dust3d/thirdparty/cgal/CGAL-4.13/include/CGAL/ImageIO/gis_impl.h

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// Copyright (c) 2005-2008 ASCLEPIOS Project, INRIA Sophia-Antipolis (France)
// All rights reserved.
//
// This file is part of the ImageIO Library, and as been adapted for
// CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the
// GNU Lesser General Public License as published by the Free Software Foundation;
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// These files are provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
// SPDX-License-Identifier: LGPL-3.0+
//
//
// Author(s) : ASCLEPIOS Project (INRIA Sophia-Antipolis), Laurent Rineau
#ifdef CGAL_HEADER_ONLY
#define CGAL_INLINE_FUNCTION inline
#else
#define CGAL_INLINE_FUNCTION
#endif
#include <string>
#include <sstream>
#include <cstring>
#include <CGAL/ImageIO/inr.h>
#include <CGAL/ImageIO/fgetns.h>
#define _LGTH_STRING_ 1024
CGAL_INLINE_FUNCTION
PTRIMAGE_FORMAT createGisFormat() {
PTRIMAGE_FORMAT f=(PTRIMAGE_FORMAT) ImageIO_alloc(sizeof(IMAGE_FORMAT));
f->testImageFormat=&testGisHeader;
f->readImageHeader=&readGisHeader;
f->writeImage=&writeGis;
strcpy(f->fileExtension,".dim,.dim.gz,.ima,.ima.gz");
strcpy(f->realName,"Gis");
return f;
}
CGAL_INLINE_FUNCTION
int writeGis( char *name, _image* im) {
char *outputName;
std::size_t length, extLength=0;
int res;
std::size_t done;
length=strlen(name);
outputName= (char *)ImageIO_alloc(length+8);
if ( strncmp( name+length-4, ".dim", 4 ) == 0 ) {
extLength = 4;
}
else if ( strncmp( name+length-4, ".ima", 4 ) == 0 ) {
extLength = 4;
}
else if ( strncmp( name+length-7, ".ima.gz", 7 ) == 0 ) {
extLength = 7;
}
else if ( strncmp( name+length-7, ".dim.gz", 7 ) == 0 ) {
extLength = 7;
}
strncpy( outputName, name, length-extLength );
if ( strncmp( name+length-7, ".dim.gz", 7 ) == 0 )
strcpy( outputName+length-extLength, ".dim.gz" );
else
strcpy( outputName+length-extLength, ".dim" );
_openWriteImage(im, outputName);
if( !im->fd ) {
fprintf(stderr, "writeGis: error: unable to open file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return ImageIO_OPENING;
}
if ( !writeGisHeader(im) ) {
fprintf(stderr, "writeGis: error: unable to write header of \'%s\'\n",
outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
ImageIO_close( im );
im->fd = NULL;
im->openMode = OM_CLOSE;
return -1;
}
ImageIO_close(im);
strncpy( outputName, name, length-extLength );
if ( strncmp( name+length-3, ".gz", 3 ) == 0 ) {
strcpy( outputName+length-extLength, ".ima.gz" );
}
else {
strcpy( outputName+length-extLength, ".ima" );
}
_openWriteImage(im, outputName);
if( !im->fd ) {
fprintf(stderr, "writeGis: error: unable to open file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return ImageIO_OPENING;
}
if ( im->dataMode == DM_ASCII ) {
std::size_t i, j, n, size;
char *str = (char*)ImageIO_alloc( _LGTH_STRING_+1 );
size = im->xdim * im->ydim * im->zdim * im->vdim;
n = ( im->xdim < 16 ) ? im->xdim : 16;
i = 0;
switch( im->wordKind ) {
default :
fprintf(stderr, "writeGis: such word kind not handled in ascii mode for file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
case WK_FIXED :
switch ( im->wdim ) {
default :
