| /*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*/ |
| |
| #ifndef _GRFMT_BASE_H_ |
| #define _GRFMT_BASE_H_ |
| |
| #if _MSC_VER >= 1200 |
| #pragma warning( disable: 4514 ) |
| #pragma warning( disable: 4711 ) |
| #pragma warning( disable: 4611 ) |
| #endif |
| |
| #include "utils.h" |
| #include "bitstrm.h" |
| |
| #define RBS_BAD_HEADER -125 /* invalid image header */ |
| #define BAD_HEADER_ERR() goto bad_header_exit |
| |
| #ifndef _MAX_PATH |
| #define _MAX_PATH 1024 |
| #endif |
| |
| |
| ///////////////////////////////// base class for readers //////////////////////// |
| class GrFmtReader |
| { |
| public: |
| |
| GrFmtReader( const char* filename ); |
| virtual ~GrFmtReader(); |
| |
| int GetWidth() { return m_width; }; |
| int GetHeight() { return m_height; }; |
| bool IsColor() { return m_iscolor; }; |
| int GetDepth() { return m_bit_depth; }; |
| void UseNativeDepth( bool yes ) { m_native_depth = yes; }; |
| bool IsFloat() { return m_isfloat; }; |
| |
| virtual bool ReadHeader() = 0; |
| virtual bool ReadData( uchar* data, int step, int color ) = 0; |
| virtual void Close(); |
| |
| protected: |
| |
| bool m_iscolor; |
| int m_width; // width of the image ( filled by ReadHeader ) |
| int m_height; // height of the image ( filled by ReadHeader ) |
| int m_bit_depth;// bit depth per channel (normally 8) |
| char m_filename[_MAX_PATH]; // filename |
| bool m_native_depth;// use the native bit depth of the image |
| bool m_isfloat; // is image saved as float or double? |
| }; |
| |
| |
| ///////////////////////////// base class for writers //////////////////////////// |
| class GrFmtWriter |
| { |
| public: |
| |
| GrFmtWriter( const char* filename ); |
| virtual ~GrFmtWriter() {}; |
| virtual bool IsFormatSupported( int depth ); |
| virtual bool WriteImage( const uchar* data, int step, |
| int width, int height, int depth, int channels ) = 0; |
| protected: |
| char m_filename[_MAX_PATH]; // filename |
| }; |
| |
| |
| ////////////////////////////// base class for filter factories ////////////////// |
| class GrFmtFilterFactory |
| { |
| public: |
| |
| GrFmtFilterFactory(); |
| virtual ~GrFmtFilterFactory() {}; |
| |
| const char* GetDescription() { return m_description; }; |
| int GetSignatureLength() { return m_sign_len; }; |
| virtual bool CheckFile( const char* filename ); |
| virtual bool CheckSignature( const char* signature ); |
| virtual bool CheckExtension( const char* filename ); |
| virtual GrFmtReader* NewReader( const char* filename ) = 0; |
| virtual GrFmtWriter* NewWriter( const char* filename ) = 0; |
| |
| protected: |
| const char* m_description; |
| // graphic format description in form: |
| // <Some textual description>( *.<extension1> [; *.<extension2> ...]). |
| // the textual description can not contain symbols '(', ')' |
| // and may be, some others. It is safe to use letters, digits and spaces only. |
| // e.g. "Targa (*.tga)", |
| // or "Portable Graphic Format (*.pbm;*.pgm;*.ppm)" |
| |
| int m_sign_len; // length of the signature of the format |
| const char* m_signature; // signature of the format |
| }; |
| |
| |
| /////////////////////////// list of graphic format filters /////////////////////////////// |
| |
| typedef void* ListPosition; |
| |
| class GrFmtFactoriesList |
| { |
| public: |
| |
| GrFmtFactoriesList(); |
| virtual ~GrFmtFactoriesList(); |
| void RemoveAll(); |
| bool AddFactory( GrFmtFilterFactory* factory ); |
| int FactoriesCount() { return m_curFactories; }; |
| ListPosition GetFirstFactoryPos(); |
| GrFmtFilterFactory* GetNextFactory( ListPosition& pos ); |
| virtual GrFmtReader* FindReader( const char* filename ); |
| virtual GrFmtWriter* FindWriter( const char* filename ); |
| |
| protected: |
| |
| GrFmtFilterFactory** m_factories; |
| int m_maxFactories; |
| int m_curFactories; |
| }; |
| |
| #endif/*_GRFMT_BASE_H_*/ |