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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
# include "precomp.hpp"
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# include <ctype.h>
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# include <deque>
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# include <sstream>
# include <string>
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# include <iterator>
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# define USE_ZLIB 1
# if USE_ZLIB
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# ifndef _LFS64_LARGEFILE
# define _LFS64_LARGEFILE 0
# endif
# ifndef _FILE_OFFSET_BITS
# define _FILE_OFFSET_BITS 0
# endif
# include <zlib.h>
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# else
typedef void * gzFile ;
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# endif
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/****************************************************************************************\
* Common macros and type definitions *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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# define cv_isprint(c) ((uchar)(c) >= (uchar)' ')
# define cv_isprint_or_tab(c) ((uchar)(c) >= (uchar)' ' || (c) == '\t')
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static inline bool cv_isalnum ( char c )
{
return ( ' 0 ' < = c & & c < = ' 9 ' ) | | ( ' a ' < = c & & c < = ' z ' ) | | ( ' A ' < = c & & c < = ' Z ' ) ;
}
static inline bool cv_isalpha ( char c )
{
return ( ' a ' < = c & & c < = ' z ' ) | | ( ' A ' < = c & & c < = ' Z ' ) ;
}
static inline bool cv_isdigit ( char c )
{
return ' 0 ' < = c & & c < = ' 9 ' ;
}
static inline bool cv_isspace ( char c )
{
return ( 9 < = c & & c < = 13 ) | | c = = ' ' ;
}
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static inline char * cv_skip_BOM ( char * ptr )
{
if ( ( uchar ) ptr [ 0 ] = = 0xef & & ( uchar ) ptr [ 1 ] = = 0xbb & & ( uchar ) ptr [ 2 ] = = 0xbf ) //UTF-8 BOM
{
return ptr + 3 ;
}
return ptr ;
}
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static char * icv_itoa ( int _val , char * buffer , int /*radix*/ )
{
const int radix = 10 ;
char * ptr = buffer + 23 /* enough even for 64-bit integers */ ;
unsigned val = abs ( _val ) ;
* ptr = ' \0 ' ;
do
{
unsigned r = val / radix ;
* - - ptr = ( char ) ( val - ( r * radix ) + ' 0 ' ) ;
val = r ;
}
while ( val ! = 0 ) ;
if ( _val < 0 )
* - - ptr = ' - ' ;
return ptr ;
}
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static inline bool cv_strcasecmp ( const char * s1 , const char * s2 )
{
if ( s1 = = 0 & & s2 = = 0 )
return true ;
else if ( s1 = = 0 | | s2 = = 0 )
return false ;
size_t len1 = strlen ( s1 ) ;
size_t len2 = strlen ( s2 ) ;
if ( len1 ! = len2 )
return false ;
for ( size_t i = 0U ; i < len1 ; i + + )
if ( tolower ( static_cast < int > ( s1 [ i ] ) ) ! = tolower ( static_cast < int > ( s2 [ i ] ) ) )
return false ;
return true ;
}
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cv : : String cv : : FileStorage : : getDefaultObjectName ( const cv : : String & _filename )
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{
static const char * stubname = " unnamed " ;
const char * filename = _filename . c_str ( ) ;
const char * ptr2 = filename + _filename . size ( ) ;
const char * ptr = ptr2 - 1 ;
cv : : AutoBuffer < char > name_buf ( _filename . size ( ) + 1 ) ;
while ( ptr > = filename & & * ptr ! = ' \\ ' & & * ptr ! = ' / ' & & * ptr ! = ' : ' )
{
if ( * ptr = = ' . ' & & ( ! * ptr2 | | strncmp ( ptr2 , " .gz " , 3 ) = = 0 ) )
ptr2 = ptr ;
ptr - - ;
}
ptr + + ;
if ( ptr = = ptr2 )
CV_Error ( CV_StsBadArg , " Invalid filename " ) ;
char * name = name_buf ;
// name must start with letter or '_'
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if ( ! cv_isalpha ( * ptr ) & & * ptr ! = ' _ ' ) {
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* name + + = ' _ ' ;
}
while ( ptr < ptr2 )
{
char c = * ptr + + ;
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if ( ! cv_isalnum ( c ) & & c ! = ' - ' & & c ! = ' _ ' )
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c = ' _ ' ;
* name + + = c ;
}
* name = ' \0 ' ;
name = name_buf ;
if ( strcmp ( name , " _ " ) = = 0 )
strcpy ( name , stubname ) ;
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return String ( name ) ;
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}
typedef struct CvGenericHash
{
CV_SET_FIELDS ( )
int tab_size ;
void * * table ;
}
CvGenericHash ;
typedef CvGenericHash CvStringHash ;
typedef struct CvFileMapNode
{
CvFileNode value ;
const CvStringHashNode * key ;
struct CvFileMapNode * next ;
}
CvFileMapNode ;
typedef struct CvXMLStackRecord
{
CvMemStoragePos pos ;
CvString struct_tag ;
int struct_indent ;
int struct_flags ;
}
CvXMLStackRecord ;
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namespace base64
{
class Base64Writer ;
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namespace fs
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{
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enum State
{
Uncertain ,
NotUse ,
InUse ,
} ;
}
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}
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# define CV_XML_OPENING_TAG 1
# define CV_XML_CLOSING_TAG 2
# define CV_XML_EMPTY_TAG 3
# define CV_XML_HEADER_TAG 4
# define CV_XML_DIRECTIVE_TAG 5
//typedef void (*CvParse)( struct CvFileStorage* fs );
typedef void ( * CvStartWriteStruct ) ( struct CvFileStorage * fs , const char * key ,
int struct_flags , const char * type_name ) ;
typedef void ( * CvEndWriteStruct ) ( struct CvFileStorage * fs ) ;
typedef void ( * CvWriteInt ) ( struct CvFileStorage * fs , const char * key , int value ) ;
typedef void ( * CvWriteReal ) ( struct CvFileStorage * fs , const char * key , double value ) ;
typedef void ( * CvWriteString ) ( struct CvFileStorage * fs , const char * key ,
const char * value , int quote ) ;
typedef void ( * CvWriteComment ) ( struct CvFileStorage * fs , const char * comment , int eol_comment ) ;
typedef void ( * CvStartNextStream ) ( struct CvFileStorage * fs ) ;
typedef struct CvFileStorage
{
int flags ;
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int fmt ;
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int write_mode ;
int is_first ;
CvMemStorage * memstorage ;
CvMemStorage * dststorage ;
CvMemStorage * strstorage ;
CvStringHash * str_hash ;
CvSeq * roots ;
CvSeq * write_stack ;
int struct_indent ;
int struct_flags ;
CvString struct_tag ;
int space ;
char * filename ;
FILE * file ;
gzFile gzfile ;
char * buffer ;
char * buffer_start ;
char * buffer_end ;
int wrap_margin ;
int lineno ;
int dummy_eof ;
const char * errmsg ;
char errmsgbuf [ 128 ] ;
CvStartWriteStruct start_write_struct ;
CvEndWriteStruct end_write_struct ;
CvWriteInt write_int ;
CvWriteReal write_real ;
CvWriteString write_string ;
CvWriteComment write_comment ;
CvStartNextStream start_next_stream ;
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const char * strbuf ;
size_t strbufsize , strbufpos ;
std : : deque < char > * outbuf ;
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base64 : : Base64Writer * base64_writer ;
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bool is_default_using_base64 ;
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base64 : : fs : : State state_of_writing_base64 ; /**< used in WriteRawData only */
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bool is_write_struct_delayed ;
char * delayed_struct_key ;
int delayed_struct_flags ;
char * delayed_type_name ;
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bool is_opened ;
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}
CvFileStorage ;
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namespace base64
{
static const size_t HEADER_SIZE = 24U ;
static const size_t ENCODED_HEADER_SIZE = 32U ;
/* base64 */
typedef uchar uint8_t ;
extern uint8_t const base64_padding ;
extern uint8_t const base64_mapping [ 65 ] ;
extern uint8_t const base64_demapping [ 127 ] ;
size_t base64_encode ( uint8_t const * src , uint8_t * dst , size_t off , size_t cnt ) ;
size_t base64_encode ( char const * src , char * dst , size_t off = 0U , size_t cnt = 0U ) ;
size_t base64_decode ( uint8_t const * src , uint8_t * dst , size_t off , size_t cnt ) ;
size_t base64_decode ( char const * src , char * dst , size_t off = 0U , size_t cnt = 0U ) ;
bool base64_valid ( uint8_t const * src , size_t off , size_t cnt ) ;
bool base64_valid ( char const * src , size_t off = 0U , size_t cnt = 0U ) ;
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size_t base64_encode_buffer_size ( size_t cnt , bool is_end_with_zero = true ) ;
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size_t base64_decode_buffer_size ( size_t cnt , bool is_end_with_zero = true ) ;
size_t base64_decode_buffer_size ( size_t cnt , char const * src , bool is_end_with_zero = true ) ;
size_t base64_decode_buffer_size ( size_t cnt , uchar const * src , bool is_end_with_zero = true ) ;
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/* binary */
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template < typename _uint_t > inline size_t to_binary ( _uint_t val , uchar * cur ) ;
template < > inline size_t to_binary ( double val , uchar * cur ) ;
template < > inline size_t to_binary ( float val , uchar * cur ) ;
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template < typename _primitive_t > inline size_t to_binary ( uchar const * val , uchar * cur ) ;
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template < typename _uint_t > inline size_t binary_to ( uchar const * cur , _uint_t & val ) ;
template < > inline size_t binary_to ( uchar const * cur , double & val ) ;
template < > inline size_t binary_to ( uchar const * cur , float & val ) ;
template < typename _primitive_t > inline size_t binary_to ( uchar const * cur , uchar * val ) ;
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class RawDataToBinaryConvertor ;
class BinaryToCvSeqConvertor ;
/* class */
class Base64ContextParser
{
public :
explicit Base64ContextParser ( uchar * buffer , size_t size ) ;
~ Base64ContextParser ( ) ;
Base64ContextParser & read ( const uchar * beg , const uchar * end ) ;
bool flush ( ) ;
private :
static const size_t BUFFER_LEN = 120U ;
uchar * dst_cur ;
uchar * dst_end ;
std : : vector < uchar > base64_buffer ;
uchar * src_beg ;
uchar * src_cur ;
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uchar * src_end ;
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std : : vector < uchar > binary_buffer ;
} ;
class Base64ContextEmitter ;
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class Base64Writer
{
public :
Base64Writer ( : : CvFileStorage * fs ) ;
~ Base64Writer ( ) ;
void write ( const void * _data , size_t len , const char * dt ) ;
template < typename _to_binary_convertor_t > void write ( _to_binary_convertor_t & convertor , const char * dt ) ;
private :
void check_dt ( const char * dt ) ;
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private :
// disable copy and assignment
Base64Writer ( const Base64Writer & ) ;
Base64Writer & operator = ( const Base64Writer & ) ;
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private :
Base64ContextEmitter * emitter ;
std : : string data_type_string ;
} ;
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/* other */
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std : : string make_base64_header ( const char * dt ) ;
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bool read_base64_header ( std : : vector < char > const & header , std : : string & dt ) ;
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void make_seq ( void * binary_data , int elem_cnt , const char * dt , CvSeq & seq ) ;
/* sample */
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void cvWriteRawDataBase64 ( : : CvFileStorage * fs , const void * _data , int len , const char * dt ) ;
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}
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static void icvPuts ( CvFileStorage * fs , const char * str )
{
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if ( fs - > outbuf )
std : : copy ( str , str + strlen ( str ) , std : : back_inserter ( * fs - > outbuf ) ) ;
else if ( fs - > file )
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fputs ( str , fs - > file ) ;
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# if USE_ZLIB
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else if ( fs - > gzfile )
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gzputs ( fs - > gzfile , str ) ;
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# endif
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else
CV_Error ( CV_StsError , " The storage is not opened " ) ;
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}
static char * icvGets ( CvFileStorage * fs , char * str , int maxCount )
{
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if ( fs - > strbuf )
{
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size_t i = fs - > strbufpos , len = fs - > strbufsize ;
int j = 0 ;
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const char * instr = fs - > strbuf ;
while ( i < len & & j < maxCount - 1 )
{
char c = instr [ i + + ] ;
if ( c = = ' \0 ' )
break ;
str [ j + + ] = c ;
if ( c = = ' \n ' )
break ;
}
str [ j + + ] = ' \0 ' ;
fs - > strbufpos = i ;
return j > 1 ? str : 0 ;
}
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if ( fs - > file )
return fgets ( str , maxCount , fs - > file ) ;
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# if USE_ZLIB
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if ( fs - > gzfile )
return gzgets ( fs - > gzfile , str , maxCount ) ;
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# endif
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CV_Error ( CV_StsError , " The storage is not opened " ) ;
return 0 ;
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}
static int icvEof ( CvFileStorage * fs )
{
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if ( fs - > strbuf )
return fs - > strbufpos > = fs - > strbufsize ;
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if ( fs - > file )
return feof ( fs - > file ) ;
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# if USE_ZLIB
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if ( fs - > gzfile )
return gzeof ( fs - > gzfile ) ;
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# endif
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return false ;
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}
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static void icvCloseFile ( CvFileStorage * fs )
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{
if ( fs - > file )
fclose ( fs - > file ) ;
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# if USE_ZLIB
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else if ( fs - > gzfile )
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gzclose ( fs - > gzfile ) ;
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# endif
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fs - > file = 0 ;
fs - > gzfile = 0 ;
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fs - > strbuf = 0 ;
fs - > strbufpos = 0 ;
fs - > is_opened = false ;
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}
static void icvRewind ( CvFileStorage * fs )
{
if ( fs - > file )
rewind ( fs - > file ) ;
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# if USE_ZLIB
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else if ( fs - > gzfile )
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gzrewind ( fs - > gzfile ) ;
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# endif
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fs - > strbufpos = 0 ;
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}
# define CV_YML_INDENT 3
# define CV_XML_INDENT 2
# define CV_YML_INDENT_FLOW 1
# define CV_FS_MAX_LEN 4096
# define CV_FILE_STORAGE ('Y' + ('A' << 8) + ('M' << 16) + ('L' << 24))
# define CV_IS_FILE_STORAGE(fs) ((fs) != 0 && (fs)->flags == CV_FILE_STORAGE)
# define CV_CHECK_FILE_STORAGE(fs) \
{ \
if ( ! CV_IS_FILE_STORAGE ( fs ) ) \
CV_Error ( ( fs ) ? CV_StsBadArg : CV_StsNullPtr , \
" Invalid pointer to file storage " ) ; \
}
# define CV_CHECK_OUTPUT_FILE_STORAGE(fs) \
{ \
CV_CHECK_FILE_STORAGE ( fs ) ; \
if ( ! fs - > write_mode ) \
CV_Error ( CV_StsError , " The file storage is opened for reading " ) ; \
}
CV_IMPL const char *
cvAttrValue ( const CvAttrList * attr , const char * attr_name )
{
while ( attr & & attr - > attr )
{
int i ;
for ( i = 0 ; attr - > attr [ i * 2 ] ! = 0 ; i + + )
{
if ( strcmp ( attr_name , attr - > attr [ i * 2 ] ) = = 0 )
return attr - > attr [ i * 2 + 1 ] ;
}
attr = attr - > next ;
}
return 0 ;
}
static CvGenericHash *
cvCreateMap ( int flags , int header_size , int elem_size ,
CvMemStorage * storage , int start_tab_size )
{
if ( header_size < ( int ) sizeof ( CvGenericHash ) )
CV_Error ( CV_StsBadSize , " Too small map header_size " ) ;
if ( start_tab_size < = 0 )
start_tab_size = 16 ;
CvGenericHash * map = ( CvGenericHash * ) cvCreateSet ( flags , header_size , elem_size , storage ) ;
map - > tab_size = start_tab_size ;
start_tab_size * = sizeof ( map - > table [ 0 ] ) ;
map - > table = ( void * * ) cvMemStorageAlloc ( storage , start_tab_size ) ;
memset ( map - > table , 0 , start_tab_size ) ;
return map ;
}
# define CV_PARSE_ERROR( errmsg ) \
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icvParseError ( fs , CV_Func , ( errmsg ) , __FILE__ , __LINE__ )
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static void
icvParseError ( CvFileStorage * fs , const char * func_name ,
const char * err_msg , const char * source_file , int source_line )
{
char buf [ 1 < < 10 ] ;
sprintf ( buf , " %s(%d): %s " , fs - > filename , fs - > lineno , err_msg ) ;
cvError ( CV_StsParseError , func_name , buf , source_file , source_line ) ;
}
static void
icvFSCreateCollection ( CvFileStorage * fs , int tag , CvFileNode * collection )
{
if ( CV_NODE_IS_MAP ( tag ) )
{
if ( collection - > tag ! = CV_NODE_NONE )
{
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assert ( fs - > fmt = = CV_STORAGE_FORMAT_XML ) ;
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CV_PARSE_ERROR ( " Sequence element should not have name (use <_></_>) " ) ;
}
collection - > data . map = cvCreateMap ( 0 , sizeof ( CvFileNodeHash ) ,
sizeof ( CvFileMapNode ) , fs - > memstorage , 16 ) ;
}
else
{
CvSeq * seq ;
seq = cvCreateSeq ( 0 , sizeof ( CvSeq ) , sizeof ( CvFileNode ) , fs - > memstorage ) ;
// if <collection> contains some scalar element, add it to the newly created collection
if ( CV_NODE_TYPE ( collection - > tag ) ! = CV_NODE_NONE )
cvSeqPush ( seq , collection ) ;
collection - > data . seq = seq ;
}
collection - > tag = tag ;
cvSetSeqBlockSize ( collection - > data . seq , 8 ) ;
}
/*static void
icvFSReleaseCollection ( CvSeq * seq )
{
if ( seq )
{
int is_map = CV_IS_SET ( seq ) ;
CvSeqReader reader ;
int i , total = seq - > total ;
cvStartReadSeq ( seq , & reader , 0 ) ;
for ( i = 0 ; i < total ; i + + )
{
CvFileNode * node = ( CvFileNode * ) reader . ptr ;
if ( ( ! is_map | | CV_IS_SET_ELEM ( node ) ) & & CV_NODE_IS_COLLECTION ( node - > tag ) )
{
if ( CV_NODE_IS_USER ( node - > tag ) & & node - > info & & node - > data . obj . decoded )
cvRelease ( ( void * * ) & node - > data . obj . decoded ) ;
if ( ! CV_NODE_SEQ_IS_SIMPLE ( node - > data . seq ) )
icvFSReleaseCollection ( node - > data . seq ) ;
}
CV_NEXT_SEQ_ELEM ( seq - > elem_size , reader ) ;
}
}
} */
static char *
icvFSDoResize ( CvFileStorage * fs , char * ptr , int len )
{
char * new_ptr = 0 ;
int written_len = ( int ) ( ptr - fs - > buffer_start ) ;
int new_size = ( int ) ( ( fs - > buffer_end - fs - > buffer_start ) * 3 / 2 ) ;
new_size = MAX ( written_len + len , new_size ) ;
new_ptr = ( char * ) cvAlloc ( new_size + 256 ) ;
fs - > buffer = new_ptr + ( fs - > buffer - fs - > buffer_start ) ;
if ( written_len > 0 )
memcpy ( new_ptr , fs - > buffer_start , written_len ) ;
fs - > buffer_start = new_ptr ;
fs - > buffer_end = fs - > buffer_start + new_size ;
new_ptr + = written_len ;
return new_ptr ;
}
inline char * icvFSResizeWriteBuffer ( CvFileStorage * fs , char * ptr , int len )
{
return ptr + len < fs - > buffer_end ? ptr : icvFSDoResize ( fs , ptr , len ) ;
}
static char *
icvFSFlush ( CvFileStorage * fs )
{
char * ptr = fs - > buffer ;
int indent ;
if ( ptr > fs - > buffer_start + fs - > space )
{
ptr [ 0 ] = ' \n ' ;
ptr [ 1 ] = ' \0 ' ;
icvPuts ( fs , fs - > buffer_start ) ;
fs - > buffer = fs - > buffer_start ;
}
indent = fs - > struct_indent ;
if ( fs - > space ! = indent )
{
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memset ( fs - > buffer_start , ' ' , indent ) ;
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fs - > space = indent ;
}
ptr = fs - > buffer = fs - > buffer_start + fs - > space ;
return ptr ;
}
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static void
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icvClose ( CvFileStorage * fs , cv : : String * out )
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{
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if ( out )
out - > clear ( ) ;
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if ( ! fs )
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CV_Error ( CV_StsNullPtr , " NULL double pointer to file storage " ) ;
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if ( fs - > is_opened )
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{
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if ( fs - > write_mode & & ( fs - > file | | fs - > gzfile | | fs - > outbuf ) )
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{
if ( fs - > write_stack )
{
while ( fs - > write_stack - > total > 0 )
cvEndWriteStruct ( fs ) ;
}
icvFSFlush ( fs ) ;
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if ( fs - > fmt = = CV_STORAGE_FORMAT_XML )
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icvPuts ( fs , " </opencv_storage> \n " ) ;
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else if ( fs - > fmt = = CV_STORAGE_FORMAT_JSON )
icvPuts ( fs , " } \n " ) ;
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}
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icvCloseFile ( fs ) ;
}
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if ( fs - > outbuf & & out )
{
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* out = cv : : String ( fs - > outbuf - > begin ( ) , fs - > outbuf - > end ( ) ) ;
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}
}
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/* closes file storage and deallocates buffers */
CV_IMPL void
cvReleaseFileStorage ( CvFileStorage * * p_fs )
{
if ( ! p_fs )
CV_Error ( CV_StsNullPtr , " NULL double pointer to file storage " ) ;
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if ( * p_fs )
{
CvFileStorage * fs = * p_fs ;
* p_fs = 0 ;
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icvClose ( fs , 0 ) ;
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cvReleaseMemStorage ( & fs - > strstorage ) ;
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cvFree ( & fs - > buffer_start ) ;
cvReleaseMemStorage ( & fs - > memstorage ) ;
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delete fs - > outbuf ;
delete fs - > base64_writer ;
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delete [ ] fs - > delayed_struct_key ;
delete [ ] fs - > delayed_type_name ;
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memset ( fs , 0 , sizeof ( * fs ) ) ;
cvFree ( & fs ) ;
}
}
# define CV_HASHVAL_SCALE 33
CV_IMPL CvStringHashNode *
cvGetHashedKey ( CvFileStorage * fs , const char * str , int len , int create_missing )
{
CvStringHashNode * node = 0 ;
unsigned hashval = 0 ;
int i , tab_size ;
if ( ! fs )
return 0 ;
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CvStringHash * map = fs - > str_hash ;
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if ( len < 0 )
{
for ( i = 0 ; str [ i ] ! = ' \0 ' ; i + + )
hashval = hashval * CV_HASHVAL_SCALE + ( unsigned char ) str [ i ] ;
len = i ;
}
else for ( i = 0 ; i < len ; i + + )
hashval = hashval * CV_HASHVAL_SCALE + ( unsigned char ) str [ i ] ;
hashval & = INT_MAX ;
tab_size = map - > tab_size ;
if ( ( tab_size & ( tab_size - 1 ) ) = = 0 )
i = ( int ) ( hashval & ( tab_size - 1 ) ) ;
else
i = ( int ) ( hashval % tab_size ) ;
for ( node = ( CvStringHashNode * ) ( map - > table [ i ] ) ; node ! = 0 ; node = node - > next )
{
if ( node - > hashval = = hashval & &
node - > str . len = = len & &
memcmp ( node - > str . ptr , str , len ) = = 0 )
break ;
}
if ( ! node & & create_missing )
{
node = ( CvStringHashNode * ) cvSetNew ( ( CvSet * ) map ) ;
node - > hashval = hashval ;
node - > str = cvMemStorageAllocString ( map - > storage , str , len ) ;
node - > next = ( CvStringHashNode * ) ( map - > table [ i ] ) ;
map - > table [ i ] = node ;
}
return node ;
}
CV_IMPL CvFileNode *
cvGetFileNode ( CvFileStorage * fs , CvFileNode * _map_node ,
const CvStringHashNode * key ,
int create_missing )
{
CvFileNode * value = 0 ;
int k = 0 , attempts = 1 ;
if ( ! fs )
return 0 ;
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! key )
CV_Error ( CV_StsNullPtr , " Null key element " ) ;
if ( _map_node )
{
if ( ! fs - > roots )
return 0 ;
attempts = fs - > roots - > total ;
}
for ( k = 0 ; k < attempts ; k + + )
{
int i , tab_size ;
CvFileNode * map_node = _map_node ;
CvFileMapNode * another ;
CvFileNodeHash * map ;
if ( ! map_node )
map_node = ( CvFileNode * ) cvGetSeqElem ( fs - > roots , k ) ;
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CV_Assert ( map_node ! = NULL ) ;
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if ( ! CV_NODE_IS_MAP ( map_node - > tag ) )
{
if ( ( ! CV_NODE_IS_SEQ ( map_node - > tag ) | | map_node - > data . seq - > total ! = 0 ) & &
CV_NODE_TYPE ( map_node - > tag ) ! = CV_NODE_NONE )
CV_Error ( CV_StsError , " The node is neither a map nor an empty collection " ) ;
return 0 ;
}
map = map_node - > data . map ;
tab_size = map - > tab_size ;
if ( ( tab_size & ( tab_size - 1 ) ) = = 0 )
i = ( int ) ( key - > hashval & ( tab_size - 1 ) ) ;
else
i = ( int ) ( key - > hashval % tab_size ) ;
for ( another = ( CvFileMapNode * ) ( map - > table [ i ] ) ; another ! = 0 ; another = another - > next )
if ( another - > key = = key )
{
if ( ! create_missing )
{
value = & another - > value ;
return value ;
}
CV_PARSE_ERROR ( " Duplicated key " ) ;
}
if ( k = = attempts - 1 & & create_missing )
{
CvFileMapNode * node = ( CvFileMapNode * ) cvSetNew ( ( CvSet * ) map ) ;
node - > key = key ;
node - > next = ( CvFileMapNode * ) ( map - > table [ i ] ) ;
map - > table [ i ] = node ;
value = ( CvFileNode * ) node ;
}
}
return value ;
}
CV_IMPL CvFileNode *
cvGetFileNodeByName ( const CvFileStorage * fs , const CvFileNode * _map_node , const char * str )
{
CvFileNode * value = 0 ;
int i , len , tab_size ;
unsigned hashval = 0 ;
int k = 0 , attempts = 1 ;
if ( ! fs )
return 0 ;
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! str )
CV_Error ( CV_StsNullPtr , " Null element name " ) ;
for ( i = 0 ; str [ i ] ! = ' \0 ' ; i + + )
hashval = hashval * CV_HASHVAL_SCALE + ( unsigned char ) str [ i ] ;
hashval & = INT_MAX ;
len = i ;
if ( ! _map_node )
{
if ( ! fs - > roots )
return 0 ;
attempts = fs - > roots - > total ;
}
for ( k = 0 ; k < attempts ; k + + )
{
CvFileNodeHash * map ;
const CvFileNode * map_node = _map_node ;
CvFileMapNode * another ;
if ( ! map_node )
map_node = ( CvFileNode * ) cvGetSeqElem ( fs - > roots , k ) ;
if ( ! CV_NODE_IS_MAP ( map_node - > tag ) )
{
if ( ( ! CV_NODE_IS_SEQ ( map_node - > tag ) | | map_node - > data . seq - > total ! = 0 ) & &
CV_NODE_TYPE ( map_node - > tag ) ! = CV_NODE_NONE )
CV_Error ( CV_StsError , " The node is neither a map nor an empty collection " ) ;
return 0 ;
}
map = map_node - > data . map ;
tab_size = map - > tab_size ;
if ( ( tab_size & ( tab_size - 1 ) ) = = 0 )
i = ( int ) ( hashval & ( tab_size - 1 ) ) ;
else
i = ( int ) ( hashval % tab_size ) ;
for ( another = ( CvFileMapNode * ) ( map - > table [ i ] ) ; another ! = 0 ; another = another - > next )
{
const CvStringHashNode * key = another - > key ;
if ( key - > hashval = = hashval & &
key - > str . len = = len & &
memcmp ( key - > str . ptr , str , len ) = = 0 )
{
value = & another - > value ;
return value ;
}
}
}
return value ;
}
CV_IMPL CvFileNode *
cvGetRootFileNode ( const CvFileStorage * fs , int stream_index )
{
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! fs - > roots | | ( unsigned ) stream_index > = ( unsigned ) fs - > roots - > total )
return 0 ;
return ( CvFileNode * ) cvGetSeqElem ( fs - > roots , stream_index ) ;
}
/* returns the sequence element by its index */
/*CV_IMPL CvFileNode*
cvGetFileNodeFromSeq ( CvFileStorage * fs ,
CvFileNode * seq_node , int index )
{
CvFileNode * value = 0 ;
CvSeq * seq ;
if ( ! seq_node )
seq = fs - > roots ;
else if ( ! CV_NODE_IS_SEQ ( seq_node - > tag ) )
{
if ( CV_NODE_IS_MAP ( seq_node - > tag ) )
CV_Error ( CV_StsError , " The node is map. Use cvGetFileNodeFromMap(). " ) ;
if ( CV_NODE_TYPE ( seq_node - > tag ) = = CV_NODE_NONE )
CV_Error ( CV_StsError , " The node is an empty object (None). " ) ;
if ( index ! = 0 & & index ! = - 1 )
CV_Error ( CV_StsOutOfRange , " " ) ;
value = seq_node ;
EXIT ;
}
else
seq = seq_node - > data . seq ;
if ( ! seq )
CV_Error ( CV_StsNullPtr , " The file storage is empty " ) ;
value = ( CvFileNode * ) cvGetSeqElem ( seq , index , 0 ) ;
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return value ;
} */
static char *
icvDoubleToString ( char * buf , double value )
{
Cv64suf val ;
unsigned ieee754_hi ;
val . f = value ;
ieee754_hi = ( unsigned ) ( val . u > > 32 ) ;
if ( ( ieee754_hi & 0x7ff00000 ) ! = 0x7ff00000 )
{
int ivalue = cvRound ( value ) ;
if ( ivalue = = value )
sprintf ( buf , " %d. " , ivalue ) ;
else
{
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static const char * fmt = " %.16e " ;
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char * ptr = buf ;
sprintf ( buf , fmt , value ) ;
if ( * ptr = = ' + ' | | * ptr = = ' - ' )
ptr + + ;
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for ( ; cv_isdigit ( * ptr ) ; ptr + + )
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;
if ( * ptr = = ' , ' )
* ptr = ' . ' ;
}
}
else
{
unsigned ieee754_lo = ( unsigned ) val . u ;
if ( ( ieee754_hi & 0x7fffffff ) + ( ieee754_lo ! = 0 ) > 0x7ff00000 )
strcpy ( buf , " .Nan " ) ;
else
strcpy ( buf , ( int ) ieee754_hi < 0 ? " -.Inf " : " .Inf " ) ;
}
return buf ;
}
static char *
icvFloatToString ( char * buf , float value )
{
Cv32suf val ;
unsigned ieee754 ;
val . f = value ;
ieee754 = val . u ;
if ( ( ieee754 & 0x7f800000 ) ! = 0x7f800000 )
{
int ivalue = cvRound ( value ) ;
if ( ivalue = = value )
sprintf ( buf , " %d. " , ivalue ) ;
else
{
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static const char * fmt = " %.8e " ;
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char * ptr = buf ;
sprintf ( buf , fmt , value ) ;
if ( * ptr = = ' + ' | | * ptr = = ' - ' )
ptr + + ;
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for ( ; cv_isdigit ( * ptr ) ; ptr + + )
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;
if ( * ptr = = ' , ' )
* ptr = ' . ' ;
}
}
else
{
if ( ( ieee754 & 0x7fffffff ) ! = 0x7f800000 )
strcpy ( buf , " .Nan " ) ;
else
strcpy ( buf , ( int ) ieee754 < 0 ? " -.Inf " : " .Inf " ) ;
}
return buf ;
}
static void
icvProcessSpecialDouble ( CvFileStorage * fs , char * buf , double * value , char * * endptr )
{
char c = buf [ 0 ] ;
int inf_hi = 0x7ff00000 ;
if ( c = = ' - ' | | c = = ' + ' )
{
inf_hi = c = = ' - ' ? 0xfff00000 : 0x7ff00000 ;
c = * + + buf ;
}
if ( c ! = ' . ' )
CV_PARSE_ERROR ( " Bad format of floating-point constant " ) ;
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union { double d ; uint64 i ; } v ;
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v . d = 0. ;
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if ( toupper ( buf [ 1 ] ) = = ' I ' & & toupper ( buf [ 2 ] ) = = ' N ' & & toupper ( buf [ 3 ] ) = = ' F ' )
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v . i = ( uint64 ) inf_hi < < 32 ;
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else if ( toupper ( buf [ 1 ] ) = = ' N ' & & toupper ( buf [ 2 ] ) = = ' A ' & & toupper ( buf [ 3 ] ) = = ' N ' )
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v . i = ( uint64 ) - 1 ;
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else
CV_PARSE_ERROR ( " Bad format of floating-point constant " ) ;
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* value = v . d ;
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* endptr = buf + 4 ;
}
static double icv_strtod ( CvFileStorage * fs , char * ptr , char * * endptr )
{
double fval = strtod ( ptr , endptr ) ;
if ( * * endptr = = ' . ' )
{
char * dot_pos = * endptr ;
* dot_pos = ' , ' ;
double fval2 = strtod ( ptr , endptr ) ;
* dot_pos = ' . ' ;
if ( * endptr > dot_pos )
fval = fval2 ;
else
* endptr = dot_pos ;
}
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if ( * endptr = = ptr | | cv_isalpha ( * * endptr ) )
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icvProcessSpecialDouble ( fs , ptr , & fval , endptr ) ;
return fval ;
}
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// this function will convert "aa?bb&cc&dd" to {"aa", "bb", "cc", "dd"}
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static std : : vector < std : : string > analyze_file_name ( std : : string const & file_name )
{
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static const char not_file_name = ' \n ' ;
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static const char parameter_begin = ' ? ' ;
static const char parameter_separator = ' & ' ;
std : : vector < std : : string > result ;
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if ( file_name . find ( not_file_name , 0U ) ! = std : : string : : npos )
return result ;
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size_t beg = file_name . find_last_of ( parameter_begin ) ;
size_t end = file_name . size ( ) ;
result . push_back ( file_name . substr ( 0U , beg ) ) ;
if ( beg ! = std : : string : : npos )
{
beg + + ;
for ( size_t param_beg = beg , param_end = beg ;
param_end < end ;
param_beg = param_end + 1U )
{
param_end = file_name . find_first_of ( parameter_separator , param_beg ) ;
if ( ( param_end = = std : : string : : npos | | param_end ! = param_beg ) & & param_beg + 1U < end )
{
result . push_back ( file_name . substr ( param_beg , param_end - param_beg ) ) ;
}
}
}
return result ;
}
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static bool is_param_exist ( const std : : vector < std : : string > & params , const std : : string & param )
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{
if ( params . size ( ) < 2U )
return false ;
return std : : find ( params . begin ( ) , params . end ( ) , param ) ! = params . end ( ) ;
}
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static void switch_to_Base64_state ( CvFileStorage * fs , base64 : : fs : : State state )
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{
const char * err_unkonwn_state = " Unexpected error, unable to determine the Base64 state. " ;
const char * err_unable_to_switch = " Unexpected error, unable to switch to this state. " ;
/* like a finite state machine */
switch ( fs - > state_of_writing_base64 )
{