fprintf(stderr, "writeGis: such word dim not handled in ascii mode for file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
case 1 :
switch ( im->sign ) {
default :
fprintf(stderr, "writeGis: such sign not handled in ascii mode for file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
case SGN_UNSIGNED :
{
unsigned char *theBuf = ( unsigned char * )im->data;
do {
memset( str, 0, _LGTH_STRING_ );
for ( j=0; j<n && i<size; j++, i++ ) {
sprintf( str+strlen(str), "%d", theBuf[i] );
if ( j<n && i<size ) sprintf( str+strlen(str), " " );
}
sprintf( str+strlen(str), "\n" );
done = ImageIO_write( im, str, strlen( str ) );
res = (done == strlen( str )) ? int(done) : -1;
if ( res <= 0 ) {
fprintf(stderr, "writeGis: error when writing data in \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
}
} while ( i < size );
}
break;
case SGN_SIGNED :
{
char *theBuf = ( char * )im->data;
do {
memset( str, 0, _LGTH_STRING_ );
for ( j=0; j<n && i<size; j++, i++ ) {
sprintf( str+strlen(str), "%d", theBuf[i] );
if ( j<n && i<size ) sprintf( str+strlen(str), " " );
}
sprintf( str+strlen(str), "\n" );
done = ImageIO_write( im, str, strlen( str ) );
res = (done == strlen( str )) ? int(done) : -1;
if ( res <= 0 ) {
fprintf(stderr, "writeGis: error when writing data in \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
}
} while ( i < size );
}
break;
} /* end of switch ( im->sign ) */
break;
case 2 :
switch ( im->sign ) {
default :
fprintf(stderr, "writeGis: such sign not handled in ascii mode for file \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
case SGN_UNSIGNED :
{
unsigned short int *theBuf = ( unsigned short int * )im->data;
do {
memset( str, 0, _LGTH_STRING_ );
for ( j=0; j<n && i<size; j++, i++ ) {
sprintf( str+strlen(str), "%d", theBuf[i] );
if ( j<n && i<size ) sprintf( str+strlen(str), " " );
}
sprintf( str+strlen(str), "\n" );
done = ImageIO_write( im, str, strlen( str ) );
res = (done == strlen( str )) ? int(done) : -1;
if ( res <= 0 ) {
fprintf(stderr, "writeGis: error when writing data in \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
}
} while ( i < size );
}
break;
case SGN_SIGNED :
{
short int *theBuf = ( short int * )im->data;
do {
memset( str, 0, _LGTH_STRING_ );
for ( j=0; j<n && i<size; j++, i++ ) {
sprintf( str+strlen(str), "%d", theBuf[i] );
if ( j<n && i<size ) sprintf( str+strlen(str), " " );
}
sprintf( str+strlen(str), "\n" );
done = ImageIO_write( im, str, strlen( str ) );
res = (done == strlen( str )) ? int(done) : -1;
if ( res <= 0 ) {
fprintf(stderr, "writeGis: error when writing data in \'%s\'\n", outputName);
if ( outputName != NULL ) ImageIO_free( outputName );
return( -3 );
}
} while ( i < size );
}
break;
} /* end of switch ( im->sign ) */
break;
} /* end of switch ( im->wdim ) */
} /* end of switch( im->wordKind ) */
ImageIO_free( str );
if (outputName != NULL) ImageIO_free(outputName);
return static_cast<int>(res);
}
else {
bool ret = _writeInrimageData(im);
if (outputName != NULL) ImageIO_free(outputName);
return (ret ? 1 : -1);
}
}
CGAL_INLINE_FUNCTION
int testGisHeader(char *,const char *name) {
if (( !strncmp(name+strlen(name)-4, ".dim", 4)) ||
( !strncmp(name+strlen(name)-4, ".ima", 4)) ||
