pngcrush  1.8.13
About: Pngcrush is an optimizer for PNG (Portable Network Graphics) files.
  Fossies Dox: pngcrush-1.8.13.tar.gz  ("inofficial" and yet experimental doxygen-generated source code documentation)  
zutil.h
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1 /* zutil.h -- internal interface and configuration of the compression library
2  * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
3  * For conditions of distribution and use, see copyright notice in zlib.h
4  */
5 
6 /* WARNING: this file should *not* be used by applications. It is
7  part of the implementation of the compression library and is
8  subject to change. Applications should only use zlib.h.
9  */
10 
11 /* @(#) $Id$ */
12 
13 #ifndef ZUTIL_H
14 #define ZUTIL_H
15 
16 #ifdef HAVE_HIDDEN
17 # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
18 #else
19 # define ZLIB_INTERNAL
20 #endif
21 
22 #include "zlib.h"
23 
24 #if defined(STDC) && !defined(Z_SOLO)
25 # if !(defined(_WIN32_WCE) && defined(_MSC_VER))
26 # include <stddef.h>
27 # endif
28 # include <string.h>
29 # include <stdlib.h>
30 #endif
31 
32 #ifdef Z_SOLO
33  typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
34 #endif
35 
36 #ifndef local
37 # define local static
38 #endif
39 /* since "static" is used to mean two completely different things in C, we
40  define "local" for the non-static meaning of "static", for readability
41  (compile with -Dlocal if your debugger can't find static symbols) */
42 
43 typedef unsigned char uch;
44 typedef uch FAR uchf;
45 typedef unsigned short ush;
46 typedef ush FAR ushf;
47 typedef unsigned long ulg;
48 
49 extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
50 /* (size given to avoid silly warnings with Visual C++) */
51 
52 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
53 
54 #define ERR_RETURN(strm,err) \
55  return (strm->msg = ERR_MSG(err), (err))
56 /* To be used only when the state is known to be valid */
57 
58  /* common constants */
59 
60 #ifndef DEF_WBITS
61 # define DEF_WBITS MAX_WBITS
62 #endif
63 /* default windowBits for decompression. MAX_WBITS is for compression only */
64 
65 #if MAX_MEM_LEVEL >= 8
66 # define DEF_MEM_LEVEL 8
67 #else
68 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
69 #endif
70 /* default memLevel */
71 
72 #define STORED_BLOCK 0
73 #define STATIC_TREES 1
74 #define DYN_TREES 2
75 /* The three kinds of block type */
76 
77 #define MIN_MATCH 3
78 #define MAX_MATCH 258
79 /* The minimum and maximum match lengths */
80 
81 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
82 
83  /* target dependencies */
84 
85 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
86 # define OS_CODE 0x00
87 # ifndef Z_SOLO
88 # if defined(__TURBOC__) || defined(__BORLANDC__)
89 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
90  /* Allow compilation with ANSI keywords only enabled */
91  void _Cdecl farfree( void *block );
92  void *_Cdecl farmalloc( unsigned long nbytes );
93 # else
94 # include <alloc.h>
95 # endif
96 # else /* MSC or DJGPP */
97 # include <malloc.h>
98 # endif
99 # endif
100 #endif
101 
102 #ifdef AMIGA
103 # define OS_CODE 1
104 #endif
105 
106 #if defined(VAXC) || defined(VMS)
107 # define OS_CODE 2
108 # define F_OPEN(name, mode) \
109  fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
110 #endif
111 
112 #ifdef __370__
113 # if __TARGET_LIB__ < 0x20000000
114 # define OS_CODE 4
115 # elif __TARGET_LIB__ < 0x40000000
116 # define OS_CODE 11
117 # else
118 # define OS_CODE 8
119 # endif
120 #endif
121 
122 #if defined(ATARI) || defined(atarist)
123 # define OS_CODE 5
124 #endif
125 
126 #ifdef OS2
127 # define OS_CODE 6
128 # if defined(M_I86) && !defined(Z_SOLO)
129 # include <malloc.h>
130 # endif
131 #endif
132 
133 #if defined(MACOS) || defined(TARGET_OS_MAC)
134 # define OS_CODE 7
135 # ifndef Z_SOLO
136 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
137 # include <unix.h> /* for fdopen */
138 # else
139 # ifndef fdopen
140 # define fdopen(fd,mode) NULL /* No fdopen() */
141 # endif
142 # endif
143 # endif
144 #endif
145 
146 #ifdef __acorn
147 # define OS_CODE 13
148 #endif
149 
150 #if defined(WIN32) && !defined(__CYGWIN__)
151 # define OS_CODE 10
152 #endif
153 
154 #ifdef _BEOS_
155 # define OS_CODE 16
156 #endif
157 
158 #ifdef __TOS_OS400__
159 # define OS_CODE 18
160 #endif
161 
162 #ifdef __APPLE__
163 # define OS_CODE 19
