svn-gvsig-desktop / tags / v1_2_Build_1208 / libraries / libjni-ecw / include / NCSJPCProgression.h @ 33914
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/********************************************************
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** Copyright 2002 Earth Resource Mapping Ltd.
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** This document contains proprietary source code of
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** Earth Resource Mapping Ltd, and can only be used under
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** one of the three licenses as described in the
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** license.txt file supplied with this distribution.
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** See separate license.txt file for license details
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** and conditions.
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**
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** This software is covered by US patent #6,442,298,
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** #6,102,897 and #6,633,688. Rights to use these patents
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** is included in the license agreements.
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**
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** FILE: $Archive: /NCS/Source/include/NCSJPCProgression.h $
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** CREATED: 13/12/2002 3:27:34 PM
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** AUTHOR: Simon Cope
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** PURPOSE: CNCSJPCProgression class header
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** EDITS: [xx] ddMmmyy NAME COMMENTS
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*******************************************************/
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#ifndef NCSJPCPROGRESSION_H
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#define NCSJPCPROGRESSION_H
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#include "NCSDefs.h" |
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#include "NCSJPCTypes.h" |
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#include "NCSJPCPOCMarker.h" |
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/**
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* CNCSJPCProgression class - Implements JPC progressions.
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*
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* @author Simon Cope
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* @version $Revision: 3538 $ $Author: nacho $ $Date: 2006-01-09 12:56:54 +0100 (Mon, 09 Jan 2006) $
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*/
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class NCSJPC_EXPORT_ALL CNCSJPCProgression { |
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public:
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/** Current Layer being decoded */
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UINT16 m_nCurTile; |
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/** Current Layer being decoded */
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UINT16 m_nCurLayer; |
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/** Current Resolution being decoded */
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UINT8 m_nCurResolution; |
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/** Current Component being decoded */
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UINT16 m_nCurComponent; |
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/** Current Precinct X being decoded */
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UINT32 m_nCurPrecinctX; |
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/** Current Precinct Y being decoded */
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UINT32 m_nCurPrecinctY; |
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/** Current Packet Number */
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NCSJPCPacketId m_nCurPacket; |
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/** Current TX being decoded */
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INT32 m_nCurTX; |
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/** Current TY being decoded */
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INT32 m_nCurTY; |
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/** Current TX increment amount */
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INT32 m_nIncTX; |
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/** Current TY increment amount */
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INT32 m_nIncTY; |
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/** Default constructor, initialises members */
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CNCSJPCProgression(); |
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/** Virtual destructor */
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virtual ~CNCSJPCProgression(); |
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/**
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* Get the current POC marker PO if present.
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* @return CNCSJPCPOCMarker::ProgressionOrder Current PO.
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*/
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CNCSJPCPOCMarker::ProgressionOrder *CurrentPO(class CNCSJPCTilePartHeader *pMainTP); |
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/**
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* Increment the current POC marker PO if present and current PO is complete.
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* @param bComplete Flag indicating if current PO is complete
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* @return CNCSError NCS_SUCCESS or error on failure.
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*/
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CNCSError IncrementPO(CNCSJPCTilePartHeader *pMainTP, bool &bComplete);
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/**
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* Start the progression order from the beginning.
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* @return CNCSError NCS_SUCCESS, or Error code on failure.
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*/
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virtual CNCSError Start(CNCSJPCTilePartHeader *pMainTP); |
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virtual CNCSError Start(CNCSJPCTilePartHeader *pMainTP, INT32 nComponent, INT32 nResolution); |
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/**
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* Increment the progression order from the current location, parsing packet headers in the process.
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* @param pData Data for Step function
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* @param bComplete Progression order is complete.
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* @return CNCSError NCS_SUCCESS, or Error code on failure.
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*/
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virtual CNCSError Iterate(CNCSJPCTilePartHeader *pMainTP, void *pData, bool &bComplete); |
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/**
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* Perform the "Step" for this progression.
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* @return bool true, or false on error & m_Error is set to actual error code.
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*/
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virtual bool Step(class CNCSJPCComponent *pComponent,
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class CNCSJPCResolution *pResolution, |
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class CNCSJPCPrecinct *pPrecinct); |
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/**
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* Perform the "StepRow" for this progression.
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* The progression stepper can return true here to skip the entire row
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*
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* @return bool true, or false on row not skipped.
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*/
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virtual bool StepRow(class CNCSJPCComponent *pComponent,
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class CNCSJPCResolution *pResolution); |
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/**
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* Calculate the Precinct 'k' X from the current progression
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* @return INT32 Precinct 'k' X
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*/
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UINT32 CalculatePrecinctX(CNCSJPCTilePartHeader *pMainTP, class CNCSJPCComponent *pComponent, class CNCSJPCResolution *pResolution); |
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/**
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* Calculate the Precinct 'k' Y from the current progression
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* @return INT32 Precinct 'k' Y
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*/
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UINT32 CalculatePrecinctY(CNCSJPCTilePartHeader *pMainTP, class CNCSJPCComponent *pComponent, class CNCSJPCResolution *pResolution); |
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protected:
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// Data for step function
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void *m_pData;
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// Progression order is complete
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bool m_bDone;
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// Error code when Step() returns false
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CNCSError m_Error; |
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}; |
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#endif // !NCSJPCPROGRESSION_H |