gdalwarper.h

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/******************************************************************************
 * $Id$
 *
 * Project:  GDAL High Performance Warper
 * Purpose:  Prototypes, and definitions for warping related work.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2003, Frank Warmerdam
 * Copyright (c) 2009-2012, Even Rouault <even dot rouault at spatialys.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ****************************************************************************/
 
#ifndef GDALWARPER_H_INCLUDED
#define GDALWARPER_H_INCLUDED
 
#include "gdal_alg.h"
#include "cpl_minixml.h"
#include "cpl_multiproc.h"
 
CPL_C_START
 
/* Note: values are selected to be consistent with GDALRIOResampleAlg of gcore/gdal.h */
typedef enum { GRA_NearestNeighbour=0,                         GRA_Bilinear=1,  GRA_Cubic=2,     GRA_CubicSpline=3, GRA_Lanczos=4, GRA_Average=5, GRA_Mode=6,
  /*  GRA_Gauss=7 reserved. */ GRA_Max=8, GRA_Min=9, GRA_Med=10, GRA_Q1=11, GRA_Q3=12, GRA_Sum=13, GRA_RMS=14,
  GRA_LAST_VALUE=GRA_RMS
} GDALResampleAlg;
 
typedef enum { GWKAOM_Average=1, GWKAOM_Fmode=2, GWKAOM_Imode=3, GWKAOM_Max=4, GWKAOM_Min=5, GWKAOM_Quant=6, GWKAOM_Sum=7, GWKAOM_RMS=8
} GWKAverageOrModeAlg;
 
typedef int
(*GDALMaskFunc)( void *pMaskFuncArg,
                 int nBandCount, GDALDataType eType,
                 int nXOff, int nYOff,
                 int nXSize, int nYSize,
                 GByte **papabyImageData,
                 int bMaskIsFloat, void *pMask );
 
CPLErr CPL_DLL
GDALWarpNoDataMasker( void *pMaskFuncArg, int nBandCount, GDALDataType eType,
                      int nXOff, int nYOff, int nXSize, int nYSize,
                      GByte **papabyImageData, int bMaskIsFloat,
                      void *pValidityMask, int* pbOutAllValid );
 
CPLErr CPL_DLL
GDALWarpDstAlphaMasker( void *pMaskFuncArg, int nBandCount, GDALDataType eType,
                        int nXOff, int nYOff, int nXSize, int nYSize,
                        GByte ** /*ppImageData */,
                        int bMaskIsFloat, void *pValidityMask );
CPLErr CPL_DLL
GDALWarpSrcAlphaMasker( void *pMaskFuncArg, int nBandCount, GDALDataType eType,
                        int nXOff, int nYOff, int nXSize, int nYSize,
                        GByte ** /*ppImageData */,
                        int bMaskIsFloat, void *pValidityMask, int* pbOutAllOpaque );
 
CPLErr CPL_DLL
GDALWarpSrcMaskMasker( void *pMaskFuncArg, int nBandCount, GDALDataType eType,
                       int nXOff, int nYOff, int nXSize, int nYSize,
                       GByte ** /*ppImageData */,
                       int bMaskIsFloat, void *pValidityMask );
 
CPLErr CPL_DLL
GDALWarpCutlineMasker( void *pMaskFuncArg, int nBandCount, GDALDataType eType,
                       int nXOff, int nYOff, int nXSize, int nYSize,
                       GByte ** /* ppImageData */,
                       int bMaskIsFloat, void *pValidityMask );
/************************************************************************/
/*                           GDALWarpOptions                            */
/************************************************************************/
 
typedef struct {
 
    char              **papszWarpOptions;
 
    double              dfWarpMemoryLimit;
 
    GDALResampleAlg     eResampleAlg;
 
    GDALDataType        eWorkingDataType;
 
    GDALDatasetH        hSrcDS;
 
    GDALDatasetH        hDstDS;
 
    int                 nBandCount;
 
    int                *panSrcBands;
 
    int                *panDstBands;
 
    int                nSrcAlphaBand;
 
    int                nDstAlphaBand;
 
    double             *padfSrcNoDataReal;
    double             *padfSrcNoDataImag;
 
    double             *padfDstNoDataReal;
    double             *padfDstNoDataImag;
 
    GDALProgressFunc    pfnProgress;
 
    void               *pProgressArg;
 
    GDALTransformerFunc pfnTransformer;
 
    void                *pTransformerArg;
 
