -#endif - -#ifndef NO_DUMMY_DECL -struct internal_state {int dummy;}; /* for buggy compilers */ -#endif - -#ifndef Z_BUFSIZE -# ifdef MAXSEG_64K -# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */ -# else -# define Z_BUFSIZE 16384 -# endif -#endif -#ifndef Z_PRINTF_BUFSIZE -# define Z_PRINTF_BUFSIZE 4096 -#endif - -#ifdef __MVS__ -# pragma map (fdopen , "\174\174FDOPEN") - FILE *fdopen(int, const char *); -#endif - -#ifndef STDC -extern voidp malloc OF((uInt size)); -extern void free OF((voidpf ptr)); -#endif - -#define ALLOC(size) malloc(size) -#define TRYFREE(p) {if (p) free(p);} - -static int const gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define RESERVED 0xE0 /* bits 5..7: reserved */ - -typedef struct gz_stream { - z_stream stream; - int z_err; /* error code for last stream operation */ - int z_eof; /* set if end of input file */ - FILE *file; /* .gz file */ - Byte *inbuf; /* input buffer */ - Byte *outbuf; /* output buffer */ - uLong crc; /* crc32 of uncompressed data */ - char *msg; /* error message */ - char *path; /* path name for debugging only */ - int transparent; /* 1 if input file is not a .gz file */ - char mode; /* 'w' or 'r' */ - z_off_t start; /* start of compressed data in file (header skipped) */ - z_off_t in; /* bytes into deflate or inflate */ - z_off_t out; /* bytes out of deflate or inflate */ - int back; /* one character push-back */ - int last; /* true if push-back is last character */ -} gz_stream; - - -local gzFile gz_open OF((const char *path, const char *mode, int fd)); -local int do_flush OF((gzFile file, int flush)); -local int get_byte OF((gz_stream *s)); -local void check_header OF((gz_stream *s)); -local int destroy OF((gz_stream *s)); -local void putLong OF((FILE *file, uLong x)); -local uLong getLong OF((gz_stream *s)); - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb"). The file is given either by file descriptor - or path name (if fd == -1). - gz_open returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). -*/ -local gzFile gz_open (path, mode, fd) - const char *path; - const char *mode; - int fd; -{ - int err; - int level = Z_DEFAULT_COMPRESSION; /* compression level */ - int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */ - char *p = (char*)mode; - gz_stream *s; - char fmode[80]; /* copy of mode, without the compression level */ - char *m = fmode; - - if (!path || !mode) return Z_NULL; - - s = (gz_stream *)ALLOC(sizeof(gz_stream)); - if (!s) return Z_NULL; - - s->stream.zalloc = (alloc_func)0; - s->stream.zfree = (free_func)0; - s->stream.opaque = (voidpf)0; - s->stream.next_in = s->inbuf = Z_NULL; - s->stream.next_out = s->outbuf = Z_NULL; - s->stream.avail_in = s->stream.avail_out = 0; - s->file = NULL; - s->z_err = Z_OK; - s->z_eof = 0; - s->in = 0; - s->out = 0; - s->back = EOF; - s->crc = crc32(0L, Z_NULL, 0); - s->msg = NULL; - s->transparent = 0; - - s->path = (char*)ALLOC(strlen(path)+1); - if (s->path == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - strcpy(s->path, path); /* do this early for debugging */ - - s->mode = '\0'; - do { - if (*p == 'r') s->mode = 'r'; - if (*p == 'w' || *p == 'a') s->mode = 'w'; - if (*p >= '0' && *p <= '9') { - level = *p - '0'; - } else if (*p == 'f') { - strategy = Z_FILTERED; - } else if (*p == 'h') { - strategy = Z_HUFFMAN_ONLY; - } else if (*p == 'R') { - strategy = Z_RLE; - } else { - *m++ = *p; /* copy the mode */ - } - } while (*p++ && m != fmode + sizeof(fmode)); - if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL; - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - err = Z_STREAM_ERROR; -#else - err = deflateInit2(&(s->stream), level, - Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy); - /* windowBits is passed < 0 to suppress zlib header */ - - s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); -#endif - if (err != Z_OK || s->outbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } else { - s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); - - err = inflateInit2(&(s->stream), -MAX_WBITS); - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are - * present after the compressed stream. - */ - if (err != Z_OK || s->inbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } - s->stream.avail_out = Z_BUFSIZE; - - errno = 0; - s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode); - - if (s->file == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - if (s->mode == 'w') { - /* Write a very simple .gz header: - */ - fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1], - Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE); - s->start = 10L; - /* We use 10L instead of ftell(s->file) to because ftell causes an - * fflush on some systems. This version of the library doesn't use - * start anyway in write mode, so this initialization is not - * necessary. - */ - } else { - check_header(s); /* skip the .gz header */ - s->start = ftell(s->file) - s->stream.avail_in; - } - - return (gzFile)s; -} - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. -*/ -gzFile ZEXPORT gzopen (path, mode) - const char *path; - const char *mode; -{ - return gz_open (path, mode, -1); -} - -/* =========================================================================== - Associate a gzFile with the file descriptor fd. fd is not dup'ed here - to mimic the behavio(u)r of fdopen. -*/ -gzFile ZEXPORT gzdopen (fd, mode) - int fd; - const char *mode; -{ - char name[46]; /* allow for up to 128-bit integers */ - - if (fd < 0) return (gzFile)Z_NULL; - sprintf(name, "", fd); /* for debugging */ - - return gz_open (name, mode, fd); -} - -/* =========================================================================== - * Update the compression level and strategy - */ -int ZEXPORT gzsetparams (file, level, strategy) - gzFile file; - int level; - int strategy; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - /* Make room to allow flushing */ - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - } - s->stream.avail_out = Z_BUFSIZE; - } - - return deflateParams (&(s->stream), level, strategy); -} - -/* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. -*/ -local int get_byte(s) - gz_stream *s; -{ - if (s->z_eof) return EOF; - if (s->stream.avail_in == 0) { - errno = 0; - s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) s->z_err = Z_ERRNO; - return EOF; - } - s->stream.next_in = s->inbuf; - } - s->stream.avail_in--; - return *(s->stream.next_in)++; -} - -/* =========================================================================== - Check the gzip header of a gz_stream opened for reading. Set the stream - mode to transparent if the gzip magic header is not present; set s->err - to Z_DATA_ERROR if the magic header is present but the rest of the header - is incorrect. - IN assertion: the stream s has already been created sucessfully; - s->stream.avail_in is zero for the first time, but may be non-zero - for concatenated .gz files. -*/ -local void check_header(s) - gz_stream *s; -{ - int method; /* method byte */ - int flags; /* flags byte */ - uInt len; - int c; - - /* Assure two bytes in the buffer so we can peek ahead -- handle case - where first byte of header is at the end of the buffer after the last - gzip segment */ - len = s->stream.avail_in; - if (len < 2) { - if (len) s->inbuf[0] = s->stream.next_in[0]; - errno = 0; - len = (uInt)fread(s->inbuf + len, 1, Z_BUFSIZE >> len, s->file); - if (len == 0 && ferror(s->file)) s->z_err = Z_ERRNO; - s->stream.avail_in += len; - s->stream.next_in = s->inbuf; - if (s->stream.avail_in < 2) { - s->transparent = s->stream.avail_in; - return; - } - } - - /* Peek ahead to check the gzip magic header */ - if (s->stream.next_in[0] != gz_magic[0] || - s->stream.next_in[1] != gz_magic[1]) { - s->transparent = 1; - return; - } - s->stream.avail_in -= 2; - s->stream.next_in += 2; - - /* Check the rest of the gzip header */ - method = get_byte(s); - flags = get_byte(s); - if (method != Z_DEFLATED || (flags & RESERVED) != 0) { - s->z_err = Z_DATA_ERROR; - return; - } - - /* Discard time, xflags and OS code: */ - for (len = 0; len < 6; len++) (void)get_byte(s); - - if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */ - len = (uInt)get_byte(s); - len += ((uInt)get_byte(s))<<8; - /* len is garbage if EOF but the loop below will quit anyway */ - while (len-- != 0 && get_byte(s) != EOF) ; - } - if ((flags & ORIG_NAME) != 0) { /* skip the original file name */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & COMMENT) != 0) { /* skip the .gz file comment */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & HEAD_CRC) != 0) { /* skip the header crc */ - for (len = 0; len < 2; len++) (void)get_byte(s); - } - s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK; -} - - /* =========================================================================== - * Cleanup then free the given gz_stream. Return a zlib error code. - Try freeing in the reverse order of allocations. - */ -local int destroy (s) - gz_stream *s; -{ - int err = Z_OK; - - if (!s) return Z_STREAM_ERROR; - - TRYFREE(s->msg); - - if (s->stream.state != NULL) { - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - err = Z_STREAM_ERROR; -#else - err = deflateEnd(&(s->stream)); -#endif - } else if (s->mode == 'r') { - err = inflateEnd(&(s->stream)); - } - } - if (s->file != NULL && fclose(s->file)) { -#ifdef ESPIPE - if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */ -#endif - err = Z_ERRNO; - } - if (s->z_err < 0) err = s->z_err; - - TRYFREE(s->inbuf); - TRYFREE(s->outbuf); - TRYFREE(s->path); - TRYFREE(s); - return err; -} - -/* =========================================================================== - Reads the given number of uncompressed bytes from the compressed file. - gzread returns the number of bytes actually read (0 for end of file). -*/ -int ZEXPORT gzread (file, buf, len) - gzFile file; - voidp buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - Bytef *start = (Bytef*)buf; /* starting point for crc computation */ - Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */ - - if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR; - - if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1; - if (s->z_err == Z_STREAM_END) return 0; /* EOF */ - - next_out = (Byte*)buf; - s->stream.next_out = (Bytef*)buf; - s->stream.avail_out = len; - - if (s->stream.avail_out && s->back != EOF) { - *next_out++ = s->back; - s->stream.next_out++; - s->stream.avail_out--; - s->back = EOF; - s->out++; - start++; - if (s->last) { - s->z_err = Z_STREAM_END; - return 1; - } - } - - while (s->stream.avail_out != 0) { - - if (s->transparent) { - /* Copy first the lookahead bytes: */ - uInt n = s->stream.avail_in; - if (n > s->stream.avail_out) n = s->stream.avail_out; - if (n > 0) { - zmemcpy(s->stream.next_out, s->stream.next_in, n); - next_out += n; - s->stream.next_out = next_out; - s->stream.next_in += n; - s->stream.avail_out -= n; - s->stream.avail_in -= n; - } - if (s->stream.avail_out > 0) { - s->stream.avail_out -= - (uInt)fread(next_out, 1, s->stream.avail_out, s->file); - } - len -= s->stream.avail_out; - s->in += len; - s->out += len; - if (len == 0) s->z_eof = 1; - return (int)len; - } - if (s->stream.avail_in == 0 && !s->z_eof) { - - errno = 0; - s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) { - s->z_err = Z_ERRNO; - break; - } - } - s->stream.next_in = s->inbuf; - } - s->in += s->stream.avail_in; - s->out += s->stream.avail_out; - s->z_err = inflate(&(s->stream), Z_NO_FLUSH); - s->in -= s->stream.avail_in; - s->out -= s->stream.avail_out; - - if (s->z_err == Z_STREAM_END) { - /* Check CRC and original size */ - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - start = s->stream.next_out; - - if (getLong(s) != s->crc) { - s->z_err = Z_DATA_ERROR; - } else { - (void)getLong(s); - /* The uncompressed length returned by above getlong() may be - * different from s->out in case of concatenated .gz files. - * Check for such files: - */ - check_header(s); - if (s->z_err == Z_OK) { - inflateReset(&(s->stream)); - s->crc = crc32(0L, Z_NULL, 0); - } - } - } - if (s->z_err != Z_OK || s->z_eof) break; - } - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - - if (len == s->stream.avail_out && - (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO)) - return -1; - return (int)(len - s->stream.avail_out); -} - - -/* =========================================================================== - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ -int ZEXPORT gzgetc(file) - gzFile file; -{ - unsigned char c; - - return gzread(file, &c, 1) == 1 ? c : -1; -} - - -/* =========================================================================== - Push one byte back onto the stream. -*/ -int ZEXPORT gzungetc(c, file) - int c; - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r' || c == EOF || s->back != EOF) return EOF; - s->back = c; - s->out--; - s->last = (s->z_err == Z_STREAM_END); - if (s->last) s->z_err = Z_OK; - s->z_eof = 0; - return c; -} - - -/* =========================================================================== - Reads bytes from the compressed file until len-1 characters are - read, or a newline character is read and transferred to buf, or an - end-of-file condition is encountered. The string is then terminated - with a null character. - gzgets returns buf, or Z_NULL in case of error. - - The current implementation is not optimized at all. -*/ -char * ZEXPORT gzgets(file, buf, len) - gzFile file; - char *buf; - int len; -{ - char *b = buf; - if (buf == Z_NULL || len <= 0) return Z_NULL; - - while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ; - *buf = '\0'; - return b == buf && len > 0 ? Z_NULL : b; -} - - -#ifndef NO_GZCOMPRESS -/* =========================================================================== - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of bytes actually written (0 in case of error). -*/ -int ZEXPORT gzwrite (file, buf, len) - gzFile file; - voidpc buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.next_in = (Bytef*)buf; - s->stream.avail_in = len; - - while (s->stream.avail_in != 0) { - - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - break; - } - s->stream.avail_out = Z_BUFSIZE; - } - s->in += s->stream.avail_in; - s->out += s->stream.avail_out; - s->z_err = deflate(&(s->stream), Z_NO_FLUSH); - s->in -= s->stream.avail_in; - s->out -= s->stream.avail_out; - if (s->z_err != Z_OK) break; - } - s->crc = crc32(s->crc, (const Bytef *)buf, len); - - return (int)(len - s->stream.avail_in); -} - - -/* =========================================================================== - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ -#ifdef STDC -#include - -int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...) -{ - char buf[Z_PRINTF_BUFSIZE]; - va_list va; - int len; - - buf[sizeof(buf) - 1] = 0; - va_start(va, format); -#ifdef NO_vsnprintf -# ifdef HAS_vsprintf_void - (void)vsprintf(buf, format, va); - va_end(va); - for (len = 0; len < sizeof(buf); len++) - if (buf[len] == 0) break; -# else - len = vsprintf(buf, format, va); - va_end(va); -# endif -#else -# ifdef HAS_vsnprintf_void - (void)vsnprintf(buf, sizeof(buf), format, va); - va_end(va); - len = strlen(buf); -# else - len = vsnprintf(buf, sizeof(buf), format, va); - va_end(va); -# endif -#endif - if (len <= 0 || len >= (int)sizeof(buf) || buf[sizeof(buf) - 1] != 0) - return 0; - return gzwrite(file, buf, (unsigned)len); -} -#else /* not ANSI C */ - -int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) - gzFile file; - const char *format; - int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; -{ - char buf[Z_PRINTF_BUFSIZE]; - int len; - - buf[sizeof(buf) - 1] = 0; -#ifdef NO_snprintf -# ifdef HAS_sprintf_void - sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - for (len = 0; len < sizeof(buf); len++) - if (buf[len] == 0) break; -# else - len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#else -# ifdef HAS_snprintf_void - snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - len = strlen(buf); -# else - len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#endif - if (len <= 0 || len >= sizeof(buf) || buf[sizeof(buf) - 1] != 0) - return 0; - return gzwrite(file, buf, len); -} -#endif - -/* =========================================================================== - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ -int ZEXPORT gzputc(file, c) - gzFile file; - int c; -{ - unsigned char cc = (unsigned char) c; /* required for big endian systems */ - - return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1; -} - - -/* =========================================================================== - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ -int ZEXPORT gzputs(file, s) - gzFile file; - const char *s; -{ - return gzwrite(file, (char*)s, (unsigned)strlen(s)); -} - - -/* =========================================================================== - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. -*/ -local int do_flush (file, flush) - gzFile file; - int flush; -{ - uInt len; - int done = 0; - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.avail_in = 0; /* should be zero already anyway */ - - for (;;) { - len = Z_BUFSIZE - s->stream.avail_out; - - if (len != 0) { - if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) { - s->z_err = Z_ERRNO; - return Z_ERRNO; - } - s->stream.next_out = s->outbuf; - s->stream.avail_out = Z_BUFSIZE; - } - if (done) break; - s->out += s->stream.avail_out; - s->z_err = deflate(&(s->stream), flush); - s->out -= s->stream.avail_out; - - /* Ignore the second of two consecutive flushes: */ - if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK; - - /* deflate has finished flushing only when it hasn't used up - * all the available space in the output buffer: - */ - done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END); - - if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break; - } - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} - -int ZEXPORT gzflush (file, flush) - gzFile file; - int flush; -{ - gz_stream *s = (gz_stream*)file; - int err = do_flush (file, flush); - - if (err) return err; - fflush(s->file); - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} -#endif /* NO_GZCOMPRESS */ - -/* =========================================================================== - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error. - SEEK_END is not implemented, returns error. - In this version of the