/src/gdal/ogr/ogrsf_frmts/avc/ogravcbindatasource.cpp

Source
/******************************************************************************
 *
 * Project:  OGR
 * Purpose:  Implements OGRAVCBinDataSource class.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2002, Frank Warmerdam <warmerdam@pobox.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include "ogr_avc.h"
#include "cpl_conv.h"
#include "cpl_string.h"

/************************************************************************/
/*                        OGRAVCBinDataSource()                         */
/************************************************************************/

OGRAVCBinDataSource::OGRAVCBinDataSource()
    : papoLayers(nullptr), nLayers(0), psAVC(nullptr)
{
    poSRS = nullptr;
}

/************************************************************************/
/*                        ~OGRAVCBinDataSource()                        */
/************************************************************************/

OGRAVCBinDataSource::~OGRAVCBinDataSource()

{
    if (psAVC)
    {
        AVCE00ReadClose(psAVC);
        psAVC = nullptr;
    }

    for (int i = 0; i < nLayers; i++)
        delete papoLayers[i];

    CPLFree(papoLayers);
}

/************************************************************************/
/*                                Open()                                */
/************************************************************************/

int OGRAVCBinDataSource::Open(const char *pszNewName, int bTestOpen)

{
    /* -------------------------------------------------------------------- */
    /*      Open the source file.  Suppress error reporting if we are in    */
    /*      TestOpen mode.                                                  */
    /* -------------------------------------------------------------------- */
    if (bTestOpen)
        CPLPushErrorHandler(CPLQuietErrorHandler);

    psAVC = AVCE00ReadOpen(pszNewName);

    if (bTestOpen)
    {
        CPLPopErrorHandler();
        CPLErrorReset();
    }

    if (psAVC == nullptr)
        return FALSE;

    pszCoverageName = CPLStrdup(psAVC->pszCoverName);

    // Read SRS first
    for (int iSection = 0; iSection < psAVC->numSections; iSection++)
    {
        AVCE00Section *psSec = psAVC->pasSections + iSection;

        switch (psSec->eType)
        {
            case AVCFilePRJ:
            {
                AVCBinFile *hFile = AVCBinReadOpen(
                    psAVC->pszCoverPath, psSec->pszFilename, psAVC->eCoverType,
                    psSec->eType, psAVC->psDBCSInfo);
                if (hFile && poSRS == nullptr)
                {
                    char **papszPRJ = AVCBinReadNextPrj(hFile);

                    poSRS = new OGRSpatialReference();
                    poSRS->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
                    if (poSRS->importFromESRI(papszPRJ) != OGRERR_NONE)
                    {
                        CPLError(CE_Warning, CPLE_AppDefined,
                                 "Failed to parse PRJ section, ignoring.");
                        delete poSRS;
                        poSRS = nullptr;
                    }
                }
                if (hFile)
                {
                    AVCBinReadClose(hFile);
                }
            }
            break;

            default:
                break;
        }
    }

    /* -------------------------------------------------------------------- */
    /*      Create layers for the "interesting" sections of the coverage.   */
    /* -------------------------------------------------------------------- */

    papoLayers = static_cast<OGRLayer **>(
        CPLCalloc(sizeof(OGRLayer *), psAVC->numSections));
    nLayers = 0;

    for (int iSection = 0; iSection < psAVC->numSections; iSection++)
    {
        AVCE00Section *psSec = psAVC->pasSections + iSection;

        switch (psSec->eType)
        {
            case AVCFileARC:
            case AVCFilePAL:
            case AVCFileCNT:
            case AVCFileLAB:
            case AVCFileRPL:
            case AVCFileTXT:
            case AVCFileTX6:
                papoLayers[nLayers++] = new OGRAVCBinLayer(this, psSec);
                break;

            default:
                break;
        }
    }

    return nLayers > 0;
}

/************************************************************************/
/*                           TestCapability()                           */
/************************************************************************/

int OGRAVCBinDataSource::TestCapability(const char *) const
{
    return FALSE;
}

/************************************************************************/
/*                              GetLayer()                              */
/************************************************************************/

const OGRLayer *OGRAVCBinDataSource::GetLayer(int iLayer) const

{
    if (iLayer < 0 || iLayer >= nLayers)
        return nullptr;

