+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-//
-// Loading and saving IPL images.
-//
-
-#include "_highgui.h"
-#include "grfmts.h"
-
-#if 0
-/****************************************************************************************\
-* Path class (list of search folders) *
-\****************************************************************************************/
-
-class CvFilePath
-{
-public:
- CvFilePath();
- ~CvFilePath();
-
- // preprocess folder or file name - calculate its length,
- // check for invalid symbols in the name and substitute
- // all backslashes with simple slashes.
- // the result is put into the specified buffer
- static int Preprocess( const char* filename, char* buffer );
-
- // add folder to the path
- bool Add( const char* path );
-
- // clear the path
- void Clear();
-
- // return the path - string, where folders are separated by ';'
- const char* Get() const { return m_path; };
-
- // find the file in the path
- const char* Find( const char* filename, char* buffer ) const;
-
- // return the first folder from the path
- // the returned string is not terminated by '\0'!!!
- // its length is returned via len parameter
- const char* First( int& len ) const;
-
- // return the folder, next in the path after the specified folder.
- // see also note to First() method
- const char* Next( const char* folder, int& len ) const;
-
-protected:
-
- char* m_path;
- int m_maxsize;
- int m_len;
-};
-
-
-void CvFilePath::Clear()
-{
- delete[] m_path;
- m_maxsize = m_len = 0;
-}
-
-
-CvFilePath::CvFilePath()
-{
- m_path = 0;
- m_maxsize = m_len = 0;
-}
-
-
-CvFilePath::~CvFilePath()
-{
- Clear();
-}
-
-
-bool CvFilePath::Add( const char* path )
-{
- char buffer[_MAX_PATH + 1];
- int len = Preprocess( path, buffer );
-
- if( len < 0 )
- return false;
-
- if( m_len + len + 3 // +1 for one more ';',
- // another +1 for possible additional '/',
- // and the last +1 is for '\0'
- > m_maxsize )
- {
- int new_size = (m_len + len + 3 + 1023) & -1024;
- char* new_path = new char[new_size];
-
- if( m_path )
- {
- memcpy( new_path, m_path, m_len );
- delete[] m_path;
- }
-
- m_path = new_path;
- m_maxsize = new_size;
- }
-
- m_path[m_len++] = ';';
- memcpy( m_path + m_len, buffer, len );
- m_len += len;
-
- if( m_path[m_len] != '/' )
- m_path[m_len++] = '/';
-
- m_path[m_len] = '\0'; // '\0' is not counted in m_len.
-
- return true;
-}
-
-
-const char* CvFilePath::First( int& len ) const
-{
- const char* path = (const char*)(m_path ? m_path : "");
- const char* path_end = path;
-
- while( *path_end && *path_end != ';' )
- path_end++;
-
- len = path_end - path;
- return path;
-}
-
-
-const char* CvFilePath::Next( const char* folder, int& len ) const
-{
- if( !folder || folder < m_path || folder >= m_path + m_len )
- return 0;
-
- folder = strchr( folder, ';' );
- if( folder )
- {
- const char* folder_end = ++folder;
- while( *folder_end && *folder_end != ';' )
- folder_end++;
-
- len = folder_end - folder;
- }
-
- return folder;
-}
-
-
-const char* CvFilePath::Find( const char* filename, char* buffer ) const
-{
- char path0[_MAX_PATH + 1];
- int len = Preprocess( filename, path0 );
- int folder_len = 0;
- const char* folder = First( folder_len );
- char* name_only = 0;
- char* name = path0;
- FILE* f = 0;
-
- if( len < 0 )
- return 0;
-
- do
- {
- if( folder_len + len <= _MAX_PATH )
- {
- memcpy( buffer, folder, folder_len );
- strcpy( buffer + folder_len, name );
-
- f = fopen( buffer, "rb" );
- if( f )
- break;
- }
-
- if( name != name_only )
- {
- name_only = strrchr( path0, '/' );
- if( !name_only )
- name_only = path0;
- else