library, gzseek can be extremely slow. -*/ -z_off_t ZEXPORT gzseek (file, offset, whence) - gzFile file; - z_off_t offset; - int whence; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || whence == SEEK_END || - s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) { - return -1L; - } - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - return -1L; -#else - if (whence == SEEK_SET) { - offset -= s->in; - } - if (offset < 0) return -1L; - - /* At this point, offset is the number of zero bytes to write. */ - if (s->inbuf == Z_NULL) { - s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */ - if (s->inbuf == Z_NULL) return -1L; - zmemzero(s->inbuf, Z_BUFSIZE); - } - while (offset > 0) { - uInt size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (uInt)offset; - - size = gzwrite(file, s->inbuf, size); - if (size == 0) return -1L; - - offset -= size; - } - return s->in; -#endif - } - /* Rest of function is for reading only */ - - /* compute absolute position */ - if (whence == SEEK_CUR) { - offset += s->out; - } - if (offset < 0) return -1L; - - if (s->transparent) { - /* map to fseek */ - s->back = EOF; - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - if (fseek(s->file, offset, SEEK_SET) < 0) return -1L; - - s->in = s->out = offset; - return offset; - } - - /* For a negative seek, rewind and use positive seek */ - if (offset >= s->out) { - offset -= s->out; - } else if (gzrewind(file) < 0) { - return -1L; - } - /* offset is now the number of bytes to skip. */ - - if (offset != 0 && s->outbuf == Z_NULL) { - s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); - if (s->outbuf == Z_NULL) return -1L; - } - if (offset && s->back != EOF) { - s->back = EOF; - s->out++; - offset--; - if (s->last) s->z_err = Z_STREAM_END; - } - while (offset > 0) { - int size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (int)offset; - - size = gzread(file, s->outbuf, (uInt)size); - if (size <= 0) return -1L; - offset -= size; - } - return s->out; -} - -/* =========================================================================== - Rewinds input file. -*/ -int ZEXPORT gzrewind (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r') return -1; - - s->z_err = Z_OK; - s->z_eof = 0; - s->back = EOF; - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - s->crc = crc32(0L, Z_NULL, 0); - if (!s->transparent) (void)inflateReset(&s->stream); - s->in = 0; - s->out = 0; - return fseek(s->file, s->start, SEEK_SET); -} - -/* =========================================================================== - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. -*/ -z_off_t ZEXPORT gztell (file) - gzFile file; -{ - return gzseek(file, 0L, SEEK_CUR); -} - -/* =========================================================================== - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ -int ZEXPORT gzeof (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - /* With concatenated compressed files that can have embedded - * crc trailers, z_eof is no longer the only/best indicator of EOF - * on a gz_stream. Handle end-of-stream error explicitly here. - */ - if (s == NULL || s->mode != 'r') return 0; - if (s->z_eof) return 1; - return s->z_err == Z_STREAM_END; -} - -/* =========================================================================== - Returns 1 if reading and doing so transparently, otherwise zero. -*/ -int ZEXPORT gzdirect (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r') return 0; - return s->transparent; -} - -/* =========================================================================== - Outputs a long in LSB order to the given file -*/ -local void putLong (file, x) - FILE *file; - uLong x; -{ - int n; - for (n = 0; n < 4; n++) { - fputc((int)(x & 0xff), file); - x >>= 8; - } -} - -/* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets z_err in case - of error. -*/ -local uLong getLong (s) - gz_stream *s; -{ - uLong x = (uLong)get_byte(s); - int c; - - x += ((uLong)get_byte(s))<<8; - x += ((uLong)get_byte(s))<<16; - c = get_byte(s); - if (c == EOF) s->z_err = Z_DATA_ERROR; - x += ((uLong)c)<<24; - return x; -} - -/* =========================================================================== - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. -*/ -int ZEXPORT gzclose (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL) return Z_STREAM_ERROR; - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - return Z_STREAM_ERROR; -#else - if (do_flush (file, Z_FINISH) != Z_OK) - return destroy((gz_stream*)file); - - putLong (s->file, s->crc); - putLong (s->file, (uLong)(s->in & 0xffffffff)); -#endif - } - return destroy((gz_stream*)file); -} - -#ifdef STDC -# define zstrerror(errnum) strerror(errnum) -#else -# define zstrerror(errnum) "" -#endif - -/* =========================================================================== - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ -const char * ZEXPORT gzerror (file, errnum) - gzFile file; - int *errnum; -{ - char *m; - gz_stream *s = (gz_stream*)file; - - if (s == NULL) { - *errnum = Z_STREAM_ERROR; - return (const char*)ERR_MSG(Z_STREAM_ERROR); - } - *errnum = s->z_err; - if (*errnum == Z_OK) return (const char*)""; - - m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg); - - if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err); - - TRYFREE(s->msg); - s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3); - if (s->msg == Z_NULL) return (const char*)ERR_MSG(Z_MEM_ERROR); - strcpy(s->msg, s->path); - strcat(s->msg, ": "); - strcat(s->msg, m); - return (const char*)s->msg; -} - -/* =========================================================================== - Clear the error and end-of-file flags, and do the same for the real file. -*/ -void ZEXPORT gzclearerr (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL) return; - if (s->z_err != Z_STREAM_END) s->z_err = Z_OK; - s->z_eof = 0; - clearerr(s->file); -} diff --git a/cpukit/zlib/old/zlib.html b/cpukit/zlib/old/zlib.html deleted file mode 100644 index 8c1b190c38..0000000000 --- a/cpukit/zlib/old/zlib.html +++ /dev/null @@ -1,971 +0,0 @@ - - - - zlib general purpose compression library version 1.1.4 - - - - - -

