shpopen.c File Reference

#include "shapefil.h"
#include <math.h>
#include <limits.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>

Include dependency graph for shpopen.c:

Go to the source code of this file.

Macros
#define	FALSE   0
#define	TRUE   1
#define	ByteCopy(a, b, c)   memcpy( b, a, c )
#define	MIN(a, b)   ((a<b) ? a : b)
#define	MAX(a, b)   ((a>b) ? a : b)
#define	CPL_UNUSED
#define	STATIC_CAST(type, x)   ((type)(x))
#define	SHPLIB_NULLPTR   NULL

Typedefs
typedef unsigned char	uchar
typedef unsigned int	int32

Functions
static void	SwapWord (int length, void *wordP)
static void *	SfRealloc (void *pMem, int nNewSize)
void SHPAPI_CALL	SHPWriteHeader (SHPHandle psSHP)
SHPHandle SHPAPI_CALL	SHPOpen (const char *pszLayer, const char *pszAccess)
static int	SHPGetLenWithoutExtension (const char *pszBasename)
SHPHandle SHPAPI_CALL	SHPOpenLL (const char *pszLayer, const char *pszAccess, SAHooks *psHooks)
SHPHandle SHPAPI_CALL	SHPOpenLLEx (const char *pszLayer, const char *pszAccess, SAHooks *psHooks, int bRestoreSHX)
int SHPAPI_CALL	SHPRestoreSHX (const char *pszLayer, const char *pszAccess, SAHooks *psHooks)
void SHPAPI_CALL	SHPClose (SHPHandle psSHP)
void SHPAPI_CALL	SHPSetFastModeReadObject (SHPHandle hSHP, int bFastMode)
void SHPAPI_CALL	SHPGetInfo (SHPHandle psSHP, int *pnEntities, int *pnShapeType, double *padfMinBound, double *padfMaxBound)
SHPHandle SHPAPI_CALL	SHPCreate (const char *pszLayer, int nShapeType)
SHPHandle SHPAPI_CALL	SHPCreateLL (const char *pszLayer, int nShapeType, SAHooks *psHooks)
static void	_SHPSetBounds (uchar *pabyRec, SHPObject *psShape)
void SHPAPI_CALL	SHPComputeExtents (SHPObject *psObject)
SHPObject SHPAPI_CALL1 *	SHPCreateObject (int nSHPType, int nShapeId, int nParts, const int *panPartStart, const int *panPartType, int nVertices, const double *padfX, const double *padfY, const double *padfZ, const double *padfM){ SHPObject *psObject;int i, bHasM, bHasZ;psObject=STATIC_CAST(SHPObject *, calloc(1, sizeof(SHPObject))
	if (nSHPType==SHPT_ARCM||nSHPType==SHPT_POINTM||nSHPType==SHPT_POLYGONM||nSHPType==SHPT_MULTIPOINTM)
	if (nVertices > 0)
	SHPComputeExtents (psObject)
	return (psObject)
SHPObject SHPAPI_CALL1 *	SHPCreateSimpleObject (int nSHPType, int nVertices, const double *padfX, const double *padfY, const double *padfZ){ return(SHPCreateObject(nSHPType, -1, 0, SHPLIB_NULLPTR, SHPLIB_NULLPTR, nVertices, padfX, padfY, padfZ, SHPLIB_NULLPTR)
int SHPAPI_CALL	SHPWriteObject (SHPHandle psSHP, int nShapeId, SHPObject *psObject)
static void *	SHPAllocBuffer (unsigned char **pBuffer, int nSize)
static unsigned char *	SHPReallocObjectBufIfNecessary (SHPHandle psSHP, int nObjectBufSize)
SHPObject SHPAPI_CALL1 *	SHPReadObject (SHPHandle psSHP, int hEntity){ int nEntitySize, nRequiredSize;SHPObject *psShape;char szErrorMsg[160];int nSHPType;int nBytesRead;if(hEntity< 0||hEntity >=psSHP->nRecords) return SHPLIB_NULLPTR;if(psSHP->panRecOffset[hEntity]==0 &&psSHP->fpSHX !=SHPLIB_NULLPTR
	if (nEntitySize > psSHP->nBufSize)
	if (psSHP->pabyRec==SHPLIB_NULLPTR)
	if (psSHP->sHooks.FSeek(psSHP->fpSHP, psSHP->panRecOffset[hEntity], 0) !=0)
	if (nBytesRead >=8 &&nBytesRead==nEntitySize - 8)
else	if (nBytesRead !=nEntitySize)
	if (8+4 > nEntitySize)
	if (bBigEndian)
	if (psShape->nSHPType==SHPT_POLYGON||psShape->nSHPType==SHPT_ARC||psShape->nSHPType==SHPT_POLYGONZ||psShape->nSHPType==SHPT_POLYGONM||psShape->nSHPType==SHPT_ARCZ||psShape->nSHPType==SHPT_ARCM||psShape->nSHPType==SHPT_MULTIPATCH)
	return (psShape)
const char SHPAPI_CALL1 *	SHPTypeName (int nSHPType){ switch(nSHPType
const char SHPAPI_CALL1 *	SHPPartTypeName (int nPartType){ switch(nPartType
void SHPAPI_CALL	SHPDestroyObject (SHPObject *psShape)
static int	SHPGetPartVertexCount (const SHPObject *psObject, int iPart)
static int	SHPRewindIsInnerRing (const SHPObject *psObject, int iOpRing, double dfTestX, double dfTestY)
int SHPAPI_CALL	SHPRewindObject (CPL_UNUSED SHPHandle hSHP, SHPObject *psObject)

Variables
static int	bBigEndian
psObject	nSHPType = nSHPType
psObject	nShapeId = nShapeId
psObject	bMeasureIsUsed = FALSE
	else
	bHasZ = FALSE
psObject	nVertices = nVertices
	nEntitySize = psSHP->panRecSize[hEntity]+8
	nBytesRead = STATIC_CAST(int, psSHP->sHooks.FRead( psSHP->pabyRec, 1, nEntitySize, psSHP->fpSHP ))
else	psShape = STATIC_CAST(SHPObject *, calloc(1,sizeof(SHPObject)))
psShape	bFastModeReadObject = psSHP->bFastModeReadObject