Build unbzip2.sys as export driver, instead of unbzip2.dll
[reactos.git] / reactos / drivers / lib / bzip2 / bzlib.h
1
2 /*-------------------------------------------------------------*/
3 /*--- Public header file for the library. ---*/
4 /*--- bzlib.h ---*/
5 /*-------------------------------------------------------------*/
6
7 /*--
8 This file is a part of bzip2 and/or libbzip2, a program and
9 library for lossless, block-sorting data compression.
10
11 Copyright (C) 1996-2000 Julian R Seward. All rights reserved.
12
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions
15 are met:
16
17 1. Redistributions of source code must retain the above copyright
18 notice, this list of conditions and the following disclaimer.
19
20 2. The origin of this software must not be misrepresented; you must
21 not claim that you wrote the original software. If you use this
22 software in a product, an acknowledgment in the product
23 documentation would be appreciated but is not required.
24
25 3. Altered source versions must be plainly marked as such, and must
26 not be misrepresented as being the original software.
27
28 4. The name of the author may not be used to endorse or promote
29 products derived from this software without specific prior written
30 permission.
31
32 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
33 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
34 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
36 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
38 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
39 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
40 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
41 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
42 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43
44 Julian Seward, Cambridge, UK.
45 jseward@acm.org
46 bzip2/libbzip2 version 1.0 of 21 March 2000
47
48 This program is based on (at least) the work of:
49 Mike Burrows
50 David Wheeler
51 Peter Fenwick
52 Alistair Moffat
53 Radford Neal
54 Ian H. Witten
55 Robert Sedgewick
56 Jon L. Bentley
57
58 For more information on these sources, see the manual.
59 --*/
60
61
62 #ifndef _BZLIB_H
63 #define _BZLIB_H
64
65 #ifdef __cplusplus
66 extern "C" {
67 #endif
68
69 #define BZ_RUN 0
70 #define BZ_FLUSH 1
71 #define BZ_FINISH 2
72
73 #define BZ_OK 0
74 #define BZ_RUN_OK 1
75 #define BZ_FLUSH_OK 2
76 #define BZ_FINISH_OK 3
77 #define BZ_STREAM_END 4
78 #define BZ_SEQUENCE_ERROR (-1)
79 #define BZ_PARAM_ERROR (-2)
80 #define BZ_MEM_ERROR (-3)
81 #define BZ_DATA_ERROR (-4)
82 #define BZ_DATA_ERROR_MAGIC (-5)
83 #define BZ_IO_ERROR (-6)
84 #define BZ_UNEXPECTED_EOF (-7)
85 #define BZ_OUTBUFF_FULL (-8)
86 #define BZ_CONFIG_ERROR (-9)
87
88 typedef
89 struct {
90 char *next_in;
91 unsigned int avail_in;
92 unsigned int total_in_lo32;
93 unsigned int total_in_hi32;
94
95 char *next_out;
96 unsigned int avail_out;
97 unsigned int total_out_lo32;
98 unsigned int total_out_hi32;
99
100 void *state;
101
102 void *(*bzalloc)(void *,int,int);
103 void (*bzfree)(void *,void *);
104 void *opaque;
105 }
106 bz_stream;
107
108
109 #ifndef BZ_IMPORT
110 #define BZ_EXPORT
111 #endif
112
113 #ifdef _WIN32
114 # include <stdio.h>
115 # include <windows.h>
116 # ifdef small
117 /* windows.h define small to char */
118 # undef small
119 # endif
120 # ifdef BZ_EXPORT
121 # define BZ_API(func) WINAPI func
122 # define BZ_EXTERN extern
123 # else
124 /* import windows dll dynamically */
125 # define BZ_API(func) (WINAPI * func)
126 # define BZ_EXTERN
127 # endif
128 #else
129 # define BZ_API(func) func
130 # define BZ_EXTERN extern
131 #endif
132
133
134 /*-- Core (low-level) library functions --*/
135
136 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
137 bz_stream* strm,
138 int blockSize100k,
139 int verbosity,
140 int workFactor
141 );
142
143 BZ_EXTERN int BZ_API(BZ2_bzCompress) (