zlib 1.1.4 Manual

-
-

Contents

-
    -
  1. Prologue -
  2. Introduction -
  3. Utility functions -
  4. Basic functions -
  5. Advanced functions -
  6. Constants -
  7. struct z_stream_s -
  8. Checksum functions -
  9. Misc -
-
-

Prologue

- 'zlib' general purpose compression library version 1.1.4, March 11th, 2002 -

- Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler -

- This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. -

- Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: -

    -
  1. The origin of this software must not be misrepresented ; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. -
  2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. -
  3. This notice may not be removed or altered from any source distribution. -
- -
-
Jean-loup Gailly -
jloup@gzip.org -
Mark Adler -
madler@alumni.caltech.edu -
- - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files - - ftp://ds.internic.net/rfc/rfc1950.txt - (zlib format), - - rfc1951.txt - (deflate format) and - - rfc1952.txt - (gzip format). -

- This manual is converted from zlib.h by - piaip -

- Visit - http://ftp.cdrom.com/pub/infozip/zlib/ - for the official zlib web page. -

- -

-

Introduction

- The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. -

- - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. -

- - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. -

- - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. -

- -

-

Utility functions

- The following utility functions are implemented on top of the - basic stream-oriented functions. - To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -

Function list

-
    -
  • int compress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -
  • int compress2 (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level); -
  • int uncompress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -
  • typedef voidp gzFile; -
  • gzFile gzopen (const char *path, const char *mode); -
  • gzFile gzdopen (int fd, const char *mode); -
  • int gzsetparams (gzFile file, int level, int strategy); -
  • int gzread (gzFile file, voidp buf, unsigned len); -
  • int gzwrite (gzFile file, const voidp buf, unsigned len); -
  • int VA gzprintf (gzFile file, const char *format, ...); -
  • int gzputs (gzFile file, const char *s); -
  • char * gzgets (gzFile file, char *buf, int len); -
  • int gzputc (gzFile file, int c); -
  • int gzgetc (gzFile file); -
  • int gzflush (gzFile file, int flush); -
  • z_off_t gzseek (gzFile file, z_off_t offset, int whence); -
  • z_off_t gztell (gzFile file); -
  • int gzrewind (gzFile file); -
  • int gzeof (gzFile file); -
  • int gzclose (gzFile file); -
  • const char * gzerror (gzFile file, int *errnum); -
-

Function description

-
-
int compress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -
- Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the - compressed buffer.

- This function can be used to compress a whole file at once if the - input file is mmap'ed.

- compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer.

- -

int compress2 (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level); -
- Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. -

- - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -

- -

int uncompress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -
- Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer.

- This function can be used to decompress a whole file at once if the - input file is mmap'ed. -

- - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -

- -

typedef voidp gzFile; -

- -

gzFile gzopen (const char *path, const char *mode); -
- Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of deflateInit2 for more information about the strategy parameter.) -

- - gzopen can be used to read a file which is not in gzip format ; in this - case gzread will directly read from the file without decompression. -

- - gzopen returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state ; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). -

- -

gzFile gzdopen (int fd, const char *mode); -
- gzdopen() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in gzopen. -

- The next call of gzclose on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). -

- gzdopen returns NULL if there was insufficient memory to allocate - the (de)compression state. -

- -

int gzsetparams (gzFile file, int level, int strategy); -
- Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. -

- gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -

- -

int gzread (gzFile file, voidp buf, unsigned len); -
- Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, gzread copies the given number - of bytes into the buffer. -

- gzread returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). -

- -

int gzwrite (gzFile file, const voidp buf, unsigned len); -
- Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes actually written - (0 in case of error). -

- -

int VA gzprintf (gzFile file, const char *format, ...); -
- Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -

- -

int gzputs (gzFile file, const char *s); -
- Writes the given null-terminated string to the compressed file, excluding - the terminating null character. -

- gzputs returns the number of characters written, or -1 in case of error. -

- -

char * gzgets (gzFile file, char *buf, int len); -
- Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. -

- gzgets returns buf, or Z_NULL in case of error. -

- -

int gzputc (gzFile file, int c); -
- Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -

- -

int gzgetc (gzFile file); -
- Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -

- -

int gzflush (gzFile file, int flush); -
- Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. The return value is the zlib - error number (see function gzerror below). gzflush returns Z_OK if - the flush parameter is Z_FINISH and all output could be flushed. -

- gzflush should be called only when strictly necessary because it can - degrade compression. -

- -

z_off_t gzseek (gzFile file, z_off_t offset, int whence); -
- Sets the starting position for the next gzread or gzwrite on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. -

- If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported ; gzseek then compresses a sequence of zeroes up to the new - starting position. -

- gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -

- -

int gzrewind (gzFile file); -
- Rewinds the given file. This function is supported only for reading. -

- gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -

- -

z_off_t gztell (gzFile file); -
- Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. -

- - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -

- -

int gzeof (gzFile file); -
- Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -

- -

int gzclose (gzFile file); -
- Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. The return value is the zlib - error number (see function gzerror below). -

- -

const char * gzerror (gzFile file, int *errnum); -
- Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -

-

-
-

Basic functions

-

Function list

- - -

Function description

-
-
const char * zlibVersion (void); -
The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by deflateInit and inflateInit. -

- -

int deflateInit (z_streamp strm, int level); -
- Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. - If zalloc and zfree are set to Z_NULL, deflateInit updates them to - use default allocation functions. -

- - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). -

- - Z_DEFAULT_COMPRESSION requests a default compromise between speed and - compression (currently equivalent to level 6). -

- - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if level is not a valid compression level, - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - msg is set to null if there is no error message. deflateInit does not - perform any compression: this will be done by deflate(). -

- -

int deflate (z_streamp strm, int flush); -
- deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush.

