update zlib from 1.2.12 to 1.3.1.

This commit is contained in:
Sasha Szpakowski
2024-12-20 11:34:32 -04:00
parent 84620b726f
commit 56344d459e
277 changed files with 20723 additions and 24601 deletions
+1 -1
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@@ -219,7 +219,7 @@ if(MSVC)
endif()
set(MEGA_ZLIB_VER "1.2.12")
set(MEGA_ZLIB_VER "1.3.1")
set(MEGA_LUA51_VER "5.1.5")
set(MEGA_LUAJIT_VER "2.1.1710088188")
set(MEGA_LIBOGG_VER "1.3.2")
-26
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@@ -1,26 +0,0 @@
*.diff
*.patch
*.orig
*.rej
*~
*.a
*.lo
*.o
*.dylib
*.gcda
*.gcno
*.gcov
/example
/example64
/examplesh
/libz.so*
/minigzip
/minigzip64
/minigzipsh
/zlib.pc
/configure.log
.DS_Store
@@ -1,452 +0,0 @@
/*
* match.S -- optimized version of longest_match()
* based on the similar work by Gilles Vollant, and Brian Raiter, written 1998
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the BSD License. Use by owners of Che Guevarra
* parafernalia is prohibited, where possible, and highly discouraged
* elsewhere.
*/
#ifndef NO_UNDERLINE
# define match_init _match_init
# define longest_match _longest_match
#endif
#define scanend ebx
#define scanendw bx
#define chainlenwmask edx /* high word: current chain len low word: s->wmask */
#define curmatch rsi
#define curmatchd esi
#define windowbestlen r8
#define scanalign r9
#define scanalignd r9d
#define window r10
#define bestlen r11
#define bestlend r11d
#define scanstart r12d
#define scanstartw r12w
#define scan r13
#define nicematch r14d
#define limit r15
#define limitd r15d
#define prev rcx
/*
* The 258 is a "magic number, not a parameter -- changing it
* breaks the hell loose
*/
#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 LocalVarsSize (112)
#define _chainlenwmask ( 8-LocalVarsSize)(%rsp)
#define _windowbestlen (16-LocalVarsSize)(%rsp)
#define save_r14 (24-LocalVarsSize)(%rsp)
#define save_rsi (32-LocalVarsSize)(%rsp)
#define save_rbx (40-LocalVarsSize)(%rsp)
#define save_r12 (56-LocalVarsSize)(%rsp)
#define save_r13 (64-LocalVarsSize)(%rsp)
#define save_r15 (80-LocalVarsSize)(%rsp)
.globl match_init, longest_match
/*
* On AMD64 the first argument of a function (in our case -- the pointer to
* deflate_state structure) is passed in %rdi, hence our offsets below are
* all off of that.
*/
/* you can check the structure offset by running
#include <stdlib.h>
#include <stdio.h>
#include "deflate.h"
void print_depl()
{
deflate_state ds;
deflate_state *s=&ds;
printf("size pointer=%u\n",(int)sizeof(void*));
printf("#define dsWSize (%3u)(%%rdi)\n",(int)(((char*)&(s->w_size))-((char*)s)));
printf("#define dsWMask (%3u)(%%rdi)\n",(int)(((char*)&(s->w_mask))-((char*)s)));
printf("#define dsWindow (%3u)(%%rdi)\n",(int)(((char*)&(s->window))-((char*)s)));
printf("#define dsPrev (%3u)(%%rdi)\n",(int)(((char*)&(s->prev))-((char*)s)));
printf("#define dsMatchLen (%3u)(%%rdi)\n",(int)(((char*)&(s->match_length))-((char*)s)));
printf("#define dsPrevMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_match))-((char*)s)));
printf("#define dsStrStart (%3u)(%%rdi)\n",(int)(((char*)&(s->strstart))-((char*)s)));
printf("#define dsMatchStart (%3u)(%%rdi)\n",(int)(((char*)&(s->match_start))-((char*)s)));
printf("#define dsLookahead (%3u)(%%rdi)\n",(int)(((char*)&(s->lookahead))-((char*)s)));
printf("#define dsPrevLen (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_length))-((char*)s)));
printf("#define dsMaxChainLen (%3u)(%%rdi)\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
printf("#define dsGoodMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->good_match))-((char*)s)));
printf("#define dsNiceMatch (%3u)(%%rdi)\n",(int)(((char*)&(s->nice_match))-((char*)s)));
}
*/
/*
to compile for XCode 3.2 on MacOSX x86_64
- run "gcc -g -c -DXCODE_MAC_X64_STRUCTURE amd64-match.S"
*/
#ifndef CURRENT_LINX_XCODE_MAC_X64_STRUCTURE
#define dsWSize ( 68)(%rdi)
#define dsWMask ( 76)(%rdi)
#define dsWindow ( 80)(%rdi)
#define dsPrev ( 96)(%rdi)
#define dsMatchLen (144)(%rdi)
#define dsPrevMatch (148)(%rdi)
#define dsStrStart (156)(%rdi)
#define dsMatchStart (160)(%rdi)
#define dsLookahead (164)(%rdi)
#define dsPrevLen (168)(%rdi)
#define dsMaxChainLen (172)(%rdi)
#define dsGoodMatch (188)(%rdi)
#define dsNiceMatch (192)(%rdi)
#else
#ifndef STRUCT_OFFSET
# define STRUCT_OFFSET (0)
#endif
#define dsWSize ( 56 + STRUCT_OFFSET)(%rdi)
#define dsWMask ( 64 + STRUCT_OFFSET)(%rdi)
#define dsWindow ( 72 + STRUCT_OFFSET)(%rdi)
#define dsPrev ( 88 + STRUCT_OFFSET)(%rdi)
#define dsMatchLen (136 + STRUCT_OFFSET)(%rdi)
#define dsPrevMatch (140 + STRUCT_OFFSET)(%rdi)
#define dsStrStart (148 + STRUCT_OFFSET)(%rdi)
#define dsMatchStart (152 + STRUCT_OFFSET)(%rdi)
#define dsLookahead (156 + STRUCT_OFFSET)(%rdi)
#define dsPrevLen (160 + STRUCT_OFFSET)(%rdi)
#define dsMaxChainLen (164 + STRUCT_OFFSET)(%rdi)
#define dsGoodMatch (180 + STRUCT_OFFSET)(%rdi)
#define dsNiceMatch (184 + STRUCT_OFFSET)(%rdi)
#endif
.text
/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
longest_match:
/*
* Retrieve the function arguments. %curmatch will hold cur_match
* throughout the entire function (passed via rsi on amd64).
* rdi will hold the pointer to the deflate_state (first arg on amd64)
*/
mov %rsi, save_rsi
mov %rbx, save_rbx
mov %r12, save_r12
mov %r13, save_r13
mov %r14, save_r14
mov %r15, save_r15
/* uInt wmask = s->w_mask; */
/* unsigned chain_length = s->max_chain_length; */
/* if (s->prev_length >= s->good_match) { */
/* chain_length >>= 2; */
/* } */
movl dsPrevLen, %eax
movl dsGoodMatch, %ebx
cmpl %ebx, %eax
movl dsWMask, %eax
movl dsMaxChainLen, %chainlenwmask
jl LastMatchGood
shrl $2, %chainlenwmask
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. */
decl %chainlenwmask
shll $16, %chainlenwmask
orl %eax, %chainlenwmask
/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */
movl dsNiceMatch, %eax
movl dsLookahead, %ebx
cmpl %eax, %ebx
jl LookaheadLess
movl %eax, %ebx
LookaheadLess: movl %ebx, %nicematch
/* register Bytef *scan = s->window + s->strstart; */
mov dsWindow, %window
movl dsStrStart, %limitd
lea (%limit, %window), %scan
/* Determine how many bytes the scan ptr is off from being */
/* dword-aligned. */
mov %scan, %scanalign
negl %scanalignd
andl $3, %scanalignd
/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */
/* s->strstart - (IPos)MAX_DIST(s) : NIL; */
movl dsWSize, %eax
subl $MIN_LOOKAHEAD, %eax
xorl %ecx, %ecx
subl %eax, %limitd
cmovng %ecx, %limitd
/* int best_len = s->prev_length; */
movl dsPrevLen, %bestlend
/* Store the sum of s->window + best_len in %windowbestlen locally, and in memory. */
lea (%window, %bestlen), %windowbestlen
mov %windowbestlen, _windowbestlen
/* register ush scan_start = *(ushf*)scan; */
/* register ush scan_end = *(ushf*)(scan+best_len-1); */
/* Posf *prev = s->prev; */
movzwl (%scan), %scanstart
movzwl -1(%scan, %bestlen), %scanend
mov dsPrev, %prev
/* Jump into the main loop. */
movl %chainlenwmask, _chainlenwmask
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.
*/
LookupLoop:
andl %chainlenwmask, %curmatchd
movzwl (%prev, %curmatch, 2), %curmatchd
cmpl %limitd, %curmatchd
jbe LeaveNow
subl $0x00010000, %chainlenwmask
js LeaveNow
LoopEntry: cmpw -1(%windowbestlen, %curmatch), %scanendw
jne LookupLoop
cmpw %scanstartw, (%window, %curmatch)
jne LookupLoop
/* Store the current value of chainlen. */
movl %chainlenwmask, _chainlenwmask
/* %scan is the string under scrutiny, and %prev 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 $(-MAX_MATCH_8), %rdx
lea (%curmatch, %window), %windowbestlen
lea MAX_MATCH_8(%windowbestlen, %scanalign), %windowbestlen
lea MAX_MATCH_8(%scan, %scanalign), %prev
/* the prefetching below makes very little difference... */
prefetcht1 (%windowbestlen, %rdx)
prefetcht1 (%prev, %rdx)
/*
* Test the strings for equality, 8 bytes at a time. At the end,
* adjust %rdx so that it is offset to the exact byte that mismatched.
*
* 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 -- unrolling it, for example, makes no difference.
*/
#undef USE_SSE /* works, but is 6-7% slower, than non-SSE... */
LoopCmps:
#ifdef USE_SSE
/* Preload the SSE registers */
movdqu (%windowbestlen, %rdx), %xmm1
movdqu (%prev, %rdx), %xmm2
pcmpeqb %xmm2, %xmm1
movdqu 16(%windowbestlen, %rdx), %xmm3
movdqu 16(%prev, %rdx), %xmm4
pcmpeqb %xmm4, %xmm3
movdqu 32(%windowbestlen, %rdx), %xmm5
movdqu 32(%prev, %rdx), %xmm6
pcmpeqb %xmm6, %xmm5
movdqu 48(%windowbestlen, %rdx), %xmm7
movdqu 48(%prev, %rdx), %xmm8
pcmpeqb %xmm8, %xmm7
/* Check the comparisions' results */
pmovmskb %xmm1, %rax
notw %ax
bsfw %ax, %ax
jnz LeaveLoopCmps
/* this is the only iteration of the loop with a possibility of having
incremented rdx by 0x108 (each loop iteration add 16*4 = 0x40
and (0x40*4)+8=0x108 */
add $8, %rdx
jz LenMaximum
add $8, %rdx
pmovmskb %xmm3, %rax
notw %ax
bsfw %ax, %ax
jnz LeaveLoopCmps
add $16, %rdx
pmovmskb %xmm5, %rax
notw %ax
bsfw %ax, %ax
jnz LeaveLoopCmps
add $16, %rdx
pmovmskb %xmm7, %rax
notw %ax
bsfw %ax, %ax
jnz LeaveLoopCmps
add $16, %rdx
jmp LoopCmps
LeaveLoopCmps: add %rax, %rdx
#else
mov (%windowbestlen, %rdx), %rax
xor (%prev, %rdx), %rax
jnz LeaveLoopCmps
mov 8(%windowbestlen, %rdx), %rax
xor 8(%prev, %rdx), %rax
jnz LeaveLoopCmps8
mov 16(%windowbestlen, %rdx), %rax
xor 16(%prev, %rdx), %rax
jnz LeaveLoopCmps16
add $24, %rdx
jnz LoopCmps
jmp LenMaximum
# if 0
/*
* This three-liner is tantalizingly simple, but bsf is a slow instruction,
* and the complicated alternative down below is quite a bit faster. Sad...
*/
LeaveLoopCmps: bsf %rax, %rax /* find the first non-zero bit */
shrl $3, %eax /* divide by 8 to get the byte */
add %rax, %rdx
# else
LeaveLoopCmps16:
add $8, %rdx
LeaveLoopCmps8:
add $8, %rdx
LeaveLoopCmps: testl $0xFFFFFFFF, %eax /* Check the first 4 bytes */
jnz Check16
add $4, %rdx
shr $32, %rax
Check16: testw $0xFFFF, %ax
jnz LenLower
add $2, %rdx
shrl $16, %eax
LenLower: subb $1, %al
adc $0, %rdx
# endif
#endif
/* 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 (%prev, %rdx), %rax
sub %scan, %rax
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. */
cmpl %bestlend, %eax
jg LongerMatch
mov _windowbestlen, %windowbestlen
mov dsPrev, %prev
movl _chainlenwmask, %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 %eax, %bestlend
movl %curmatchd, dsMatchStart
cmpl %nicematch, %eax
jge LeaveNow
lea (%window, %bestlen), %windowbestlen
mov %windowbestlen, _windowbestlen
movzwl -1(%scan, %rax), %scanend
mov dsPrev, %prev
movl _chainlenwmask, %chainlenwmask
jmp LookupLoop
/* Accept the current string, with the maximum possible length. */
LenMaximum:
movl $MAX_MATCH, %bestlend
movl %curmatchd, dsMatchStart
/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */
/* return s->lookahead; */
LeaveNow:
movl dsLookahead, %eax
cmpl %eax, %bestlend
cmovngl %bestlend, %eax
LookaheadRet:
/* Restore the registers and return from whence we came. */
mov save_rsi, %rsi
mov save_rbx, %rbx
mov save_r12, %r12
mov save_r13, %r13
mov save_r14, %r14
mov save_r15, %r15
ret
match_init: ret
@@ -1,51 +0,0 @@
This is a patched version of zlib, modified to use
Pentium-Pro-optimized assembly code in the deflation algorithm. The
files changed/added by this patch are:
README.686
match.S
The speedup that this patch provides varies, depending on whether the
compiler used to build the original version of zlib falls afoul of the
PPro's speed traps. My own tests show a speedup of around 10-20% at
the default compression level, and 20-30% using -9, against a version
compiled using gcc 2.7.2.3. Your mileage may vary.
Note that this code has been tailored for the PPro/PII in particular,
and will not perform particuarly well on a Pentium.
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
Update:
I've been ignoring these assembly routines for years, believing that
gcc's generated code had caught up with it sometime around gcc 2.95
and the major rearchitecting of the Pentium 4. However, I recently
learned that, despite what I believed, this code still has some life
in it. On the Pentium 4 and AMD64 chips, it continues to run about 8%
faster than the code produced by gcc 4.1.
In acknowledgement of its continuing usefulness, I've altered the
license to match that of the rest of zlib. Share and Enjoy!
Brian Raiter
breadbox@muppetlabs.com
April, 2007
-357
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@@ -1,357 +0,0 @@
/* match.S -- x86 assembly version of the zlib longest_match() function.
* Optimized for the Intel 686 chips (PPro and later).
*
* Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com>
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the author 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.
*/
#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 chainlenwmask 0 /* high word: current chain len */
/* low word: s->wmask */
#define window 4 /* local copy of s->window */
#define windowbestlen 8 /* s->window + bestlen */
#define scanstart 16 /* first two bytes of string */
#define scanend 12 /* last 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
/* 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) */
.cfi_sections .debug_frame
longest_match:
.cfi_startproc
/* Save registers that the compiler may be using, and adjust %esp to */
/* make room for our stack frame. */
pushl %ebp
.cfi_def_cfa_offset 8
.cfi_offset ebp, -8
pushl %edi
.cfi_def_cfa_offset 12
pushl %esi
.cfi_def_cfa_offset 16
pushl %ebx
.cfi_def_cfa_offset 20
subl $LocalVarsSize, %esp
.cfi_def_cfa_offset LocalVarsSize+20
/* 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
/* uInt wmask = s->w_mask; */
/* 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 dsWMask(%edx), %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 wmask */
/* value, which it will always accompany. */
decl %ebx
shll $16, %ebx
orl %eax, %ebx
movl %ebx, chainlenwmask(%esp)
/* 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:
/* 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); */
/* Posf *prev = s->prev; */
movzwl (%edi), %ebx
movl %ebx, scanstart(%esp)
movzwl -1(%edi,%eax), %ebx
movl %ebx, scanend(%esp)
movl dsPrev(%edx), %edi
/* Jump into the main loop. */
movl chainlenwmask(%esp), %edx
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 = scanend
* %ecx = curmatch
* %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
* %esi = windowbestlen - i.e., (window + bestlen)
* %edi = prev
* %ebp = limit
*/
LookupLoop:
andl %edx, %ecx
movzwl (%edi,%ecx,2), %ecx
cmpl %ebp, %ecx
jbe LeaveNow
subl $0x00010000, %edx
js LeaveNow
LoopEntry: movzwl -1(%esi,%ecx), %eax
cmpl %ebx, %eax
jnz LookupLoop
movl window(%esp), %eax
movzwl (%eax,%ecx), %eax
cmpl scanstart(%esp), %eax
jnz LookupLoop
/* Store the current value of chainlen. */
movl %edx, chainlenwmask(%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
xorl (%edi,%edx), %eax
jnz LeaveLoopCmps
movl 4(%esi,%edx), %eax
xorl 4(%edi,%edx), %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 windowbestlen(%esp), %esi
movl dsPrev(%edx), %edi
movl scanend(%esp), %ebx
movl chainlenwmask(%esp), %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)
movzwl -1(%edi,%eax), %ebx
movl dsPrev(%edx), %edi
movl %ebx, scanend(%esp)
movl chainlenwmask(%esp), %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
.cfi_def_cfa_offset 20
popl %ebx
.cfi_def_cfa_offset 16
popl %esi
.cfi_def_cfa_offset 12
popl %edi
.cfi_def_cfa_offset 8
popl %ebp
.cfi_def_cfa_offset 4
.cfi_endproc
match_init: ret
File diff suppressed because it is too large Load Diff
File diff suppressed because it is too large Load Diff
@@ -1,2 +0,0 @@
ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
@@ -1,553 +0,0 @@
;uInt longest_match_x64(
; deflate_state *s,
; IPos cur_match); /* current match */
; gvmat64.asm -- Asm portion of the optimized longest_match for 32 bits x86_64
; (AMD64 on Athlon 64, Opteron, Phenom
; and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
;
; File written by Gilles Vollant, by converting to assembly the longest_match
; from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
;
; and by taking inspiration on asm686 with masm, optimised assembly code
; from Brian Raiter, written 1998
;
; 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.
;
;
;
; http://www.zlib.net
; http://www.winimage.com/zLibDll
; http://www.muppetlabs.com/~breadbox/software/assembly.html
;
; to compile this file for infozip Zip, I use option:
; ml64.exe /Flgvmat64 /c /Zi /DINFOZIP gvmat64.asm
;
; to compile this file for zLib, I use option:
; ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
; Be carrefull to adapt zlib1222add below to your version of zLib
; (if you use a version of zLib before 1.0.4 or after 1.2.2.2, change
; value of zlib1222add later)
;
; This file compile with Microsoft Macro Assembler (x64) for AMD64
;
; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
;
; (you can get Windows WDK with ml64 for AMD64 from
; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
;
;uInt longest_match(s, cur_match)
; deflate_state *s;
; IPos cur_match; /* current match */
.code
longest_match PROC
;LocalVarsSize equ 88
LocalVarsSize equ 72
; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
; free register : r14,r15
; register can be saved : rsp
chainlenwmask equ rsp + 8 - LocalVarsSize ; high word: current chain len
; low word: s->wmask
;window equ rsp + xx - LocalVarsSize ; local copy of s->window ; stored in r10
;windowbestlen equ rsp + xx - LocalVarsSize ; s->window + bestlen , use r10+r11
;scanstart equ rsp + xx - LocalVarsSize ; first two bytes of string ; stored in r12w
;scanend equ rsp + xx - LocalVarsSize ; last two bytes of string use ebx
;scanalign equ rsp + xx - LocalVarsSize ; dword-misalignment of string r13
;bestlen equ rsp + xx - LocalVarsSize ; size of best match so far -> r11d
;scan equ rsp + xx - LocalVarsSize ; ptr to string wanting match -> r9
IFDEF INFOZIP
ELSE
nicematch equ (rsp + 16 - LocalVarsSize) ; a good enough match size
ENDIF
save_rdi equ rsp + 24 - LocalVarsSize
save_rsi equ rsp + 32 - LocalVarsSize
save_rbx equ rsp + 40 - LocalVarsSize
save_rbp equ rsp + 48 - LocalVarsSize
save_r12 equ rsp + 56 - LocalVarsSize
save_r13 equ rsp + 64 - LocalVarsSize
;save_r14 equ rsp + 72 - LocalVarsSize
;save_r15 equ rsp + 80 - LocalVarsSize
; summary of register usage
; scanend ebx
; scanendw bx
; chainlenwmask edx
; curmatch rsi
; curmatchd esi
; windowbestlen r8
; scanalign r9
; scanalignd r9d
; window r10
; bestlen r11
; bestlend r11d
; scanstart r12d
; scanstartw r12w
; scan r13
; nicematch r14d
; limit r15
; limitd r15d
; prev rcx
; all the +4 offsets are due to the addition of pending_buf_size (in zlib
; in the deflate_state structure since the asm code was first written
; (if you compile with zlib 1.0.4 or older, remove the +4).