- name_only++;
- len = strlen( name_only );
- name = name_only;
- }
- }
- while( (folder = Next( folder, folder_len )) != 0 );
-
- filename = 0;
-
- if( f )
- {
- filename = (const char*)buffer;
- fclose(f);
- }
-
- return filename;
-}
-
-
-int CvFilePath::Preprocess( const char* str, char* buffer )
-{
- int i;
-
- if( !str || !buffer )
- return -1;
-
- for( i = 0; i <= _MAX_PATH; i++ )
- {
- buffer[i] = str[i];
-
- if( isalnum(str[i])) // fast check to skip most of characters
- continue;
-
- if( str[i] == '\0' )
- break;
-
- if( str[i] == '\\' ) // convert back slashes to simple slashes
- // (for Win32-*NIX compatibility)
- buffer[i] = '/';
-
- if (str[i] == '*' || str[i] == '?' || str[i] == '\"' ||
- str[i] == '>' || str[i] == '<' ||
- str[i] == ';' || /* used as a separator in the path */
- #ifndef WIN32
- str[i] == ',' || str[i] == '%' ||
- #endif
- str[i] == '|')
- return -1;
- }
-
- return i <= _MAX_PATH ? i : -1;
-}
-#endif
-
-/****************************************************************************************\
-* Image Readers & Writers Class *
-\****************************************************************************************/
-
-class CvImageFilters
-{
-public:
-
- CvImageFilters();
- ~CvImageFilters();
-
- GrFmtReader* FindReader( const char* filename ) const;
- GrFmtWriter* FindWriter( const char* filename ) const;
-
- //const CvFilePath& Path() const { return (const CvFilePath&)m_path; };
- //CvFilePath& Path() { return m_path; };
-
-protected:
-
- GrFmtFactoriesList* m_factories;
-};
-
-
-CvImageFilters::CvImageFilters()
-{
- m_factories = new GrFmtFactoriesList;
-
-#ifdef HAVE_IMAGEIO
- m_factories->AddFactory( new GrFmtImageIO() );
-#endif
- m_factories->AddFactory( new GrFmtBmp() );
- m_factories->AddFactory( new GrFmtJpeg() );
- m_factories->AddFactory( new GrFmtSunRaster() );
- m_factories->AddFactory( new GrFmtPxM() );
- m_factories->AddFactory( new GrFmtTiff() );
-#ifdef HAVE_PNG
- m_factories->AddFactory( new GrFmtPng() );
-#endif
-#ifdef HAVE_JASPER
- m_factories->AddFactory( new GrFmtJpeg2000() );
-#endif
-#ifdef HAVE_ILMIMF
- m_factories->AddFactory( new GrFmtExr() );
-#endif
-}
-
-
-CvImageFilters::~CvImageFilters()
-{
- delete m_factories;
-}
-
-
-GrFmtReader* CvImageFilters::FindReader( const char* filename ) const
-{
- return m_factories->FindReader( filename );
-}
-
-
-GrFmtWriter* CvImageFilters::FindWriter( const char* filename ) const
-{
- return m_factories->FindWriter( filename );
-}
-
-/****************************************************************************************\
-* HighGUI loading & saving function implementation *
-\****************************************************************************************/
-
-static int icvSetCXCOREBindings(void)
-{
- return CV_SET_IMAGE_IO_FUNCTIONS();
-}
-
-int cxcore_bindings_initialized = icvSetCXCOREBindings();
-
-// global image I/O filters
-static CvImageFilters g_Filters;
-
-#if 0
-CV_IMPL void
-cvAddSearchPath( const char* path )
-{
- CV_FUNCNAME( "cvAddSearchPath" );
-
- __BEGIN__;
-
- if( !path || strlen(path) == 0 )
- CV_ERROR( CV_StsNullPtr, "Null path" );
-
- g_Filters.AddPath( path );
-
- __END__;
-}
-#endif
-
-CV_IMPL int
-cvHaveImageReader( const char* filename )
-{
- GrFmtReader* reader = g_Filters.FindReader( filename );
- if( reader ) {
- delete reader;
- return 1;
- }
- return 0;
-}
-
-CV_IMPL int cvHaveImageWriter( const char* filename )
-{
- GrFmtWriter* writer = g_Filters.FindWriter( filename );
- if( writer ) {
- delete writer;
- return 1;
- }
- return 0;
-}
-
-static void*
-icvLoadImage( const char* filename, int flags, bool load_as_matrix )
