mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
5529 lines
160 KiB
5529 lines
160 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. |
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of the copyright holders may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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#include "precomp.hpp" |
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#include <ctype.h> |
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#include <deque> |
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#include <iterator> |
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#define USE_ZLIB 1 |
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#ifdef __APPLE__ |
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# include "TargetConditionals.h" |
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# if (defined TARGET_OS_IPHONE && TARGET_OS_IPHONE) || (defined TARGET_IPHONE_SIMULATOR && TARGET_IPHONE_SIMULATOR) |
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# undef USE_ZLIB |
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# define USE_ZLIB 0 |
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typedef void* gzFile; |
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# endif |
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#endif |
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#if USE_ZLIB |
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# undef HAVE_UNISTD_H //to avoid redefinition |
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# ifndef _LFS64_LARGEFILE |
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# define _LFS64_LARGEFILE 0 |
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# endif |
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# ifndef _FILE_OFFSET_BITS |
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# define _FILE_OFFSET_BITS 0 |
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# endif |
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# include <zlib.h> |
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#endif |
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/****************************************************************************************\ |
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* Common macros and type definitions * |
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\****************************************************************************************/ |
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#define cv_isprint(c) ((uchar)(c) >= (uchar)' ') |
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#define cv_isprint_or_tab(c) ((uchar)(c) >= (uchar)' ' || (c) == '\t') |
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static inline bool cv_isalnum(char c) |
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{ |
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return ('0' <= c && c <= '9') || ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'); |
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} |
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static inline bool cv_isalpha(char c) |
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{ |
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return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'); |
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} |
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static inline bool cv_isdigit(char c) |
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{ |
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return '0' <= c && c <= '9'; |
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} |
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static inline bool cv_isspace(char c) |
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{ |
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return (9 <= c && c <= 13) || c == ' '; |
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} |
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static char* icv_itoa( int _val, char* buffer, int /*radix*/ ) |
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{ |
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const int radix = 10; |
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char* ptr=buffer + 23 /* enough even for 64-bit integers */; |
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unsigned val = abs(_val); |
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*ptr = '\0'; |
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do |
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{ |
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unsigned r = val / radix; |
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*--ptr = (char)(val - (r*radix) + '0'); |
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val = r; |
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} |
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while( val != 0 ); |
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if( _val < 0 ) |
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*--ptr = '-'; |
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return ptr; |
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} |
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cv::string cv::FileStorage::getDefaultObjectName(const string& _filename) |
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{ |
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static const char* stubname = "unnamed"; |
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const char* filename = _filename.c_str(); |
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const char* ptr2 = filename + _filename.size(); |
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const char* ptr = ptr2 - 1; |
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cv::AutoBuffer<char> name_buf(_filename.size()+1); |
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while( ptr >= filename && *ptr != '\\' && *ptr != '/' && *ptr != ':' ) |
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{ |
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if( *ptr == '.' && (!*ptr2 || strncmp(ptr2, ".gz", 3) == 0) ) |
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ptr2 = ptr; |
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ptr--; |
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} |
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ptr++; |
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if( ptr == ptr2 ) |
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CV_Error( CV_StsBadArg, "Invalid filename" ); |
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char* name = name_buf; |
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// name must start with letter or '_' |
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if( !cv_isalpha(*ptr) && *ptr!= '_' ){ |
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*name++ = '_'; |
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} |
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while( ptr < ptr2 ) |
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{ |
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char c = *ptr++; |
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if( !cv_isalnum(c) && c != '-' && c != '_' ) |
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c = '_'; |
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*name++ = c; |
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} |
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*name = '\0'; |
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name = name_buf; |
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if( strcmp( name, "_" ) == 0 ) |
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strcpy( name, stubname ); |
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return cv::string(name); |
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} |
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typedef struct CvGenericHash |
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{ |
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CV_SET_FIELDS() |
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int tab_size; |
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void** table; |
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} |
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CvGenericHash; |
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typedef CvGenericHash CvStringHash; |
