Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  FITS Driver
       4             :  * Purpose:  Implement FITS raster read/write support
       5             :  * Author:   Simon Perkins, s.perkins@lanl.gov
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 2001, Simon Perkins
       9             :  * Copyright (c) 2008-2020, Even Rouault <even dot rouault at spatialys.com>
      10             :  * Copyright (c) 2018, Chiara Marmo <chiara dot marmo at u-psud dot fr>
      11             :  *
      12             :  * SPDX-License-Identifier: MIT
      13             :  ****************************************************************************/
      14             : 
      15             : #include "fitsdrivercore.h"
      16             : 
      17             : /************************************************************************/
      18             : /*                     FITSDriverIdentify()                             */
      19             : /************************************************************************/
      20             : 
      21       66862 : int FITSDriverIdentify(GDALOpenInfo *poOpenInfo)
      22             : 
      23             : {
      24       66862 :     if (STARTS_WITH(poOpenInfo->pszFilename, "FITS:"))
      25          18 :         return true;
      26             : 
      27       66844 :     const char *fitsID = "SIMPLE  =                    T";  // Spaces important!
      28       66844 :     const size_t fitsIDLen = strlen(fitsID);  // Should be 30 chars long
      29             : 
      30       66844 :     if (static_cast<size_t>(poOpenInfo->nHeaderBytes) < fitsIDLen)
      31       52756 :         return false;
      32       14088 :     if (memcmp(poOpenInfo->pabyHeader, fitsID, fitsIDLen) != 0)
      33       13975 :         return false;
      34         113 :     return true;
      35             : }
      36             : 
      37             : /************************************************************************/
      38             : /*                      FITSDriverSetCommonMetadata()                   */
      39             : /************************************************************************/
      40             : 
      41        1395 : void FITSDriverSetCommonMetadata(GDALDriver *poDriver)
      42             : {
      43        1395 :     poDriver->SetDescription(DRIVER_NAME);
      44        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_RASTER, "YES");
      45        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES");
      46        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_CREATE_LAYER, "YES");
      47        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_CREATE_FIELD, "YES");
      48        1395 :     poDriver->SetMetadataItem(GDAL_DMD_LONGNAME,
      49        1395 :                               "Flexible Image Transport System");
      50        1395 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/raster/fits.html");
      51        1395 :     poDriver->SetMetadataItem(GDAL_DMD_CREATIONDATATYPES,
      52        1395 :                               "Byte UInt16 Int16 UInt32 Int32 Float32 Float64");
      53        1395 :     poDriver->SetMetadataItem(GDAL_DMD_EXTENSIONS, "fits");
      54             : 
      55        1395 :     poDriver->SetMetadataItem(GDAL_DMD_CREATIONFIELDDATATYPES,
      56             :                               "Integer Integer64 Real String IntegerList "
      57        1395 :                               "Integer64List RealList");
      58        1395 :     poDriver->SetMetadataItem(GDAL_DMD_CREATIONFIELDDATASUBTYPES,
      59        1395 :                               "Boolean Int16 Float32");
      60             : 
      61        1395 :     poDriver->SetMetadataItem(
      62             :         GDAL_DS_LAYER_CREATIONOPTIONLIST,
      63             :         "<LayerCreationOptionList>"
      64             :         "  <Option name='REPEAT_*' type='int' description='Repeat value for "
      65             :         "fields of type List'/>"
      66             :         "  <Option name='COMPUTE_REPEAT' type='string-select' "
      67             :         "description='Determine when the repeat value for fields is computed'>"
      68             :         "    <Value>AT_FIELD_CREATION</Value>"
      69             :         "    <Value>AT_FIRST_FEATURE_CREATION</Value>"
      70             :         "  </Option>"
      71        1395 :         "</LayerCreationOptionList>");
      72             : 
      73        1395 :     poDriver->pfnIdentify = FITSDriverIdentify;
      74        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_OPEN, "YES");
      75        1395 :     poDriver->SetMetadataItem(GDAL_DCAP_CREATE, "YES");
      76        1395 : }
      77             : 
      78             : /************************************************************************/
      79             : /*                     DeclareDeferredFITSPlugin()                      */
      80             : /************************************************************************/
      81             : 
      82             : #ifdef PLUGIN_FILENAME
      83        1686 : void DeclareDeferredFITSPlugin()
      84             : {
      85        1686 :     if (GDALGetDriverByName(DRIVER_NAME) != nullptr)
      86             :     {
      87         302 :         return;
      88             :     }
      89        1384 :     auto poDriver = new GDALPluginDriverProxy(PLUGIN_FILENAME);
      90             : #ifdef PLUGIN_INSTALLATION_MESSAGE
      91             :     poDriver->SetMetadataItem(GDAL_DMD_PLUGIN_INSTALLATION_MESSAGE,
      92             :                               PLUGIN_INSTALLATION_MESSAGE);
      93             : #endif
      94        1384 :     FITSDriverSetCommonMetadata(poDriver);
      95        1384 :     GetGDALDriverManager()->DeclareDeferredPluginDriver(poDriver);
      96             : }
      97             : #endif