; Note : these value are good with a 8 bytes boundary pack structure
MAX_MATCH equ 258
MIN_MATCH equ 3
MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
;;; 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").
IFDEF INFOZIP
_DATA SEGMENT
COMM window_size:DWORD
; WMask ; 7fff
COMM window:BYTE:010040H
COMM prev:WORD:08000H
; MatchLen : unused
; PrevMatch : unused
COMM strstart:DWORD
COMM match_start:DWORD
; Lookahead : ignore
COMM prev_length:DWORD ; PrevLen
COMM max_chain_length:DWORD
COMM good_match:DWORD
COMM nice_match:DWORD
prev_ad equ OFFSET prev
window_ad equ OFFSET window
nicematch equ nice_match
_DATA ENDS
WMask equ 07fffh
ELSE
IFNDEF zlib1222add
zlib1222add equ 8
ENDIF
dsWSize equ 56+zlib1222add+(zlib1222add/2)
dsWMask equ 64+zlib1222add+(zlib1222add/2)
dsWindow equ 72+zlib1222add
dsPrev equ 88+zlib1222add
dsMatchLen equ 128+zlib1222add
dsPrevMatch equ 132+zlib1222add
dsStrStart equ 140+zlib1222add
dsMatchStart equ 144+zlib1222add
dsLookahead equ 148+zlib1222add
dsPrevLen equ 152+zlib1222add
dsMaxChainLen equ 156+zlib1222add
dsGoodMatch equ 172+zlib1222add
dsNiceMatch equ 176+zlib1222add
window_size equ [ rcx + dsWSize]
WMask equ [ rcx + dsWMask]
window_ad equ [ rcx + dsWindow]
prev_ad equ [ rcx + dsPrev]
strstart equ [ rcx + dsStrStart]
match_start equ [ rcx + dsMatchStart]
Lookahead equ [ rcx + dsLookahead] ; 0ffffffffh on infozip
prev_length equ [ rcx + dsPrevLen]
max_chain_length equ [ rcx + dsMaxChainLen]
good_match equ [ rcx + dsGoodMatch]
nice_match equ [ rcx + dsNiceMatch]
ENDIF
; parameter 1 in r8(deflate state s), param 2 in rdx (cur match)
; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
;
; All registers must be preserved across the call, except for
; rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
;;; Save registers that the compiler may be using, and adjust esp to
;;; make room for our stack frame.
;;; Retrieve the function arguments. r8d 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.
; parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
mov [save_rdi],rdi
mov [save_rsi],rsi
mov [save_rbx],rbx
mov [save_rbp],rbp
IFDEF INFOZIP
mov r8d,ecx
ELSE
mov r8d,edx
ENDIF
mov [save_r12],r12
mov [save_r13],r13
; mov [save_r14],r14
; mov [save_r15],r15
;;; uInt wmask = s->w_mask;
;;; unsigned chain_length = s->max_chain_length;
;;; if (s->prev_length >= s->good_match) {
;;; chain_length >>= 2;
;;; }
mov edi, prev_length
mov esi, good_match
mov eax, WMask
mov ebx, max_chain_length
cmp edi, esi
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
;;; on zlib only
;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
IFDEF INFOZIP
mov [chainlenwmask], ebx
; on infozip nice_match = [nice_match]
ELSE
mov eax, nice_match
mov [chainlenwmask], ebx
mov r10d, Lookahead
cmp r10d, eax
cmovnl r10d, eax
mov [nicematch],r10d
ENDIF
;;; register Bytef *scan = s->window + s->strstart;
mov r10, window_ad
mov ebp, strstart
lea r13, [r10 + rbp]
;;; Determine how many bytes the scan ptr is off from being
;;; dword-aligned.
mov r9,r13
neg r13
and r13,3
;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
;;; s->strstart - (IPos)MAX_DIST(s) : NIL;
IFDEF INFOZIP
mov eax,07efah ; MAX_DIST = (WSIZE-MIN_LOOKAHEAD) (0x8000-(3+8+1))
ELSE
mov eax, window_size
sub eax, MIN_LOOKAHEAD
ENDIF
xor edi,edi
sub ebp, eax
mov r11d, prev_length
cmovng ebp,edi
;;; int best_len = s->prev_length;
;;; Store the sum of s->window + best_len in esi locally, and in esi.
lea rsi,[r10+r11]
;;; register ush scan_start = *(ushf*)scan;
;;; register ush scan_end = *(ushf*)(scan+best_len-1);
;;; Posf *prev = s->prev;
movzx r12d,word ptr [r9]
movzx ebx, word ptr [r9 + r11 - 1]
mov rdi, prev_ad
;;; Jump into the main loop.
mov edx, [chainlenwmask]
cmp bx,word ptr [rsi + r8 - 1]
jz LookupLoopIsZero
LookupLoop1:
and r8d, edx
movzx r8d, word ptr [rdi + r8*2]
cmp r8d, ebp
jbe LeaveNow
sub edx, 00010000h
js LeaveNow
LoopEntry1:
cmp bx,word ptr [rsi + r8 - 1]
jz LookupLoopIsZero
LookupLoop2:
and r8d, edx
movzx r8d, word ptr [rdi + r8*2]
cmp r8d, ebp
jbe LeaveNow
sub edx, 00010000h
js LeaveNow
LoopEntry2:
cmp bx,word ptr [rsi + r8 - 1]
jz LookupLoopIsZero
LookupLoop4:
and r8d, edx
movzx r8d, word ptr [rdi + r8*2]
cmp r8d, ebp
jbe LeaveNow
sub edx, 00010000h
js LeaveNow
LoopEntry4:
cmp bx,word ptr [rsi + r8 - 1]
jnz LookupLoop1
jmp LookupLoopIsZero
;;; 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
;;; r8d = curmatch
;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
;;; esi = windowbestlen - i.e., (window + bestlen)
;;; edi = prev
;;; ebp = limit
LookupLoop:
and r8d, edx
movzx r8d, word ptr [rdi + r8*2]
cmp r8d, ebp
jbe LeaveNow
sub edx, 00010000h
js LeaveNow
LoopEntry:
cmp bx,word ptr [rsi + r8 - 1]
jnz LookupLoop1
LookupLoopIsZero:
cmp r12w, word ptr [r10 + r8]
jnz LookupLoop1
;;; 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).
lea rsi,[r8+r10]
mov rdx, 0fffffffffffffef8h; -(MAX_MATCH_8)
lea rsi, [rsi + r13 + 0108h] ;MAX_MATCH_8]
lea rdi, [r9 + r13 + 0108h] ;MAX_MATCH_8]
prefetcht1 [rsi+rdx]
prefetcht1 [rdi+rdx]
;;; Test the strings for equality, 8 bytes at a time. At the end,
;;; adjust rdx 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. (rsi 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 rax, [rsi + rdx]
xor rax, [rdi + rdx]
jnz LeaveLoopCmps
mov rax, [rsi + rdx + 8]
xor rax, [rdi + rdx + 8]
jnz LeaveLoopCmps8
mov rax, [rsi + rdx + 8+8]
xor rax, [rdi + rdx + 8+8]
jnz LeaveLoopCmps16
add rdx,8+8+8
jnz short LoopCmps
jmp short LenMaximum
LeaveLoopCmps16: add rdx,8
LeaveLoopCmps8: add rdx,8
LeaveLoopCmps:
test eax, 0000FFFFh
jnz LenLower
test eax,0ffffffffh
jnz LenLower32
add rdx,4
shr rax,32
or ax,ax
jnz LenLower
LenLower32:
shr eax,16
add rdx,2
LenLower: sub al, 1
adc rdx, 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 rax, [rdi + rdx]
sub rax, r9
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.
;///////////////////////////////////
cmp eax, r11d
jg LongerMatch
lea rsi,[r10+r11]
mov rdi, prev_ad
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 r11d, eax
mov match_start, r8d
cmp eax, [nicematch]
jge LeaveNow
lea rsi,[r10+rax]
movzx ebx, word ptr [r9 + rax - 1]
mov rdi, prev_ad
mov edx, [chainlenwmask]
jmp LookupLoop
;;; Accept the current string, with the maximum possible length.
LenMaximum:
mov r11d,MAX_MATCH
mov match_start, r8d
;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
;;; return s->lookahead;
LeaveNow:
IFDEF INFOZIP
mov eax,r11d
ELSE
mov eax, Lookahead
cmp r11d, eax
cmovng eax, r11d
ENDIF
;;; Restore the stack and return from whence we came.
mov rsi,[save_rsi]
mov rdi,[save_rdi]
mov rbx,[save_rbx]
mov rbp,[save_rbp]
mov r12,[save_r12]
mov r13,[save_r13]
; mov r14,[save_r14]
; mov r15,[save_r15]
ret 0
; please don't remove this string !
; Your can freely use gvmat64 in any free or commercial app
; but it is far better don't remove the string in the binary!
db 0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
longest_match ENDP
match_init PROC
ret 0
match_init ENDP
END
@@ -1,186 +0,0 @@
/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding
* version for AMD64 on Windows using Microsoft C compiler
*
* Copyright (C) 1995-2003 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Copyright (C) 2003 Chris Anderson <christop@charm.net>
* Please use the copyright conditions above.
*
* 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant
*
* inffas8664.c call function inffas8664fnc in inffasx64.asm
* inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
*
* Dec-29-2003 -- I added AMD64 inflate asm support. This version is also
* slightly quicker on x86 systems because, instead of using rep movsb to copy
* data, it uses rep movsw, which moves data in 2-byte chunks instead of single
* bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
* from http://fedora.linux.duke.edu/fc1_x86_64
* which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
* 1GB ram. The 64-bit version is about 4% faster than the 32-bit version,
* when decompressing mozilla-source-1.3.tar.gz.
*
* Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
* the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
* the moment. I have successfully compiled and tested this code with gcc2.96,
* gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
* compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
* enabled. I will attempt to merge the MMX code into this version. Newer
* versions of this and inffast.S can be found at
* http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
*
*/
#include <stdio.h>
#include "zutil.h"
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
/* Mark Adler's comments from inffast.c: */
/*
Decode literal, length, and distance codes and write out the resulting
literal and match bytes until either not enough input or output is
available, an end-of-block is encountered, or a data error is encountered.
When large enough input and output buffers are supplied to inflate(), for
example, a 16K input buffer and a 64K output buffer, more than 95% of the
inflate execution time is spent in this routine.
Entry assumptions:
state->mode == LEN
strm->avail_in >= 6
strm->avail_out >= 258
start >= strm->avail_out
state->bits < 8
On return, state->mode is one of:
LEN -- ran out of enough output space or enough available input
TYPE -- reached end of block code, inflate() to interpret next block
BAD -- error in block data
Notes:
- The maximum input bits used by a length/distance pair is 15 bits for the
length code, 5 bits for the length extra, 15 bits for the distance code,
and 13 bits for the distance extra. This totals 48 bits, or six bytes.
Therefore if strm->avail_in >= 6, then there is enough input to avoid
checking for available input while decoding.
- The maximum bytes that a single length/distance pair can output is 258
bytes, which is the maximum length that can be coded. inflate_fast()
requires strm->avail_out >= 258 for each loop to avoid checking for
output space.
*/
typedef struct inffast_ar {
/* 64 32 x86 x86_64 */
/* ar offset register */
/* 0 0 */ void *esp; /* esp save */
/* 8 4 */ void *ebp; /* ebp save */
/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */
/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */
/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */
/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */
/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */
/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */
/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */
/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */
/* 80 40 */ size_t /*unsigned long */hold; /* edx rdx local strm->hold */
/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */
/* 92 48 */ unsigned wsize; /* window size */
/* 96 52 */ unsigned write; /* window write index */
/*100 56 */ unsigned lmask; /* r12 mask for lcode */
/*104 60 */ unsigned dmask; /* r13 mask for dcode */
/*108 64 */ unsigned len; /* r14 match length */
/*112 68 */ unsigned dist; /* r15 match distance */
/*116 72 */ unsigned status; /* set when state chng*/
} type_ar;
#ifdef ASMINF
void inflate_fast(strm, start)
z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
struct inflate_state FAR *state;
type_ar ar;
void inffas8664fnc(struct inffast_ar * par);
#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))
#define PAD_AVAIL_IN 6
#define PAD_AVAIL_OUT 258
#else
#define PAD_AVAIL_IN 5
#define PAD_AVAIL_OUT 257
#endif
/* copy state to local variables */
state = (struct inflate_state FAR *)strm->state;
ar.in = strm->next_in;
ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
ar.out = strm->next_out;
ar.beg = ar.out - (start - strm->avail_out);
ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
ar.wsize = state->wsize;
ar.write = state->wnext;
ar.window = state->window;
ar.hold = state->hold;
ar.bits = state->bits;
ar.lcode = state->lencode;
ar.dcode = state->distcode;
ar.lmask = (1U << state->lenbits) - 1;
ar.dmask = (1U << state->distbits) - 1;
/* decode literals and length/distances until end-of-block or not enough
input data or output space */
/* align in on 1/2 hold size boundary */
while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
ar.hold += (unsigned long)*ar.in++ << ar.bits;
ar.bits += 8;
}
inffas8664fnc(&ar);
if (ar.status > 1) {
if (ar.status == 2)
strm->msg = "invalid literal/length code";
else if (ar.status == 3)
strm->msg = "invalid distance code";
else
strm->msg = "invalid distance too far back";
state->mode = BAD;
}
else if ( ar.status == 1 ) {
state->mode = TYPE;
}
/* return unused bytes (on entry, bits < 8, so in won't go too far back) */
ar.len = ar.bits >> 3;
ar.in -= ar.len;
ar.bits -= ar.len << 3;
ar.hold &= (1U << ar.bits) - 1;
/* update state and return */
strm->next_in = ar.in;
strm->next_out = ar.out;
strm->avail_in = (unsigned)(ar.in < ar.last ?
PAD_AVAIL_IN + (ar.last - ar.in) :
PAD_AVAIL_IN - (ar.in - ar.last));
strm->avail_out = (unsigned)(ar.out < ar.end ?
PAD_AVAIL_OUT + (ar.end - ar.out) :
PAD_AVAIL_OUT - (ar.out - ar.end));
state->hold = (unsigned long)ar.hold;
state->bits = ar.bits;
return;
}
#endif
@@ -1,396 +0,0 @@
; inffasx64.asm is a hand tuned assembler version of inffast.c - fast decoding
; version for AMD64 on Windows using Microsoft C compiler
;
; inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
; inffasx64.asm is called by inffas8664.c, which contain more info.
; to compile this file, I use option
; ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
; with Microsoft Macro Assembler (x64) for AMD64
;
; This file compile with Microsoft Macro Assembler (x64) for AMD64
;
; ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
;
; (you can get Windows WDK with ml64 for AMD64 from
; http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
;
.code
inffas8664fnc PROC
; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
;
; All registers must be preserved across the call, except for
; rax, rcx, rdx, r8, r-9, r10, and r11, which are scratch.
mov [rsp-8],rsi
mov [rsp-16],rdi
mov [rsp-24],r12
mov [rsp-32],r13
mov [rsp-40],r14
mov [rsp-48],r15
mov [rsp-56],rbx
mov rax,rcx
mov [rax+8], rbp ; /* save regs rbp and rsp */
mov [rax], rsp
mov rsp, rax ; /* make rsp point to &ar */
mov rsi, [rsp+16] ; /* rsi = in */
mov rdi, [rsp+32] ; /* rdi = out */
mov r9, [rsp+24] ; /* r9 = last */
mov r10, [rsp+48] ; /* r10 = end */
mov rbp, [rsp+64] ; /* rbp = lcode */
mov r11, [rsp+72] ; /* r11 = dcode */
mov rdx, [rsp+80] ; /* rdx = hold */
mov ebx, [rsp+88] ; /* ebx = bits */
mov r12d, [rsp+100] ; /* r12d = lmask */
mov r13d, [rsp+104] ; /* r13d = dmask */
; /* r14d = len */
; /* r15d = dist */
cld
cmp r10, rdi
je L_one_time ; /* if only one decode left */
cmp r9, rsi
jne L_do_loop
L_one_time:
mov r8, r12 ; /* r8 = lmask */
cmp bl, 32
ja L_get_length_code_one_time
lodsd ; /* eax = *(uint *)in++ */
mov cl, bl ; /* cl = bits, needs it for shifting */
add bl, 32 ; /* bits += 32 */
shl rax, cl
or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
jmp L_get_length_code_one_time
ALIGN 4
L_while_test:
cmp r10, rdi
jbe L_break_loop
cmp r9, rsi
jbe L_break_loop
L_do_loop:
mov r8, r12 ; /* r8 = lmask */
cmp bl, 32
ja L_get_length_code ; /* if (32 < bits) */
lodsd ; /* eax = *(uint *)in++ */
mov cl, bl ; /* cl = bits, needs it for shifting */
add bl, 32 ; /* bits += 32 */
shl rax, cl
or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
L_get_length_code:
and r8, rdx ; /* r8 &= hold */
mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
mov cl, ah ; /* cl = this.bits */
sub bl, ah ; /* bits -= this.bits */
shr rdx, cl ; /* hold >>= this.bits */
test al, al
jnz L_test_for_length_base ; /* if (op != 0) 45.7% */
mov r8, r12 ; /* r8 = lmask */
shr eax, 16 ; /* output this.val char */
stosb
L_get_length_code_one_time:
and r8, rdx ; /* r8 &= hold */
mov eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
L_dolen:
mov cl, ah ; /* cl = this.bits */
sub bl, ah ; /* bits -= this.bits */
shr rdx, cl ; /* hold >>= this.bits */
test al, al
jnz L_test_for_length_base ; /* if (op != 0) 45.7% */
shr eax, 16 ; /* output this.val char */
stosb
jmp L_while_test
ALIGN 4
L_test_for_length_base:
mov r14d, eax ; /* len = this */
shr r14d, 16 ; /* len = this.val */
mov cl, al
test al, 16
jz L_test_for_second_level_length ; /* if ((op & 16) == 0) 8% */
and cl, 15 ; /* op &= 15 */
jz L_decode_distance ; /* if (!op) */
L_add_bits_to_len:
sub bl, cl
xor eax, eax
inc eax
shl eax, cl
dec eax
and eax, edx ; /* eax &= hold */
shr rdx, cl
add r14d, eax ; /* len += hold & mask[op] */
L_decode_distance:
mov r8, r13 ; /* r8 = dmask */
cmp bl, 32
ja L_get_distance_code ; /* if (32 < bits) */
lodsd ; /* eax = *(uint *)in++ */
mov cl, bl ; /* cl = bits, needs it for shifting */
add bl, 32 ; /* bits += 32 */
shl rax, cl
or rdx, rax ; /* hold |= *((uint *)in)++ << bits */
L_get_distance_code:
and r8, rdx ; /* r8 &= hold */
mov eax, [r11+r8*4] ; /* eax = dcode[hold & dmask] */
L_dodist:
mov r15d, eax ; /* dist = this */
shr r15d, 16 ; /* dist = this.val */
mov cl, ah
sub bl, ah ; /* bits -= this.bits */
shr rdx, cl ; /* hold >>= this.bits */
mov cl, al ; /* cl = this.op */
test al, 16 ; /* if ((op & 16) == 0) */
jz L_test_for_second_level_dist
and cl, 15 ; /* op &= 15 */
jz L_check_dist_one
L_add_bits_to_dist:
sub bl, cl
xor eax, eax
inc eax
shl eax, cl
dec eax ; /* (1 << op) - 1 */
and eax, edx ; /* eax &= hold */
shr rdx, cl
add r15d, eax ; /* dist += hold & ((1 << op) - 1) */
L_check_window:
mov r8, rsi ; /* save in so from can use it's reg */
mov rax, rdi
sub rax, [rsp+40] ; /* nbytes = out - beg */
cmp eax, r15d
jb L_clip_window ; /* if (dist > nbytes) 4.2% */
mov ecx, r14d ; /* ecx = len */
mov rsi, rdi
sub rsi, r15 ; /* from = out - dist */
sar ecx, 1
jnc L_copy_two ; /* if len % 2 == 0 */
rep movsw
mov al, [rsi]
mov [rdi], al
inc rdi
mov rsi, r8 ; /* move in back to %rsi, toss from */
jmp L_while_test
L_copy_two:
rep movsw
mov rsi, r8 ; /* move in back to %rsi, toss from */
jmp L_while_test
ALIGN 4
L_check_dist_one:
cmp r15d, 1 ; /* if dist 1, is a memset */
jne L_check_window
cmp [rsp+40], rdi ; /* if out == beg, outside window */
je L_check_window
mov ecx, r14d ; /* ecx = len */
mov al, [rdi-1]
mov ah, al
sar ecx, 1
jnc L_set_two
mov [rdi], al
inc rdi
L_set_two:
rep stosw
jmp L_while_test
ALIGN 4
L_test_for_second_level_length:
test al, 64
jnz L_test_for_end_of_block ; /* if ((op & 64) != 0) */
xor eax, eax
inc eax
shl eax, cl
dec eax
and eax, edx ; /* eax &= hold */
add eax, r14d ; /* eax += len */
mov eax, [rbp+rax*4] ; /* eax = lcode[val+(hold&mask[op])]*/
jmp L_dolen
ALIGN 4
L_test_for_second_level_dist:
test al, 64
jnz L_invalid_distance_code ; /* if ((op & 64) != 0) */
xor eax, eax
inc eax
shl eax, cl
dec eax
and eax, edx ; /* eax &= hold */
add eax, r15d ; /* eax += dist */
mov eax, [r11+rax*4] ; /* eax = dcode[val+(hold&mask[op])]*/
jmp L_dodist
ALIGN 4
L_clip_window:
mov ecx, eax ; /* ecx = nbytes */
mov eax, [rsp+92] ; /* eax = wsize, prepare for dist cmp */
neg ecx ; /* nbytes = -nbytes */
cmp eax, r15d
jb L_invalid_distance_too_far ; /* if (dist > wsize) */
add ecx, r15d ; /* nbytes = dist - nbytes */
cmp dword ptr [rsp+96], 0
jne L_wrap_around_window ; /* if (write != 0) */
mov rsi, [rsp+56] ; /* from = window */
sub eax, ecx ; /* eax -= nbytes */
add rsi, rax ; /* from += wsize - nbytes */
mov eax, r14d ; /* eax = len */
cmp r14d, ecx
jbe L_do_copy ; /* if (nbytes >= len) */
sub eax, ecx ; /* eax -= nbytes */
rep movsb
mov rsi, rdi
sub rsi, r15 ; /* from = &out[ -dist ] */
jmp L_do_copy
ALIGN 4
L_wrap_around_window:
mov eax, [rsp+96] ; /* eax = write */
cmp ecx, eax
jbe L_contiguous_in_window ; /* if (write >= nbytes) */
mov esi, [rsp+92] ; /* from = wsize */
add rsi, [rsp+56] ; /* from += window */
add rsi, rax ; /* from += write */
sub rsi, rcx ; /* from -= nbytes */
sub ecx, eax ; /* nbytes -= write */
mov eax, r14d ; /* eax = len */
cmp eax, ecx
jbe L_do_copy ; /* if (nbytes >= len) */
sub eax, ecx ; /* len -= nbytes */
rep movsb
mov rsi, [rsp+56] ; /* from = window */
mov ecx, [rsp+96] ; /* nbytes = write */
cmp eax, ecx
jbe L_do_copy ; /* if (nbytes >= len) */
sub eax, ecx ; /* len -= nbytes */
rep movsb
mov rsi, rdi
sub rsi, r15 ; /* from = out - dist */
jmp L_do_copy
ALIGN 4
L_contiguous_in_window:
mov rsi, [rsp+56] ; /* rsi = window */
add rsi, rax
sub rsi, rcx ; /* from += write - nbytes */
mov eax, r14d ; /* eax = len */
cmp eax, ecx
jbe L_do_copy ; /* if (nbytes >= len) */
sub eax, ecx ; /* len -= nbytes */
rep movsb
mov rsi, rdi
sub rsi, r15 ; /* from = out - dist */
jmp L_do_copy ; /* if (nbytes >= len) */
ALIGN 4
L_do_copy:
mov ecx, eax ; /* ecx = len */
rep movsb
mov rsi, r8 ; /* move in back to %esi, toss from */
jmp L_while_test
L_test_for_end_of_block:
test al, 32
jz L_invalid_literal_length_code
mov dword ptr [rsp+116], 1
jmp L_break_loop_with_status
L_invalid_literal_length_code:
mov dword ptr [rsp+116], 2
jmp L_break_loop_with_status
L_invalid_distance_code:
mov dword ptr [rsp+116], 3
jmp L_break_loop_with_status
L_invalid_distance_too_far:
mov dword ptr [rsp+116], 4
jmp L_break_loop_with_status
L_break_loop:
mov dword ptr [rsp+116], 0
L_break_loop_with_status:
; /* put in, out, bits, and hold back into ar and pop esp */
mov [rsp+16], rsi ; /* in */
mov [rsp+32], rdi ; /* out */
mov [rsp+88], ebx ; /* bits */
mov [rsp+80], rdx ; /* hold */
mov rax, [rsp] ; /* restore rbp and rsp */
mov rbp, [rsp+8]
mov rsp, rax
mov rsi,[rsp-8]
mov rdi,[rsp-16]
mov r12,[rsp-24]
mov r13,[rsp-32]
mov r14,[rsp-40]
mov r15,[rsp-48]
mov rbx,[rsp-56]
ret 0
; :
; : "m" (ar)
; : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
; "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
; );
inffas8664fnc ENDP
;_TEXT ENDS
END
@@ -1,31 +0,0 @@
Summary
-------
This directory contains ASM implementations of the functions
longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),
for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.
gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits
assembly optimized version from Jean-loup Gailly original longest_match function
inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing
original function from Mark Adler
Use instructions
----------------
Assemble the .asm files using MASM and put the object files into the zlib source
directory. You can also get object files here:
http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,
and inffasx64.obj and gvmat64.obj as object to link.
Build instructions
------------------
run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)
ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK
You can get Windows 2003 server DDK with ml64 and cl for AMD64 from
http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)
@@ -1,2 +0,0 @@
ml /coff /Zi /c /Flmatch686.lst match686.asm
ml /coff /Zi /c /Flinffas32.lst inffas32.asm
File diff suppressed because it is too large Load Diff
@@ -1,479 +0,0 @@
; match686.asm -- Asm portion of the optimized longest_match for 32 bits x86
; Copyright (C) 1995-1996 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
; File written by Gilles Vollant, by converting match686.S from Brian Raiter
; for MASM. This is as assembly version of 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 distributed in
; http://www.microsoft.com/downloads/details.aspx?FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
;
; this file contain two implementation of longest_match
;
; this longest_match was written by Brian raiter (1998), optimized for Pentium Pro
; (and the faster known version of match_init on modern Core 2 Duo and AMD Phenom)
;
; for using an assembly version of longest_match, you need define ASMV in project
;
; compile the asm file running
; ml /coff /Zi /c /Flmatch686.lst match686.asm
; and do not include match686.obj in your project
;
; note: contrib of zLib 1.2.3 and earlier contained both a deprecated version for
; Pentium (prior Pentium Pro) and this version for Pentium Pro and modern processor
; with autoselect (with cpu detection code)
; if you want support the old pentium optimization, you can still use these version
;
; this file is not optimized for old pentium, but it compatible with all x86 32 bits
; processor (starting 80386)
;
;
; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2
;uInt longest_match(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
public longest_match
public match_init
ELSE
public _longest_match
public _match_init
ENDIF
MAX_MATCH equ 258
MIN_MATCH equ 3
MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
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
;;; match686.asm -- Pentium-Pro-optimized version of longest_match()
;;; Written for zlib 1.1.2
;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html
;;;
;;
;; 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.
;;
;GLOBAL _longest_match, _match_init
;SECTION .text
;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
;_longest_match:
IFDEF NOUNDERLINE
longest_match proc near
ELSE
_longest_match proc near
ENDIF
.FPO (9, 4, 0, 0, 1, 0)
;;; 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 match686 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 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
_TEXT ends
end
@@ -1,27 +0,0 @@
Summary
-------
This directory contains ASM implementations of the functions
longest_match() and inflate_fast().
Use instructions
----------------
Assemble using MASM, and copy the object files into the zlib source
directory, then run the appropriate makefile, as suggested below. You can
donwload MASM from here:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
You can also get objects files here:
http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
Build instructions
------------------
* With Microsoft C and MASM:
nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj"
* With Borland C and TASM:
make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj" OBJPA="+match686c.obj+match686.obj+inffas32.obj"
@@ -1,6 +0,0 @@
MiniZip 1.1 was derrived from MiniZip at version 1.01f
Change in 1.0 (Okt 2009)
- **TODO - Add history**
-367
View File
@@ -1,367 +0,0 @@
/* zip.h -- IO on .zip files using zlib
Version 1.1, February 14h, 2010
part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
Modifications for Zip64 support
Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
For more info read MiniZip_info.txt
---------------------------------------------------------------------------
Condition of use and distribution are the same than zlib :
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.
---------------------------------------------------------------------------
Changes
See header of zip.h
*/
#ifndef _zip12_H
#define _zip12_H
#ifdef __cplusplus
extern "C" {
#endif
//#define HAVE_BZIP2
#ifndef _ZLIB_H
#include "zlib.h"
#endif
#ifndef _ZLIBIOAPI_H
#include "ioapi.h"
#endif
#ifdef HAVE_BZIP2
#include "bzlib.h"
#endif
#define Z_BZIP2ED 12
#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
typedef struct TagzipFile__ { int unused; } zipFile__;
typedef zipFile__ *zipFile;
#else
typedef voidp zipFile;
#endif
#define ZIP_OK (0)
#define ZIP_EOF (0)
#define ZIP_ERRNO (Z_ERRNO)
#define ZIP_PARAMERROR (-102)
#define ZIP_BADZIPFILE (-103)
#define ZIP_INTERNALERROR (-104)
#ifndef DEF_MEM_LEVEL
# if MAX_MEM_LEVEL >= 8
# define DEF_MEM_LEVEL 8
# else
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
# endif
#endif
/* default memLevel */
/* tm_zip contain date/time info */
typedef struct tm_zip_s
{
int tm_sec; /* seconds after the minute - [0,59] */
int tm_min; /* minutes after the hour - [0,59] */
int tm_hour; /* hours since midnight - [0,23] */
int tm_mday; /* day of the month - [1,31] */
int tm_mon; /* months since January - [0,11] */
int tm_year; /* years - [1980..2044] */
} tm_zip;
typedef struct
{
tm_zip tmz_date; /* date in understandable format */
uLong dosDate; /* if dos_date == 0, tmu_date is used */
/* uLong flag; */ /* general purpose bit flag 2 bytes */
uLong internal_fa; /* internal file attributes 2 bytes */
uLong external_fa; /* external file attributes 4 bytes */
} zip_fileinfo;
typedef const char* zipcharpc;
#define APPEND_STATUS_CREATE (0)
#define APPEND_STATUS_CREATEAFTER (1)
#define APPEND_STATUS_ADDINZIP (2)
extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
extern zipFile ZEXPORT zipOpen64 OF((const void *pathname, int append));
/*
Create a zipfile.
pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
an Unix computer "zlib/zlib113.zip".
if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
will be created at the end of the file.
(useful if the file contain a self extractor code)
if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
add files in existing zip (be sure you don't add file that doesn't exist)
If the zipfile cannot be opened, the return value is NULL.
Else, the return value is a zipFile Handle, usable with other function
of this zip package.
*/
/* Note : there is no delete function into a zipfile.
If you want delete file into a zipfile, you must open a zipfile, and create another
Of couse, you can use RAW reading and writing to copy the file you did not want delte
*/
extern zipFile ZEXPORT zipOpen2 OF((const char *pathname,
int append,
zipcharpc* globalcomment,
zlib_filefunc_def* pzlib_filefunc_def));
extern zipFile ZEXPORT zipOpen2_64 OF((const void *pathname,
int append,
zipcharpc* globalcomment,
zlib_filefunc64_def* pzlib_filefunc_def));
extern zipFile ZEXPORT zipOpen3 OF((const void *pathname,
int append,
zipcharpc* globalcomment,
zlib_filefunc64_32_def* pzlib_filefunc64_32_def));
extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level));
extern int ZEXPORT zipOpenNewFileInZip64 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int zip64));
/*
Open a file in the ZIP for writing.
filename : the filename in zip (if NULL, '-' without quote will be used
*zipfi contain supplemental information
if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
contains the extrafield data the the local header
if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
contains the extrafield data the the local header
if comment != NULL, comment contain the comment string
method contain the compression method (0 for store, Z_DEFLATED for deflate)
level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
zip64 is set to 1 if a zip64 extended information block should be added to the local file header.
this MUST be '1' if the uncompressed size is >= 0xffffffff.
*/
extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw));
extern int ZEXPORT zipOpenNewFileInZip2_64 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int zip64));
/*
Same than zipOpenNewFileInZip, except if raw=1, we write raw file
*/
extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char* password,
uLong crcForCrypting));
extern int ZEXPORT zipOpenNewFileInZip3_64 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char* password,
uLong crcForCrypting,
int zip64
));
/*
Same than zipOpenNewFileInZip2, except
windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
password : crypting password (NULL for no crypting)
crcForCrypting : crc of file to compress (needed for crypting)
*/
extern int ZEXPORT zipOpenNewFileInZip4 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char* password,
uLong crcForCrypting,
uLong versionMadeBy,
uLong flagBase
));
extern int ZEXPORT zipOpenNewFileInZip4_64 OF((zipFile file,
const char* filename,
const zip_fileinfo* zipfi,
const void* extrafield_local,
uInt size_extrafield_local,
const void* extrafield_global,
uInt size_extrafield_global,
const char* comment,
int method,
int level,
int raw,
int windowBits,
int memLevel,
int strategy,
const char* password,
uLong crcForCrypting,
uLong versionMadeBy,
uLong flagBase,
int zip64
));
/*
Same than zipOpenNewFileInZip4, except
versionMadeBy : value for Version made by field
flag : value for flag field (compression level info will be added)
*/
extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
const void* buf,
unsigned len));
/*
Write data in the zipfile
*/
extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
/*
Close the current file in the zipfile
*/
extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
uLong uncompressed_size,
uLong crc32));
extern int ZEXPORT zipCloseFileInZipRaw64 OF((zipFile file,
ZPOS64_T uncompressed_size,
uLong crc32));
/*
Close the current file in the zipfile, for file opened with
parameter raw=1 in zipOpenNewFileInZip2
uncompressed_size and crc32 are value for the uncompressed size
*/
extern int ZEXPORT zipClose OF((zipFile file,
const char* global_comment));
/*
Close the zipfile
*/
extern int ZEXPORT zipRemoveExtraInfoBlock OF((char* pData, int* dataLen, short sHeader));
/*
zipRemoveExtraInfoBlock - Added by Mathias Svensson
Remove extra information block from a extra information data for the local file header or central directory header
It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode.
0x0001 is the signature header for the ZIP64 extra information blocks
usage.
Remove ZIP64 Extra information from a central director extra field data
zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001);
Remove ZIP64 Extra information from a Local File Header extra field data
zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001);
*/
#ifdef __cplusplus
}
#endif
#endif /* _zip64_H */
@@ -1,32 +0,0 @@
#include <windows.h>
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
FILEVERSION 1, 2, 12, 0
PRODUCTVERSION 1, 2, 12, 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 and ZIP file I/O library\0"
VALUE "FileVersion", "1.2.12\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlibwapi.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
VALUE "LegalCopyright", "(C) 1995-2022 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1252
END
END
@@ -1,158 +0,0 @@
LIBRARY
; zlib data compression and ZIP file I/O library
VERSION 1.2
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
deflatePending @52
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
; zlibwapi v1.2.4 added:
fill_win32_filefunc64 @111
fill_win32_filefunc64A @112
fill_win32_filefunc64W @113
unzOpen64 @120
unzOpen2_64 @121
unzGetGlobalInfo64 @122
unzGetCurrentFileInfo64 @124
unzGetCurrentFileZStreamPos64 @125
unztell64 @126
unzGetFilePos64 @127
unzGoToFilePos64 @128
zipOpen64 @130
zipOpen2_64 @131
zipOpenNewFileInZip64 @132
zipOpenNewFileInZip2_64 @133
zipOpenNewFileInZip3_64 @134
zipOpenNewFileInZip4_64 @135
zipCloseFileInZipRaw64 @136
; zlib1 v1.2.4 added:
adler32_combine @140
crc32_combine @142
deflateSetHeader @144
deflateTune @145
gzbuffer @146
gzclose_r @147
gzclose_w @148
gzdirect @149
gzoffset @150
inflateGetHeader @156
inflateMark @157
inflatePrime @158
inflateReset2 @159
inflateUndermine @160
; zlib1 v1.2.6 added:
gzgetc_ @161
inflateResetKeep @163
deflateResetKeep @164
; zlib1 v1.2.7 added:
gzopen_w @165
; zlib1 v1.2.8 added:
inflateGetDictionary @166
gzvprintf @167
; zlib1 v1.2.9 added:
inflateCodesUsed @168
inflateValidate @169
uncompress2 @170
gzfread @171
gzfwrite @172
deflateGetDictionary @173
adler32_z @174
crc32_z @175
; zlib1 v1.2.12 added:
crc32_combine_gen @176
crc32_combine_gen64 @177
crc32_combine_op @178
-479
View File
@@ -1,479 +0,0 @@
/* zran.c -- example of zlib/gzip stream indexing and random access
* Copyright (C) 2005, 2012, 2018 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
* Version 1.2 14 Oct 2018 Mark Adler */
/* Version History:
1.0 29 May 2005 First version
1.1 29 Sep 2012 Fix memory reallocation error
1.2 14 Oct 2018 Handle gzip streams with multiple members
Add a header file to facilitate usage in applications
*/
/* Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary()
for random access of a compressed file. A file containing a zlib or gzip
stream is provided on the command line. The compressed stream is decoded in
its entirety, and an index built with access points about every SPAN bytes
in the uncompressed output. The compressed file is left open, and can then
be read randomly, having to decompress on the average SPAN/2 uncompressed
bytes before getting to the desired block of data.
An access point can be created at the start of any deflate block, by saving
the starting file offset and bit of that block, and the 32K bytes of
uncompressed data that precede that block. Also the uncompressed offset of
that block is saved to provide a referece for locating a desired starting
point in the uncompressed stream. deflate_index_build() works by
decompressing the input zlib or gzip stream a block at a time, and at the
end of each block deciding if enough uncompressed data has gone by to
justify the creation of a new access point. If so, that point is saved in a
data structure that grows as needed to accommodate the points.
To use the index, an offset in the uncompressed data is provided, for which
the latest access point at or preceding that offset is located in the index.
The input file is positioned to the specified location in the index, and if
necessary the first few bits of the compressed data is read from the file.
inflate is initialized with those bits and the 32K of uncompressed data, and
the decompression then proceeds until the desired offset in the file is
reached. Then the decompression continues to read the desired uncompressed
data from the file.
Another approach would be to generate the index on demand. In that case,
requests for random access reads from the compressed data would try to use
the index, but if a read far enough past the end of the index is required,
then further index entries would be generated and added.
There is some fair bit of overhead to starting inflation for the random
access, mainly copying the 32K byte dictionary. So if small pieces of the
file are being accessed, it would make sense to implement a cache to hold
some lookahead and avoid many calls to deflate_index_extract() for small
lengths.
Another way to build an index would be to use inflateCopy(). That would
not be constrained to have access points at block boundaries, but requires
more memory per access point, and also cannot be saved to file due to the
use of pointers in the state. The approach here allows for storage of the
index in a file.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"
#include "zran.h"
#define WINSIZE 32768U /* sliding window size */
#define CHUNK 16384 /* file input buffer size */
/* Access point entry. */
struct point {
off_t out; /* corresponding offset in uncompressed data */
off_t in; /* offset in input file of first full byte */
int bits; /* number of bits (1-7) from byte at in-1, or 0 */
unsigned char window[WINSIZE]; /* preceding 32K of uncompressed data */
};
/* See comments in zran.h. */
void deflate_index_free(struct deflate_index *index)
{
if (index != NULL) {
free(index->list);
free(index);
}
}
/* Add an entry to the access point list. If out of memory, deallocate the
existing list and return NULL. index->gzip is the allocated size of the
index in point entries, until it is time for deflate_index_build() to
return, at which point gzip is set to indicate a gzip file or not.