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typedef struct CvFileMapNode |
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{ |
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CvFileNode value; |
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const CvStringHashNode* key; |
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struct CvFileMapNode* next; |
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} |
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CvFileMapNode; |
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typedef struct CvXMLStackRecord |
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{ |
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CvMemStoragePos pos; |
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CvString struct_tag; |
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int struct_indent; |
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int struct_flags; |
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} |
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CvXMLStackRecord; |
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#define CV_XML_OPENING_TAG 1 |
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#define CV_XML_CLOSING_TAG 2 |
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#define CV_XML_EMPTY_TAG 3 |
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#define CV_XML_HEADER_TAG 4 |
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#define CV_XML_DIRECTIVE_TAG 5 |
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//typedef void (*CvParse)( struct CvFileStorage* fs ); |
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typedef void (*CvStartWriteStruct)( struct CvFileStorage* fs, const char* key, |
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int struct_flags, const char* type_name ); |
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typedef void (*CvEndWriteStruct)( struct CvFileStorage* fs ); |
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typedef void (*CvWriteInt)( struct CvFileStorage* fs, const char* key, int value ); |
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typedef void (*CvWriteReal)( struct CvFileStorage* fs, const char* key, double value ); |
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typedef void (*CvWriteString)( struct CvFileStorage* fs, const char* key, |
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const char* value, int quote ); |
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typedef void (*CvWriteComment)( struct CvFileStorage* fs, const char* comment, int eol_comment ); |
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typedef void (*CvStartNextStream)( struct CvFileStorage* fs ); |
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typedef struct CvFileStorage |
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{ |
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int flags; |
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int fmt; |
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int write_mode; |
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int is_first; |
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CvMemStorage* memstorage; |
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CvMemStorage* dststorage; |
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CvMemStorage* strstorage; |
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CvStringHash* str_hash; |
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CvSeq* roots; |
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CvSeq* write_stack; |
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int struct_indent; |
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int struct_flags; |
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CvString struct_tag; |
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int space; |
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char* filename; |
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FILE* file; |
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gzFile gzfile; |
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char* buffer; |
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char* buffer_start; |
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char* buffer_end; |
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int wrap_margin; |
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int lineno; |
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int dummy_eof; |
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const char* errmsg; |
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char errmsgbuf[128]; |
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CvStartWriteStruct start_write_struct; |
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CvEndWriteStruct end_write_struct; |
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CvWriteInt write_int; |
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CvWriteReal write_real; |
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CvWriteString write_string; |
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CvWriteComment write_comment; |
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CvStartNextStream start_next_stream; |
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const char* strbuf; |
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size_t strbufsize, strbufpos; |
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std::deque<char>* outbuf; |
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bool is_opened; |
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} |
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CvFileStorage; |
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static void icvPuts( CvFileStorage* fs, const char* str ) |
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{ |
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if( fs->outbuf ) |
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std::copy(str, str + strlen(str), std::back_inserter(*fs->outbuf)); |
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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 |
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CV_Error( CV_StsError, "The storage is not opened" ); |
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} |
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static char* icvGets( CvFileStorage* fs, char* str, int maxCount ) |
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{ |
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if( fs->strbuf ) |
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{ |
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size_t i = fs->strbufpos, len = fs->strbufsize; |
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int j = 0; |
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const char* instr = fs->strbuf; |
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while( i < len && j < maxCount-1 ) |
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{ |
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char c = instr[i++]; |
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if( c == '\0' ) |
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break; |
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str[j++] = c; |
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if( c == '\n' ) |
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break; |
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} |
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str[j++] = '\0'; |
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fs->strbufpos = i; |
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return j > 1 ? str : 0; |
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} |
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if( fs->file ) |
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return fgets( str, maxCount, fs->file ); |
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#if USE_ZLIB |
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if( fs->gzfile ) |
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return gzgets( fs->gzfile, str, maxCount ); |
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#endif |
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CV_Error( CV_StsError, "The storage is not opened" ); |
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return 0; |
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} |
