svn-gvsig-desktop / trunk / libraries / libjni-readecw-linux / include / NCSJPCProgression.h @ 1458
History | View | Annotate | Download (4.29 KB)
1 |
/********************************************************
|
---|---|
2 |
** Copyright 2002 Earth Resource Mapping Ltd.
|
3 |
** This document contains proprietary source code of
|
4 |
** Earth Resource Mapping Ltd, and can only be used under
|
5 |
** one of the three licenses as described in the
|
6 |
** license.txt file supplied with this distribution.
|
7 |
** See separate license.txt file for license details
|
8 |
** and conditions.
|
9 |
**
|
10 |
** This software is covered by US patent #6,442,298,
|
11 |
** #6,102,897 and #6,633,688. Rights to use these patents
|
12 |
** is included in the license agreements.
|
13 |
**
|
14 |
** FILE: $Archive: /NCS/Source/include/NCSJPCProgression.h $
|
15 |
** CREATED: 13/12/2002 3:27:34 PM
|
16 |
** AUTHOR: Simon Cope
|
17 |
** PURPOSE: CNCSJPCProgression class header
|
18 |
** EDITS: [xx] ddMmmyy NAME COMMENTS
|
19 |
*******************************************************/
|
20 |
|
21 |
#ifndef NCSJPCPROGRESSION_H
|
22 |
#define NCSJPCPROGRESSION_H
|
23 |
|
24 |
#include "NCSDefs.h" |
25 |
#include "NCSJPCTypes.h" |
26 |
#include "NCSJPCPOCMarker.h" |
27 |
|
28 |
/**
|
29 |
* CNCSJPCProgression class - Implements JPC progressions.
|
30 |
*
|
31 |
* @author Simon Cope
|
32 |
* @version $Revision: 1458 $ $Author: igbrotru $ $Date: 2005-02-15 08:52:16 +0100 (Tue, 15 Feb 2005) $
|
33 |
*/
|
34 |
class NCSJPC_EXPORT_ALL CNCSJPCProgression { |
35 |
public:
|
36 |
/** Current Layer being decoded */
|
37 |
UINT16 m_nCurTile; |
38 |
/** Current Layer being decoded */
|
39 |
UINT16 m_nCurLayer; |
40 |
/** Current Resolution being decoded */
|
41 |
UINT8 m_nCurResolution; |
42 |
/** Current Component being decoded */
|
43 |
UINT16 m_nCurComponent; |
44 |
/** Current Precinct X being decoded */
|
45 |
UINT32 m_nCurPrecinctX; |
46 |
/** Current Precinct Y being decoded */
|
47 |
UINT32 m_nCurPrecinctY; |
48 |
/** Current Packet Number */
|
49 |
NCSJPCPacketId m_nCurPacket; |
50 |
/** Current TX being decoded */
|
51 |
INT32 m_nCurTX; |
52 |
/** Current TY being decoded */
|
53 |
INT32 m_nCurTY; |
54 |
/** Current TX increment amount */
|
55 |
INT32 m_nIncTX; |
56 |
/** Current TY increment amount */
|
57 |
INT32 m_nIncTY; |
58 |
|
59 |
/** Default constructor, initialises members */
|
60 |
CNCSJPCProgression(); |
61 |
/** Virtual destructor */
|
62 |
virtual ~CNCSJPCProgression(); |
63 |
|
64 |
/**
|
65 |
* Get the current POC marker PO if present.
|
66 |
* @return CNCSJPCPOCMarker::ProgressionOrder Current PO.
|
67 |
*/
|
68 |
CNCSJPCPOCMarker::ProgressionOrder *CurrentPO(class CNCSJPCTilePartHeader *pMainTP); |
69 |
/**
|
70 |
* Increment the current POC marker PO if present and current PO is complete.
|
71 |
* @param bComplete Flag indicating if current PO is complete
|
72 |
* @return CNCSError NCS_SUCCESS or error on failure.
|
73 |
*/
|
74 |
CNCSError IncrementPO(CNCSJPCTilePartHeader *pMainTP, bool &bComplete);
|
75 |
|
76 |
/**
|
77 |
* Start the progression order from the beginning.
|
78 |
* @return CNCSError NCS_SUCCESS, or Error code on failure.
|
79 |
*/
|
80 |
virtual CNCSError Start(CNCSJPCTilePartHeader *pMainTP); |
81 |
virtual CNCSError Start(CNCSJPCTilePartHeader *pMainTP, INT32 nComponent, INT32 nResolution); |
82 |
|
83 |
/**
|
84 |
* Increment the progression order from the current location, parsing packet headers in the process.
|
85 |
* @param pData Data for Step function
|
86 |
* @param bComplete Progression order is complete.
|
87 |
* @return CNCSError NCS_SUCCESS, or Error code on failure.
|
88 |
*/
|
89 |
virtual CNCSError Iterate(CNCSJPCTilePartHeader *pMainTP, void *pData, bool &bComplete); |
90 |
|
91 |
/**
|
92 |
* Perform the "Step" for this progression.
|
93 |
* @return bool true, or false on error & m_Error is set to actual error code.
|
94 |
*/
|
95 |
virtual bool Step(class CNCSJPCComponent *pComponent,
|
96 |
class CNCSJPCResolution *pResolution, |
97 |
class CNCSJPCPrecinct *pPrecinct); |
98 |
/**
|
99 |
* Perform the "StepRow" for this progression.
|
100 |
* The progression stepper can return true here to skip the entire row
|
101 |
*
|
102 |
* @return bool true, or false on row not skipped.
|
103 |
*/
|
104 |
virtual bool StepRow(class CNCSJPCComponent *pComponent,
|
105 |
class CNCSJPCResolution *pResolution); |
106 |
|
107 |
/**
|
108 |
* Calculate the Precinct 'k' X from the current progression
|
109 |
* @return INT32 Precinct 'k' X
|
110 |
*/
|
111 |
UINT32 CalculatePrecinctX(CNCSJPCTilePartHeader *pMainTP, class CNCSJPCComponent *pComponent, class CNCSJPCResolution *pResolution); |
112 |
/**
|
113 |
* Calculate the Precinct 'k' Y from the current progression
|
114 |
* @return INT32 Precinct 'k' Y
|
115 |
*/
|
116 |
UINT32 CalculatePrecinctY(CNCSJPCTilePartHeader *pMainTP, class CNCSJPCComponent *pComponent, class CNCSJPCResolution *pResolution); |
117 |
protected:
|
118 |
// Data for step function
|
119 |
void *m_pData;
|
120 |
// Progression order is complete
|
121 |
bool m_bDone;
|
122 |
// Error code when Step() returns false
|
123 |
CNCSError m_Error; |
124 |
}; |
125 |
|
126 |
|
127 |
|
128 |
#endif // !NCSJPCPROGRESSION_H |