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case base64 : : fs : : Uncertain :
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switch ( state )
{
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case base64 : : fs : : InUse :
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CV_DbgAssert ( fs - > base64_writer = = 0 ) ;
fs - > base64_writer = new base64 : : Base64Writer ( fs ) ;
break ;
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case base64 : : fs : : Uncertain :
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break ;
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case base64 : : fs : : NotUse :
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break ;
default :
CV_Error ( CV_StsError , err_unkonwn_state ) ;
break ;
}
break ;
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case base64 : : fs : : InUse :
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switch ( state )
{
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case base64 : : fs : : InUse :
case base64 : : fs : : NotUse :
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CV_Error ( CV_StsError , err_unable_to_switch ) ;
break ;
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case base64 : : fs : : Uncertain :
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delete fs - > base64_writer ;
fs - > base64_writer = 0 ;
break ;
default :
CV_Error ( CV_StsError , err_unkonwn_state ) ;
break ;
}
break ;
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case base64 : : fs : : NotUse :
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switch ( state )
{
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case base64 : : fs : : InUse :
case base64 : : fs : : NotUse :
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CV_Error ( CV_StsError , err_unable_to_switch ) ;
break ;
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case base64 : : fs : : Uncertain :
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break ;
default :
CV_Error ( CV_StsError , err_unkonwn_state ) ;
break ;
}
break ;
default :
CV_Error ( CV_StsError , err_unkonwn_state ) ;
break ;
}
fs - > state_of_writing_base64 = state ;
}
static void check_if_write_struct_is_delayed ( CvFileStorage * fs , bool change_type_to_base64 = false )
{
if ( fs - > is_write_struct_delayed )
{
/* save data to prevent recursive call errors */
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std : : string struct_key ;
std : : string type_name ;
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int struct_flags = fs - > delayed_struct_flags ;
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if ( fs - > delayed_struct_key ! = 0 & & * fs - > delayed_struct_key ! = ' \0 ' )
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{
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struct_key . assign ( fs - > delayed_struct_key ) ;
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}
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if ( fs - > delayed_type_name ! = 0 & & * fs - > delayed_type_name ! = ' \0 ' )
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{
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type_name . assign ( fs - > delayed_type_name ) ;
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}
/* reset */
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delete [ ] fs - > delayed_struct_key ;
delete [ ] fs - > delayed_type_name ;
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fs - > delayed_struct_key = 0 ;
fs - > delayed_struct_flags = 0 ;
fs - > delayed_type_name = 0 ;
fs - > is_write_struct_delayed = false ;
/* call */
if ( change_type_to_base64 )
{
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fs - > start_write_struct ( fs , struct_key . c_str ( ) , struct_flags , " binary " ) ;
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if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
switch_to_Base64_state ( fs , base64 : : fs : : InUse ) ;
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}
else
{
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fs - > start_write_struct ( fs , struct_key . c_str ( ) , struct_flags , type_name . c_str ( ) ) ;
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if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
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}
}
}
static void make_write_struct_delayed (
CvFileStorage * fs ,
const char * key ,
int struct_flags ,
const char * type_name )
{
CV_Assert ( fs - > is_write_struct_delayed = = false ) ;
CV_DbgAssert ( fs - > delayed_struct_key = = 0 ) ;
CV_DbgAssert ( fs - > delayed_struct_flags = = 0 ) ;
CV_DbgAssert ( fs - > delayed_type_name = = 0 ) ;
fs - > delayed_struct_flags = struct_flags ;
if ( key ! = 0 )
{
fs - > delayed_struct_key = new char [ strlen ( key ) + 1U ] ;
strcpy ( fs - > delayed_struct_key , key ) ;
}
if ( type_name ! = 0 )
{
fs - > delayed_type_name = new char [ strlen ( type_name ) + 1U ] ;
strcpy ( fs - > delayed_type_name , type_name ) ;
}
fs - > is_write_struct_delayed = true ;
}
2016-08-05 15:17:21 +08:00
static const size_t PARSER_BASE64_BUFFER_SIZE = 1024U * 1024U / 8U ;
2010-05-12 01:44:00 +08:00
/****************************************************************************************\
* YAML Parser *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static char *
icvYMLSkipSpaces ( CvFileStorage * fs , char * ptr , int min_indent , int max_comment_indent )
{
for ( ; ; )
{
while ( * ptr = = ' ' )
ptr + + ;
if ( * ptr = = ' # ' )
{
if ( ptr - fs - > buffer_start > max_comment_indent )
return ptr ;
* ptr = ' \0 ' ;
}
else if ( cv_isprint ( * ptr ) )
{
if ( ptr - fs - > buffer_start < min_indent )
CV_PARSE_ERROR ( " Incorrect indentation " ) ;
break ;
}
else if ( * ptr = = ' \0 ' | | * ptr = = ' \n ' | | * ptr = = ' \r ' )
{
int max_size = ( int ) ( fs - > buffer_end - fs - > buffer_start ) ;
ptr = icvGets ( fs , fs - > buffer_start , max_size ) ;
if ( ! ptr )
{
// emulate end of stream
ptr = fs - > buffer_start ;
ptr [ 0 ] = ptr [ 1 ] = ptr [ 2 ] = ' . ' ;
ptr [ 3 ] = ' \0 ' ;
fs - > dummy_eof = 1 ;
break ;
}
else
{
int l = ( int ) strlen ( ptr ) ;
if ( ptr [ l - 1 ] ! = ' \n ' & & ptr [ l - 1 ] ! = ' \r ' & & ! icvEof ( fs ) )
CV_PARSE_ERROR ( " Too long string or a last string w/o newline " ) ;
}
fs - > lineno + + ;
}
else
CV_PARSE_ERROR ( * ptr = = ' \t ' ? " Tabs are prohibited in YAML! " : " Invalid character " ) ;
}
return ptr ;
}
2016-06-18 21:40:29 +08:00
static void icvYMLGetMultilineStringContent ( CvFileStorage * fs ,
char * ptr , int indent , char * & beg , char * & end )
{
ptr = icvYMLSkipSpaces ( fs , ptr , 0 , INT_MAX ) ;
beg = ptr ;
end = ptr ;
if ( fs - > dummy_eof )
return ; /* end of file */
if ( ptr - fs - > buffer_start ! = indent )
return ; /* end of string */
/* find end */
while ( cv_isprint ( * ptr ) ) /* no check for base64 string */
+ + ptr ;
if ( * ptr = = ' \0 ' )
CV_PARSE_ERROR ( " Unexpected end of line " ) ;
end = ptr ;
}
static int icvCalcStructSize ( const char * dt , int initial_size ) ;
static char * icvYMLParseBase64 ( CvFileStorage * fs , char * ptr , int indent , CvFileNode * node )
{
char * beg = 0 ;
char * end = 0 ;
icvYMLGetMultilineStringContent ( fs , ptr , indent , beg , end ) ;
if ( beg > = end )
return end ; // CV_PARSE_ERROR("Empty Binary Data");
/* calc (decoded) total_byte_size from header */
std : : string dt ;
{
2016-06-18 23:28:12 +08:00
if ( end - beg < static_cast < int > ( base64 : : ENCODED_HEADER_SIZE ) )
2016-06-18 21:40:29 +08:00
CV_PARSE_ERROR ( " Unrecognized Base64 header " ) ;
std : : vector < char > header ( base64 : : HEADER_SIZE + 1 , ' ' ) ;
base64 : : base64_decode ( beg , header . data ( ) , 0U , base64 : : ENCODED_HEADER_SIZE ) ;
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if ( ! base64 : : read_base64_header ( header , dt ) | | dt . empty ( ) )
2016-08-11 03:31:35 +08:00
CV_PARSE_ERROR ( " Invalid `dt` in Base64 header " ) ;
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beg + = base64 : : ENCODED_HEADER_SIZE ;
}
2016-07-19 15:54:38 +08:00
/* get all Base64 data */
std : : string base64_buffer ;
2016-08-05 15:17:21 +08:00
base64_buffer . reserve ( PARSER_BASE64_BUFFER_SIZE ) ;
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while ( beg < end )
2016-06-18 21:40:29 +08:00
{
2016-07-19 15:54:38 +08:00
base64_buffer . append ( beg , end ) ;
beg = end ;
icvYMLGetMultilineStringContent ( fs , beg , indent , beg , end ) ;
}
2017-05-17 22:36:48 +08:00
if ( base64_buffer . empty ( ) | |
! base64 : : base64_valid ( base64_buffer . data ( ) , 0U , base64_buffer . size ( ) ) )
2016-07-19 15:54:38 +08:00
CV_PARSE_ERROR ( " Invalid Base64 data. " ) ;
2016-06-18 21:40:29 +08:00
2016-07-19 15:54:38 +08:00
/* buffer for decoded data(exclude header) */
std : : vector < uchar > binary_buffer ( base64 : : base64_decode_buffer_size ( base64_buffer . size ( ) ) ) ;
2016-07-19 19:56:57 +08:00
int total_byte_size = static_cast < int > (
base64 : : base64_decode_buffer_size ( base64_buffer . size ( ) , base64_buffer . data ( ) , false )
) ;
2016-07-19 15:54:38 +08:00
{
base64 : : Base64ContextParser parser ( binary_buffer . data ( ) , binary_buffer . size ( ) ) ;
const uchar * buffer_beg = reinterpret_cast < const uchar * > ( base64_buffer . data ( ) ) ;
const uchar * buffer_end = buffer_beg + base64_buffer . size ( ) ;
parser . read ( buffer_beg , buffer_end ) ;
parser . flush ( ) ;
2016-06-18 21:40:29 +08:00
}
2016-07-19 15:54:38 +08:00
2016-06-18 21:40:29 +08:00
/* save as CvSeq */
int elem_size = : : icvCalcStructSize ( dt . c_str ( ) , 0 ) ;
if ( total_byte_size % elem_size ! = 0 )
CV_PARSE_ERROR ( " Byte size not match elememt size " ) ;
int elem_cnt = total_byte_size / elem_size ;
node - > tag = CV_NODE_NONE ;
2016-07-19 15:54:38 +08:00
int struct_flags = CV_NODE_FLOW | CV_NODE_SEQ ;
/* after icvFSCreateCollection, node->tag == struct_flags */
2016-06-18 21:40:29 +08:00
icvFSCreateCollection ( fs , struct_flags , node ) ;
2016-07-19 15:54:38 +08:00
base64 : : make_seq ( binary_buffer . data ( ) , elem_cnt , dt . c_str ( ) , * node - > data . seq ) ;
2016-06-18 21:40:29 +08:00
if ( fs - > dummy_eof ) {
/* end of file */
return fs - > buffer_start ;
} else {
/* end of line */
return end ;
}
}
2010-05-12 01:44:00 +08:00
static char *
icvYMLParseKey ( CvFileStorage * fs , char * ptr ,
CvFileNode * map_node , CvFileNode * * value_placeholder )
{
char c ;
char * endptr = ptr - 1 , * saveptr ;
CvStringHashNode * str_hash_node ;
if ( * ptr = = ' - ' )
CV_PARSE_ERROR ( " Key may not start with \' - \' " ) ;
do c = * + + endptr ;
while ( cv_isprint ( c ) & & c ! = ' : ' ) ;
if ( c ! = ' : ' )
CV_PARSE_ERROR ( " Missing \' : \' " ) ;
saveptr = endptr + 1 ;
do c = * - - endptr ;
while ( c = = ' ' ) ;
+ + endptr ;
if ( endptr = = ptr )
CV_PARSE_ERROR ( " An empty key " ) ;
str_hash_node = cvGetHashedKey ( fs , ptr , ( int ) ( endptr - ptr ) , 1 ) ;
* value_placeholder = cvGetFileNode ( fs , map_node , str_hash_node , 1 ) ;
ptr = saveptr ;
return ptr ;
}
static char *
icvYMLParseValue ( CvFileStorage * fs , char * ptr , CvFileNode * node ,
int parent_flags , int min_indent )
{
2017-05-17 22:36:48 +08:00
char buf [ CV_FS_MAX_LEN + 1024 ] = { 0 } ;
2010-05-12 01:44:00 +08:00
char * endptr = 0 ;
char c = ptr [ 0 ] , d = ptr [ 1 ] ;
int is_parent_flow = CV_NODE_IS_FLOW ( parent_flags ) ;
int value_type = CV_NODE_NONE ;
int len ;
2016-06-18 21:40:29 +08:00
bool is_binary_string = false ;
2010-05-12 01:44:00 +08:00
memset ( node , 0 , sizeof ( * node ) ) ;
if ( c = = ' ! ' ) // handle explicit type specification
{
if ( d = = ' ! ' | | d = = ' ^ ' )
{
ptr + + ;
value_type | = CV_NODE_USER ;
}
2017-01-17 21:40:38 +08:00
if ( d = = ' < ' ) //support of full type heading from YAML 1.2
{
const char * yamlTypeHeading = " <tag:yaml.org,2002: " ;
const size_t headingLenght = strlen ( yamlTypeHeading ) ;
char * typeEndPtr = + + ptr ;
do d = * + + typeEndPtr ;
while ( cv_isprint ( d ) & & d ! = ' ' & & d ! = ' > ' ) ;
if ( d = = ' > ' & & ( size_t ) ( typeEndPtr - ptr ) > headingLenght )
{
if ( memcmp ( ptr , yamlTypeHeading , headingLenght ) = = 0 )
{
value_type | = CV_NODE_USER ;
* typeEndPtr = ' ' ;
ptr + = headingLenght - 1 ;
}
}
}
2010-05-12 01:44:00 +08:00
endptr = ptr + + ;
do d = * + + endptr ;
while ( cv_isprint ( d ) & & d ! = ' ' ) ;
len = ( int ) ( endptr - ptr ) ;
if ( len = = 0 )
CV_PARSE_ERROR ( " Empty type name " ) ;
d = * endptr ;
* endptr = ' \0 ' ;
if ( len = = 3 & & ! CV_NODE_IS_USER ( value_type ) )
{
if ( memcmp ( ptr , " str " , 3 ) = = 0 )
value_type = CV_NODE_STRING ;
else if ( memcmp ( ptr , " int " , 3 ) = = 0 )
value_type = CV_NODE_INT ;
else if ( memcmp ( ptr , " seq " , 3 ) = = 0 )
value_type = CV_NODE_SEQ ;
else if ( memcmp ( ptr , " map " , 3 ) = = 0 )
value_type = CV_NODE_MAP ;
}
else if ( len = = 5 & & ! CV_NODE_IS_USER ( value_type ) )
{
if ( memcmp ( ptr , " float " , 5 ) = = 0 )
value_type = CV_NODE_REAL ;
}
2016-06-18 21:40:29 +08:00
else if ( len = = 6 & & CV_NODE_IS_USER ( value_type ) )
{
if ( memcmp ( ptr , " binary " , 6 ) = = 0 ) {
value_type = CV_NODE_SEQ ;
is_binary_string = true ;
/* for ignore '|' */
/**** operation with endptr ****/
* endptr = d ;
do {
d = * + + endptr ;
if ( d = = ' | ' )
break ;
} while ( d = = ' ' ) ;
d = * + + endptr ;
* endptr = ' \0 ' ;
}
}
2010-05-12 01:44:00 +08:00
else if ( CV_NODE_IS_USER ( value_type ) )
{
node - > info = cvFindType ( ptr ) ;
if ( ! node - > info )
node - > tag & = ~ CV_NODE_USER ;
}
* endptr = d ;
ptr = icvYMLSkipSpaces ( fs , endptr , min_indent , INT_MAX ) ;
c = * ptr ;
if ( ! CV_NODE_IS_USER ( value_type ) )
{
2016-06-18 21:40:29 +08:00
if ( value_type = = CV_NODE_STRING & & c ! = ' \' ' & & c ! = ' \" ' )
2010-05-12 01:44:00 +08:00
goto force_string ;
if ( value_type = = CV_NODE_INT )
goto force_int ;
if ( value_type = = CV_NODE_REAL )
goto force_real ;
}
}
2016-06-18 21:40:29 +08:00
if ( is_binary_string )
{
/* for base64 string */
2016-06-18 23:28:12 +08:00
int indent = static_cast < int > ( ptr - fs - > buffer_start ) ;
2016-06-18 21:40:29 +08:00
ptr = icvYMLParseBase64 ( fs , ptr , indent , node ) ;
}
else if ( cv_isdigit ( c ) | |
2011-05-24 21:34:25 +08:00
( ( c = = ' - ' | | c = = ' + ' ) & & ( cv_isdigit ( d ) | | d = = ' . ' ) ) | |
( c = = ' . ' & & cv_isalnum ( d ) ) ) // a number
2010-05-12 01:44:00 +08:00
{
double fval ;
int ival ;
endptr = ptr + ( c = = ' - ' | | c = = ' + ' ) ;
2011-05-24 21:34:25 +08:00
while ( cv_isdigit ( * endptr ) )
2010-05-12 01:44:00 +08:00
endptr + + ;
if ( * endptr = = ' . ' | | * endptr = = ' e ' )
{
force_real :
fval = icv_strtod ( fs , ptr , & endptr ) ;
2011-05-24 21:34:25 +08:00
/*if( endptr == ptr || cv_isalpha(*endptr) )
2010-05-12 01:44:00 +08:00
icvProcessSpecialDouble ( fs , endptr , & fval , & endptr ) ) ; */
node - > tag = CV_NODE_REAL ;
node - > data . f = fval ;
}
else
{
force_int :
ival = ( int ) strtol ( ptr , & endptr , 0 ) ;
node - > tag = CV_NODE_INT ;
node - > data . i = ival ;
}
if ( ! endptr | | endptr = = ptr )
CV_PARSE_ERROR ( " Invalid numeric value (inconsistent explicit type specification?) " ) ;
ptr = endptr ;
}
else if ( c = = ' \' ' | | c = = ' \" ' ) // an explicit string
{
node - > tag = CV_NODE_STRING ;
if ( c = = ' \' ' )
for ( len = 0 ; len < CV_FS_MAX_LEN ; )
{
c = * + + ptr ;
2011-05-24 21:34:25 +08:00
if ( cv_isalnum ( c ) | | ( c ! = ' \' ' & & cv_isprint ( c ) ) )
2010-05-12 01:44:00 +08:00
buf [ len + + ] = c ;
else if ( c = = ' \' ' )
{
c = * + + ptr ;
if ( c ! = ' \' ' )
break ;
buf [ len + + ] = c ;
}
else
CV_PARSE_ERROR ( " Invalid character " ) ;
}
else
for ( len = 0 ; len < CV_FS_MAX_LEN ; )
{
c = * + + ptr ;
2011-05-24 21:34:25 +08:00
if ( cv_isalnum ( c ) | | ( c ! = ' \\ ' & & c ! = ' \" ' & & cv_isprint ( c ) ) )
2010-05-12 01:44:00 +08:00
buf [ len + + ] = c ;
else if ( c = = ' \" ' )
{
+ + ptr ;
break ;
}
else if ( c = = ' \\ ' )
{
d = * + + ptr ;
if ( d = = ' \' ' )
buf [ len + + ] = d ;
else if ( d = = ' \" ' | | d = = ' \\ ' | | d = = ' \' ' )
buf [ len + + ] = d ;
else if ( d = = ' n ' )
buf [ len + + ] = ' \n ' ;
else if ( d = = ' r ' )
buf [ len + + ] = ' \r ' ;
else if ( d = = ' t ' )
buf [ len + + ] = ' \t ' ;
2011-05-24 21:34:25 +08:00
else if ( d = = ' x ' | | ( cv_isdigit ( d ) & & d < ' 8 ' ) )
2010-05-12 01:44:00 +08:00
{
int val , is_hex = d = = ' x ' ;
c = ptr [ 3 ] ;
ptr [ 3 ] = ' \0 ' ;
2014-10-17 20:32:53 +08:00
val = ( int ) strtol ( ptr + is_hex , & endptr , is_hex ? 8 : 16 ) ;
2010-05-12 01:44:00 +08:00
ptr [ 3 ] = c ;
if ( endptr = = ptr + is_hex )
buf [ len + + ] = ' x ' ;
else
{
buf [ len + + ] = ( char ) val ;
ptr = endptr ;
}
}
}
else
CV_PARSE_ERROR ( " Invalid character " ) ;
}
if ( len > = CV_FS_MAX_LEN )
CV_PARSE_ERROR ( " Too long string literal " ) ;
node - > data . str = cvMemStorageAllocString ( fs - > memstorage , buf , len ) ;
}
else if ( c = = ' [ ' | | c = = ' { ' ) // collection as a flow
{
int new_min_indent = min_indent + ! is_parent_flow ;
int struct_flags = CV_NODE_FLOW + ( c = = ' { ' ? CV_NODE_MAP : CV_NODE_SEQ ) ;
2017-05-17 22:36:48 +08:00
bool is_simple = true ;
2010-05-12 01:44:00 +08:00
icvFSCreateCollection ( fs , CV_NODE_TYPE ( struct_flags ) +
( node - > info ? CV_NODE_USER : 0 ) , node ) ;
d = c = = ' [ ' ? ' ] ' : ' } ' ;
for ( + + ptr ; ; )
{
CvFileNode * elem = 0 ;
ptr = icvYMLSkipSpaces ( fs , ptr , new_min_indent , INT_MAX ) ;
if ( * ptr = = ' } ' | | * ptr = = ' ] ' )
{
if ( * ptr ! = d )
CV_PARSE_ERROR ( " The wrong closing bracket " ) ;
ptr + + ;
break ;
}
if ( node - > data . seq - > total ! = 0 )
{
if ( * ptr ! = ' , ' )
CV_PARSE_ERROR ( " Missing , between the elements " ) ;
ptr = icvYMLSkipSpaces ( fs , ptr + 1 , new_min_indent , INT_MAX ) ;
}
if ( CV_NODE_IS_MAP ( struct_flags ) )
{
ptr = icvYMLParseKey ( fs , ptr , node , & elem ) ;
ptr = icvYMLSkipSpaces ( fs , ptr , new_min_indent , INT_MAX ) ;
}
else
{
if ( * ptr = = ' ] ' )
break ;
elem = ( CvFileNode * ) cvSeqPush ( node - > data . seq , 0 ) ;
}
2017-05-17 22:36:48 +08:00
CV_Assert ( elem ) ;
2010-05-12 01:44:00 +08:00
ptr = icvYMLParseValue ( fs , ptr , elem , struct_flags , new_min_indent ) ;
if ( CV_NODE_IS_MAP ( struct_flags ) )
elem - > tag | = CV_NODE_NAMED ;
2017-05-17 22:36:48 +08:00
is_simple = is_simple & & ! CV_NODE_IS_COLLECTION ( elem - > tag ) ;
2010-05-12 01:44:00 +08:00
}
node - > data . seq - > flags | = is_simple ? CV_NODE_SEQ_SIMPLE : 0 ;
}
else
{
2017-05-17 22:36:48 +08:00
int indent , struct_flags ;
bool is_simple ;
2010-05-12 01:44:00 +08:00
if ( is_parent_flow | | c ! = ' - ' )
{
// implicit (one-line) string or nested block-style collection
if ( ! is_parent_flow )
{
if ( c = = ' ? ' )
CV_PARSE_ERROR ( " Complex keys are not supported " ) ;
if ( c = = ' | ' | | c = = ' > ' )
CV_PARSE_ERROR ( " Multi-line text literals are not supported " ) ;
}
force_string :
endptr = ptr - 1 ;
do c = * + + endptr ;
while ( cv_isprint ( c ) & &
( ! is_parent_flow | | ( c ! = ' , ' & & c ! = ' } ' & & c ! = ' ] ' ) ) & &
( is_parent_flow | | c ! = ' : ' | | value_type = = CV_NODE_STRING ) ) ;
if ( endptr = = ptr )
CV_PARSE_ERROR ( " Invalid character " ) ;
if ( is_parent_flow | | c ! = ' : ' )
{
char * str_end = endptr ;
node - > tag = CV_NODE_STRING ;
// strip spaces in the end of string
do c = * - - str_end ;
while ( str_end > ptr & & c = = ' ' ) ;
str_end + + ;
node - > data . str = cvMemStorageAllocString ( fs - > memstorage , ptr , ( int ) ( str_end - ptr ) ) ;
ptr = endptr ;
return ptr ;
}
struct_flags = CV_NODE_MAP ;
}
else
struct_flags = CV_NODE_SEQ ;
icvFSCreateCollection ( fs , struct_flags +
( node - > info ? CV_NODE_USER : 0 ) , node ) ;
indent = ( int ) ( ptr - fs - > buffer_start ) ;
2017-05-17 22:36:48 +08:00
is_simple = true ;
2010-05-12 01:44:00 +08:00
for ( ; ; )
{
CvFileNode * elem = 0 ;
if ( CV_NODE_IS_MAP ( struct_flags ) )
{
ptr = icvYMLParseKey ( fs , ptr , node , & elem ) ;
}
else
{
c = * ptr + + ;
if ( c ! = ' - ' )
CV_PARSE_ERROR ( " Block sequence elements must be preceded with \' - \' " ) ;
elem = ( CvFileNode * ) cvSeqPush ( node - > data . seq , 0 ) ;
}
2017-05-17 22:36:48 +08:00
CV_Assert ( elem ) ;
2010-05-12 01:44:00 +08:00
ptr = icvYMLSkipSpaces ( fs , ptr , indent + 1 , INT_MAX ) ;
ptr = icvYMLParseValue ( fs , ptr , elem , struct_flags , indent + 1 ) ;
if ( CV_NODE_IS_MAP ( struct_flags ) )
elem - > tag | = CV_NODE_NAMED ;
2017-05-17 22:36:48 +08:00
is_simple = is_simple & & ! CV_NODE_IS_COLLECTION ( elem - > tag ) ;
2010-05-12 01:44:00 +08:00
ptr = icvYMLSkipSpaces ( fs , ptr , 0 , INT_MAX ) ;
if ( ptr - fs - > buffer_start ! = indent )
{
if ( ptr - fs - > buffer_start < indent )
break ;
else
CV_PARSE_ERROR ( " Incorrect indentation " ) ;
}
if ( memcmp ( ptr , " ... " , 3 ) = = 0 )
break ;
}
node - > data . seq - > flags | = is_simple ? CV_NODE_SEQ_SIMPLE : 0 ;
}
return ptr ;
}
static void
icvYMLParse ( CvFileStorage * fs )
{
char * ptr = fs - > buffer_start ;
int is_first = 1 ;
for ( ; ; )
{
// 0. skip leading comments and directives and ...
// 1. reach the first item
for ( ; ; )
{
ptr = icvYMLSkipSpaces ( fs , ptr , 0 , INT_MAX ) ;
if ( ! ptr )
return ;
if ( * ptr = = ' % ' )
{
2016-06-18 21:40:29 +08:00
if ( memcmp ( ptr , " %YAML " , 5 ) = = 0 & &
memcmp ( ptr , " %YAML:1. " , 8 ) ! = 0 & &
memcmp ( ptr , " %YAML 1. " , 8 ) ! = 0 )
2010-05-12 01:44:00 +08:00
CV_PARSE_ERROR ( " Unsupported YAML version (it must be 1.x) " ) ;
* ptr = ' \0 ' ;
}
else if ( * ptr = = ' - ' )
{
if ( memcmp ( ptr , " --- " , 3 ) = = 0 )
{
ptr + = 3 ;
break ;
}
else if ( is_first )
break ;
}
2011-05-24 21:34:25 +08:00
else if ( cv_isalnum ( * ptr ) | | * ptr = = ' _ ' )
2010-05-12 01:44:00 +08:00
{
if ( ! is_first )
CV_PARSE_ERROR ( " The YAML streams must start with '---', except the first one " ) ;
break ;
}
2011-06-09 00:13:11 +08:00
else if ( fs - > dummy_eof )
break ;
2010-05-12 01:44:00 +08:00
else
CV_PARSE_ERROR ( " Invalid or unsupported syntax " ) ;
}
ptr = icvYMLSkipSpaces ( fs , ptr , 0 , INT_MAX ) ;
if ( memcmp ( ptr , " ... " , 3 ) ! = 0 )
{
// 2. parse the collection
CvFileNode * root_node = ( CvFileNode * ) cvSeqPush ( fs - > roots , 0 ) ;
ptr = icvYMLParseValue ( fs , ptr , root_node , CV_NODE_NONE , 0 ) ;
if ( ! CV_NODE_IS_COLLECTION ( root_node - > tag ) )
CV_PARSE_ERROR ( " Only collections as YAML streams are supported by this parser " ) ;
// 3. parse until the end of file or next collection
ptr = icvYMLSkipSpaces ( fs , ptr , 0 , INT_MAX ) ;
if ( ! ptr )
return ;
}
if ( fs - > dummy_eof )
break ;
ptr + = 3 ;
is_first = 0 ;
}
}
/****************************************************************************************\
* YAML Emitter *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void
icvYMLWrite ( CvFileStorage * fs , const char * key , const char * data )
{
2016-07-19 15:54:38 +08:00
check_if_write_struct_is_delayed ( fs ) ;
2016-07-19 21:18:41 +08:00
if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain )
2016-07-19 15:54:38 +08:00
{
2016-07-19 21:18:41 +08:00
switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
2016-07-19 15:54:38 +08:00
}
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else if ( fs - > state_of_writing_base64 = = base64 : : fs : : InUse )
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{
CV_Error ( CV_StsError , " At present, output Base64 data only. " ) ;
}
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int i , keylen = 0 ;
int datalen = 0 ;
int struct_flags ;
char * ptr ;
struct_flags = fs - > struct_flags ;
if ( key & & key [ 0 ] = = ' \0 ' )
key = 0 ;
if ( CV_NODE_IS_COLLECTION ( struct_flags ) )
{
if ( ( CV_NODE_IS_MAP ( struct_flags ) ^ ( key ! = 0 ) ) )
CV_Error ( CV_StsBadArg , " An attempt to add element without a key to a map, "
" or add element with key to sequence " ) ;
}
else
{
fs - > is_first = 0 ;
struct_flags = CV_NODE_EMPTY | ( key ? CV_NODE_MAP : CV_NODE_SEQ ) ;
}
if ( key )
{
keylen = ( int ) strlen ( key ) ;
if ( keylen = = 0 )
CV_Error ( CV_StsBadArg , " The key is an empty " ) ;
if ( keylen > CV_FS_MAX_LEN )
CV_Error ( CV_StsBadArg , " The key is too long " ) ;
}
if ( data )
datalen = ( int ) strlen ( data ) ;
if ( CV_NODE_IS_FLOW ( struct_flags ) )
{
int new_offset ;
ptr = fs - > buffer ;
if ( ! CV_NODE_IS_EMPTY ( struct_flags ) )
* ptr + + = ' , ' ;
new_offset = ( int ) ( ptr - fs - > buffer_start ) + keylen + datalen ;
if ( new_offset > fs - > wrap_margin & & new_offset - fs - > struct_indent > 10 )
{
fs - > buffer = ptr ;
ptr = icvFSFlush ( fs ) ;
}
else
* ptr + + = ' ' ;
}
else
{
ptr = icvFSFlush ( fs ) ;
if ( ! CV_NODE_IS_MAP ( struct_flags ) )
{
* ptr + + = ' - ' ;
if ( data )
* ptr + + = ' ' ;
}
}
if ( key )
{
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if ( ! cv_isalpha ( key [ 0 ] ) & & key [ 0 ] ! = ' _ ' )
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CV_Error ( CV_StsBadArg , " Key must start with a letter or _ " ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , keylen ) ;
for ( i = 0 ; i < keylen ; i + + )
{
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char c = key [ i ] ;
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ptr [ i ] = c ;
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if ( ! cv_isalnum ( c ) & & c ! = ' - ' & & c ! = ' _ ' & & c ! = ' ' )
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CV_Error ( CV_StsBadArg , " Key names may only contain alphanumeric characters [a-zA-Z0-9], '-', '_' and ' ' " ) ;
}
ptr + = keylen ;
* ptr + + = ' : ' ;
if ( ! CV_NODE_IS_FLOW ( struct_flags ) & & data )
* ptr + + = ' ' ;
}
if ( data )
{
ptr = icvFSResizeWriteBuffer ( fs , ptr , datalen ) ;
memcpy ( ptr , data , datalen ) ;
ptr + = datalen ;
}
fs - > buffer = ptr ;
fs - > struct_flags = struct_flags & ~ CV_NODE_EMPTY ;
}
static void
icvYMLStartWriteStruct ( CvFileStorage * fs , const char * key , int struct_flags ,
const char * type_name CV_DEFAULT ( 0 ) )
{
int parent_flags ;
char buf [ CV_FS_MAX_LEN + 1024 ] ;
const char * data = 0 ;
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if ( type_name & & * type_name = = ' \0 ' )
type_name = 0 ;
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struct_flags = ( struct_flags & ( CV_NODE_TYPE_MASK | CV_NODE_FLOW ) ) | CV_NODE_EMPTY ;
if ( ! CV_NODE_IS_COLLECTION ( struct_flags ) )
CV_Error ( CV_StsBadArg ,
" Some collection type - CV_NODE_SEQ or CV_NODE_MAP, must be specified " ) ;
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if ( type_name & & memcmp ( type_name , " binary " , 6 ) = = 0 )
{
/* reset struct flag. in order not to print ']' */
struct_flags = CV_NODE_SEQ ;
sprintf ( buf , " !!binary | " ) ;
data = buf ;
}
else if ( CV_NODE_IS_FLOW ( struct_flags ) )
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{
char c = CV_NODE_IS_MAP ( struct_flags ) ? ' { ' : ' [ ' ;
struct_flags | = CV_NODE_FLOW ;
if ( type_name )
sprintf ( buf , " !!%s %c " , type_name , c ) ;
else
{
buf [ 0 ] = c ;
buf [ 1 ] = ' \0 ' ;
}
data = buf ;
}
else if ( type_name )
{
sprintf ( buf , " !!%s " , type_name ) ;
data = buf ;
}
icvYMLWrite ( fs , key , data ) ;
parent_flags = fs - > struct_flags ;
cvSeqPush ( fs - > write_stack , & parent_flags ) ;
fs - > struct_flags = struct_flags ;
if ( ! CV_NODE_IS_FLOW ( parent_flags ) )
fs - > struct_indent + = CV_YML_INDENT + CV_NODE_IS_FLOW ( struct_flags ) ;
}
static void
icvYMLEndWriteStruct ( CvFileStorage * fs )
{
int parent_flags = 0 , struct_flags ;
char * ptr ;
struct_flags = fs - > struct_flags ;
if ( fs - > write_stack - > total = = 0 )
CV_Error ( CV_StsError , " EndWriteStruct w/o matching StartWriteStruct " ) ;
cvSeqPop ( fs - > write_stack , & parent_flags ) ;
if ( CV_NODE_IS_FLOW ( struct_flags ) )
{
ptr = fs - > buffer ;
if ( ptr > fs - > buffer_start + fs - > struct_indent & & ! CV_NODE_IS_EMPTY ( struct_flags ) )
* ptr + + = ' ' ;
* ptr + + = CV_NODE_IS_MAP ( struct_flags ) ? ' } ' : ' ] ' ;
fs - > buffer = ptr ;
}
else if ( CV_NODE_IS_EMPTY ( struct_flags ) )
{
ptr = icvFSFlush ( fs ) ;
memcpy ( ptr , CV_NODE_IS_MAP ( struct_flags ) ? " {} " : " [] " , 2 ) ;
fs - > buffer = ptr + 2 ;
}
if ( ! CV_NODE_IS_FLOW ( parent_flags ) )
fs - > struct_indent - = CV_YML_INDENT + CV_NODE_IS_FLOW ( struct_flags ) ;
assert ( fs - > struct_indent > = 0 ) ;
fs - > struct_flags = parent_flags ;
}
static void
icvYMLStartNextStream ( CvFileStorage * fs )
{
if ( ! fs - > is_first )
{
while ( fs - > write_stack - > total > 0 )
icvYMLEndWriteStruct ( fs ) ;
fs - > struct_indent = 0 ;
icvFSFlush ( fs ) ;
icvPuts ( fs , " ... \n " ) ;
icvPuts ( fs , " --- \n " ) ;
fs - > buffer = fs - > buffer_start ;
}
}
static void
icvYMLWriteInt ( CvFileStorage * fs , const char * key , int value )
{
char buf [ 128 ] ;
icvYMLWrite ( fs , key , icv_itoa ( value , buf , 10 ) ) ;
}
static void
icvYMLWriteReal ( CvFileStorage * fs , const char * key , double value )
{
char buf [ 128 ] ;
icvYMLWrite ( fs , key , icvDoubleToString ( buf , value ) ) ;
}
static void
icvYMLWriteString ( CvFileStorage * fs , const char * key ,
const char * str , int quote CV_DEFAULT ( 0 ) )
{
char buf [ CV_FS_MAX_LEN * 4 + 16 ] ;
char * data = ( char * ) str ;
int i , len ;
if ( ! str )
CV_Error ( CV_StsNullPtr , " Null string pointer " ) ;
len = ( int ) strlen ( str ) ;
if ( len > CV_FS_MAX_LEN )
CV_Error ( CV_StsBadArg , " The written string is too long " ) ;
if ( quote | | len = = 0 | | str [ 0 ] ! = str [ len - 1 ] | | ( str [ 0 ] ! = ' \" ' & & str [ 0 ] ! = ' \' ' ) )
{
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int need_quote = quote | | len = = 0 | | str [ 0 ] = = ' ' ;
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data = buf ;
* data + + = ' \" ' ;
for ( i = 0 ; i < len ; i + + )
{
char c = str [ i ] ;
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if ( ! need_quote & & ! cv_isalnum ( c ) & & c ! = ' _ ' & & c ! = ' ' & & c ! = ' - ' & &
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c ! = ' ( ' & & c ! = ' ) ' & & c ! = ' / ' & & c ! = ' + ' & & c ! = ' ; ' )
need_quote = 1 ;
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if ( ! cv_isalnum ( c ) & & ( ! cv_isprint ( c ) | | c = = ' \\ ' | | c = = ' \' ' | | c = = ' \" ' ) )
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{
* data + + = ' \\ ' ;
if ( cv_isprint ( c ) )
* data + + = c ;
else if ( c = = ' \n ' )
* data + + = ' n ' ;
else if ( c = = ' \r ' )
* data + + = ' r ' ;
else if ( c = = ' \t ' )
* data + + = ' t ' ;
else
{
sprintf ( data , " x%02x " , c ) ;
data + = 3 ;
}
}
else
* data + + = c ;
}
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if ( ! need_quote & & ( cv_isdigit ( str [ 0 ] ) | |
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str [ 0 ] = = ' + ' | | str [ 0 ] = = ' - ' | | str [ 0 ] = = ' . ' ) )
need_quote = 1 ;
if ( need_quote )
* data + + = ' \" ' ;
* data + + = ' \0 ' ;
data = buf + ! need_quote ;
}
icvYMLWrite ( fs , key , data ) ;
}
static void
icvYMLWriteComment ( CvFileStorage * fs , const char * comment , int eol_comment )
{
int len ; //, indent;
int multiline ;
const char * eol ;
char * ptr ;
if ( ! comment )
CV_Error ( CV_StsNullPtr , " Null comment " ) ;
len = ( int ) strlen ( comment ) ;
eol = strchr ( comment , ' \n ' ) ;
multiline = eol ! = 0 ;
ptr = fs - > buffer ;
if ( ! eol_comment | | multiline | |
fs - > buffer_end - ptr < len | | ptr = = fs - > buffer_start )
ptr = icvFSFlush ( fs ) ;
else
* ptr + + = ' ' ;
while ( comment )
{
* ptr + + = ' # ' ;
* ptr + + = ' ' ;
if ( eol )
{
ptr = icvFSResizeWriteBuffer ( fs , ptr , ( int ) ( eol - comment ) + 1 ) ;
memcpy ( ptr , comment , eol - comment + 1 ) ;
fs - > buffer = ptr + ( eol - comment ) ;
comment = eol + 1 ;
eol = strchr ( comment , ' \n ' ) ;
}
else
{
len = ( int ) strlen ( comment ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , len ) ;
memcpy ( ptr , comment , len ) ;
fs - > buffer = ptr + len ;
comment = 0 ;
}
ptr = icvFSFlush ( fs ) ;
}
}
/****************************************************************************************\
* XML Parser *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# define CV_XML_INSIDE_COMMENT 1
# define CV_XML_INSIDE_TAG 2
# define CV_XML_INSIDE_DIRECTIVE 3
static char *
icvXMLSkipSpaces ( CvFileStorage * fs , char * ptr , int mode )
{
int level = 0 ;
for ( ; ; )
{
char c ;
ptr - - ;
if ( mode = = CV_XML_INSIDE_COMMENT )
{
do c = * + + ptr ;
while ( cv_isprint_or_tab ( c ) & & ( c ! = ' - ' | | ptr [ 1 ] ! = ' - ' | | ptr [ 2 ] ! = ' > ' ) ) ;
if ( c = = ' - ' )
{
assert ( ptr [ 1 ] = = ' - ' & & ptr [ 2 ] = = ' > ' ) ;
mode = 0 ;
ptr + = 3 ;
}
}
else if ( mode = = CV_XML_INSIDE_DIRECTIVE )
{
// !!!NOTE!!! This is not quite correct, but should work in most cases
do
{
c = * + + ptr ;
level + = c = = ' < ' ;
level - = c = = ' > ' ;
if ( level < 0 )
return ptr ;
} while ( cv_isprint_or_tab ( c ) ) ;
}
else
{
do c = * + + ptr ;
while ( c = = ' ' | | c = = ' \t ' ) ;
if ( c = = ' < ' & & ptr [ 1 ] = = ' ! ' & & ptr [ 2 ] = = ' - ' & & ptr [ 3 ] = = ' - ' )
{
if ( mode ! = 0 )
CV_PARSE_ERROR ( " Comments are not allowed here " ) ;
mode = CV_XML_INSIDE_COMMENT ;
ptr + = 4 ;
}
else if ( cv_isprint ( c ) )
break ;
}
if ( ! cv_isprint ( * ptr ) )
{
int max_size = ( int ) ( fs - > buffer_end - fs - > buffer_start ) ;
if ( * ptr ! = ' \0 ' & & * ptr ! = ' \n ' & & * ptr ! = ' \r ' )
CV_PARSE_ERROR ( " Invalid character in the stream " ) ;
ptr = icvGets ( fs , fs - > buffer_start , max_size ) ;
if ( ! ptr )
{
ptr = fs - > buffer_start ;
* ptr = ' \0 ' ;
fs - > dummy_eof = 1 ;
break ;
}
else
{
int l = ( int ) strlen ( ptr ) ;
if ( ptr [ l - 1 ] ! = ' \n ' & & ptr [ l - 1 ] ! = ' \r ' & & ! icvEof ( fs ) )
CV_PARSE_ERROR ( " Too long string or a last string w/o newline " ) ;
}
fs - > lineno + + ;
}
}
return ptr ;
}
2016-06-18 21:40:29 +08:00
static void icvXMLGetMultilineStringContent ( CvFileStorage * fs ,
char * ptr , char * & beg , char * & end )
{
ptr = icvXMLSkipSpaces ( fs , ptr , CV_XML_INSIDE_TAG ) ;
beg = ptr ;
end = ptr ;
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if ( fs - > dummy_eof )
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return ; /* end of file */
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if ( * beg = = ' < ' )
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return ; /* end of string */
/* find end */
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while ( cv_isprint ( * ptr ) ) /* no check for base64 string */
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+ + ptr ;
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if ( * ptr = = ' \0 ' )
CV_PARSE_ERROR ( " Unexpected end of line " ) ;
2016-06-18 21:40:29 +08:00
end = ptr ;
}
static char * icvXMLParseBase64 ( CvFileStorage * fs , char * ptr , CvFileNode * node )
{
char * beg = 0 ;
char * end = 0 ;
icvXMLGetMultilineStringContent ( fs , ptr , beg , end ) ;
if ( beg > = end )
return end ; // CV_PARSE_ERROR("Empty Binary Data");
/* calc (decoded) total_byte_size from header */
std : : string dt ;
{
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if ( end - beg < static_cast < int > ( base64 : : ENCODED_HEADER_SIZE ) )
2016-06-18 21:40:29 +08:00
CV_PARSE_ERROR ( " Unrecognized Base64 header " ) ;
std : : vector < char > header ( base64 : : HEADER_SIZE + 1 , ' ' ) ;
base64 : : base64_decode ( beg , header . data ( ) , 0U , base64 : : ENCODED_HEADER_SIZE ) ;
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if ( ! base64 : : read_base64_header ( header , dt ) | | dt . empty ( ) )
2016-08-11 03:31:35 +08:00
CV_PARSE_ERROR ( " Invalid `dt` in Base64 header " ) ;
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beg + = base64 : : ENCODED_HEADER_SIZE ;
}
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/* get all Base64 data */
2016-07-30 00:35:41 +08:00
std : : string base64_buffer ; // not an efficient way.