164 #endif
165 
166 #if defined(_BEOS_) || defined(RISCOS)
167 # define fdopen(fd,mode) NULL /* No fdopen() */
168 #endif
169 
170 #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
171 # if defined(_WIN32_WCE)
172 # define fdopen(fd,mode) NULL /* No fdopen() */
173 # ifndef _PTRDIFF_T_DEFINED
174  typedef int ptrdiff_t;
175 # define _PTRDIFF_T_DEFINED
176 # endif
177 # else
178 # define fdopen(fd,type) _fdopen(fd,type)
179 # endif
180 #endif
181 
182 #if defined(__BORLANDC__) && !defined(MSDOS)
183  #pragma warn -8004
184  #pragma warn -8008
185  #pragma warn -8066
186 #endif
187 
188 /* provide prototypes for these when building zlib without LFS */
189 #if !defined(_WIN32) && \
190  (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
191  ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
192  ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
193 #endif
194 
195  /* common defaults */
196 
197 #ifndef OS_CODE
198 # define OS_CODE 3 /* assume Unix */
199 #endif
200 
201 #ifndef F_OPEN
202 # define F_OPEN(name, mode) fopen((name), (mode))
203 #endif
204 
205  /* functions */
206 
207 #if defined(pyr) || defined(Z_SOLO)
208 # define NO_MEMCPY
209 #endif
210 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
211  /* Use our own functions for small and medium model with MSC <= 5.0.
212  * You may have to use the same strategy for Borland C (untested).
213  * The __SC__ check is for Symantec.
214  */
215 # define NO_MEMCPY
216 #endif
217 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
218 # define HAVE_MEMCPY
219 #endif
220 #ifdef HAVE_MEMCPY
221 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
222 # define zmemcpy _fmemcpy
223 # define zmemcmp _fmemcmp
224 # define zmemzero(dest, len) _fmemset(dest, 0, len)
225 # else
226 # define zmemcpy memcpy
227 # define zmemcmp memcmp
228 # define zmemzero(dest, len) memset(dest, 0, len)
229 # endif
230 #else
231  void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
232  int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
233  void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
234 #endif
235 
236 /* Diagnostic functions */
237 #ifdef ZLIB_DEBUG
238 # include <stdio.h>
239  extern int ZLIB_INTERNAL z_verbose;
240  extern void ZLIB_INTERNAL z_error OF((char *m));
241 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
242 # define Trace(x) {if (z_verbose>=0) fprintf x ;}
243 # define Tracev(x) {if (z_verbose>0) fprintf x ;}
244 # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
245 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
246 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
247 #else
248 # define Assert(cond,msg)
249 # define Trace(x)
250 # define Tracev(x)
251 # define Tracevv(x)
252 # define Tracec(c,x)
253 # define Tracecv(c,x)
254 #endif
255 
256 #ifndef Z_SOLO
257  voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
258  unsigned size));
259  void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
260 #endif
261 
262 #define ZALLOC(strm, items, size) \
263  (*((strm)->zalloc))((strm)->opaque, (items), (size))
264 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
265 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
266 
267 /* Reverse the bytes in a 32-bit value */
268 #define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
269  (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
270 
271 #endif /* ZUTIL_H */
ZEXTERN
#define ZEXTERN
Definition: zconf.h:377
uch
unsigned char uch
Definition: zutil.h:43
zcalloc
voidpf zcalloc()
uLong
unsigned long uLong
Definition: zconf.h:394
z_errmsg
char * z_errmsg[10]
Definition: zutil.c:13
zmemcmp
int zmemcmp()
adler32_combine64
uLong adler32_combine64()
z_off_t
#define z_off_t
Definition: zconf.h:504
zmemcpy
void zmemcpy()
OF
#define OF(args)
Definition: zconf.h:292
z_const
#define z_const
Definition: zconf.h:237
ush
unsigned short ush
Definition: zutil.h:45
zcfree
void zcfree()
ushf
ush ushf
Definition: zutil.h:46
FAR
#define FAR
Definition: zconf.h:387
voidpf
Byte * voidpf
Definition: zconf.h:413
uchf
uch uchf
Definition: zutil.h:44
crc32_combine64
uLong crc32_combine64()
zmemzero
void zmemzero()
ZEXPORT
#define ZEXPORT
Definition: zconf.h:380
ZLIB_INTERNAL
#define ZLIB_INTERNAL
Definition: zutil.h:19
uInt
unsigned int uInt
Definition: zconf.h:393
Bytef
Byte Bytef
Definition: zconf.h:400
ulg
unsigned long ulg
Definition: zutil.h:47
zlib.h