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author | Mike Buland <eichlan@xagasoft.com> | 2012-03-25 20:00:08 +0000 |
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committer | Mike Buland <eichlan@xagasoft.com> | 2012-03-25 20:00:08 +0000 |
commit | 469bbcf0701e1eb8a6670c23145b0da87357e178 (patch) | |
tree | b5b062a16e46a6c5d3410b4e574cd0cc09057211 /src/stable/deflate.h | |
parent | ee1b79396076edc4e30aefb285fada03bb45e80d (diff) | |
download | libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.gz libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.bz2 libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.tar.xz libbu++-469bbcf0701e1eb8a6670c23145b0da87357e178.zip |
Code is all reorganized. We're about ready to release. I should write up a
little explenation of the arrangement.
Diffstat (limited to 'src/stable/deflate.h')
-rw-r--r-- | src/stable/deflate.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/stable/deflate.h b/src/stable/deflate.h new file mode 100644 index 0000000..f835cfc --- /dev/null +++ b/src/stable/deflate.h | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2007-2011 Xagasoft, All rights reserved. | ||
3 | * | ||
4 | * This file is part of the libbu++ library and is released under the | ||
5 | * terms of the license contained in the file LICENSE. | ||
6 | */ | ||
7 | |||
8 | #ifndef BU_DEFLATE_H | ||
9 | #define BU_DEFLATE_H | ||
10 | |||
11 | #include <stdint.h> | ||
12 | |||
13 | #include "bu/filter.h" | ||
14 | |||
15 | namespace Bu | ||
16 | { | ||
17 | /** | ||
18 | * Provides Deflate (LZ77) support via zlib. This provides zlib, raw, and | ||
19 | * gzip stream types. By default it will autodetect the input type and | ||
20 | * encode into a raw deflate stream. | ||
21 | * | ||
22 | *@ingroup Streams | ||
23 | *@ingroup Compression | ||
24 | */ | ||
25 | class Deflate : public Bu::Filter | ||
26 | { | ||
27 | public: | ||
28 | enum Format | ||
29 | { | ||
30 | Raw = 0x01, | ||
31 | Zlib = 0x02, | ||
32 | Gzip = 0x03, | ||
33 | AutoDetect = 0x04, | ||
34 | |||
35 | AutoRaw = 0x04|0x01, | ||
36 | AutoZlib = 0x04|0x02, | ||
37 | AutoGzip = 0x04|0x03 | ||
38 | }; | ||
39 | |||
40 | Deflate( Bu::Stream &rNext, int nCompression=-1, Format eFmt=AutoZlib ); | ||
41 | virtual ~Deflate(); | ||
42 | |||
43 | virtual void start(); | ||
44 | virtual Bu::size stop(); | ||
45 | virtual Bu::size read( void *pBuf, Bu::size nBytes ); | ||
46 | virtual Bu::size write( const void *pBuf, Bu::size nBytes ); | ||
47 | |||
48 | virtual bool isOpen(); | ||
49 | virtual bool isEos(); | ||
50 | |||
51 | Bu::size getCompressedSize(); | ||
52 | |||
53 | private: | ||
54 | void zError( int code ); | ||
55 | void *prState; | ||
56 | bool bReading; | ||
57 | int nCompression; | ||
58 | char *pBuf; | ||
59 | uint32_t nBufSize; | ||
60 | Bu::size sTotalOut; | ||
61 | Format eFmt; | ||
62 | bool bEos; | ||
63 | }; | ||
64 | } | ||
65 | |||
66 | #endif | ||