2016-08-05 15:17:21 +08:00
base64_buffer . reserve ( PARSER_BASE64_BUFFER_SIZE ) ;
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while ( beg < end )
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{
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base64_buffer . append ( beg , end ) ;
beg = end ;
icvXMLGetMultilineStringContent ( fs , beg , beg , end ) ;
}
2017-05-17 22:36:48 +08:00
if ( base64_buffer . empty ( ) | |
! base64 : : base64_valid ( base64_buffer . data ( ) , 0U , base64_buffer . size ( ) ) )
2016-07-19 15:54:38 +08:00
CV_PARSE_ERROR ( " Invalid Base64 data. " ) ;
2016-06-18 21:40:29 +08:00
2016-07-19 15:54:38 +08:00
/* alloc buffer for all decoded data(include header) */
std : : vector < uchar > binary_buffer ( base64 : : base64_decode_buffer_size ( base64_buffer . size ( ) ) ) ;
2016-07-19 19:56:57 +08:00
int total_byte_size = static_cast < int > (
base64 : : base64_decode_buffer_size ( base64_buffer . size ( ) , base64_buffer . data ( ) , false )
) ;
2016-07-19 15:54:38 +08:00
{
base64 : : Base64ContextParser parser ( binary_buffer . data ( ) , binary_buffer . size ( ) ) ;
const uchar * buffer_beg = reinterpret_cast < const uchar * > ( base64_buffer . data ( ) ) ;
const uchar * buffer_end = buffer_beg + base64_buffer . size ( ) ;
parser . read ( buffer_beg , buffer_end ) ;
parser . flush ( ) ;
2016-06-18 21:40:29 +08:00
}
/* save as CvSeq */
int elem_size = : : icvCalcStructSize ( dt . c_str ( ) , 0 ) ;
if ( total_byte_size % elem_size ! = 0 )
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CV_PARSE_ERROR ( " data size not matches elememt size " ) ;
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int elem_cnt = total_byte_size / elem_size ;
node - > tag = CV_NODE_NONE ;
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int struct_flags = CV_NODE_SEQ ;
/* after icvFSCreateCollection, node->tag == struct_flags */
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icvFSCreateCollection ( fs , struct_flags , node ) ;
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base64 : : make_seq ( binary_buffer . data ( ) , elem_cnt , dt . c_str ( ) , * node - > data . seq ) ;
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if ( fs - > dummy_eof ) {
/* end of file */
return fs - > buffer_start ;
} else {
/* end of line */
return end ;
}
}
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static char *
icvXMLParseTag ( CvFileStorage * fs , char * ptr , CvStringHashNode * * _tag ,
CvAttrList * * _list , int * _tag_type ) ;
static char *
icvXMLParseValue ( CvFileStorage * fs , char * ptr , CvFileNode * node ,
int value_type CV_DEFAULT ( CV_NODE_NONE ) )
{
CvFileNode * elem = node ;
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bool have_space = true , is_simple = true ;
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int is_user_type = CV_NODE_IS_USER ( value_type ) ;
memset ( node , 0 , sizeof ( * node ) ) ;
value_type = CV_NODE_TYPE ( value_type ) ;
for ( ; ; )
{
char c = * ptr , d ;
char * endptr ;
2011-05-24 21:34:25 +08:00
if ( cv_isspace ( c ) | | c = = ' \0 ' | | ( c = = ' < ' & & ptr [ 1 ] = = ' ! ' & & ptr [ 2 ] = = ' - ' ) )
2010-05-12 01:44:00 +08:00
{
ptr = icvXMLSkipSpaces ( fs , ptr , 0 ) ;
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have_space = true ;
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c = * ptr ;
}
d = ptr [ 1 ] ;
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if ( c = = ' < ' | | c = = ' \0 ' )
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{
CvStringHashNode * key = 0 , * key2 = 0 ;
CvAttrList * list = 0 ;
CvTypeInfo * info = 0 ;
int tag_type = 0 ;
int is_noname = 0 ;
const char * type_name = 0 ;
int elem_type = CV_NODE_NONE ;
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if ( d = = ' / ' | | c = = ' \0 ' )
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break ;
ptr = icvXMLParseTag ( fs , ptr , & key , & list , & tag_type ) ;
if ( tag_type = = CV_XML_DIRECTIVE_TAG )
CV_PARSE_ERROR ( " Directive tags are not allowed here " ) ;
if ( tag_type = = CV_XML_EMPTY_TAG )
CV_PARSE_ERROR ( " Empty tags are not supported " ) ;
assert ( tag_type = = CV_XML_OPENING_TAG ) ;
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/* for base64 string */
bool is_binary_string = false ;
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type_name = list ? cvAttrValue ( list , " type_id " ) : 0 ;
if ( type_name )
{
if ( strcmp ( type_name , " str " ) = = 0 )
elem_type = CV_NODE_STRING ;
else if ( strcmp ( type_name , " map " ) = = 0 )
elem_type = CV_NODE_MAP ;
else if ( strcmp ( type_name , " seq " ) = = 0 )
elem_type = CV_NODE_SEQ ;
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else if ( strcmp ( type_name , " binary " ) = = 0 )
{
elem_type = CV_NODE_NONE ;
is_binary_string = true ;
}
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else
{
info = cvFindType ( type_name ) ;
if ( info )
elem_type = CV_NODE_USER ;
}
}
is_noname = key - > str . len = = 1 & & key - > str . ptr [ 0 ] = = ' _ ' ;
if ( ! CV_NODE_IS_COLLECTION ( node - > tag ) )
{
icvFSCreateCollection ( fs , is_noname ? CV_NODE_SEQ : CV_NODE_MAP , node ) ;
}
else if ( is_noname ^ CV_NODE_IS_SEQ ( node - > tag ) )
CV_PARSE_ERROR ( is_noname ? " Map element should have a name " :
" Sequence element should not have name (use <_></_>) " ) ;
if ( is_noname )
elem = ( CvFileNode * ) cvSeqPush ( node - > data . seq , 0 ) ;
else
elem = cvGetFileNode ( fs , node , key , 1 ) ;
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CV_Assert ( elem ) ;
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if ( ! is_binary_string )
ptr = icvXMLParseValue ( fs , ptr , elem , elem_type ) ;
else {
/* for base64 string */
ptr = icvXMLParseBase64 ( fs , ptr , elem ) ;
ptr = icvXMLSkipSpaces ( fs , ptr , 0 ) ;
}
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if ( ! is_noname )
elem - > tag | = CV_NODE_NAMED ;
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is_simple = is_simple & & ! CV_NODE_IS_COLLECTION ( elem - > tag ) ;
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elem - > info = info ;
ptr = icvXMLParseTag ( fs , ptr , & key2 , & list , & tag_type ) ;
if ( tag_type ! = CV_XML_CLOSING_TAG | | key2 ! = key )
CV_PARSE_ERROR ( " Mismatched closing tag " ) ;
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have_space = true ;
2010-05-12 01:44:00 +08:00
}
else
{
if ( ! have_space )
CV_PARSE_ERROR ( " There should be space between literals " ) ;
elem = node ;
if ( node - > tag ! = CV_NODE_NONE )
{
if ( ! CV_NODE_IS_COLLECTION ( node - > tag ) )
icvFSCreateCollection ( fs , CV_NODE_SEQ , node ) ;
elem = ( CvFileNode * ) cvSeqPush ( node - > data . seq , 0 ) ;
elem - > info = 0 ;
}
if ( value_type ! = CV_NODE_STRING & &
2011-05-24 21:34:25 +08:00
( cv_isdigit ( c ) | | ( ( c = = ' - ' | | c = = ' + ' ) & &
( cv_isdigit ( d ) | | d = = ' . ' ) ) | | ( c = = ' . ' & & cv_isalnum ( d ) ) ) ) // a number
2010-05-12 01:44:00 +08:00
{
double fval ;
int ival ;
endptr = ptr + ( c = = ' - ' | | c = = ' + ' ) ;
2011-05-24 21:34:25 +08:00
while ( cv_isdigit ( * endptr ) )
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endptr + + ;
if ( * endptr = = ' . ' | | * endptr = = ' e ' )
{
fval = icv_strtod ( fs , ptr , & endptr ) ;
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/*if( endptr == ptr || cv_isalpha(*endptr) )
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icvProcessSpecialDouble ( fs , ptr , & fval , & endptr ) ) ; */
elem - > tag = CV_NODE_REAL ;
elem - > data . f = fval ;
}
else
{
ival = ( int ) strtol ( ptr , & endptr , 0 ) ;
elem - > tag = CV_NODE_INT ;
elem - > data . i = ival ;
}
if ( endptr = = ptr )
CV_PARSE_ERROR ( " Invalid numeric value (inconsistent explicit type specification?) " ) ;
ptr = endptr ;
}
else
{
// string
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char buf [ CV_FS_MAX_LEN + 16 ] = { 0 } ;
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int i = 0 , len , is_quoted = 0 ;
elem - > tag = CV_NODE_STRING ;
if ( c = = ' \" ' )
is_quoted = 1 ;
else
- - ptr ;
for ( ; ; )
{
c = * + + ptr ;
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if ( ! cv_isalnum ( c ) )
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{
if ( c = = ' \" ' )
{
if ( ! is_quoted )
CV_PARSE_ERROR ( " Literal \" is not allowed within a string. Use " " ) ;
+ + ptr ;
break ;
}
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else if ( ! cv_isprint ( c ) | | c = = ' < ' | | ( ! is_quoted & & cv_isspace ( c ) ) )
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{
if ( is_quoted )
CV_PARSE_ERROR ( " Closing \" is expected " ) ;
break ;
}
else if ( c = = ' \' ' | | c = = ' > ' )
{
CV_PARSE_ERROR ( " Literal \' or > are not allowed. Use ' or > " ) ;
}
else if ( c = = ' & ' )
{
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if ( * + + ptr = = ' # ' )
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{
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int val , base = 10 ;
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ptr + + ;
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if ( * ptr = = ' x ' )
{
base = 16 ;
ptr + + ;
}
val = ( int ) strtol ( ptr , & endptr , base ) ;
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if ( ( unsigned ) val > ( unsigned ) 255 | |
! endptr | | * endptr ! = ' ; ' )
CV_PARSE_ERROR ( " Invalid numeric value in the string " ) ;
c = ( char ) val ;
}
else
{
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endptr = ptr ;
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do c = * + + endptr ;
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while ( cv_isalnum ( c ) ) ;
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if ( c ! = ' ; ' )
CV_PARSE_ERROR ( " Invalid character in the symbol entity name " ) ;
len = ( int ) ( endptr - ptr ) ;
if ( len = = 2 & & memcmp ( ptr , " lt " , len ) = = 0 )
c = ' < ' ;
else if ( len = = 2 & & memcmp ( ptr , " gt " , len ) = = 0 )
c = ' > ' ;
else if ( len = = 3 & & memcmp ( ptr , " amp " , len ) = = 0 )
c = ' & ' ;
else if ( len = = 4 & & memcmp ( ptr , " apos " , len ) = = 0 )
c = ' \' ' ;
else if ( len = = 4 & & memcmp ( ptr , " quot " , len ) = = 0 )
c = ' \" ' ;
else
{
memcpy ( buf + i , ptr - 1 , len + 2 ) ;
i + = len + 2 ;
}
}
ptr = endptr ;
}
}
buf [ i + + ] = c ;
if ( i > = CV_FS_MAX_LEN )
CV_PARSE_ERROR ( " Too long string literal " ) ;
}
elem - > data . str = cvMemStorageAllocString ( fs - > memstorage , buf , i ) ;
}
if ( ! CV_NODE_IS_COLLECTION ( value_type ) & & value_type ! = CV_NODE_NONE )
break ;
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have_space = false ;
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}
}
if ( ( CV_NODE_TYPE ( node - > tag ) = = CV_NODE_NONE | |
( CV_NODE_TYPE ( node - > tag ) ! = value_type & &
! CV_NODE_IS_COLLECTION ( node - > tag ) ) ) & &
CV_NODE_IS_COLLECTION ( value_type ) )
{
icvFSCreateCollection ( fs , CV_NODE_IS_MAP ( value_type ) ?
CV_NODE_MAP : CV_NODE_SEQ , node ) ;
}
if ( value_type ! = CV_NODE_NONE & &
value_type ! = CV_NODE_TYPE ( node - > tag ) )
CV_PARSE_ERROR ( " The actual type is different from the specified type " ) ;
if ( CV_NODE_IS_COLLECTION ( node - > tag ) & & is_simple )
node - > data . seq - > flags | = CV_NODE_SEQ_SIMPLE ;
node - > tag | = is_user_type ? CV_NODE_USER : 0 ;
return ptr ;
}
static char *
icvXMLParseTag ( CvFileStorage * fs , char * ptr , CvStringHashNode * * _tag ,
CvAttrList * * _list , int * _tag_type )
{
int tag_type = 0 ;
CvStringHashNode * tagname = 0 ;
CvAttrList * first = 0 , * last = 0 ;
int count = 0 , max_count = 4 ;
int attr_buf_size = ( max_count * 2 + 1 ) * sizeof ( char * ) + sizeof ( CvAttrList ) ;
char * endptr ;
char c ;
int have_space ;
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if ( * ptr = = ' \0 ' )
CV_PARSE_ERROR ( " Preliminary end of the stream " ) ;
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if ( * ptr ! = ' < ' )
CV_PARSE_ERROR ( " Tag should start with \' < \' " ) ;
ptr + + ;
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if ( cv_isalnum ( * ptr ) | | * ptr = = ' _ ' )
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tag_type = CV_XML_OPENING_TAG ;
else if ( * ptr = = ' / ' )
{
tag_type = CV_XML_CLOSING_TAG ;
ptr + + ;
}
else if ( * ptr = = ' ? ' )
{
tag_type = CV_XML_HEADER_TAG ;
ptr + + ;
}
else if ( * ptr = = ' ! ' )
{
tag_type = CV_XML_DIRECTIVE_TAG ;
assert ( ptr [ 1 ] ! = ' - ' | | ptr [ 2 ] ! = ' - ' ) ;
ptr + + ;
}
else
CV_PARSE_ERROR ( " Unknown tag type " ) ;
for ( ; ; )
{
CvStringHashNode * attrname ;
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if ( ! cv_isalpha ( * ptr ) & & * ptr ! = ' _ ' )
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CV_PARSE_ERROR ( " Name should start with a letter or underscore " ) ;
endptr = ptr - 1 ;
do c = * + + endptr ;
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while ( cv_isalnum ( c ) | | c = = ' _ ' | | c = = ' - ' ) ;
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attrname = cvGetHashedKey ( fs , ptr , ( int ) ( endptr - ptr ) , 1 ) ;
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CV_Assert ( attrname ) ;
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ptr = endptr ;
if ( ! tagname )
tagname = attrname ;
else
{
if ( tag_type = = CV_XML_CLOSING_TAG )
CV_PARSE_ERROR ( " Closing tag should not contain any attributes " ) ;
if ( ! last | | count > = max_count )
{
CvAttrList * chunk ;
chunk = ( CvAttrList * ) cvMemStorageAlloc ( fs - > memstorage , attr_buf_size ) ;
memset ( chunk , 0 , attr_buf_size ) ;
chunk - > attr = ( const char * * ) ( chunk + 1 ) ;
count = 0 ;
if ( ! last )
first = last = chunk ;
else
last = last - > next = chunk ;
}
last - > attr [ count * 2 ] = attrname - > str . ptr ;
}
if ( last )
{
CvFileNode stub ;
if ( * ptr ! = ' = ' )
{
ptr = icvXMLSkipSpaces ( fs , ptr , CV_XML_INSIDE_TAG ) ;
if ( * ptr ! = ' = ' )
CV_PARSE_ERROR ( " Attribute name should be followed by \' = \' " ) ;
}
c = * + + ptr ;
if ( c ! = ' \" ' & & c ! = ' \' ' )
{
ptr = icvXMLSkipSpaces ( fs , ptr , CV_XML_INSIDE_TAG ) ;
if ( * ptr ! = ' \" ' & & * ptr ! = ' \' ' )
CV_PARSE_ERROR ( " Attribute value should be put into single or double quotes " ) ;
}
ptr = icvXMLParseValue ( fs , ptr , & stub , CV_NODE_STRING ) ;
assert ( stub . tag = = CV_NODE_STRING ) ;
last - > attr [ count * 2 + 1 ] = stub . data . str . ptr ;
count + + ;
}
c = * ptr ;
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have_space = cv_isspace ( c ) | | c = = ' \0 ' ;
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if ( c ! = ' > ' )
{
ptr = icvXMLSkipSpaces ( fs , ptr , CV_XML_INSIDE_TAG ) ;
c = * ptr ;
}
if ( c = = ' > ' )
{
if ( tag_type = = CV_XML_HEADER_TAG )
CV_PARSE_ERROR ( " Invalid closing tag for <?xml ... " ) ;
ptr + + ;
break ;
}
else if ( c = = ' ? ' & & tag_type = = CV_XML_HEADER_TAG )
{
if ( ptr [ 1 ] ! = ' > ' )
CV_PARSE_ERROR ( " Invalid closing tag for <?xml ... " ) ;
ptr + = 2 ;
break ;
}
else if ( c = = ' / ' & & ptr [ 1 ] = = ' > ' & & tag_type = = CV_XML_OPENING_TAG )
{
tag_type = CV_XML_EMPTY_TAG ;
ptr + = 2 ;
break ;
}
if ( ! have_space )
CV_PARSE_ERROR ( " There should be space between attributes " ) ;
}
* _tag = tagname ;
* _tag_type = tag_type ;
* _list = first ;
return ptr ;
}
static void
icvXMLParse ( CvFileStorage * fs )
{
char * ptr = fs - > buffer_start ;
CvStringHashNode * key = 0 , * key2 = 0 ;
CvAttrList * list = 0 ;
int tag_type = 0 ;
// CV_XML_INSIDE_TAG is used to prohibit leading comments
ptr = icvXMLSkipSpaces ( fs , ptr , CV_XML_INSIDE_TAG ) ;
if ( memcmp ( ptr , " <?xml " , 5 ) ! = 0 )
CV_PARSE_ERROR ( " Valid XML should start with \' <?xml ...?> \' " ) ;
ptr = icvXMLParseTag ( fs , ptr , & key , & list , & tag_type ) ;
/*{
const char * version = cvAttrValue ( list , " version " ) ;
if ( version & & strncmp ( version , " 1. " , 2 ) ! = 0 )
CV_Error ( CV_StsParseError , " Unsupported version of XML " ) ;
} */
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// we support any 8-bit encoding, so we do not need to check the actual encoding.
// we do not support utf-16, but in the case of utf-16 we will not get here anyway.
