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00063 #ifndef GDALWARPER_H_INCLUDED
00064 #define GDALWARPER_H_INCLUDED
00065
00074 #include "gdal_alg.h"
00075
00076 CPL_C_START
00077
00079 typedef enum { GRA_NearestNeighbour=0, GRA_Bilinear=1, GRA_Cubic=2, GRA_CubicSpline=3,
00084 } GDALResampleAlg;
00085
00086 typedef int
00087 (*GDALMaskFunc)( void *pMaskFuncArg,
00088 int nBandCount, GDALDataType eType,
00089 int nXOff, int nYOff,
00090 int nXSize, int nYSize,
00091 GByte **papabyImageData,
00092 int bMaskIsFloat, void *pMask );
00093
00094 CPLErr GDALWarpNoDataMasker( void *pMaskFuncArg, int nBandCount,
00095 GDALDataType eType,
00096 int nXOff, int nYOff, int nXSize, int nYSize,
00097 GByte **papabyImageData, int bMaskIsFloat,
00098 void *pValidityMask );
00099
00100
00101
00102
00103
00105 typedef struct {
00106
00107 char **papszWarpOptions;
00108
00110 double dfWarpMemoryLimit;
00111
00113 GDALResampleAlg eResampleAlg;
00114
00117 GDALDataType eWorkingDataType;
00118
00120 GDALDatasetH hSrcDS;
00121
00123 GDALDatasetH hDstDS;
00124
00126 int nBandCount;
00127
00129 int *panSrcBands;
00130
00132 int *panDstBands;
00133
00135 double *padfSrcNoDataReal;
00138 double *padfSrcNoDataImag;
00139
00141 double *padfDstNoDataReal;
00144 double *padfDstNoDataImag;
00145
00148 GDALProgressFunc pfnProgress;
00149
00151 void *pProgressArg;
00152
00154 GDALTransformerFunc pfnTransformer;
00155
00157 void *pTransformerArg;
00158
00159 GDALMaskFunc *papfnSrcPerBandValidityMaskFunc;
00160 void **papSrcPerBandValidityMaskFuncArg;
00161
00162 GDALMaskFunc pfnSrcValidityMaskFunc;
00163 void *pSrcValidityMaskFuncArg;
00164
00165 GDALMaskFunc pfnSrcDensityMaskFunc;
00166 void *pSrcDensityMaskFuncArg;
00167
00168 GDALMaskFunc pfnDstDensityMaskFunc;
00169 void *pDstDensityMaskFuncArg;
00170
00171 GDALMaskFunc pfnDstValidityMaskFunc;
00172 void *pDstValidityMaskFuncArg;
00173
00174 CPLErr (*pfnPreWarpChunkProcessor)( void *pKern, void *pArg );
00175 void *pPreWarpProcessorArg;
00176
00177 CPLErr (*pfnPostWarpChunkProcessor)( void *pKern, void *pArg);
00178 void *pPostWarpProcessorArg;
00179
00180 } GDALWarpOptions;
00181
00182 GDALWarpOptions CPL_DLL *GDALCreateWarpOptions();
00183 void CPL_DLL GDALDestroyWarpOptions( GDALWarpOptions * );
00184 GDALWarpOptions CPL_DLL *GDALCloneWarpOptions( const GDALWarpOptions * );
00185
00186
00187
00188
00189
00190 CPLErr CPL_DLL
00191 GDALReprojectImage( GDALDatasetH hSrcDS, const char *pszSrcWKT,
00192 GDALDatasetH hDstDS, const char *pszDstWKT,
00193 GDALResampleAlg eResampleAlg, double dfWarpMemoryLimit,
00194 double dfMaxError,
00195 GDALProgressFunc pfnProgress, void *pProgressArg,
00196 GDALWarpOptions *psOptions );
00197
00198 CPLErr CPL_DLL
00199 GDALCreateAndReprojectImage( GDALDatasetH hSrcDS, const char *pszSrcWKT,
00200 const char *pszDstFilename, const char *pszDstWKT,
00201 GDALDriverH hDstDriver, char **papszCreateOptions,
00202 GDALResampleAlg eResampleAlg, double dfWarpMemoryLimit,
00203 double dfMaxError,