- - The detailed semantics are as follows. deflate performs one or both of the - following actions: - -

    -
  • Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - -
  • - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. -

- - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating avail_in or avail_out accordingly ; avail_out - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK - and with zero avail_out, it must be called again after making room in the - output buffer because there might be more output pending. -

- - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - avail_in is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. -

- - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - the compression. -

- - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). -

- - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there - was enough output space ; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the - stream are deflateReset or deflateEnd. -

- - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least - 0.1% larger than avail_in plus 12 bytes. If deflate does not return - Z_STREAM_END, then it must be called again as described above. -

- - deflate() sets strm-> adler to the adler32 checksum of all input read - so far (that is, total_in bytes). -

- - deflate() may update data_type if it can make a good guess about - the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. -

- - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). -

- -

int deflateEnd (z_streamp strm); -
- All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. -

- - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, - msg may be set but then points to a static string (which must not be - deallocated). -

- -

int inflateInit (z_streamp strm); -
- Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the exact - value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly ; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. -

- - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller. msg is set to null if there is no error - message. inflateInit does not perform any decompression apart from reading - the zlib header if present: this will be done by inflate(). (So next_in and - avail_in may be modified, but next_out and avail_out are unchanged.) -

- -

int inflate (z_streamp strm, int flush); -
- inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. -

- - The detailed semantics are as follows. inflate performs one or both of the - following actions: - -

    -
  • Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing - will resume at this point for the next call of inflate(). - -
  • Provide more output starting at next_out and update next_out and - avail_out accordingly. inflate() provides as much output as possible, - until there is no more input data or no more space in the output buffer - (see below about the flush parameter). -

- - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (avail_out == 0), or after each - call of inflate(). If inflate returns Z_OK and with zero avail_out, it - must be called again after making room in the output buffer because there - might be more output pending. -

- - If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much - output as possible to the output buffer. The flushing behavior of inflate is - not specified for values of the flush parameter other than Z_SYNC_FLUSH - and Z_FINISH, but the current implementation actually flushes as much output - as possible anyway. -

- - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step - (a single call of inflate), the parameter flush should be set to - Z_FINISH. In this case all pending input is processed and all pending - output is flushed ; avail_out must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster routine - may be used for the single inflate() call. -

- - If a preset dictionary is needed at this point (see inflateSetDictionary - below), inflate sets strm-adler to the adler32 checksum of the - dictionary chosen by the compressor and returns Z_NEED_DICT ; otherwise - it sets strm-> adler to the adler32 checksum of all output produced - so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or - an error code as described below. At the end of the stream, inflate() - checks that its computed adler32 checksum is equal to that saved by the - compressor and returns Z_STREAM_END only if the checksum is correct. -

- - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent - (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if no progress is possible or if there was not - enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR - case, the application may then call inflateSync to look for a good - compression block. -

- -

int inflateEnd (z_streamp strm); -
- All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. -

- - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -

-
-

Advanced functions

- The following functions are needed only in some special applications. -

Function list

- -

Function description

-
-
int deflateInit2 (z_streamp strm, int level, int method, int windowBits, int memLevel, int strategy); - -
This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by - the caller.

- - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library.

- - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead.

- - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but - is slow and reduces compression ratio ; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel.

- - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to compress them better. The effect of Z_FILTERED is to force more - Huffman coding and less string matching ; it is somewhat intermediate - between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately.

- - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid - method). msg is set to null if there is no error message. deflateInit2 does - not perform any compression: this will be done by deflate().

- -

int deflateSetDictionary (z_streamp strm, const Bytef *dictionary, uInt dictLength); -
- Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any - call of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary).

- - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy ; the data can then be compressed better than - with the default empty dictionary.

- - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - deflate or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front.

- - Upon return of this function, strm-> adler is set to the Adler32 value - of the dictionary ; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.)

- - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate().

- -

int deflateCopy (z_streamp dest, z_streamp source); -
- Sets the destination stream as a complete copy of the source stream.

- - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and - can consume lots of memory.

- - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination.

- -

int deflateReset (z_streamp strm); -
This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. - The stream will keep the same compression level and any other attributes - that may have been set by deflateInit2.

- - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL).

- -

int deflateParams (z_streamp strm, int level, int strategy); -
- Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of deflate().

- - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to - be compressed and flushed. In particular, strm-> avail_out must be - non-zero.

- - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR - if strm->avail_out was zero.

- -

int inflateInit2 (z_streamp strm, int windowBits); - -
This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller.

- - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. If a compressed stream with a larger window size is given as - input, inflate() will return with the error code Z_DATA_ERROR instead of - trying to allocate a larger window.

- - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative - memLevel). msg is set to null if there is no error message. inflateInit2 - does not perform any decompression apart from reading the zlib header if - present: this will be done by inflate(). (So next_in and avail_in may be - modified, but next_out and avail_out are unchanged.)

- -

int inflateSetDictionary (z_streamp strm, const Bytef *dictionary, uInt dictLength); -
- Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate - if this call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of - inflate. The compressor and decompressor must use exactly the same - dictionary (see deflateSetDictionary).

- - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect Adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate().

- -

int inflateSync (z_streamp strm); - -
Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided.

- - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been found, - or Z_STREAM_ERROR if the stream structure was inconsistent. In the success - case, the application may save the current current value of total_in which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call inflateSync, providing more input each time, - until success or end of the input data.