/*{
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const char * encoding = cvAttrValue ( list , " encoding " ) ;
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if ( encoding & & strcmp ( encoding , " ASCII " ) ! = 0 & &
strcmp ( encoding , " UTF-8 " ) ! = 0 & &
strcmp ( encoding , " utf-8 " ) ! = 0 )
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CV_PARSE_ERROR ( " Unsupported encoding " ) ;
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} */
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while ( * ptr ! = ' \0 ' )
{
ptr = icvXMLSkipSpaces ( fs , ptr , 0 ) ;
if ( * ptr ! = ' \0 ' )
{
CvFileNode * root_node ;
ptr = icvXMLParseTag ( fs , ptr , & key , & list , & tag_type ) ;
if ( tag_type ! = CV_XML_OPENING_TAG | |
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! key | |
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strcmp ( key - > str . ptr , " opencv_storage " ) ! = 0 )
CV_PARSE_ERROR ( " <opencv_storage> tag is missing " ) ;
root_node = ( CvFileNode * ) cvSeqPush ( fs - > roots , 0 ) ;
ptr = icvXMLParseValue ( fs , ptr , root_node , CV_NODE_NONE ) ;
ptr = icvXMLParseTag ( fs , ptr , & key2 , & list , & tag_type ) ;
if ( tag_type ! = CV_XML_CLOSING_TAG | | key ! = key2 )
CV_PARSE_ERROR ( " </opencv_storage> tag is missing " ) ;
ptr = icvXMLSkipSpaces ( fs , ptr , 0 ) ;
}
}
assert ( fs - > dummy_eof ! = 0 ) ;
}
/****************************************************************************************\
* XML Emitter *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# define icvXMLFlush icvFSFlush
static void
icvXMLWriteTag ( CvFileStorage * fs , const char * key , int tag_type , CvAttrList list )
{
char * ptr = fs - > buffer ;
int i , len = 0 ;
int struct_flags = fs - > struct_flags ;
if ( key & & key [ 0 ] = = ' \0 ' )
key = 0 ;
if ( tag_type = = CV_XML_OPENING_TAG | | tag_type = = CV_XML_EMPTY_TAG )
{
if ( CV_NODE_IS_COLLECTION ( struct_flags ) )
{
if ( CV_NODE_IS_MAP ( struct_flags ) ^ ( key ! = 0 ) )
CV_Error ( CV_StsBadArg , " An attempt to add element without a key to a map, "
" or add element with key to sequence " ) ;
}
else
{
struct_flags = CV_NODE_EMPTY + ( key ? CV_NODE_MAP : CV_NODE_SEQ ) ;
fs - > is_first = 0 ;
}
if ( ! CV_NODE_IS_EMPTY ( struct_flags ) )
ptr = icvXMLFlush ( fs ) ;
}
if ( ! key )
key = " _ " ;
else if ( key [ 0 ] = = ' _ ' & & key [ 1 ] = = ' \0 ' )
CV_Error ( CV_StsBadArg , " A single _ is a reserved tag name " ) ;
len = ( int ) strlen ( key ) ;
* ptr + + = ' < ' ;
if ( tag_type = = CV_XML_CLOSING_TAG )
{
if ( list . attr )
CV_Error ( CV_StsBadArg , " Closing tag should not include any attributes " ) ;
* ptr + + = ' / ' ;
}
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if ( ! cv_isalpha ( key [ 0 ] ) & & key [ 0 ] ! = ' _ ' )
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CV_Error ( CV_StsBadArg , " Key should start with a letter or _ " ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , len ) ;
for ( i = 0 ; i < len ; i + + )
{
char c = key [ i ] ;
2011-05-24 21:34:25 +08:00
if ( ! cv_isalnum ( c ) & & c ! = ' _ ' & & c ! = ' - ' )
2010-05-12 01:44:00 +08:00
CV_Error ( CV_StsBadArg , " Key name may only contain alphanumeric characters [a-zA-Z0-9], '-' and '_' " ) ;
ptr [ i ] = c ;
}
ptr + = len ;
for ( ; ; )
{
const char * * attr = list . attr ;
for ( ; attr & & attr [ 0 ] ! = 0 ; attr + = 2 )
{
int len0 = ( int ) strlen ( attr [ 0 ] ) ;
int len1 = ( int ) strlen ( attr [ 1 ] ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , len0 + len1 + 4 ) ;
* ptr + + = ' ' ;
memcpy ( ptr , attr [ 0 ] , len0 ) ;
ptr + = len0 ;
* ptr + + = ' = ' ;
* ptr + + = ' \" ' ;
memcpy ( ptr , attr [ 1 ] , len1 ) ;
ptr + = len1 ;
* ptr + + = ' \" ' ;
}
if ( ! list . next )
break ;
list = * list . next ;
}
if ( tag_type = = CV_XML_EMPTY_TAG )
* ptr + + = ' / ' ;
* ptr + + = ' > ' ;
fs - > buffer = ptr ;
fs - > struct_flags = struct_flags & ~ CV_NODE_EMPTY ;
}
static void
icvXMLStartWriteStruct ( CvFileStorage * fs , const char * key , int struct_flags ,
const char * type_name CV_DEFAULT ( 0 ) )
{
CvXMLStackRecord parent ;
const char * attr [ 10 ] ;
int idx = 0 ;
struct_flags = ( struct_flags & ( CV_NODE_TYPE_MASK | CV_NODE_FLOW ) ) | CV_NODE_EMPTY ;
if ( ! CV_NODE_IS_COLLECTION ( struct_flags ) )
CV_Error ( CV_StsBadArg ,
" Some collection type: CV_NODE_SEQ or CV_NODE_MAP must be specified " ) ;
2016-08-05 16:15:03 +08:00
if ( type_name & & * type_name = = ' \0 ' )
type_name = 0 ;
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if ( type_name )
{
attr [ idx + + ] = " type_id " ;
attr [ idx + + ] = type_name ;
}
attr [ idx + + ] = 0 ;
icvXMLWriteTag ( fs , key , CV_XML_OPENING_TAG , cvAttrList ( attr , 0 ) ) ;
parent . struct_flags = fs - > struct_flags & ~ CV_NODE_EMPTY ;
parent . struct_indent = fs - > struct_indent ;
parent . struct_tag = fs - > struct_tag ;
cvSaveMemStoragePos ( fs - > strstorage , & parent . pos ) ;
cvSeqPush ( fs - > write_stack , & parent ) ;
fs - > struct_indent + = CV_XML_INDENT ;
if ( ! CV_NODE_IS_FLOW ( struct_flags ) )
icvXMLFlush ( fs ) ;
fs - > struct_flags = struct_flags ;
if ( key )
{
fs - > struct_tag = cvMemStorageAllocString ( fs - > strstorage , ( char * ) key , - 1 ) ;
}
else
{
fs - > struct_tag . ptr = 0 ;
fs - > struct_tag . len = 0 ;
}
}
static void
icvXMLEndWriteStruct ( CvFileStorage * fs )
{
CvXMLStackRecord parent ;
if ( fs - > write_stack - > total = = 0 )
CV_Error ( CV_StsError , " An extra closing tag " ) ;
icvXMLWriteTag ( fs , fs - > struct_tag . ptr , CV_XML_CLOSING_TAG , cvAttrList ( 0 , 0 ) ) ;
cvSeqPop ( fs - > write_stack , & parent ) ;
fs - > struct_indent = parent . struct_indent ;
fs - > struct_flags = parent . struct_flags ;
fs - > struct_tag = parent . struct_tag ;
cvRestoreMemStoragePos ( fs - > strstorage , & parent . pos ) ;
}
static void
icvXMLStartNextStream ( CvFileStorage * fs )
{
if ( ! fs - > is_first )
{
while ( fs - > write_stack - > total > 0 )
icvXMLEndWriteStruct ( fs ) ;
fs - > struct_indent = 0 ;
icvXMLFlush ( fs ) ;
/* XML does not allow multiple top-level elements,
so we just put a comment and continue
the current ( and the only ) " stream " */
icvPuts ( fs , " \n <!-- next stream --> \n " ) ;
/*fputs( "</opencv_storage>\n", fs->file );
fputs ( " <opencv_storage> \n " , fs - > file ) ; */
fs - > buffer = fs - > buffer_start ;
}
}
2016-08-11 00:53:15 +08:00
static void
icvXMLWriteScalar ( CvFileStorage * fs , const char * key , const char * data , int len )
{
check_if_write_struct_is_delayed ( fs ) ;
if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain )
{
switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
}
else if ( fs - > state_of_writing_base64 = = base64 : : fs : : InUse )
{
CV_Error ( CV_StsError , " Currently only Base64 data is allowed. " ) ;
}
if ( CV_NODE_IS_MAP ( fs - > struct_flags ) | |
( ! CV_NODE_IS_COLLECTION ( fs - > struct_flags ) & & key ) )
{
icvXMLWriteTag ( fs , key , CV_XML_OPENING_TAG , cvAttrList ( 0 , 0 ) ) ;
char * ptr = icvFSResizeWriteBuffer ( fs , fs - > buffer , len ) ;
memcpy ( ptr , data , len ) ;
fs - > buffer = ptr + len ;
icvXMLWriteTag ( fs , key , CV_XML_CLOSING_TAG , cvAttrList ( 0 , 0 ) ) ;
}
else
{
char * ptr = fs - > buffer ;
int new_offset = ( int ) ( ptr - fs - > buffer_start ) + len ;
if ( key )
CV_Error ( CV_StsBadArg , " elements with keys can not be written to sequence " ) ;
fs - > struct_flags = CV_NODE_SEQ ;
if ( ( new_offset > fs - > wrap_margin & & new_offset - fs - > struct_indent > 10 ) | |
( ptr > fs - > buffer_start & & ptr [ - 1 ] = = ' > ' & & ! CV_NODE_IS_EMPTY ( fs - > struct_flags ) ) )
{
ptr = icvXMLFlush ( fs ) ;
}
else if ( ptr > fs - > buffer_start + fs - > struct_indent & & ptr [ - 1 ] ! = ' > ' )
* ptr + + = ' ' ;
memcpy ( ptr , data , len ) ;
fs - > buffer = ptr + len ;
}
}
static void
icvXMLWriteInt ( CvFileStorage * fs , const char * key , int value )
{
char buf [ 128 ] , * ptr = icv_itoa ( value , buf , 10 ) ;
int len = ( int ) strlen ( ptr ) ;
icvXMLWriteScalar ( fs , key , ptr , len ) ;
}
static void
icvXMLWriteReal ( CvFileStorage * fs , const char * key , double value )
{
char buf [ 128 ] ;
int len = ( int ) strlen ( icvDoubleToString ( buf , value ) ) ;
icvXMLWriteScalar ( fs , key , buf , len ) ;
}
static void
icvXMLWriteString ( CvFileStorage * fs , const char * key , const char * str , int quote )
{
char buf [ CV_FS_MAX_LEN * 6 + 16 ] ;
char * data = ( char * ) str ;
int i , len ;
if ( ! str )
CV_Error ( CV_StsNullPtr , " Null string pointer " ) ;
len = ( int ) strlen ( str ) ;
if ( len > CV_FS_MAX_LEN )
CV_Error ( CV_StsBadArg , " The written string is too long " ) ;
if ( quote | | len = = 0 | | str [ 0 ] ! = ' \" ' | | str [ 0 ] ! = str [ len - 1 ] )
{
int need_quote = quote | | len = = 0 ;
data = buf ;
* data + + = ' \" ' ;
for ( i = 0 ; i < len ; i + + )
{
char c = str [ i ] ;
if ( ( uchar ) c > = 128 | | c = = ' ' )
{
* data + + = c ;
need_quote = 1 ;
}
else if ( ! cv_isprint ( c ) | | c = = ' < ' | | c = = ' > ' | | c = = ' & ' | | c = = ' \' ' | | c = = ' \" ' )
{
* data + + = ' & ' ;
if ( c = = ' < ' )
{
memcpy ( data , " lt " , 2 ) ;
data + = 2 ;
}
else if ( c = = ' > ' )
{
memcpy ( data , " gt " , 2 ) ;
data + = 2 ;
}
else if ( c = = ' & ' )
{
memcpy ( data , " amp " , 3 ) ;
data + = 3 ;
}
else if ( c = = ' \' ' )
{
memcpy ( data , " apos " , 4 ) ;
data + = 4 ;
}
else if ( c = = ' \" ' )
{
memcpy ( data , " quot " , 4 ) ;
data + = 4 ;
}
else
{
sprintf ( data , " #x%02x " , ( uchar ) c ) ;
data + = 4 ;
}
* data + + = ' ; ' ;
need_quote = 1 ;
}
else
* data + + = c ;
}
if ( ! need_quote & & ( cv_isdigit ( str [ 0 ] ) | |
str [ 0 ] = = ' + ' | | str [ 0 ] = = ' - ' | | str [ 0 ] = = ' . ' ) )
need_quote = 1 ;
if ( need_quote )
* data + + = ' \" ' ;
len = ( int ) ( data - buf ) - ! need_quote ;
* data + + = ' \0 ' ;
data = buf + ! need_quote ;
}
icvXMLWriteScalar ( fs , key , data , len ) ;
}
static void
icvXMLWriteComment ( CvFileStorage * fs , const char * comment , int eol_comment )
{
int len ;
int multiline ;
const char * eol ;
char * ptr ;
if ( ! comment )
CV_Error ( CV_StsNullPtr , " Null comment " ) ;
if ( strstr ( comment , " -- " ) ! = 0 )
CV_Error ( CV_StsBadArg , " Double hyphen \' -- \' is not allowed in the comments " ) ;
len = ( int ) strlen ( comment ) ;
eol = strchr ( comment , ' \n ' ) ;
multiline = eol ! = 0 ;
ptr = fs - > buffer ;
if ( multiline | | ! eol_comment | | fs - > buffer_end - ptr < len + 5 )
ptr = icvXMLFlush ( fs ) ;
else if ( ptr > fs - > buffer_start + fs - > struct_indent )
* ptr + + = ' ' ;
if ( ! multiline )
{
ptr = icvFSResizeWriteBuffer ( fs , ptr , len + 9 ) ;
sprintf ( ptr , " <!-- %s --> " , comment ) ;
len = ( int ) strlen ( ptr ) ;
}
else
{
strcpy ( ptr , " <!-- " ) ;
len = 4 ;
}
fs - > buffer = ptr + len ;
ptr = icvXMLFlush ( fs ) ;
if ( multiline )
{
while ( comment )
{
if ( eol )
{
ptr = icvFSResizeWriteBuffer ( fs , ptr , ( int ) ( eol - comment ) + 1 ) ;
memcpy ( ptr , comment , eol - comment + 1 ) ;
ptr + = eol - comment ;
comment = eol + 1 ;
eol = strchr ( comment , ' \n ' ) ;
}
else
{
len = ( int ) strlen ( comment ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , len ) ;
memcpy ( ptr , comment , len ) ;
ptr + = len ;
comment = 0 ;
}
fs - > buffer = ptr ;
ptr = icvXMLFlush ( fs ) ;
}
sprintf ( ptr , " --> " ) ;
fs - > buffer = ptr + 3 ;
icvXMLFlush ( fs ) ;
}
}
/****************************************************************************************\
* JSON Parser *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static char *
icvJSONSkipSpaces ( CvFileStorage * fs , char * ptr )
{
bool is_eof = false ;
bool is_completed = false ;
while ( is_eof = = false & & is_completed = = false )
{
switch ( * ptr )
{
/* comment */
case ' / ' : {
ptr + + ;
if ( * ptr = = ' \0 ' )
{
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr ) { is_eof = true ; break ; }
}
if ( * ptr = = ' / ' )
{
while ( * ptr ! = ' \n ' & & * ptr ! = ' \r ' )
{
if ( * ptr = = ' \0 ' )
{
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr ) { is_eof = true ; break ; }
}
else
{
ptr + + ;
}
}
}
else if ( * ptr = = ' * ' )
{
ptr + + ;
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for ( ; ; )
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{
if ( * ptr = = ' \0 ' )
{
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr ) { is_eof = true ; break ; }
}
else if ( * ptr = = ' * ' )
{
ptr + + ;
if ( * ptr = = ' \0 ' )
{
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr ) { is_eof = true ; break ; }
}
if ( * ptr = = ' / ' )
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{
ptr + + ;
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break ;
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}
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}
else
{
ptr + + ;
}
}
}
else
{
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CV_PARSE_ERROR ( " Not supported escape character " ) ;
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}
} break ;
/* whitespace */
case ' \t ' :
case ' ' : {
ptr + + ;
} break ;
/* newline || end mark */
case ' \0 ' :
case ' \n ' :
case ' \r ' : {
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr ) { is_eof = true ; break ; }
} break ;
/* other character */
default : {
if ( ! cv_isprint ( * ptr ) )
CV_PARSE_ERROR ( " Invalid character in the stream " ) ;
is_completed = true ;
} break ;
}
}
if ( is_eof )
{
ptr = fs - > buffer_start ;
* ptr = ' \0 ' ;
fs - > dummy_eof = 1 ;
}
else if ( ! is_completed )
{
/* should not be executed */
ptr = 0 ;
fs - > dummy_eof = 1 ;
CV_PARSE_ERROR ( " Abort at parse time " ) ;
}
return ptr ;
}
static char * icvJSONParseKey ( CvFileStorage * fs , char * ptr , CvFileNode * map , CvFileNode * * value_placeholder )
{
if ( * ptr ! = ' " ' )
CV_PARSE_ERROR ( " Key must start with \' \" \' " ) ;
char * beg = ptr + 1 ;
char * end = beg ;
do + + ptr ;
while ( cv_isprint ( * ptr ) & & * ptr ! = ' " ' ) ;
if ( * ptr ! = ' " ' )
CV_PARSE_ERROR ( " Key must end with \' \" \' " ) ;
end = ptr ;
ptr + + ;
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
return 0 ;
if ( * ptr ! = ' : ' )
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CV_PARSE_ERROR ( " Missing \' : \' between key and value " ) ;
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/* [beg, end) */
if ( end < = beg )
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CV_PARSE_ERROR ( " Key is empty " ) ;
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if ( end - beg = = 7u & & memcmp ( beg , " type_id " , 7u ) = = 0 )
{
* value_placeholder = 0 ;
}
else
{
CvStringHashNode * str_hash_node = cvGetHashedKey ( fs , beg , static_cast < int > ( end - beg ) , 1 ) ;
* value_placeholder = cvGetFileNode ( fs , map , str_hash_node , 1 ) ;
}
ptr + + ;
return ptr ;
}
static char * icvJSONParseValue ( CvFileStorage * fs , char * ptr , CvFileNode * node )
{
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
CV_PARSE_ERROR ( " Unexpected End-Of-File " ) ;
memset ( node , 0 , sizeof ( * node ) ) ;
if ( * ptr = = ' " ' )
{ /* must be string or Base64 string */
ptr + + ;
char * beg = ptr ;
size_t len = 0u ;
for ( ; ( cv_isalnum ( * ptr ) | | * ptr = = ' $ ' ) & & len < = 9u ; ptr + + )
len + + ;
if ( len > = 8u & & memcmp ( beg , " $base64$ " , 8u ) = = 0 )
{ /**************** Base64 string ****************/
ptr = beg + = 8 ;
std : : string base64_buffer ;
base64_buffer . reserve ( PARSER_BASE64_BUFFER_SIZE ) ;
bool is_matching = false ;
while ( ! is_matching )
{
switch ( * ptr )
{
case ' \0 ' :
{
base64_buffer . append ( beg , ptr ) ;
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr )
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
beg = ptr ;
break ;
}
case ' \" ' :
{
base64_buffer . append ( beg , ptr ) ;
beg = ptr ;
is_matching = true ;
break ;
}
case ' \n ' :
case ' \r ' :
{
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
break ;
}
default :
{
ptr + + ;
break ;
}
}
}
if ( * ptr ! = ' \" ' )
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
else
ptr + + ;
if ( base64_buffer . size ( ) > = base64 : : ENCODED_HEADER_SIZE )
{
const char * base64_beg = base64_buffer . data ( ) ;
const char * base64_end = base64_beg + base64_buffer . size ( ) ;
/* get dt from header */
std : : string dt ;
{
std : : vector < char > header ( base64 : : HEADER_SIZE + 1 , ' ' ) ;
base64 : : base64_decode ( base64_beg , header . data ( ) , 0U , base64 : : ENCODED_HEADER_SIZE ) ;
if ( ! base64 : : read_base64_header ( header , dt ) | | dt . empty ( ) )
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CV_PARSE_ERROR ( " Invalid `dt` in Base64 header " ) ;
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}
/* set base64_beg to beginning of base64 data */
base64_beg = & base64_buffer . at ( base64 : : ENCODED_HEADER_SIZE ) ;
if ( base64_buffer . size ( ) > base64 : : ENCODED_HEADER_SIZE )
{
if ( ! base64 : : base64_valid ( base64_beg , 0U , base64_end - base64_beg ) )
CV_PARSE_ERROR ( " Invalid Base64 data. " ) ;
/* buffer for decoded data(exclude header) */
std : : vector < uchar > binary_buffer ( base64 : : base64_decode_buffer_size ( base64_end - base64_beg ) ) ;
int total_byte_size = static_cast < int > (
base64 : : base64_decode_buffer_size ( base64_end - base64_beg , base64_beg , false )
) ;
{
base64 : : Base64ContextParser parser ( binary_buffer . data ( ) , binary_buffer . size ( ) ) ;
const uchar * binary_beg = reinterpret_cast < const uchar * > ( base64_beg ) ;
const uchar * binary_end = binary_beg + ( base64_end - base64_beg ) ;
parser . read ( binary_beg , binary_end ) ;
parser . flush ( ) ;
}
/* save as CvSeq */
int elem_size = : : icvCalcStructSize ( dt . c_str ( ) , 0 ) ;
if ( total_byte_size % elem_size ! = 0 )
CV_PARSE_ERROR ( " Byte size not match elememt size " ) ;
int elem_cnt = total_byte_size / elem_size ;
/* after icvFSCreateCollection, node->tag == struct_flags */
icvFSCreateCollection ( fs , CV_NODE_FLOW | CV_NODE_SEQ , node ) ;
base64 : : make_seq ( binary_buffer . data ( ) , elem_cnt , dt . c_str ( ) , * node - > data . seq ) ;
}
else
{
/* empty */
icvFSCreateCollection ( fs , CV_NODE_FLOW | CV_NODE_SEQ , node ) ;
}
}
else if ( base64_buffer . empty ( ) )
{
/* empty */
icvFSCreateCollection ( fs , CV_NODE_FLOW | CV_NODE_SEQ , node ) ;
}
else
{
CV_PARSE_ERROR ( " Unrecognized Base64 header " ) ;
}
}
else
{ /**************** normal string ****************/
std : : string string_buffer ;
string_buffer . reserve ( PARSER_BASE64_BUFFER_SIZE ) ;
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ptr = beg ;
bool is_matching = false ;
while ( ! is_matching )
{
switch ( * ptr )
{
case ' \\ ' :
{
string_buffer . append ( beg , ptr ) ;
ptr + + ;
switch ( * ptr )
{
case ' \\ ' :
case ' \" ' :
case ' \' ' : { string_buffer . append ( 1u , * ptr ) ; break ; }
case ' n ' : { string_buffer . append ( 1u , ' \n ' ) ; break ; }
case ' r ' : { string_buffer . append ( 1u , ' \r ' ) ; break ; }
case ' t ' : { string_buffer . append ( 1u , ' \t ' ) ; break ; }
case ' b ' : { string_buffer . append ( 1u , ' \b ' ) ; break ; }
case ' f ' : { string_buffer . append ( 1u , ' \f ' ) ; break ; }
case ' u ' : { CV_PARSE_ERROR ( " ' \\ uXXXX' currently not supported " ) ; }
default : { CV_PARSE_ERROR ( " Invalid escape character " ) ; }
break ;
}
ptr + + ;
beg = ptr ;
break ;
}
case ' \0 ' :
{
string_buffer . append ( beg , ptr ) ;
ptr = icvGets ( fs , fs - > buffer_start , static_cast < int > ( fs - > buffer_end - fs - > buffer_start ) ) ;
if ( ! ptr )
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
beg = ptr ;
break ;
}
case ' \" ' :
{
string_buffer . append ( beg , ptr ) ;
beg = ptr ;
is_matching = true ;
break ;
}
case ' \n ' :
case ' \r ' :
{
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
break ;
}
default :
{
ptr + + ;
break ;
}
}
}
if ( * ptr ! = ' \" ' )
CV_PARSE_ERROR ( " ' \" ' - right-quote of string is missing " ) ;
else
ptr + + ;
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node - > data . str = cvMemStorageAllocString
(
fs - > memstorage ,
string_buffer . c_str ( ) ,
static_cast < int > ( string_buffer . size ( ) )
) ;
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node - > tag = CV_NODE_STRING ;
}
}
else if ( cv_isdigit ( * ptr ) | | * ptr = = ' - ' | | * ptr = = ' + ' | | * ptr = = ' . ' )
{ /**************** number ****************/
char * beg = ptr ;
if ( * ptr = = ' + ' | | * ptr = = ' - ' )
ptr + + ;
while ( cv_isdigit ( * ptr ) )
ptr + + ;
if ( * ptr = = ' . ' | | * ptr = = ' e ' )
{
node - > data . f = icv_strtod ( fs , beg , & ptr ) ;
node - > tag = CV_NODE_REAL ;
}
else
{
node - > data . i = static_cast < int > ( strtol ( beg , & ptr , 0 ) ) ;
node - > tag = CV_NODE_INT ;
}
if ( beg > = ptr )
CV_PARSE_ERROR ( " Invalid numeric value (inconsistent explicit type specification?) " ) ;
}
else
{ /**************** other data ****************/
const char * beg = ptr ;
size_t len = 0u ;
for ( ; cv_isalpha ( * ptr ) & & len < = 6u ; ptr + + )
len + + ;
if ( len > = 4u & & memcmp ( beg , " null " , 4u ) = = 0 )
{
CV_PARSE_ERROR ( " Value 'null' is not supported by this parser " ) ;
}
else if ( len > = 4u & & memcmp ( beg , " true " , 4u ) = = 0 )
{
node - > data . i = 1 ;
node - > tag = CV_NODE_INT ;
}
else if ( len > = 5u & & memcmp ( beg , " false " , 5u ) = = 0 )
{
node - > data . i = 0 ;
node - > tag = CV_NODE_INT ;
}
else
{
CV_PARSE_ERROR ( " Unrecognized value " ) ;
}
ptr + + ;
}
return ptr ;
}
static char * icvJSONParseSeq ( CvFileStorage * fs , char * ptr , CvFileNode * node ) ;
static char * icvJSONParseMap ( CvFileStorage * fs , char * ptr , CvFileNode * node ) ;
static char * icvJSONParseSeq ( CvFileStorage * fs , char * ptr , CvFileNode * node )
{
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if ( ! ptr )
CV_PARSE_ERROR ( " ptr is NULL " ) ;
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if ( * ptr ! = ' [ ' )
CV_PARSE_ERROR ( " '[' - left-brace of seq is missing " ) ;
else
ptr + + ;
memset ( node , 0 , sizeof ( * node ) ) ;
icvFSCreateCollection ( fs , CV_NODE_SEQ , node ) ;
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for ( ; ; )
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{
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
break ;
if ( * ptr ! = ' ] ' )
{
CvFileNode * child = ( CvFileNode * ) cvSeqPush ( node - > data . seq , 0 ) ;
if ( * ptr = = ' [ ' )
ptr = icvJSONParseSeq ( fs , ptr , child ) ;
else if ( * ptr = = ' { ' )
ptr = icvJSONParseMap ( fs , ptr , child ) ;
else
ptr = icvJSONParseValue ( fs , ptr , child ) ;
}
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
break ;
if ( * ptr = = ' , ' )
ptr + + ;
else if ( * ptr = = ' ] ' )
break ;
else
CV_PARSE_ERROR ( " Unexpected character " ) ;
}
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if ( ! ptr )
CV_PARSE_ERROR ( " ptr is NULL " ) ;
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if ( * ptr ! = ' ] ' )
CV_PARSE_ERROR ( " ']' - right-brace of seq is missing " ) ;
else
ptr + + ;
return ptr ;
}
static char * icvJSONParseMap ( CvFileStorage * fs , char * ptr , CvFileNode * node )
{
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if ( ! ptr )
CV_PARSE_ERROR ( " ptr is NULL " ) ;
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if ( * ptr ! = ' { ' )
CV_PARSE_ERROR ( " '{' - left-brace of map is missing " ) ;
else
ptr + + ;
memset ( node , 0 , sizeof ( * node ) ) ;
icvFSCreateCollection ( fs , CV_NODE_MAP , node ) ;
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for ( ; ; )
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{
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
break ;
if ( * ptr = = ' " ' )
{
CvFileNode * child = 0 ;
ptr = icvJSONParseKey ( fs , ptr , node , & child ) ;
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if ( ptr = = 0 | | fs - > dummy_eof )
break ;
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ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
break ;
if ( child = = 0 )
{ /* type_id */
CvFileNode tmp ;
ptr = icvJSONParseValue ( fs , ptr , & tmp ) ;
if ( CV_NODE_IS_STRING ( tmp . tag ) )
{
node - > info = cvFindType ( tmp . data . str . ptr ) ;
if ( node - > info )
node - > tag | = CV_NODE_USER ;
// delete tmp.data.str
}
else
{
CV_PARSE_ERROR ( " \" type_id \" should be of type string " ) ;
}
}
else
{ /* normal */
if ( * ptr = = ' [ ' )
ptr = icvJSONParseSeq ( fs , ptr , child ) ;
else if ( * ptr = = ' { ' )
ptr = icvJSONParseMap ( fs , ptr , child ) ;
else
ptr = icvJSONParseValue ( fs , ptr , child ) ;
}
}
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
break ;
if ( * ptr = = ' , ' )
ptr + + ;
else if ( * ptr = = ' } ' )
break ;
else
CV_PARSE_ERROR ( " Unexpected character " ) ;
}
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if ( ! ptr )
CV_PARSE_ERROR ( " ptr is NULL " ) ;
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if ( * ptr ! = ' } ' )
CV_PARSE_ERROR ( " '}' - right-brace of map is missing " ) ;
else
ptr + + ;
return ptr ;
}
static void
icvJSONParse ( CvFileStorage * fs )
{
char * ptr = fs - > buffer_start ;
ptr = icvJSONSkipSpaces ( fs , ptr ) ;
if ( ptr = = 0 | | fs - > dummy_eof )
return ;
if ( * ptr = = ' { ' )
{
CvFileNode * root_node = ( CvFileNode * ) cvSeqPush ( fs - > roots , 0 ) ;
ptr = icvJSONParseMap ( fs , ptr , root_node ) ;
}
else if ( * ptr = = ' [ ' )
{
CvFileNode * root_node = ( CvFileNode * ) cvSeqPush ( fs - > roots , 0 ) ;
ptr = icvJSONParseSeq ( fs , ptr , root_node ) ;
}
else
{
CV_PARSE_ERROR ( " left-brace of top level is missing " ) ;
}
if ( fs - > dummy_eof ! = 0 )
CV_PARSE_ERROR ( " Unexpected End-Of-File " ) ;
}
/****************************************************************************************\
* JSON Emitter *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static void
icvJSONWrite ( CvFileStorage * fs , const char * key , const char * data )
{
/* check write_struct */
check_if_write_struct_is_delayed ( fs ) ;
if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain )
{
switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
}
else if ( fs - > state_of_writing_base64 = = base64 : : fs : : InUse )
{
CV_Error ( CV_StsError , " At present, output Base64 data only. " ) ;
}
/* check parameters */
size_t key_len = 0u ;
if ( key & & * key = = ' \0 ' )
key = 0 ;
if ( key )
{
key_len = strlen ( key ) ;
if ( key_len = = 0u )
CV_Error ( CV_StsBadArg , " The key is an empty " ) ;
else if ( static_cast < int > ( key_len ) > CV_FS_MAX_LEN )
CV_Error ( CV_StsBadArg , " The key is too long " ) ;
}
size_t data_len = 0u ;
if ( data )
data_len = strlen ( data ) ;
int struct_flags = fs - > struct_flags ;
if ( CV_NODE_IS_COLLECTION ( struct_flags ) )
{
if ( ( CV_NODE_IS_MAP ( struct_flags ) ^ ( key ! = 0 ) ) )
CV_Error ( CV_StsBadArg , " An attempt to add element without a key to a map, "
" or add element with key to sequence " ) ;
} else {
fs - > is_first = 0 ;
struct_flags = CV_NODE_EMPTY | ( key ? CV_NODE_MAP : CV_NODE_SEQ ) ;
}
/* start to write */
char * ptr = 0 ;
if ( CV_NODE_IS_FLOW ( struct_flags ) )
{
int new_offset ;
ptr = fs - > buffer ;
if ( ! CV_NODE_IS_EMPTY ( struct_flags ) )
* ptr + + = ' , ' ;
new_offset = static_cast < int > ( ptr - fs - > buffer_start + key_len + data_len ) ;
if ( new_offset > fs - > wrap_margin & & new_offset - fs - > struct_indent > 10 )
{
fs - > buffer = ptr ;
ptr = icvFSFlush ( fs ) ;
}
else
* ptr + + = ' ' ;
}
else
{
if ( ! CV_NODE_IS_EMPTY ( struct_flags ) )
{
ptr = fs - > buffer ;
* ptr + + = ' , ' ;
* ptr + + = ' \n ' ;
* ptr + + = ' \0 ' ;
: : icvPuts ( fs , fs - > buffer_start ) ;
ptr = fs - > buffer = fs - > buffer_start ;
}
ptr = icvFSFlush ( fs ) ;
}
if ( key )
{
if ( ! cv_isalpha ( key [ 0 ] ) & & key [ 0 ] ! = ' _ ' )
CV_Error ( CV_StsBadArg , " Key must start with a letter or _ " ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , static_cast < int > ( key_len ) ) ;
* ptr + + = ' \" ' ;
for ( size_t i = 0u ; i < key_len ; i + + )
{
char c = key [ i ] ;
ptr [ i ] = c ;
if ( ! cv_isalnum ( c ) & & c ! = ' - ' & & c ! = ' _ ' & & c ! = ' ' )
CV_Error ( CV_StsBadArg , " Key names may only contain alphanumeric characters [a-zA-Z0-9], '-', '_' and ' ' " ) ;
}
ptr + = key_len ;
* ptr + + = ' \" ' ;
* ptr + + = ' : ' ;
* ptr + + = ' ' ;
}
if ( data )
{
ptr = icvFSResizeWriteBuffer ( fs , ptr , static_cast < int > ( data_len ) ) ;
memcpy ( ptr , data , data_len ) ;
ptr + = data_len ;
}
fs - > buffer = ptr ;
fs - > struct_flags = struct_flags & ~ CV_NODE_EMPTY ;
}
static void
icvJSONStartWriteStruct ( CvFileStorage * fs , const char * key , int struct_flags ,
const char * type_name CV_DEFAULT ( 0 ) )
{
int parent_flags ;
char data [ CV_FS_MAX_LEN + 1024 ] ;
struct_flags = ( struct_flags & ( CV_NODE_TYPE_MASK | CV_NODE_FLOW ) ) | CV_NODE_EMPTY ;
if ( ! CV_NODE_IS_COLLECTION ( struct_flags ) )
CV_Error ( CV_StsBadArg ,
" Some collection type - CV_NODE_SEQ or CV_NODE_MAP, must be specified " ) ;
if ( type_name & & * type_name = = ' \0 ' )
type_name = 0 ;
bool has_type_id = false ;
bool is_real_collection = true ;
if ( type_name & & memcmp ( type_name , " binary " , 6 ) = = 0 )
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{
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struct_flags = CV_NODE_STR ;
data [ 0 ] = ' \0 ' ;
is_real_collection = false ;
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}
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else if ( type_name )
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{
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has_type_id = true ;
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}
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if ( is_real_collection )
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{
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char c = CV_NODE_IS_MAP ( struct_flags ) ? ' { ' : ' [ ' ;
data [ 0 ] = c ;
data [ 1 ] = ' \0 ' ;
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}
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icvJSONWrite ( fs , key , data ) ;
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parent_flags = fs - > struct_flags ;
cvSeqPush ( fs - > write_stack , & parent_flags ) ;
fs - > struct_flags = struct_flags ;
fs - > struct_indent + = 4 ;
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if ( has_type_id )
fs - > write_string ( fs , " type_id " , type_name , 1 ) ;
}
static void
icvJSONEndWriteStruct ( CvFileStorage * fs )
{
if ( fs - > write_stack - > total = = 0 )
CV_Error ( CV_StsError , " EndWriteStruct w/o matching StartWriteStruct " ) ;
int parent_flags = 0 ;
int struct_flags = fs - > struct_flags ;
cvSeqPop ( fs - > write_stack , & parent_flags ) ;
fs - > struct_indent - = 4 ;
fs - > struct_flags = parent_flags & ~ CV_NODE_EMPTY ;
assert ( fs - > struct_indent > = 0 ) ;
if ( CV_NODE_IS_COLLECTION ( struct_flags ) )
{
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if ( ! CV_NODE_IS_FLOW ( struct_flags ) )
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{
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if ( fs - > buffer < = fs - > buffer_start + fs - > space )
{
/* some bad code for base64_writer... */
* fs - > buffer + + = ' \n ' ;
* fs - > buffer + + = ' \0 ' ;
icvPuts ( fs , fs - > buffer_start ) ;
fs - > buffer = fs - > buffer_start ;
}
icvFSFlush ( fs ) ;
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}
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char * ptr = fs - > buffer ;
if ( ptr > fs - > buffer_start + fs - > struct_indent & & ! CV_NODE_IS_EMPTY ( struct_flags ) )
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* ptr + + = ' ' ;
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* ptr + + = CV_NODE_IS_MAP ( struct_flags ) ? ' } ' : ' ] ' ;
fs - > buffer = ptr ;
}
}
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static void
icvJSONStartNextStream ( CvFileStorage * fs )
{
if ( ! fs - > is_first )
{
while ( fs - > write_stack - > total > 0 )
icvJSONEndWriteStruct ( fs ) ;
fs - > struct_indent = 4 ;
icvFSFlush ( fs ) ;
fs - > buffer = fs - > buffer_start ;
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}
}
static void
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icvJSONWriteInt ( CvFileStorage * fs , const char * key , int value )
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{
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char buf [ 128 ] ;
icvJSONWrite ( fs , key , icv_itoa ( value , buf , 10 ) ) ;
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}
static void
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icvJSONWriteReal ( CvFileStorage * fs , const char * key , double value )
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{
char buf [ 128 ] ;
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size_t len = strlen ( icvDoubleToString ( buf , value ) ) ;
if ( len > 0 & & buf [ len - 1 ] = = ' . ' )
{
// append zero if string ends with decimal place to match JSON standard
buf [ len ] = ' 0 ' ;
buf [ len + 1 ] = ' \0 ' ;
}
icvJSONWrite ( fs , key , buf ) ;
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}
static void
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icvJSONWriteString ( CvFileStorage * fs , const char * key ,
const char * str , int quote CV_DEFAULT ( 0 ) )
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{
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char buf [ CV_FS_MAX_LEN * 4 + 16 ] ;
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char * data = ( char * ) str ;
int i , len ;
if ( ! str )
CV_Error ( CV_StsNullPtr , " Null string pointer " ) ;
len = ( int ) strlen ( str ) ;
if ( len > CV_FS_MAX_LEN )
CV_Error ( CV_StsBadArg , " The written string is too long " ) ;
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if ( quote | | len = = 0 | | str [ 0 ] ! = str [ len - 1 ] | | ( str [ 0 ] ! = ' \" ' & & str [ 0 ] ! = ' \' ' ) )
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{
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int need_quote = 1 ;
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data = buf ;
* data + + = ' \" ' ;
for ( i = 0 ; i < len ; i + + )
{
char c = str [ i ] ;
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switch ( c )
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{
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case ' \\ ' :
case ' \" ' :
case ' \' ' : { * data + + = ' \\ ' ; * data + + = c ; break ; }
case ' \n ' : { * data + + = ' \\ ' ; * data + + = ' n ' ; break ; }
case ' \r ' : { * data + + = ' \\ ' ; * data + + = ' r ' ; break ; }
case ' \t ' : { * data + + = ' \\ ' ; * data + + = ' t ' ; break ; }
case ' \b ' : { * data + + = ' \\ ' ; * data + + = ' b ' ; break ; }
case ' \f ' : { * data + + = ' \\ ' ; * data + + = ' f ' ; break ; }
default : { * data + + = c ; }
break ;
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}
}
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* data + + = ' \" ' ;
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* data + + = ' \0 ' ;
data = buf + ! need_quote ;
}
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icvJSONWrite ( fs , key , data ) ;
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}
static void
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icvJSONWriteComment ( CvFileStorage * fs , const char * comment , int eol_comment )
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{
if ( ! comment )
CV_Error ( CV_StsNullPtr , " Null comment " ) ;
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int len = static_cast < int > ( strlen ( comment ) ) ;
char * ptr = fs - > buffer ;
const char * eol = strchr ( comment , ' \n ' ) ;
bool multiline = eol ! = 0 ;
2010-05-12 01:44:00 +08:00
2016-08-11 00:53:15 +08:00
if ( ! eol_comment | | multiline | | fs - > buffer_end - ptr < len | | ptr = = fs - > buffer_start )
ptr = icvFSFlush ( fs ) ;
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else
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* ptr + + = ' ' ;
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2016-08-11 00:53:15 +08:00
while ( comment )
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{
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* ptr + + = ' / ' ;
* ptr + + = ' / ' ;
* ptr + + = ' ' ;
if ( eol )
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{
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ptr = icvFSResizeWriteBuffer ( fs , ptr , ( int ) ( eol - comment ) + 1 ) ;
memcpy ( ptr , comment , eol - comment + 1 ) ;
fs - > buffer = ptr + ( eol - comment ) ;
comment = eol + 1 ;
eol = strchr ( comment , ' \n ' ) ;
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}
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else
{
len = ( int ) strlen ( comment ) ;
ptr = icvFSResizeWriteBuffer ( fs , ptr , len ) ;
memcpy ( ptr , comment , len ) ;
fs - > buffer = ptr + len ;
comment = 0 ;
}
ptr = icvFSFlush ( fs ) ;
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}
}
/****************************************************************************************\
* Common High - Level Functions *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
CV_IMPL CvFileStorage *
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cvOpenFileStorage ( const char * query , CvMemStorage * dststorage , int flags , const char * encoding )
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{
CvFileStorage * fs = 0 ;
int default_block_size = 1 < < 18 ;
bool append = ( flags & 3 ) = = CV_STORAGE_APPEND ;
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bool mem = ( flags & CV_STORAGE_MEMORY ) ! = 0 ;
bool write_mode = ( flags & 3 ) ! = 0 ;
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bool write_base64 = ( write_mode | | append ) & & ( flags & CV_STORAGE_BASE64 ) ! = 0 ;
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bool isGZ = false ;
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size_t fnamelen = 0 ;
2016-07-19 19:56:57 +08:00
const char * filename = query ;
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2016-07-19 19:56:57 +08:00
std : : vector < std : : string > params ;
if ( ! mem )
{
params = analyze_file_name ( query ) ;
if ( ! params . empty ( ) )
filename = params . begin ( ) - > c_str ( ) ;
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if ( write_base64 = = false & & is_param_exist ( params , " base64 " ) )
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write_base64 = ( write_mode | | append ) ;
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}
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2012-05-28 23:38:58 +08:00
if ( ! filename | | filename [ 0 ] = = ' \0 ' )
{
if ( ! write_mode )
CV_Error ( CV_StsNullPtr , mem ? " NULL or empty filename " : " NULL or empty buffer " ) ;
mem = true ;
}
else
fnamelen = strlen ( filename ) ;
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if ( mem & & append )
CV_Error ( CV_StsBadFlag , " CV_STORAGE_APPEND and CV_STORAGE_MEMORY are not currently compatible " ) ;
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fs = ( CvFileStorage * ) cvAlloc ( sizeof ( * fs ) ) ;
2017-05-17 22:36:48 +08:00
CV_Assert ( fs ) ;
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memset ( fs , 0 , sizeof ( * fs ) ) ;
fs - > memstorage = cvCreateMemStorage ( default_block_size ) ;
fs - > dststorage = dststorage ? dststorage : fs - > memstorage ;
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fs - > flags = CV_FILE_STORAGE ;
fs - > write_mode = write_mode ;
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2012-05-28 23:38:58 +08:00
if ( ! mem )
2010-05-12 01:44:00 +08:00
{
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fs - > filename = ( char * ) cvMemStorageAlloc ( fs - > memstorage , fnamelen + 1 ) ;
strcpy ( fs - > filename , filename ) ;
2010-05-12 01:44:00 +08:00
2012-05-28 23:38:58 +08:00
char * dot_pos = strrchr ( fs - > filename , ' . ' ) ;
char compression = ' \0 ' ;
2010-05-12 01:44:00 +08:00
2012-05-28 23:38:58 +08:00
if ( dot_pos & & dot_pos [ 1 ] = = ' g ' & & dot_pos [ 2 ] = = ' z ' & &
( dot_pos [ 3 ] = = ' \0 ' | | ( cv_isdigit ( dot_pos [ 3 ] ) & & dot_pos [ 4 ] = = ' \0 ' ) ) )
{
if ( append )
2014-12-10 00:13:19 +08:00
{
cvReleaseFileStorage ( & fs ) ;
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CV_Error ( CV_StsNotImplemented , " Appending data to compressed file is not implemented " ) ;
2014-12-10 00:13:19 +08:00
}
2012-05-28 23:38:58 +08:00
isGZ = true ;
compression = dot_pos [ 3 ] ;
if ( compression )
dot_pos [ 3 ] = ' \0 ' , fnamelen - - ;
}
2010-05-12 01:44:00 +08:00
2012-05-28 23:38:58 +08:00
if ( ! isGZ )
{
fs - > file = fopen ( fs - > filename , ! fs - > write_mode ? " rt " : ! append ? " wt " : " a+t " ) ;
if ( ! fs - > file )
goto _exit_ ;
}
else
{
2012-06-10 00:18:39 +08:00
# if USE_ZLIB
2012-05-28 23:38:58 +08:00
char mode [ ] = { fs - > write_mode ? ' w ' : ' r ' , ' b ' , compression ? compression : ' 3 ' , ' \0 ' } ;
fs - > gzfile = gzopen ( fs - > filename , mode ) ;
if ( ! fs - > gzfile )
goto _exit_ ;
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# else
2014-12-10 00:13:19 +08:00
cvReleaseFileStorage ( & fs ) ;
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CV_Error ( CV_StsNotImplemented , " There is no compressed file storage support in this configuration " ) ;
# endif
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}
}
2012-06-21 05:09:27 +08:00
2010-05-12 01:44:00 +08:00
fs - > roots = 0 ;
fs - > struct_indent = 0 ;
fs - > struct_flags = 0 ;
fs - > wrap_margin = 71 ;
if ( fs - > write_mode )
{
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int fmt = flags & CV_STORAGE_FORMAT_MASK ;
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2012-05-28 23:38:58 +08:00
if ( mem )
fs - > outbuf = new std : : deque < char > ;
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2012-05-28 23:38:58 +08:00
if ( fmt = = CV_STORAGE_FORMAT_AUTO & & filename )
{
2016-08-11 00:53:15 +08:00
const char * dot_pos = strrchr ( filename , ' . ' ) ;
fs - > fmt
= cv_strcasecmp ( dot_pos , " .xml " )
? CV_STORAGE_FORMAT_XML
: cv_strcasecmp ( dot_pos , " .json " )
? CV_STORAGE_FORMAT_JSON
: CV_STORAGE_FORMAT_YAML
;
}
else if ( fmt ! = CV_STORAGE_FORMAT_AUTO )
{
fs - > fmt = fmt ;
2012-05-28 23:38:58 +08:00
}
else
2016-08-11 00:53:15 +08:00
{
fs - > fmt = CV_STORAGE_FORMAT_XML ;
}
2012-06-21 05:09:27 +08:00
2010-05-12 01:44:00 +08:00
// we use factor=6 for XML (the longest characters (' and ") are encoded with 6 bytes (' and ")
// and factor=4 for YAML ( as we use 4 bytes for non ASCII characters (e.g. \xAB))
2012-05-28 23:38:58 +08:00
int buf_size = CV_FS_MAX_LEN * ( fs - > fmt = = CV_STORAGE_FORMAT_XML ? 6 : 4 ) + 1024 ;
2010-05-12 01:44:00 +08:00
if ( append )
fseek ( fs - > file , 0 , SEEK_END ) ;
2012-05-28 23:38:58 +08:00
fs - > write_stack = cvCreateSeq ( 0 , sizeof ( CvSeq ) , fs - > fmt = = CV_STORAGE_FORMAT_XML ?