00204 GDALProgressFunc pfnProgress, void *pProgressArg,
00205 GDALWarpOptions *psOptions );
00206
00207 CPL_C_END
00208
00209 #ifdef __cplusplus
00210
00211
00212
00213
00214
00215
00216
00217
00218
00219
00220
00221 class CPL_DLL GDALWarpKernel
00222 {
00223 public:
00224 GDALWarpKernel();
00225 virtual ~GDALWarpKernel();
00226
00227 char **papszWarpOptions;
00228
00229 GDALResampleAlg eResample;
00230 GDALDataType eWorkingDataType;
00231 int nBands;
00232
00233 int nSrcXSize;
00234 int nSrcYSize;
00235 GByte **papabySrcImage;
00236
00237 GUInt32 **papanBandSrcValid;
00238 GUInt32 *panUnifiedSrcValid;
00239 float *pafUnifiedSrcDensity;
00240
00241 int nDstXSize;
00242 int nDstYSize;
00243 GByte **papabyDstImage;
00244 GUInt32 *panDstValid;
00245 float *pafDstDensity;
00246
00247 int nSrcXOff;
00248 int nSrcYOff;
00249
00250 int nDstXOff;
00251 int nDstYOff;
00252
00253 GDALTransformerFunc pfnTransformer;
00254 void *pTransformerArg;
00255
00256 GDALProgressFunc pfnProgress;
00257 void *pProgress;
00258
00259 double dfProgressBase;
00260 double dfProgressScale;
00261
00262 CPLErr Validate();
00263 CPLErr PerformWarp();
00264 };
00265
00266
00267
00268
00269
00270
00271
00272
00273
00274
00275
00276 class CPL_DLL GDALWarpOperation {
00277 private:
00278 GDALWarpOptions *psOptions;
00279
00280 double dfProgressBase;
00281 double dfProgressScale;
00282
00283 void WipeOptions();
00284 int ValidateOptions();
00285
00286 CPLErr ComputeSourceWindow( int nDstXOff, int nDstYOff,
00287 int nDstXSize, int nDstYSize,
00288 int *pnSrcXOff, int *pnSrcYOff,
00289 int *pnSrcXSize, int *pnSrcYSize );
00290
00291 CPLErr CreateKernelMask( GDALWarpKernel *, int iBand,
00292 const char *pszType );
00293
00294 void *hThread1Mutex;
00295 void *hThread2Mutex;
00296 void *hIOMutex;
00297 void *hWarpMutex;
00298
00299 int nChunkListCount;
00300 int nChunkListMax;
00301 int *panChunkList;
00302
00303 int bReportTimings;
00304 unsigned long nLastTimeReported;
00305
00306 void WipeChunkList();
00307 CPLErr CollectChunkList( int nDstXOff, int nDstYOff,
00308 int nDstXSize, int nDstYSize );
00309 void ReportTiming( const char * );
00310
00311 public:
00312 GDALWarpOperation();
00313 virtual ~GDALWarpOperation();
00314
00315 CPLErr Initialize( const GDALWarpOptions *psNewOptions );
00316
00317 const GDALWarpOptions *GetOptions();
00318
00319 CPLErr ChunkAndWarpImage( int nDstXOff, int nDstYOff,
00320 int nDstXSize, int nDstYSize );
00321 CPLErr ChunkAndWarpMulti( int nDstXOff, int nDstYOff,
00322 int nDstXSize, int nDstYSize );
00323 CPLErr WarpRegion( int nDstXOff, int nDstYOff,
00324 int nDstXSize, int nDstYSize,
00325 int nSrcXOff=0, int nSrcYOff=0,
00326 int nSrcXSize=0, int nSrcYSize=0 );
00327
00328 CPLErr WarpRegionToBuffer( int nDstXOff, int nDstYOff,
00329 int nDstXSize, int nDstYSize,
00330 void *pDataBuf,
00331 GDALDataType eBufDataType,
00332 int nSrcXOff=0, int nSrcYOff=0,
00333 int nSrcXSize=0, int nSrcYSize=0 );
00334 };
00335
00336 #endif
00337
00338 #endif