- -

int inflateReset (z_streamp strm); -
- This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. - The stream will keep attributes that may have been set by inflateInit2. -

- - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -

-

- -
-

Checksum functions

- These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -

Function list

- -

Function description

-
-
uLong adler32 (uLong adler, const Bytef *buf, uInt len); -
- Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. -

- An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - 

-
-     uLong adler = adler32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       adler = adler32(adler, buffer, length);
-     }
-     if (adler != original_adler) error();
-
- -
uLong crc32 (uLong crc, const Bytef *buf, uInt len); -
- Update a running crc with the bytes buf[0..len-1] and return the updated - crc. If buf is NULL, this function returns the required initial value - for the crc. Pre- and post-conditioning (one's complement) is performed - within this function so it shouldn't be done by the application. - Usage example: - 
-
-     uLong crc = crc32(0L, Z_NULL, 0);
-
-     while (read_buffer(buffer, length) != EOF) {
-       crc = crc32(crc, buffer, length);
-     }
-     if (crc != original_crc) error();
-
-
-
-

struct z_stream_s

- - -
-typedef struct z_stream_s {
-    Bytef    *next_in;  /* next input byte */
-    uInt     avail_in;  /* number of bytes available at next_in */
-    uLong    total_in;  /* total nb of input bytes read so far */
-
-    Bytef    *next_out; /* next output byte should be put there */
-    uInt     avail_out; /* remaining free space at next_out */
-    uLong    total_out; /* total nb of bytes output so far */
-
-    char     *msg;      /* last error message, NULL if no error */
-    struct internal_state FAR *state; /* not visible by applications */
-
-    alloc_func zalloc;  /* used to allocate the internal state */
-    free_func  zfree;   /* used to free the internal state */
-    voidpf     opaque;  /* private data object passed to zalloc and zfree */
-
-    int     data_type;  /* best guess about the data type: ascii or binary */
-    uLong   adler;      /* adler32 value of the uncompressed data */
-    uLong   reserved;   /* reserved for future use */
-} z_stream ;
-
-typedef z_stream FAR * z_streamp;  ÿ
-
- - The application must update next_in and avail_in when avail_in has - dropped to zero. It must update next_out and avail_out when avail_out - has dropped to zero. The application must initialize zalloc, zfree and - opaque before calling the init function. All other fields are set by the - compression library and must not be updated by the application.

- - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value.

- - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe.

- - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by zalloc for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). -

- - The fields total_in and total_out can be used for statistics or - progress reports. After compression, total_in holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step).

- -

-

Constants

- -
-#define Z_NO_FLUSH      0
-#define Z_PARTIAL_FLUSH 1
-	/* will be removed, use Z_SYNC_FLUSH instead */
-#define Z_SYNC_FLUSH    2
-#define Z_FULL_FLUSH    3
-#define Z_FINISH        4
-/* Allowed flush values ; see deflate() below for details */
-
-#define Z_OK            0
-#define Z_STREAM_END    1
-#define Z_NEED_DICT     2
-#define Z_ERRNO        (-1)
-#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)
-/* Return codes for the compression/decompression functions. Negative
- * values are errors, positive values are used for special but normal events.
- */
-
-#define Z_NO_COMPRESSION         0
-#define Z_BEST_SPEED             1
-#define Z_BEST_COMPRESSION       9
-#define Z_DEFAULT_COMPRESSION  (-1)
-/* compression levels */
-
-#define Z_FILTERED            1
-#define Z_HUFFMAN_ONLY        2
-#define Z_DEFAULT_STRATEGY    0
-/* compression strategy ; see deflateInit2() below for details */
-
-#define Z_BINARY   0
-#define Z_ASCII    1
-#define Z_UNKNOWN  2
-/* Possible values of the data_type field */
-
-#define Z_DEFLATED   8
-/* The deflate compression method (the only one supported in this version) */
-
-#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-
-#define zlib_version zlibVersion()
-/* for compatibility with versions less than 1.0.2 */
-
- - -
-

Misc

- deflateInit and inflateInit are macros to allow checking the zlib version - and the compiler's view of z_stream. -