*/
static struct deflate_index *addpoint(struct deflate_index *index, int bits,
off_t in, off_t out, unsigned left,
unsigned char *window)
{
struct point *next;
/* if list is empty, create it (start with eight points) */
if (index == NULL) {
index = malloc(sizeof(struct deflate_index));
if (index == NULL) return NULL;
index->list = malloc(sizeof(struct point) << 3);
if (index->list == NULL) {
free(index);
return NULL;
}
index->gzip = 8;
index->have = 0;
}
/* if list is full, make it bigger */
else if (index->have == index->gzip) {
index->gzip <<= 1;
next = realloc(index->list, sizeof(struct point) * index->gzip);
if (next == NULL) {
deflate_index_free(index);
return NULL;
}
index->list = next;
}
/* fill in entry and increment how many we have */
next = (struct point *)(index->list) + index->have;
next->bits = bits;
next->in = in;
next->out = out;
if (left)
memcpy(next->window, window + WINSIZE - left, left);
if (left < WINSIZE)
memcpy(next->window + left, window, WINSIZE - left);
index->have++;
/* return list, possibly reallocated */
return index;
}
/* See comments in zran.h. */
int deflate_index_build(FILE *in, off_t span, struct deflate_index **built)
{
int ret;
int gzip = 0; /* true if reading a gzip file */
off_t totin, totout; /* our own total counters to avoid 4GB limit */
off_t last; /* totout value of last access point */
struct deflate_index *index; /* access points being generated */
z_stream strm;
unsigned char input[CHUNK];
unsigned char window[WINSIZE];
/* initialize inflate */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
ret = inflateInit2(&strm, 47); /* automatic zlib or gzip decoding */
if (ret != Z_OK)
return ret;
/* inflate the input, maintain a sliding window, and build an index -- this
also validates the integrity of the compressed data using the check
information in the gzip or zlib stream */
totin = totout = last = 0;
index = NULL; /* will be allocated by first addpoint() */
strm.avail_out = 0;
do {
/* get some compressed data from input file */
strm.avail_in = fread(input, 1, CHUNK, in);
if (ferror(in)) {
ret = Z_ERRNO;
goto deflate_index_build_error;
}
if (strm.avail_in == 0) {
ret = Z_DATA_ERROR;
goto deflate_index_build_error;
}
strm.next_in = input;
/* check for a gzip stream */
if (totin == 0 && strm.avail_in >= 3 &&
input[0] == 31 && input[1] == 139 && input[2] == 8)
gzip = 1;
/* process all of that, or until end of stream */
do {
/* reset sliding window if necessary */
if (strm.avail_out == 0) {
strm.avail_out = WINSIZE;
strm.next_out = window;
}
/* inflate until out of input, output, or at end of block --
update the total input and output counters */
totin += strm.avail_in;
totout += strm.avail_out;
ret = inflate(&strm, Z_BLOCK); /* return at end of block */
totin -= strm.avail_in;
totout -= strm.avail_out;
if (ret == Z_NEED_DICT)
ret = Z_DATA_ERROR;
if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
goto deflate_index_build_error;
if (ret == Z_STREAM_END) {
if (gzip &&
(strm.avail_in || ungetc(getc(in), in) != EOF)) {
ret = inflateReset(&strm);
if (ret != Z_OK)
goto deflate_index_build_error;
continue;
}
break;
}
/* if at end of block, consider adding an index entry (note that if
data_type indicates an end-of-block, then all of the
uncompressed data from that block has been delivered, and none
of the compressed data after that block has been consumed,
except for up to seven bits) -- the totout == 0 provides an
entry point after the zlib or gzip header, and assures that the
index always has at least one access point; we avoid creating an
access point after the last block by checking bit 6 of data_type
*/
if ((strm.data_type & 128) && !(strm.data_type & 64) &&
(totout == 0 || totout - last > span)) {
index = addpoint(index, strm.data_type & 7, totin,
totout, strm.avail_out, window);
if (index == NULL) {
ret = Z_MEM_ERROR;
goto deflate_index_build_error;
}
last = totout;
}
} while (strm.avail_in != 0);
} while (ret != Z_STREAM_END);
/* clean up and return index (release unused entries in list) */
(void)inflateEnd(&strm);
index->list = realloc(index->list, sizeof(struct point) * index->have);
index->gzip = gzip;
index->length = totout;
*built = index;
return index->have;
/* return error */
deflate_index_build_error:
(void)inflateEnd(&strm);
deflate_index_free(index);
return ret;
}
/* See comments in zran.h. */
int deflate_index_extract(FILE *in, struct deflate_index *index, off_t offset,
unsigned char *buf, int len)
{
int ret, skip;
z_stream strm;
struct point *here;
unsigned char input[CHUNK];
unsigned char discard[WINSIZE];
/* proceed only if something reasonable to do */
if (len < 0)
return 0;
/* find where in stream to start */
here = index->list;
ret = index->have;
while (--ret && here[1].out <= offset)
here++;
/* initialize file and inflate state to start there */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
ret = inflateInit2(&strm, -15); /* raw inflate */
if (ret != Z_OK)
return ret;
ret = fseeko(in, here->in - (here->bits ? 1 : 0), SEEK_SET);
if (ret == -1)
goto deflate_index_extract_ret;
if (here->bits) {
ret = getc(in);
if (ret == -1) {
ret = ferror(in) ? Z_ERRNO : Z_DATA_ERROR;
goto deflate_index_extract_ret;
}
(void)inflatePrime(&strm, here->bits, ret >> (8 - here->bits));
}
(void)inflateSetDictionary(&strm, here->window, WINSIZE);
/* skip uncompressed bytes until offset reached, then satisfy request */
offset -= here->out;
strm.avail_in = 0;
skip = 1; /* while skipping to offset */
do {
/* define where to put uncompressed data, and how much */
if (offset > WINSIZE) { /* skip WINSIZE bytes */
strm.avail_out = WINSIZE;
strm.next_out = discard;
offset -= WINSIZE;
}
else if (offset > 0) { /* last skip */
strm.avail_out = (unsigned)offset;
strm.next_out = discard;
offset = 0;
}
else if (skip) { /* at offset now */
strm.avail_out = len;
strm.next_out = buf;
skip = 0; /* only do this once */
}
/* uncompress until avail_out filled, or end of stream */
do {
if (strm.avail_in == 0) {
strm.avail_in = fread(input, 1, CHUNK, in);
if (ferror(in)) {
ret = Z_ERRNO;
goto deflate_index_extract_ret;
}
if (strm.avail_in == 0) {
ret = Z_DATA_ERROR;
goto deflate_index_extract_ret;
}
strm.next_in = input;
}
ret = inflate(&strm, Z_NO_FLUSH); /* normal inflate */
if (ret == Z_NEED_DICT)
ret = Z_DATA_ERROR;
if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
goto deflate_index_extract_ret;
if (ret == Z_STREAM_END) {
/* the raw deflate stream has ended */
if (index->gzip == 0)
/* this is a zlib stream that has ended -- done */
break;
/* near the end of a gzip member, which might be followed by
another gzip member -- skip the gzip trailer and see if
there is more input after it */
if (strm.avail_in < 8) {
fseeko(in, 8 - strm.avail_in, SEEK_CUR);
strm.avail_in = 0;
}
else {
strm.avail_in -= 8;
strm.next_in += 8;
}
if (strm.avail_in == 0 && ungetc(getc(in), in) == EOF)
/* the input ended after the gzip trailer -- done */
break;
/* there is more input, so another gzip member should follow --
validate and skip the gzip header */
ret = inflateReset2(&strm, 31);
if (ret != Z_OK)
goto deflate_index_extract_ret;
do {
if (strm.avail_in == 0) {
strm.avail_in = fread(input, 1, CHUNK, in);
if (ferror(in)) {
ret = Z_ERRNO;
goto deflate_index_extract_ret;
}
if (strm.avail_in == 0) {
ret = Z_DATA_ERROR;
goto deflate_index_extract_ret;
}
strm.next_in = input;
}
ret = inflate(&strm, Z_BLOCK);
if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
goto deflate_index_extract_ret;
} while ((strm.data_type & 128) == 0);
/* set up to continue decompression of the raw deflate stream
that follows the gzip header */
ret = inflateReset2(&strm, -15);
if (ret != Z_OK)
goto deflate_index_extract_ret;
}
/* continue to process the available input before reading more */
} while (strm.avail_out != 0);
if (ret == Z_STREAM_END)
/* reached the end of the compressed data -- return the data that
was available, possibly less than requested */
break;
/* do until offset reached and requested data read */
} while (skip);
/* compute the number of uncompressed bytes read after the offset */
ret = skip ? 0 : len - strm.avail_out;
/* clean up and return the bytes read, or the negative error */
deflate_index_extract_ret:
(void)inflateEnd(&strm);
return ret;
}
#ifdef TEST
#define SPAN 1048576L /* desired distance between access points */
#define LEN 16384 /* number of bytes to extract */
/* Demonstrate the use of deflate_index_build() and deflate_index_extract() by
processing the file provided on the command line, and extracting LEN bytes
from 2/3rds of the way through the uncompressed output, writing that to
stdout. An offset can be provided as the second argument, in which case the
data is extracted from there instead. */
int main(int argc, char **argv)
{
int len;
off_t offset = -1;
FILE *in;
struct deflate_index *index = NULL;
unsigned char buf[LEN];
/* open input file */
if (argc < 2 || argc > 3) {
fprintf(stderr, "usage: zran file.gz [offset]\n");
return 1;
}
in = fopen(argv[1], "rb");
if (in == NULL) {
fprintf(stderr, "zran: could not open %s for reading\n", argv[1]);
return 1;
}
/* get optional offset */
if (argc == 3) {
char *end;
offset = strtoll(argv[2], &end, 10);
if (*end || offset < 0) {
fprintf(stderr, "zran: %s is not a valid offset\n", argv[2]);
return 1;
}
}
/* build index */
len = deflate_index_build(in, SPAN, &index);
if (len < 0) {
fclose(in);
switch (len) {
case Z_MEM_ERROR:
fprintf(stderr, "zran: out of memory\n");
break;
case Z_DATA_ERROR:
fprintf(stderr, "zran: compressed data error in %s\n", argv[1]);
break;
case Z_ERRNO:
fprintf(stderr, "zran: read error on %s\n", argv[1]);
break;
default:
fprintf(stderr, "zran: error %d while building index\n", len);
}
return 1;
}
fprintf(stderr, "zran: built index with %d access points\n", len);
/* use index by reading some bytes from an arbitrary offset */
if (offset == -1)
offset = (index->length << 1) / 3;
len = deflate_index_extract(in, index, offset, buf, LEN);
if (len < 0)
fprintf(stderr, "zran: extraction failed: %s error\n",
len == Z_MEM_ERROR ? "out of memory" : "input corrupted");
else {
fwrite(buf, 1, len, stdout);
fprintf(stderr, "zran: extracted %d bytes at %llu\n", len, offset);
}
/* clean up and exit */
deflate_index_free(index);
fclose(in);
return 0;
}
#endif
-40
View File
@@ -1,40 +0,0 @@
/* zran.h -- example of zlib/gzip stream indexing and random access
* Copyright (C) 2005, 2012, 2018 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
* Version 1.2 14 Oct 2018 Mark Adler */
#include <stdio.h>
#include "zlib.h"
/* Access point list. */
struct deflate_index {
int have; /* number of list entries */
int gzip; /* 1 if the index is of a gzip file, 0 if it is of a
zlib stream */
off_t length; /* total length of uncompressed data */
void *list; /* allocated list of entries */
};
/* Make one entire pass through a zlib or gzip compressed stream and build an
index, with access points about every span bytes of uncompressed output.
gzip files with multiple members are indexed in their entirety. span should
be chosen to balance the speed of random access against the memory
requirements of the list, about 32K bytes per access point. The return value
is the number of access points on success (>= 1), Z_MEM_ERROR for out of
memory, Z_DATA_ERROR for an error in the input file, or Z_ERRNO for a file
read error. On success, *built points to the resulting index. */
int deflate_index_build(FILE *in, off_t span, struct deflate_index **built);
/* Deallocate an index built by deflate_index_build() */
void deflate_index_free(struct deflate_index *index);
/* Use the index to read len bytes from offset into buf. Return bytes read or
negative for error (Z_DATA_ERROR or Z_MEM_ERROR). If data is requested past
the end of the uncompressed data, then deflate_index_extract() will return a
value less than len, indicating how much was actually read into buf. This
function should not return a data error unless the file was modified since
the index was generated, since deflate_index_build() validated all of the
input. deflate_index_extract() will return Z_ERRNO if there is an error on
reading or seeking the input file. */
int deflate_index_extract(FILE *in, struct deflate_index *index, off_t offset,
unsigned char *buf, int len);
Binary file not shown.
-152
View File
@@ -1,152 +0,0 @@
#!/usr/bin/perl
# Transform K&R C function definitions into ANSI equivalent.
#
# Author: Paul Marquess
# Version: 1.0
# Date: 3 October 2006
# TODO
#
# Asumes no function pointer parameters. unless they are typedefed.
# Assumes no literal strings that look like function definitions
# Assumes functions start at the beginning of a line
use strict;
use warnings;
local $/;
$_ = <>;
my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments
my $d1 = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ;
my $decl = qr{ $sp (?: \w+ $sp )+ $d1 }xo ;
my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ;
while (s/^
( # Start $1
( # Start $2
.*? # Minimal eat content
( ^ \w [\w\s\*]+ ) # $3 -- function name
\s* # optional whitespace
) # $2 - Matched up to before parameter list
\( \s* # Literal "(" + optional whitespace
( [^\)]+ ) # $4 - one or more anythings except ")"
\s* \) # optional whitespace surrounding a Literal ")"
( (?: $dList )+ ) # $5
$sp ^ { # literal "{" at start of line
) # Remember to $1
//xsom
)
{
my $all = $1 ;
my $prefix = $2;
my $param_list = $4 ;
my $params = $5;
StripComments($params);
StripComments($param_list);
$param_list =~ s/^\s+//;
$param_list =~ s/\s+$//;
my $i = 0 ;
my %pList = map { $_ => $i++ }
split /\s*,\s*/, $param_list;
my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ;
my @params = split /\s*;\s*/, $params;
my @outParams = ();
foreach my $p (@params)
{
if ($p =~ /,/)
{
my @bits = split /\s*,\s*/, $p;
my $first = shift @bits;
$first =~ s/^\s*//;
push @outParams, $first;
$first =~ /^(\w+\s*)/;
my $type = $1 ;
push @outParams, map { $type . $_ } @bits;
}
else
{
$p =~ s/^\s+//;
push @outParams, $p;
}
}
my %tmp = map { /$pMatch/; $_ => $pList{$1} }
@outParams ;
@outParams = map { " $_" }
sort { $tmp{$a} <=> $tmp{$b} }
@outParams ;
print $prefix ;
print "(\n" . join(",\n", @outParams) . ")\n";
print "{" ;
}
# Output any trailing code.
print ;
exit 0;
sub StripComments
{
no warnings;
# Strip C & C++ coments
# From the perlfaq
$_[0] =~
s{
/\* ## Start of /* ... */ comment
[^*]*\*+ ## Non-* followed by 1-or-more *'s
(
[^/*][^*]*\*+
)* ## 0-or-more things which don't start with /
## but do end with '*'
/ ## End of /* ... */ comment
| ## OR C++ Comment
// ## Start of C++ comment //
[^\n]* ## followed by 0-or-more non end of line characters
| ## OR various things which aren't comments:
(
" ## Start of " ... " string
(
\\. ## Escaped char
| ## OR
[^"\\] ## Non "\
)*
" ## End of " ... " string
| ## OR
' ## Start of ' ... ' string
(
\\. ## Escaped char
| ## OR
[^'\\] ## Non '\
)*
' ## End of ' ... ' string
| ## OR
. ## Anything other char
[^/"'\\]* ## Chars which doesn't start a comment, string or escape
)
}{$2}gxs;
}
@@ -1,12 +1,11 @@
cmake_minimum_required(VERSION 2.4.4)
cmake_minimum_required(VERSION 2.4.4...3.15.0)
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
project(zlib C)
set(VERSION "1.2.12")
set(VERSION "1.3.1")
option(ASM686 "Enable building i686 assembly implementation")
option(AMD64 "Enable building amd64 assembly implementation")
option(ZLIB_BUILD_EXAMPLES "Enable Zlib Examples" ON)
set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
@@ -129,39 +128,6 @@ if(NOT MINGW)
)
endif()
if(CMAKE_COMPILER_IS_GNUCC)
if(ASM686)
set(ZLIB_ASMS contrib/asm686/match.S)
elseif (AMD64)
set(ZLIB_ASMS contrib/amd64/amd64-match.S)
endif ()
if(ZLIB_ASMS)
add_definitions(-DASMV)
set_source_files_properties(${ZLIB_ASMS} PROPERTIES LANGUAGE C COMPILE_FLAGS -DNO_UNDERLINE)
endif()
endif()
if(MSVC)
if(ASM686)
ENABLE_LANGUAGE(ASM_MASM)
set(ZLIB_ASMS
contrib/masmx86/inffas32.asm
contrib/masmx86/match686.asm
)
elseif (AMD64)
ENABLE_LANGUAGE(ASM_MASM)
set(ZLIB_ASMS
contrib/masmx64/gvmat64.asm
contrib/masmx64/inffasx64.asm
)
endif()
if(ZLIB_ASMS)
add_definitions(-DASMV -DASMINF)
endif()
endif()
# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
@@ -183,14 +149,12 @@ if(MINGW)
set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
endif(MINGW)
add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlib PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlibstatic PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
set_target_properties(zlib PROPERTIES SOVERSION 1)
target_include_directories(zlib PUBLIC .)
target_include_directories(zlib PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
target_include_directories(zlibstatic PUBLIC .)
target_include_directories(zlibstatic PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
if(NOT CYGWIN)
# This property causes shared libraries on Linux to have the full version
@@ -206,7 +170,7 @@ endif()
if(UNIX)
# On unix-like platforms the library is almost always called libz
set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
if(NOT APPLE)
if(NOT APPLE AND NOT(CMAKE_SYSTEM_NAME STREQUAL AIX))
set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
endif()
elseif(BUILD_SHARED_LIBS AND WIN32)
@@ -233,23 +197,22 @@ endif()
#============================================================================
# Example binaries
#============================================================================
if(ZLIB_BUILD_EXAMPLES)
add_executable(example test/example.c)
target_link_libraries(example zlib)
add_test(example example)
return()
add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
add_executable(example test/example.c)
target_link_libraries(example zlib)
add_test(example example)
if(HAVE_OFF64_T)
add_executable(example64 test/example.c)
target_link_libraries(example64 zlib)
set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
add_test(example64 example64)
add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
if(HAVE_OFF64_T)
add_executable(example64 test/example.c)
target_link_libraries(example64 zlib)
set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
add_test(example64 example64)
add_executable(minigzip64 test/minigzip.c)
target_link_libraries(minigzip64 zlib)
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
add_executable(minigzip64 test/minigzip.c)
target_link_libraries(minigzip64 zlib)
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
endif()
endif()
@@ -1,6 +1,46 @@
ChangeLog file for zlib
Changes in 1.3.1 (22 Jan 2024)
- Reject overflows of zip header fields in minizip
- Fix bug in inflateSync() for data held in bit buffer
- Add LIT_MEM define to use more memory for a small deflate speedup
- Fix decision on the emission of Zip64 end records in minizip
- Add bounds checking to ERR_MSG() macro, used by zError()
- Neutralize zip file traversal attacks in miniunz
- Fix a bug in ZLIB_DEBUG compiles in check_match()
- Various portability and appearance improvements
Changes in 1.3 (18 Aug 2023)
- Remove K&R function definitions and zlib2ansi
- Fix bug in deflateBound() for level 0 and memLevel 9
- Fix bug when gzungetc() is used immediately after gzopen()
- Fix bug when using gzflush() with a very small buffer
- Fix crash when gzsetparams() attempted for transparent write
- Fix test/example.c to work with FORCE_STORED
- Rewrite of zran in examples (see zran.c version history)
- Fix minizip to allow it to open an empty zip file
- Fix reading disk number start on zip64 files in minizip
- Fix logic error in minizip argument processing
- Add minizip testing to Makefile
- Read multiple bytes instead of byte-by-byte in minizip unzip.c
- Add memory sanitizer to configure (--memory)
- Various portability improvements
- Various documentation improvements
- Various spelling and typo corrections
Changes in 1.2.13 (13 Oct 2022)
- Fix configure issue that discarded provided CC definition
- Correct incorrect inputs provided to the CRC functions
- Repair prototypes and exporting of new CRC functions
- Fix inflateBack to detect invalid input with distances too far
- Have infback() deliver all of the available output up to any error
- Fix a bug when getting a gzip header extra field with inflate()
- Fix bug in block type selection when Z_FIXED used
- Tighten deflateBound bounds
- Remove deleted assembler code references
- Various portability and appearance improvements
Changes in 1.2.12 (27 Mar 2022)
- Cygwin does not have _wopen(), so do not create gzopen_w() there
- Permit a deflateParams() parameter change as soon as possible
@@ -159,7 +199,7 @@ Changes in 1.2.7.1 (24 Mar 2013)
- Fix types in contrib/minizip to match result of get_crc_table()
- Simplify contrib/vstudio/vc10 with 'd' suffix
- Add TOP support to win32/Makefile.msc
- Suport i686 and amd64 assembler builds in CMakeLists.txt
- Support i686 and amd64 assembler builds in CMakeLists.txt
- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
- Add vc11 and vc12 build files to contrib/vstudio
- Add gzvprintf() as an undocumented function in zlib
@@ -359,14 +399,14 @@ Changes in 1.2.5.1 (10 Sep 2011)
- Use u4 type for crc_table to avoid conversion warnings
- Apply casts in zlib.h to avoid conversion warnings
- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
- Improve inflateSync() documentation to note indeterminancy
- Improve inflateSync() documentation to note indeterminacy
- Add deflatePending() function to return the amount of pending output
- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
- Add a check in configure for stdarg.h, use for gzprintf()
- Check that pointers fit in ints when gzprint() compiled old style
- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
- Add debug records in assmebler code [Londer]
- Add debug records in assembler code [Londer]
- Update RFC references to use http://tools.ietf.org/html/... [Li]
- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
@@ -1033,7 +1073,7 @@ Changes in 1.2.0.1 (17 March 2003)
- Include additional header file on VMS for off_t typedef
- Try to use _vsnprintf where it supplants vsprintf [Vollant]
- Add some casts in inffast.c
- Enchance comments in zlib.h on what happens if gzprintf() tries to
- Enhance comments in zlib.h on what happens if gzprintf() tries to
write more than 4095 bytes before compression
- Remove unused state from inflateBackEnd()
- Remove exit(0) from minigzip.c, example.c
@@ -1211,7 +1251,7 @@ Changes in 1.0.9 (17 Feb 1998)
- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
the declaration of FAR (Gilles VOllant)
the declaration of FAR (Gilles Vollant)
- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
- read_buf buf parameter of type Bytef* instead of charf*
- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
@@ -1433,7 +1473,7 @@ Changes in 0.99 (27 Jan 96)
- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
- in fcalloc, normalize pointer if size > 65520 bytes
- don't use special fcalloc for 32 bit Borland C++
- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc.