( !strncmp(name+strlen(name)-7, ".ima.gz", 7)) ||
( !strncmp(name+strlen(name)-7, ".dim.gz", 7)) )
return 0;
else
return -1;
}
CGAL_INLINE_FUNCTION
int readGisHeader( const char* name,_image* im)
{
char *s, *str = NULL;
int status;
int n=0, nusermax = 20;
str = (char*)ImageIO_alloc( _LGTH_STRING_+1 );
if ( !fgetns(str, _LGTH_STRING_, im) )
{ ImageIO_free( str ); return -1; }
std::istringstream iss;
iss.str(str);
iss >> im->xdim >> im->ydim >> im->zdim >> im->vdim;
status = (int)iss.str().length();
switch ( status ) {
case 2 : im->zdim = 1; CGAL_FALLTHROUGH;
case 3 : im->vdim = 1; CGAL_FALLTHROUGH;
case 4 : break;
default :
fprintf( stderr, "readGisHeader: unable to read dimensions in '%s'\n", name );
ImageIO_free( str );
return -1;
}
if ( im->vdim > 1 ) {
im->vectMode = VM_INTERLACED;
}
else {
im->vectMode = VM_SCALAR;
}
#define ADD_USER_STRING { \
if ( n == 0 ) { \
im->user = (char**)ImageIO_alloc( nusermax * sizeof( char*) ); \
for ( n=0; n<nusermax; n++ ) im->user[n] = NULL; \
n = 0; \
} \
im->user[n] = (char*)ImageIO_alloc( 1+strlen( s ) ); \
strcpy( im->user[n++], s ); \
}
while( fgetns( str, _LGTH_STRING_, im ) != 0 ) {
s = str;
do {
while ( *s == ' ' || *s == '\t' ) s++;
if ( !strncmp( s, "-dx ", 4 ) ) {
s += 4;
status = sscanf( s, "%lf", &(im->vx) );
if ( status != 1 ) {
fprintf( stderr, "readGisHeader: error while reading -dx in '%s'\n", s-4 );
*s = '\0';
}
else {
while ( *s == '.' || (*s >= '0' && *s <= '9') ) s++;
}
}
else if ( !strncmp( s, "-dy ", 4 ) ) {
s += 4;
status = sscanf( s, "%lf", &(im->vy) );
if ( status != 1 ) {
fprintf( stderr, "readGisHeader: error while reading -dy in '%s'\n", s-4 );
*s = '\0';
}
else {
while ( *s == '.' || (*s >= '0' && *s <= '9') ) s++;
}
}
else if ( !strncmp( s, "-dz ", 4 ) ) {
s += 4;
status = sscanf( s, "%lf", &(im->vz) );
if ( status != 1 ) {
fprintf( stderr, "readGisHeader: error while reading -dz in '%s'\n", s-4 );
*s = '\0';
}
else {
while ( *s == '.' || (*s >= '0' && *s <= '9') ) s++;
}
}
else if ( !strncmp( s, "-dt ", 4 ) ) {
ADD_USER_STRING
s += 4;
while ( *s == '.' || (*s >= '0' && *s <= '9') ) s++;
}
else if ( !strncmp( s, "-type ", 6 ) ) {
s += 6;
if ( !strncmp( s, "U8", 2 ) ) {
im->wdim = 1;
im->wordKind = WK_FIXED;
im->sign = SGN_UNSIGNED;
s += 2;
}
else if ( !strncmp( s, "S8", 2 ) ) {
im->wdim = 1;
im->wordKind = WK_FIXED;
im->sign = SGN_SIGNED;
s += 2;
}
else if ( !strncmp( s, "U16", 3 ) ) {
im->wdim = 2;
im->wordKind = WK_FIXED;
im->sign = SGN_UNSIGNED;
s += 3;
}
else if ( !strncmp( s, "S16", 3 ) ) {
im->wdim = 2;
im->wordKind = WK_FIXED;
im->sign = SGN_SIGNED;
s += 3;
}
else if ( !strncmp( s, "U32", 3 ) ) {
im->wdim = 4;
im->wordKind = WK_FIXED;
im->sign = SGN_UNSIGNED;
s += 3;
}
else if ( !strncmp( s, "S32", 3 ) ) {
im->wdim = 4;
im->wordKind = WK_FIXED;
im->sign = SGN_SIGNED;
s += 3;
}
else if ( !strncmp( s, "FLOAT", 5 ) ) {
im->wdim = sizeof( float );
im->wordKind = WK_FLOAT;
im->sign = SGN_UNKNOWN;
s += 5;
}
else if ( !strncmp( s, "DOUBLE", 6 ) ) {
im->wdim = sizeof( double );
im->wordKind = WK_FLOAT;
im->sign = SGN_UNKNOWN;
s += 6;
}
else {
fprintf( stderr, "readGisHeader: unknown type '%s'\n", s-6 );
*s = '\0';
}
}
else if ( !strncmp( s, "-bo ", 4 ) ) {
s += 4;
if ( !strncmp( s, "ABCD", 4 ) ) {
