1 : /******************************************************************************
2 : *
3 : * Purpose: Implementation of the EDB interface that works only for
4 : * links to another PCIDSK database. This is mostly useful
5 : * for testing - practical use is minimal.
6 : *
7 : ******************************************************************************
8 : * Copyright (c) 2010
9 : * PCI Geomatics, 50 West Wilmot Street, Richmond Hill, Ont, Canada
10 : *
11 : * Permission is hereby granted, free of charge, to any person obtaining a
12 : * copy of this software and associated documentation files (the "Software"),
13 : * to deal in the Software without restriction, including without limitation
14 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 : * and/or sell copies of the Software, and to permit persons to whom the
16 : * Software is furnished to do so, subject to the following conditions:
17 : *
18 : * The above copyright notice and this permission notice shall be included
19 : * in all copies or substantial portions of the Software.
20 : *
21 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 : * DEALINGS IN THE SOFTWARE.
28 : ****************************************************************************/
29 :
30 : #include "pcidsk_config.h"
31 : #include "pcidsk_types.h"
32 : #include "core/pcidsk_utils.h"
33 : #include "pcidsk_exception.h"
34 : #include "pcidsk_edb.h"
35 : #include "pcidsk.h"
36 : #include <cassert>
37 : #include <cstdio>
38 :
39 : using namespace PCIDSK;
40 :
41 : /************************************************************************/
42 : /* ==================================================================== */
43 : /* PCIDSK_EDBFile */
44 : /* ==================================================================== */
45 : /************************************************************************/
46 :
47 : class PCIDSK_EDBFile : public EDBFile
48 : {
49 : mutable PCIDSKFile *file;
50 :
51 : public:
52 :
53 0 : PCIDSK_EDBFile( PCIDSKFile *file_in ) { file = file_in; }
54 0 : ~PCIDSK_EDBFile() { Close(); }
55 :
56 : int Close() const;
57 : int GetWidth() const;
58 : int GetHeight() const;
59 : int GetChannels() const;
60 : int GetBlockWidth(int channel ) const;
61 : int GetBlockHeight(int channel ) const;
62 : eChanType GetType(int channel ) const;
63 : int ReadBlock(int channel,
64 : int block_index, void *buffer,
65 : int win_xoff, int win_yoff,
66 : int win_xsize, int win_ysize );
67 : int WriteBlock( int channel, int block_index, void *buffer);
68 : };
69 :
70 : /************************************************************************/
71 : /* DefaultOpenEDB() */
72 : /************************************************************************/
73 :
74 0 : EDBFile *PCIDSK::DefaultOpenEDB( std::string filename, std::string access )
75 :
76 : {
77 : // it would be nice to be able to pass in an appropriate PCIDSKInterface!
78 :
79 0 : PCIDSKFile *file = PCIDSK::Open( filename, access, NULL );
80 :
81 0 : return new PCIDSK_EDBFile( file );
82 : }
83 :
84 : /************************************************************************/
85 : /* Close() */
86 : /************************************************************************/
87 :
88 0 : int PCIDSK_EDBFile::Close() const
89 :
90 : {
91 0 : if( file != NULL )
92 : {
93 0 : delete file;
94 0 : file = NULL;
95 : }
96 :
97 0 : return 1;
98 : }
99 :
100 : /************************************************************************/
101 : /* GetWidth() */
102 : /************************************************************************/
103 :
104 0 : int PCIDSK_EDBFile::GetWidth() const
105 :
106 : {
107 0 : return file->GetWidth();
108 : }
109 :
110 : /************************************************************************/
111 : /* GetHeight() */
112 : /************************************************************************/
113 :
114 0 : int PCIDSK_EDBFile::GetHeight() const
115 :
116 : {
117 0 : return file->GetHeight();
118 : }
119 :
120 : /************************************************************************/
121 : /* GetChannels() */
122 : /************************************************************************/
123 :
124 0 : int PCIDSK_EDBFile::GetChannels() const
125 :
126 : {
127 0 : return file->GetChannels();
128 : }
129 :
130 : /************************************************************************/
131 : /* GetBlockWidth() */
132 : /************************************************************************/
133 :
134 0 : int PCIDSK_EDBFile::GetBlockWidth( int channel ) const
135 :
136 : {
137 0 : return file->GetChannel(channel)->GetBlockWidth();
138 : }
139 :
140 : /************************************************************************/
141 : /* GetBlockHeight() */
142 : /************************************************************************/
143 :
144 0 : int PCIDSK_EDBFile::GetBlockHeight( int channel ) const
145 :
146 : {
147 0 : return file->GetChannel(channel)->GetBlockHeight();
148 : }
149 :
150 : /************************************************************************/
151 : /* GetType() */
152 : /************************************************************************/
153 :
154 0 : eChanType PCIDSK_EDBFile::GetType( int channel ) const
155 : {
156 0 : return file->GetChannel(channel)->GetType();
157 : }
158 :
159 : /************************************************************************/
160 : /* ReadBlock() */
161 : /************************************************************************/
162 :
163 : int PCIDSK_EDBFile::ReadBlock( int channel,
164 : int block_index, void *buffer,
165 : int win_xoff, int win_yoff,
166 0 : int win_xsize, int win_ysize )
167 :
168 : {
169 : return
170 : file->GetChannel(channel)->ReadBlock( block_index, buffer,
171 : win_xoff, win_yoff,
172 0 : win_xsize, win_ysize );
173 : }
174 :
175 : /************************************************************************/
176 : /* WriteBlock() */
177 : /************************************************************************/
178 :
179 0 : int PCIDSK_EDBFile::WriteBlock( int channel, int block_index, void *buffer)
180 :
181 : {
182 0 : return file->GetChannel(channel)->WriteBlock( block_index, buffer );
183 : }
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