- use Z_BINARY instead of BINARY
- document that gzclose after gzdopen will close the file
- allow "a" as mode in gzopen
@@ -1567,7 +1607,7 @@ Changes in 0.4:
- renamed deflateOptions as deflateInit2, call one or the other but not both
- added the method parameter for deflateInit2
- added inflateInit2
- simplied considerably deflateInit and inflateInit by not supporting
- simplified considerably deflateInit and inflateInit by not supporting
user-provided history buffer. This is supported only in deflateInit2
and inflateInit2
+2 -3
View File
@@ -4,7 +4,7 @@
If your question is not there, please check the zlib home page
http://zlib.net/ which may have more recent information.
The lastest zlib FAQ is at http://zlib.net/zlib_faq.html
The latest zlib FAQ is at http://zlib.net/zlib_faq.html
1. Is zlib Y2K-compliant?
@@ -14,8 +14,7 @@ The lastest zlib FAQ is at http://zlib.net/zlib_faq.html
2. Where can I get a Windows DLL version?
The zlib sources can be compiled without change to produce a DLL. See the
file win32/DLL_FAQ.txt in the zlib distribution. Pointers to the
precompiled DLL are found in the zlib web site at http://zlib.net/ .
file win32/DLL_FAQ.txt in the zlib distribution.
3. Where can I get a Visual Basic interface to zlib?
+22
View File
@@ -0,0 +1,22 @@
Copyright notice:
(C) 1995-2022 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 Mark Adler
jloup@gzip.org madler@alumni.caltech.edu
@@ -1,5 +1,5 @@
# Makefile for zlib
# Copyright (C) 1995-2017 Jean-loup Gailly, Mark Adler
# Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
# For conditions of distribution and use, see copyright notice in zlib.h
# To compile and test, type:
@@ -7,10 +7,6 @@
# Normally configure builds both a static and a shared library.
# If you want to build just a static library, use: ./configure --static
# To use the asm code, type:
# cp contrib/asm?86/match.S ./match.S
# make LOC=-DASMV OBJA=match.o
# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
# make install
# To install in $HOME instead of /usr/local, use:
@@ -26,13 +22,13 @@ CFLAGS=-O
SFLAGS=-O
LDFLAGS=
TEST_LDFLAGS=-L. libz.a
TEST_LIBS=-L. libz.a
LDSHARED=$(CC)
CPP=$(CC) -E
STATICLIB=libz.a
SHAREDLIB=libz.so
SHAREDLIBV=libz.so.1.2.12
SHAREDLIBV=libz.so.1.3.1
SHAREDLIBM=libz.so.1
LIBS=$(STATICLIB) $(SHAREDLIBV)
@@ -87,7 +83,7 @@ test: all teststatic testshared
teststatic: static
@TMPST=tmpst_$$; \
if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
if echo hello world | ${QEMU_RUN} ./minigzip | ${QEMU_RUN} ./minigzip -d && ${QEMU_RUN} ./example $$TMPST ; then \
echo ' *** zlib test OK ***'; \
else \
echo ' *** zlib test FAILED ***'; false; \
@@ -100,7 +96,7 @@ testshared: shared
DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
TMPSH=tmpsh_$$; \
if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
if echo hello world | ${QEMU_RUN} ./minigzipsh | ${QEMU_RUN} ./minigzipsh -d && ${QEMU_RUN} ./examplesh $$TMPSH; then \
echo ' *** zlib shared test OK ***'; \
else \
echo ' *** zlib shared test FAILED ***'; false; \
@@ -109,7 +105,7 @@ testshared: shared
test64: all64
@TMP64=tmp64_$$; \
if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
if echo hello world | ${QEMU_RUN} ./minigzip64 | ${QEMU_RUN} ./minigzip64 -d && ${QEMU_RUN} ./example64 $$TMP64; then \
echo ' *** zlib 64-bit test OK ***'; \
else \
echo ' *** zlib 64-bit test FAILED ***'; false; \
@@ -124,7 +120,7 @@ infcover: infcover.o libz.a
cover: infcover
rm -f *.gcda
./infcover
${QEMU_RUN} ./infcover
gcov inf*.c
libz.a: $(OBJS)
@@ -286,22 +282,22 @@ placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
-@rmdir objs
example$(EXE): example.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ example.o $(TEST_LIBS)
minigzip$(EXE): minigzip.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ minigzip.o $(TEST_LIBS)
examplesh$(EXE): example.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS) -L. $(SHAREDLIBV)
minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS) -L. $(SHAREDLIBV)
example64$(EXE): example64.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ example64.o $(TEST_LIBS)
minigzip64$(EXE): minigzip64.o $(STATICLIB)
$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ minigzip64.o $(TEST_LIBS)
install-libs: $(LIBS)
-@if [ ! -d $(DESTDIR)$(exec_prefix) ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
@@ -363,8 +359,14 @@ zconf.h.cmakein: $(SRCDIR)zconf.h.in
zconf: $(SRCDIR)zconf.h.in
cp -p $(SRCDIR)zconf.h.in zconf.h
minizip-test: static
cd contrib/minizip && { CC="$(CC)" CFLAGS="$(CFLAGS)" $(MAKE) test ; cd ../.. ; }
minizip-clean:
cd contrib/minizip && { $(MAKE) clean ; cd ../.. ; }
mostlyclean: clean
clean:
clean: minizip-clean
rm -f *.o *.lo *~ \
example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
example64$(EXE) minigzip64$(EXE) \
@@ -1,6 +1,6 @@
ZLIB DATA COMPRESSION LIBRARY
zlib 1.2.12 is a general purpose data compression library. All the code is
zlib 1.3.1 is a general purpose data compression library. All the code is
thread safe. The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files
http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
@@ -29,18 +29,17 @@ PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997
issue of Dr. Dobb's Journal; a copy of the article is available at
http://marknelson.us/1997/01/01/zlib-engine/ .
https://marknelson.us/posts/1997/01/01/zlib-engine.html .
The changes made in version 1.2.12 are documented in the file ChangeLog.
The changes made in version 1.3.1 are documented in the file ChangeLog.
Unsupported third party contributions are provided in directory contrib/ .
zlib is available in Java using the java.util.zip package, documented at
http://java.sun.com/developer/technicalArticles/Programming/compression/ .
zlib is available in Java using the java.util.zip package. Follow the API
Documentation link at: https://docs.oracle.com/search/?q=java.util.zip .
A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
at CPAN (Comprehensive Perl Archive Network) sites, including
http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
A Perl interface to zlib and bzip2 written by Paul Marquess <pmqs@cpan.org>
can be found at https://github.com/pmqs/IO-Compress .
A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
available in Python 1.5 and later versions, see
@@ -64,7 +63,7 @@ Notes for some targets:
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
when compiled with cc.
- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
- On Digital Unix 4.0D (formerly OSF/1) on AlphaServer, the cc option -std1 is
necessary to get gzprintf working correctly. This is done by configure.
- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
@@ -84,7 +83,7 @@ Acknowledgments:
Copyright notice:
(C) 1995-2022 Jean-loup Gailly and Mark Adler
(C) 1995-2024 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
@@ -7,8 +7,6 @@
#include "zutil.h"
local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
#define BASE 65521U /* largest prime smaller than 65536 */
#define NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
@@ -60,11 +58,7 @@ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
#endif
/* ========================================================================= */
uLong ZEXPORT adler32_z(adler, buf, len)
uLong adler;
const Bytef *buf;
z_size_t len;
{
uLong ZEXPORT adler32_z(uLong adler, const Bytef *buf, z_size_t len) {
unsigned long sum2;
unsigned n;
@@ -131,20 +125,12 @@ uLong ZEXPORT adler32_z(adler, buf, len)
}
/* ========================================================================= */
uLong ZEXPORT adler32(adler, buf, len)
uLong adler;
const Bytef *buf;
uInt len;
{
uLong ZEXPORT adler32(uLong adler, const Bytef *buf, uInt len) {
return adler32_z(adler, buf, len);
}
/* ========================================================================= */
local uLong adler32_combine_(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off64_t len2;
{
local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2) {
unsigned long sum1;
unsigned long sum2;
unsigned rem;
@@ -169,18 +155,10 @@ local uLong adler32_combine_(adler1, adler2, len2)
}
/* ========================================================================= */
uLong ZEXPORT adler32_combine(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off_t len2;
{
uLong ZEXPORT adler32_combine(uLong adler1, uLong adler2, z_off_t len2) {
return adler32_combine_(adler1, adler2, len2);
}
uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
uLong adler1;
uLong adler2;
z_off64_t len2;
{
uLong ZEXPORT adler32_combine64(uLong adler1, uLong adler2, z_off64_t len2) {
return adler32_combine_(adler1, adler2, len2);
}
@@ -19,13 +19,8 @@
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
Z_STREAM_ERROR if the level parameter is invalid.
*/
int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
int level;
{
int ZEXPORT compress2(Bytef *dest, uLongf *destLen, const Bytef *source,
uLong sourceLen, int level) {
z_stream stream;
int err;
const uInt max = (uInt)-1;
@@ -65,12 +60,8 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
/* ===========================================================================
*/
int ZEXPORT compress (dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
uLong sourceLen;
{
int ZEXPORT compress(Bytef *dest, uLongf *destLen, const Bytef *source,
uLong sourceLen) {
return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
}
@@ -78,9 +69,7 @@ int ZEXPORT compress (dest, destLen, source, sourceLen)
If the default memLevel or windowBits for deflateInit() is changed, then
this function needs to be updated.
*/
uLong ZEXPORT compressBound (sourceLen)
uLong sourceLen;
{
uLong ZEXPORT compressBound(uLong sourceLen) {
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
(sourceLen >> 25) + 13;
}
+63 -61
View File
@@ -25,15 +25,18 @@ if test $SRCDIR = "."; then
ZINCOUT="-I."
SRCDIR=""
else
ZINC='-include zconf.h'
ZINC='-I. -include zconf.h'
ZINCOUT='-I. -I$(SRCDIR)'
SRCDIR="$SRCDIR/"
fi
# set command prefix for cross-compilation
if [ -n "${CHOST}" ]; then
uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
uname=${CHOST}
mname=${CHOST}
CROSS_PREFIX="${CHOST}-"
else
mname=`(uname -a || echo unknown) 2>/dev/null`
fi
# destination name for static library
@@ -41,9 +44,8 @@ STATICLIB=libz.a
# extract zlib version numbers from zlib.h
VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h`
VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < ${SRCDIR}zlib.h`
VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
VER3=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\(\\.[0-9]\{1,\}\)\{1,2\}\).*/\1/p'`
VER1=`echo ${VER}|sed -n -e 's/\([0-9]\{1,\}\)\\..*/\1/p'`
# establish commands for library building
if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
@@ -87,7 +89,8 @@ build64=0
gcc=0
warn=0
debug=0
sanitize=0
address=0
memory=0
old_cc="$CC"
old_cflags="$CFLAGS"
OBJC='$(OBJZ) $(OBJG)'
@@ -99,7 +102,7 @@ leave()
if test "$*" != "0"; then
echo "** $0 aborting." | tee -a configure.log
fi
rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
rm -rf $test.[co] $test $test$shared_ext $test.gcno $test.dSYM ./--version
echo -------------------- >> configure.log
echo >> configure.log
echo >> configure.log
@@ -138,7 +141,9 @@ case "$1" in
-c* | --const) zconst=1; shift ;;
-w* | --warn) warn=1; shift ;;
-d* | --debug) debug=1; shift ;;
--sanitize) sanitize=1; shift ;;
--sanitize) address=1; shift ;;
--address) address=1; shift ;;
--memory) memory=1; shift ;;
*)
echo "unknown option: $1" | tee -a configure.log
echo "$0 --help for help" | tee -a configure.log
@@ -174,9 +179,10 @@ if test -z "$CC"; then
else
cc=${CROSS_PREFIX}cc
fi
else
cc=${CC}
fi
cflags=${CFLAGS-"-O3"}
# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
case "$cc" in
*gcc*) gcc=1 ;;
*clang*) gcc=1 ;;
@@ -202,13 +208,16 @@ if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
fi
if test "$warn" -eq 1; then
if test "$zconst" -eq 1; then
CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -DZLIB_CONST"
else
CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
CFLAGS="${CFLAGS} -Wall -Wextra"
fi
fi
if test $sanitize -eq 1; then
CFLAGS="${CFLAGS} -fsanitize=address"
if test $address -eq 1; then
CFLAGS="${CFLAGS} -g -fsanitize=address -fno-omit-frame-pointer"
fi
if test $memory -eq 1; then
CFLAGS="${CFLAGS} -g -fsanitize=memory -fno-omit-frame-pointer"
fi
if test $debug -eq 1; then
CFLAGS="${CFLAGS} -DZLIB_DEBUG"
@@ -218,47 +227,54 @@ if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
uname=`(uname -s || echo unknown) 2>/dev/null`
fi
case "$uname" in
Linux* | linux* | GNU | GNU/* | solaris*)
Linux* | linux* | *-linux* | GNU | GNU/* | solaris*)
case "$mname" in
*sparc*)
LDFLAGS="${LDFLAGS} -Wl,--no-warn-rwx-segments" ;;
esac
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
*BSD | *bsd* | DragonFly)
LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
LDCONFIG="ldconfig -m" ;;
CYGWIN* | Cygwin* | cygwin* | OS/2*)
CYGWIN* | Cygwin* | cygwin* | *-cygwin* | OS/2*)
EXE='.exe' ;;
MINGW* | mingw*)
# temporary bypass
MINGW* | mingw* | *-mingw*)
rm -f $test.[co] $test $test$shared_ext
echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
leave 1
echo "If this doesn't work for you, try win32/Makefile.gcc." | tee -a configure.log
LDSHARED=${LDSHARED-"$cc -shared"}
LDSHAREDLIBC=""
EXE='.exe' ;;
QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
# (alain.bonnefoy@icbt.com)
LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
# (alain.bonnefoy@icbt.com)
LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
HP-UX*)
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
case `(uname -m || echo unknown) 2>/dev/null` in
ia64)
shared_ext='.so'
SHAREDLIB='libz.so' ;;
*)
shared_ext='.sl'
SHAREDLIB='libz.sl' ;;
esac ;;
Darwin* | darwin*)
shared_ext='.dylib'
SHAREDLIB=libz$shared_ext
SHAREDLIBV=libz.$VER$shared_ext
SHAREDLIBM=libz.$VER1$shared_ext
LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
if libtool -V 2>&1 | grep Apple > /dev/null; then
AR="libtool"
else
AR="/usr/bin/libtool"
fi
ARFLAGS="-o" ;;
*) LDSHARED=${LDSHARED-"$cc -shared"} ;;
LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
case `(uname -m || echo unknown) 2>/dev/null` in
ia64)
shared_ext='.so'
SHAREDLIB='libz.so' ;;
*)
shared_ext='.sl'
SHAREDLIB='libz.sl' ;;
esac ;;
AIX*)
LDFLAGS="${LDFLAGS} -Wl,-brtl" ;;
Darwin* | darwin* | *-darwin*)
shared_ext='.dylib'
SHAREDLIB=libz$shared_ext
SHAREDLIBV=libz.$VER$shared_ext
SHAREDLIBM=libz.$VER1$shared_ext
LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
if "${CROSS_PREFIX}libtool" -V 2>&1 | grep Apple > /dev/null; then
AR="${CROSS_PREFIX}libtool"
elif libtool -V 2>&1 | grep Apple > /dev/null; then
AR="libtool"
else
AR="/usr/bin/libtool"
fi
ARFLAGS="-o" ;;
*)
LDSHARED=${LDSHARED-"$cc -shared"} ;;
esac
else
# find system name and corresponding cc options
@@ -426,7 +442,7 @@ EOF
if test $shared -eq 1; then
echo Checking for shared library support... | tee -a configure.log
# we must test in two steps (cc then ld), required at least on SunOS 4.x
if try $CC -w -c $SFLAGS $test.c &&
if try $CC -c $SFLAGS $test.c &&
try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
elif test -z "$old_cc" -a -z "$old_cflags"; then
@@ -450,20 +466,6 @@ else
TEST="all teststatic testshared"
fi
# check for underscores in external names for use by assembler code
CPP=${CPP-"$CC -E"}
case $CFLAGS in
*ASMV*)
echo >> configure.log
show "$NM $test.o | grep _hello"
if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then
CPP="$CPP -DNO_UNDERLINE"
echo Checking for underline in external names... No. | tee -a configure.log
else
echo Checking for underline in external names... Yes. | tee -a configure.log
fi ;;
esac
echo >> configure.log
# check for size_t
@@ -865,7 +867,7 @@ echo prefix = $prefix >> configure.log
echo sharedlibdir = $sharedlibdir >> configure.log
echo uname = $uname >> configure.log
# udpate Makefile with the configure results
# update Makefile with the configure results
sed < ${SRCDIR}Makefile.in "
/^CC *=/s#=.*#=$CC#
/^CFLAGS *=/s#=.*#=$CFLAGS#
@@ -1,4 +1,4 @@
All files under this contrib directory are UNSUPPORTED. There were
All files under this contrib directory are UNSUPPORTED. They were
provided by users of zlib and were not tested by the authors of zlib.
Use at your own risk. Please contact the authors of the contributions
for help about these, not the zlib authors. Thanks.
@@ -8,8 +8,8 @@ It provides Ada-style access to the ZLib C library.
Here are the main changes since ZLib.Ada 1.2:
- Attension: ZLib.Read generic routine have a initialization requirement
for Read_Last parameter now. It is a bit incompartible with previous version,
- Attention: ZLib.Read generic routine have a initialization requirement
for Read_Last parameter now. It is a bit incompatible with previous version,
but extends functionality, we could use new parameters Allow_Read_Some and
Flush now.
@@ -65,12 +65,12 @@ procedure Test is
Time_Stamp : Ada.Calendar.Time;
procedure Generate_File;
-- Generate file of spetsified size with some random data.
-- Generate file of specified size with some random data.
-- The random data is repeatable, for the good compression.
procedure Compare_Streams
(Left, Right : in out Root_Stream_Type'Class);
-- The procedure compearing data in 2 streams.
-- The procedure comparing data in 2 streams.
-- It is for compare data before and after compression/decompression.
procedure Compare_Files (Left, Right : String);
@@ -62,7 +62,7 @@ package ZLib.Streams is
:= Default_Buffer_Size;
Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset
:= Default_Buffer_Size);
-- Create the Comression/Decompression stream.
-- Create the Compression/Decompression stream.
-- If mode is In_Stream then Write operation is disabled.
-- If mode is Out_Stream then Read operation is disabled.
@@ -204,7 +204,7 @@ package body ZLib is
end if;
-- We allow ZLib to make header only in case of default header type.
-- Otherwise we would either do header by ourselfs, or do not do
-- Otherwise we would either do header by ourselves, or do not do
-- header at all.
if Header = None or else Header = GZip then
@@ -114,7 +114,7 @@ package ZLib is
-- Compression strategy constants --
------------------------------------
-- RLE stategy could be used only in version 1.2.0 and later.
-- RLE strategy could be used only in version 1.2.0 and later.
Filtered : constant Strategy_Type;
Huffman_Only : constant Strategy_Type;
@@ -152,7 +152,7 @@ procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
const OutBuf: Pointer; BufSize: Integer);
const
zlib_version = '1.2.12';
zlib_version = '1.3.1';
type
EZlibError = class(Exception);
@@ -1,33 +1,33 @@
<?xml version="1.0" encoding="utf-8" ?>
<project name="DotZLib" default="build" basedir="./DotZLib">
<description>A .Net wrapper library around ZLib1.dll</description>
<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
<property name="build.root" value="bin" />
<property name="debug" value="true" />
<property name="nunit" value="true" />
<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
<target name="clean" description="Remove all generated files">
<delete dir="${build.root}" failonerror="false" />
</target>
<target name="build" description="compiles the source code">
<mkdir dir="${build.folder}" />
<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
<references basedir="${nunit.location}">
<includes if="${nunit}" name="nunit.framework.dll" />
</references>
<sources>
<includes name="*.cs" />
<excludes name="UnitTests.cs" unless="${nunit}" />
</sources>
<arg value="/d:nunit" if="${nunit}" />
</csc>
</target>
<?xml version="1.0" encoding="utf-8" ?>
<project name="DotZLib" default="build" basedir="./DotZLib">
<description>A .Net wrapper library around ZLib1.dll</description>
<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
<property name="build.root" value="bin" />
<property name="debug" value="true" />
<property name="nunit" value="true" />
<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
<target name="clean" description="Remove all generated files">
<delete dir="${build.root}" failonerror="false" />
</target>
<target name="build" description="compiles the source code">
<mkdir dir="${build.folder}" />
<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
<references basedir="${nunit.location}">
<includes if="${nunit}" name="nunit.framework.dll" />
</references>
<sources>
<includes name="*.cs" />
<excludes name="UnitTests.cs" unless="${nunit}" />
</sources>
<arg value="/d:nunit" if="${nunit}" />
</csc>
</target>
</project>
@@ -1,21 +1,21 @@
Microsoft Visual Studio Solution File, Format Version 8.00
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
ProjectSection(ProjectDependencies) = postProject
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfiguration) = preSolution
Debug = Debug
Release = Release
EndGlobalSection
GlobalSection(ProjectConfiguration) = postSolution
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
EndGlobalSection
GlobalSection(ExtensibilityAddIns) = postSolution
EndGlobalSection
EndGlobal
Microsoft Visual Studio Solution File, Format Version 8.00
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
ProjectSection(ProjectDependencies) = postProject
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfiguration) = preSolution
Debug = Debug
Release = Release
EndGlobalSection
GlobalSection(ProjectConfiguration) = postSolution
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
EndGlobalSection
GlobalSection(ExtensibilityAddIns) = postSolution
EndGlobalSection
EndGlobal
@@ -1,58 +1,58 @@
using System.Reflection;
using System.Runtime.CompilerServices;
//
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
//
[assembly: AssemblyTitle("DotZLib")]
[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("Henrik Ravn")]
[assembly: AssemblyProduct("")]
[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
//
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.*")]
//
// In order to sign your assembly you must specify a key to use. Refer to the
// Microsoft .NET Framework documentation for more information on assembly signing.
