svn-gvsig-desktop / tags / v1_1_1_Build_1016 / libraries / libjni-ecw / include / NCSJPC.h @ 33925
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1 | 3538 | nacho | /********************************************************
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2 | ** Copyright 2002 Earth Resource Mapping Ltd.
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3 | ** This document contains proprietary source code of
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4 | ** Earth Resource Mapping Ltd, and can only be used under
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5 | ** one of the three licenses as described in the
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6 | ** license.txt file supplied with this distribution.
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7 | ** See separate license.txt file for license details
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8 | ** and conditions.
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9 | **
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10 | ** This software is covered by US patent #6,442,298,
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11 | ** #6,102,897 and #6,633,688. Rights to use these patents
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12 | ** is included in the license agreements.
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13 | **
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14 | ** FILE: $Archive: /NCS/Source/include/NCSJPC.h $
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15 | ** CREATED: 05/12/2002 3:27:34 PM
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16 | ** AUTHOR: Simon Cope
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17 | ** PURPOSE: CNCSJPC class header
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18 | ** EDITS: [xx] ddMmmyy NAME COMMENTS
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19 | *******************************************************/
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20 | |||
21 | #ifndef NCSJPC_H
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22 | #define NCSJPC_H
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23 | |||
24 | #ifndef NCSJPCMAINHEADER_H
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25 | #include "NCSJPCMainHeader.h" |
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26 | #endif // NCSJPCMAINHEADER_H |
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27 | #ifndef NCSJPCTILEPARTHEADER_H
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28 | #include "NCSJPCTilePartHeader.h" |
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29 | #endif // NCSJPCTILEPARTHEADER_H |
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30 | |||
31 | #include <map> |
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32 | |||
33 | /**
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34 | * CNCSJPC class - the JPC codestream class.
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35 | *
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36 | * @author Simon Cope
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37 | * @version $Revision$ $Author$ $Date$
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38 | */
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39 | class NCSJPC_EXPORT_ALL CNCSJPC: public CNCSJPCMainHeader { |
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40 | public:
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41 | typedef enum { |
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42 | /** Profile 0 */
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43 | BASELINE_0 = 0,
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44 | /** Profile 1 */
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45 | BASELINE_1 = 1,
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46 | /** Profile 2 - unrestricted */
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47 | BASELINE_2 = 2,
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48 | /** NITF NPJE profile */
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49 | NITF_BIIF_NPJE = 3,
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50 | /** NITF EPJE Profile */
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51 | NITF_BIIF_EPJE = 4
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52 | } Profile; |
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53 | |||
54 | /** Pointer to IO Stream instance for this codestream */
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55 | CNCSJPCIOStream *m_pStream; |
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56 | /** Tile Parts */
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57 | std::map<UINT32, CNCSJPCTilePartHeader *> m_TileParts; |
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58 | /** Current Tile-Part being decoded */
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59 | CNCSJPCTilePartHeader *m_pCurrentTilePart; |
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60 | /** Next tilepart index */
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61 | UINT32 m_nNextZtp; |
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62 | |||
63 | /** performing low-memory compression */
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64 | bool m_bLowMemCompression;
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65 | /** Reconstruction parameter */
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66 | IEEE4 m_fReconstructionParameter; |
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67 | |||
68 | /** Default constructor, initialises members */
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69 | CNCSJPC(); |
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70 | /** Virtual destructor */
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71 | virtual ~CNCSJPC(); |
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72 | |||
73 | /**
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74 | * Parse the JPC codestream.
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75 | * @param Stream IOStream to use to parse file.
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76 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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77 | */
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78 | virtual CNCSError Parse(CNCSJPCIOStream &Stream); |
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79 | /**
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80 | * UnParse the JPC codestream.
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81 | * @param Stream IOStream to use to parse file.
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82 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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83 | */
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84 | virtual CNCSError UnParse(CNCSJPCIOStream &Stream); |
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85 | |||
86 | /**
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87 | * Get the Tile from the index and part index
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88 | * @param INT32 Tile Index, >= 0, -1 == current tile main tile header
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89 | * @param INT32 Tile Part Index, >= 0
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90 | * @return CNCSJPCTilePartHeader* Pointer to tile part
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91 | */
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92 | CNCSJPCTilePartHeader *GetTile(INT32 iIndex = -1, INT32 iPart = 0); |
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93 | /**
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94 | * Get length of a packet in the file.
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95 | * @param nPacket Absolute Packet number to determine length for
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96 | * @return UINT32 Packet length or 0 on failure.
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97 | */
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98 | UINT32 GetPacketLength(UINT32 nPacket); |
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99 | /**
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100 | * Read a packet from the file.
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101 | * @param nPacket Absolute Packet number to determine length for
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102 | * @param pLength Returned length of packet (header+data)
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103 | * @return void * NCSMalloc()'d pointer to read packet (header+data).
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104 | */
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105 | void *GetPacket(UINT32 nPacket, UINT32 *pLength);
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106 | /**
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107 | * Get packet header for the specified absolute packet index.
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108 | * @param nPacket Absolute Packet number
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109 | * @return class CNCSJPCPacket* Packet header
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110 | */
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111 | class CNCSJPCPacket *GetPacketHeader(UINT32 nPacket); |
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112 | /**
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113 | * Fnid the RCPL for the specified packet index
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114 | * @param nPacket Absolute Packet number
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115 | * @param nTile Tile index
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116 | * @param nResolution Resolution number
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117 | * @param nComponent Component index
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118 | * @param nPrecinctX Precinct X index
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119 | * @param nPrecinctY Precinct Y index
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120 | * @param nLayer Quality Layer
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121 | * @return bool true, or false on failure
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122 | */
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123 | bool FindPacketRCPL(UINT32 nPacket, UINT16 &nTile, UINT8 &nResolution, UINT16 &nComponent, UINT32 &nPrecinctX, UINT32 &nPrecinctY, UINT16 &nLayer);
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124 | private:
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125 | }; |
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126 | |||
127 | #endif // !NCSJPC_H |