1 /****************************************************************************** 2 * $Id: rasterlitedataset.h 27566 2014-08-05 09:37:57Z rouault $ 3 * 4 * Project: GDAL Rasterlite driver 5 * Purpose: Implement GDAL Rasterlite support using OGR SQLite driver 6 * Author: Even Rouault, <even dot rouault at mines dash paris dot org> 7 * 8 ********************************************************************** 9 * Copyright (c) 2009-2013, Even Rouault <even dot rouault at mines-paris dot org> 10 * 11 * Permission is hereby granted, free of charge, to any person obtaining a 12 * copy of this software and associated documentation files (the "Software"), 13 * to deal in the Software without restriction, including without limitation 14 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 15 * and/or sell copies of the Software, and to permit persons to whom the 16 * Software is furnished to do so, subject to the following conditions: 17 * 18 * The above copyright notice and this permission notice shall be included 19 * in all copies or substantial portions of the Software. 20 * 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 27 * DEALINGS IN THE SOFTWARE. 28 ****************************************************************************/ 29 30 #ifndef RASTERLITE_DATASET_INCLUDED 31 #define RASTERLITE_DATASET_INCLUDED 32 33 #include "gdal_pam.h" 34 #include "ogr_api.h" 35 36 char** RasterliteGetTileDriverOptions(char** papszOptions); 37 38 OGRDataSourceH RasterliteOpenSQLiteDB(const char* pszFilename, 39 GDALAccess eAccess); 40 CPLString RasterliteGetPixelSizeCond(double dfPixelXSize, 41 double dfPixelYSize, 42 const char* pszTablePrefixWithDot = ""); 43 CPLString RasterliteGetSpatialFilterCond(double minx, double miny, 44 double maxx, double maxy); 45 46 class RasterliteBand; 47 48 /************************************************************************/ 49 /* ==================================================================== */ 50 /* RasterliteDataset */ 51 /* ==================================================================== */ 52 /************************************************************************/ 53 54 class RasterliteDataset : public GDALPamDataset 55 { 56 friend class RasterliteBand; 57 58 public: 59 RasterliteDataset(); 60 RasterliteDataset(RasterliteDataset* poMainDS, int nLevel); 61 62 virtual ~RasterliteDataset(); 63 64 virtual char **GetMetadataDomainList(); 65 virtual char **GetMetadata( const char *pszDomain ); 66 virtual const char *GetMetadataItem( const char *pszName, 67 const char *pszDomain ); 68 virtual CPLErr GetGeoTransform( double* padfGeoTransform ); 69 virtual const char* GetProjectionRef(); 70 71 virtual char** GetFileList(); 72 73 virtual CPLErr IBuildOverviews( const char * pszResampling, 74 int nOverviews, int * panOverviewList, 75 int nBands, int * panBandList, 76 GDALProgressFunc pfnProgress, void * pProgressData ); 77 78 static GDALDataset *Open( GDALOpenInfo * ); 79 static int Identify( GDALOpenInfo * ); 80 81 protected: 82 virtual int CloseDependentDatasets(); 83 84 private: 85 86 int bMustFree; 87 RasterliteDataset* poMainDS; 88 int nLevel; 89 90 char** papszMetadata; 91 char** papszImageStructure; 92 char** papszSubDatasets; 93 94 int nResolutions; 95 double* padfXResolutions, *padfYResolutions; 96 RasterliteDataset** papoOverviews; 97 int nLimitOvrCount; 98 99 int bValidGeoTransform; 100 double adfGeoTransform[6]; 101 char* pszSRS; 102 103 GDALColorTable* poCT; 104 105 CPLString osTableName; 106 CPLString osFileName; 107 108 int bCheckForExistingOverview; 109 CPLString osOvrFileName; 110 111 OGRDataSourceH hDS; 112 113 void AddSubDataset( const char* pszDSName); 114 int GetBlockParams(OGRLayerH hRasterLyr, int nLevel, int* pnBands, 115 GDALDataType* peDataType, 116 int* pnBlockXSize, int* pnBlockYSize); 117 CPLErr CleanOverviews(); 118 CPLErr CleanOverviewLevel(int nOvrFactor); 119 CPLErr ReloadOverviews(); 120 CPLErr CreateOverviewLevel(const char * pszResampling, 121 int nOvrFactor, 122 char** papszOptions, 123 GDALProgressFunc pfnProgress, 124 void * pProgressData); 125 }; 126 127 /************************************************************************/ 128 /* ==================================================================== */ 129 /* RasterliteBand */ 130 /* ==================================================================== */ 131 /************************************************************************/ 132 133 class RasterliteBand: public GDALPamRasterBand 134 { 135 friend class RasterliteDataset; 136 137 public: 138 RasterliteBand( RasterliteDataset* poDS, int nBand, 139 GDALDataType eDataType, 140 int nBlockXSize, int nBlockYSize); 141 142 virtual GDALColorInterp GetColorInterpretation(); 143 virtual GDALColorTable* GetColorTable(); 144 145 virtual int GetOverviewCount(); 146 virtual GDALRasterBand* GetOverview(int nLevel); 147 148 virtual CPLErr IReadBlock( int, int, void * ); 149 }; 150 151 GDALDataset * 152 RasterliteCreateCopy( const char * pszFilename, GDALDataset *poSrcDS, 153 int bStrict, char ** papszOptions, 154 GDALProgressFunc pfnProgress, void * pProgressData ); 155 156 CPLErr RasterliteDelete(const char* pszFilename); 157 158 #endif // RASTERLITE_DATASET_INCLUDED 159