    GDALMaskFunc       *papfnSrcPerBandValidityMaskFunc;
    void              **papSrcPerBandValidityMaskFuncArg;
 
    GDALMaskFunc        pfnSrcValidityMaskFunc;
    void               *pSrcValidityMaskFuncArg;
 
    GDALMaskFunc        pfnSrcDensityMaskFunc;
    void               *pSrcDensityMaskFuncArg;
 
    GDALMaskFunc        pfnDstDensityMaskFunc;
    void               *pDstDensityMaskFuncArg;
 
    GDALMaskFunc        pfnDstValidityMaskFunc;
    void               *pDstValidityMaskFuncArg;
 
    CPLErr              (*pfnPreWarpChunkProcessor)( void *pKern, void *pArg );
    void               *pPreWarpProcessorArg;
 
    CPLErr              (*pfnPostWarpChunkProcessor)( void *pKern, void *pArg);
    void               *pPostWarpProcessorArg;
 
    void               *hCutline;
 
    double              dfCutlineBlendDist;
 
} GDALWarpOptions;
 
GDALWarpOptions CPL_DLL * CPL_STDCALL GDALCreateWarpOptions(void);
void CPL_DLL CPL_STDCALL GDALDestroyWarpOptions( GDALWarpOptions * );
GDALWarpOptions CPL_DLL * CPL_STDCALL
GDALCloneWarpOptions( const GDALWarpOptions * );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitDstNoDataReal( GDALWarpOptions *, double dNoDataReal );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitSrcNoDataReal( GDALWarpOptions *, double dNoDataReal );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitNoDataReal( GDALWarpOptions *, double dNoDataReal );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitDstNoDataImag( GDALWarpOptions *, double dNoDataImag );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitSrcNoDataImag( GDALWarpOptions *, double dNoDataImag );
 
void CPL_DLL CPL_STDCALL
GDALWarpResolveWorkingDataType( GDALWarpOptions * );
 
void CPL_DLL CPL_STDCALL
GDALWarpInitDefaultBandMapping( GDALWarpOptions *, int nBandCount );
 
CPLXMLNode CPL_DLL * CPL_STDCALL
      GDALSerializeWarpOptions( const GDALWarpOptions * );
GDALWarpOptions CPL_DLL * CPL_STDCALL
      GDALDeserializeWarpOptions( CPLXMLNode * );
/************************************************************************/
/*                         GDALReprojectImage()                         */
/************************************************************************/
 
CPLErr CPL_DLL CPL_STDCALL
GDALReprojectImage( GDALDatasetH hSrcDS, const char *pszSrcWKT,
                    GDALDatasetH hDstDS, const char *pszDstWKT,
                    GDALResampleAlg eResampleAlg, double dfWarpMemoryLimit,
                    double dfMaxError,
                    GDALProgressFunc pfnProgress, void *pProgressArg,
                    GDALWarpOptions *psOptions );
 
CPLErr CPL_DLL CPL_STDCALL
GDALCreateAndReprojectImage( GDALDatasetH hSrcDS, const char *pszSrcWKT,
                    const char *pszDstFilename, const char *pszDstWKT,
                    GDALDriverH hDstDriver, char **papszCreateOptions,
                    GDALResampleAlg eResampleAlg, double dfWarpMemoryLimit,
                    double dfMaxError,
                    GDALProgressFunc pfnProgress, void *pProgressArg,
                    GDALWarpOptions *psOptions );
 
/************************************************************************/
/*                           VRTWarpedDataset                           */
/************************************************************************/
 
GDALDatasetH CPL_DLL CPL_STDCALL
GDALAutoCreateWarpedVRT( GDALDatasetH hSrcDS,
                         const char *pszSrcWKT, const char *pszDstWKT,
                         GDALResampleAlg eResampleAlg,
                         double dfMaxError, const GDALWarpOptions *psOptions );
 
GDALDatasetH CPL_DLL CPL_STDCALL
GDALAutoCreateWarpedVRTEx( GDALDatasetH hSrcDS,
                           const char *pszSrcWKT, const char *pszDstWKT,
                           GDALResampleAlg eResampleAlg,
                           double dfMaxError, const GDALWarpOptions *psOptions,
                           CSLConstList papszTransformerOptions );
 