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static int icvEof( CvFileStorage* fs ) |
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{ |
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if( fs->strbuf ) |
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return fs->strbufpos >= fs->strbufsize; |
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if( fs->file ) |
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return feof(fs->file); |
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#if USE_ZLIB |
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if( fs->gzfile ) |
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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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{ |
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if( fs->file ) |
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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; |
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fs->gzfile = 0; |
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fs->strbuf = 0; |
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fs->strbufpos = 0; |
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fs->is_opened = false; |
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} |
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static void icvRewind( CvFileStorage* fs ) |
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{ |
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if( fs->file ) |
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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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} |
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#define CV_YML_INDENT 3 |
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#define CV_XML_INDENT 2 |
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#define CV_YML_INDENT_FLOW 1 |
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#define CV_FS_MAX_LEN 4096 |
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#define CV_FILE_STORAGE ('Y' + ('A' << 8) + ('M' << 16) + ('L' << 24)) |
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#define CV_IS_FILE_STORAGE(fs) ((fs) != 0 && (fs)->flags == CV_FILE_STORAGE) |
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#define CV_CHECK_FILE_STORAGE(fs) \ |
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{ \ |
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if( !CV_IS_FILE_STORAGE(fs) ) \ |
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CV_Error( (fs) ? CV_StsBadArg : CV_StsNullPtr, \ |
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"Invalid pointer to file storage" ); \ |
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} |
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#define CV_CHECK_OUTPUT_FILE_STORAGE(fs) \ |
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{ \ |
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CV_CHECK_FILE_STORAGE(fs); \ |
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if( !fs->write_mode ) \ |
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CV_Error( CV_StsError, "The file storage is opened for reading" ); \ |
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} |
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CV_IMPL const char* |
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cvAttrValue( const CvAttrList* attr, const char* attr_name ) |
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{ |
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while( attr && attr->attr ) |
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{ |
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int i; |
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for( i = 0; attr->attr[i*2] != 0; i++ ) |
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{ |
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if( strcmp( attr_name, attr->attr[i*2] ) == 0 ) |
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return attr->attr[i*2+1]; |
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} |
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attr = attr->next; |
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} |
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return 0; |
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} |
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static CvGenericHash* |
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cvCreateMap( int flags, int header_size, int elem_size, |
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CvMemStorage* storage, int start_tab_size ) |
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{ |
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if( header_size < (int)sizeof(CvGenericHash) ) |
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CV_Error( CV_StsBadSize, "Too small map header_size" ); |
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if( start_tab_size <= 0 ) |
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start_tab_size = 16; |
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CvGenericHash* map = (CvGenericHash*)cvCreateSet( flags, header_size, elem_size, storage ); |
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map->tab_size = start_tab_size; |
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start_tab_size *= sizeof(map->table[0]); |
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map->table = (void**)cvMemStorageAlloc( storage, start_tab_size ); |
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memset( map->table, 0, start_tab_size ); |
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return map; |
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} |
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#ifdef __GNUC__ |
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#define CV_PARSE_ERROR( errmsg ) \ |
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icvParseError( fs, __func__, (errmsg), __FILE__, __LINE__ ) |
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#else |
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#define CV_PARSE_ERROR( errmsg ) \ |
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icvParseError( fs, "", (errmsg), __FILE__, __LINE__ ) |
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#endif |
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static void |
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icvParseError( CvFileStorage* fs, const char* func_name, |
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const char* err_msg, const char* source_file, int source_line ) |
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{ |
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char buf[1<<10]; |
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sprintf( buf, "%s(%d): %s", fs->filename, fs->lineno, err_msg ); |
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cvError( CV_StsParseError, func_name, buf, source_file, source_line ); |
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} |
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static void |
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icvFSCreateCollection( CvFileStorage* fs, int tag, CvFileNode* collection ) |
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{ |
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if( CV_NODE_IS_MAP(tag) ) |
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{ |
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if( collection->tag != CV_NODE_NONE ) |
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{ |
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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 <_></_>)" ); |
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} |
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collection->data.map = cvCreateMap( 0, sizeof(CvFileNodeHash), |
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sizeof(CvFileMapNode), fs->memstorage, 16 ); |
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} |
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else |
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{ |
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CvSeq* seq; |
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seq = cvCreateSeq( 0, sizeof(CvSeq), sizeof(CvFileNode), fs->memstorage ); |
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// if <collection> contains some scalar element, add it to the newly created collection |
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if( CV_NODE_TYPE(collection->tag) != CV_NODE_NONE ) |