//
// Use the attributes below to control which key is used for signing.
//
// Notes:
// (*) If no key is specified, the assembly is not signed.
// (*) KeyName refers to a key that has been installed in the Crypto Service
// Provider (CSP) on your machine. KeyFile refers to a file which contains
// a key.
// (*) If the KeyFile and the KeyName values are both specified, the
// following processing occurs:
// (1) If the KeyName can be found in the CSP, that key is used.
// (2) If the KeyName does not exist and the KeyFile does exist, the key
// in the KeyFile is installed into the CSP and used.
// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
// When specifying the KeyFile, the location of the KeyFile should be
// relative to the project output directory which is
// %Project Directory%\obj\<configuration>. For example, if your KeyFile is
// located in the project directory, you would specify the AssemblyKeyFile
// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
// documentation for more information on this.
//
[assembly: AssemblyDelaySign(false)]
[assembly: AssemblyKeyFile("")]
[assembly: AssemblyKeyName("")]
using System.Reflection;
using System.Runtime.CompilerServices;
//
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
//
[assembly: AssemblyTitle("DotZLib")]
[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("Henrik Ravn")]
[assembly: AssemblyProduct("")]
[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
//
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.*")]
//
// In order to sign your assembly you must specify a key to use. Refer to the
// Microsoft .NET Framework documentation for more information on assembly signing.
//
// Use the attributes below to control which key is used for signing.
//
// Notes:
// (*) If no key is specified, the assembly is not signed.
// (*) KeyName refers to a key that has been installed in the Crypto Service
// Provider (CSP) on your machine. KeyFile refers to a file which contains
// a key.
// (*) If the KeyFile and the KeyName values are both specified, the
// following processing occurs:
// (1) If the KeyName can be found in the CSP, that key is used.
// (2) If the KeyName does not exist and the KeyFile does exist, the key
// in the KeyFile is installed into the CSP and used.
// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
// When specifying the KeyFile, the location of the KeyFile should be
// relative to the project output directory which is
// %Project Directory%\obj\<configuration>. For example, if your KeyFile is
// located in the project directory, you would specify the AssemblyKeyFile
// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
// documentation for more information on this.
//
[assembly: AssemblyDelaySign(false)]
[assembly: AssemblyKeyFile("")]
[assembly: AssemblyKeyName("")]
@@ -1,202 +1,202 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Runtime.InteropServices;
using System.Text;
namespace DotZLib
{
#region ChecksumGeneratorBase
/// <summary>
/// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
/// </summary>
/// <example></example>
public abstract class ChecksumGeneratorBase : ChecksumGenerator
{
/// <summary>
/// The value of the current checksum
/// </summary>
protected uint _current;
/// <summary>
/// Initializes a new instance of the checksum generator base - the current checksum is
/// set to zero
/// </summary>
public ChecksumGeneratorBase()
{
_current = 0;
}
/// <summary>
/// Initializes a new instance of the checksum generator basewith a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public ChecksumGeneratorBase(uint initialValue)
{
_current = initialValue;
}
/// <summary>
/// Resets the current checksum to zero
/// </summary>
public void Reset() { _current = 0; }
/// <summary>
/// Gets the current checksum value
/// </summary>
public uint Value { get { return _current; } }
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
/// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
/// This is therefore the only method a derived class has to implement</remarks>
public abstract void Update(byte[] data, int offset, int count);
/// <summary>
/// Updates the current checksum with an array of bytes.
/// </summary>
/// <param name="data">The data to update the checksum with</param>
public void Update(byte[] data)
{
Update(data, 0, data.Length);
}
/// <summary>
/// Updates the current checksum with the data from a string
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
public void Update(string data)
{
Update(Encoding.UTF8.GetBytes(data));
}
/// <summary>
/// Updates the current checksum with the data from a string, using a specific encoding
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <param name="encoding">The encoding to use</param>
public void Update(string data, Encoding encoding)
{
Update(encoding.GetBytes(data));
}
}
#endregion
#region CRC32
/// <summary>
/// Implements a CRC32 checksum generator
/// </summary>
public sealed class CRC32Checksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint crc32(uint crc, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator
/// </summary>
public CRC32Checksum() : base() {}
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public CRC32Checksum(uint initialValue) : base(initialValue) {}
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
#region Adler
/// <summary>
/// Implements a checksum generator that computes the Adler checksum on data
/// </summary>
public sealed class AdlerChecksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint adler32(uint adler, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the Adler checksum generator
/// </summary>
public AdlerChecksum() : base() {}
/// <summary>
/// Initializes a new instance of the Adler checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public AdlerChecksum(uint initialValue) : base(initialValue) {}
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Runtime.InteropServices;
using System.Text;
namespace DotZLib
{
#region ChecksumGeneratorBase
/// <summary>
/// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
/// </summary>
/// <example></example>
public abstract class ChecksumGeneratorBase : ChecksumGenerator
{
/// <summary>
/// The value of the current checksum
/// </summary>
protected uint _current;
/// <summary>
/// Initializes a new instance of the checksum generator base - the current checksum is
/// set to zero
/// </summary>
public ChecksumGeneratorBase()
{
_current = 0;
}
/// <summary>
/// Initializes a new instance of the checksum generator base with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public ChecksumGeneratorBase(uint initialValue)
{
_current = initialValue;
}
/// <summary>
/// Resets the current checksum to zero
/// </summary>
public void Reset() { _current = 0; }
/// <summary>
/// Gets the current checksum value
/// </summary>
public uint Value { get { return _current; } }
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
/// <remarks>All the other <c>Update</c> methods are implemented in terms of this one.
/// This is therefore the only method a derived class has to implement</remarks>
public abstract void Update(byte[] data, int offset, int count);
/// <summary>
/// Updates the current checksum with an array of bytes.
/// </summary>
/// <param name="data">The data to update the checksum with</param>
public void Update(byte[] data)
{
Update(data, 0, data.Length);
}
/// <summary>
/// Updates the current checksum with the data from a string
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
public void Update(string data)
{
Update(Encoding.UTF8.GetBytes(data));
}
/// <summary>
/// Updates the current checksum with the data from a string, using a specific encoding
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <param name="encoding">The encoding to use</param>
public void Update(string data, Encoding encoding)
{
Update(encoding.GetBytes(data));
}
}
#endregion
#region CRC32
/// <summary>
/// Implements a CRC32 checksum generator
/// </summary>
public sealed class CRC32Checksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint crc32(uint crc, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator
/// </summary>
public CRC32Checksum() : base() {}
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public CRC32Checksum(uint initialValue) : base(initialValue) {}
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
#region Adler
/// <summary>
/// Implements a checksum generator that computes the Adler checksum on data
/// </summary>
public sealed class AdlerChecksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint adler32(uint adler, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the Adler checksum generator
/// </summary>
public AdlerChecksum() : base() {}
/// <summary>
/// Initializes a new instance of the Adler checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public AdlerChecksum(uint initialValue) : base(initialValue) {}
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
}
@@ -1,83 +1,83 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
namespace DotZLib
{
/// <summary>
/// This class implements a circular buffer
/// </summary>
internal class CircularBuffer
{
#region Private data
private int _capacity;
private int _head;
private int _tail;
private int _size;
private byte[] _buffer;
#endregion
public CircularBuffer(int capacity)
{
Debug.Assert( capacity > 0 );
_buffer = new byte[capacity];
_capacity = capacity;
_head = 0;
_tail = 0;
_size = 0;
}
public int Size { get { return _size; } }
public int Put(byte[] source, int offset, int count)
{
Debug.Assert( count > 0 );
int trueCount = Math.Min(count, _capacity - Size);
for (int i = 0; i < trueCount; ++i)
_buffer[(_tail+i) % _capacity] = source[offset+i];
_tail += trueCount;
_tail %= _capacity;
_size += trueCount;
return trueCount;
}
public bool Put(byte b)
{
if (Size == _capacity) // no room
return false;
_buffer[_tail++] = b;
_tail %= _capacity;
++_size;
return true;
}
public int Get(byte[] destination, int offset, int count)
{
int trueCount = Math.Min(count,Size);
for (int i = 0; i < trueCount; ++i)
destination[offset + i] = _buffer[(_head+i) % _capacity];
_head += trueCount;
_head %= _capacity;
_size -= trueCount;
return trueCount;
}
public int Get()
{
if (Size == 0)
return -1;
int result = (int)_buffer[_head++ % _capacity];
--_size;
return result;
}
}
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
namespace DotZLib
{
/// <summary>
/// This class implements a circular buffer
/// </summary>
internal class CircularBuffer
{
#region Private data
private int _capacity;
private int _head;
private int _tail;
private int _size;
private byte[] _buffer;
#endregion
public CircularBuffer(int capacity)
{
Debug.Assert( capacity > 0 );
_buffer = new byte[capacity];
_capacity = capacity;
_head = 0;
_tail = 0;
_size = 0;
}
public int Size { get { return _size; } }
public int Put(byte[] source, int offset, int count)
{
Debug.Assert( count > 0 );
int trueCount = Math.Min(count, _capacity - Size);
for (int i = 0; i < trueCount; ++i)
_buffer[(_tail+i) % _capacity] = source[offset+i];
_tail += trueCount;
_tail %= _capacity;
_size += trueCount;
return trueCount;
}
public bool Put(byte b)
{
if (Size == _capacity) // no room
return false;
_buffer[_tail++] = b;
_tail %= _capacity;
++_size;
return true;
}
public int Get(byte[] destination, int offset, int count)
{
int trueCount = Math.Min(count,Size);
for (int i = 0; i < trueCount; ++i)
destination[offset + i] = _buffer[(_head+i) % _capacity];
_head += trueCount;
_head %= _capacity;
_size -= trueCount;
return trueCount;
}
public int Get()
{
if (Size == 0)
return -1;
int result = (int)_buffer[_head++ % _capacity];
--_size;
return result;
}
}
}
@@ -1,198 +1,198 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements the common functionality needed for all <see cref="Codec"/>s
/// </summary>
public abstract class CodecBase : Codec, IDisposable
{
#region Data members
/// <summary>
/// Instance of the internal zlib buffer structure that is
/// passed to all functions in the zlib dll
/// </summary>
internal ZStream _ztream = new ZStream();
/// <summary>
/// True if the object instance has been disposed, false otherwise
/// </summary>
protected bool _isDisposed = false;
/// <summary>
/// The size of the internal buffers
/// </summary>
protected const int kBufferSize = 16384;
private byte[] _outBuffer = new byte[kBufferSize];
private byte[] _inBuffer = new byte[kBufferSize];
private GCHandle _hInput;
private GCHandle _hOutput;
private uint _checksum = 0;
#endregion
/// <summary>
/// Initializes a new instance of the <c>CodeBase</c> class.
/// </summary>
public CodecBase()
{
try
{
_hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
_hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
}
catch (Exception)
{
CleanUp(false);
throw;
}
}
#region Codec Members
/// <summary>
/// Occurs when more processed data are available.
/// </summary>
public event DataAvailableHandler DataAvailable;
/// <summary>
/// Fires the <see cref="DataAvailable"/> event
/// </summary>
protected void OnDataAvailable()
{
if (_ztream.total_out > 0)
{
if (DataAvailable != null)
DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
resetOutput();
}
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public void Add(byte[] data)
{
Add(data,0,data.Length);
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Add(byte[] data, int offset, int count);
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Finish();
/// <summary>
/// Gets the checksum of the data that has been added so far
/// </summary>
public uint Checksum { get { return _checksum; } }
#endregion
#region Destructor & IDisposable stuff
/// <summary>
/// Destroys this instance
/// </summary>
~CodecBase()
{
CleanUp(false);
}
/// <summary>
/// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
/// </summary>
public void Dispose()
{
CleanUp(true);
}
/// <summary>
/// Performs any codec specific cleanup
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
protected abstract void CleanUp();
// performs the release of the handles and calls the dereived CleanUp()
private void CleanUp(bool isDisposing)
{
if (!_isDisposed)
{
CleanUp();
if (_hInput.IsAllocated)
_hInput.Free();
if (_hOutput.IsAllocated)
_hOutput.Free();
_isDisposed = true;
}
}
#endregion
#region Helper methods
/// <summary>
/// Copies a number of bytes to the internal codec buffer - ready for proccesing
/// </summary>
/// <param name="data">The byte array that contains the data to copy</param>
/// <param name="startIndex">The index of the first byte to copy</param>
/// <param name="count">The number of bytes to copy from <c>data</c></param>
protected void copyInput(byte[] data, int startIndex, int count)
{
Array.Copy(data, startIndex, _inBuffer,0, count);
_ztream.next_in = _hInput.AddrOfPinnedObject();
_ztream.total_in = 0;
_ztream.avail_in = (uint)count;
}
/// <summary>
/// Resets the internal output buffers to a known state - ready for processing
/// </summary>
protected void resetOutput()
{
_ztream.total_out = 0;
_ztream.avail_out = kBufferSize;
_ztream.next_out = _hOutput.AddrOfPinnedObject();
}
/// <summary>
/// Updates the running checksum property
/// </summary>
/// <param name="newSum">The new checksum value</param>
protected void setChecksum(uint newSum)
{
_checksum = newSum;
}
#endregion
}
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements the common functionality needed for all <see cref="Codec"/>s
/// </summary>
public abstract class CodecBase : Codec, IDisposable
{
#region Data members
/// <summary>
/// Instance of the internal zlib buffer structure that is
/// passed to all functions in the zlib dll
/// </summary>
internal ZStream _ztream = new ZStream();
/// <summary>
/// True if the object instance has been disposed, false otherwise
/// </summary>
protected bool _isDisposed = false;
/// <summary>
/// The size of the internal buffers
/// </summary>
protected const int kBufferSize = 16384;
private byte[] _outBuffer = new byte[kBufferSize];
private byte[] _inBuffer = new byte[kBufferSize];
private GCHandle _hInput;
private GCHandle _hOutput;
private uint _checksum = 0;
#endregion
/// <summary>
/// Initializes a new instance of the <c>CodeBase</c> class.
/// </summary>
public CodecBase()
{
try
{
_hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
_hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
}
catch (Exception)
{
CleanUp(false);
throw;
}
}
#region Codec Members
/// <summary>
/// Occurs when more processed data are available.
/// </summary>
public event DataAvailableHandler DataAvailable;
/// <summary>
/// Fires the <see cref="DataAvailable"/> event
/// </summary>
protected void OnDataAvailable()
{
if (_ztream.total_out > 0)
{
if (DataAvailable != null)
DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
resetOutput();
}
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public void Add(byte[] data)
{
Add(data,0,data.Length);
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Add(byte[] data, int offset, int count);
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Finish();
/// <summary>
/// Gets the checksum of the data that has been added so far
/// </summary>
public uint Checksum { get { return _checksum; } }
#endregion
#region Destructor & IDisposable stuff
/// <summary>
/// Destroys this instance
/// </summary>
~CodecBase()
{
CleanUp(false);
}
/// <summary>
/// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
/// </summary>
public void Dispose()
{
CleanUp(true);
}
/// <summary>
/// Performs any codec specific cleanup
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
protected abstract void CleanUp();
// performs the release of the handles and calls the derived CleanUp()
private void CleanUp(bool isDisposing)
{
if (!_isDisposed)
{
CleanUp();
if (_hInput.IsAllocated)
_hInput.Free();
if (_hOutput.IsAllocated)
_hOutput.Free();
_isDisposed = true;
}
}
#endregion
#region Helper methods
/// <summary>
/// Copies a number of bytes to the internal codec buffer - ready for processing
/// </summary>
/// <param name="data">The byte array that contains the data to copy</param>
/// <param name="startIndex">The index of the first byte to copy</param>
/// <param name="count">The number of bytes to copy from <c>data</c></param>
protected void copyInput(byte[] data, int startIndex, int count)
{
Array.Copy(data, startIndex, _inBuffer,0, count);
_ztream.next_in = _hInput.AddrOfPinnedObject();
_ztream.total_in = 0;
_ztream.avail_in = (uint)count;
}
/// <summary>
/// Resets the internal output buffers to a known state - ready for processing
/// </summary>
protected void resetOutput()
{
_ztream.total_out = 0;
_ztream.avail_out = kBufferSize;
_ztream.next_out = _hOutput.AddrOfPinnedObject();
}
/// <summary>
/// Updates the running checksum property
/// </summary>
/// <param name="newSum">The new checksum value</param>
protected void setChecksum(uint newSum)
{
_checksum = newSum;
}
#endregion
}
}
@@ -1,106 +1,106 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data compressor, using the deflate algorithm in the ZLib dll
/// </summary>
public sealed class Deflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Deflater</c>
/// </summary>
/// <param name="level">The compression level to use for this <c>Deflater</c></param>
public Deflater(CompressLevel level) : base()
{
int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize deflater");
resetOutput();
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
while (err >= 0 && _ztream.avail_in > 0)
{
err = deflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = deflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = deflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
deflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib deflate stream
/// </summary>
protected override void CleanUp() { deflateEnd(ref _ztream); }
}
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data compressor, using the deflate algorithm in the ZLib dll
/// </summary>
public sealed class Deflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Deflater</c>
/// </summary>
/// <param name="level">The compression level to use for this <c>Deflater</c></param>
public Deflater(CompressLevel level) : base()
{
int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize deflater");
resetOutput();
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
while (err >= 0 && _ztream.avail_in > 0)
{
err = deflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = deflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = deflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
deflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib deflate stream
/// </summary>
protected override void CleanUp() { deflateEnd(ref _ztream); }
}
}
@@ -1,288 +1,288 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace DotZLib
{
#region Internal types
/// <summary>
/// Defines constants for the various flush types used with zlib
/// </summary>
internal enum FlushTypes
{
None, Partial, Sync, Full, Finish, Block
}
#region ZStream structure
// internal mapping of the zlib zstream structure for marshalling
[StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
internal struct ZStream
{
public IntPtr next_in;
public uint avail_in;
public uint total_in;
public IntPtr next_out;
public uint avail_out;
public uint total_out;
[MarshalAs(UnmanagedType.LPStr)]
string msg;
uint state;
uint zalloc;
uint zfree;
uint opaque;
int data_type;
public uint adler;
uint reserved;
}
#endregion
#endregion
#region Public enums
/// <summary>
/// Defines constants for the available compression levels in zlib
/// </summary>
public enum CompressLevel : int
{
/// <summary>
/// The default compression level with a reasonable compromise between compression and speed
/// </summary>
Default = -1,
/// <summary>
/// No compression at all. The data are passed straight through.
/// </summary>
None = 0,
/// <summary>
/// The maximum compression rate available.
/// </summary>
Best = 9,
/// <summary>
/// The fastest available compression level.
/// </summary>
Fastest = 1
}
#endregion
#region Exception classes
/// <summary>
/// The exception that is thrown when an error occurs on the zlib dll
/// </summary>
public class ZLibException : ApplicationException
{
/// <summary>
/// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
/// error message and error code
/// </summary>
/// <param name="errorCode">The zlib error code that caused the exception</param>
/// <param name="msg">A message that (hopefully) describes the error</param>
public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
/// error code
/// </summary>
/// <param name="errorCode">The zlib error code that caused the exception</param>
public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
{
}
}
#endregion
#region Interfaces
/// <summary>
/// Declares methods and properties that enables a running checksum to be calculated
/// </summary>
public interface ChecksumGenerator
{
/// <summary>
/// Gets the current value of the checksum
/// </summary>
uint Value { get; }
/// <summary>
/// Clears the current checksum to 0
/// </summary>
void Reset();
/// <summary>
/// Updates the current checksum with an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
void Update(byte[] data);
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
void Update(byte[] data, int offset, int count);
/// <summary>
/// Updates the current checksum with the data from a string
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
void Update(string data);
/// <summary>
/// Updates the current checksum with the data from a string, using a specific encoding
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <param name="encoding">The encoding to use</param>
void Update(string data, Encoding encoding);
}
/// <summary>
/// Represents the method that will be called from a codec when new data
/// are available.
/// </summary>
/// <paramref name="data">The byte array containing the processed data</paramref>
/// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
/// <paramref name="count">The number of processed bytes available</paramref>
/// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
/// You cannot assume that startIndex will be zero.
/// </remarks>
public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
/// <summary>
/// Declares methods and events for implementing compressors/decompressors
/// </summary>
public interface Codec
{
/// <summary>
/// Occurs when more processed data are available.
/// </summary>
event DataAvailableHandler DataAvailable;
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
void Add(byte[] data);
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
void Add(byte[] data, int offset, int count);
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
void Finish();
/// <summary>
/// Gets the checksum of the data that has been added so far
/// </summary>
uint Checksum { get; }
}
#endregion
#region Classes
/// <summary>
/// Encapsulates general information about the ZLib library
/// </summary>
public class Info
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint zlibCompileFlags();
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern string zlibVersion();
#endregion
#region Private stuff
private uint _flags;
// helper function that unpacks a bitsize mask
private static int bitSize(uint bits)
{
switch (bits)
{
case 0: return 16;
case 1: return 32;
case 2: return 64;
}
return -1;
}
#endregion
/// <summary>
/// Constructs an instance of the <c>Info</c> class.