im->endianness = END_BIG;
s += 4;
}
else if ( !strncmp( s, "SUN", 3 ) ) {
im->endianness = END_BIG;
s += 3;
}
else if ( !strncmp( s, "DCBA", 4 ) ) {
im->endianness = END_LITTLE;
s += 4;
}
else if ( !strncmp( s, "ALPHA", 5 ) ) {
im->endianness = END_LITTLE;
s += 5;
}
else {
fprintf( stderr, "readGisHeader: unknown byte order '%s'\n", s-4 );
*s = '\0';
}
}
else if ( !strncmp( s, "-ar ", 4 ) ) {
s += 4;
if ( !strncmp( s, "SUN", 3 ) ) {
im->endianness = END_BIG;
s += 3;
}
else if ( !strncmp( s, "ALPHA", 5 ) ) {
im->endianness = END_LITTLE;
s += 5;
}
else {
fprintf( stderr, "readGisHeader: unknown architecture '%s'\n", s-4 );
*s = '\0';
}
}
else if ( !strncmp( s, "-om ", 4 ) ) {
s += 4;
if ( !strncmp( s, "binar", 5 ) ) {
im->dataMode = DM_BINARY;
s += 5;
}
else if ( !strncmp( s, "ascii", 5 ) ) {
im->dataMode = DM_ASCII;
s += 5;
}
else {
fprintf( stderr, "readGisHeader: unknown data type '%s'\n", s-4 );
ImageIO_free( str );
return -1;
}
}
else {
fprintf( stderr, "readGisHeader: unknown indentifier '%s'\n", s );
ADD_USER_STRING
*s = '\0';
}
} while( *s != '\0' && *s != '\n' );
}
ImageIO_free( str );
if ( im->endianness == END_UNKNOWN ) {
im->endianness = _getEndianness();
}
/* header is read. close header file and open data file. */
if( name != NULL ) {
std::size_t length = strlen(name) ;
char* data_filename = (char *) ImageIO_alloc(length+4) ;
if( strcmp( name+length-4, ".dim" ) ) {
fprintf (stderr,
"readGisHeader: error: file header extension must be .dim\n");
ImageIO_free( data_filename );
return -1;
}
ImageIO_close(im);
/* open data file
*/
strcpy(data_filename,name);
strcpy(data_filename+length-3, "ima.gz");
_openReadImage(im,data_filename);
if(!im->fd) {
strcpy(data_filename,name);
strcpy(data_filename+length-3, "ima");
_openReadImage(im,data_filename);
if(!im->fd) {
fprintf(stderr, "readGisHeader: error: unable to open data file \'%s\'\n", data_filename);
ImageIO_free( data_filename );
return -1;
}
}
ImageIO_free( data_filename );
/* read data if ascii
only U8 and S8
*/
if ( im->dataMode == DM_ASCII ) {
std::size_t size = std::size_t(im->xdim) * im->ydim * im->zdim * im->vdim * im->wdim;
unsigned int n;
char *tmp;
int ret, iv=0;
if ( im->wdim != 1 || im->wordKind != WK_FIXED ) {
fprintf(stderr, "readGisHeader: error: unable to read such ascii type\n" );
return -1;
}
n = 0 ;
if ( size <= 0 ) return -1;
if(!im->data) {
im->data = ( void*) ImageIO_alloc(size);
if(!im->data) return -1;
}
n = 0;
str = (char*)ImageIO_alloc( _LGTH_STRING_+1 );
while( fgetns( str, _LGTH_STRING_, im ) != 0 &&
n < im->xdim * im->ydim * im->zdim * im->vdim ) {
tmp = str;
while ( *tmp != '\n' && *tmp != '\0' && *tmp != EOF &&
n < im->xdim * im->ydim * im->zdim * im->vdim ) {
/* skip trailing whitespace
*/
while ( *tmp == ' ' || *tmp == '\t' )
tmp++;
if ( *tmp == '\0' || *tmp == '\n' || *tmp == EOF )
continue;
/* read a number
*/
switch ( im->wordKind ) {
case WK_FIXED :
ret = sscanf( tmp, "%d", &iv );
break;
default :
ImageIO_free( im->data ); im->data = NULL;
ImageIO_free( str );
return -1;
}
if ( ret != 1 ) {
fprintf( stderr, "readGisHeader: error in reading ascii data\n" );
ImageIO_free( im->data ); im->data = NULL;
ImageIO_free( str );
return -1;
}