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cvSeqPush( seq, collection ); |
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collection->data.seq = seq; |
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} |
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collection->tag = tag; |
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cvSetSeqBlockSize( collection->data.seq, 8 ); |
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} |
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/*static void |
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icvFSReleaseCollection( CvSeq* seq ) |
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{ |
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if( seq ) |
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{ |
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int is_map = CV_IS_SET(seq); |
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CvSeqReader reader; |
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int i, total = seq->total; |
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cvStartReadSeq( seq, &reader, 0 ); |
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for( i = 0; i < total; i++ ) |
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{ |
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CvFileNode* node = (CvFileNode*)reader.ptr; |
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if( (!is_map || CV_IS_SET_ELEM( node )) && CV_NODE_IS_COLLECTION(node->tag) ) |
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{ |
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if( CV_NODE_IS_USER(node->tag) && node->info && node->data.obj.decoded ) |
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cvRelease( (void**)&node->data.obj.decoded ); |
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if( !CV_NODE_SEQ_IS_SIMPLE( node->data.seq )) |
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icvFSReleaseCollection( node->data.seq ); |
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} |
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CV_NEXT_SEQ_ELEM( seq->elem_size, reader ); |
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} |
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} |
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}*/ |
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static char* |
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icvFSDoResize( CvFileStorage* fs, char* ptr, int len ) |
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{ |
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char* new_ptr = 0; |
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int written_len = (int)(ptr - fs->buffer_start); |
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int new_size = (int)((fs->buffer_end - fs->buffer_start)*3/2); |
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new_size = MAX( written_len + len, new_size ); |
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new_ptr = (char*)cvAlloc( new_size + 256 ); |
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fs->buffer = new_ptr + (fs->buffer - fs->buffer_start); |
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if( written_len > 0 ) |
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memcpy( new_ptr, fs->buffer_start, written_len ); |
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fs->buffer_start = new_ptr; |
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fs->buffer_end = fs->buffer_start + new_size; |
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new_ptr += written_len; |
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return new_ptr; |
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} |
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inline char* icvFSResizeWriteBuffer( CvFileStorage* fs, char* ptr, int len ) |
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{ |
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return ptr + len < fs->buffer_end ? ptr : icvFSDoResize( fs, ptr, len ); |
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} |
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static char* |
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icvFSFlush( CvFileStorage* fs ) |
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{ |
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char* ptr = fs->buffer; |
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int indent; |
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if( ptr > fs->buffer_start + fs->space ) |
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{ |
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ptr[0] = '\n'; |
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ptr[1] = '\0'; |
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icvPuts( fs, fs->buffer_start ); |
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fs->buffer = fs->buffer_start; |
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} |
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indent = fs->struct_indent; |
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if( fs->space != indent ) |
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{ |
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if( fs->space < indent ) |
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memset( fs->buffer_start + fs->space, ' ', indent - fs->space ); |
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fs->space = indent; |
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} |
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ptr = fs->buffer = fs->buffer_start + fs->space; |
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return ptr; |
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} |
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static void |
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icvClose( CvFileStorage* fs, std::string* out ) |
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{ |
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if( out ) |
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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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{ |
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if( fs->write_stack ) |
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{ |
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while( fs->write_stack->total > 0 ) |
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cvEndWriteStruct(fs); |
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} |
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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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} |
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icvCloseFile(fs); |
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} |
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if( fs->outbuf && out ) |
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{ |
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out->resize(fs->outbuf->size()); |
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std::copy(fs->outbuf->begin(), fs->outbuf->end(), out->begin()); |
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} |
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} |
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/* closes file storage and deallocates buffers */ |
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CV_IMPL void |
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cvReleaseFileStorage( CvFileStorage** p_fs ) |
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{ |
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if( !p_fs ) |
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CV_Error( CV_StsNullPtr, "NULL double pointer to file storage" ); |
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if( *p_fs ) |
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{ |
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CvFileStorage* fs = *p_fs; |
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*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 ); |
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cvReleaseMemStorage( &fs->memstorage ); |
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if( fs->outbuf ) |
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delete fs->outbuf; |
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memset( fs, 0, sizeof(*fs) ); |