2010-05-12 01:44:00 +08:00
sizeof ( CvXMLStackRecord ) : sizeof ( int ) , fs - > memstorage ) ;
fs - > is_first = 1 ;
fs - > struct_indent = 0 ;
fs - > struct_flags = CV_NODE_EMPTY ;
fs - > buffer_start = fs - > buffer = ( char * ) cvAlloc ( buf_size + 1024 ) ;
fs - > buffer_end = fs - > buffer_start + buf_size ;
2016-07-19 15:54:38 +08:00
fs - > base64_writer = 0 ;
fs - > is_default_using_base64 = write_base64 ;
2016-07-19 21:18:41 +08:00
fs - > state_of_writing_base64 = base64 : : fs : : Uncertain ;
2016-07-19 15:54:38 +08:00
fs - > is_write_struct_delayed = false ;
fs - > delayed_struct_key = 0 ;
fs - > delayed_struct_flags = 0 ;
fs - > delayed_type_name = 0 ;
2012-05-28 23:38:58 +08:00
if ( fs - > fmt = = CV_STORAGE_FORMAT_XML )
2010-05-12 01:44:00 +08:00
{
2012-08-28 17:45:35 +08:00
size_t file_size = fs - > file ? ( size_t ) ftell ( fs - > file ) : ( size_t ) 0 ;
2010-05-12 01:44:00 +08:00
fs - > strstorage = cvCreateChildMemStorage ( fs - > memstorage ) ;
if ( ! append | | file_size = = 0 )
{
2011-05-30 20:36:07 +08:00
if ( encoding )
{
if ( strcmp ( encoding , " UTF-16 " ) = = 0 | |
strcmp ( encoding , " utf-16 " ) = = 0 | |
strcmp ( encoding , " Utf-16 " ) = = 0 )
2014-12-10 00:13:19 +08:00
{
cvReleaseFileStorage ( & fs ) ;
2011-05-30 20:36:07 +08:00
CV_Error ( CV_StsBadArg , " UTF-16 XML encoding is not supported! Use 8-bit encoding \n " ) ;
2014-12-10 00:13:19 +08:00
}
2012-02-17 04:29:35 +08:00
2011-05-30 20:36:07 +08:00
CV_Assert ( strlen ( encoding ) < 1000 ) ;
char buf [ 1100 ] ;
sprintf ( buf , " <?xml version= \" 1.0 \" encoding= \" %s \" ?> \n " , encoding ) ;
icvPuts ( fs , buf ) ;
}
else
icvPuts ( fs , " <?xml version= \" 1.0 \" ?> \n " ) ;
2010-05-12 01:44:00 +08:00
icvPuts ( fs , " <opencv_storage> \n " ) ;
}
else
{
int xml_buf_size = 1 < < 10 ;
char substr [ ] = " </opencv_storage> " ;
int last_occurence = - 1 ;
2012-05-31 14:59:06 +08:00
xml_buf_size = MIN ( xml_buf_size , int ( file_size ) ) ;
2010-05-12 01:44:00 +08:00
fseek ( fs - > file , - xml_buf_size , SEEK_END ) ;
2014-12-22 23:54:39 +08:00
char * xml_buf = ( char * ) cvAlloc ( xml_buf_size + 2 ) ;
2010-05-12 01:44:00 +08:00
// find the last occurence of </opencv_storage>
for ( ; ; )
{
2014-10-17 20:32:53 +08:00
int line_offset = ( int ) ftell ( fs - > file ) ;
2010-05-12 01:44:00 +08:00
char * ptr0 = icvGets ( fs , xml_buf , xml_buf_size ) , * ptr ;
if ( ! ptr0 )
break ;
ptr = ptr0 ;
for ( ; ; )
{
ptr = strstr ( ptr , substr ) ;
if ( ! ptr )
break ;
last_occurence = line_offset + ( int ) ( ptr - ptr0 ) ;
ptr + = strlen ( substr ) ;
}
}
2014-12-22 23:54:39 +08:00
cvFree ( & xml_buf ) ;
2010-05-12 01:44:00 +08:00
if ( last_occurence < 0 )
2014-12-10 00:13:19 +08:00
{
cvReleaseFileStorage ( & fs ) ;
2010-05-12 01:44:00 +08:00
CV_Error ( CV_StsError , " Could not find </opencv_storage> in the end of file. \n " ) ;
2014-12-10 00:13:19 +08:00
}
2012-05-28 23:38:58 +08:00
icvCloseFile ( fs ) ;
2010-05-12 01:44:00 +08:00
fs - > file = fopen ( fs - > filename , " r+t " ) ;
2017-05-17 22:36:48 +08:00
CV_Assert ( fs - > file ) ;
2010-05-12 01:44:00 +08:00
fseek ( fs - > file , last_occurence , SEEK_SET ) ;
// replace the last "</opencv_storage>" with " <!-- resumed -->", which has the same length
icvPuts ( fs , " <!-- resumed --> " ) ;
fseek ( fs - > file , 0 , SEEK_END ) ;
icvPuts ( fs , " \n " ) ;
}
fs - > start_write_struct = icvXMLStartWriteStruct ;
fs - > end_write_struct = icvXMLEndWriteStruct ;
fs - > write_int = icvXMLWriteInt ;
fs - > write_real = icvXMLWriteReal ;
fs - > write_string = icvXMLWriteString ;
fs - > write_comment = icvXMLWriteComment ;
fs - > start_next_stream = icvXMLStartNextStream ;
}
2016-08-11 00:53:15 +08:00
else if ( fs - > fmt = = CV_STORAGE_FORMAT_YAML )
2010-05-12 01:44:00 +08:00
{
if ( ! append )
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icvPuts ( fs , " %YAML:1.0 \n --- \n " ) ;
2010-05-12 01:44:00 +08:00
else
icvPuts ( fs , " ... \n --- \n " ) ;
fs - > start_write_struct = icvYMLStartWriteStruct ;
fs - > end_write_struct = icvYMLEndWriteStruct ;
fs - > write_int = icvYMLWriteInt ;
fs - > write_real = icvYMLWriteReal ;
fs - > write_string = icvYMLWriteString ;
fs - > write_comment = icvYMLWriteComment ;
fs - > start_next_stream = icvYMLStartNextStream ;
}
2016-08-11 00:53:15 +08:00
else
{
if ( ! append )
icvPuts ( fs , " { \n " ) ;
else
{
bool valid = false ;
long roffset = 0 ;
for ( ;
fseek ( fs - > file , roffset , SEEK_END ) = = 0 ;
roffset - = 1 )
{
const char end_mark = ' } ' ;
if ( fgetc ( fs - > file ) = = end_mark )
{
fseek ( fs - > file , roffset , SEEK_END ) ;
valid = true ;
break ;
}
}
if ( valid )
{
icvCloseFile ( fs ) ;
fs - > file = fopen ( fs - > filename , " r+t " ) ;
2017-05-17 22:36:48 +08:00
CV_Assert ( fs - > file ) ;
2016-08-11 00:53:15 +08:00
fseek ( fs - > file , roffset , SEEK_END ) ;
fputs ( " , " , fs - > file ) ;
}
else
{
CV_Error ( CV_StsError , " Could not find '}' in the end of file. \n " ) ;
}
}
fs - > struct_indent = 4 ;
fs - > start_write_struct = icvJSONStartWriteStruct ;
fs - > end_write_struct = icvJSONEndWriteStruct ;
fs - > write_int = icvJSONWriteInt ;
fs - > write_real = icvJSONWriteReal ;
fs - > write_string = icvJSONWriteString ;
fs - > write_comment = icvJSONWriteComment ;
fs - > start_next_stream = icvJSONStartNextStream ;
}
2010-05-12 01:44:00 +08:00
}
else
{
2012-05-28 23:38:58 +08:00
if ( mem )
{
fs - > strbuf = filename ;
fs - > strbufsize = fnamelen ;
}
2012-06-21 05:09:27 +08:00
2012-05-28 23:38:58 +08:00
size_t buf_size = 1 < < 20 ;
2016-06-18 21:40:29 +08:00
const char * yaml_signature = " %YAML " ;
2016-08-11 00:53:15 +08:00
const char * json_signature = " { " ;
2016-11-02 19:53:04 +08:00
const char * xml_signature = " <?xml " ;
2010-05-12 01:44:00 +08:00
char buf [ 16 ] ;
icvGets ( fs , buf , sizeof ( buf ) - 2 ) ;
2016-11-01 17:24:30 +08:00
char * bufPtr = cv_skip_BOM ( buf ) ;
size_t bufOffset = bufPtr - buf ;
2016-11-02 19:53:04 +08:00
if ( strncmp ( bufPtr , yaml_signature , strlen ( yaml_signature ) ) = = 0 )
fs - > fmt = CV_STORAGE_FORMAT_YAML ;
else if ( strncmp ( bufPtr , json_signature , strlen ( json_signature ) ) = = 0 )
fs - > fmt = CV_STORAGE_FORMAT_JSON ;
else if ( strncmp ( bufPtr , xml_signature , strlen ( xml_signature ) ) = = 0 )
fs - > fmt = CV_STORAGE_FORMAT_XML ;
else if ( fs - > strbufsize = = bufOffset )
CV_Error ( CV_BADARG_ERR , " Input file is empty " ) ;
else
CV_Error ( CV_BADARG_ERR , " Unsupported file storage format " ) ;
2010-05-12 01:44:00 +08:00
if ( ! isGZ )
{
2012-05-28 23:38:58 +08:00
if ( ! mem )
{
fseek ( fs - > file , 0 , SEEK_END ) ;
buf_size = ftell ( fs - > file ) ;
}
else
buf_size = fs - > strbufsize ;
buf_size = MIN ( buf_size , ( size_t ) ( 1 < < 20 ) ) ;
buf_size = MAX ( buf_size , ( size_t ) ( CV_FS_MAX_LEN * 2 + 1024 ) ) ;
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}
icvRewind ( fs ) ;
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fs - > strbufpos = bufOffset ;
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fs - > str_hash = cvCreateMap ( 0 , sizeof ( CvStringHash ) ,
sizeof ( CvStringHashNode ) , fs - > memstorage , 256 ) ;
fs - > roots = cvCreateSeq ( 0 , sizeof ( CvSeq ) ,
sizeof ( CvFileNode ) , fs - > memstorage ) ;
fs - > buffer = fs - > buffer_start = ( char * ) cvAlloc ( buf_size + 256 ) ;
fs - > buffer_end = fs - > buffer_start + buf_size ;
fs - > buffer [ 0 ] = ' \n ' ;
fs - > buffer [ 1 ] = ' \0 ' ;
//mode = cvGetErrMode();
//cvSetErrMode( CV_ErrModeSilent );
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try
{
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switch ( fs - > fmt )
{
case CV_STORAGE_FORMAT_XML : { icvXMLParse ( fs ) ; break ; }
case CV_STORAGE_FORMAT_YAML : { icvYMLParse ( fs ) ; break ; }
case CV_STORAGE_FORMAT_JSON : { icvJSONParse ( fs ) ; break ; }
default : break ;
}
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}
catch ( . . . )
{
cvReleaseFileStorage ( & fs ) ;
throw ;
}
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//cvSetErrMode( mode );
// release resources that we do not need anymore
cvFree ( & fs - > buffer_start ) ;
fs - > buffer = fs - > buffer_end = 0 ;
}
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fs - > is_opened = true ;
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_exit_ :
if ( fs )
{
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if ( cvGetErrStatus ( ) < 0 | | ( ! fs - > file & & ! fs - > gzfile & & ! fs - > outbuf & & ! fs - > strbuf ) )
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{
cvReleaseFileStorage ( & fs ) ;
}
else if ( ! fs - > write_mode )
{
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icvCloseFile ( fs ) ;
// we close the file since it's not needed anymore. But icvCloseFile() resets is_opened,
// which may be misleading. Since we restore the value of is_opened.
fs - > is_opened = true ;
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}
}
return fs ;
}
CV_IMPL void
cvStartWriteStruct ( CvFileStorage * fs , const char * key , int struct_flags ,
const char * type_name , CvAttrList /*attributes*/ )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
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check_if_write_struct_is_delayed ( fs ) ;
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if ( fs - > state_of_writing_base64 = = base64 : : fs : : NotUse )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
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if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain
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& &
CV_NODE_IS_SEQ ( struct_flags )
& &
fs - > is_default_using_base64
& &
type_name = = 0
)
{
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/* Uncertain whether output Base64 data */
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make_write_struct_delayed ( fs , key , struct_flags , type_name ) ;
}
else if ( type_name & & memcmp ( type_name , " binary " , 6 ) = = 0 )
{
/* Must output Base64 data */
if ( ! CV_NODE_IS_SEQ ( struct_flags ) )
CV_Error ( CV_StsBadArg , " must set 'struct_flags |= CV_NODE_SEQ' if using Base64. " ) ;
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else if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
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CV_Error ( CV_StsError , " function \' cvStartWriteStruct \' calls cannot be nested if using Base64. " ) ;
fs - > start_write_struct ( fs , key , struct_flags , type_name ) ;
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if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
switch_to_Base64_state ( fs , base64 : : fs : : InUse ) ;
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}
else
{
/* Won't output Base64 data */
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if ( fs - > state_of_writing_base64 = = base64 : : fs : : InUse )
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CV_Error ( CV_StsError , " At the end of the output Base64, `cvEndWriteStruct` is needed. " ) ;
fs - > start_write_struct ( fs , key , struct_flags , type_name ) ;
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if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
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}
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}
CV_IMPL void
cvEndWriteStruct ( CvFileStorage * fs )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
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check_if_write_struct_is_delayed ( fs ) ;
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if ( fs - > state_of_writing_base64 ! = base64 : : fs : : Uncertain )
switch_to_Base64_state ( fs , base64 : : fs : : Uncertain ) ;
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fs - > end_write_struct ( fs ) ;
}
CV_IMPL void
cvWriteInt ( CvFileStorage * fs , const char * key , int value )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
fs - > write_int ( fs , key , value ) ;
}
CV_IMPL void
cvWriteReal ( CvFileStorage * fs , const char * key , double value )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
fs - > write_real ( fs , key , value ) ;
}
CV_IMPL void
cvWriteString ( CvFileStorage * fs , const char * key , const char * value , int quote )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
fs - > write_string ( fs , key , value , quote ) ;
}
CV_IMPL void
cvWriteComment ( CvFileStorage * fs , const char * comment , int eol_comment )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
fs - > write_comment ( fs , comment , eol_comment ) ;
}
CV_IMPL void
cvStartNextStream ( CvFileStorage * fs )
{
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
fs - > start_next_stream ( fs ) ;
}
static const char icvTypeSymbol [ ] = " ucwsifdr " ;
# define CV_FS_MAX_FMT_PAIRS 128
static char *
icvEncodeFormat ( int elem_type , char * dt )
{
sprintf ( dt , " %d%c " , CV_MAT_CN ( elem_type ) , icvTypeSymbol [ CV_MAT_DEPTH ( elem_type ) ] ) ;
return dt + ( dt [ 2 ] = = ' \0 ' & & dt [ 0 ] = = ' 1 ' ) ;
}
static int
icvDecodeFormat ( const char * dt , int * fmt_pairs , int max_len )
{
int fmt_pair_count = 0 ;
int i = 0 , k = 0 , len = dt ? ( int ) strlen ( dt ) : 0 ;
if ( ! dt | | ! len )
return 0 ;
assert ( fmt_pairs ! = 0 & & max_len > 0 ) ;
fmt_pairs [ 0 ] = 0 ;
max_len * = 2 ;
for ( ; k < len ; k + + )
{
char c = dt [ k ] ;
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if ( cv_isdigit ( c ) )
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{
int count = c - ' 0 ' ;
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if ( cv_isdigit ( dt [ k + 1 ] ) )
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{
char * endptr = 0 ;
count = ( int ) strtol ( dt + k , & endptr , 10 ) ;
k = ( int ) ( endptr - dt ) - 1 ;
}
if ( count < = 0 )
CV_Error ( CV_StsBadArg , " Invalid data type specification " ) ;
fmt_pairs [ i ] = count ;
}
else
{
const char * pos = strchr ( icvTypeSymbol , c ) ;
if ( ! pos )
CV_Error ( CV_StsBadArg , " Invalid data type specification " ) ;
if ( fmt_pairs [ i ] = = 0 )
fmt_pairs [ i ] = 1 ;
fmt_pairs [ i + 1 ] = ( int ) ( pos - icvTypeSymbol ) ;
if ( i > 0 & & fmt_pairs [ i + 1 ] = = fmt_pairs [ i - 1 ] )
fmt_pairs [ i - 2 ] + = fmt_pairs [ i ] ;
else
{
i + = 2 ;
if ( i > = max_len )
CV_Error ( CV_StsBadArg , " Too long data type specification " ) ;
}
fmt_pairs [ i ] = 0 ;
}
}
fmt_pair_count = i / 2 ;
return fmt_pair_count ;
}
static int
icvCalcElemSize ( const char * dt , int initial_size )
{
int size = 0 ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS ] , i , fmt_pair_count ;
int comp_size ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
fmt_pair_count * = 2 ;
for ( i = 0 , size = initial_size ; i < fmt_pair_count ; i + = 2 )
{
comp_size = CV_ELEM_SIZE ( fmt_pairs [ i + 1 ] ) ;
size = cvAlign ( size , comp_size ) ;
size + = comp_size * fmt_pairs [ i ] ;
}
if ( initial_size = = 0 )
{
comp_size = CV_ELEM_SIZE ( fmt_pairs [ 1 ] ) ;
size = cvAlign ( size , comp_size ) ;
}
return size ;
}
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static int
icvCalcStructSize ( const char * dt , int initial_size )
{
int size = icvCalcElemSize ( dt , initial_size ) ;
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size_t elem_max_size = 0 ;
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for ( const char * type = dt ; * type ! = ' \0 ' ; type + + ) {
switch ( * type )
{
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case ' u ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( uchar ) ) ; break ; }
case ' c ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( schar ) ) ; break ; }
case ' w ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( ushort ) ) ; break ; }
case ' s ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( short ) ) ; break ; }
case ' i ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( int ) ) ; break ; }
case ' f ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( float ) ) ; break ; }
case ' d ' : { elem_max_size = std : : max ( elem_max_size , sizeof ( double ) ) ; break ; }
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default : break ;
}
}
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size = cvAlign ( size , static_cast < int > ( elem_max_size ) ) ;
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return size ;
}
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static int
icvDecodeSimpleFormat ( const char * dt )
{
int elem_type = - 1 ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS ] , fmt_pair_count ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
if ( fmt_pair_count ! = 1 | | fmt_pairs [ 0 ] > 4 )
CV_Error ( CV_StsError , " Too complex format for the matrix " ) ;
elem_type = CV_MAKETYPE ( fmt_pairs [ 1 ] , fmt_pairs [ 0 ] ) ;
return elem_type ;
}
CV_IMPL void
cvWriteRawData ( CvFileStorage * fs , const void * _data , int len , const char * dt )
{
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if ( fs - > is_default_using_base64 | |
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fs - > state_of_writing_base64 = = base64 : : fs : : InUse )
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{
base64 : : cvWriteRawDataBase64 ( fs , _data , len , dt ) ;
return ;
}
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else if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain )
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{
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switch_to_Base64_state ( fs , base64 : : fs : : NotUse ) ;
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}
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const char * data0 = ( const char * ) _data ;
int offset = 0 ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS * 2 ] , k , fmt_pair_count ;
char buf [ 256 ] = " " ;
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
if ( len < 0 )
CV_Error ( CV_StsOutOfRange , " Negative number of elements " ) ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
if ( ! len )
return ;
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if ( ! data0 )
CV_Error ( CV_StsNullPtr , " Null data pointer " ) ;
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if ( fmt_pair_count = = 1 )
{
fmt_pairs [ 0 ] * = len ;
len = 1 ;
}
for ( ; len - - ; )
{
for ( k = 0 ; k < fmt_pair_count ; k + + )
{
int i , count = fmt_pairs [ k * 2 ] ;
int elem_type = fmt_pairs [ k * 2 + 1 ] ;
int elem_size = CV_ELEM_SIZE ( elem_type ) ;
const char * data , * ptr ;
offset = cvAlign ( offset , elem_size ) ;
data = data0 + offset ;
for ( i = 0 ; i < count ; i + + )
{
switch ( elem_type )
{
case CV_8U :
ptr = icv_itoa ( * ( uchar * ) data , buf , 10 ) ;
data + + ;
break ;
case CV_8S :
ptr = icv_itoa ( * ( char * ) data , buf , 10 ) ;
data + + ;
break ;
case CV_16U :
ptr = icv_itoa ( * ( ushort * ) data , buf , 10 ) ;
data + = sizeof ( ushort ) ;
break ;
case CV_16S :
ptr = icv_itoa ( * ( short * ) data , buf , 10 ) ;
data + = sizeof ( short ) ;
break ;
case CV_32S :
ptr = icv_itoa ( * ( int * ) data , buf , 10 ) ;
data + = sizeof ( int ) ;
break ;
case CV_32F :
ptr = icvFloatToString ( buf , * ( float * ) data ) ;
data + = sizeof ( float ) ;
break ;
case CV_64F :
ptr = icvDoubleToString ( buf , * ( double * ) data ) ;
data + = sizeof ( double ) ;
break ;
case CV_USRTYPE1 : /* reference */
ptr = icv_itoa ( ( int ) * ( size_t * ) data , buf , 10 ) ;
data + = sizeof ( size_t ) ;
break ;
default :
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CV_Error ( CV_StsUnsupportedFormat , " Unsupported type " ) ;
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return ;
}
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if ( fs - > fmt = = CV_STORAGE_FORMAT_XML )
2010-05-12 01:44:00 +08:00
{
int buf_len = ( int ) strlen ( ptr ) ;
icvXMLWriteScalar ( fs , 0 , ptr , buf_len ) ;
}
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else if ( fs - > fmt = = CV_STORAGE_FORMAT_YAML )
{
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icvYMLWrite ( fs , 0 , ptr ) ;
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}
else
{
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if ( elem_type = = CV_32F | | elem_type = = CV_64F )
{
size_t buf_len = strlen ( ptr ) ;
if ( buf_len > 0 & & ptr [ buf_len - 1 ] = = ' . ' )
{
// append zero if CV_32F or CV_64F string ends with decimal place to match JSON standard
// ptr will point to buf, so can write to buf given ptr is const
buf [ buf_len ] = ' 0 ' ;
buf [ buf_len + 1 ] = ' \0 ' ;
}
}
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icvJSONWrite ( fs , 0 , ptr ) ;
}
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}
offset = ( int ) ( data - data0 ) ;
}
}
}
CV_IMPL void
cvStartReadRawData ( const CvFileStorage * fs , const CvFileNode * src , CvSeqReader * reader )
{
int node_type ;
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! src | | ! reader )
CV_Error ( CV_StsNullPtr , " Null pointer to source file node or reader " ) ;
node_type = CV_NODE_TYPE ( src - > tag ) ;
if ( node_type = = CV_NODE_INT | | node_type = = CV_NODE_REAL )
{
// emulate reading from 1-element sequence
reader - > ptr = ( schar * ) src ;
reader - > block_max = reader - > ptr + sizeof ( * src ) * 2 ;
reader - > block_min = reader - > ptr ;
reader - > seq = 0 ;
}
else if ( node_type = = CV_NODE_SEQ )
{
cvStartReadSeq ( src - > data . seq , reader , 0 ) ;
}
else if ( node_type = = CV_NODE_NONE )
{
memset ( reader , 0 , sizeof ( * reader ) ) ;
}
else
CV_Error ( CV_StsBadArg , " The file node should be a numerical scalar or a sequence " ) ;
}
CV_IMPL void
cvReadRawDataSlice ( const CvFileStorage * fs , CvSeqReader * reader ,
int len , void * _data , const char * dt )
{
char * data0 = ( char * ) _data ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS * 2 ] , k = 0 , fmt_pair_count ;
2017-04-26 22:19:26 +08:00
int i = 0 , count = 0 ;
2010-05-12 01:44:00 +08:00
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! reader | | ! data0 )
CV_Error ( CV_StsNullPtr , " Null pointer to reader or destination array " ) ;
if ( ! reader - > seq & & len ! = 1 )
CV_Error ( CV_StsBadSize , " The readed sequence is a scalar, thus len must be 1 " ) ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
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size_t step = : : icvCalcStructSize ( dt , 0 ) ;
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for ( ; ; )
{
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int offset = 0 ;
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for ( k = 0 ; k < fmt_pair_count ; k + + )
{
int elem_type = fmt_pairs [ k * 2 + 1 ] ;
int elem_size = CV_ELEM_SIZE ( elem_type ) ;
char * data ;
count = fmt_pairs [ k * 2 ] ;
offset = cvAlign ( offset , elem_size ) ;
data = data0 + offset ;
for ( i = 0 ; i < count ; i + + )
{
CvFileNode * node = ( CvFileNode * ) reader - > ptr ;
if ( CV_NODE_IS_INT ( node - > tag ) )
{
int ival = node - > data . i ;
switch ( elem_type )
{
case CV_8U :
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* ( uchar * ) data = cv : : saturate_cast < uchar > ( ival ) ;
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data + + ;
break ;
case CV_8S :
2013-03-31 17:26:21 +08:00
* ( char * ) data = cv : : saturate_cast < schar > ( ival ) ;
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data + + ;
break ;
case CV_16U :
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* ( ushort * ) data = cv : : saturate_cast < ushort > ( ival ) ;
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data + = sizeof ( ushort ) ;
break ;
case CV_16S :
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* ( short * ) data = cv : : saturate_cast < short > ( ival ) ;
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data + = sizeof ( short ) ;
break ;
case CV_32S :
* ( int * ) data = ival ;
data + = sizeof ( int ) ;
break ;
case CV_32F :
* ( float * ) data = ( float ) ival ;
data + = sizeof ( float ) ;
break ;
case CV_64F :
* ( double * ) data = ( double ) ival ;
data + = sizeof ( double ) ;
break ;
case CV_USRTYPE1 : /* reference */
* ( size_t * ) data = ival ;
data + = sizeof ( size_t ) ;
break ;
default :
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CV_Error ( CV_StsUnsupportedFormat , " Unsupported type " ) ;
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return ;
}
}
else if ( CV_NODE_IS_REAL ( node - > tag ) )
{
double fval = node - > data . f ;
int ival ;
switch ( elem_type )
{
case CV_8U :
ival = cvRound ( fval ) ;
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* ( uchar * ) data = cv : : saturate_cast < uchar > ( ival ) ;
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data + + ;
break ;
case CV_8S :
ival = cvRound ( fval ) ;
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* ( char * ) data = cv : : saturate_cast < schar > ( ival ) ;
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data + + ;
break ;
case CV_16U :
ival = cvRound ( fval ) ;
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* ( ushort * ) data = cv : : saturate_cast < ushort > ( ival ) ;
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data + = sizeof ( ushort ) ;
break ;
case CV_16S :
ival = cvRound ( fval ) ;
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* ( short * ) data = cv : : saturate_cast < short > ( ival ) ;
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data + = sizeof ( short ) ;
break ;
case CV_32S :
ival = cvRound ( fval ) ;
* ( int * ) data = ival ;
data + = sizeof ( int ) ;
break ;
case CV_32F :
* ( float * ) data = ( float ) fval ;
data + = sizeof ( float ) ;
break ;
case CV_64F :
* ( double * ) data = fval ;
data + = sizeof ( double ) ;
break ;
case CV_USRTYPE1 : /* reference */
ival = cvRound ( fval ) ;
* ( size_t * ) data = ival ;
data + = sizeof ( size_t ) ;
break ;
default :
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CV_Error ( CV_StsUnsupportedFormat , " Unsupported type " ) ;
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return ;
}
}
else
CV_Error ( CV_StsError ,
" The sequence element is not a numerical scalar " ) ;
CV_NEXT_SEQ_ELEM ( sizeof ( CvFileNode ) , * reader ) ;
if ( ! - - len )
goto end_loop ;
}
offset = ( int ) ( data - data0 ) ;
}
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data0 + = step ;
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}
end_loop :
if ( i ! = count - 1 | | k ! = fmt_pair_count - 1 )
CV_Error ( CV_StsBadSize ,
" The sequence slice does not fit an integer number of records " ) ;
if ( ! reader - > seq )
reader - > ptr - = sizeof ( CvFileNode ) ;
}
CV_IMPL void
cvReadRawData ( const CvFileStorage * fs , const CvFileNode * src ,
void * data , const char * dt )
{
CvSeqReader reader ;
if ( ! src | | ! data )
CV_Error ( CV_StsNullPtr , " Null pointers to source file node or destination array " ) ;
cvStartReadRawData ( fs , src , & reader ) ;
cvReadRawDataSlice ( fs , & reader , CV_NODE_IS_SEQ ( src - > tag ) ?
src - > data . seq - > total : 1 , data , dt ) ;
}
static void
icvWriteFileNode ( CvFileStorage * fs , const char * name , const CvFileNode * node ) ;
static void
icvWriteCollection ( CvFileStorage * fs , const CvFileNode * node )
{
int i , total = node - > data . seq - > total ;
int elem_size = node - > data . seq - > elem_size ;
int is_map = CV_NODE_IS_MAP ( node - > tag ) ;
CvSeqReader reader ;
cvStartReadSeq ( node - > data . seq , & reader , 0 ) ;
for ( i = 0 ; i < total ; i + + )
{
CvFileMapNode * elem = ( CvFileMapNode * ) reader . ptr ;
if ( ! is_map | | CV_IS_SET_ELEM ( elem ) )
{
const char * name = is_map ? elem - > key - > str . ptr : 0 ;
icvWriteFileNode ( fs , name , & elem - > value ) ;
}
CV_NEXT_SEQ_ELEM ( elem_size , reader ) ;
}
}
static void
icvWriteFileNode ( CvFileStorage * fs , const char * name , const CvFileNode * node )
{
switch ( CV_NODE_TYPE ( node - > tag ) )
{
case CV_NODE_INT :
fs - > write_int ( fs , name , node - > data . i ) ;
break ;
case CV_NODE_REAL :
fs - > write_real ( fs , name , node - > data . f ) ;
break ;
case CV_NODE_STR :
fs - > write_string ( fs , name , node - > data . str . ptr , 0 ) ;
break ;
case CV_NODE_SEQ :
case CV_NODE_MAP :
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cvStartWriteStruct ( fs , name , CV_NODE_TYPE ( node - > tag ) +
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( CV_NODE_SEQ_IS_SIMPLE ( node - > data . seq ) ? CV_NODE_FLOW : 0 ) ,
node - > info ? node - > info - > type_name : 0 ) ;
icvWriteCollection ( fs , node ) ;
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cvEndWriteStruct ( fs ) ;
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break ;
case CV_NODE_NONE :
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cvStartWriteStruct ( fs , name , CV_NODE_SEQ , 0 ) ;
cvEndWriteStruct ( fs ) ;
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break ;
default :
CV_Error ( CV_StsBadFlag , " Unknown type of file node " ) ;
}
}
CV_IMPL void
cvWriteFileNode ( CvFileStorage * fs , const char * new_node_name ,
const CvFileNode * node , int embed )
{
CvFileStorage * dst = 0 ;
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
if ( ! node )
return ;
if ( CV_NODE_IS_COLLECTION ( node - > tag ) & & embed )
{
icvWriteCollection ( fs , node ) ;
}
else
{
icvWriteFileNode ( fs , new_node_name , node ) ;
}
/*
int i , stream_count ;
stream_count = fs - > roots - > total ;
for ( i = 0 ; i < stream_count ; i + + )
{
CvFileNode * node = ( CvFileNode * ) cvGetSeqElem ( fs - > roots , i , 0 ) ;
icvDumpCollection ( dst , node ) ;
if ( i < stream_count - 1 )
dst - > start_next_stream ( dst ) ;
} */
cvReleaseFileStorage ( & dst ) ;
}
CV_IMPL const char *
cvGetFileNodeName ( const CvFileNode * file_node )
{
return file_node & & CV_NODE_HAS_NAME ( file_node - > tag ) ?
