/[pcsx2_0.9.7]/branch/r3113_0.9.7_beta/3rdparty/wxWidgets/include/wx/zstream.h
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Contents of /branch/r3113_0.9.7_beta/3rdparty/wxWidgets/include/wx/zstream.h

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Revision 32 - (show annotations) (download)
Tue Sep 7 03:29:01 2010 UTC (9 years, 5 months ago) by william
File MIME type: text/plain
File size: 4325 byte(s)
branching from upstream revision (http://pcsx2.googlecode.com/svn/trunk
): r3113 to
https://svn.netsolutions.dnsalias.com/websvn/ps2/pcsx2/pcsx2_0.9.7/branch/r3113_0.9.7_beta
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/zstream.h
3 // Purpose: Memory stream classes
4 // Author: Guilhem Lavaux
5 // Modified by: Mike Wetherell
6 // Created: 11/07/98
7 // RCS-ID: $Id: zstream.h 54688 2008-07-18 08:06:44Z MW $
8 // Copyright: (c) Guilhem Lavaux
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11 #ifndef _WX_WXZSTREAM_H__
12 #define _WX_WXZSTREAM_H__
13
14 #include "wx/defs.h"
15
16 #if wxUSE_ZLIB && wxUSE_STREAMS
17
18 #include "wx/stream.h"
19
20 // Compression level
21 enum {
22 wxZ_DEFAULT_COMPRESSION = -1,
23 wxZ_NO_COMPRESSION = 0,
24 wxZ_BEST_SPEED = 1,
25 wxZ_BEST_COMPRESSION = 9
26 };
27
28 // Flags
29 enum {
30 #if WXWIN_COMPATIBILITY_2_4
31 wxZLIB_24COMPATIBLE = 4, // read v2.4.x data without error
32 #endif
33 wxZLIB_NO_HEADER = 0, // raw deflate stream, no header or checksum
34 wxZLIB_ZLIB = 1, // zlib header and checksum
35 wxZLIB_GZIP = 2, // gzip header and checksum, requires zlib 1.2.1+
36 wxZLIB_AUTO = 3 // autodetect header zlib or gzip
37 };
38
39 class WXDLLIMPEXP_BASE wxZlibInputStream: public wxFilterInputStream {
40 public:
41 wxZlibInputStream(wxInputStream& stream, int flags = wxZLIB_AUTO);
42 wxZlibInputStream(wxInputStream *stream, int flags = wxZLIB_AUTO);
43 virtual ~wxZlibInputStream();
44
45 char Peek() { return wxInputStream::Peek(); }
46 wxFileOffset GetLength() const { return wxInputStream::GetLength(); }
47
48 static bool CanHandleGZip();
49
50 protected:
51 size_t OnSysRead(void *buffer, size_t size);
52 wxFileOffset OnSysTell() const { return m_pos; }
53
54 private:
55 void Init(int flags);
56
57 protected:
58 size_t m_z_size;
59 unsigned char *m_z_buffer;
60 struct z_stream_s *m_inflate;
61 wxFileOffset m_pos;
62 #if WXWIN_COMPATIBILITY_2_4
63 bool m_24compatibilty;
64 #endif
65
66 DECLARE_NO_COPY_CLASS(wxZlibInputStream)
67 };
68
69 class WXDLLIMPEXP_BASE wxZlibOutputStream: public wxFilterOutputStream {
70 public:
71 wxZlibOutputStream(wxOutputStream& stream, int level = -1, int flags = wxZLIB_ZLIB);
72 wxZlibOutputStream(wxOutputStream *stream, int level = -1, int flags = wxZLIB_ZLIB);
73 virtual ~wxZlibOutputStream() { Close(); }
74
75 void Sync() { DoFlush(false); }
76 bool Close();
77 wxFileOffset GetLength() const { return m_pos; }
78
79 static bool CanHandleGZip();
80
81 protected:
82 size_t OnSysWrite(const void *buffer, size_t size);
83 wxFileOffset OnSysTell() const { return m_pos; }
84
85 virtual void DoFlush(bool final);
86
87 private:
88 void Init(int level, int flags);
89
90 protected:
91 size_t m_z_size;
92 unsigned char *m_z_buffer;
93 struct z_stream_s *m_deflate;
94 wxFileOffset m_pos;
95
96 DECLARE_NO_COPY_CLASS(wxZlibOutputStream)
97 };
98
99 class WXDLLIMPEXP_BASE wxZlibClassFactory: public wxFilterClassFactory
100 {
101 public:
102 wxZlibClassFactory();
103
104 wxFilterInputStream *NewStream(wxInputStream& stream) const
105 { return new wxZlibInputStream(stream); }
106 wxFilterOutputStream *NewStream(wxOutputStream& stream) const
107 { return new wxZlibOutputStream(stream, -1); }
108 wxFilterInputStream *NewStream(wxInputStream *stream) const
109 { return new wxZlibInputStream(stream); }
110 wxFilterOutputStream *NewStream(wxOutputStream *stream) const
111 { return new wxZlibOutputStream(stream, -1); }
112
113 const wxChar * const *GetProtocols(wxStreamProtocolType type
114 = wxSTREAM_PROTOCOL) const;
115
116 private:
117 DECLARE_DYNAMIC_CLASS(wxZlibClassFactory)
118 };
119
120 class WXDLLIMPEXP_BASE wxGzipClassFactory: public wxFilterClassFactory
121 {
122 public:
123 wxGzipClassFactory();
124
125 wxFilterInputStream *NewStream(wxInputStream& stream) const
126 { return new wxZlibInputStream(stream); }
127 wxFilterOutputStream *NewStream(wxOutputStream& stream) const
128 { return new wxZlibOutputStream(stream, -1, wxZLIB_GZIP); }
129 wxFilterInputStream *NewStream(wxInputStream *stream) const
130 { return new wxZlibInputStream(stream); }
131 wxFilterOutputStream *NewStream(wxOutputStream *stream) const
132 { return new wxZlibOutputStream(stream, -1, wxZLIB_GZIP); }
133
134 const wxChar * const *GetProtocols(wxStreamProtocolType type
135 = wxSTREAM_PROTOCOL) const;
136
137 private:
138 DECLARE_DYNAMIC_CLASS(wxGzipClassFactory)
139 };
140
141 #endif
142 // wxUSE_ZLIB && wxUSE_STREAMS
143
144 #endif
145 // _WX_WXZSTREAM_H__
146

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