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cvFree( &fs ); |
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} |
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} |
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#define CV_HASHVAL_SCALE 33 |
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CV_IMPL CvStringHashNode* |
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cvGetHashedKey( CvFileStorage* fs, const char* str, int len, int create_missing ) |
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{ |
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CvStringHashNode* node = 0; |
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unsigned hashval = 0; |
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int i, tab_size; |
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if( !fs ) |
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return 0; |
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CvStringHash* map = fs->str_hash; |
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|
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if( len < 0 ) |
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{ |
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for( i = 0; str[i] != '\0'; i++ ) |
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hashval = hashval*CV_HASHVAL_SCALE + (unsigned char)str[i]; |
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len = i; |
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} |
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else for( i = 0; i < len; i++ ) |
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hashval = hashval*CV_HASHVAL_SCALE + (unsigned char)str[i]; |
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|
|
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 ); |
|
|
|
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 ); |
|
|
|
|
|
|
|
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 |
|
{ |
|
static const char* fmt = "%.16e"; |
|
char* ptr = buf; |
|
sprintf( buf, fmt, value ); |
|
if( *ptr == '+' || *ptr == '-' ) |
|
ptr++; |
|
for( ; cv_isdigit(*ptr); ptr++ ) |
|
; |
|
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 |
|
{ |
|
static const char* fmt = "%.8e"; |
|
char* ptr = buf; |
|
sprintf( buf, fmt, value ); |
|
if( *ptr == '+' || *ptr == '-' ) |
|
ptr++; |
|
for( ; cv_isdigit(*ptr); ptr++ ) |
|
; |
|
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" ); |
|
|
|
union{double d; uint64 i;} v; |
|
v.d = 0.; |
|
if( toupper(buf[1]) == 'I' && toupper(buf[2]) == 'N' && toupper(buf[3]) == 'F' ) |
|
v.i = (uint64)inf_hi << 32; |
|
else if( toupper(buf[1]) == 'N' && toupper(buf[2]) == 'A' && toupper(buf[3]) == 'N' ) |
|
v.i = (uint64)-1; |
|
else |
|
CV_PARSE_ERROR( "Bad format of floating-point constant" ); |
|
*value = v.d; |
|
|
|
*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; |
|
} |
|
|
|
if( *endptr == ptr || cv_isalpha(**endptr) ) |
|
icvProcessSpecialDouble( fs, ptr, &fval, endptr ); |
|
|
|
return fval; |
|
} |
|
|
|
|
|
/****************************************************************************************\ |
|
* 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; |
|
} |
|
|
|
|
|
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 ) |
|
{ |
|
char buf[CV_FS_MAX_LEN + 1024]; |
|
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; |
|
|
|
memset( node, 0, sizeof(*node) ); |
|
|
|
if( c == '!' ) // handle explicit type specification |
|
{ |
|
if( d == '!' || d == '^' ) |
|
{ |
|
ptr++; |
|
value_type |= CV_NODE_USER; |
|
} |
|
|
|
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; |
|
} |
|
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) ) |
|
{ |
|
if( value_type == CV_NODE_STRING && c != '\'' && c != '\"' ) |
|
goto force_string; |
|
if( value_type == CV_NODE_INT ) |
|
goto force_int; |
|
if( value_type == CV_NODE_REAL ) |
|
goto force_real; |
|
} |
|
} |
|
|
|
if( cv_isdigit(c) || |
|
((c == '-' || c == '+') && (cv_isdigit(d) || d == '.')) || |
|
(c == '.' && cv_isalnum(d))) // a number |
|
{ |
|
double fval; |
|
int ival; |
|
endptr = ptr + (c == '-' || c == '+'); |
|
while( cv_isdigit(*endptr) ) |
|
endptr++; |
|
if( *endptr == '.' || *endptr == 'e' ) |
|
{ |
|
force_real: |
|
fval = icv_strtod( fs, ptr, &endptr ); |
|
/*if( endptr == ptr || cv_isalpha(*endptr) ) |
|
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; |
|
if( cv_isalnum(c) || (c != '\'' && cv_isprint(c))) |
|
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; |
|
if( cv_isalnum(c) || (c != '\\' && c != '\"' && cv_isprint(c))) |
|
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'; |
|
else if( d == 'x' || (cv_isdigit(d) && d < '8') ) |
|
{ |
|
int val, is_hex = d == 'x'; |
|
c = ptr[3]; |
|
ptr[3] = '\0'; |
|
val = strtol( ptr + is_hex, &endptr, is_hex ? 8 : 16 ); |
|
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); |
|
int is_simple = 1; |
|
|
|
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 ); |
|
} |
|
ptr = icvYMLParseValue( fs, ptr, elem, struct_flags, new_min_indent ); |
|
if( CV_NODE_IS_MAP(struct_flags) ) |
|
elem->tag |= CV_NODE_NAMED; |
|
is_simple &= !CV_NODE_IS_COLLECTION(elem->tag); |
|
} |
|
node->data.seq->flags |= is_simple ? CV_NODE_SEQ_SIMPLE : 0; |
|
} |
|
else |
|
{ |
|
int indent, struct_flags, is_simple; |
|
|
|
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); |
|
is_simple = 1; |
|
|
|
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 ); |
|
} |
|
|
|
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; |
|
is_simple &= !CV_NODE_IS_COLLECTION(elem->tag); |
|
|
|
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 == '%' ) |
|
{ |
|
if( memcmp( ptr, "%YAML:", 6 ) == 0 && |
|
memcmp( ptr, "%YAML:1.", 8 ) != 0 ) |
|
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; |
|
} |
|
else if( cv_isalnum(*ptr) || *ptr=='_') |
|
{ |
|
if( !is_first ) |
|
CV_PARSE_ERROR( "The YAML streams must start with '---', except the first one" ); |
|
break; |
|
} |
|
else if( fs->dummy_eof ) |
|
break; |
|
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 ) |
|
{ |
|
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 ) |
|
{ |
|
if( !cv_isalpha(key[0]) && key[0] != '_' ) |
|
CV_Error( CV_StsBadArg, "Key must start with a letter or _" ); |
|
|
|
ptr = icvFSResizeWriteBuffer( fs, ptr, keylen ); |
|
|
|
for( i = 0; i < keylen; 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 += 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; |
|
|
|
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( CV_NODE_IS_FLOW(struct_flags) ) |
|
{ |
|
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] != '\'') ) |
|
{ |
|
int need_quote = quote || len == 0; |
|
data = buf; |
|
*data++ = '\"'; |
|
for( i = 0; i < len; i++ ) |
|
{ |
|
char c = str[i]; |
|
|
|
if( !need_quote && !cv_isalnum(c) && c != '_' && c != ' ' && c != '-' && |
|
c != '(' && c != ')' && c != '/' && c != '+' && c != ';' ) |
|
need_quote = 1; |
|
|
|
if( !cv_isalnum(c) && (!cv_isprint(c) || c == '\\' || c == '\'' || c == '\"') ) |
|
{ |
|
*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; |
|
} |
|
if( !need_quote && (cv_isdigit(str[0]) || |
|
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; |
|
} |
|
|
|
|
|
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; |
|
int have_space = 1, is_simple = 1; |
|
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; |
|
|
|
if( cv_isspace(c) || c == '\0' || (c == '<' && ptr[1] == '!' && ptr[2] == '-') ) |
|
{ |
|
ptr = icvXMLSkipSpaces( fs, ptr, 0 ); |
|
have_space = 1; |
|
c = *ptr; |
|
} |
|
|
|
d = ptr[1]; |
|
|
|
if( c =='<' || c == '\0' ) |
|
{ |
|
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; |
|
|
|
if( d == '/' || c == '\0' ) |
|
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 ); |
|
|
|
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; |
|
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 ); |
|
|
|
ptr = icvXMLParseValue( fs, ptr, elem, elem_type); |
|
if( !is_noname ) |
|
elem->tag |= CV_NODE_NAMED; |
|
is_simple &= !CV_NODE_IS_COLLECTION(elem->tag); |
|
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" ); |
|
have_space = 1; |
|
} |
|
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 && |
|
(cv_isdigit(c) || ((c == '-' || c == '+') && |
|
(cv_isdigit(d) || d == '.')) || (c == '.' && cv_isalnum(d))) ) // a number |
|
{ |
|
double fval; |
|
int ival; |
|
endptr = ptr + (c == '-' || c == '+'); |
|
while( cv_isdigit(*endptr) ) |
|
endptr++; |
|
if( *endptr == '.' || *endptr == 'e' ) |
|
{ |
|
fval = icv_strtod( fs, ptr, &endptr ); |
|
