/src/gdal/ogr/ogrsf_frmts/gmt/ogrgmtdriver.cpp
Line | Count | Source |
1 | | /****************************************************************************** |
2 | | * |
3 | | * Project: OpenGIS Simple Features Reference Implementation |
4 | | * Purpose: Implements OGRGmtDriver class. |
5 | | * Author: Frank Warmerdam, warmerdam@pobox.com |
6 | | * |
7 | | ****************************************************************************** |
8 | | * Copyright (c) 2007, Frank Warmerdam <warmerdam@pobox.com> |
9 | | * |
10 | | * SPDX-License-Identifier: MIT |
11 | | ****************************************************************************/ |
12 | | |
13 | | #include "ogr_gmt.h" |
14 | | #include "cpl_conv.h" |
15 | | #include "cpl_string.h" |
16 | | |
17 | | /************************************************************************/ |
18 | | /* OGRGMTDriverIdentify() */ |
19 | | /************************************************************************/ |
20 | | |
21 | | static int OGRGMTDriverIdentify(GDALOpenInfo *poOpenInfo) |
22 | | |
23 | 123k | { |
24 | 123k | const char *pszHeader = |
25 | 123k | reinterpret_cast<const char *>(poOpenInfo->pabyHeader); |
26 | 123k | if (poOpenInfo->nHeaderBytes && strstr(pszHeader, "@VGMT") != nullptr) |
27 | 21.6k | return true; |
28 | | |
29 | 101k | if (poOpenInfo->IsExtensionEqualToCI("GMT")) |
30 | 250 | return true; |
31 | | |
32 | 101k | return false; |
33 | 101k | } |
34 | | |
35 | | /************************************************************************/ |
36 | | /* OGRGMTDriverOpen() */ |
37 | | /************************************************************************/ |
38 | | |
39 | | static GDALDataset *OGRGMTDriverOpen(GDALOpenInfo *poOpenInfo) |
40 | | |
41 | 10.9k | { |
42 | 10.9k | if (!OGRGMTDriverIdentify(poOpenInfo)) |
43 | 0 | return nullptr; |
44 | | |
45 | 10.9k | OGRGmtDataSource *poDS = new OGRGmtDataSource(); |
46 | | |
47 | 10.9k | if (!poDS->Open(poOpenInfo->pszFilename, nullptr, nullptr, |
48 | 10.9k | poOpenInfo->eAccess == GA_Update)) |
49 | 82 | { |
50 | 82 | delete poDS; |
51 | 82 | return nullptr; |
52 | 82 | } |
53 | | |
54 | 10.8k | return poDS; |
55 | 10.9k | } |
56 | | |
57 | | /************************************************************************/ |
58 | | /* OGRGMTDriverCreate() */ |
59 | | /************************************************************************/ |
60 | | |
61 | | static GDALDataset *OGRGMTDriverCreate(const char *, CPL_UNUSED int nBands, |
62 | | CPL_UNUSED int nXSize, |
63 | | CPL_UNUSED int nYSize, |
64 | | CPL_UNUSED GDALDataType eDT, |
65 | | CSLConstList) |
66 | 82 | { |
67 | 82 | return new OGRGmtDataSource(); |
68 | 82 | } |
69 | | |
70 | | /************************************************************************/ |
71 | | /* RegisterOGRGMT() */ |
72 | | /************************************************************************/ |
73 | | |
74 | | void RegisterOGRGMT() |
75 | | |
76 | 22 | { |
77 | 22 | if (GDALGetDriverByName("OGR_GMT") != nullptr) |
78 | 0 | return; |
79 | | |
80 | 22 | GDALDriver *poDriver = new GDALDriver(); |
81 | 22 | poDriver->SetDescription("OGR_GMT"); |
82 | 22 | poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES"); |
83 | 22 | poDriver->SetMetadataItem(GDAL_DCAP_CREATE_LAYER, "YES"); |
84 | 22 | poDriver->SetMetadataItem(GDAL_DCAP_CREATE_FIELD, "YES"); |
85 | 22 | poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "GMT ASCII Vectors (.gmt)"); |
86 | 22 | poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "gmt"); |
87 | 22 | poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/vector/gmt.html"); |
88 | 22 | poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES"); |
89 | 22 | poDriver->SetMetadataItem(GDAL_DCAP_Z_GEOMETRIES, "YES"); |
90 | 22 | poDriver->SetMetadataItem(GDAL_DMD_SUPPORTED_SQL_DIALECTS, "OGRSQL SQLITE"); |
91 | | |
92 | 22 | poDriver->pfnOpen = OGRGMTDriverOpen; |
93 | 22 | poDriver->pfnIdentify = OGRGMTDriverIdentify; |
94 | 22 | poDriver->pfnCreate = OGRGMTDriverCreate; |
95 | | |
96 | 22 | GetGDALDriverManager()->RegisterDriver(poDriver); |
97 | 22 | } |