/usr/include/gdal/gdal_alg_priv.h is in libgdal-dev 1.11.3+dfsg-3build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id: gdal_alg_priv.h 27044 2014-03-16 23:41:27Z rouault $
*
* Project: GDAL Image Processing Algorithms
* Purpose: Prototypes and definitions for various GDAL based algorithms:
* private declarations.
* Author: Andrey Kiselev, dron@ak4719.spb.edu
*
******************************************************************************
* Copyright (c) 2008, Andrey Kiselev <dron@ak4719.spb.edu>
* Copyright (c) 2010-2013, Even Rouault <even dot rouault at mines-paris dot org>
*
* 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 GDAL_ALG_PRIV_H_INCLUDED
#define GDAL_ALG_PRIV_H_INCLUDED
#include "gdal_alg.h"
CPL_C_START
/** Source of the burn value */
typedef enum {
/*! Use value from padfBurnValue */ GBV_UserBurnValue = 0,
/*! Use value from the Z coordinate */ GBV_Z = 1,
/*! Use value form the M value */ GBV_M = 2
} GDALBurnValueSrc;
typedef enum {
GRMA_Replace = 0,
GRMA_Add = 1,
} GDALRasterMergeAlg;
typedef struct {
unsigned char * pabyChunkBuf;
int nXSize;
int nYSize;
int nBands;
GDALDataType eType;
double *padfBurnValue;
GDALBurnValueSrc eBurnValueSource;
GDALRasterMergeAlg eMergeAlg;
} GDALRasterizeInfo;
/************************************************************************/
/* Low level rasterizer API. */
/************************************************************************/
typedef void (*llScanlineFunc)( void *, int, int, int, double );
typedef void (*llPointFunc)( void *, int, int, double );
void GDALdllImagePoint( int nRasterXSize, int nRasterYSize,
int nPartCount, int *panPartSize,
double *padfX, double *padfY, double *padfVariant,
llPointFunc pfnPointFunc, void *pCBData );
void GDALdllImageLine( int nRasterXSize, int nRasterYSize,
int nPartCount, int *panPartSize,
double *padfX, double *padfY, double *padfVariant,
llPointFunc pfnPointFunc, void *pCBData );
void GDALdllImageLineAllTouched(int nRasterXSize, int nRasterYSize,
int nPartCount, int *panPartSize,
double *padfX, double *padfY,
double *padfVariant,
llPointFunc pfnPointFunc, void *pCBData );
void GDALdllImageFilledPolygon(int nRasterXSize, int nRasterYSize,
int nPartCount, int *panPartSize,
double *padfX, double *padfY,
double *padfVariant,
llScanlineFunc pfnScanlineFunc, void *pCBData );
CPL_C_END
/************************************************************************/
/* Polygon Enumerator */
/************************************************************************/
class GDALRasterPolygonEnumerator
{
private:
void MergePolygon( int nSrcId, int nDstId );
int NewPolygon( GInt32 nValue );
public: // these are intended to be readonly.
GInt32 *panPolyIdMap;
GInt32 *panPolyValue;
int nNextPolygonId;
int nPolyAlloc;
int nConnectedness;
public:
GDALRasterPolygonEnumerator( int nConnectedness=4 );
~GDALRasterPolygonEnumerator();
void ProcessLine( GInt32 *panLastLineVal, GInt32 *panThisLineVal,
GInt32 *panLastLineId, GInt32 *panThisLineId,
int nXSize );
void CompleteMerges();
void Clear();
};
#ifdef OGR_ENABLED
/************************************************************************/
/* Polygon Enumerator */
/* */
/* Buffers has float values instead og GInt32 */
/************************************************************************/
class GDALRasterFPolygonEnumerator
{
private:
void MergePolygon( int nSrcId, int nDstId );
int NewPolygon( float fValue );
public: // these are intended to be readonly.
GInt32 *panPolyIdMap;
float *pafPolyValue;
int nNextPolygonId;
int nPolyAlloc;
int nConnectedness;
public:
GDALRasterFPolygonEnumerator( int nConnectedness=4 );
~GDALRasterFPolygonEnumerator();
void ProcessLine( float *pafLastLineVal, float *pafThisLineVal,
GInt32 *panLastLineId, GInt32 *panThisLineId,
int nXSize );
void CompleteMerges();
void Clear();
};
#endif
typedef void* (*GDALTransformDeserializeFunc)( CPLXMLNode *psTree );
void* GDALRegisterTransformDeserializer(const char* pszTransformName,
GDALTransformerFunc pfnTransformerFunc,
GDALTransformDeserializeFunc pfnDeserializeFunc);
void GDALUnregisterTransformDeserializer(void* pData);
void GDALCleanupTransformDeserializerMutex();
/* Transformer cloning */
void* GDALCloneTPSTransformer( void *pTransformArg );
void* GDALCloneGenImgProjTransformer( void *pTransformArg );
void* GDALCloneApproxTransformer( void *pTransformArg );
/* TODO : GDALCloneGeoLocTransformer? , GDALCloneRPCTransformer? */
void* GDALCreateTPSTransformerInt( int nGCPCount, const GDAL_GCP *pasGCPList,
int bReversed, char** papszOptions );
void CPL_DLL * GDALCloneTransformer( void *pTranformerArg );
/************************************************************************/
/* Float comparison function. */
/************************************************************************/
/**
* Units in the Last Place. This specifies how big an error we are willing to
* accept in terms of the value of the least significant digit of the floating
* point number’s representation. MAX_ULPS can also be interpreted in terms of
* how many representable floats we are willing to accept between A and B.
*/
#define MAX_ULPS 10
GBool GDALFloatEquals(float A, float B);
#endif /* ndef GDAL_ALG_PRIV_H_INCLUDED */
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