/*if( endptr == ptr || cv_isalpha(*endptr) ) |
|
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 |
|
char buf[CV_FS_MAX_LEN+16]; |
|
int i = 0, len, is_quoted = 0; |
|
elem->tag = CV_NODE_STRING; |
|
if( c == '\"' ) |
|
is_quoted = 1; |
|
else |
|
--ptr; |
|
|
|
for( ;; ) |
|
{ |
|
c = *++ptr; |
|
if( !cv_isalnum(c) ) |
|
{ |
|
if( c == '\"' ) |
|
{ |
|
if( !is_quoted ) |
|
CV_PARSE_ERROR( "Literal \" is not allowed within a string. Use "" ); |
|
++ptr; |
|
break; |
|
} |
|
else if( !cv_isprint(c) || c == '<' || (!is_quoted && cv_isspace(c))) |
|
{ |
|
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 == '&' ) |
|
{ |
|
if( *++ptr == '#' ) |
|
{ |
|
int val, base = 10; |
|
ptr++; |
|
if( *ptr == 'x' ) |
|
{ |
|
base = 16; |
|
ptr++; |
|
} |
|
val = (int)strtol( ptr, &endptr, base ); |
|
if( (unsigned)val > (unsigned)255 || |
|
!endptr || *endptr != ';' ) |
|
CV_PARSE_ERROR( "Invalid numeric value in the string" ); |
|
c = (char)val; |
|
} |
|
else |
|
{ |
|
endptr = ptr; |
|
do c = *++endptr; |
|
while( cv_isalnum(c) ); |
|
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; |
|
have_space = 0; |
|
} |
|
} |
|
|
|
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; |
|
|
|
if( *ptr == '\0' ) |
|
CV_PARSE_ERROR( "Preliminary end of the stream" ); |
|
|
|
if( *ptr != '<' ) |
|
CV_PARSE_ERROR( "Tag should start with \'<\'" ); |
|
|
|
ptr++; |
|
if( cv_isalnum(*ptr) || *ptr == '_' ) |
|
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; |
|
|
|
if( !cv_isalpha(*ptr) && *ptr != '_' ) |
|
CV_PARSE_ERROR( "Name should start with a letter or underscore" ); |
|
|
|
endptr = ptr - 1; |
|
do c = *++endptr; |
|
while( cv_isalnum(c) || c == '_' || c == '-' ); |
|
|
|
attrname = cvGetHashedKey( fs, ptr, (int)(endptr - ptr), 1 ); |
|
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; |
|
have_space = cv_isspace(c) || c == '\0'; |
|
|
|
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" ); |
|
}*/ |
|
// 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. |
|
/*{ |
|
const char* encoding = cvAttrValue( list, "encoding" ); |
|
if( encoding && strcmp( encoding, "ASCII" ) != 0 && |
|
strcmp( encoding, "UTF-8" ) != 0 && |
|
strcmp( encoding, "utf-8" ) != 0 ) |
|
CV_PARSE_ERROR( "Unsupported encoding" ); |
|
}*/ |
|
|
|
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 || |
|
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++ = '/'; |
|
} |
|
|
|
if( !cv_isalpha(key[0]) && key[0] != '_' ) |
|
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]; |
|
if( !cv_isalnum(c) && c != '_' && c != '-' ) |
|
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" ); |
|
|
|
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; |
|
} |
|
} |
|
|
|
|
|
static void |
|
icvXMLWriteScalar( CvFileStorage* fs, const char* key, const char* data, int len ) |
|
{ |
|
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 ); |
|
} |
|
} |
|
|
|
|
|
/****************************************************************************************\ |
|
* Common High-Level Functions * |
|
\****************************************************************************************/ |
|
|
|
CV_IMPL CvFileStorage* |
|
cvOpenFileStorage( const char* filename, CvMemStorage* dststorage, int flags, const char* encoding ) |
|
{ |
|
CvFileStorage* fs = 0; |
|
char* xml_buf = 0; |
|
int default_block_size = 1 << 18; |
|
bool append = (flags & 3) == CV_STORAGE_APPEND; |
|
bool mem = (flags & CV_STORAGE_MEMORY) != 0; |
|
bool write_mode = (flags & 3) != 0; |
|
bool isGZ = false; |
|
size_t fnamelen = 0; |
|
|
|
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); |
|
|
|
if( mem && append ) |
|
CV_Error( CV_StsBadFlag, "CV_STORAGE_APPEND and CV_STORAGE_MEMORY are not currently compatible" ); |
|
|
|
fs = (CvFileStorage*)cvAlloc( sizeof(*fs) ); |
|
memset( fs, 0, sizeof(*fs)); |
|
|
|
fs->memstorage = cvCreateMemStorage( default_block_size ); |
|
fs->dststorage = dststorage ? dststorage : fs->memstorage; |
|
|
|
fs->flags = CV_FILE_STORAGE; |
|
fs->write_mode = write_mode; |
|
|
|
if( !mem ) |
|
{ |
|
fs->filename = (char*)cvMemStorageAlloc( fs->memstorage, fnamelen+1 ); |
|
strcpy( fs->filename, filename ); |
|
|
|
char* dot_pos = strrchr(fs->filename, '.'); |
|
char compression = '\0'; |
|
|
|
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 ) |
|
CV_Error(CV_StsNotImplemented, "Appending data to compressed file is not implemented" ); |
|
isGZ = true; |
|
compression = dot_pos[3]; |
|
if( compression ) |
|
dot_pos[3] = '\0', fnamelen--; |
|
} |
|
|
|
if( !isGZ ) |
|
{ |
|
fs->file = fopen(fs->filename, !fs->write_mode ? "rt" : !append ? "wt" : "a+t" ); |
|
if( !fs->file ) |
|
goto _exit_; |
|
} |
|
else |
|
{ |
|
#if USE_ZLIB |
|
char mode[] = { fs->write_mode ? 'w' : 'r', 'b', compression ? compression : '3', '\0' }; |
|
fs->gzfile = gzopen(fs->filename, mode); |
|
if( !fs->gzfile ) |
|
goto _exit_; |
|
#else |
|
CV_Error(CV_StsNotImplemented, "There is no compressed file storage support in this configuration"); |
|
#endif |
|
} |
|
} |
|
|
|
fs->roots = 0; |
|
fs->struct_indent = 0; |
|
fs->struct_flags = 0; |
|
fs->wrap_margin = 71; |
|
|
|
if( fs->write_mode ) |
|
{ |
|
int fmt = flags & CV_STORAGE_FORMAT_MASK; |
|
|
|
if( mem ) |
|
fs->outbuf = new std::deque<char>; |
|
|
|
if( fmt == CV_STORAGE_FORMAT_AUTO && filename ) |
|
{ |
|
const char* dot_pos = filename + fnamelen - (isGZ ? 7 : 4); |
|
fs->fmt = (dot_pos >= filename && (memcmp( dot_pos, ".xml", 4) == 0 || |
|
memcmp(dot_pos, ".XML", 4) == 0 || memcmp(dot_pos, ".Xml", 4) == 0)) ? |
|
CV_STORAGE_FORMAT_XML : CV_STORAGE_FORMAT_YAML; |
|
} |
|
else |
|
fs->fmt = fmt != CV_STORAGE_FORMAT_AUTO ? fmt : CV_STORAGE_FORMAT_XML; |
|
|
|
// 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)) |
|
int buf_size = CV_FS_MAX_LEN*(fs->fmt == CV_STORAGE_FORMAT_XML ? 6 : 4) + 1024; |
|
|
|
if( append ) |
|
fseek( fs->file, 0, SEEK_END ); |
|
|
|
fs->write_stack = cvCreateSeq( 0, sizeof(CvSeq), fs->fmt == CV_STORAGE_FORMAT_XML ? |
|
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; |
|
if( fs->fmt == CV_STORAGE_FORMAT_XML ) |
|
{ |
|
size_t file_size = fs->file ? (size_t)ftell( fs->file ) : (size_t)0; |
|
fs->strstorage = cvCreateChildMemStorage( fs->memstorage ); |
|
if( !append || file_size == 0 ) |
|
{ |
|
if( encoding ) |
|
{ |
|
if( strcmp( encoding, "UTF-16" ) == 0 || |
|
strcmp( encoding, "utf-16" ) == 0 || |
|
strcmp( encoding, "Utf-16" ) == 0 ) |
|
CV_Error( CV_StsBadArg, "UTF-16 XML encoding is not supported! Use 8-bit encoding\n"); |
|
|
|
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" ); |
|
icvPuts( fs, "<opencv_storage>\n" ); |
|
} |
|
else |
|
{ |
|
int xml_buf_size = 1 << 10; |
|
char substr[] = "</opencv_storage>"; |
|
int last_occurence = -1; |
|
xml_buf_size = MIN(xml_buf_size, int(file_size)); |
|
fseek( fs->file, -xml_buf_size, SEEK_END ); |
|
xml_buf = (char*)cvAlloc( xml_buf_size+2 ); |
|
// find the last occurence of </opencv_storage> |
|
for(;;) |
|
{ |
|
int line_offset = ftell( fs->file ); |
|
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); |
|
} |
|
} |
|
if( last_occurence < 0 ) |
|
CV_Error( CV_StsError, "Could not find </opencv_storage> in the end of file.\n" ); |
|
icvCloseFile( fs ); |
|
fs->file = fopen( fs->filename, "r+t" ); |
|
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; |
|
} |
|
else |
|
{ |
|
if( !append ) |
|
icvPuts( fs, "%YAML:1.0\n" ); |
|
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; |
|
} |
|
} |
|
else |
|
{ |
|
if( mem ) |
|
{ |
|
fs->strbuf = filename; |
|
fs->strbufsize = fnamelen; |
|
} |
|
|
|
size_t buf_size = 1 << 20; |
|
const char* yaml_signature = "%YAML:"; |
|
char buf[16]; |
|
icvGets( fs, buf, sizeof(buf)-2 ); |
|
fs->fmt = strncmp( buf, yaml_signature, strlen(yaml_signature) ) == 0 ? |
|
CV_STORAGE_FORMAT_YAML : CV_STORAGE_FORMAT_XML; |
|
|
|
if( !isGZ ) |
|
{ |
|
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) ); |
|
} |
|
icvRewind(fs); |
|
|
|
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 ); |
|
if( fs->fmt == CV_STORAGE_FORMAT_XML ) |
|
icvXMLParse( fs ); |
|
else |
|
icvYMLParse( fs ); |
|
//cvSetErrMode( mode ); |
|
|
|
// release resources that we do not need anymore |
|
cvFree( &fs->buffer_start ); |
|
fs->buffer = fs->buffer_end = 0; |
|
} |
|
fs->is_opened = true; |
|
|
|
_exit_: |
|
if( fs ) |
|
{ |
|
if( cvGetErrStatus() < 0 || (!fs->file && !fs->gzfile && !fs->outbuf && !fs->strbuf) ) |
|
{ |
|
cvReleaseFileStorage( &fs ); |
|
} |
|
else if( !fs->write_mode ) |
|
{ |
|
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; |
|
} |
|
} |
|
|
|