/// </summary>
public Info()
{
_flags = zlibCompileFlags();
}
/// <summary>
/// True if the library is compiled with debug info
/// </summary>
public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
/// <summary>
/// True if the library is compiled with assembly optimizations
/// </summary>
public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
/// <summary>
/// Gets the size of the unsigned int that was compiled into Zlib
/// </summary>
public int SizeOfUInt { get { return bitSize(_flags & 3); } }
/// <summary>
/// Gets the size of the unsigned long that was compiled into Zlib
/// </summary>
public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
/// <summary>
/// Gets the size of the pointers that were compiled into Zlib
/// </summary>
public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
/// <summary>
/// Gets the size of the z_off_t type that was compiled into Zlib
/// </summary>
public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
/// <summary>
/// Gets the version of ZLib as a string, e.g. "1.2.1"
/// </summary>
public static string Version { get { return zlibVersion(); } }
}
#endregion
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace DotZLib
{
#region Internal types
/// <summary>
/// Defines constants for the various flush types used with zlib
/// </summary>
internal enum FlushTypes
{
None, Partial, Sync, Full, Finish, Block
}
#region ZStream structure
// internal mapping of the zlib zstream structure for marshalling
[StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
internal struct ZStream
{
public IntPtr next_in;
public uint avail_in;
public uint total_in;
public IntPtr next_out;
public uint avail_out;
public uint total_out;
[MarshalAs(UnmanagedType.LPStr)]
string msg;
uint state;
uint zalloc;
uint zfree;
uint opaque;
int data_type;
public uint adler;
uint reserved;
}
#endregion
#endregion
#region Public enums
/// <summary>
/// Defines constants for the available compression levels in zlib
/// </summary>
public enum CompressLevel : int
{
/// <summary>
/// The default compression level with a reasonable compromise between compression and speed
/// </summary>
Default = -1,
/// <summary>
/// No compression at all. The data are passed straight through.
/// </summary>
None = 0,
/// <summary>
/// The maximum compression rate available.
/// </summary>
Best = 9,
/// <summary>
/// The fastest available compression level.
/// </summary>
Fastest = 1
}
#endregion
#region Exception classes
/// <summary>
/// The exception that is thrown when an error occurs on the zlib dll
/// </summary>
public class ZLibException : ApplicationException
{
/// <summary>
/// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
/// error message and error code
/// </summary>
/// <param name="errorCode">The zlib error code that caused the exception</param>
/// <param name="msg">A message that (hopefully) describes the error</param>
public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
/// error code
/// </summary>
/// <param name="errorCode">The zlib error code that caused the exception</param>
public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
{
}
}
#endregion
#region Interfaces
/// <summary>
/// Declares methods and properties that enables a running checksum to be calculated
/// </summary>
public interface ChecksumGenerator
{
/// <summary>
/// Gets the current value of the checksum
/// </summary>
uint Value { get; }
/// <summary>
/// Clears the current checksum to 0
/// </summary>
void Reset();
/// <summary>
/// Updates the current checksum with an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
void Update(byte[] data);
/// <summary>
/// Updates the current checksum with part of an array of bytes
/// </summary>
/// <param name="data">The data to update the checksum with</param>
/// <param name="offset">Where in <c>data</c> to start updating</param>
/// <param name="count">The number of bytes from <c>data</c> to use</param>
/// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
/// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
void Update(byte[] data, int offset, int count);
/// <summary>
/// Updates the current checksum with the data from a string
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
void Update(string data);
/// <summary>
/// Updates the current checksum with the data from a string, using a specific encoding
/// </summary>
/// <param name="data">The string to update the checksum with</param>
/// <param name="encoding">The encoding to use</param>
void Update(string data, Encoding encoding);
}
/// <summary>
/// Represents the method that will be called from a codec when new data
/// are available.
/// </summary>
/// <paramref name="data">The byte array containing the processed data</paramref>
/// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
/// <paramref name="count">The number of processed bytes available</paramref>
/// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
/// You cannot assume that startIndex will be zero.
/// </remarks>
public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
/// <summary>
/// Declares methods and events for implementing compressors/decompressors
/// </summary>
public interface Codec
{
/// <summary>
/// Occurs when more processed data are available.
/// </summary>
event DataAvailableHandler DataAvailable;
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
void Add(byte[] data);
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
void Add(byte[] data, int offset, int count);
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
void Finish();
/// <summary>
/// Gets the checksum of the data that has been added so far
/// </summary>
uint Checksum { get; }
}
#endregion
#region Classes
/// <summary>
/// Encapsulates general information about the ZLib library
/// </summary>
public class Info
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint zlibCompileFlags();
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern string zlibVersion();
#endregion
#region Private stuff
private uint _flags;
// helper function that unpacks a bitsize mask
private static int bitSize(uint bits)
{
switch (bits)
{
case 0: return 16;
case 1: return 32;
case 2: return 64;
}
return -1;
}
#endregion
/// <summary>
/// Constructs an instance of the <c>Info</c> class.
/// </summary>
public Info()
{
_flags = zlibCompileFlags();
}
/// <summary>
/// True if the library is compiled with debug info
/// </summary>
public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
/// <summary>
/// True if the library is compiled with assembly optimizations
/// </summary>
public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
/// <summary>
/// Gets the size of the unsigned int that was compiled into Zlib
/// </summary>
public int SizeOfUInt { get { return bitSize(_flags & 3); } }
/// <summary>
/// Gets the size of the unsigned long that was compiled into Zlib
/// </summary>
public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
/// <summary>
/// Gets the size of the pointers that were compiled into Zlib
/// </summary>
public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
/// <summary>
/// Gets the size of the z_off_t type that was compiled into Zlib
/// </summary>
public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
/// <summary>
/// Gets the version of ZLib as a string, e.g. "1.2.1"
/// </summary>
public static string Version { get { return zlibVersion(); } }
}
#endregion
}
@@ -1,141 +1,141 @@
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//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
/// </summary>
public class GZipStream : Stream, IDisposable
{
#region Dll Imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern IntPtr gzopen(string name, string mode);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzclose(IntPtr gzFile);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzwrite(IntPtr gzFile, int data, int length);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzread(IntPtr gzFile, int data, int length);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzgetc(IntPtr gzFile);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzputc(IntPtr gzFile, int c);
#endregion
#region Private data
private IntPtr _gzFile;
private bool _isDisposed = false;
private bool _isWriting;
#endregion
#region Constructors
/// <summary>
/// Creates a new file as a writeable GZipStream
/// </summary>
/// <param name="fileName">The name of the compressed file to create</param>
/// <param name="level">The compression level to use when adding data</param>
/// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
public GZipStream(string fileName, CompressLevel level)
{
_isWriting = true;
_gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
if (_gzFile == IntPtr.Zero)
throw new ZLibException(-1, "Could not open " + fileName);
}
/// <summary>
/// Opens an existing file as a readable GZipStream
/// </summary>
/// <param name="fileName">The name of the file to open</param>
/// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
public GZipStream(string fileName)
{
_isWriting = false;
_gzFile = gzopen(fileName, "rb");
if (_gzFile == IntPtr.Zero)
throw new ZLibException(-1, "Could not open " + fileName);
}
#endregion
#region Access properties
/// <summary>
/// Returns true of this stream can be read from, false otherwise
/// </summary>
public override bool CanRead
{
get
{
return !_isWriting;
}
}
/// <summary>
/// Returns false.
/// </summary>
public override bool CanSeek
{
get
{
return false;
}
}
/// <summary>
/// Returns true if this tsream is writeable, false otherwise
/// </summary>
public override bool CanWrite
{
get
{
return _isWriting;
}
}
#endregion
#region Destructor & IDispose stuff
/// <summary>
/// Destroys this instance
/// </summary>
~GZipStream()
{
cleanUp(false);
}
/// <summary>
/// Closes the external file handle
/// </summary>
public void Dispose()
{
cleanUp(true);
}
// Does the actual closing of the file handle.
private void cleanUp(bool isDisposing)
{
if (!_isDisposed)
{
gzclose(_gzFile);
_isDisposed = true;
}
}
#endregion
#region Basic reading and writing
/// <summary>
/// Attempts to read a number of bytes from the stream.
/// </summary>
/// <param name="buffer">The destination data buffer</param>
/// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
/// <param name="count">The number of bytes requested</param>
/// <returns>The number of bytes read</returns>
/// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
/// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
/// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
/// <exception cref="NotSupportedException">If this stream is not readable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override int Read(byte[] buffer, int offset, int count)
{
if (!CanRead) throw new NotSupportedException();
if (buffer == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > buffer.Length) throw new ArgumentException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
int result;
try
{
result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
if (result < 0)
throw new IOException();
}
finally
{
h.Free();
}
return result;
}
/// <summary>
/// Attempts to read a single byte from the stream.
/// </summary>
/// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
public override int ReadByte()
{
if (!CanRead) throw new NotSupportedException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
return gzgetc(_gzFile);
}
/// <summary>
/// Writes a number of bytes to the stream
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
/// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
/// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
/// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override void Write(byte[] buffer, int offset, int count)
{
if (!CanWrite) throw new NotSupportedException();
if (buffer == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > buffer.Length) throw new ArgumentException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try
{
int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
if (result < 0)
throw new IOException();
}
finally
{
h.Free();
}
}
/// <summary>
/// Writes a single byte to the stream
/// </summary>
/// <param name="value">The byte to add to the stream.</param>
/// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override void WriteByte(byte value)
{
if (!CanWrite) throw new NotSupportedException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
int result = gzputc(_gzFile, (int)value);
if (result < 0)
throw new IOException();
}
#endregion
#region Position & length stuff
/// <summary>
/// Not supported.
/// </summary>
/// <param name="value"></param>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override void SetLength(long value)
{
throw new NotSupportedException();
}
/// <summary>
/// Not suppported.
/// </summary>
/// <param name="offset"></param>
/// <param name="origin"></param>
/// <returns></returns>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
/// <summary>
/// Flushes the <c>GZipStream</c>.
/// </summary>
/// <remarks>In this implementation, this method does nothing. This is because excessive
/// flushing may degrade the achievable compression rates.</remarks>
public override void Flush()
{
// left empty on purpose
}
/// <summary>
/// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
/// </summary>
/// <remarks>In this implementation this property is not supported</remarks>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Position
{
get
{
throw new NotSupportedException();
}
set
{
throw new NotSupportedException();
}
}
/// <summary>
/// Gets the size of the stream. Not suppported.
/// </summary>
/// <remarks>In this implementation this property is not supported</remarks>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Length
{
get
{
throw new NotSupportedException();
}
}
#endregion
}
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
/// </summary>
public class GZipStream : Stream, IDisposable
{
#region Dll Imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern IntPtr gzopen(string name, string mode);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzclose(IntPtr gzFile);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzwrite(IntPtr gzFile, int data, int length);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzread(IntPtr gzFile, int data, int length);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzgetc(IntPtr gzFile);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int gzputc(IntPtr gzFile, int c);
#endregion
#region Private data
private IntPtr _gzFile;
private bool _isDisposed = false;
private bool _isWriting;
#endregion
#region Constructors
/// <summary>
/// Creates a new file as a writeable GZipStream
/// </summary>
/// <param name="fileName">The name of the compressed file to create</param>
/// <param name="level">The compression level to use when adding data</param>
/// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
public GZipStream(string fileName, CompressLevel level)
{
_isWriting = true;
_gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
if (_gzFile == IntPtr.Zero)
throw new ZLibException(-1, "Could not open " + fileName);
}
/// <summary>
/// Opens an existing file as a readable GZipStream
/// </summary>
/// <param name="fileName">The name of the file to open</param>
/// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
public GZipStream(string fileName)
{
_isWriting = false;
_gzFile = gzopen(fileName, "rb");
if (_gzFile == IntPtr.Zero)
throw new ZLibException(-1, "Could not open " + fileName);
}
#endregion
#region Access properties
/// <summary>
/// Returns true of this stream can be read from, false otherwise
/// </summary>
public override bool CanRead
{
get
{
return !_isWriting;
}
}
/// <summary>
/// Returns false.
/// </summary>
public override bool CanSeek
{
get
{
return false;
}
}
/// <summary>
/// Returns true if this tsream is writeable, false otherwise
/// </summary>
public override bool CanWrite
{
get
{
return _isWriting;
}
}
#endregion
#region Destructor & IDispose stuff
/// <summary>
/// Destroys this instance
/// </summary>
~GZipStream()
{
cleanUp(false);
}
/// <summary>
/// Closes the external file handle
/// </summary>
public void Dispose()
{
cleanUp(true);
}
// Does the actual closing of the file handle.
private void cleanUp(bool isDisposing)
{
if (!_isDisposed)
{
gzclose(_gzFile);
_isDisposed = true;
}
}
#endregion
#region Basic reading and writing
/// <summary>
/// Attempts to read a number of bytes from the stream.
/// </summary>
/// <param name="buffer">The destination data buffer</param>
/// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
/// <param name="count">The number of bytes requested</param>
/// <returns>The number of bytes read</returns>
/// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
/// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
/// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
/// <exception cref="NotSupportedException">If this stream is not readable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override int Read(byte[] buffer, int offset, int count)
{
if (!CanRead) throw new NotSupportedException();
if (buffer == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > buffer.Length) throw new ArgumentException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
int result;
try
{
result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
if (result < 0)
throw new IOException();
}
finally
{
h.Free();
}
return result;
}
/// <summary>
/// Attempts to read a single byte from the stream.
/// </summary>
/// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
public override int ReadByte()
{
if (!CanRead) throw new NotSupportedException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
return gzgetc(_gzFile);
}
/// <summary>
/// Writes a number of bytes to the stream
/// </summary>
/// <param name="buffer"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
/// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
/// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
/// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
/// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override void Write(byte[] buffer, int offset, int count)
{
if (!CanWrite) throw new NotSupportedException();
if (buffer == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > buffer.Length) throw new ArgumentException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
try
{
int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
if (result < 0)
throw new IOException();
}
finally
{
h.Free();
}
}
/// <summary>
/// Writes a single byte to the stream
/// </summary>
/// <param name="value">The byte to add to the stream.</param>
/// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
/// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
public override void WriteByte(byte value)
{
if (!CanWrite) throw new NotSupportedException();
if (_isDisposed) throw new ObjectDisposedException("GZipStream");
int result = gzputc(_gzFile, (int)value);
if (result < 0)
throw new IOException();
}
#endregion
#region Position & length stuff
/// <summary>
/// Not supported.
/// </summary>
/// <param name="value"></param>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override void SetLength(long value)
{
throw new NotSupportedException();
}
/// <summary>
/// Not supported.
/// </summary>
/// <param name="offset"></param>
/// <param name="origin"></param>
/// <returns></returns>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
/// <summary>
/// Flushes the <c>GZipStream</c>.
/// </summary>
/// <remarks>In this implementation, this method does nothing. This is because excessive
/// flushing may degrade the achievable compression rates.</remarks>
public override void Flush()
{
// left empty on purpose
}
/// <summary>
/// Gets/sets the current position in the <c>GZipStream</c>. Not supported.
/// </summary>
/// <remarks>In this implementation this property is not supported</remarks>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Position
{
get
{
throw new NotSupportedException();
}
set
{
throw new NotSupportedException();
}
}
/// <summary>
/// Gets the size of the stream. Not supported.
/// </summary>
/// <remarks>In this implementation this property is not supported</remarks>
/// <exception cref="NotSupportedException">Always thrown</exception>
public override long Length
{
get
{
throw new NotSupportedException();
}
}
#endregion
}
}
@@ -1,105 +1,105 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data decompressor, using the inflate algorithm in the ZLib dll
/// </summary>
public class Inflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int inflateInit_(ref ZStream sz, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Inflater</c>
/// </summary>
public Inflater() : base()
{
int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize inflater");
resetOutput();
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
err = inflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = inflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = inflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
inflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib inflate stream
/// </summary>
protected override void CleanUp() { inflateEnd(ref _ztream); }
}
}
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data decompressor, using the inflate algorithm in the ZLib dll
/// </summary>
public class Inflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int inflateInit_(ref ZStream sz, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Inflater</c>
/// </summary>
public Inflater() : base()
{
int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize inflater");
resetOutput();
}
/// <summary>
/// Adds more data to the codec to be processed.