- Other functions: -

-
const char * zError (int err); -
int inflateSyncPoint (z_streamp z); -
const uLongf * get_crc_table (void); -
-
- - Last update: Wed Oct 13 20:42:34 1999
- piapi@csie.ntu.edu.tw - - - - diff --git a/cpukit/zlib/projects/README.projects b/cpukit/zlib/projects/README.projects deleted file mode 100644 index 1c029e4a34..0000000000 --- a/cpukit/zlib/projects/README.projects +++ /dev/null @@ -1,41 +0,0 @@ -This directory contains project files for building zlib under various -Integrated Development Environments (IDE). - -If you wish to submit a new project to this directory, you should comply -to the following requirements. Otherwise (e.g. if you wish to integrate -a custom piece of code that changes the zlib interface or its behavior), -please consider submitting the project to the contrib directory. - - -Requirements -============ - -- The project must build zlib using the source files from the official - zlib source distribution, exclusively. - -- If the project produces redistributable builds (e.g. shared objects - or DLL files), these builds must be compatible to those produced by - makefiles, if such makefiles exist in the zlib distribution. - In particular, if the project produces a DLL build for the Win32 - platform, this build must comply to the officially-ammended Win32 DLL - Application Binary Interface (ABI), described in win32/DLL_FAQ.txt. - -- The project may provide additional build targets, which depend on - 3rd-party (unofficially-supported) software, present in the contrib - directory. For example, it is possible to provide an "ASM build", - besides the officially-supported build, and have ASM source files - among its dependencies. - -- If there are significant differences between the project files created - by different versions of an IDE (e.g. Visual C++ 6.0 vs. 7.0), the name - of the project directory should contain the version number of the IDE - for which the project is intended (e.g. "visualc6" for Visual C++ 6.0, - or "visualc7" for Visual C++ 7.0 and 7.1). - - -Current projects -================ - -visualc6/ by Simon-Pierre Cadieux - and Cosmin Truta - Project for Microsoft Visual C++ 6.0 diff --git a/cpukit/zlib/projects/visualc6/README.txt b/cpukit/zlib/projects/visualc6/README.txt deleted file mode 100644 index d0296c272c..0000000000 --- a/cpukit/zlib/projects/visualc6/README.txt +++ /dev/null @@ -1,73 +0,0 @@ -Microsoft Developer Studio Project Files, Format Version 6.00 for zlib. - -Copyright (C) 2000-2004 Simon-Pierre Cadieux. -Copyright (C) 2004 Cosmin Truta. -For conditions of distribution and use, see copyright notice in zlib.h. - - -This project builds the zlib binaries as follows: - -* Win32_DLL_Release\zlib1.dll DLL build -* Win32_DLL_Debug\zlib1d.dll DLL build (debug version) -* Win32_DLL_ASM_Release\zlib1.dll DLL build using ASM code -* Win32_DLL_ASM_Debug\zlib1d.dll DLL build using ASM code (debug version) -* Win32_LIB_Release\zlib.lib static build -* Win32_LIB_Debug\zlibd.lib static build (debug version) -* Win32_LIB_ASM_Release\zlib.lib static build using ASM code -* Win32_LIB_ASM_Debug\zlibd.lib static build using ASM code (debug version) - - -For more information regarding the DLL builds, please see the DLL FAQ -in ..\..\win32\DLL_FAQ.txt. - - -To build and test: - -1) On the main menu, select "File | Open Workspace". - Open "zlib.dsw". - -2) Select "Build | Set Active Configuration". - Choose the configuration you wish to build. - -3) Select "Build | Clean". - -4) Select "Build | Build ... (F7)". Ignore warning messages about - not being able to find certain include files (e.g. alloc.h). - -5) If you built one of the sample programs (example or minigzip), - select "Build | Execute ... (Ctrl+F5)". - - -To use: - -1) Select "Project | Settings (Alt+F7)". - Make note of the configuration names used in your project. - Usually, these names are "Win32 Release" and "Win32 Debug". - -2) In the Workspace window, select the "FileView" tab. - Right-click on the root item "Workspace '...'". - Select "Insert Project into Workspace". - Switch on the checkbox "Dependency of:", and select the name - of your project. Open "zlib.dsp". - -3) Select "Build | Configurations". - For each configuration of your project: - 3.1) Choose the zlib configuration you wish to use. - 3.2) Click on "Add". - 3.3) Set the new zlib configuration name to the name used by - the configuration from the current iteration. - -4) Select "Build | Set Active Configuration". - Choose the configuration you wish to build. - -5) Select "Build | Build ... (F7)". - -6) If you built an executable program, select - "Build | Execute ... (Ctrl+F5)". - - -Note: - -To build the ASM-enabled code, you need Microsoft Assembler -(ML.EXE). You can get it by downloading and installing the -latest Processor Pack for Visual C++ 6.0. diff --git a/cpukit/zlib/projects/visualc6/example.dsp b/cpukit/zlib/projects/visualc6/example.dsp deleted file mode 100644 index d3580525bd..0000000000 --- a/cpukit/zlib/projects/visualc6/example.dsp +++ /dev/null @@ -1,278 +0,0 @@ -# Microsoft Developer Studio Project File - Name="example" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** DO NOT EDIT ** - -# TARGTYPE "Win32 (x86) Console Application" 0x0103 - -CFG=example - Win32 LIB Debug -!MESSAGE This is not a valid makefile. To build this project using NMAKE, -!MESSAGE use the Export Makefile command and run -!MESSAGE -!MESSAGE NMAKE /f "example.mak". -!MESSAGE -!MESSAGE You can specify a configuration when running NMAKE -!MESSAGE by defining the macro CFG on the command line. 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-Project: "minigzip"=.\minigzip.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ - Begin Project Dependency - Project_Dep_Name zlib - End Project Dependency -}}} - -############################################################################### - -Project: "zlib"=.\zlib.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/cpukit/zlib/zconf.in.h b/cpukit/zlib/zconf.in.h deleted file mode 100644 index 03a9431c8b..0000000000 --- a/cpukit/zlib/zconf.in.h +++ /dev/null @@ -1,332 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - */ -#ifdef Z_PREFIX -# define deflateInit_ z_deflateInit_ -# define deflate z_deflate -# define deflateEnd z_deflateEnd -# define inflateInit_ z_inflateInit_ -# define inflate z_inflate -# define inflateEnd z_inflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateSetDictionary z_deflateSetDictionary -# define deflateCopy z_deflateCopy -# define deflateReset z_deflateReset -# define deflateParams z_deflateParams -# define deflateBound z_deflateBound -# define deflatePrime z_deflatePrime -# define inflateInit2_ z_inflateInit2_ -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateCopy z_inflateCopy -# define inflateReset z_inflateReset -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define uncompress z_uncompress -# define adler32 z_adler32 -# define crc32 z_crc32 -# define get_crc_table z_get_crc_table -# define zError z_zError - -# define alloc_func z_alloc_func -# define free_func z_free_func -# define in_func z_in_func -# define out_func z_out_func -# define Byte z_Byte -# define uInt z_uInt -# define uLong z_uLong -# define Bytef z_Bytef -# define charf z_charf -# define intf z_intf -# define uIntf z_uIntf -# define uLongf z_uLongf -# define voidpf z_voidpf -# define voidp z_voidp -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */ -# include /* for off_t */ -# include /* for SEEK_* and off_t */ -# ifdef VMS -# include /* for off_t */ -# endif -# define z_off_t off_t -#endif -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -# ifdef FAR -# undef FAR -# endif -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) -# pragma map(deflateInit_,"DEIN") -# pragma map(deflateInit2_,"DEIN2") -# pragma map(deflateEnd,"DEEND") -# pragma map(deflateBound,"DEBND") -# pragma map(inflateInit_,"ININ") -# pragma map(inflateInit2_,"ININ2") -# pragma map(inflateEnd,"INEND") -# pragma map(inflateSync,"INSY") -# pragma map(inflateSetDictionary,"INSEDI") -# pragma map(compressBound,"CMBND") -# pragma map(inflate_table,"INTABL") -# pragma map(inflate_fast,"INFA") -# pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ -- cgit v1.2.3