cvFree( &xml_buf ); |
|
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); |
|
fs->start_write_struct( fs, key, struct_flags, type_name ); |
|
} |
|
|
|
|
|
CV_IMPL void |
|
cvEndWriteStruct( CvFileStorage* fs ) |
|
{ |
|
CV_CHECK_OUTPUT_FILE_STORAGE(fs); |
|
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]; |
|
|
|
if( cv_isdigit(c) ) |
|
{ |
|
int count = c - '0'; |
|
if( cv_isdigit(dt[k+1]) ) |
|
{ |
|
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; |
|
} |
|
|
|
|
|
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 ) |
|
{ |
|
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; |
|
|
|
if( !data0 ) |
|
CV_Error( CV_StsNullPtr, "Null data pointer" ); |
|
|
|
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: |
|
assert(0); |
|
return; |
|
} |
|
|
|
if( fs->fmt == CV_STORAGE_FORMAT_XML ) |
|
{ |
|
int buf_len = (int)strlen(ptr); |
|
icvXMLWriteScalar( fs, 0, ptr, buf_len ); |
|
} |
|
else |
|
icvYMLWrite( fs, 0, ptr ); |
|
} |
|
|
|
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; |
|
int i = 0, offset = 0, count = 0; |
|
|
|
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 ); |
|
|
|
for(;;) |
|
{ |
|
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: |
|
*(uchar*)data = CV_CAST_8U(ival); |
|
data++; |
|
break; |
|
case CV_8S: |
|
*(char*)data = CV_CAST_8S(ival); |
|
data++; |
|
break; |
|
case CV_16U: |
|
*(ushort*)data = CV_CAST_16U(ival); |
|
data += sizeof(ushort); |
|
break; |
|
case CV_16S: |
|
*(short*)data = CV_CAST_16S(ival); |
|
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: |
|
assert(0); |
|
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); |
|
*(uchar*)data = CV_CAST_8U(ival); |
|
data++; |
|
break; |
|
case CV_8S: |
|
ival = cvRound(fval); |
|
*(char*)data = CV_CAST_8S(ival); |
|
data++; |
|
break; |
|
case CV_16U: |
|
ival = cvRound(fval); |
|
*(ushort*)data = CV_CAST_16U(ival); |
|
data += sizeof(ushort); |
|
break; |
|
case CV_16S: |
|
ival = cvRound(fval); |
|
*(short*)data = CV_CAST_16S(ival); |
|
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: |
|
assert(0); |
|
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); |
|
} |
|
} |
|
|
|
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: |
|
fs->start_write_struct( fs, name, CV_NODE_TYPE(node->tag) + |
|
(CV_NODE_SEQ_IS_SIMPLE(node->data.seq) ? CV_NODE_FLOW : 0), |
|
node->info ? node->info->type_name : 0 ); |
|
icvWriteCollection( fs, node ); |
|
fs->end_write_struct( fs ); |
|
break; |
|
case CV_NODE_NONE: |
|
fs->start_write_struct( fs, name, CV_NODE_SEQ, 0 ); |
|
fs->end_write_struct( fs ); |
|
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 ) |
|
{ |
|
return CV_IS_MAT_HDR_Z(ptr); |
|
} |
|
|
|
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; |
|
|
|
assert( CV_IS_MAT_HDR_Z(mat) ); |
|
|
|
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); |
|
if( size.height > 0 && size.width > 0 && mat->data.ptr ) |
|
{ |
|
if( CV_IS_MAT_CONT(mat->type) ) |
|
{ |
|
size.width *= size.height; |
|
size.height = 1; |
|
} |
|
|
|
for( y = 0; y < size.height; y++ ) |
|
cvWriteRawData( fs, mat->data.ptr + (size_t)y*mat->step, size.width, dt ); |
|
} |
|
cvEndWriteStruct( fs ); |
|
cvEndWriteStruct( fs ); |
|
} |
|
|
|
|
|
static int |
|
icvFileNodeSeqLen( CvFileNode* node ) |
|
{ |
|
return CV_NODE_IS_COLLECTION(node->tag) ? node->data.seq->total : |
|
CV_NODE_TYPE(node->tag) != CV_NODE_NONE; |
|
} |
|
|
|
|
|
static void* |
|
icvReadMat( CvFileStorage* fs, CvFileNode* node ) |
|
{ |
|
void* ptr = 0; |
|
CvMat* mat; |
|
const char* dt; |
|
CvFileNode* data; |
|
int rows, cols, elem_type; |
|
|
|
rows = cvReadIntByName( fs, node, "rows", -1 ); |
|
cols = cvReadIntByName( fs, node, "cols", -1 ); |
|
dt = cvReadStringByName( fs, node, "dt", 0 ); |
|
|
|
if( rows < 0 || cols < 0 || !dt ) |
|
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" ); |
|
|
|
int nelems = icvFileNodeSeqLen( data ); |
|
if( nelems > 0 && nelems != rows*cols*CV_MAT_CN(elem_type) ) |
|
CV_Error( CV_StsUnmatchedSizes, |
|
"The matrix size does not match to the number of stored elements" ); |
|
|
|
if( nelems > 0 ) |
|
{ |
|
mat = cvCreateMat( rows, cols, elem_type ); |
|
cvReadRawData( fs, data, mat->data.ptr, dt ); |
|
} |
|
else if( rows == 0 && cols == 0 ) |
|
mat = cvCreateMatHeader( 0, 1, elem_type ); |
|
else |
|
mat = cvCreateMatHeader( rows, cols, elem_type ); |
|
|
|
ptr = mat; |
|
return ptr; |
|
} |
|
|
|
|
|
/******************************* CvMatND ******************************/ |
|
|
|
static int |
|
icvIsMatND( const void* ptr ) |
|
{ |
|
return CV_IS_MATND_HDR(ptr); |
|
} |
|
|
|
|
|
static void |
|
icvWriteMatND( CvFileStorage* fs, const char* name, |
|
const void* struct_ptr, CvAttrList /*attr*/ ) |
|
{ |
|
CvMatND* mat = (CvMatND*)struct_ptr; |
|
CvMatND stub; |
|
CvNArrayIterator iterator; |
|
int dims, sizes[CV_MAX_DIM]; |
|
char dt[16]; |
|
|
|
assert( CV_IS_MATND_HDR(mat) ); |
|
|
|
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 ); |
|
|
|
if( mat->dim[0].size > 0 && mat->data.ptr ) |
|
{ |
|
cvInitNArrayIterator( 1, (CvArr**)&mat, 0, &stub, &iterator ); |
|
|
|
do |
|
cvWriteRawData( fs, iterator.ptr[0], iterator.size.width, dt ); |
|
while( cvNextNArraySlice( &iterator )); |
|
} |
|
cvEndWriteStruct( fs ); |
|
cvEndWriteStruct( fs ); |
|
} |
|
|
|
|
|
static void* |
|
icvReadMatND( CvFileStorage* fs, CvFileNode* node ) |
|
{ |
|
void* ptr = 0; |
|
CvMatND* mat; |
|
const char* dt; |
|
CvFileNode* data; |
|
CvFileNode* sizes_node; |
|
int sizes[CV_MAX_DIM], dims, elem_type; |
|
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" ); |
|
|
|
|
|
|
|
for( total_size = CV_MAT_CN(elem_type), i = 0; i < dims; i++ ) |
|
total_size *= sizes[i]; |
|
|
|
int nelems = icvFileNodeSeqLen( data ); |
|
|
|
if( nelems > 0 && nelems != total_size ) |
|
CV_Error( CV_StsUnmatchedSizes, |
|
"The matrix size does not match to the number of stored elements" ); |
|
|
|
if( nelems > 0 ) |
|
{ |
|
mat = cvCreateMatND( dims, sizes, elem_type ); |
|
cvReadRawData( fs, data, mat->data.ptr, dt ); |
|
} |
|
else |
|
mat = cvCreateMatNDHeader( dims, sizes, elem_type ); |
|
|
|
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; |
|
int sizes[CV_MAX_DIM_HEAP], dims, elem_type, cn; |
|
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; |
|
|
|
if( dims <= 0 || dims > CV_MAX_DIM_HEAP ) |
|
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); |
|
int idx[CV_MAX_DIM_HEAP]; |
|
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); |
|
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" ); |
|
if( strcmp( data_order, "interleaved" ) != 0 ) |
|
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 ); |
|
|
|
strcpy(buf, ""); |
|
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"); |
|
|
|
cvWriteString( fs, "flags", buf + (buf[0] ? 1 : 0), 1 ); |
|
|
|
cvWriteInt( fs, "count", seq->total ); |
|
|
|
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" ); |
|
|
|
flags = CV_SEQ_MAGIC_VAL; |
|
|
|
if( cv_isdigit(flags_str[0]) ) |
|
{ |
|
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; |
|
|
|
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(...) |
|
{ |
|
} |
|
} |
|
} |
|
|
|
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 ) |
|
{ |
|
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 ); |
|
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 ); |
|
|
|
cvWriteString(fs, "flags", CV_IS_GRAPH_ORIENTED(graph) ? "oriented" : "", 1); |
|
|
|
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 ); |
|
if( fmt_pair_count > 2 && CV_ELEM_SIZE(fmt_pairs[2*2+1]) >= (int)sizeof(double)) |
|
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 ) |
|
CV_Error( CV_StsError, "Some of essential graph attributes are absent" ); |
|
|
|
flags = CV_SET_MAGIC_VAL + CV_GRAPH; |
|
|
|
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; |
|
|
|
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; |
|
} |
|
|
|
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 ); |
|
|
|
if( vtx_dt ) |
|
{ |
|
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') ) |
|
dst_edge_dt = edge_dt + 3 + cv_isdigit(edge_dt[2]); |
|
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 ) |
|
cvReadRawData( fs, header_node, (char*)graph + sizeof(CvGraph), header_dt ); |
|
|
|
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]; |
|
if( !cv_isalpha(c) && c != '_' ) |
|
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]; |
|
if( !cv_isalnum(c) && c != '-' && c != '_' ) |
|
CV_Error( CV_StsBadArg, |
|
"Type name should contain only letters, digits, - and _" ); |
|
} |
|