( ( CvFileMapNode * ) file_node ) - > key - > str . ptr : 0 ;
}
/****************************************************************************************\
* Reading / Writing etc . for standard types *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*#define CV_TYPE_NAME_MAT "opencv-matrix"
# define CV_TYPE_NAME_MATND "opencv-nd-matrix"
# define CV_TYPE_NAME_SPARSE_MAT "opencv-sparse-matrix"
# define CV_TYPE_NAME_IMAGE "opencv-image"
# define CV_TYPE_NAME_SEQ "opencv-sequence"
# define CV_TYPE_NAME_SEQ_TREE "opencv-sequence-tree"
# define CV_TYPE_NAME_GRAPH "opencv-graph"* /
/******************************* CvMat ******************************/
static int
icvIsMat ( const void * ptr )
{
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return CV_IS_MAT_HDR_Z ( ptr ) ;
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}
static void
icvWriteMat ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList /*attr*/ )
{
const CvMat * mat = ( const CvMat * ) struct_ptr ;
char dt [ 16 ] ;
CvSize size ;
int y ;
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assert ( CV_IS_MAT_HDR_Z ( mat ) ) ;
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cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_MAT ) ;
cvWriteInt ( fs , " rows " , mat - > rows ) ;
cvWriteInt ( fs , " cols " , mat - > cols ) ;
cvWriteString ( fs , " dt " , icvEncodeFormat ( CV_MAT_TYPE ( mat - > type ) , dt ) , 0 ) ;
cvStartWriteStruct ( fs , " data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
size = cvGetSize ( mat ) ;
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if ( size . height > 0 & & size . width > 0 & & mat - > data . ptr )
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{
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if ( CV_IS_MAT_CONT ( mat - > type ) )
{
size . width * = size . height ;
size . height = 1 ;
}
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for ( y = 0 ; y < size . height ; y + + )
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cvWriteRawData ( fs , mat - > data . ptr + ( size_t ) y * mat - > step , size . width , dt ) ;
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}
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cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
}
static int
icvFileNodeSeqLen ( CvFileNode * node )
{
return CV_NODE_IS_COLLECTION ( node - > tag ) ? node - > data . seq - > total :
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CV_NODE_TYPE ( node - > tag ) ! = CV_NODE_NONE ;
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}
static void *
icvReadMat ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
CvMat * mat ;
const char * dt ;
CvFileNode * data ;
int rows , cols , elem_type ;
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rows = cvReadIntByName ( fs , node , " rows " , - 1 ) ;
cols = cvReadIntByName ( fs , node , " cols " , - 1 ) ;
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dt = cvReadStringByName ( fs , node , " dt " , 0 ) ;
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if ( rows < 0 | | cols < 0 | | ! dt )
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CV_Error ( CV_StsError , " Some of essential matrix attributes are absent " ) ;
elem_type = icvDecodeSimpleFormat ( dt ) ;
data = cvGetFileNodeByName ( fs , node , " data " ) ;
if ( ! data )
CV_Error ( CV_StsError , " The matrix data is not found in file storage " ) ;
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int nelems = icvFileNodeSeqLen ( data ) ;
if ( nelems > 0 & & nelems ! = rows * cols * CV_MAT_CN ( elem_type ) )
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CV_Error ( CV_StsUnmatchedSizes ,
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" The matrix size does not match to the number of stored elements " ) ;
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if ( nelems > 0 )
{
mat = cvCreateMat ( rows , cols , elem_type ) ;
cvReadRawData ( fs , data , mat - > data . ptr , dt ) ;
}
else
mat = cvCreateMatHeader ( rows , cols , elem_type ) ;
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ptr = mat ;
return ptr ;
}
/******************************* CvMatND ******************************/
static int
icvIsMatND ( const void * ptr )
{
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return CV_IS_MATND_HDR ( ptr ) ;
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}
static void
icvWriteMatND ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList /*attr*/ )
{
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CvMatND * mat = ( CvMatND * ) struct_ptr ;
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CvMatND stub ;
CvNArrayIterator iterator ;
int dims , sizes [ CV_MAX_DIM ] ;
char dt [ 16 ] ;
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assert ( CV_IS_MATND_HDR ( mat ) ) ;
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cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_MATND ) ;
dims = cvGetDims ( mat , sizes ) ;
cvStartWriteStruct ( fs , " sizes " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
cvWriteRawData ( fs , sizes , dims , " i " ) ;
cvEndWriteStruct ( fs ) ;
cvWriteString ( fs , " dt " , icvEncodeFormat ( cvGetElemType ( mat ) , dt ) , 0 ) ;
cvStartWriteStruct ( fs , " data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
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if ( mat - > dim [ 0 ] . size > 0 & & mat - > data . ptr )
{
cvInitNArrayIterator ( 1 , ( CvArr * * ) & mat , 0 , & stub , & iterator ) ;
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do
cvWriteRawData ( fs , iterator . ptr [ 0 ] , iterator . size . width , dt ) ;
while ( cvNextNArraySlice ( & iterator ) ) ;
}
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cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
}
static void *
icvReadMatND ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
CvMatND * mat ;
const char * dt ;
CvFileNode * data ;
CvFileNode * sizes_node ;
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int sizes [ CV_MAX_DIM ] = { 0 } , dims , elem_type ;
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int i , total_size ;
sizes_node = cvGetFileNodeByName ( fs , node , " sizes " ) ;
dt = cvReadStringByName ( fs , node , " dt " , 0 ) ;
if ( ! sizes_node | | ! dt )
CV_Error ( CV_StsError , " Some of essential matrix attributes are absent " ) ;
dims = CV_NODE_IS_SEQ ( sizes_node - > tag ) ? sizes_node - > data . seq - > total :
CV_NODE_IS_INT ( sizes_node - > tag ) ? 1 : - 1 ;
if ( dims < = 0 | | dims > CV_MAX_DIM )
CV_Error ( CV_StsParseError , " Could not determine the matrix dimensionality " ) ;
cvReadRawData ( fs , sizes_node , sizes , " i " ) ;
elem_type = icvDecodeSimpleFormat ( dt ) ;
data = cvGetFileNodeByName ( fs , node , " data " ) ;
if ( ! data )
CV_Error ( CV_StsError , " The matrix data is not found in file storage " ) ;
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for ( total_size = CV_MAT_CN ( elem_type ) , i = 0 ; i < dims ; i + + )
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{
CV_Assert ( sizes [ i ] ) ;
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total_size * = sizes [ i ] ;
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}
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int nelems = icvFileNodeSeqLen ( data ) ;
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if ( nelems > 0 & & nelems ! = total_size )
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CV_Error ( CV_StsUnmatchedSizes ,
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" The matrix size does not match to the number of stored elements " ) ;
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if ( nelems > 0 )
{
mat = cvCreateMatND ( dims , sizes , elem_type ) ;
cvReadRawData ( fs , data , mat - > data . ptr , dt ) ;
}
else
mat = cvCreateMatNDHeader ( dims , sizes , elem_type ) ;
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ptr = mat ;
return ptr ;
}
/******************************* CvSparseMat ******************************/
static int
icvIsSparseMat ( const void * ptr )
{
return CV_IS_SPARSE_MAT ( ptr ) ;
}
static int
icvSortIdxCmpFunc ( const void * _a , const void * _b , void * userdata )
{
int i , dims = * ( int * ) userdata ;
const int * a = * ( const int * * ) _a ;
const int * b = * ( const int * * ) _b ;
for ( i = 0 ; i < dims ; i + + )
{
int delta = a [ i ] - b [ i ] ;
if ( delta )
return delta ;
}
return 0 ;
}
static void
icvWriteSparseMat ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList /*attr*/ )
{
CvMemStorage * memstorage = 0 ;
const CvSparseMat * mat = ( const CvSparseMat * ) struct_ptr ;
CvSparseMatIterator iterator ;
CvSparseNode * node ;
CvSeq * elements ;
CvSeqReader reader ;
int i , dims ;
int * prev_idx = 0 ;
char dt [ 16 ] ;
assert ( CV_IS_SPARSE_MAT ( mat ) ) ;
memstorage = cvCreateMemStorage ( ) ;
cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_SPARSE_MAT ) ;
dims = cvGetDims ( mat , 0 ) ;
cvStartWriteStruct ( fs , " sizes " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
cvWriteRawData ( fs , mat - > size , dims , " i " ) ;
cvEndWriteStruct ( fs ) ;
cvWriteString ( fs , " dt " , icvEncodeFormat ( CV_MAT_TYPE ( mat - > type ) , dt ) , 0 ) ;
cvStartWriteStruct ( fs , " data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
elements = cvCreateSeq ( CV_SEQ_ELTYPE_PTR , sizeof ( CvSeq ) , sizeof ( int * ) , memstorage ) ;
node = cvInitSparseMatIterator ( mat , & iterator ) ;
while ( node )
{
int * idx = CV_NODE_IDX ( mat , node ) ;
cvSeqPush ( elements , & idx ) ;
node = cvGetNextSparseNode ( & iterator ) ;
}
cvSeqSort ( elements , icvSortIdxCmpFunc , & dims ) ;
cvStartReadSeq ( elements , & reader , 0 ) ;
for ( i = 0 ; i < elements - > total ; i + + )
{
int * idx ;
void * val ;
int k = 0 ;
CV_READ_SEQ_ELEM ( idx , reader ) ;
if ( i > 0 )
{
for ( ; idx [ k ] = = prev_idx [ k ] ; k + + )
assert ( k < dims ) ;
if ( k < dims - 1 )
fs - > write_int ( fs , 0 , k - dims + 1 ) ;
}
for ( ; k < dims ; k + + )
fs - > write_int ( fs , 0 , idx [ k ] ) ;
prev_idx = idx ;
node = ( CvSparseNode * ) ( ( uchar * ) idx - mat - > idxoffset ) ;
val = CV_NODE_VAL ( mat , node ) ;
cvWriteRawData ( fs , val , 1 , dt ) ;
}
cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
cvReleaseMemStorage ( & memstorage ) ;
}
static void *
icvReadSparseMat ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
CvSparseMat * mat ;
const char * dt ;
CvFileNode * data ;
CvFileNode * sizes_node ;
CvSeqReader reader ;
CvSeq * elements ;
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int sizes [ CV_MAX_DIM_HEAP ] , dims , elem_type , cn ;
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int i ;
sizes_node = cvGetFileNodeByName ( fs , node , " sizes " ) ;
dt = cvReadStringByName ( fs , node , " dt " , 0 ) ;
if ( ! sizes_node | | ! dt )
CV_Error ( CV_StsError , " Some of essential matrix attributes are absent " ) ;
dims = CV_NODE_IS_SEQ ( sizes_node - > tag ) ? sizes_node - > data . seq - > total :
CV_NODE_IS_INT ( sizes_node - > tag ) ? 1 : - 1 ;
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if ( dims < = 0 | | dims > CV_MAX_DIM )
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CV_Error ( CV_StsParseError , " Could not determine sparse matrix dimensionality " ) ;
cvReadRawData ( fs , sizes_node , sizes , " i " ) ;
elem_type = icvDecodeSimpleFormat ( dt ) ;
data = cvGetFileNodeByName ( fs , node , " data " ) ;
if ( ! data | | ! CV_NODE_IS_SEQ ( data - > tag ) )
CV_Error ( CV_StsError , " The matrix data is not found in file storage " ) ;
mat = cvCreateSparseMat ( dims , sizes , elem_type ) ;
cn = CV_MAT_CN ( elem_type ) ;
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int idx [ CV_MAX_DIM_HEAP ] ;
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elements = data - > data . seq ;
cvStartReadRawData ( fs , data , & reader ) ;
for ( i = 0 ; i < elements - > total ; )
{
CvFileNode * elem = ( CvFileNode * ) reader . ptr ;
uchar * val ;
int k ;
if ( ! CV_NODE_IS_INT ( elem - > tag ) )
CV_Error ( CV_StsParseError , " Sparse matrix data is corrupted " ) ;
k = elem - > data . i ;
if ( i > 0 & & k > = 0 )
idx [ dims - 1 ] = k ;
else
{
if ( i > 0 )
k = dims + k - 1 ;
else
idx [ 0 ] = k , k = 1 ;
for ( ; k < dims ; k + + )
{
CV_NEXT_SEQ_ELEM ( elements - > elem_size , reader ) ;
i + + ;
elem = ( CvFileNode * ) reader . ptr ;
if ( ! CV_NODE_IS_INT ( elem - > tag ) | | elem - > data . i < 0 )
CV_Error ( CV_StsParseError , " Sparse matrix data is corrupted " ) ;
idx [ k ] = elem - > data . i ;
}
}
CV_NEXT_SEQ_ELEM ( elements - > elem_size , reader ) ;
i + + ;
val = cvPtrND ( mat , idx , 0 , 1 , 0 ) ;
cvReadRawDataSlice ( fs , & reader , cn , val , dt ) ;
i + = cn ;
}
ptr = mat ;
return ptr ;
}
/******************************* IplImage ******************************/
static int
icvIsImage ( const void * ptr )
{
return CV_IS_IMAGE_HDR ( ptr ) ;
}
static void
icvWriteImage ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList /*attr*/ )
{
const IplImage * image = ( const IplImage * ) struct_ptr ;
char dt_buf [ 16 ] , * dt ;
CvSize size ;
int y , depth ;
assert ( CV_IS_IMAGE ( image ) ) ;
if ( image - > dataOrder = = IPL_DATA_ORDER_PLANE )
CV_Error ( CV_StsUnsupportedFormat ,
" Images with planar data layout are not supported " ) ;
cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_IMAGE ) ;
cvWriteInt ( fs , " width " , image - > width ) ;
cvWriteInt ( fs , " height " , image - > height ) ;
cvWriteString ( fs , " origin " , image - > origin = = IPL_ORIGIN_TL
? " top-left " : " bottom-left " , 0 ) ;
cvWriteString ( fs , " layout " , image - > dataOrder = = IPL_DATA_ORDER_PLANE
? " planar " : " interleaved " , 0 ) ;
if ( image - > roi )
{
cvStartWriteStruct ( fs , " roi " , CV_NODE_MAP + CV_NODE_FLOW ) ;
cvWriteInt ( fs , " x " , image - > roi - > xOffset ) ;
cvWriteInt ( fs , " y " , image - > roi - > yOffset ) ;
cvWriteInt ( fs , " width " , image - > roi - > width ) ;
cvWriteInt ( fs , " height " , image - > roi - > height ) ;
cvWriteInt ( fs , " coi " , image - > roi - > coi ) ;
cvEndWriteStruct ( fs ) ;
}
depth = IPL2CV_DEPTH ( image - > depth ) ;
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CV_Assert ( depth < 9 ) ;
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sprintf ( dt_buf , " %d%c " , image - > nChannels , icvTypeSymbol [ depth ] ) ;
dt = dt_buf + ( dt_buf [ 2 ] = = ' \0 ' & & dt_buf [ 0 ] = = ' 1 ' ) ;
cvWriteString ( fs , " dt " , dt , 0 ) ;
size = cvSize ( image - > width , image - > height ) ;
if ( size . width * image - > nChannels * CV_ELEM_SIZE ( depth ) = = image - > widthStep )
{
size . width * = size . height ;
size . height = 1 ;
}
cvStartWriteStruct ( fs , " data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
for ( y = 0 ; y < size . height ; y + + )
cvWriteRawData ( fs , image - > imageData + y * image - > widthStep , size . width , dt ) ;
cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
}
static void *
icvReadImage ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
IplImage * image ;
const char * dt ;
CvFileNode * data ;
CvFileNode * roi_node ;
CvSeqReader reader ;
CvRect roi ;
int y , width , height , elem_type , coi , depth ;
const char * origin , * data_order ;
width = cvReadIntByName ( fs , node , " width " , 0 ) ;
height = cvReadIntByName ( fs , node , " height " , 0 ) ;
dt = cvReadStringByName ( fs , node , " dt " , 0 ) ;
origin = cvReadStringByName ( fs , node , " origin " , 0 ) ;
if ( width = = 0 | | height = = 0 | | dt = = 0 | | origin = = 0 )
CV_Error ( CV_StsError , " Some of essential image attributes are absent " ) ;
elem_type = icvDecodeSimpleFormat ( dt ) ;
data_order = cvReadStringByName ( fs , node , " layout " , " interleaved " ) ;
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if ( ! data_order | | strcmp ( data_order , " interleaved " ) ! = 0 )
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CV_Error ( CV_StsError , " Only interleaved images can be read " ) ;
data = cvGetFileNodeByName ( fs , node , " data " ) ;
if ( ! data )
CV_Error ( CV_StsError , " The image data is not found in file storage " ) ;
if ( icvFileNodeSeqLen ( data ) ! = width * height * CV_MAT_CN ( elem_type ) )
CV_Error ( CV_StsUnmatchedSizes ,
" The matrix size does not match to the number of stored elements " ) ;
depth = cvIplDepth ( elem_type ) ;
image = cvCreateImage ( cvSize ( width , height ) , depth , CV_MAT_CN ( elem_type ) ) ;
roi_node = cvGetFileNodeByName ( fs , node , " roi " ) ;
if ( roi_node )
{
roi . x = cvReadIntByName ( fs , roi_node , " x " , 0 ) ;
roi . y = cvReadIntByName ( fs , roi_node , " y " , 0 ) ;
roi . width = cvReadIntByName ( fs , roi_node , " width " , 0 ) ;
roi . height = cvReadIntByName ( fs , roi_node , " height " , 0 ) ;
coi = cvReadIntByName ( fs , roi_node , " coi " , 0 ) ;
cvSetImageROI ( image , roi ) ;
cvSetImageCOI ( image , coi ) ;
}
if ( width * CV_ELEM_SIZE ( elem_type ) = = image - > widthStep )
{
width * = height ;
height = 1 ;
}
width * = CV_MAT_CN ( elem_type ) ;
cvStartReadRawData ( fs , data , & reader ) ;
for ( y = 0 ; y < height ; y + + )
{
cvReadRawDataSlice ( fs , & reader , width ,
image - > imageData + y * image - > widthStep , dt ) ;
}
ptr = image ;
return ptr ;
}
/******************************* CvSeq ******************************/
static int
icvIsSeq ( const void * ptr )
{
return CV_IS_SEQ ( ptr ) ;
}
static void
icvReleaseSeq ( void * * ptr )
{
if ( ! ptr )
CV_Error ( CV_StsNullPtr , " NULL double pointer " ) ;
* ptr = 0 ; // it's impossible now to release seq, so just clear the pointer
}
static void *
icvCloneSeq ( const void * ptr )
{
return cvSeqSlice ( ( CvSeq * ) ptr , CV_WHOLE_SEQ ,
0 /* use the same storage as for the original sequence */ , 1 ) ;
}
static void
icvWriteHeaderData ( CvFileStorage * fs , const CvSeq * seq ,
CvAttrList * attr , int initial_header_size )
{
char header_dt_buf [ 128 ] ;
const char * header_dt = cvAttrValue ( attr , " header_dt " ) ;
if ( header_dt )
{
int dt_header_size ;
dt_header_size = icvCalcElemSize ( header_dt , initial_header_size ) ;
if ( dt_header_size > seq - > header_size )
CV_Error ( CV_StsUnmatchedSizes ,
" The size of header calculated from \" header_dt \" is greater than header_size " ) ;
}
else if ( seq - > header_size > initial_header_size )
{
if ( CV_IS_SEQ ( seq ) & & CV_IS_SEQ_POINT_SET ( seq ) & &
seq - > header_size = = sizeof ( CvPoint2DSeq ) & &
seq - > elem_size = = sizeof ( int ) * 2 )
{
CvPoint2DSeq * point_seq = ( CvPoint2DSeq * ) seq ;
cvStartWriteStruct ( fs , " rect " , CV_NODE_MAP + CV_NODE_FLOW ) ;
cvWriteInt ( fs , " x " , point_seq - > rect . x ) ;
cvWriteInt ( fs , " y " , point_seq - > rect . y ) ;
cvWriteInt ( fs , " width " , point_seq - > rect . width ) ;
cvWriteInt ( fs , " height " , point_seq - > rect . height ) ;
cvEndWriteStruct ( fs ) ;
cvWriteInt ( fs , " color " , point_seq - > color ) ;
}
else if ( CV_IS_SEQ ( seq ) & & CV_IS_SEQ_CHAIN ( seq ) & &
CV_MAT_TYPE ( seq - > flags ) = = CV_8UC1 )
{
CvChain * chain = ( CvChain * ) seq ;
cvStartWriteStruct ( fs , " origin " , CV_NODE_MAP + CV_NODE_FLOW ) ;
cvWriteInt ( fs , " x " , chain - > origin . x ) ;
cvWriteInt ( fs , " y " , chain - > origin . y ) ;
cvEndWriteStruct ( fs ) ;
}
else
{
unsigned extra_size = seq - > header_size - initial_header_size ;
// a heuristic to provide nice defaults for sequences of int's & float's
if ( extra_size % sizeof ( int ) = = 0 )
sprintf ( header_dt_buf , " %ui " , ( unsigned ) ( extra_size / sizeof ( int ) ) ) ;
else
sprintf ( header_dt_buf , " %uu " , extra_size ) ;
header_dt = header_dt_buf ;
}
}
if ( header_dt )
{
cvWriteString ( fs , " header_dt " , header_dt , 0 ) ;
cvStartWriteStruct ( fs , " header_user_data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
cvWriteRawData ( fs , ( uchar * ) seq + sizeof ( CvSeq ) , 1 , header_dt ) ;
cvEndWriteStruct ( fs ) ;
}
}
static char *
icvGetFormat ( const CvSeq * seq , const char * dt_key , CvAttrList * attr ,
int initial_elem_size , char * dt_buf )
{
char * dt = 0 ;
dt = ( char * ) cvAttrValue ( attr , dt_key ) ;
if ( dt )
{
int dt_elem_size ;
dt_elem_size = icvCalcElemSize ( dt , initial_elem_size ) ;
if ( dt_elem_size ! = seq - > elem_size )
CV_Error ( CV_StsUnmatchedSizes ,
" The size of element calculated from \" dt \" and "
" the elem_size do not match " ) ;
}
else if ( CV_MAT_TYPE ( seq - > flags ) ! = 0 | | seq - > elem_size = = 1 )
{
if ( CV_ELEM_SIZE ( seq - > flags ) ! = seq - > elem_size )
CV_Error ( CV_StsUnmatchedSizes ,
" Size of sequence element (elem_size) is inconsistent with seq->flags " ) ;
dt = icvEncodeFormat ( CV_MAT_TYPE ( seq - > flags ) , dt_buf ) ;
}
else if ( seq - > elem_size > initial_elem_size )
{
unsigned extra_elem_size = seq - > elem_size - initial_elem_size ;
// a heuristic to provide nice defaults for sequences of int's & float's
if ( extra_elem_size % sizeof ( int ) = = 0 )
sprintf ( dt_buf , " %ui " , ( unsigned ) ( extra_elem_size / sizeof ( int ) ) ) ;
else
sprintf ( dt_buf , " %uu " , extra_elem_size ) ;
dt = dt_buf ;
}
return dt ;
}
static void
icvWriteSeq ( CvFileStorage * fs , const char * name ,
const void * struct_ptr ,
CvAttrList attr , int level )
{
const CvSeq * seq = ( CvSeq * ) struct_ptr ;
CvSeqBlock * block ;
char buf [ 128 ] ;
char dt_buf [ 128 ] , * dt ;
assert ( CV_IS_SEQ ( seq ) ) ;
cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_SEQ ) ;
if ( level > = 0 )
cvWriteInt ( fs , " level " , level ) ;
dt = icvGetFormat ( seq , " dt " , & attr , 0 , dt_buf ) ;
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strcpy ( buf , " " ) ;
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if ( CV_IS_SEQ_CLOSED ( seq ) )
strcat ( buf , " closed " ) ;
if ( CV_IS_SEQ_HOLE ( seq ) )
strcat ( buf , " hole " ) ;
if ( CV_IS_SEQ_CURVE ( seq ) )
strcat ( buf , " curve " ) ;
if ( CV_SEQ_ELTYPE ( seq ) = = 0 & & seq - > elem_size ! = 1 )
strcat ( buf , " untyped " ) ;
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cvWriteString ( fs , " flags " , buf + ( buf [ 0 ] ? 1 : 0 ) , 1 ) ;
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cvWriteInt ( fs , " count " , seq - > total ) ;
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cvWriteString ( fs , " dt " , dt , 0 ) ;
icvWriteHeaderData ( fs , seq , & attr , sizeof ( CvSeq ) ) ;
cvStartWriteStruct ( fs , " data " , CV_NODE_SEQ + CV_NODE_FLOW ) ;
for ( block = seq - > first ; block ; block = block - > next )
{
cvWriteRawData ( fs , block - > data , block - > count , dt ) ;
if ( block = = seq - > first - > prev )
break ;
}
cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
}
static void
icvWriteSeqTree ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList attr )
{
const CvSeq * seq = ( CvSeq * ) struct_ptr ;
const char * recursive_value = cvAttrValue ( & attr , " recursive " ) ;
int is_recursive = recursive_value & &
strcmp ( recursive_value , " 0 " ) ! = 0 & &
strcmp ( recursive_value , " false " ) ! = 0 & &
strcmp ( recursive_value , " False " ) ! = 0 & &
strcmp ( recursive_value , " FALSE " ) ! = 0 ;
assert ( CV_IS_SEQ ( seq ) ) ;
if ( ! is_recursive )
{
icvWriteSeq ( fs , name , seq , attr , - 1 ) ;
}
else
{
CvTreeNodeIterator tree_iterator ;
cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_SEQ_TREE ) ;
cvStartWriteStruct ( fs , " sequences " , CV_NODE_SEQ ) ;
cvInitTreeNodeIterator ( & tree_iterator , seq , INT_MAX ) ;
for ( ; ; )
{
if ( ! tree_iterator . node )
break ;
icvWriteSeq ( fs , 0 , tree_iterator . node , attr , tree_iterator . level ) ;
cvNextTreeNode ( & tree_iterator ) ;
}
cvEndWriteStruct ( fs ) ;
cvEndWriteStruct ( fs ) ;
}
}
static void *
icvReadSeq ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
CvSeq * seq ;
CvSeqBlock * block ;
CvFileNode * data , * header_node , * rect_node , * origin_node ;
CvSeqReader reader ;
int total , flags ;
int elem_size , header_size = sizeof ( CvSeq ) ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS ] , i , fmt_pair_count ;
int items_per_elem = 0 ;
const char * flags_str ;
const char * header_dt ;
const char * dt ;
char * endptr = 0 ;
flags_str = cvReadStringByName ( fs , node , " flags " , 0 ) ;
total = cvReadIntByName ( fs , node , " count " , - 1 ) ;
dt = cvReadStringByName ( fs , node , " dt " , 0 ) ;
if ( ! flags_str | | total = = - 1 | | ! dt )
CV_Error ( CV_StsError , " Some of essential sequence attributes are absent " ) ;
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flags = CV_SEQ_MAGIC_VAL ;
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if ( cv_isdigit ( flags_str [ 0 ] ) )
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{
const int OLD_SEQ_ELTYPE_BITS = 9 ;
const int OLD_SEQ_ELTYPE_MASK = ( 1 < < OLD_SEQ_ELTYPE_BITS ) - 1 ;
const int OLD_SEQ_KIND_BITS = 3 ;
const int OLD_SEQ_KIND_MASK = ( ( 1 < < OLD_SEQ_KIND_BITS ) - 1 ) < < OLD_SEQ_ELTYPE_BITS ;
const int OLD_SEQ_KIND_CURVE = 1 < < OLD_SEQ_ELTYPE_BITS ;
const int OLD_SEQ_FLAG_SHIFT = OLD_SEQ_KIND_BITS + OLD_SEQ_ELTYPE_BITS ;
const int OLD_SEQ_FLAG_CLOSED = 1 < < OLD_SEQ_FLAG_SHIFT ;
const int OLD_SEQ_FLAG_HOLE = 8 < < OLD_SEQ_FLAG_SHIFT ;
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int flags0 = ( int ) strtol ( flags_str , & endptr , 16 ) ;
if ( endptr = = flags_str | | ( flags0 & CV_MAGIC_MASK ) ! = CV_SEQ_MAGIC_VAL )
CV_Error ( CV_StsError , " The sequence flags are invalid " ) ;
if ( ( flags0 & OLD_SEQ_KIND_MASK ) = = OLD_SEQ_KIND_CURVE )
flags | = CV_SEQ_KIND_CURVE ;
if ( flags0 & OLD_SEQ_FLAG_CLOSED )
flags | = CV_SEQ_FLAG_CLOSED ;
if ( flags0 & OLD_SEQ_FLAG_HOLE )
flags | = CV_SEQ_FLAG_HOLE ;
flags | = flags0 & OLD_SEQ_ELTYPE_MASK ;
}
else
{
if ( strstr ( flags_str , " curve " ) )
flags | = CV_SEQ_KIND_CURVE ;
if ( strstr ( flags_str , " closed " ) )
flags | = CV_SEQ_FLAG_CLOSED ;
if ( strstr ( flags_str , " hole " ) )
flags | = CV_SEQ_FLAG_HOLE ;
if ( ! strstr ( flags_str , " untyped " ) )
{
try
{
flags | = icvDecodeSimpleFormat ( dt ) ;
}
catch ( . . . )
{
}
}
}
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header_dt = cvReadStringByName ( fs , node , " header_dt " , 0 ) ;
header_node = cvGetFileNodeByName ( fs , node , " header_user_data " ) ;
if ( ( header_dt ! = 0 ) ^ ( header_node ! = 0 ) )
CV_Error ( CV_StsError ,
" One of \" header_dt \" and \" header_user_data \" is there, while the other is not " ) ;
rect_node = cvGetFileNodeByName ( fs , node , " rect " ) ;
origin_node = cvGetFileNodeByName ( fs , node , " origin " ) ;
if ( ( header_node ! = 0 ) + ( rect_node ! = 0 ) + ( origin_node ! = 0 ) > 1 )
CV_Error ( CV_StsError , " Only one of \" header_user_data \" , \" rect \" and \" origin \" tags may occur " ) ;
if ( header_dt )
{
header_size = icvCalcElemSize ( header_dt , header_size ) ;
}
else if ( rect_node )
header_size = sizeof ( CvPoint2DSeq ) ;
else if ( origin_node )
header_size = sizeof ( CvChain ) ;
elem_size = icvCalcElemSize ( dt , 0 ) ;
seq = cvCreateSeq ( flags , header_size , elem_size , fs - > dststorage ) ;
if ( header_node )
{
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CV_Assert ( header_dt ) ;
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cvReadRawData ( fs , header_node , ( char * ) seq + sizeof ( CvSeq ) , header_dt ) ;
}
else if ( rect_node )
{
CvPoint2DSeq * point_seq = ( CvPoint2DSeq * ) seq ;
point_seq - > rect . x = cvReadIntByName ( fs , rect_node , " x " , 0 ) ;
point_seq - > rect . y = cvReadIntByName ( fs , rect_node , " y " , 0 ) ;
point_seq - > rect . width = cvReadIntByName ( fs , rect_node , " width " , 0 ) ;
point_seq - > rect . height = cvReadIntByName ( fs , rect_node , " height " , 0 ) ;
point_seq - > color = cvReadIntByName ( fs , node , " color " , 0 ) ;
}
else if ( origin_node )
{
CvChain * chain = ( CvChain * ) seq ;
chain - > origin . x = cvReadIntByName ( fs , origin_node , " x " , 0 ) ;
chain - > origin . y = cvReadIntByName ( fs , origin_node , " y " , 0 ) ;
}
cvSeqPushMulti ( seq , 0 , total , 0 ) ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
fmt_pair_count * = 2 ;
for ( i = 0 ; i < fmt_pair_count ; i + = 2 )
items_per_elem + = fmt_pairs [ i ] ;
data = cvGetFileNodeByName ( fs , node , " data " ) ;
if ( ! data )
CV_Error ( CV_StsError , " The image data is not found in file storage " ) ;
if ( icvFileNodeSeqLen ( data ) ! = total * items_per_elem )
CV_Error ( CV_StsError , " The number of stored elements does not match to \" count \" " ) ;
cvStartReadRawData ( fs , data , & reader ) ;
for ( block = seq - > first ; block ; block = block - > next )
{
int delta = block - > count * items_per_elem ;
cvReadRawDataSlice ( fs , & reader , delta , block - > data , dt ) ;
if ( block = = seq - > first - > prev )
break ;
}
ptr = seq ;
return ptr ;
}
static void *
icvReadSeqTree ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
CvFileNode * sequences_node = cvGetFileNodeByName ( fs , node , " sequences " ) ;
CvSeq * sequences ;
CvSeq * root = 0 ;
CvSeq * parent = 0 ;
CvSeq * prev_seq = 0 ;
CvSeqReader reader ;
int i , total ;
int prev_level = 0 ;
if ( ! sequences_node | | ! CV_NODE_IS_SEQ ( sequences_node - > tag ) )
CV_Error ( CV_StsParseError ,
" opencv-sequence-tree instance should contain a field \" sequences \" that should be a sequence " ) ;
sequences = sequences_node - > data . seq ;
total = sequences - > total ;
cvStartReadSeq ( sequences , & reader , 0 ) ;
for ( i = 0 ; i < total ; i + + )
{
CvFileNode * elem = ( CvFileNode * ) reader . ptr ;
CvSeq * seq ;
int level ;
seq = ( CvSeq * ) cvRead ( fs , elem ) ;
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CV_Assert ( seq ) ;
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level = cvReadIntByName ( fs , elem , " level " , - 1 ) ;
if ( level < 0 )
CV_Error ( CV_StsParseError , " All the sequence tree nodes should contain \" level \" field " ) ;
if ( ! root )
root = seq ;
if ( level > prev_level )
{
assert ( level = = prev_level + 1 ) ;
parent = prev_seq ;
prev_seq = 0 ;
if ( parent )
parent - > v_next = seq ;
}
else if ( level < prev_level )
{
for ( ; prev_level > level ; prev_level - - )
prev_seq = prev_seq - > v_prev ;
parent = prev_seq - > v_prev ;
}
seq - > h_prev = prev_seq ;
if ( prev_seq )
prev_seq - > h_next = seq ;
seq - > v_prev = parent ;
prev_seq = seq ;
prev_level = level ;
CV_NEXT_SEQ_ELEM ( sequences - > elem_size , reader ) ;
}
ptr = root ;
return ptr ;
}
/******************************* CvGraph ******************************/
static int
icvIsGraph ( const void * ptr )
{
return CV_IS_GRAPH ( ptr ) ;
}
static void
icvReleaseGraph ( void * * ptr )
{
if ( ! ptr )
CV_Error ( CV_StsNullPtr , " NULL double pointer " ) ;
* ptr = 0 ; // it's impossible now to release graph, so just clear the pointer
}
static void *
icvCloneGraph ( const void * ptr )
{
return cvCloneGraph ( ( const CvGraph * ) ptr , 0 ) ;
}
static void
icvWriteGraph ( CvFileStorage * fs , const char * name ,
const void * struct_ptr , CvAttrList attr )
{
int * flag_buf = 0 ;
char * write_buf = 0 ;
const CvGraph * graph = ( const CvGraph * ) struct_ptr ;
CvSeqReader reader ;
char buf [ 128 ] ;
int i , k , vtx_count , edge_count ;
char vtx_dt_buf [ 128 ] , * vtx_dt ;
char edge_dt_buf [ 128 ] , * edge_dt ;
int write_buf_size ;
assert ( CV_IS_GRAPH ( graph ) ) ;
vtx_count = cvGraphGetVtxCount ( graph ) ;
edge_count = cvGraphGetEdgeCount ( graph ) ;
flag_buf = ( int * ) cvAlloc ( vtx_count * sizeof ( flag_buf [ 0 ] ) ) ;
// count vertices
cvStartReadSeq ( ( CvSeq * ) graph , & reader ) ;
for ( i = 0 , k = 0 ; i < graph - > total ; i + + )
{
if ( CV_IS_SET_ELEM ( reader . ptr ) )
{
CvGraphVtx * vtx = ( CvGraphVtx * ) reader . ptr ;
flag_buf [ k ] = vtx - > flags ;
vtx - > flags = k + + ;
}
CV_NEXT_SEQ_ELEM ( graph - > elem_size , reader ) ;
}
// write header
cvStartWriteStruct ( fs , name , CV_NODE_MAP , CV_TYPE_NAME_GRAPH ) ;
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cvWriteString ( fs , " flags " , CV_IS_GRAPH_ORIENTED ( graph ) ? " oriented " : " " , 1 ) ;
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cvWriteInt ( fs , " vertex_count " , vtx_count ) ;
vtx_dt = icvGetFormat ( ( CvSeq * ) graph , " vertex_dt " ,
& attr , sizeof ( CvGraphVtx ) , vtx_dt_buf ) ;
if ( vtx_dt )
cvWriteString ( fs , " vertex_dt " , vtx_dt , 0 ) ;
cvWriteInt ( fs , " edge_count " , edge_count ) ;
edge_dt = icvGetFormat ( ( CvSeq * ) graph - > edges , " edge_dt " ,
& attr , sizeof ( CvGraphEdge ) , buf ) ;
sprintf ( edge_dt_buf , " 2if%s " , edge_dt ? edge_dt : " " ) ;
edge_dt = edge_dt_buf ;
cvWriteString ( fs , " edge_dt " , edge_dt , 0 ) ;
icvWriteHeaderData ( fs , ( CvSeq * ) graph , & attr , sizeof ( CvGraph ) ) ;
write_buf_size = MAX ( 3 * graph - > elem_size , 1 < < 16 ) ;
write_buf_size = MAX ( 3 * graph - > edges - > elem_size , write_buf_size ) ;
write_buf = ( char * ) cvAlloc ( write_buf_size ) ;
// as vertices and edges are written in similar way,
// do it as a parametrized 2-iteration loop
for ( k = 0 ; k < 2 ; k + + )
{
const char * dt = k = = 0 ? vtx_dt : edge_dt ;
if ( dt )
{
CvSet * data = k = = 0 ? ( CvSet * ) graph : graph - > edges ;
int elem_size = data - > elem_size ;
int write_elem_size = icvCalcElemSize ( dt , 0 ) ;
char * src_ptr = write_buf ;
int write_max = write_buf_size / write_elem_size , write_count = 0 ;
// alignment of user part of the edge data following 2if
int edge_user_align = sizeof ( float ) ;
if ( k = = 1 )
{
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS ] , fmt_pair_count ;
fmt_pair_count = icvDecodeFormat ( dt , fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
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if ( fmt_pair_count > 2 & & CV_ELEM_SIZE ( fmt_pairs [ 2 * 2 + 1 ] ) > = ( int ) sizeof ( double ) )
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edge_user_align = sizeof ( double ) ;
}
cvStartWriteStruct ( fs , k = = 0 ? " vertices " : " edges " ,
CV_NODE_SEQ + CV_NODE_FLOW ) ;
cvStartReadSeq ( ( CvSeq * ) data , & reader ) ;
for ( i = 0 ; i < data - > total ; i + + )
{
if ( CV_IS_SET_ELEM ( reader . ptr ) )
{
if ( k = = 0 ) // vertices
memcpy ( src_ptr , reader . ptr + sizeof ( CvGraphVtx ) , write_elem_size ) ;
else
{
CvGraphEdge * edge = ( CvGraphEdge * ) reader . ptr ;
src_ptr = ( char * ) cvAlignPtr ( src_ptr , sizeof ( int ) ) ;
( ( int * ) src_ptr ) [ 0 ] = edge - > vtx [ 0 ] - > flags ;
( ( int * ) src_ptr ) [ 1 ] = edge - > vtx [ 1 ] - > flags ;
* ( float * ) ( src_ptr + sizeof ( int ) * 2 ) = edge - > weight ;
if ( elem_size > ( int ) sizeof ( CvGraphEdge ) )
{