/// </summary>
/// <param name="data">Byte array containing the data to be added to the codec</param>
/// <param name="offset">The index of the first byte to add from <c>data</c></param>
/// <param name="count">The number of bytes to add</param>
/// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
err = inflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = inflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = inflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
inflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib inflate stream
/// </summary>
protected override void CleanUp() { inflateEnd(ref _ztream); }
}
}
@@ -1,274 +1,274 @@
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Collections;
using System.IO;
// uncomment the define below to include unit tests
//#define nunit
#if nunit
using NUnit.Framework;
// Unit tests for the DotZLib class library
// ----------------------------------------
//
// Use this with NUnit 2 from http://www.nunit.org
//
namespace DotZLibTests
{
using DotZLib;
// helper methods
internal class Utils
{
public static bool byteArrEqual( byte[] lhs, byte[] rhs )
{
if (lhs.Length != rhs.Length)
return false;
for (int i = lhs.Length-1; i >= 0; --i)
if (lhs[i] != rhs[i])
return false;
return true;
}
}
[TestFixture]
public class CircBufferTests
{
#region Circular buffer tests
[Test]
public void SinglePutGet()
{
CircularBuffer buf = new CircularBuffer(10);
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
Assert.IsTrue(buf.Put( 1 ));
Assert.AreEqual( 1, buf.Size );
Assert.AreEqual( 1, buf.Get() );
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
}
[Test]
public void BlockPutGet()
{
CircularBuffer buf = new CircularBuffer(10);
byte[] arr = {1,2,3,4,5,6,7,8,9,10};
Assert.AreEqual( 10, buf.Put(arr,0,10) );
Assert.AreEqual( 10, buf.Size );
Assert.IsFalse( buf.Put(11) );
Assert.AreEqual( 1, buf.Get() );
Assert.IsTrue( buf.Put(11) );
byte[] arr2 = (byte[])arr.Clone();
Assert.AreEqual( 9, buf.Get(arr2,1,9) );
Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
}
#endregion
}
[TestFixture]
public class ChecksumTests
{
#region CRC32 Tests
[Test]
public void CRC32_Null()
{
CRC32Checksum crc32 = new CRC32Checksum();
Assert.AreEqual( 0, crc32.Value );
crc32 = new CRC32Checksum(1);
Assert.AreEqual( 1, crc32.Value );
crc32 = new CRC32Checksum(556);
Assert.AreEqual( 556, crc32.Value );
}
[Test]
public void CRC32_Data()
{
CRC32Checksum crc32 = new CRC32Checksum();
byte[] data = { 1,2,3,4,5,6,7 };
crc32.Update(data);
Assert.AreEqual( 0x70e46888, crc32.Value );
crc32 = new CRC32Checksum();
crc32.Update("penguin");
Assert.AreEqual( 0x0e5c1a120, crc32.Value );
crc32 = new CRC32Checksum(1);
crc32.Update("penguin");
Assert.AreEqual(0x43b6aa94, crc32.Value);
}
#endregion
#region Adler tests
[Test]
public void Adler_Null()
{
AdlerChecksum adler = new AdlerChecksum();
Assert.AreEqual(0, adler.Value);
adler = new AdlerChecksum(1);
Assert.AreEqual( 1, adler.Value );
adler = new AdlerChecksum(556);
Assert.AreEqual( 556, adler.Value );
}
[Test]
public void Adler_Data()
{
AdlerChecksum adler = new AdlerChecksum(1);
byte[] data = { 1,2,3,4,5,6,7 };
adler.Update(data);
Assert.AreEqual( 0x5b001d, adler.Value );
adler = new AdlerChecksum();
adler.Update("penguin");
Assert.AreEqual(0x0bcf02f6, adler.Value );
adler = new AdlerChecksum(1);
adler.Update("penguin");
Assert.AreEqual(0x0bd602f7, adler.Value);
}
#endregion
}
[TestFixture]
public class InfoTests
{
#region Info tests
[Test]
public void Info_Version()
{
Info info = new Info();
Assert.AreEqual("1.2.12", Info.Version);
Assert.AreEqual(32, info.SizeOfUInt);
Assert.AreEqual(32, info.SizeOfULong);
Assert.AreEqual(32, info.SizeOfPointer);
Assert.AreEqual(32, info.SizeOfOffset);
}
#endregion
}
[TestFixture]
public class DeflateInflateTests
{
#region Deflate tests
[Test]
public void Deflate_Init()
{
using (Deflater def = new Deflater(CompressLevel.Default))
{
}
}
private ArrayList compressedData = new ArrayList();
private uint adler1;
private ArrayList uncompressedData = new ArrayList();
private uint adler2;
public void CDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
compressedData.Add(data[i+startIndex]);
}
[Test]
public void Deflate_Compress()
{
compressedData.Clear();
byte[] testData = new byte[35000];
for (int i = 0; i < testData.Length; ++i)
testData[i] = 5;
using (Deflater def = new Deflater((CompressLevel)5))
{
def.DataAvailable += new DataAvailableHandler(CDataAvail);
def.Add(testData);
def.Finish();
adler1 = def.Checksum;
}
}
#endregion
#region Inflate tests
[Test]
public void Inflate_Init()
{
using (Inflater inf = new Inflater())
{
}
}
private void DDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
uncompressedData.Add(data[i+startIndex]);
}
[Test]
public void Inflate_Expand()
{
uncompressedData.Clear();
using (Inflater inf = new Inflater())
{
inf.DataAvailable += new DataAvailableHandler(DDataAvail);
inf.Add((byte[])compressedData.ToArray(typeof(byte)));
inf.Finish();
adler2 = inf.Checksum;
}
Assert.AreEqual( adler1, adler2 );
}
#endregion
}
[TestFixture]
public class GZipStreamTests
{
#region GZipStream test
[Test]
public void GZipStream_WriteRead()
{
using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
{
BinaryWriter writer = new BinaryWriter(gzOut);
writer.Write("hi there");
writer.Write(Math.PI);
writer.Write(42);
}
using (GZipStream gzIn = new GZipStream("gzstream.gz"))
{
BinaryReader reader = new BinaryReader(gzIn);
string s = reader.ReadString();
Assert.AreEqual("hi there",s);
double d = reader.ReadDouble();
Assert.AreEqual(Math.PI, d);
int i = reader.ReadInt32();
Assert.AreEqual(42,i);
}
}
#endregion
}
}
#endif
//
// © Copyright Henrik Ravn 2004
//
// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using System;
using System.Collections;
using System.IO;
// uncomment the define below to include unit tests
//#define nunit
#if nunit
using NUnit.Framework;
// Unit tests for the DotZLib class library
// ----------------------------------------
//
// Use this with NUnit 2 from http://www.nunit.org
//
namespace DotZLibTests
{
using DotZLib;
// helper methods
internal class Utils
{
public static bool byteArrEqual( byte[] lhs, byte[] rhs )
{
if (lhs.Length != rhs.Length)
return false;
for (int i = lhs.Length-1; i >= 0; --i)
if (lhs[i] != rhs[i])
return false;
return true;
}
}
[TestFixture]
public class CircBufferTests
{
#region Circular buffer tests
[Test]
public void SinglePutGet()
{
CircularBuffer buf = new CircularBuffer(10);
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
Assert.IsTrue(buf.Put( 1 ));
Assert.AreEqual( 1, buf.Size );
Assert.AreEqual( 1, buf.Get() );
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
}
[Test]
public void BlockPutGet()
{
CircularBuffer buf = new CircularBuffer(10);
byte[] arr = {1,2,3,4,5,6,7,8,9,10};
Assert.AreEqual( 10, buf.Put(arr,0,10) );
Assert.AreEqual( 10, buf.Size );
Assert.IsFalse( buf.Put(11) );
Assert.AreEqual( 1, buf.Get() );
Assert.IsTrue( buf.Put(11) );
byte[] arr2 = (byte[])arr.Clone();
Assert.AreEqual( 9, buf.Get(arr2,1,9) );
Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
}
#endregion
}
[TestFixture]
public class ChecksumTests
{
#region CRC32 Tests
[Test]
public void CRC32_Null()
{
CRC32Checksum crc32 = new CRC32Checksum();
Assert.AreEqual( 0, crc32.Value );
crc32 = new CRC32Checksum(1);
Assert.AreEqual( 1, crc32.Value );
crc32 = new CRC32Checksum(556);
Assert.AreEqual( 556, crc32.Value );
}
[Test]
public void CRC32_Data()
{
CRC32Checksum crc32 = new CRC32Checksum();
byte[] data = { 1,2,3,4,5,6,7 };
crc32.Update(data);
Assert.AreEqual( 0x70e46888, crc32.Value );
crc32 = new CRC32Checksum();
crc32.Update("penguin");
Assert.AreEqual( 0x0e5c1a120, crc32.Value );
crc32 = new CRC32Checksum(1);
crc32.Update("penguin");
Assert.AreEqual(0x43b6aa94, crc32.Value);
}
#endregion
#region Adler tests
[Test]
public void Adler_Null()
{
AdlerChecksum adler = new AdlerChecksum();
Assert.AreEqual(0, adler.Value);
adler = new AdlerChecksum(1);
Assert.AreEqual( 1, adler.Value );
adler = new AdlerChecksum(556);
Assert.AreEqual( 556, adler.Value );
}
[Test]
public void Adler_Data()
{
AdlerChecksum adler = new AdlerChecksum(1);
byte[] data = { 1,2,3,4,5,6,7 };
adler.Update(data);
Assert.AreEqual( 0x5b001d, adler.Value );
adler = new AdlerChecksum();
adler.Update("penguin");
Assert.AreEqual(0x0bcf02f6, adler.Value );
adler = new AdlerChecksum(1);
adler.Update("penguin");
Assert.AreEqual(0x0bd602f7, adler.Value);
}
#endregion
}
[TestFixture]
public class InfoTests
{
#region Info tests
[Test]
public void Info_Version()
{
Info info = new Info();
Assert.AreEqual("1.3.1", Info.Version);
Assert.AreEqual(32, info.SizeOfUInt);
Assert.AreEqual(32, info.SizeOfULong);
Assert.AreEqual(32, info.SizeOfPointer);
Assert.AreEqual(32, info.SizeOfOffset);
}
#endregion
}
[TestFixture]
public class DeflateInflateTests
{
#region Deflate tests
[Test]
public void Deflate_Init()
{
using (Deflater def = new Deflater(CompressLevel.Default))
{
}
}
private ArrayList compressedData = new ArrayList();
private uint adler1;
private ArrayList uncompressedData = new ArrayList();
private uint adler2;
public void CDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
compressedData.Add(data[i+startIndex]);
}
[Test]
public void Deflate_Compress()
{
compressedData.Clear();
byte[] testData = new byte[35000];
for (int i = 0; i < testData.Length; ++i)
testData[i] = 5;
using (Deflater def = new Deflater((CompressLevel)5))
{
def.DataAvailable += new DataAvailableHandler(CDataAvail);
def.Add(testData);
def.Finish();
adler1 = def.Checksum;
}
}
#endregion
#region Inflate tests
[Test]
public void Inflate_Init()
{
using (Inflater inf = new Inflater())
{
}
}
private void DDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
uncompressedData.Add(data[i+startIndex]);
}
[Test]
public void Inflate_Expand()
{
uncompressedData.Clear();
using (Inflater inf = new Inflater())
{
inf.DataAvailable += new DataAvailableHandler(DDataAvail);
inf.Add((byte[])compressedData.ToArray(typeof(byte)));
inf.Finish();
adler2 = inf.Checksum;
}
Assert.AreEqual( adler1, adler2 );
}
#endregion
}
[TestFixture]
public class GZipStreamTests
{
#region GZipStream test
[Test]
public void GZipStream_WriteRead()
{
using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
{
BinaryWriter writer = new BinaryWriter(gzOut);
writer.Write("hi there");
writer.Write(Math.PI);
writer.Write(42);
}
using (GZipStream gzIn = new GZipStream("gzstream.gz"))
{
BinaryReader reader = new BinaryReader(gzIn);
string s = reader.ReadString();
Assert.AreEqual("hi there",s);
double d = reader.ReadDouble();
Assert.AreEqual(Math.PI, d);
int i = reader.ReadInt32();
Assert.AreEqual(42,i);
}
}
#endregion
}
}
#endif
@@ -1,23 +1,23 @@
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
@@ -1,58 +1,58 @@
This directory contains a .Net wrapper class library for the ZLib1.dll
The wrapper includes support for inflating/deflating memory buffers,
.Net streaming wrappers for the gz streams part of zlib, and wrappers
for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
Directory structure:
--------------------
LICENSE_1_0.txt - License file.
readme.txt - This file.
DotZLib.chm - Class library documentation
DotZLib.build - NAnt build file
DotZLib.sln - Microsoft Visual Studio 2003 solution file
DotZLib\*.cs - Source files for the class library
Unit tests:
-----------
The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
To include unit tests in the build, define nunit before building.
Build instructions:
-------------------
1. Using Visual Studio.Net 2003:
Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
you are building the release or debug version of the library. Check
DotZLib/UnitTests.cs for instructions on how to include unit tests in the
build.
2. Using NAnt:
Open a command prompt with access to the build environment and run nant
in the same directory as the DotZLib.build file.
You can define 2 properties on the nant command-line to control the build:
debug={true|false} to toggle between release/debug builds (default=true).
nunit={true|false} to include or esclude unit tests (default=true).
Also the target clean will remove binaries.
Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
or ./DotZLib/bin/debug, depending on whether you are building the release
or debug version of the library.
Examples:
nant -D:debug=false -D:nunit=false
will build a release mode version of the library without unit tests.
nant
will build a debug version of the library with unit tests
nant clean
will remove all previously built files.
---------------------------------
Copyright (c) Henrik Ravn 2004
Use, modification and distribution are subject to the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
This directory contains a .Net wrapper class library for the ZLib1.dll
The wrapper includes support for inflating/deflating memory buffers,
.Net streaming wrappers for the gz streams part of zlib, and wrappers
for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
Directory structure:
--------------------
LICENSE_1_0.txt - License file.
readme.txt - This file.
DotZLib.chm - Class library documentation
DotZLib.build - NAnt build file
DotZLib.sln - Microsoft Visual Studio 2003 solution file
DotZLib\*.cs - Source files for the class library
Unit tests:
-----------
The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
To include unit tests in the build, define nunit before building.
Build instructions:
-------------------
1. Using Visual Studio.Net 2003:
Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
you are building the release or debug version of the library. Check
DotZLib/UnitTests.cs for instructions on how to include unit tests in the
build.
2. Using NAnt:
Open a command prompt with access to the build environment and run nant
in the same directory as the DotZLib.build file.
You can define 2 properties on the nant command-line to control the build:
debug={true|false} to toggle between release/debug builds (default=true).
nunit={true|false} to include or exclude unit tests (default=true).
Also the target clean will remove binaries.
Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
or ./DotZLib/bin/debug, depending on whether you are building the release
or debug version of the library.
Examples:
nant -D:debug=false -D:nunit=false
will build a release mode version of the library without unit tests.
nant
will build a debug version of the library with unit tests
nant clean
will remove all previously built files.
---------------------------------
Copyright (c) Henrik Ravn 2004
Use, modification and distribution are subject to the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,12 +16,8 @@
window is a user-supplied window and output buffer that is 64K bytes.
*/
int ZEXPORT inflateBack9Init_(strm, window, version, stream_size)
z_stream FAR *strm;
unsigned char FAR *window;
const char *version;
int stream_size;
{
int ZEXPORT inflateBack9Init_(z_stream FAR *strm, unsigned char FAR *window,
const char *version, int stream_size) {
struct inflate_state FAR *state;
if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
@@ -51,8 +47,7 @@ int stream_size;
#ifdef MAKEFIXED
#include <stdio.h>
void makefixed9(void)
{
void makefixed9(void) {
unsigned sym, bits, low, size;
code *next, *lenfix, *distfix;
struct inflate_state state;
@@ -214,13 +209,8 @@ void makefixed9(void)
inflateBack() can also return Z_STREAM_ERROR if the input parameters
are not correct, i.e. strm is Z_NULL or the state was not initialized.
*/
int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc)
z_stream FAR *strm;
in_func in;
void FAR *in_desc;
out_func out;
void FAR *out_desc;
{
int ZEXPORT inflateBack9(z_stream FAR *strm, in_func in, void FAR *in_desc,
out_func out, void FAR *out_desc) {
struct inflate_state FAR *state;
z_const unsigned char FAR *next; /* next input */
unsigned char FAR *put; /* next output */
@@ -603,9 +593,7 @@ void FAR *out_desc;
return ret;
}
int ZEXPORT inflateBack9End(strm)
z_stream FAR *strm;
{
int ZEXPORT inflateBack9End(z_stream FAR *strm) {
if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
return Z_STREAM_ERROR;
ZFREE(strm, strm->state);
@@ -20,14 +20,14 @@
extern "C" {
#endif
ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm,
in_func in, void FAR *in_desc,
out_func out, void FAR *out_desc));
ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm));
ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm,
unsigned char FAR *window,
const char *version,
int stream_size));
ZEXTERN int ZEXPORT inflateBack9(z_stream FAR *strm,
in_func in, void FAR *in_desc,
out_func out, void FAR *out_desc);
ZEXTERN int ZEXPORT inflateBack9End(z_stream FAR *strm);
ZEXTERN int ZEXPORT inflateBack9Init_(z_stream FAR *strm,
unsigned char FAR *window,
const char *version,
int stream_size);
#define inflateBack9Init(strm, window) \
inflateBack9Init_((strm), (window), \
ZLIB_VERSION, sizeof(z_stream))
@@ -1,5 +1,5 @@
/* inftree9.c -- generate Huffman trees for efficient decoding
* Copyright (C) 1995-2022 Mark Adler
* Copyright (C) 1995-2024 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/
@@ -9,7 +9,7 @@
#define MAXBITS 15
const char inflate9_copyright[] =
" inflate9 1.2.12 Copyright 1995-2022 Mark Adler ";
" inflate9 1.3.1 Copyright 1995-2024 Mark Adler ";
/*
If you use the zlib library in a product, an acknowledgment is welcome
in the documentation of your product. If for some reason you cannot
@@ -29,14 +29,9 @@ const char inflate9_copyright[] =
table index bits. It will differ if the request is greater than the
longest code or if it is less than the shortest code.
*/
int inflate_table9(type, lens, codes, table, bits, work)
codetype type;
unsigned short FAR *lens;
unsigned codes;
code FAR * FAR *table;
unsigned FAR *bits;
unsigned short FAR *work;
{
int inflate_table9(codetype type, unsigned short FAR *lens, unsigned codes,
code FAR * FAR *table, unsigned FAR *bits,
unsigned short FAR *work) {
unsigned len; /* a code's length in bits */
unsigned sym; /* index of code symbols */
unsigned min, max; /* minimum and maximum code lengths */
@@ -64,7 +59,7 @@ unsigned short FAR *work;
static const unsigned short lext[31] = { /* Length codes 257..285 extra */
128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
133, 133, 133, 133, 144, 199, 202};
133, 133, 133, 133, 144, 203, 77};
static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
@@ -38,11 +38,11 @@ typedef struct {
/* Maximum size of the dynamic table. The maximum number of code structures is
1446, which is the sum of 852 for literal/length codes and 594 for distance
codes. These values were found by exhaustive searches using the program
examples/enough.c found in the zlib distribtution. The arguments to that
examples/enough.c found in the zlib distribution. The arguments to that
program are the number of symbols, the initial root table size, and the
maximum bit length of a code. "enough 286 9 15" for literal/length codes
returns returns 852, and "enough 32 6 15" for distance codes returns 594.
The initial root table size (9 or 6) is found in the fifth argument of the
returns 852, and "enough 32 6 15" for distance codes returns 594. The
initial root table size (9 or 6) is found in the fifth argument of the
inflate_table() calls in infback9.c. If the root table size is changed,
then these maximum sizes would be need to be recalculated and updated. */
#define ENOUGH_LENS 852
@@ -56,6 +56,6 @@ typedef enum {
DISTS
} codetype;
extern int inflate_table9 OF((codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work));
extern int inflate_table9(codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work);
@@ -413,7 +413,7 @@ template<typename T1, typename T2>
class gzomanip2
{
public:
// Allows insertor to peek at internals
// Allows inserter to peek at internals
template <typename Ta, typename Tb>
friend gzofstream&
operator<<(gzofstream&,
@@ -452,7 +452,7 @@ template<typename T1, typename T2>
: func(f), val1(v1), val2(v2)
{ }
// Insertor applies underlying manipulator function to stream
// Inserter applies underlying manipulator function to stream
template<typename T1, typename T2>
inline gzofstream&
operator<<(gzofstream& s, const gzomanip2<T1,T2>& m)
@@ -1,4 +1,4 @@
CC=cc
CC?=cc
CFLAGS := $(CFLAGS) -O -I../..
UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a
@@ -0,0 +1,6 @@
MiniZip 1.1 was derived from MiniZip at version 1.01f
Change in 1.0 (Okt 2009)
- **TODO - Add history**
@@ -1,7 +1,7 @@
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT([minizip], [1.2.12], [bugzilla.redhat.com])
AC_INIT([minizip], [1.3.1], [bugzilla.redhat.com])
AC_CONFIG_SRCDIR([minizip.c])
AM_INIT_AUTOMAKE([foreign])
LT_INIT
@@ -32,8 +32,7 @@
/***********************************************************************
* Return the next byte in the pseudo-random sequence
*/
static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
{
static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
* unpredictable manner on 16-bit systems; not a problem
* with any known compiler so far, though */
@@ -46,8 +45,7 @@ static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
/***********************************************************************
* Update the encryption keys with the next byte of plain text
*/
static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
{
static int update_keys(unsigned long* pkeys, const z_crc_t* pcrc_32_tab, int c) {
(*(pkeys+0)) = CRC32((*(pkeys+0)), c);
(*(pkeys+1)) += (*(pkeys+0)) & 0xff;
(*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
@@ -63,8 +61,7 @@ static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
* Initialize the encryption keys and the random header according to
* the given password.
*/
static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
{
static void init_keys(const char* passwd, unsigned long* pkeys, const z_crc_t* pcrc_32_tab) {
*(pkeys+0) = 305419896L;
*(pkeys+1) = 591751049L;
*(pkeys+2) = 878082192L;
@@ -85,7 +82,7 @@ static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcr
#define RAND_HEAD_LEN 12
/* "last resort" source for second part of crypt seed pattern */
# ifndef ZCR_SEED2
# define ZCR_SEED2 3141592654L /* use PI as default pattern */
# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
# endif
static unsigned crypthead(const char* passwd, /* password string */
@@ -93,8 +90,7 @@ static unsigned crypthead(const char* passwd, /* password string */
int bufSize,
unsigned long* pkeys,
const z_crc_t* pcrc_32_tab,
unsigned long crcForCrypting)
{
unsigned long crcForCrypting) {
unsigned n; /* index in random header */
int t; /* temporary */
int c; /* random byte */
@@ -14,7 +14,7 @@
#define _CRT_SECURE_NO_WARNINGS
#endif
#if defined(__APPLE__) || defined(IOAPI_NO_64)
#if defined(__APPLE__) || defined(IOAPI_NO_64) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64)
// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
#define FTELLO_FUNC(stream) ftello(stream)
@@ -28,8 +28,7 @@
#include "ioapi.h"
voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
{
voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc, const void*filename, int mode) {
if (pfilefunc->zfile_func64.zopen64_file != NULL)
return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
else
@@ -38,8 +37,7 @@ voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename
}
}
long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
{
long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) {
if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
else
@@ -52,8 +50,7 @@ long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZP
}
}
ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
{
ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc, voidpf filestream) {
if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
else
@@ -66,11 +63,9 @@ ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream
}
}
void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
{
void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32, const zlib_filefunc_def* p_filefunc32) {
p_filefunc64_32->zfile_func64.zopen64_file = NULL;
p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
p_filefunc64_32->zfile_func64.ztell64_file = NULL;
@@ -84,19 +79,10 @@ void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filef
static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
{
(void)opaque;
static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char* filename, int mode) {
FILE* file = NULL;
const char* mode_fopen = NULL;
(void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb";
else
@@ -111,11 +97,10 @@ static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, in
return file;
}
static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
{
(void)opaque;
static voidpf ZCALLBACK fopen64_file_func(voidpf opaque, const void* filename, int mode) {
FILE* file = NULL;
const char* mode_fopen = NULL;
(void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb";
else
@@ -131,44 +116,39 @@ static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename,
}
static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
{
(void)opaque;
static uLong ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uLong size) {
uLong ret;
(void)opaque;
ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
{
(void)opaque;
static uLong ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void* buf, uLong size) {
uLong ret;
(void)opaque;
ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
return ret;
}
static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
{
(void)opaque;
static long ZCALLBACK ftell_file_func(voidpf opaque, voidpf stream) {
long ret;
(void)opaque;
ret = ftell((FILE *)stream);
return ret;
}
static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
{
(void)opaque;
static ZPOS64_T ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream) {
ZPOS64_T ret;
(void)opaque;
ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
return ret;
}
static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin)
{
(void)opaque;
static long ZCALLBACK fseek_file_func(voidpf opaque, voidpf stream, uLong offset, int origin) {
int fseek_origin=0;
long ret;
(void)opaque;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
@@ -188,11 +168,10 @@ static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offs
return ret;
}
static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)
{
(void)opaque;
static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) {
int fseek_origin=0;
long ret;
(void)opaque;
switch (origin)
{
case ZLIB_FILEFUNC_SEEK_CUR :
@@ -208,32 +187,28 @@ static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T
}
ret = 0;
if(FSEEKO_FUNC((FILE *)stream, (long)offset, fseek_origin) != 0)
if(FSEEKO_FUNC((FILE *)stream, (z_off64_t)offset, fseek_origin) != 0)
ret = -1;
return ret;
}
static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
{
(void)opaque;
static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream) {
int ret;
(void)opaque;
ret = fclose((FILE *)stream);
return ret;
}
static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
{
(void)opaque;
static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream) {
int ret;
(void)opaque;
ret = ferror((FILE *)stream);
return ret;
}
void fill_fopen_filefunc (pzlib_filefunc_def)
zlib_filefunc_def* pzlib_filefunc_def;
{
void fill_fopen_filefunc(zlib_filefunc_def* pzlib_filefunc_def) {
pzlib_filefunc_def->zopen_file = fopen_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;
@@ -244,8 +219,7 @@ void fill_fopen_filefunc (pzlib_filefunc_def)
pzlib_filefunc_def->opaque = NULL;
}
void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def)
{
void fill_fopen64_filefunc(zlib_filefunc64_def* pzlib_filefunc_def) {
pzlib_filefunc_def->zopen64_file = fopen64_file_func;
pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func;

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