    return papoLayers[iLayer];
}

Line	Count	Source
1		/******************************************************************************
2		*
3		* Project: OGR
4		* Purpose: Implements OGRAVCBinDataSource class.
5		* Author: Frank Warmerdam, warmerdam@pobox.com
6		*
7		******************************************************************************
8		* Copyright (c) 2002, Frank Warmerdam <warmerdam@pobox.com>
9		*
10		* SPDX-License-Identifier: MIT
11		****************************************************************************/
12
13		#include "ogr_avc.h"
14		#include "cpl_conv.h"
15		#include "cpl_string.h"
16
17		/************************************************************************/
18		/* OGRAVCBinDataSource() */
19		/************************************************************************/
20
21		OGRAVCBinDataSource::OGRAVCBinDataSource()
22	20.7k	: papoLayers(nullptr), nLayers(0), psAVC(nullptr)
23	20.7k	{
24	20.7k	poSRS = nullptr;
25	20.7k	}
26
27		/************************************************************************/
28		/* ~OGRAVCBinDataSource() */
29		/************************************************************************/
30
31		OGRAVCBinDataSource::~OGRAVCBinDataSource()
32
33	20.7k	{
34	20.7k	if (psAVC)
35	14.8k	{
36	14.8k	AVCE00ReadClose(psAVC);
37	14.8k	psAVC = nullptr;
38	14.8k	}
39
40	33.4k	for (int i = 0; i < nLayers; i++)
41	12.6k	delete papoLayers[i];
42
43	20.7k	CPLFree(papoLayers);
44	20.7k	}
45
46		/************************************************************************/
47		/* Open() */
48		/************************************************************************/
49
50		int OGRAVCBinDataSource::Open(const char *pszNewName, int bTestOpen)
51
52	20.7k	{
53		/* -------------------------------------------------------------------- */
54		/* Open the source file. Suppress error reporting if we are in */
55		/* TestOpen mode. */
56		/* -------------------------------------------------------------------- */
57	20.7k	if (bTestOpen)
58	20.7k	CPLPushErrorHandler(CPLQuietErrorHandler);
59
60	20.7k	psAVC = AVCE00ReadOpen(pszNewName);
61
62	20.7k	if (bTestOpen)
63	20.7k	{
64	20.7k	CPLPopErrorHandler();
65	20.7k	CPLErrorReset();
66	20.7k	}
67
68	20.7k	if (psAVC == nullptr)
69	5.96k	return FALSE;
70
71	14.8k	pszCoverageName = CPLStrdup(psAVC->pszCoverName);
72
73		// Read SRS first
74	112k	for (int iSection = 0; iSection < psAVC->numSections; iSection++)
75	98.1k	{
76	98.1k	AVCE00Section *psSec = psAVC->pasSections + iSection;
77
78	98.1k	switch (psSec->eType)
79	98.1k	{
80	13.0k	case AVCFilePRJ:
81	13.0k	{
82	13.0k	AVCBinFile *hFile = AVCBinReadOpen(
83	13.0k	psAVC->pszCoverPath, psSec->pszFilename, psAVC->eCoverType,
84	13.0k	psSec->eType, psAVC->psDBCSInfo);
85	13.0k	if (hFile && poSRS == nullptr)
86	12.9k	{
87	12.9k	char **papszPRJ = AVCBinReadNextPrj(hFile);
88
89	12.9k	poSRS = new OGRSpatialReference();
90	12.9k	poSRS->SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
91	12.9k	if (poSRS->importFromESRI(papszPRJ) != OGRERR_NONE)
92	8.07k	{
93	8.07k	CPLError(CE_Warning, CPLE_AppDefined,
94	8.07k	"Failed to parse PRJ section, ignoring.");
95	8.07k	delete poSRS;
96	8.07k	poSRS = nullptr;
97	8.07k	}
98	12.9k	}
99	13.0k	if (hFile)
100	12.9k	{
101	12.9k	AVCBinReadClose(hFile);
102	12.9k	}
103	13.0k	}
104	13.0k	break;
105
106	85.1k	default:
107	85.1k	break;
108	98.1k	}
109	98.1k	}
110
111		/* -------------------------------------------------------------------- */
112		/* Create layers for the "interesting" sections of the coverage. */
113		/* -------------------------------------------------------------------- */
114
115	14.8k	papoLayers = static_cast<OGRLayer **>(
116	14.8k	CPLCalloc(sizeof(OGRLayer *), psAVC->numSections));
117	14.8k	nLayers = 0;
118
119	112k	for (int iSection = 0; iSection < psAVC->numSections; iSection++)
120	98.1k	{
121	98.1k	AVCE00Section *psSec = psAVC->pasSections + iSection;
122
123	98.1k	switch (psSec->eType)
124	98.1k	{
125	1.41k	case AVCFileARC:
126	2.86k	case AVCFilePAL:
127	3.08k	case AVCFileCNT:
128	4.40k	case AVCFileLAB:
129	9.66k	case AVCFileRPL:
130	10.0k	case AVCFileTXT:
131	12.6k	case AVCFileTX6:
132	12.6k	papoLayers[nLayers++] = new OGRAVCBinLayer(this, psSec);
133	12.6k	break;
134
135	85.4k	default:
136	85.4k	break;
137	98.1k	}
138	98.1k	}
139
140	14.8k	return nLayers > 0;
141	14.8k	}
142
143		/************************************************************************/
144		/* TestCapability() */
145		/************************************************************************/
146
147		int OGRAVCBinDataSource::TestCapability(const char *) const
148	0	{
149	0	return FALSE;
150	0	}
151
152		/************************************************************************/
153		/* GetLayer() */
154		/************************************************************************/
155
156		const OGRLayer *OGRAVCBinDataSource::GetLayer(int iLayer) const
157
158	27.9k	{
159	27.9k	if (iLayer < 0 \|\| iLayer >= nLayers)
160	0	return nullptr;
161
162	27.9k	return papoLayers[iLayer];
163	27.9k	}

Coverage Report

Created: 2026-03-30 09:00