GDALDatasetH CPL_DLL CPL_STDCALL
GDALCreateWarpedVRT( GDALDatasetH hSrcDS,
                     int nPixels, int nLines, double *padfGeoTransform,
                     GDALWarpOptions *psOptions );
 
CPLErr CPL_DLL CPL_STDCALL
GDALInitializeWarpedVRT( GDALDatasetH hDS,
                         GDALWarpOptions *psWO );
 
CPL_C_END
 
#if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
 
#include <vector>
#include <utility>
 
/************************************************************************/
/*                            GDALWarpKernel                            */
/*                                                                      */
 
#define WARP_EXTRA_ELTS    1
 
class CPL_DLL GDALWarpKernel
{
    CPL_DISALLOW_COPY_ASSIGN(GDALWarpKernel)
 
public:
    char              **papszWarpOptions;
 
    GDALResampleAlg     eResample;
    GDALDataType        eWorkingDataType;
    int                 nBands;
 
    int                 nSrcXSize;
    int                 nSrcYSize;
    double              dfSrcXExtraSize;
    double              dfSrcYExtraSize;
    GByte               **papabySrcImage;
 
    GUInt32           **papanBandSrcValid;
    GUInt32            *panUnifiedSrcValid;
    float              *pafUnifiedSrcDensity;
 
    int                 nDstXSize;
    int                 nDstYSize;
    GByte             **papabyDstImage;
    GUInt32            *panDstValid;
    float              *pafDstDensity;
 
    double              dfXScale;
    double              dfYScale;
    double              dfXFilter;
    double              dfYFilter;
    int                 nXRadius;
    int                 nYRadius;
    int                 nFiltInitX;
    int                 nFiltInitY;
 
    int                 nSrcXOff;
    int                 nSrcYOff;
 
    int                 nDstXOff;
    int                 nDstYOff;
 
    GDALTransformerFunc pfnTransformer;
    void                *pTransformerArg;
 
    GDALProgressFunc    pfnProgress;
    void                *pProgress;
 
    double              dfProgressBase;
    double              dfProgressScale;
 
    double              *padfDstNoDataReal;
 
    void                *psThreadData;
 
    bool                bApplyVerticalShift = false;
 
    double              dfMultFactorVerticalShift = 1.0;
                       GDALWarpKernel();
    virtual           ~GDALWarpKernel();
 
    CPLErr              Validate();
    CPLErr              PerformWarp();
};
 
void* GWKThreadsCreate(char** papszWarpOptions,
                       GDALTransformerFunc pfnTransformer,
                       void* pTransformerArg);
void GWKThreadsEnd(void* psThreadDataIn);
/************************************************************************/
/*                         GDALWarpOperation()                          */
/*                                                                      */
/*      This object is application created, or created by a higher      */
/*      level convenience function.  It is responsible for              */
/*      subdividing the operation into chunks, loading and saving       */
/*      imagery, and establishing the varios validity and density       */
/*      masks.  Actual resampling is done by the GDALWarpKernel.        */
/************************************************************************/
 
typedef struct _GDALWarpChunk GDALWarpChunk;
class CPL_DLL GDALWarpOperation {
 
    CPL_DISALLOW_COPY_ASSIGN(GDALWarpOperation)
 
private:
    GDALWarpOptions *psOptions;
 
    void            WipeOptions();
    int             ValidateOptions();
 
    CPLErr          ComputeSourceWindow( int nDstXOff, int nDstYOff,
                                         int nDstXSize, int nDstYSize,
                                         int *pnSrcXOff, int *pnSrcYOff,
                                         int *pnSrcXSize, int *pnSrcYSize,
                                         double *pdfSrcXExtraSize, double *pdfSrcYExtraSize,
                                         double* pdfSrcFillRatio );
 
    void            ComputeSourceWindowStartingFromSource(
                                    int nDstXOff, int nDstYOff,
                                    int nDstXSize, int nDstYSize,
                                    double* padfSrcMinX, double* padfSrcMinY,
                                    double* padfSrcMaxX, double* padfSrcMaxY);
 
    static CPLErr          CreateKernelMask( GDALWarpKernel *, int iBand,
                                      const char *pszType );
 
    CPLMutex        *hIOMutex;
    CPLMutex        *hWarpMutex;
 
    int             nChunkListCount;
    int             nChunkListMax;
    GDALWarpChunk  *pasChunkList;
 
    int             bReportTimings;
    unsigned long   nLastTimeReported;
 
    void           *psThreadData;
 
