Source/System/Image/FileIO/OSGGDALImageFileType.h

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  38
  39 #ifndef _OSGGDALIMAGEFILETYPE_H_
  40 #define _OSGGDALIMAGEFILETYPE_H_
  41 #ifdef  __sgi
  42 #pragma  once
  43 #endif
  44
  45 #include "OSGImageFileIODef.h"
  46 #include "OSGImageFileType.h"
  47
  48 #include "boost/shared_ptr.hpp"
  49
  50 #ifdef OSG_WITH_GDAL
  51 #include "gdal_priv.h"
  52 #include "ogr_srs_api.h"
  53 #endif
  54
  55 OSG_BEGIN_NAMESPACE
  56
  57 class GDALImageFileType;
  58
  59 /*! \ingroup GrpImageFileIOGDAL
  60     \ingroup GrpLibOSGImageFileIO
  61  */
  62
  63 class OSG_IMGFILEIO_DLLMAPPING GDALBlockAccessor : public ImageBlockAccessor
  64 {
  65
  66     /*==========================  PUBLIC  =================================*/
  67
  68   public:
  69
  70     typedef ImageBlockAccessor Inherited;
  71
  72     /*---------------------------------------------------------------------*/
  73     /*! \name                   Destructor                                 */
  74     /*! \{                                                                 */
  75
  76     virtual ~GDALBlockAccessor(void);
  77
  78     /*! \}                                                                 */
  79     /*---------------------------------------------------------------------*/
  80     /*! \name                   Read/Write                                 */
  81     /*! \{                                                                 */
  82
  83     virtual bool isOpen(void);
  84
  85     /*! \}                                                                 */
  86     /*---------------------------------------------------------------------*/
  87     /*! \name                   Read/Write                                 */
  88     /*! \{                                                                 */
  89
  90     virtual bool readBlockA16(Vec2i   vSampleOrigin,
  91                               Int32   iTextureSize,
  92                               UInt16 *pTarget,
  93                               Int32   iTargetSizeBytes);
  94
  95     virtual bool readBlockA16(Vec2i   vSampleOrigin,
  96                               Int32   iTextureSize,
  97                               Int16  *pTarget,
  98                               Int32   iTargetSizeBytes);
  99
 100     /*! \}                                                                 */
 101     /*=========================  PROTECTED  ===============================*/
 102
 103   protected:
 104
 105 #ifdef OSG_WITH_GDAL
 106     GDALDataset               *_pDataset;
 107     GDALRasterBand            *_pBand;
 108 #endif
 109
 110     std::vector<Int16>         _vI16Buffer;
 111
 112     /*---------------------------------------------------------------------*/
 113     /*! \name                Default Constructor                           */
 114     /*! \{                                                                 */
 115
 116     GDALBlockAccessor(void);
 117
 118     /*! \}                                                                 */
 119     /*---------------------------------------------------------------------*/
 120     /*! \name                   Read/Write                                 */
 121     /*! \{                                                                 */
 122
 123     void open(const Char8 *szFilename);
 124
 125     /*! \}                                                                 */
 126     /*---------------------------------------------------------------------*/
 127     /*! \name                   Read/Write                                 */
 128     /*! \{                                                                 */
 129
 130     /*! \}                                                                 */
 131     /*==========================  PRIVATE  ================================*/
 132
 133   private:
 134
 135     friend class GDALImageFileType;
 136
 137     GDALBlockAccessor(const GDALBlockAccessor &other);
 138     void operator =(const GDALBlockAccessor &rhs);
 139 };
 140
 141 /*! \ingroup GrpImageFileIOGDAL
 142  */
 143
 144 typedef boost::shared_ptr<GDALBlockAccessor> GDALBlockAccessorPtr;
 145
 146 /*! \brief GDAL File Handler. Used to read/write TIFF files.
 147     See \ref PageSystemImage for a detailed description.
 148
 149     \ingroup GrpImageFileIOGDAL
 150     \ingroup GrpLibOSGImageFileIO
 151 */
 152
 153 class OSG_IMGFILEIO_DLLMAPPING GDALImageFileType : public ImageFileType
 154 {
 155     /*==========================  PUBLIC  =================================*/
 156
 157   public:
 158
 159     /*---------------------------------------------------------------------*/
 160     /*! \name                   Destructor                                 */
 161     /*! \{                                                                 */
 162
 163     virtual ~GDALImageFileType(void);
 164
 165     /*! \}                                                                 */
 166     /*---------------------------------------------------------------------*/
 167     /*! \name                   Read/Write                                 */
 168     /*! \{                                                                 */
 169
 170     virtual bool read          (      Image            *pImage,
 171                                 const Char8            *fileName   ) ;
 172
 173     virtual bool write         (const Image            *pImage,
 174                                 const Char8            *fileName   ) ;
 175
 176     virtual bool validateHeader(const Char8            *fileName,
 177                                       bool             &implemented);
 178
 179     /*! \}                                                                 */
 180     /*---------------------------------------------------------------------*/
 181     /*! \name                        Type                                  */
 182     /*! \{                                                                 */
 183
 184 #if 1
 185     virtual ImageBlockAccessorPtr open(const Char8 *fileName);
 186 #endif
 187
 188     /*! \}                                                                 */
 189     /*=========================  PROTECTED  ===============================*/
 190
 191   protected:
 192
 193     /*---------------------------------------------------------------------*/
 194     /*! \name               Default Constructor                            */
 195     /*! \{                                                                 */
 196
 197     GDALImageFileType (const Char8  *mimeType,
 198                        const Char8  *suffixArray[],
 199                              UInt16  suffixByteCount,
 200                              UInt32  flags );
 201
 202     /*! \}                                                                 */
 203     /*---------------------------------------------------------------------*/
 204     /*! \name                      Copy Op                                 */
 205     /*! \{                                                                 */
 206
 207           GDALImageFileType            (const GDALImageFileType &obj);
 208     const GDALImageFileType &operator =(const GDALImageFileType &obj);
 209
 210     /*! \}                                                                 */
 211     /*==========================  PRIVATE  ================================*/
 212
 213   private:
 214
 215     typedef ImageFileType Inherited;
 216
 217     static GDALImageFileType _the;
 218 };
 219
 220 typedef GDALImageFileType *GDALImageFileTypeP;
 221
 222 OSG_END_NAMESPACE
 223
 224 #endif // _OSGGDALIMAGEFILETYPE_H_