Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  GDAL Rasterlite driver
       4             :  * Purpose:  Implement GDAL Rasterlite support using OGR SQLite driver
       5             :  * Author:   Even Rouault, <even dot rouault at spatialys.com>
       6             :  *
       7             :  **********************************************************************
       8             :  * Copyright (c) 2009-2013, Even Rouault <even dot rouault at spatialys.com>
       9             :  *
      10             :  * SPDX-License-Identifier: MIT
      11             :  ****************************************************************************/
      12             : 
      13             : #include "rasterlitedrivercore.h"
      14             : 
      15             : /************************************************************************/
      16             : /*                    RasterliteDriverIdentify()                        */
      17             : /************************************************************************/
      18             : 
      19       52562 : int RasterliteDriverIdentify(GDALOpenInfo *poOpenInfo)
      20             : 
      21             : {
      22             : #ifdef ENABLE_SQL_SQLITE_FORMAT
      23       52562 :     if (poOpenInfo->pabyHeader &&
      24        4417 :         STARTS_WITH((const char *)poOpenInfo->pabyHeader, "-- SQL RASTERLITE"))
      25             :     {
      26           2 :         return TRUE;
      27             :     }
      28             : #endif
      29             : 
      30       52560 :     if (!EQUAL(CPLGetExtension(poOpenInfo->pszFilename), "MBTILES") &&
      31       52383 :         !EQUAL(CPLGetExtension(poOpenInfo->pszFilename), "GPKG") &&
      32       50701 :         poOpenInfo->nHeaderBytes >= 1024 && poOpenInfo->pabyHeader &&
      33        2034 :         STARTS_WITH_CI((const char *)poOpenInfo->pabyHeader,
      34      104943 :                        "SQLite Format 3") &&
      35             :         // Do not match direct Amazon S3 signed URLs that contains .mbtiles in
      36             :         // the middle of the URL
      37          72 :         strstr(poOpenInfo->pszFilename, ".mbtiles") == nullptr)
      38             :     {
      39             :         // Could be a SQLite/Spatialite file as well
      40          72 :         return -1;
      41             :     }
      42       52488 :     else if (STARTS_WITH_CI(poOpenInfo->pszFilename, "RASTERLITE:"))
      43             :     {
      44          37 :         return TRUE;
      45             :     }
      46             : 
      47       52451 :     return FALSE;
      48             : }
      49             : 
      50             : /************************************************************************/
      51             : /*                  RasterliteDriverSetCommonMetadata()                 */
      52             : /************************************************************************/
      53             : 
      54        1293 : void RasterliteDriverSetCommonMetadata(GDALDriver *poDriver)
      55             : {
      56        1293 :     poDriver->SetDescription(DRIVER_NAME);
      57        1293 :     poDriver->SetMetadataItem(GDAL_DCAP_RASTER, "YES");
      58        1293 :     poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "Rasterlite");
      59        1293 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC,
      60        1293 :                               "drivers/raster/rasterlite.html");
      61        1293 :     poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "sqlite");
      62        1293 :     poDriver->SetMetadataItem(GDAL_DMD_SUBDATASETS, "YES");
      63        1293 :     poDriver->SetMetadataItem(GDAL_DMD_CREATIONDATATYPES,
      64             :                               "Byte UInt16 Int16 UInt32 Int32 Float32 "
      65        1293 :                               "Float64 CInt16 CInt32 CFloat32 CFloat64");
      66        1293 :     poDriver->SetMetadataItem(
      67             :         GDAL_DMD_CREATIONOPTIONLIST,
      68             :         "<CreationOptionList>"
      69             :         "   <Option name='WIPE' type='boolean' default='NO' description='Erase "
      70             :         "all preexisting data in the specified table'/>"
      71             :         "   <Option name='TILED' type='boolean' default='YES' description='Use "
      72             :         "tiling'/>"
      73             :         "   <Option name='BLOCKXSIZE' type='int' default='256' "
      74             :         "description='Tile Width'/>"
      75             :         "   <Option name='BLOCKYSIZE' type='int' default='256' "
      76             :         "description='Tile Height'/>"
      77             :         "   <Option name='DRIVER' type='string' description='GDAL driver to "
      78             :         "use for storing tiles' default='GTiff'/>"
      79             :         "   <Option name='COMPRESS' type='string' description='(GTiff driver) "
      80             :         "Compression method' default='NONE'/>"
      81             :         "   <Option name='QUALITY' type='int' description='(JPEG-compressed "
      82             :         "GTiff, JPEG and WEBP drivers) JPEG/WEBP Quality 1-100' default='75'/>"
      83             :         "   <Option name='PHOTOMETRIC' type='string-select' "
      84             :         "description='(GTiff driver) Photometric interpretation'>"
      85             :         "       <Value>MINISBLACK</Value>"
      86             :         "       <Value>MINISWHITE</Value>"
      87             :         "       <Value>PALETTE</Value>"
      88             :         "       <Value>RGB</Value>"
      89             :         "       <Value>CMYK</Value>"
      90             :         "       <Value>YCBCR</Value>"
      91             :         "       <Value>CIELAB</Value>"
      92             :         "       <Value>ICCLAB</Value>"
      93             :         "       <Value>ITULAB</Value>"
      94             :         "   </Option>"
      95        1293 :         "</CreationOptionList>");
      96        1293 :     poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
      97             : 
      98             : #ifdef ENABLE_SQL_SQLITE_FORMAT
      99        1293 :     poDriver->SetMetadataItem("ENABLE_SQL_SQLITE_FORMAT", "YES");
     100             : #endif
     101             : 
     102        1293 :     poDriver->pfnIdentify = RasterliteDriverIdentify;
     103        1293 :     poDriver->SetMetadataItem(GDAL_DCAP_OPEN, "YES");
     104        1293 :     poDriver->SetMetadataItem(GDAL_DCAP_CREATECOPY, "YES");
     105        1293 : }
     106             : 
     107             : /************************************************************************/
     108             : /*                  DeclareDeferredRasterlitePlugin()                   */
     109             : /************************************************************************/
     110             : 
     111             : #ifdef PLUGIN_FILENAME
     112             : void DeclareDeferredRasterlitePlugin()
     113             : {
     114             :     if (GDALGetDriverByName(DRIVER_NAME) != nullptr)
     115             :     {
     116             :         return;
     117             :     }
     118             :     auto poDriver = new GDALPluginDriverProxy(PLUGIN_FILENAME);
     119             : #ifdef PLUGIN_INSTALLATION_MESSAGE
     120             :     poDriver->SetMetadataItem(GDAL_DMD_PLUGIN_INSTALLATION_MESSAGE,
     121             :                               PLUGIN_INSTALLATION_MESSAGE);
     122             : #endif
     123             :     RasterliteDriverSetCommonMetadata(poDriver);
     124             :     GetGDALDriverManager()->DeclareDeferredPluginDriver(poDriver);
     125             : }
     126             : #endif