|
|
info = (CvTypeInfo*)malloc( sizeof(*info) + len + 1 ); |
|
|
|
*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; |
|
|
|
free( info ); |
|
} |
|
} |
|
|
|
|
|
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 ) |
|
break; |
|
|
|
return info; |
|
} |
|
|
|
|
|
CV_IMPL CvTypeInfo* |
|
cvTypeOf( const void* struct_ptr ) |
|
{ |
|
CvTypeInfo* info = 0; |
|
|
|
if( struct_ptr ) |
|
{ |
|
for( info = CvType::first; info != 0; info = info->next ) |
|
if( info->is_instance( struct_ptr )) |
|
break; |
|
} |
|
|
|
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" ); |
|
|
|
cv::string name = _name ? cv::string(_name) : cv::FileStorage::getDefaultObjectName(filename); |
|
|
|
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 ); |
|
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) |
|
{ |
|
if (real_name) |
|
{ |
|
*_real_name = (const char*)cvAlloc(strlen(real_name)); |
|
memcpy((void*)*_real_name, real_name, strlen(real_name)); |
|
} else { |
|
*_real_name = 0; |
|
} |
|
} |
|
|
|
return ptr; |
|
} |
|
|
|
|
|
///////////////////////// new C++ interface for CvFileStorage /////////////////////////// |
|
|
|
namespace cv |
|
{ |
|
|
|
static void getElemSize( const string& fmt, size_t& elemSize, size_t& cn ) |
|
{ |
|
const char* dt = fmt.c_str(); |
|
cn = 1; |
|
if( cv_isdigit(dt[0]) ) |
|
{ |
|
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; |
|
} |
|
|
|
FileStorage::FileStorage(const string& filename, int flags, const string& encoding) |
|
{ |
|
state = UNDEFINED; |
|
open( filename, flags, encoding ); |
|
} |
|
|
|
FileStorage::FileStorage(CvFileStorage* _fs) |
|
{ |
|
fs = Ptr<CvFileStorage>(_fs); |
|
state = _fs ? NAME_EXPECTED + INSIDE_MAP : UNDEFINED; |
|
} |
|
|
|
FileStorage::~FileStorage() |
|
{ |
|
while( structs.size() > 0 ) |
|
{ |
|
cvEndWriteStruct(fs); |
|
structs.pop_back(); |
|
} |
|
} |
|
|
|
bool FileStorage::open(const string& filename, int flags, const string& encoding) |
|
{ |
|
release(); |
|
fs = Ptr<CvFileStorage>(cvOpenFileStorage( filename.c_str(), 0, flags, |
|
!encoding.empty() ? encoding.c_str() : 0)); |
|
bool ok = isOpened(); |
|
state = ok ? NAME_EXPECTED + INSIDE_MAP : UNDEFINED; |
|
return ok; |
|
} |
|
|
|
bool FileStorage::isOpened() const |
|
{ |
|
return !fs.empty() && fs.obj->is_opened; |
|
} |
|
|
|
void FileStorage::release() |
|
{ |
|
fs.release(); |
|
structs.clear(); |
|
state = UNDEFINED; |
|
} |
|
|
|
string FileStorage::releaseAndGetString() |
|
{ |
|
string buf; |
|
buf.reserve(16); // HACK: Work around for compiler bug |
|
if( fs.obj && fs.obj->outbuf ) |
|
icvClose(fs.obj, &buf); |
|
|
|
release(); |
|
return buf; |
|
} |
|
|
|
FileNode FileStorage::root(int streamidx) const |
|
{ |
|
return isOpened() ? FileNode(fs, cvGetRootFileNode(fs, streamidx)) : FileNode(); |
|
} |
|
|
|
FileStorage& operator << (FileStorage& fs, const string& str) |
|
{ |
|
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 ); |
|
fs.elname = string(); |
|
} |
|
else if( fs.state == NAME_EXPECTED + INSIDE_MAP ) |
|
{ |
|
if( !cv_isalpha(*_str) ) |
|
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 ); |
|
fs.elname = string(); |
|
} |
|
else |
|
{ |
|
write( fs, fs.elname, (_str[0] == '\\' && (_str[1] == '{' || _str[1] == '}' || |
|
_str[1] == '[' || _str[1] == ']')) ? string(_str+1) : str ); |
|
if( fs.state == INSIDE_MAP + VALUE_EXPECTED ) |
|
fs.state = INSIDE_MAP + NAME_EXPECTED; |
|
} |
|
} |
|
else |
|
CV_Error( CV_StsError, "Invalid fs.state" ); |
|
return fs; |
|
} |
|
|
|
|
|
void FileStorage::writeRaw( const string& fmt, const uchar* vec, size_t len ) |
|
{ |
|
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()); |
|
} |
|
|
|
|
|
void FileStorage::writeObj( const string& name, const void* obj ) |
|
{ |
|
if( !isOpened() ) |
|
return; |
|
cvWrite( fs, name.size() > 0 ? name.c_str() : 0, obj ); |
|
} |
|
|
|
|
|
FileNode FileStorage::operator[](const string& nodename) const |
|
{ |
|
return FileNode(fs, cvGetFileNodeByName(fs, 0, nodename.c_str())); |
|
} |
|
|
|
FileNode FileStorage::operator[](const char* nodename) const |
|
{ |
|
return FileNode(fs, cvGetFileNodeByName(fs, 0, nodename)); |
|
} |
|
|
|
FileNode FileNode::operator[](const string& nodename) const |
|
{ |
|
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(); |
|
} |
|
|
|
string FileNode::name() const |
|
{ |
|
const char* str; |
|
return !node || (str = cvGetFileNodeName(node)) == 0 ? string() : string(str); |
|
} |
|
|
|
void* FileNode::readObj() const |
|
{ |
|
if( !fs || !node ) |
|
return 0; |
|
return cvRead( (CvFileStorage*)fs, (CvFileNode*)node ); |
|
} |
|
|
|
FileNodeIterator::FileNodeIterator() |
|
{ |
|
fs = 0; |
|
container = 0; |
|
reader.ptr = 0; |
|
remaining = 0; |
|
} |
|
|
|
FileNodeIterator::FileNodeIterator(const CvFileStorage* _fs, |
|
const CvFileNode* _node, size_t _ofs) |
|
{ |
|
if( _fs && _node && CV_NODE_TYPE(_node->tag) != CV_NODE_NONE ) |
|
{ |
|
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) ) |
|
{ |
|
cvStartReadSeq( _node->data.seq, &reader ); |
|
remaining = FileNode(_fs, _node).size(); |
|
} |
|
else |
|
{ |
|
reader.ptr = (schar*)_node; |
|
reader.seq = 0; |
|
remaining = 1; |
|
} |
|
(*this) += (int)_ofs; |
|
} |
|
else |
|
{ |
|
fs = 0; |
|
container = 0; |
|
reader.ptr = 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 ) |
|
CV_NEXT_SEQ_ELEM( reader.seq->elem_size, reader ); |
|
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 ) |
|
CV_PREV_SEQ_ELEM( reader.seq->elem_size, reader ); |
|
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 ) |
|
cvSetSeqReaderPos( &reader, ofs, 1 ); |
|
return *this; |
|
} |
|
|
|
FileNodeIterator& FileNodeIterator::operator -= (int ofs) |
|
{ |
|
return operator += (-ofs); |
|
} |
|
|
|
|
|
FileNodeIterator& FileNodeIterator::readRaw( const string& fmt, uchar* vec, size_t maxCount ) |
|
{ |
|
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); |
|
|
|
if( reader.seq ) |
|
{ |
|
cvReadRawDataSlice( fs, &reader, (int)count, vec, fmt.c_str() ); |
|
remaining -= count*cn; |
|
} |
|
else |
|
{ |
|
cvReadRawData( fs, container, vec, fmt.c_str() ); |
|
remaining = 0; |
|
} |
|
} |
|
return *this; |
|
} |
|
|
|
|
|
void write( FileStorage& fs, const string& name, int value ) |
|
{ cvWriteInt( *fs, name.size() ? name.c_str() : 0, value ); } |
|
|
|
void write( FileStorage& fs, const string& name, float value ) |
|
{ cvWriteReal( *fs, name.size() ? name.c_str() : 0, value ); } |
|
|
|
void write( FileStorage& fs, const string& name, double value ) |
|
{ cvWriteReal( *fs, name.size() ? name.c_str() : 0, value ); } |
|
|
|
void write( FileStorage& fs, const string& name, const string& value ) |
|
{ 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 ); } |
|
|
|
void writeScalar(FileStorage& fs, const string& value ) |
|
{ cvWriteString( *fs, 0, value.c_str() ); } |
|
|
|
|
|
void write( FileStorage& fs, const string& name, const Mat& value ) |
|
{ |
|
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 ); |
|
} |
|
} |
|
|
|
// TODO: the 4 functions below need to be implemented more efficiently |
|
void write( FileStorage& fs, const string& name, const SparseMat& value ) |
|
{ |
|
Ptr<CvSparseMat> mat = (CvSparseMat*)value; |
|
cvWrite( *fs, name.size() ? name.c_str() : 0, mat ); |
|
} |
|
|
|
|
|
WriteStructContext::WriteStructContext(FileStorage& _fs, const string& name, |
|
int flags, const string& typeName) : fs(&_fs) |
|
{ |
|
cvStartWriteStruct(**fs, !name.empty() ? name.c_str() : 0, flags, |
|
!typeName.empty() ? typeName.c_str() : 0); |
|
} |
|
|
|
WriteStructContext::~WriteStructContext() { cvEndWriteStruct(**fs); } |
|
|
|
|
|
void read( const FileNode& node, Mat& mat, const Mat& default_mat ) |
|
{ |
|
if( node.empty() ) |
|
{ |
|
default_mat.copyTo(mat); |
|
return; |
|
} |
|
void* obj = cvRead((CvFileStorage*)node.fs, (CvFileNode*)*node); |
|
if(CV_IS_MAT_HDR_Z(obj)) |
|
{ |
|
Mat((const CvMat*)obj).copyTo(mat); |
|
cvReleaseMat((CvMat**)&obj); |
|
} |
|
else if(CV_IS_MATND_HDR(obj)) |
|
{ |
|
Mat((const CvMatND*)obj).copyTo(mat); |
|
cvReleaseMatND((CvMatND**)&obj); |
|
} |
|
else |
|
{ |
|
cvRelease(&obj); |
|
CV_Error(CV_StsBadArg, "Unknown array type"); |
|
} |
|
} |
|
|
|
void read( const FileNode& node, SparseMat& mat, const SparseMat& default_mat ) |
|
{ |
|
if( node.empty() ) |
|
{ |
|
default_mat.copyTo(mat); |
|
return; |
|
} |
|
Ptr<CvSparseMat> m = (CvSparseMat*)cvRead((CvFileStorage*)node.fs, (CvFileNode*)*node); |
|
CV_Assert(CV_IS_SPARSE_MAT(m.obj)); |
|
SparseMat(m).copyTo(mat); |
|
} |
|
|
|
} |
|
|
|
/* End of file. */
|
|
|