char * src_ptr2 = ( char * ) cvAlignPtr ( src_ptr + 2 * sizeof ( int )
+ sizeof ( float ) , edge_user_align ) ;
memcpy ( src_ptr2 , edge + 1 , elem_size - sizeof ( CvGraphEdge ) ) ;
}
}
src_ptr + = write_elem_size ;
if ( + + write_count > = write_max )
{
cvWriteRawData ( fs , write_buf , write_count , dt ) ;
write_count = 0 ;
src_ptr = write_buf ;
}
}
CV_NEXT_SEQ_ELEM ( data - > elem_size , reader ) ;
}
if ( write_count > 0 )
cvWriteRawData ( fs , write_buf , write_count , dt ) ;
cvEndWriteStruct ( fs ) ;
}
}
cvEndWriteStruct ( fs ) ;
// final stage. restore the graph flags
cvStartReadSeq ( ( CvSeq * ) graph , & reader ) ;
vtx_count = 0 ;
for ( i = 0 ; i < graph - > total ; i + + )
{
if ( CV_IS_SET_ELEM ( reader . ptr ) )
( ( CvGraphVtx * ) reader . ptr ) - > flags = flag_buf [ vtx_count + + ] ;
CV_NEXT_SEQ_ELEM ( graph - > elem_size , reader ) ;
}
cvFree ( & write_buf ) ;
cvFree ( & flag_buf ) ;
}
static void *
icvReadGraph ( CvFileStorage * fs , CvFileNode * node )
{
void * ptr = 0 ;
char * read_buf = 0 ;
CvGraphVtx * * vtx_buf = 0 ;
CvGraph * graph ;
CvFileNode * header_node , * vtx_node , * edge_node ;
int flags , vtx_count , edge_count ;
int vtx_size = sizeof ( CvGraphVtx ) , edge_size , header_size = sizeof ( CvGraph ) ;
int src_vtx_size = 0 , src_edge_size ;
int fmt_pairs [ CV_FS_MAX_FMT_PAIRS ] , fmt_pair_count ;
int vtx_items_per_elem = 0 , edge_items_per_elem = 0 ;
int edge_user_align = sizeof ( float ) ;
int read_buf_size ;
int i , k ;
const char * flags_str ;
const char * header_dt ;
const char * vtx_dt ;
const char * edge_dt ;
char * endptr = 0 ;
flags_str = cvReadStringByName ( fs , node , " flags " , 0 ) ;
vtx_dt = cvReadStringByName ( fs , node , " vertex_dt " , 0 ) ;
edge_dt = cvReadStringByName ( fs , node , " edge_dt " , 0 ) ;
vtx_count = cvReadIntByName ( fs , node , " vertex_count " , - 1 ) ;
edge_count = cvReadIntByName ( fs , node , " edge_count " , - 1 ) ;
if ( ! flags_str | | vtx_count = = - 1 | | edge_count = = - 1 | | ! edge_dt )
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CV_Error ( CV_StsError , " Some of essential graph attributes are absent " ) ;
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flags = CV_SET_MAGIC_VAL + CV_GRAPH ;
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if ( isxdigit ( flags_str [ 0 ] ) )
{
const int OLD_SEQ_ELTYPE_BITS = 9 ;
const int OLD_SEQ_KIND_BITS = 3 ;
const int OLD_SEQ_FLAG_SHIFT = OLD_SEQ_KIND_BITS + OLD_SEQ_ELTYPE_BITS ;
const int OLD_GRAPH_FLAG_ORIENTED = 1 < < OLD_SEQ_FLAG_SHIFT ;
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int flags0 = ( int ) strtol ( flags_str , & endptr , 16 ) ;
if ( endptr = = flags_str | | ( flags0 & CV_MAGIC_MASK ) ! = CV_SET_MAGIC_VAL )
CV_Error ( CV_StsError , " The sequence flags are invalid " ) ;
if ( flags0 & OLD_GRAPH_FLAG_ORIENTED )
flags | = CV_GRAPH_FLAG_ORIENTED ;
}
else
{
if ( strstr ( flags_str , " oriented " ) )
flags | = CV_GRAPH_FLAG_ORIENTED ;
}
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header_dt = cvReadStringByName ( fs , node , " header_dt " , 0 ) ;
header_node = cvGetFileNodeByName ( fs , node , " header_user_data " ) ;
if ( ( header_dt ! = 0 ) ^ ( header_node ! = 0 ) )
CV_Error ( CV_StsError ,
" One of \" header_dt \" and \" header_user_data \" is there, while the other is not " ) ;
if ( header_dt )
header_size = icvCalcElemSize ( header_dt , header_size ) ;
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if ( vtx_dt )
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{
src_vtx_size = icvCalcElemSize ( vtx_dt , 0 ) ;
vtx_size = icvCalcElemSize ( vtx_dt , vtx_size ) ;
fmt_pair_count = icvDecodeFormat ( edge_dt ,
fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
fmt_pair_count * = 2 ;
for ( i = 0 ; i < fmt_pair_count ; i + = 2 )
vtx_items_per_elem + = fmt_pairs [ i ] ;
}
{
char dst_edge_dt_buf [ 128 ] ;
const char * dst_edge_dt = 0 ;
fmt_pair_count = icvDecodeFormat ( edge_dt ,
fmt_pairs , CV_FS_MAX_FMT_PAIRS ) ;
if ( fmt_pair_count < 2 | |
fmt_pairs [ 0 ] ! = 2 | | fmt_pairs [ 1 ] ! = CV_32S | |
fmt_pairs [ 2 ] < 1 | | fmt_pairs [ 3 ] ! = CV_32F )
CV_Error ( CV_StsBadArg ,
" Graph edges should start with 2 integers and a float " ) ;
// alignment of user part of the edge data following 2if
if ( fmt_pair_count > 2 & & CV_ELEM_SIZE ( fmt_pairs [ 5 ] ) > = ( int ) sizeof ( double ) )
edge_user_align = sizeof ( double ) ;
fmt_pair_count * = 2 ;
for ( i = 0 ; i < fmt_pair_count ; i + = 2 )
edge_items_per_elem + = fmt_pairs [ i ] ;
if ( edge_dt [ 2 ] = = ' f ' | | ( edge_dt [ 2 ] = = ' 1 ' & & edge_dt [ 3 ] = = ' f ' ) )
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dst_edge_dt = edge_dt + 3 + cv_isdigit ( edge_dt [ 2 ] ) ;
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else
{
int val = ( int ) strtol ( edge_dt + 2 , & endptr , 10 ) ;
sprintf ( dst_edge_dt_buf , " %df%s " , val - 1 , endptr ) ;
dst_edge_dt = dst_edge_dt_buf ;
}
edge_size = icvCalcElemSize ( dst_edge_dt , sizeof ( CvGraphEdge ) ) ;
src_edge_size = icvCalcElemSize ( edge_dt , 0 ) ;
}
graph = cvCreateGraph ( flags , header_size , vtx_size , edge_size , fs - > dststorage ) ;
if ( header_node )
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{
CV_Assert ( header_dt ) ;
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cvReadRawData ( fs , header_node , ( char * ) graph + sizeof ( CvGraph ) , header_dt ) ;
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}
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read_buf_size = MAX ( src_vtx_size * 3 , 1 < < 16 ) ;
read_buf_size = MAX ( src_edge_size * 3 , read_buf_size ) ;
read_buf = ( char * ) cvAlloc ( read_buf_size ) ;
vtx_buf = ( CvGraphVtx * * ) cvAlloc ( vtx_count * sizeof ( vtx_buf [ 0 ] ) ) ;
vtx_node = cvGetFileNodeByName ( fs , node , " vertices " ) ;
edge_node = cvGetFileNodeByName ( fs , node , " edges " ) ;
if ( ! edge_node )
CV_Error ( CV_StsBadArg , " No edges data " ) ;
if ( vtx_dt & & ! vtx_node )
CV_Error ( CV_StsBadArg , " No vertices data " ) ;
// as vertices and edges are read in similar way,
// do it as a parametrized 2-iteration loop
for ( k = 0 ; k < 2 ; k + + )
{
const char * dt = k = = 0 ? vtx_dt : edge_dt ;
int elem_size = k = = 0 ? vtx_size : edge_size ;
int src_elem_size = k = = 0 ? src_vtx_size : src_edge_size ;
int items_per_elem = k = = 0 ? vtx_items_per_elem : edge_items_per_elem ;
int elem_count = k = = 0 ? vtx_count : edge_count ;
char * dst_ptr = read_buf ;
int read_max = read_buf_size / MAX ( src_elem_size , 1 ) , read_count = 0 ;
CvSeqReader reader ;
if ( dt )
cvStartReadRawData ( fs , k = = 0 ? vtx_node : edge_node , & reader ) ;
for ( i = 0 ; i < elem_count ; i + + )
{
if ( read_count = = 0 & & dt )
{
int count = MIN ( elem_count - i , read_max ) * items_per_elem ;
cvReadRawDataSlice ( fs , & reader , count , read_buf , dt ) ;
read_count = count ;
dst_ptr = read_buf ;
}
if ( k = = 0 )
{
CvGraphVtx * vtx ;
cvGraphAddVtx ( graph , 0 , & vtx ) ;
vtx_buf [ i ] = vtx ;
if ( dt )
memcpy ( vtx + 1 , dst_ptr , src_elem_size ) ;
}
else
{
CvGraphEdge * edge = 0 ;
int vtx1 = ( ( int * ) dst_ptr ) [ 0 ] ;
int vtx2 = ( ( int * ) dst_ptr ) [ 1 ] ;
int result ;
if ( ( unsigned ) vtx1 > = ( unsigned ) vtx_count | |
( unsigned ) vtx2 > = ( unsigned ) vtx_count )
CV_Error ( CV_StsOutOfRange ,
" Some of stored vertex indices are out of range " ) ;
result = cvGraphAddEdgeByPtr ( graph ,
vtx_buf [ vtx1 ] , vtx_buf [ vtx2 ] , 0 , & edge ) ;
if ( result = = 0 )
CV_Error ( CV_StsBadArg , " Duplicated edge has occured " ) ;
edge - > weight = * ( float * ) ( dst_ptr + sizeof ( int ) * 2 ) ;
if ( elem_size > ( int ) sizeof ( CvGraphEdge ) )
{
char * dst_ptr2 = ( char * ) cvAlignPtr ( dst_ptr + sizeof ( int ) * 2 +
sizeof ( float ) , edge_user_align ) ;
memcpy ( edge + 1 , dst_ptr2 , elem_size - sizeof ( CvGraphEdge ) ) ;
}
}
dst_ptr + = src_elem_size ;
read_count - - ;
}
}
ptr = graph ;
cvFree ( & read_buf ) ;
cvFree ( & vtx_buf ) ;
return ptr ;
}
/****************************************************************************************\
* RTTI Functions *
\ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
CvTypeInfo * CvType : : first = 0 , * CvType : : last = 0 ;
CvType : : CvType ( const char * type_name ,
CvIsInstanceFunc is_instance , CvReleaseFunc release ,
CvReadFunc read , CvWriteFunc write , CvCloneFunc clone )
{
CvTypeInfo _info ;
_info . flags = 0 ;
_info . header_size = sizeof ( _info ) ;
_info . type_name = type_name ;
_info . prev = _info . next = 0 ;
_info . is_instance = is_instance ;
_info . release = release ;
_info . clone = clone ;
_info . read = read ;
_info . write = write ;
cvRegisterType ( & _info ) ;
info = first ;
}
CvType : : ~ CvType ( )
{
cvUnregisterType ( info - > type_name ) ;
}
CvType seq_type ( CV_TYPE_NAME_SEQ , icvIsSeq , icvReleaseSeq , icvReadSeq ,
icvWriteSeqTree /* this is the entry point for
writing a single sequence too */ , icvCloneSeq ) ;
CvType seq_tree_type ( CV_TYPE_NAME_SEQ_TREE , icvIsSeq , icvReleaseSeq ,
icvReadSeqTree , icvWriteSeqTree , icvCloneSeq ) ;
CvType seq_graph_type ( CV_TYPE_NAME_GRAPH , icvIsGraph , icvReleaseGraph ,
icvReadGraph , icvWriteGraph , icvCloneGraph ) ;
CvType sparse_mat_type ( CV_TYPE_NAME_SPARSE_MAT , icvIsSparseMat ,
( CvReleaseFunc ) cvReleaseSparseMat , icvReadSparseMat ,
icvWriteSparseMat , ( CvCloneFunc ) cvCloneSparseMat ) ;
CvType image_type ( CV_TYPE_NAME_IMAGE , icvIsImage , ( CvReleaseFunc ) cvReleaseImage ,
icvReadImage , icvWriteImage , ( CvCloneFunc ) cvCloneImage ) ;
CvType mat_type ( CV_TYPE_NAME_MAT , icvIsMat , ( CvReleaseFunc ) cvReleaseMat ,
icvReadMat , icvWriteMat , ( CvCloneFunc ) cvCloneMat ) ;
CvType matnd_type ( CV_TYPE_NAME_MATND , icvIsMatND , ( CvReleaseFunc ) cvReleaseMatND ,
icvReadMatND , icvWriteMatND , ( CvCloneFunc ) cvCloneMatND ) ;
CV_IMPL void
cvRegisterType ( const CvTypeInfo * _info )
{
CvTypeInfo * info = 0 ;
int i , len ;
char c ;
//if( !CvType::first )
// icvCreateStandardTypes();
if ( ! _info | | _info - > header_size ! = sizeof ( CvTypeInfo ) )
CV_Error ( CV_StsBadSize , " Invalid type info " ) ;
if ( ! _info - > is_instance | | ! _info - > release | |
! _info - > read | | ! _info - > write )
CV_Error ( CV_StsNullPtr ,
" Some of required function pointers "
" (is_instance, release, read or write) are NULL " ) ;
c = _info - > type_name [ 0 ] ;
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if ( ! cv_isalpha ( c ) & & c ! = ' _ ' )
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CV_Error ( CV_StsBadArg , " Type name should start with a letter or _ " ) ;
len = ( int ) strlen ( _info - > type_name ) ;
for ( i = 0 ; i < len ; i + + )
{
c = _info - > type_name [ i ] ;
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if ( ! cv_isalnum ( c ) & & c ! = ' - ' & & c ! = ' _ ' )
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CV_Error ( CV_StsBadArg ,
" Type name should contain only letters, digits, - and _ " ) ;
}
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info = ( CvTypeInfo * ) cvAlloc ( sizeof ( * info ) + len + 1 ) ;
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* info = * _info ;
info - > type_name = ( char * ) ( info + 1 ) ;
memcpy ( ( char * ) info - > type_name , _info - > type_name , len + 1 ) ;
info - > flags = 0 ;
info - > next = CvType : : first ;
info - > prev = 0 ;
if ( CvType : : first )
CvType : : first - > prev = info ;
else
CvType : : last = info ;
CvType : : first = info ;
}
CV_IMPL void
cvUnregisterType ( const char * type_name )
{
CvTypeInfo * info ;
info = cvFindType ( type_name ) ;
if ( info )
{
if ( info - > prev )
info - > prev - > next = info - > next ;
else
CvType : : first = info - > next ;
if ( info - > next )
info - > next - > prev = info - > prev ;
else
CvType : : last = info - > prev ;
if ( ! CvType : : first | | ! CvType : : last )
CvType : : first = CvType : : last = 0 ;
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cvFree ( & info ) ;
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}
}
CV_IMPL CvTypeInfo *
cvFirstType ( void )
{
return CvType : : first ;
}
CV_IMPL CvTypeInfo *
cvFindType ( const char * type_name )
{
CvTypeInfo * info = 0 ;
if ( type_name )
for ( info = CvType : : first ; info ! = 0 ; info = info - > next )
if ( strcmp ( info - > type_name , type_name ) = = 0 )
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break ;
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return info ;
}
CV_IMPL CvTypeInfo *
cvTypeOf ( const void * struct_ptr )
{
CvTypeInfo * info = 0 ;
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if ( struct_ptr )
{
for ( info = CvType : : first ; info ! = 0 ; info = info - > next )
if ( info - > is_instance ( struct_ptr ) )
break ;
}
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return info ;
}
/* universal functions */
CV_IMPL void
cvRelease ( void * * struct_ptr )
{
CvTypeInfo * info ;
if ( ! struct_ptr )
CV_Error ( CV_StsNullPtr , " NULL double pointer " ) ;
if ( * struct_ptr )
{
info = cvTypeOf ( * struct_ptr ) ;
if ( ! info )
CV_Error ( CV_StsError , " Unknown object type " ) ;
if ( ! info - > release )
CV_Error ( CV_StsError , " release function pointer is NULL " ) ;
info - > release ( struct_ptr ) ;
* struct_ptr = 0 ;
}
}
void * cvClone ( const void * struct_ptr )
{
void * struct_copy = 0 ;
CvTypeInfo * info ;
if ( ! struct_ptr )
CV_Error ( CV_StsNullPtr , " NULL structure pointer " ) ;
info = cvTypeOf ( struct_ptr ) ;
if ( ! info )
CV_Error ( CV_StsError , " Unknown object type " ) ;
if ( ! info - > clone )
CV_Error ( CV_StsError , " clone function pointer is NULL " ) ;
struct_copy = info - > clone ( struct_ptr ) ;
return struct_copy ;
}
/* reads matrix, image, sequence, graph etc. */
CV_IMPL void *
cvRead ( CvFileStorage * fs , CvFileNode * node , CvAttrList * list )
{
void * obj = 0 ;
CV_CHECK_FILE_STORAGE ( fs ) ;
if ( ! node )
return 0 ;
if ( ! CV_NODE_IS_USER ( node - > tag ) | | ! node - > info )
CV_Error ( CV_StsError , " The node does not represent a user object (unknown type?) " ) ;
obj = node - > info - > read ( fs , node ) ;
if ( list )
* list = cvAttrList ( 0 , 0 ) ;
return obj ;
}
/* writes matrix, image, sequence, graph etc. */
CV_IMPL void
cvWrite ( CvFileStorage * fs , const char * name ,
const void * ptr , CvAttrList attributes )
{
CvTypeInfo * info ;
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
if ( ! ptr )
CV_Error ( CV_StsNullPtr , " Null pointer to the written object " ) ;
info = cvTypeOf ( ptr ) ;
if ( ! info )
CV_Error ( CV_StsBadArg , " Unknown object " ) ;
if ( ! info - > write )
CV_Error ( CV_StsBadArg , " The object does not have write function " ) ;
info - > write ( fs , name , ptr , attributes ) ;
}
/* simple API for reading/writing data */
CV_IMPL void
cvSave ( const char * filename , const void * struct_ptr ,
const char * _name , const char * comment , CvAttrList attributes )
{
CvFileStorage * fs = 0 ;
if ( ! struct_ptr )
CV_Error ( CV_StsNullPtr , " NULL object pointer " ) ;
fs = cvOpenFileStorage ( filename , 0 , CV_STORAGE_WRITE ) ;
if ( ! fs )
CV_Error ( CV_StsError , " Could not open the file storage. Check the path and permissions " ) ;
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cv : : String name = _name ? cv : : String ( _name ) : cv : : FileStorage : : getDefaultObjectName ( filename ) ;
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if ( comment )
cvWriteComment ( fs , comment , 0 ) ;
cvWrite ( fs , name . c_str ( ) , struct_ptr , attributes ) ;
cvReleaseFileStorage ( & fs ) ;
}
CV_IMPL void *
cvLoad ( const char * filename , CvMemStorage * memstorage ,
const char * name , const char * * _real_name )
{
void * ptr = 0 ;
const char * real_name = 0 ;
cv : : FileStorage fs ( cvOpenFileStorage ( filename , memstorage , CV_STORAGE_READ ) ) ;
CvFileNode * node = 0 ;
if ( ! fs . isOpened ( ) )
return 0 ;
if ( name )
{
node = cvGetFileNodeByName ( * fs , 0 , name ) ;
}
else
{
int i , k ;
for ( k = 0 ; k < ( * fs ) - > roots - > total ; k + + )
{
CvSeq * seq ;
CvSeqReader reader ;
node = ( CvFileNode * ) cvGetSeqElem ( ( * fs ) - > roots , k ) ;
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CV_Assert ( node ! = NULL ) ;
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if ( ! CV_NODE_IS_MAP ( node - > tag ) )
return 0 ;
seq = node - > data . seq ;
node = 0 ;
cvStartReadSeq ( seq , & reader , 0 ) ;
// find the first element in the map
for ( i = 0 ; i < seq - > total ; i + + )
{
if ( CV_IS_SET_ELEM ( reader . ptr ) )
{
node = ( CvFileNode * ) reader . ptr ;
goto stop_search ;
}
CV_NEXT_SEQ_ELEM ( seq - > elem_size , reader ) ;
}
}
stop_search :
;
}
if ( ! node )
CV_Error ( CV_StsObjectNotFound , " Could not find the/an object in file storage " ) ;
real_name = cvGetFileNodeName ( node ) ;
ptr = cvRead ( * fs , node , 0 ) ;
// sanity check
if ( ! memstorage & & ( CV_IS_SEQ ( ptr ) | | CV_IS_SET ( ptr ) ) )
CV_Error ( CV_StsNullPtr ,
" NULL memory storage is passed - the loaded dynamic structure can not be stored " ) ;
if ( cvGetErrStatus ( ) < 0 )
{
cvRelease ( ( void * * ) & ptr ) ;
real_name = 0 ;
}
if ( _real_name )
{
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if ( real_name )
{
* _real_name = ( const char * ) cvAlloc ( strlen ( real_name ) ) ;
memcpy ( ( void * ) * _real_name , real_name , strlen ( real_name ) ) ;
} else {
* _real_name = 0 ;
}
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}
return ptr ;
}
///////////////////////// new C++ interface for CvFileStorage ///////////////////////////
namespace cv
{
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static void getElemSize ( const String & fmt , size_t & elemSize , size_t & cn )
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{
const char * dt = fmt . c_str ( ) ;
cn = 1 ;
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if ( cv_isdigit ( dt [ 0 ] ) )
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{
cn = dt [ 0 ] - ' 0 ' ;
dt + + ;
}
char c = dt [ 0 ] ;
elemSize = cn * ( c = = ' u ' | | c = = ' c ' ? sizeof ( uchar ) : c = = ' w ' | | c = = ' s ' ? sizeof ( ushort ) :
c = = ' i ' ? sizeof ( int ) : c = = ' f ' ? sizeof ( float ) : c = = ' d ' ? sizeof ( double ) :
c = = ' r ' ? sizeof ( void * ) : ( size_t ) 0 ) ;
}
FileStorage : : FileStorage ( )
{
state = UNDEFINED ;
}
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FileStorage : : FileStorage ( const String & filename , int flags , const String & encoding )
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{
state = UNDEFINED ;
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open ( filename , flags , encoding ) ;
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}
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FileStorage : : FileStorage ( CvFileStorage * _fs , bool owning )
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{
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if ( owning ) fs . reset ( _fs ) ;
else fs = Ptr < CvFileStorage > ( Ptr < CvFileStorage > ( ) , _fs ) ;
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state = _fs ? NAME_EXPECTED + INSIDE_MAP : UNDEFINED ;
}
FileStorage : : ~ FileStorage ( )
{
while ( structs . size ( ) > 0 )
{
cvEndWriteStruct ( fs ) ;
structs . pop_back ( ) ;
}
}
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bool FileStorage : : open ( const String & filename , int flags , const String & encoding )
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{
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CV_INSTRUMENT_REGION ( )
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release ( ) ;
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fs . reset ( cvOpenFileStorage ( filename . c_str ( ) , 0 , flags ,
! encoding . empty ( ) ? encoding . c_str ( ) : 0 ) ) ;
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bool ok = isOpened ( ) ;
state = ok ? NAME_EXPECTED + INSIDE_MAP : UNDEFINED ;
return ok ;
}
bool FileStorage : : isOpened ( ) const
{
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return fs & & fs - > is_opened ;
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}
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void FileStorage : : release ( )
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{
fs . release ( ) ;
structs . clear ( ) ;
state = UNDEFINED ;
}
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String FileStorage : : releaseAndGetString ( )
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{
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String buf ;
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if ( fs & & fs - > outbuf )
icvClose ( fs , & buf ) ;
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release ( ) ;
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return buf ;
}
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FileNode FileStorage : : root ( int streamidx ) const
{
return isOpened ( ) ? FileNode ( fs , cvGetRootFileNode ( fs , streamidx ) ) : FileNode ( ) ;
}
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int FileStorage : : getFormat ( ) const
{
CV_Assert ( ! fs . empty ( ) ) ;
return fs - > fmt & FORMAT_MASK ;
}
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FileStorage & operator < < ( FileStorage & fs , const String & str )
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{
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CV_TRACE_REGION_VERBOSE ( ) ;
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2010-05-12 01:44:00 +08:00
enum { NAME_EXPECTED = FileStorage : : NAME_EXPECTED ,
VALUE_EXPECTED = FileStorage : : VALUE_EXPECTED ,
INSIDE_MAP = FileStorage : : INSIDE_MAP } ;
const char * _str = str . c_str ( ) ;
if ( ! fs . isOpened ( ) | | ! _str )
return fs ;
if ( * _str = = ' } ' | | * _str = = ' ] ' )
{
if ( fs . structs . empty ( ) )
CV_Error_ ( CV_StsError , ( " Extra closing '%c' " , * _str ) ) ;
if ( ( * _str = = ' ] ' ? ' [ ' : ' { ' ) ! = fs . structs . back ( ) )
CV_Error_ ( CV_StsError ,
( " The closing '%c' does not match the opening '%c' " , * _str , fs . structs . back ( ) ) ) ;
fs . structs . pop_back ( ) ;
fs . state = fs . structs . empty ( ) | | fs . structs . back ( ) = = ' { ' ?
INSIDE_MAP + NAME_EXPECTED : VALUE_EXPECTED ;
cvEndWriteStruct ( * fs ) ;
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fs . elname = String ( ) ;
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}
else if ( fs . state = = NAME_EXPECTED + INSIDE_MAP )
{
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if ( ! cv_isalpha ( * _str ) & & * _str ! = ' _ ' )
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CV_Error_ ( CV_StsError , ( " Incorrect element name %s " , _str ) ) ;
fs . elname = str ;
fs . state = VALUE_EXPECTED + INSIDE_MAP ;
}
else if ( ( fs . state & 3 ) = = VALUE_EXPECTED )
{
if ( * _str = = ' { ' | | * _str = = ' [ ' )
{
fs . structs . push_back ( * _str ) ;
int flags = * _str + + = = ' { ' ? CV_NODE_MAP : CV_NODE_SEQ ;
fs . state = flags = = CV_NODE_MAP ? INSIDE_MAP +
NAME_EXPECTED : VALUE_EXPECTED ;
if ( * _str = = ' : ' )
{
flags | = CV_NODE_FLOW ;
_str + + ;
}
cvStartWriteStruct ( * fs , fs . elname . size ( ) > 0 ? fs . elname . c_str ( ) : 0 ,
flags , * _str ? _str : 0 ) ;
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fs . elname = String ( ) ;
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}
else
{
write ( fs , fs . elname , ( _str [ 0 ] = = ' \\ ' & & ( _str [ 1 ] = = ' { ' | | _str [ 1 ] = = ' } ' | |
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_str [ 1 ] = = ' [ ' | | _str [ 1 ] = = ' ] ' ) ) ? String ( _str + 1 ) : str ) ;
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if ( fs . state = = INSIDE_MAP + VALUE_EXPECTED )
fs . state = INSIDE_MAP + NAME_EXPECTED ;
}
}
else
CV_Error ( CV_StsError , " Invalid fs.state " ) ;
return fs ;
}
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void FileStorage : : writeRaw ( const String & fmt , const uchar * vec , size_t len )
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{
if ( ! isOpened ( ) )
return ;
size_t elemSize , cn ;
getElemSize ( fmt , elemSize , cn ) ;
CV_Assert ( len % elemSize = = 0 ) ;
cvWriteRawData ( fs , vec , ( int ) ( len / elemSize ) , fmt . c_str ( ) ) ;
}
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void FileStorage : : writeObj ( const String & name , const void * obj )
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{
if ( ! isOpened ( ) )
return ;
cvWrite ( fs , name . size ( ) > 0 ? name . c_str ( ) : 0 , obj ) ;
}
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void FileStorage : : write ( const String & name , double val )
{
* this < < name < < val ;
}
void FileStorage : : write ( const String & name , const String & val )
{
* this < < name < < val ;
}
void FileStorage : : write ( const String & name , InputArray val )
{
* this < < name < < val . getMat ( ) ;
}
void FileStorage : : writeComment ( const String & comment , bool append )
{
cvWriteComment ( fs , comment . c_str ( ) , append ? 1 : 0 ) ;
}
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FileNode FileStorage : : operator [ ] ( const String & nodename ) const
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{
return FileNode ( fs , cvGetFileNodeByName ( fs , 0 , nodename . c_str ( ) ) ) ;
}
FileNode FileStorage : : operator [ ] ( const char * nodename ) const
{
return FileNode ( fs , cvGetFileNodeByName ( fs , 0 , nodename ) ) ;
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}
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FileNode FileNode : : operator [ ] ( const String & nodename ) const
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{
return FileNode ( fs , cvGetFileNodeByName ( fs , node , nodename . c_str ( ) ) ) ;
}
FileNode FileNode : : operator [ ] ( const char * nodename ) const
{
return FileNode ( fs , cvGetFileNodeByName ( fs , node , nodename ) ) ;
}
FileNode FileNode : : operator [ ] ( int i ) const
{
return isSeq ( ) ? FileNode ( fs , ( CvFileNode * ) cvGetSeqElem ( node - > data . seq , i ) ) :
i = = 0 ? * this : FileNode ( ) ;
}
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String FileNode : : name ( ) const
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{
const char * str ;
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return ! node | | ( str = cvGetFileNodeName ( node ) ) = = 0 ? String ( ) : String ( str ) ;
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}
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void * FileNode : : readObj ( ) const
{
if ( ! fs | | ! node )
return 0 ;
return cvRead ( ( CvFileStorage * ) fs , ( CvFileNode * ) node ) ;
}
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static const FileNodeIterator : : SeqReader emptyReader = { 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 } ;
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FileNodeIterator : : FileNodeIterator ( )
{
fs = 0 ;
container = 0 ;
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reader = emptyReader ;
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remaining = 0 ;
}
FileNodeIterator : : FileNodeIterator ( const CvFileStorage * _fs ,
const CvFileNode * _node , size_t _ofs )
{
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reader = emptyReader ;
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if ( _fs & & _node & & CV_NODE_TYPE ( _node - > tag ) ! = CV_NODE_NONE )
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{
int node_type = _node - > tag & FileNode : : TYPE_MASK ;
fs = _fs ;
container = _node ;
if ( ! ( _node - > tag & FileNode : : USER ) & & ( node_type = = FileNode : : SEQ | | node_type = = FileNode : : MAP ) )
{
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cvStartReadSeq ( _node - > data . seq , ( CvSeqReader * ) & reader ) ;
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remaining = FileNode ( _fs , _node ) . size ( ) ;
}
else
{
reader . ptr = ( schar * ) _node ;
reader . seq = 0 ;
remaining = 1 ;
}
( * this ) + = ( int ) _ofs ;
}
else
{
fs = 0 ;
container = 0 ;
remaining = 0 ;
}
}
FileNodeIterator : : FileNodeIterator ( const FileNodeIterator & it )
{
fs = it . fs ;
container = it . container ;
reader = it . reader ;
remaining = it . remaining ;
}
FileNodeIterator & FileNodeIterator : : operator + + ( )
{
if ( remaining > 0 )
{
if ( reader . seq )
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{
if ( ( ( reader ) . ptr + = ( ( ( CvSeq * ) reader . seq ) - > elem_size ) ) > = ( reader ) . block_max )
{
cvChangeSeqBlock ( ( CvSeqReader * ) & ( reader ) , 1 ) ;
}
}
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remaining - - ;
}
return * this ;
}
FileNodeIterator FileNodeIterator : : operator + + ( int )
{
FileNodeIterator it = * this ;
+ + ( * this ) ;
return it ;
}
FileNodeIterator & FileNodeIterator : : operator - - ( )
{
if ( remaining < FileNode ( fs , container ) . size ( ) )
{
if ( reader . seq )
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{
if ( ( ( reader ) . ptr - = ( ( ( CvSeq * ) reader . seq ) - > elem_size ) ) < ( reader ) . block_min )
{
cvChangeSeqBlock ( ( CvSeqReader * ) & ( reader ) , - 1 ) ;
}
}
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remaining + + ;
}
return * this ;
}
FileNodeIterator FileNodeIterator : : operator - - ( int )
{
FileNodeIterator it = * this ;
- - ( * this ) ;
return it ;
}
FileNodeIterator & FileNodeIterator : : operator + = ( int ofs )
{
if ( ofs = = 0 )
return * this ;
if ( ofs > 0 )
ofs = std : : min ( ofs , ( int ) remaining ) ;
else
{
size_t count = FileNode ( fs , container ) . size ( ) ;
ofs = ( int ) ( remaining - std : : min ( remaining - ofs , count ) ) ;
}
remaining - = ofs ;
if ( reader . seq )
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cvSetSeqReaderPos ( ( CvSeqReader * ) & reader , ofs , 1 ) ;
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return * this ;
}
FileNodeIterator & FileNodeIterator : : operator - = ( int ofs )
{
return operator + = ( - ofs ) ;
}
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FileNodeIterator & FileNodeIterator : : readRaw ( const String & fmt , uchar * vec , size_t maxCount )
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{
if ( fs & & container & & remaining > 0 )
{
size_t elem_size , cn ;
getElemSize ( fmt , elem_size , cn ) ;
CV_Assert ( elem_size > 0 ) ;
size_t count = std : : min ( remaining , maxCount ) ;
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if ( reader . seq )
{
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cvReadRawDataSlice ( fs , ( CvSeqReader * ) & reader , ( int ) count , vec , fmt . c_str ( ) ) ;
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remaining - = count * cn ;
}
else
{
cvReadRawData ( fs , container , vec , fmt . c_str ( ) ) ;
remaining = 0 ;
}
}
return * this ;
}
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void write ( FileStorage & fs , const String & name , int value )
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{ cvWriteInt ( * fs , name . size ( ) ? name . c_str ( ) : 0 , value ) ; }
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void write ( FileStorage & fs , const String & name , float value )
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{ cvWriteReal ( * fs , name . size ( ) ? name . c_str ( ) : 0 , value ) ; }
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void write ( FileStorage & fs , const String & name , double value )
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{ cvWriteReal ( * fs , name . size ( ) ? name . c_str ( ) : 0 , value ) ; }
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void write ( FileStorage & fs , const String & name , const String & value )
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{ cvWriteString ( * fs , name . size ( ) ? name . c_str ( ) : 0 , value . c_str ( ) ) ; }
void writeScalar ( FileStorage & fs , int value )
{ cvWriteInt ( * fs , 0 , value ) ; }
void writeScalar ( FileStorage & fs , float value )
{ cvWriteReal ( * fs , 0 , value ) ; }
void writeScalar ( FileStorage & fs , double value )
{ cvWriteReal ( * fs , 0 , value ) ; }
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void writeScalar ( FileStorage & fs , const String & value )
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{ cvWriteString ( * fs , 0 , value . c_str ( ) ) ; }
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void write ( FileStorage & fs , const String & name , const Mat & value )
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{
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if ( value . dims < = 2 )
{
CvMat mat = value ;
cvWrite ( * fs , name . size ( ) ? name . c_str ( ) : 0 , & mat ) ;
}
else
{
CvMatND mat = value ;
cvWrite ( * fs , name . size ( ) ? name . c_str ( ) : 0 , & mat ) ;
}
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}
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// TODO: the 4 functions below need to be implemented more efficiently
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void write ( FileStorage & fs , const String & name , const SparseMat & value )
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{
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Ptr < CvSparseMat > mat ( cvCreateSparseMat ( value ) ) ;
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cvWrite ( * fs , name . size ( ) ? name . c_str ( ) : 0 , mat ) ;
}
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internal : : WriteStructContext : : WriteStructContext ( FileStorage & _fs ,
const String & name , int flags , const String & typeName ) : fs ( & _fs )
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{
cvStartWriteStruct ( * * fs , ! name . empty ( ) ? name . c_str ( ) : 0 , flags ,
! typeName . empty ( ) ? typeName . c_str ( ) : 0 ) ;
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fs - > elname = String ( ) ;
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if ( ( flags & FileNode : : TYPE_MASK ) = = FileNode : : SEQ )
{
fs - > state = FileStorage : : VALUE_EXPECTED ;
fs - > structs . push_back ( ' [ ' ) ;
}
else
{
fs - > state = FileStorage : : NAME_EXPECTED + FileStorage : : INSIDE_MAP ;
fs - > structs . push_back ( ' { ' ) ;
}
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}
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internal : : WriteStructContext : : ~ WriteStructContext ( )
{
cvEndWriteStruct ( * * fs ) ;
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fs - > structs . pop_back ( ) ;
fs - > state = fs - > structs . empty ( ) | | fs - > structs . back ( ) = = ' { ' ?