-{
- GrFmtReader* reader = 0;
- IplImage* image = 0;
- CvMat hdr, *matrix = 0;
- int depth = 8;
-
- CV_FUNCNAME( "cvLoadImage" );
-
- __BEGIN__;
-
- CvSize size;
- int iscolor;
- int cn;
-
- if( !filename || strlen(filename) == 0 )
- CV_ERROR( CV_StsNullPtr, "null filename" );
-
- reader = g_Filters.FindReader( filename );
- if( !reader )
- EXIT;
-
- if( !reader->ReadHeader() )
- EXIT;
-
- size.width = reader->GetWidth();
- size.height = reader->GetHeight();
-
- if( flags == -1 )
- iscolor = reader->IsColor();
- else
- {
- if( (flags & CV_LOAD_IMAGE_COLOR) != 0 ||
- ((flags & CV_LOAD_IMAGE_ANYCOLOR) != 0 && reader->IsColor()) )
- iscolor = 1;
- else
- iscolor = 0;
-
- if( (flags & CV_LOAD_IMAGE_ANYDEPTH) != 0 )
- {
- reader->UseNativeDepth(true);
- depth = reader->GetDepth();
- }
- }
-
- cn = iscolor ? 3 : 1;
-
- if( load_as_matrix )
- {
- int type;
- if(reader->IsFloat() && depth != 8)
- type = CV_32F;
- else
- type = ( depth <= 8 ) ? CV_8U : ( depth <= 16 ) ? CV_16U : CV_32S;
- CV_CALL( matrix = cvCreateMat( size.height, size.width, CV_MAKETYPE(type, cn) ));
- }
- else
- {
- int type;
- if(reader->IsFloat() && depth != 8)
- type = IPL_DEPTH_32F;
- else
- type = ( depth <= 8 ) ? IPL_DEPTH_8U : ( depth <= 16 ) ? IPL_DEPTH_16U : IPL_DEPTH_32S;
- CV_CALL( image = cvCreateImage( size, type, cn ));
- matrix = cvGetMat( image, &hdr );
- }
-
- if( !reader->ReadData( matrix->data.ptr, matrix->step, iscolor ))
- {
- if( load_as_matrix )
- cvReleaseMat( &matrix );
- else
- cvReleaseImage( &image );
- EXIT;
- }
-
- __END__;
-
- delete reader;
-
- if( cvGetErrStatus() < 0 )
- {
- if( load_as_matrix )
- cvReleaseMat( &matrix );
- else
- cvReleaseImage( &image );
- }
-
- return load_as_matrix ? (void*)matrix : (void*)image;
-}
-
-
-CV_IMPL IplImage*
-cvLoadImage( const char* filename, int iscolor )
-{
- return (IplImage*)icvLoadImage( filename, iscolor, false );
-}
-
-CV_IMPL CvMat*
-cvLoadImageM( const char* filename, int iscolor )
-{
- return (CvMat*)icvLoadImage( filename, iscolor, true );
-}
-
-
-CV_IMPL int
-cvSaveImage( const char* filename, const CvArr* arr )
-{
- int origin = 0;
- GrFmtWriter* writer = 0;
- CvMat *temp = 0, *temp2 = 0;
-
- CV_FUNCNAME( "cvSaveImage" );
-
- __BEGIN__;
-
- CvMat stub, *image;
- int channels, ipl_depth;
-
- if( !filename || strlen(filename) == 0 )
- CV_ERROR( CV_StsNullPtr, "null filename" );
-
- CV_CALL( image = cvGetMat( arr, &stub ));
-
- if( CV_IS_IMAGE( arr ))
- origin = ((IplImage*)arr)->origin;
-
- channels = CV_MAT_CN( image->type );
- if( channels != 1 && channels != 3 && channels != 4 )
- CV_ERROR( CV_BadNumChannels, "" );
-
- writer = g_Filters.FindWriter( filename );
- if( !writer )
- CV_ERROR( CV_StsError, "could not find a filter for the specified extension" );
-
- if( origin )
- {
- CV_CALL( temp = cvCreateMat(image->rows, image->cols, image->type) );
- CV_CALL( cvFlip( image, temp, 0 ));
- image = temp;
- }
-
- ipl_depth = cvCvToIplDepth(image->type);
-
- if( !writer->IsFormatSupported(ipl_depth) )
- {
- assert( writer->IsFormatSupported(IPL_DEPTH_8U) );
- CV_CALL( temp2 = cvCreateMat(image->rows,
- image->cols, CV_MAKETYPE(CV_8U,channels)) );
- CV_CALL( cvConvertImage( image, temp2 ));
- image = temp2;
- ipl_depth = IPL_DEPTH_8U;
- }
-
- if( !writer->WriteImage( image->data.ptr, image->step, image->width,
- image->height, ipl_depth, channels ))
- CV_ERROR( CV_StsError, "could not save the image" );
-
- __END__;
-
- delete writer;
- cvReleaseMat( &temp );
- cvReleaseMat( &temp2 );
-
- return cvGetErrStatus() >= 0;
-}
-
-/* End of file. */
projects / opencv / blobdiff