if ( im->wordKind == WK_FIXED
&& im->sign == SGN_UNSIGNED
&& im->wdim == 1 ) {
unsigned char *buf = (unsigned char *)im->data;
buf += n;
if ( iv < 0 ) *buf = (unsigned char)0;
else if ( iv > 255 ) *buf = (unsigned char)255;
else *buf = (unsigned char)iv;
n ++;
}
else if ( im->wordKind == WK_FIXED
&& im->sign == SGN_SIGNED
&& im->wdim == 1 ) {
char *buf = (char *)im->data;
buf += n;
if ( iv < -128 ) *buf = (char)-128;
else if ( iv > 127 ) *buf = (char)127;
else *buf = (char)iv;
n ++;
}
else if ( im->wordKind == WK_FIXED
&& im->sign == SGN_UNSIGNED
&& im->wdim == 2 ) {
unsigned short int *buf = (unsigned short int *)im->data;
buf += n;
if ( iv < 0 ) *buf = (unsigned short int)0;
else if ( iv > 65535 ) *buf = (unsigned short int)65535;
else *buf = (unsigned short int)iv;
n ++;
}
else if ( im->wordKind == WK_FIXED
&& im->sign == SGN_SIGNED
&& im->wdim == 2 ) {
short int *buf = (short int *)im->data;
buf += n;
if ( iv < -32768 ) *buf = (short int)-32768;
else if ( iv > 32767 ) *buf = (short int)32767;
else *buf = (short int)iv;
n ++;
}
else {
ImageIO_free( im->data ); im->data = NULL;
ImageIO_free( str );
return -1;
}
/* skip a number
*/
while ( (*tmp >= '0' && *tmp <= '9') || *tmp == '.' || *tmp == '-' )
tmp++;
}
}
ImageIO_free( str );
ImageIO_close(im);
}
}
/* check header validity */
if ( im->xdim > 0 && im->ydim > 0 && im->zdim > 0 && im->vdim > 0 &&
im->vx > 0.0 && im->vy > 0.0 && im->vz > 0.0 &&
( im->wordKind == WK_FLOAT ||
(im->wordKind == WK_FIXED && im->sign != SGN_UNKNOWN) ) &&
im->endianness != END_UNKNOWN ) {
return 0;
}
return -1;
}
CGAL_INLINE_FUNCTION
bool writeGisHeader( const _image* inr )
{
const char *proc = "writeGisHeader";
std::ostringstream oss;
if ( inr->vectMode == VM_NON_INTERLACED ) {
fprintf( stderr, "%s: can not write non interlaced data\n", proc );
return false;
}
/* dimensions
*/
oss << " " << inr->xdim << " " << inr->ydim;
if ( inr->vdim > 1 ) {
oss << " " << inr->zdim << " " << inr->vdim;
}
else if ( inr->zdim > 1 ) {
oss << " " << inr->zdim;
}
oss << "\n";
/* type
*/
oss << "-type ";
switch ( inr->wordKind ) {
case WK_FIXED :
switch( inr->sign ) {
case SGN_UNSIGNED :
oss << "U" << 8*inr->wdim;
break;
case SGN_SIGNED :
oss << "S" << 8*inr->wdim;
break;
default :
fprintf( stderr, "%s: unknown wordSign\n", proc );
return false;
}
break;
case WK_FLOAT :
if ( inr->wdim == sizeof( float ) ) {
oss << "FLOAT";
}
else if ( inr->wdim == sizeof( double ) ) {
oss << "DOUBLE";
}
else {
fprintf( stderr, "%s: unknown WK_FLOAT word dim\n", proc );
return false;
}
break;
default :
fprintf( stderr, "%s: unknown wordKind for image\n", proc );
return false;
}
oss << "\n";
oss << "-dx "<< inr->vx <<"\n";
oss << "-dy "<< inr->vy <<"\n";
if ( inr->zdim > 1 )
oss << "-dz " << inr->vz << "\n";
if ( inr->wdim > 1 ) {
oss << "-bo ";
switch ( _getEndianness() ) {
default :
case END_LITTLE :
oss << "DCBA"; break;
case END_BIG :
oss << "ABCD"; break;
}
oss << "\n";
}
switch ( inr->dataMode ) {
default :
case DM_BINARY :
oss << "-om binar\n";
break;
case DM_ASCII :
oss << "-om ascii\n";
}
if( ImageIO_write( inr, oss.str().data(), oss.str().length()) == 0) {
return false;
}
return true;
}
CGAL_INLINE_FUNCTION
int writeGisData( const _image*)
{
return -1;
}