144 bz_stream* strm,
145 int action
146 );
147
148 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
149 bz_stream* strm
150 );
151
152 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
153 bz_stream *strm,
154 int verbosity,
155 int small
156 );
157
158 BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
159 bz_stream* strm
160 );
161
162 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
163 bz_stream *strm
164 );
165
166
167
168 /*-- High(er) level library functions --*/
169
170 #ifndef BZ_NO_STDIO
171 #define BZ_MAX_UNUSED 5000
172
173 typedef void BZFILE;
174
175 BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
176 int* bzerror,
177 FILE* f,
178 int verbosity,
179 int small,
180 void* unused,
181 int nUnused
182 );
183
184 BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
185 int* bzerror,
186 BZFILE* b
187 );
188
189 BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
190 int* bzerror,
191 BZFILE* b,
192 void** unused,
193 int* nUnused
194 );
195
196 BZ_EXTERN int BZ_API(BZ2_bzRead) (
197 int* bzerror,
198 BZFILE* b,
199 void* buf,
200 int len
201 );
202
203 BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
204 int* bzerror,
205 FILE* f,
206 int blockSize100k,
207 int verbosity,
208 int workFactor
209 );
210
211 BZ_EXTERN void BZ_API(BZ2_bzWrite) (
212 int* bzerror,
213 BZFILE* b,
214 void* buf,
215 int len
216 );
217
218 BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
219 int* bzerror,
220 BZFILE* b,
221 int abandon,
222 unsigned int* nbytes_in,
223 unsigned int* nbytes_out
224 );
225
226 BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
227 int* bzerror,
228 BZFILE* b,
229 int abandon,
230 unsigned int* nbytes_in_lo32,
231 unsigned int* nbytes_in_hi32,
232 unsigned int* nbytes_out_lo32,
233 unsigned int* nbytes_out_hi32
234 );
235 #endif
236
237
238 /*-- Utility functions --*/
239
240 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
241 char* dest,
242 unsigned int* destLen,
243 char* source,
244 unsigned int sourceLen,
245 int blockSize100k,
246 int verbosity,
247 int workFactor
248 );
249
250 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
251 char* dest,
252 unsigned int* destLen,
253 char* source,
254 unsigned int sourceLen,
255 int small,
256 int verbosity
257 );
258
259
260 /*--
261 Code contributed by Yoshioka Tsuneo
262 (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
263 to support better zlib compatibility.
264 This code is not _officially_ part of libbzip2 (yet);
265 I haven't tested it, documented it, or considered the
266 threading-safeness of it.
267 If this code breaks, please contact both Yoshioka and me.
268 --*/
269
270 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
271 void
272 );
273
274 #ifndef BZ_NO_STDIO
275 BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
276 const char *path,
277 const char *mode
278 );
279
280 BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
281 int fd,
282 const char *mode
283 );
284
285 BZ_EXTERN int BZ_API(BZ2_bzread) (
286 BZFILE* b,
287 void* buf,
288 int len
289 );
290
291 BZ_EXTERN int BZ_API(BZ2_bzwrite) (
292 BZFILE* b,
293 void* buf,
294 int len
295 );
296
297 BZ_EXTERN int BZ_API(BZ2_bzflush) (
298 BZFILE* b
299 );
300
301 BZ_EXTERN void BZ_API(BZ2_bzclose) (
302 BZFILE* b
303 );
304
305 BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
306 BZFILE *b,
307 int *errnum
308 );
309 #endif
310
311 extern _stdcall void *(*BZ2_malloc)( unsigned long size );
312 extern _stdcall void (*BZ2_free)( void *ptr );
313 _stdcall void BZ2_set_malloc_free( _stdcall void *(*malloc)(unsigned long size), _stdcall void (*free)(void *ptr) );
314
315 #ifdef __cplusplus
316 }
317 #endif
318
319 #endif
320
321 /*-------------------------------------------------------------*/
322 /*--- end bzlib.h ---*/
323 /*-------------------------------------------------------------*/