    // Coordinates a few special points in target image space, to determine
    // if ComputeSourceWindow() must use a grid based sampling.
    std::vector<std::pair<double, double>> aDstXYSpecialPoints{};
 
    bool m_bIsTranslationOnPixelBoundaries = false;
 
    void            WipeChunkList();
    CPLErr          CollectChunkListInternal( int nDstXOff, int nDstYOff,
                                      int nDstXSize, int nDstYSize );
    void            CollectChunkList( int nDstXOff, int nDstYOff,
                                      int nDstXSize, int nDstYSize );
    void            ReportTiming( const char * );
 
public:
                    GDALWarpOperation();
    virtual        ~GDALWarpOperation();
 
    CPLErr          Initialize( const GDALWarpOptions *psNewOptions );
    void*           CreateDestinationBuffer( int nDstXSize, int nDstYSize,
                                             int *pbWasInitialized = nullptr );
    static void     DestroyDestinationBuffer(void* pDstBuffer);
 
    const GDALWarpOptions         *GetOptions();
 
    CPLErr          ChunkAndWarpImage( int nDstXOff, int nDstYOff,
                                       int nDstXSize, int nDstYSize );
    CPLErr          ChunkAndWarpMulti( int nDstXOff, int nDstYOff,
                                       int nDstXSize, int nDstYSize );
    CPLErr          WarpRegion( int nDstXOff, int nDstYOff,
                                int nDstXSize, int nDstYSize,
                                int nSrcXOff=0, int nSrcYOff=0,
                                int nSrcXSize=0, int nSrcYSize=0,
                                double dfProgressBase=0.0, double dfProgressScale=1.0);
    CPLErr          WarpRegion( int nDstXOff, int nDstYOff,
                                int nDstXSize, int nDstYSize,
                                int nSrcXOff, int nSrcYOff,
                                int nSrcXSize, int nSrcYSize,
                                double dfSrcXExtraSize, double dfSrcYExtraSize,
                                double dfProgressBase, double dfProgressScale);
    CPLErr          WarpRegionToBuffer( int nDstXOff, int nDstYOff,
                                        int nDstXSize, int nDstYSize,
                                        void *pDataBuf,
                                        GDALDataType eBufDataType,
                                        int nSrcXOff=0, int nSrcYOff=0,
                                        int nSrcXSize=0, int nSrcYSize=0,
                                        double dfProgressBase=0.0, double dfProgressScale=1.0);
    CPLErr          WarpRegionToBuffer( int nDstXOff, int nDstYOff,
                                        int nDstXSize, int nDstYSize,
                                        void *pDataBuf,
                                        GDALDataType eBufDataType,
                                        int nSrcXOff, int nSrcYOff,
                                        int nSrcXSize, int nSrcYSize,
                                        double dfSrcXExtraSize, double dfSrcYExtraSize,
                                        double dfProgressBase, double dfProgressScale);
};
 
#endif /* def __cplusplus */
 
CPL_C_START
 
typedef void * GDALWarpOperationH;
 
GDALWarpOperationH CPL_DLL GDALCreateWarpOperation(const GDALWarpOptions* );
void CPL_DLL GDALDestroyWarpOperation( GDALWarpOperationH );
CPLErr CPL_DLL GDALChunkAndWarpImage( GDALWarpOperationH, int, int, int, int );
CPLErr CPL_DLL GDALChunkAndWarpMulti( GDALWarpOperationH, int, int, int, int );
CPLErr CPL_DLL GDALWarpRegion( GDALWarpOperationH,
                               int, int, int, int, int, int, int, int );
CPLErr CPL_DLL GDALWarpRegionToBuffer( GDALWarpOperationH, int, int, int, int,
                                       void *, GDALDataType,
                                       int, int, int, int );
 
/************************************************************************/
/*      Warping kernel functions                                        */
/************************************************************************/
 
int GWKGetFilterRadius(GDALResampleAlg eResampleAlg);
 
typedef double (*FilterFuncType)(double dfX);
FilterFuncType GWKGetFilterFunc(GDALResampleAlg eResampleAlg);
 
// TODO(schwehr): Can padfVals be a const pointer?
typedef double (*FilterFunc4ValuesType)(double* padfVals);
FilterFunc4ValuesType GWKGetFilterFunc4Values(GDALResampleAlg eResampleAlg);
CPL_C_END
 
#endif /* ndef GDAL_ALG_H_INCLUDED */