FileStorage : : NAME_EXPECTED + FileStorage : : INSIDE_MAP :
FileStorage : : VALUE_EXPECTED ;
fs - > elname = String ( ) ;
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}
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void read ( const FileNode & node , Mat & mat , const Mat & default_mat )
{
if ( node . empty ( ) )
{
default_mat . copyTo ( mat ) ;
return ;
}
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void * obj = cvRead ( ( CvFileStorage * ) node . fs , ( CvFileNode * ) * node ) ;
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if ( CV_IS_MAT_HDR_Z ( obj ) )
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{
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cvarrToMat ( obj ) . copyTo ( mat ) ;
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cvReleaseMat ( ( CvMat * * ) & obj ) ;
}
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else if ( CV_IS_MATND_HDR ( obj ) )
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{
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cvarrToMat ( obj ) . copyTo ( mat ) ;
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cvReleaseMatND ( ( CvMatND * * ) & obj ) ;
}
else
{
cvRelease ( & obj ) ;
CV_Error ( CV_StsBadArg , " Unknown array type " ) ;
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}
}
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void read ( const FileNode & node , SparseMat & mat , const SparseMat & default_mat )
{
if ( node . empty ( ) )
{
default_mat . copyTo ( mat ) ;
return ;
}
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Ptr < CvSparseMat > m ( ( CvSparseMat * ) cvRead ( ( CvFileStorage * ) node . fs , ( CvFileNode * ) * node ) ) ;
CV_Assert ( CV_IS_SPARSE_MAT ( m ) ) ;
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m - > copyToSparseMat ( mat ) ;
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}
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void write ( FileStorage & fs , const String & objname , const std : : vector < KeyPoint > & keypoints )
{
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cv : : internal : : WriteStructContext ws ( fs , objname , CV_NODE_SEQ + CV_NODE_FLOW ) ;
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int i , npoints = ( int ) keypoints . size ( ) ;
for ( i = 0 ; i < npoints ; i + + )
{
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write ( fs , keypoints [ i ] ) ;
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}
}
void read ( const FileNode & node , std : : vector < KeyPoint > & keypoints )
{
keypoints . resize ( 0 ) ;
FileNodeIterator it = node . begin ( ) , it_end = node . end ( ) ;
for ( ; it ! = it_end ; )
{
KeyPoint kpt ;
it > > kpt . pt . x > > kpt . pt . y > > kpt . size > > kpt . angle > > kpt . response > > kpt . octave > > kpt . class_id ;
keypoints . push_back ( kpt ) ;
}
}
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void write ( FileStorage & fs , const String & objname , const std : : vector < DMatch > & matches )
{
cv : : internal : : WriteStructContext ws ( fs , objname , CV_NODE_SEQ + CV_NODE_FLOW ) ;
int i , n = ( int ) matches . size ( ) ;
for ( i = 0 ; i < n ; i + + )
{
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write ( fs , matches [ i ] ) ;
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}
}
void read ( const FileNode & node , std : : vector < DMatch > & matches )
{
matches . resize ( 0 ) ;
FileNodeIterator it = node . begin ( ) , it_end = node . end ( ) ;
for ( ; it ! = it_end ; )
{
DMatch m ;
it > > m . queryIdx > > m . trainIdx > > m . imgIdx > > m . distance ;
matches . push_back ( m ) ;
}
}
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int FileNode : : type ( ) const { return ! node ? NONE : ( node - > tag & TYPE_MASK ) ; }
bool FileNode : : isNamed ( ) const { return ! node ? false : ( node - > tag & NAMED ) ! = 0 ; }
size_t FileNode : : size ( ) const
{
int t = type ( ) ;
return t = = MAP ? ( size_t ) ( ( CvSet * ) node - > data . map ) - > active_count :
t = = SEQ ? ( size_t ) node - > data . seq - > total : ( size_t ) ! isNone ( ) ;
}
void read ( const FileNode & node , int & value , int default_value )
{
value = ! node . node ? default_value :
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CV_NODE_IS_INT ( node . node - > tag ) ? node . node - > data . i : std : : numeric_limits < int > : : max ( ) ;
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}
void read ( const FileNode & node , float & value , float default_value )
{
value = ! node . node ? default_value :
CV_NODE_IS_INT ( node . node - > tag ) ? ( float ) node . node - > data . i :
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CV_NODE_IS_REAL ( node . node - > tag ) ? saturate_cast < float > ( node . node - > data . f ) : std : : numeric_limits < float > : : max ( ) ;
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}
void read ( const FileNode & node , double & value , double default_value )
{
value = ! node . node ? default_value :
CV_NODE_IS_INT ( node . node - > tag ) ? ( double ) node . node - > data . i :
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CV_NODE_IS_REAL ( node . node - > tag ) ? node . node - > data . f : std : : numeric_limits < double > : : max ( ) ;
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}
void read ( const FileNode & node , String & value , const String & default_value )
{
value = ! node . node ? default_value : CV_NODE_IS_STRING ( node . node - > tag ) ? String ( node . node - > data . str . ptr ) : String ( ) ;
}
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void read ( const FileNode & node , std : : string & value , const std : : string & default_value )
{
value = ! node . node ? default_value : CV_NODE_IS_STRING ( node . node - > tag ) ? std : : string ( node . node - > data . str . ptr ) : default_value ;
}
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}
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/****************************************************************************
* Newly added for Base64
*
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************************************************************************
* constant
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# if CHAR_BIT != 8
# error "`char` should be 8 bit."
# endif
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base64 : : uint8_t const base64 : : base64_mapping [ ] =
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" ABCDEFGHIJKLMNOPQRSTUVWXYZ "
" abcdefghijklmnopqrstuvwxyz "
" 0123456789+/ " ;
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base64 : : uint8_t const base64 : : base64_padding = ' = ' ;
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base64 : : uint8_t const base64 : : base64_demapping [ ] = {
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0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 62 , 0 , 0 , 0 , 63 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ,
15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 0 , 0 , 0 , 0 , 0 , 0 , 26 , 27 , 28 ,
29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ,
49 , 50 , 51 , 0 , 0 , 0 , 0 ,
} ;
/* `base64_demapping` above is generated in this way:
* ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` `
* std : : string mapping ( ( const char * ) base64_mapping ) ;
* for ( auto ch = 0 ; ch < 127 ; ch + + ) {
* auto i = mapping . find ( ch ) ;
* printf ( " %3u, " , ( i ! = std : : string : : npos ? i : 0 ) ) ;
* }
* putchar ( ' \n ' ) ;
* ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` `
*/
/****************************************************************************
* function
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
size_t base64 : : base64_encode ( uint8_t const * src , uint8_t * dst , size_t off , size_t cnt )
{
if ( ! src | | ! dst | | ! cnt )
return 0 ;
/* initialize beginning and end */
uint8_t * dst_beg = dst ;
uint8_t * dst_cur = dst_beg ;
uint8_t const * src_beg = src + off ;
uint8_t const * src_cur = src_beg ;
uint8_t const * src_end = src_cur + cnt / 3U * 3U ;
/* integer multiples part */
while ( src_cur < src_end ) {
uint8_t _2 = * src_cur + + ;
uint8_t _1 = * src_cur + + ;
uint8_t _0 = * src_cur + + ;
* dst_cur + + = base64_mapping [ _2 > > 2U ] ;
* dst_cur + + = base64_mapping [ ( _1 & 0xF0U ) > > 4U | ( _2 & 0x03U ) < < 4U ] ;
* dst_cur + + = base64_mapping [ ( _0 & 0xC0U ) > > 6U | ( _1 & 0x0FU ) < < 2U ] ;
* dst_cur + + = base64_mapping [ _0 & 0x3FU ] ;
}
/* remainder part */
size_t rst = src_beg + cnt - src_cur ;
if ( rst = = 1U ) {
uint8_t _2 = * src_cur + + ;
* dst_cur + + = base64_mapping [ _2 > > 2U ] ;
* dst_cur + + = base64_mapping [ ( _2 & 0x03U ) < < 4U ] ;
} else if ( rst = = 2U ) {
uint8_t _2 = * src_cur + + ;
uint8_t _1 = * src_cur + + ;
* dst_cur + + = base64_mapping [ _2 > > 2U ] ;
* dst_cur + + = base64_mapping [ ( _2 & 0x03U ) < < 4U | ( _1 & 0xF0U ) > > 4U ] ;
* dst_cur + + = base64_mapping [ ( _1 & 0x0FU ) < < 2U ] ;
}
/* padding */
switch ( rst )
{
case 1U : * dst_cur + + = base64_padding ;
case 2U : * dst_cur + + = base64_padding ;
default : * dst_cur = 0 ;
break ;
}
return static_cast < size_t > ( dst_cur - dst_beg ) ;
}
size_t base64 : : base64_encode ( char const * src , char * dst , size_t off , size_t cnt )
{
if ( cnt = = 0U )
cnt = std : : strlen ( src ) ;
return base64_encode
(
reinterpret_cast < uint8_t const * > ( src ) ,
reinterpret_cast < uint8_t * > ( dst ) ,
off ,
cnt
) ;
}
size_t base64 : : base64_decode ( uint8_t const * src , uint8_t * dst , size_t off , size_t cnt )
{
/* check parameters */
if ( ! src | | ! dst | | ! cnt )
return 0U ;
if ( cnt & 0x3U )
return 0U ;
/* initialize beginning and end */
uint8_t * dst_beg = dst ;
uint8_t * dst_cur = dst_beg ;
uint8_t const * src_beg = src + off ;
uint8_t const * src_cur = src_beg ;
uint8_t const * src_end = src_cur + cnt ;
/* start decoding */
while ( src_cur < src_end ) {
uint8_t d50 = base64_demapping [ * src_cur + + ] ;
uint8_t c50 = base64_demapping [ * src_cur + + ] ;
uint8_t b50 = base64_demapping [ * src_cur + + ] ;
uint8_t a50 = base64_demapping [ * src_cur + + ] ;
uint8_t b10 = b50 & 0x03U ;
uint8_t b52 = b50 & 0x3CU ;
uint8_t c30 = c50 & 0x0FU ;
uint8_t c54 = c50 & 0x30U ;
* dst_cur + + = ( d50 < < 2U ) | ( c54 > > 4U ) ;
* dst_cur + + = ( c30 < < 4U ) | ( b52 > > 2U ) ;
* dst_cur + + = ( b10 < < 6U ) | ( a50 > > 0U ) ;
}
* dst_cur = 0 ;
return size_t ( dst_cur - dst_beg ) ;
}
size_t base64 : : base64_decode ( char const * src , char * dst , size_t off , size_t cnt )
{
if ( cnt = = 0U )
cnt = std : : strlen ( src ) ;
return base64_decode
(
reinterpret_cast < uint8_t const * > ( src ) ,
reinterpret_cast < uint8_t * > ( dst ) ,
off ,
cnt
) ;
}
bool base64 : : base64_valid ( uint8_t const * src , size_t off , size_t cnt )
{
/* check parameters */
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if ( src = = 0 | | src + off = = 0 )
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return false ;
if ( cnt = = 0U )
cnt = std : : strlen ( reinterpret_cast < char const * > ( src ) ) ;
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if ( cnt = = 0U )
return false ;
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if ( cnt & 0x3U )
return false ;
/* initialize beginning and end */
uint8_t const * beg = src + off ;
uint8_t const * end = beg + cnt ;
/* skip padding */
if ( * ( end - 1U ) = = base64_padding ) {
end - - ;
if ( * ( end - 1U ) = = base64_padding )
end - - ;
}
/* find illegal characters */
for ( uint8_t const * iter = beg ; iter < end ; iter + + )
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if ( * iter > 126U | | ( ! base64_demapping [ ( uint8_t ) * iter ] & & * iter ! = base64_mapping [ 0 ] ) )
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return false ;
return true ;
}
bool base64 : : base64_valid ( char const * src , size_t off , size_t cnt )
{
if ( cnt = = 0U )
cnt = std : : strlen ( src ) ;
return base64_valid ( reinterpret_cast < uint8_t const * > ( src ) , off , cnt ) ;
}
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size_t base64 : : base64_encode_buffer_size ( size_t cnt , bool is_end_with_zero )
{
size_t additional = static_cast < size_t > ( is_end_with_zero = = true ) ;
return ( cnt + 2U ) / 3U * 4U + additional ;
}
size_t base64 : : base64_decode_buffer_size ( size_t cnt , bool is_end_with_zero )
{
size_t additional = static_cast < size_t > ( is_end_with_zero = = true ) ;
return cnt / 4U * 3U + additional ;
}
size_t base64 : : base64_decode_buffer_size ( size_t cnt , char const * src , bool is_end_with_zero )
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{
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return base64_decode_buffer_size ( cnt , reinterpret_cast < uchar const * > ( src ) , is_end_with_zero ) ;
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}
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size_t base64 : : base64_decode_buffer_size ( size_t cnt , uchar const * src , bool is_end_with_zero )
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{
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size_t padding_cnt = 0U ;
for ( uchar const * ptr = src + cnt - 1U ; * ptr = = base64_padding ; ptr - - )
padding_cnt + + ;
return base64_decode_buffer_size ( cnt , is_end_with_zero ) - padding_cnt ;
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}
/****************************************************************************
* to_binary & & binary_to
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
template < typename _uint_t > inline size_t base64 : :
to_binary ( _uint_t val , uchar * cur )
{
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size_t delta = CHAR_BIT ;
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size_t cnt = sizeof ( _uint_t ) ;
while ( cnt - - > static_cast < size_t > ( 0U ) ) {
* cur + + = static_cast < uchar > ( val ) ;
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val > > = delta ;
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}
return sizeof ( _uint_t ) ;
}
template < > inline size_t base64 : : to_binary ( double val , uchar * cur )
{
Cv64suf bit64 ;
bit64 . f = val ;
return to_binary ( bit64 . u , cur ) ;
}
template < > inline size_t base64 : : to_binary ( float val , uchar * cur )
{
Cv32suf bit32 ;
bit32 . f = val ;
return to_binary ( bit32 . u , cur ) ;
}
template < typename _primitive_t > inline size_t base64 : :
to_binary ( uchar const * val , uchar * cur )
{
return to_binary < _primitive_t > ( * reinterpret_cast < _primitive_t const * > ( val ) , cur ) ;
}
template < typename _uint_t > inline size_t base64 : :
binary_to ( uchar const * cur , _uint_t & val )
{
val = static_cast < _uint_t > ( 0 ) ;
for ( size_t i = static_cast < size_t > ( 0U ) ; i < sizeof ( _uint_t ) ; i + + )
val | = ( static_cast < _uint_t > ( * cur + + ) < < ( i * CHAR_BIT ) ) ;
return sizeof ( _uint_t ) ;
}
template < > inline size_t base64 : : binary_to ( uchar const * cur , double & val )
{
Cv64suf bit64 ;
binary_to ( cur , bit64 . u ) ;
val = bit64 . f ;
return sizeof ( val ) ;
}
template < > inline size_t base64 : : binary_to ( uchar const * cur , float & val )
{
Cv32suf bit32 ;
binary_to ( cur , bit32 . u ) ;
val = bit32 . f ;
return sizeof ( val ) ;
}
template < typename _primitive_t > inline size_t base64 : :
binary_to ( uchar const * cur , uchar * val )
{
return binary_to < _primitive_t > ( cur , * reinterpret_cast < _primitive_t * > ( val ) ) ;
}
/****************************************************************************
* others
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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std : : string base64 : : make_base64_header ( const char * dt )
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{
std : : ostringstream oss ;
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oss < < dt < < ' ' ;
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std : : string buffer ( oss . str ( ) ) ;
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CV_Assert ( buffer . size ( ) < HEADER_SIZE ) ;
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buffer . reserve ( HEADER_SIZE ) ;
while ( buffer . size ( ) < HEADER_SIZE )
buffer + = ' ' ;
return buffer ;
}
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bool base64 : : read_base64_header ( std : : vector < char > const & header , std : : string & dt )
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{
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std : : istringstream iss ( header . data ( ) ) ;
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return ! ! ( iss > > dt ) ; //the "std::basic_ios::operator bool" differs between C++98 and C++11. The "double not" syntax is portable and covers both cases with equivalent meaning
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}
/****************************************************************************
* Parser
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
base64 : : Base64ContextParser : : Base64ContextParser ( uchar * buffer , size_t size )
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: dst_cur ( buffer )
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, dst_end ( buffer + size )
, base64_buffer ( BUFFER_LEN )
, src_beg ( 0 )
, src_cur ( 0 )
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, src_end ( 0 )
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, binary_buffer ( base64_encode_buffer_size ( BUFFER_LEN ) )
{
src_beg = binary_buffer . data ( ) ;
src_cur = src_beg ;
src_end = src_beg + BUFFER_LEN ;
}
base64 : : Base64ContextParser : : ~ Base64ContextParser ( )
{
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/* encode the rest binary data to base64 buffer */
if ( src_cur ! = src_beg )
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flush ( ) ;
}
base64 : : Base64ContextParser & base64 : : Base64ContextParser : :
read ( const uchar * beg , const uchar * end )
{
if ( beg > = end )
return * this ;
while ( beg < end ) {
/* collect binary data and copy to binary buffer */
size_t len = std : : min ( end - beg , src_end - src_cur ) ;
std : : memcpy ( src_cur , beg , len ) ;
beg + = len ;
src_cur + = len ;
if ( src_cur > = src_end ) {
/* binary buffer is full. */
/* decode it send result to dst */
CV_Assert ( flush ( ) ) ; /* check for base64_valid */
}
}
return * this ;
}
bool base64 : : Base64ContextParser : : flush ( )
{
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if ( ! base64_valid ( src_beg , 0U , src_cur - src_beg ) )
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return false ;
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if ( src_cur = = src_beg )
return true ;
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uchar * buffer = binary_buffer . data ( ) ;
size_t len = base64_decode ( src_beg , buffer , 0U , src_cur - src_beg ) ;
src_cur = src_beg ;
/* unexpected error */
CV_Assert ( len ! = 0 ) ;
/* buffer is full */
CV_Assert ( dst_cur + len < dst_end ) ;
if ( dst_cur + len < dst_end ) {
/* send data to dst */
std : : memcpy ( dst_cur , buffer , len ) ;
dst_cur + = len ;
}
return true ;
}
/****************************************************************************
* Emitter
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* A decorator for CvFileStorage
* - no copyable
* - not safe for now
* - move constructor may be needed if C + + 11
*/
class base64 : : Base64ContextEmitter
{
public :
explicit Base64ContextEmitter ( CvFileStorage * fs )
: file_storage ( fs )
, binary_buffer ( BUFFER_LEN )
, base64_buffer ( base64_encode_buffer_size ( BUFFER_LEN ) )
, src_beg ( 0 )
, src_cur ( 0 )
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, src_end ( 0 )
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{
src_beg = binary_buffer . data ( ) ;
src_end = src_beg + BUFFER_LEN ;
src_cur = src_beg ;
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CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
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if ( fs - > fmt = = CV_STORAGE_FORMAT_JSON )
{
/* clean and break buffer */
* fs - > buffer + + = ' \0 ' ;
: : icvPuts ( fs , fs - > buffer_start ) ;
fs - > buffer = fs - > buffer_start ;
memset ( file_storage - > buffer_start , 0 , static_cast < int > ( file_storage - > space ) ) ;
: : icvPuts ( fs , " \" $base64$ " ) ;
}
else
{
: : icvFSFlush ( file_storage ) ;
}
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}
~ Base64ContextEmitter ( )
{
/* cleaning */
if ( src_cur ! = src_beg )
flush ( ) ; /* encode the rest binary data to base64 buffer */
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if ( file_storage - > fmt = = CV_STORAGE_FORMAT_JSON )
{
/* clean and break buffer */
: : icvPuts ( file_storage , " \" " ) ;
file_storage - > buffer = file_storage - > buffer_start ;
: : icvFSFlush ( file_storage ) ;
memset ( file_storage - > buffer_start , 0 , static_cast < int > ( file_storage - > space ) ) ;
file_storage - > buffer = file_storage - > buffer_start ;
}
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}
Base64ContextEmitter & write ( const uchar * beg , const uchar * end )
{
if ( beg > = end )
return * this ;
while ( beg < end ) {
/* collect binary data and copy to binary buffer */
size_t len = std : : min ( end - beg , src_end - src_cur ) ;
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std : : memcpy ( src_cur , beg , len ) ;
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beg + = len ;
src_cur + = len ;
if ( src_cur > = src_end ) {
/* binary buffer is full. */
/* encode it to base64 and send result to fs */
flush ( ) ;
}
}
return * this ;
}
/*
* a convertor must provide :
* - ` operator > > ( uchar * & dst ) ` for writting current binary data to ` dst ` and moving to next data .
* - ` operator bool ` for checking if current loaction is valid and not the end .
*/
template < typename _to_binary_convertor_t > inline
Base64ContextEmitter & write ( _to_binary_convertor_t & convertor )
{
static const size_t BUFFER_MAX_LEN = 1024U ;
std : : vector < uchar > buffer ( BUFFER_MAX_LEN ) ;
uchar * beg = buffer . data ( ) ;
uchar * end = beg ;
while ( convertor ) {
convertor > > end ;
write ( beg , end ) ;
end = beg ;
}
return * this ;
}
bool flush ( )
{
/* controll line width, so on. */
size_t len = base64_encode ( src_beg , base64_buffer . data ( ) , 0U , src_cur - src_beg ) ;
if ( len = = 0U )
return false ;
src_cur = src_beg ;
{
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if ( file_storage - > fmt = = CV_STORAGE_FORMAT_JSON )
{
: : icvPuts ( file_storage , ( const char * ) base64_buffer . data ( ) ) ;
}
else
{
const char newline [ ] = " \n " ;
char space [ 80 ] ;
int ident = file_storage - > struct_indent ;
memset ( space , ' ' , static_cast < int > ( ident ) ) ;
space [ ident ] = ' \0 ' ;
: : icvPuts ( file_storage , space ) ;
: : icvPuts ( file_storage , ( const char * ) base64_buffer . data ( ) ) ;
: : icvPuts ( file_storage , newline ) ;
: : icvFSFlush ( file_storage ) ;
}
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}
return true ;
}
private :
/* because of Base64, we must keep its length a multiple of 3 */
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static const size_t BUFFER_LEN = 48U ;
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// static_assert(BUFFER_LEN % 3 == 0, "BUFFER_LEN is invalid");
private :
CvFileStorage * file_storage ;
std : : vector < uchar > binary_buffer ;
std : : vector < uchar > base64_buffer ;
uchar * src_beg ;
uchar * src_cur ;
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uchar * src_end ;
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} ;
class base64 : : RawDataToBinaryConvertor
{
public :
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RawDataToBinaryConvertor ( const void * src , int len , const std : : string & dt )
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: beg ( reinterpret_cast < const uchar * > ( src ) )
, cur ( 0 )
, end ( 0 )
{
CV_Assert ( src ) ;
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CV_Assert ( ! dt . empty ( ) ) ;
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CV_Assert ( len > 0 ) ;
/* calc step and to_binary_funcs */
make_to_binary_funcs ( dt ) ;
end = beg ;
cur = beg ;
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step = : : icvCalcStructSize ( dt . c_str ( ) , 0 ) ;
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end = beg + step * static_cast < size_t > ( len ) ;
}
inline RawDataToBinaryConvertor & operator > > ( uchar * & dst )
{
CV_DbgAssert ( * this ) ;
for ( size_t i = 0U , n = to_binary_funcs . size ( ) ; i < n ; i + + ) {
elem_to_binary_t & pack = to_binary_funcs [ i ] ;
pack . func ( cur + pack . offset , dst + pack . offset ) ;
}
cur + = step ;
dst + = step ;
return * this ;
}
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inline operator bool ( ) const
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{
return cur < end ;
}
private :
typedef size_t ( * to_binary_t ) ( const uchar * , uchar * ) ;
struct elem_to_binary_t
{
size_t offset ;
to_binary_t func ;
} ;
private :
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void make_to_binary_funcs ( const std : : string & dt )
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{
size_t cnt = 0 ;
size_t offset = 0 ;
char type = ' \0 ' ;
std : : istringstream iss ( dt ) ;
while ( ! iss . eof ( ) ) {
if ( ! ( iss > > cnt ) ) {
iss . clear ( ) ;
cnt = 1 ;
}
CV_Assert ( cnt > 0U ) ;
if ( ! ( iss > > type ) )
break ;
while ( cnt - - > 0 )
{
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elem_to_binary_t pack ;
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size_t size = 0 ;
switch ( type )
{
case ' u ' :
case ' c ' :
size = sizeof ( uchar ) ;
pack . func = to_binary < uchar > ;
break ;
case ' w ' :
case ' s ' :
size = sizeof ( ushort ) ;
pack . func = to_binary < ushort > ;
break ;
case ' i ' :
size = sizeof ( uint ) ;
pack . func = to_binary < uint > ;
break ;
case ' f ' :
size = sizeof ( float ) ;
pack . func = to_binary < float > ;
break ;
case ' d ' :
size = sizeof ( double ) ;
pack . func = to_binary < double > ;
break ;
case ' r ' :
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default : { CV_Assert ( ! " type not support " ) ; break ; }
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} ;
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offset = static_cast < size_t > ( cvAlign ( static_cast < int > ( offset ) , static_cast < int > ( size ) ) ) ;
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pack . offset = offset ;
offset + = size ;
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to_binary_funcs . push_back ( pack ) ;
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}
}
CV_Assert ( iss . eof ( ) ) ;
}
private :
const uchar * beg ;
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const uchar * cur ;
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const uchar * end ;
size_t step ;
std : : vector < elem_to_binary_t > to_binary_funcs ;
} ;
class base64 : : BinaryToCvSeqConvertor
{
public :
BinaryToCvSeqConvertor ( const void * src , int len , const char * dt )
: cur ( reinterpret_cast < const uchar * > ( src ) )
, beg ( reinterpret_cast < const uchar * > ( src ) )
, end ( reinterpret_cast < const uchar * > ( src ) )
{
CV_Assert ( src ) ;
CV_Assert ( dt ) ;
CV_Assert ( len > = 0 ) ;
/* calc binary_to_funcs */
make_funcs ( dt ) ;
functor_iter = binary_to_funcs . begin ( ) ;
step = : : icvCalcStructSize ( dt , 0 ) ;
end = beg + step * static_cast < size_t > ( len ) ;
}
inline BinaryToCvSeqConvertor & operator > > ( CvFileNode & dst )
{
CV_DbgAssert ( * this ) ;
/* get current data */
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union
{
uchar mem [ sizeof ( double ) ] ;
uchar u ;
char b ;
ushort w ;
short s ;
int i ;
float f ;
double d ;
} buffer ; /* for GCC -Wstrict-aliasing */
std : : memset ( buffer . mem , 0 , sizeof ( buffer ) ) ;
functor_iter - > func ( cur + functor_iter - > offset , buffer . mem ) ;
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/* set node::data */
switch ( functor_iter - > cv_type )
{
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case CV_8U : { dst . data . i = cv : : saturate_cast < int > ( buffer . u ) ; break ; }
case CV_8S : { dst . data . i = cv : : saturate_cast < int > ( buffer . b ) ; break ; }
case CV_16U : { dst . data . i = cv : : saturate_cast < int > ( buffer . w ) ; break ; }
case CV_16S : { dst . data . i = cv : : saturate_cast < int > ( buffer . s ) ; break ; }
case CV_32S : { dst . data . i = cv : : saturate_cast < int > ( buffer . i ) ; break ; }
case CV_32F : { dst . data . f = cv : : saturate_cast < double > ( buffer . f ) ; break ; }
case CV_64F : { dst . data . f = cv : : saturate_cast < double > ( buffer . d ) ; break ; }
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default : break ;
}
/* set node::tag */
switch ( functor_iter - > cv_type )
{
case CV_8U :
case CV_8S :
case CV_16U :
case CV_16S :
case CV_32S : { dst . tag = CV_NODE_INT ; /*std::printf("%i,", dst.data.i);*/ break ; }
case CV_32F :
case CV_64F : { dst . tag = CV_NODE_REAL ; /*std::printf("%.1f,", dst.data.f);*/ break ; }
default : break ;
}
/* check if end */
if ( + + functor_iter = = binary_to_funcs . end ( ) ) {
functor_iter = binary_to_funcs . begin ( ) ;
cur + = step ;
}
return * this ;
}
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inline operator bool ( ) const
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{
return cur < end ;
}
private :
typedef size_t ( * binary_to_t ) ( uchar const * , uchar * ) ;
struct binary_to_filenode_t
{
size_t cv_type ;
size_t offset ;
binary_to_t func ;
} ;
private :
void make_funcs ( const char * dt )
{
size_t cnt = 0 ;
char type = ' \0 ' ;
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size_t offset = 0 ;
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std : : istringstream iss ( dt ) ;
while ( ! iss . eof ( ) ) {
if ( ! ( iss > > cnt ) ) {
iss . clear ( ) ;
cnt = 1 ;
}
CV_Assert ( cnt > 0U ) ;
if ( ! ( iss > > type ) )
break ;
while ( cnt - - > 0 )
{
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binary_to_filenode_t pack ;
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/* set func and offset */
size_t size = 0 ;
switch ( type )
{
case ' u ' :
case ' c ' :
size = sizeof ( uchar ) ;
pack . func = binary_to < uchar > ;
break ;
case ' w ' :
case ' s ' :
size = sizeof ( ushort ) ;
pack . func = binary_to < ushort > ;
break ;
case ' i ' :
size = sizeof ( uint ) ;
pack . func = binary_to < uint > ;
break ;
case ' f ' :
size = sizeof ( float ) ;
pack . func = binary_to < float > ;
break ;
case ' d ' :
size = sizeof ( double ) ;
pack . func = binary_to < double > ;
break ;
case ' r ' :
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default : { CV_Assert ( ! " type not support " ) ; break ; }
} ; // need a better way for outputting error.
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offset = static_cast < size_t > ( cvAlign ( static_cast < int > ( offset ) , static_cast < int > ( size ) ) ) ;
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pack . offset = offset ;
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offset + = size ;
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/* set type */
switch ( type )
{
case ' u ' : { pack . cv_type = CV_8U ; break ; }
case ' c ' : { pack . cv_type = CV_8S ; break ; }
case ' w ' : { pack . cv_type = CV_16U ; break ; }
case ' s ' : { pack . cv_type = CV_16S ; break ; }
case ' i ' : { pack . cv_type = CV_32S ; break ; }
case ' f ' : { pack . cv_type = CV_32F ; break ; }
case ' d ' : { pack . cv_type = CV_64F ; break ; }
case ' r ' :
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default : { CV_Assert ( ! " type is not support " ) ; break ; }
} // need a better way for outputting error.
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binary_to_funcs . push_back ( pack ) ;
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}
}
CV_Assert ( iss . eof ( ) ) ;
CV_Assert ( binary_to_funcs . size ( ) ) ;
}
private :
const uchar * cur ;
const uchar * beg ;
const uchar * end ;
size_t step ;
std : : vector < binary_to_filenode_t > binary_to_funcs ;
std : : vector < binary_to_filenode_t > : : iterator functor_iter ;
} ;
/****************************************************************************
* Wapper
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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base64 : : Base64Writer : : Base64Writer ( : : CvFileStorage * fs )
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: emitter ( new Base64ContextEmitter ( fs ) )
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, data_type_string ( )
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{
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CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
}
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void base64 : : Base64Writer : : write ( const void * _data , size_t len , const char * dt )
{
check_dt ( dt ) ;
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RawDataToBinaryConvertor convertor ( _data , static_cast < int > ( len ) , data_type_string ) ;
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emitter - > write ( convertor ) ;
}
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template < typename _to_binary_convertor_t > inline
void base64 : : Base64Writer : : write ( _to_binary_convertor_t & convertor , const char * dt )
{
check_dt ( dt ) ;
emitter - > write ( convertor ) ;
}
base64 : : Base64Writer : : ~ Base64Writer ( )
{
delete emitter ;
}
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void base64 : : Base64Writer : : check_dt ( const char * dt )
{
if ( dt = = 0 )
CV_Error ( CV_StsBadArg , " Invalid \' dt \' . " ) ;
else if ( data_type_string . empty ( ) ) {
data_type_string = dt ;
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/* output header */
std : : string buffer = make_base64_header ( dt ) ;
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const uchar * beg = reinterpret_cast < const uchar * > ( buffer . data ( ) ) ;
const uchar * end = beg + buffer . size ( ) ;
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emitter - > write ( beg , end ) ;
} else if ( data_type_string ! = dt )
CV_Error ( CV_StsBadArg , " \' dt \' does not match. " ) ;
}
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void base64 : : make_seq ( void * binary , int elem_cnt , const char * dt , : : CvSeq & seq )
{
: : CvFileNode node ;
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node . info = 0 ;
BinaryToCvSeqConvertor convertor ( binary , elem_cnt , dt ) ;
while ( convertor ) {
convertor > > node ;
cvSeqPush ( & seq , & node ) ;
}
}
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void base64 : : cvWriteRawDataBase64 ( : : CvFileStorage * fs , const void * _data , int len , const char * dt )
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{
CV_Assert ( fs ) ;
CV_CHECK_OUTPUT_FILE_STORAGE ( fs ) ;
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check_if_write_struct_is_delayed ( fs , true ) ;
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if ( fs - > state_of_writing_base64 = = base64 : : fs : : Uncertain )
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{
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switch_to_Base64_state ( fs , base64 : : fs : : InUse ) ;
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}
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else if ( fs - > state_of_writing_base64 ! = base64 : : fs : : InUse )
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{
CV_Error ( CV_StsError , " Base64 should not be used at present. " ) ;
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}
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fs - > base64_writer - > write ( _data , len , dt ) ;
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}
/****************************************************************************
* Interface
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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CV_IMPL void cvWriteRawDataBase64 ( : : CvFileStorage * fs , const void * _data , int len , const char * dt )
{
: : base64 : : cvWriteRawDataBase64 ( fs , _data , len , dt ) ;
}
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2010-05-12 01:44:00 +08:00
/* End of file. */