135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
// ==========================================================================
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// Class Specification : COXJPEGCodec
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// ==========================================================================
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// Header file : OXJPGCod.h
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// Version: 9.3
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// This software along with its related components, documentation and files ("The Libraries")
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// is © 1994-2007 The Code Project (1612916 Ontario Limited) and use of The Libraries is
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// governed by a software license agreement ("Agreement"). Copies of the Agreement are
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// available at The Code Project (www.codeproject.com), as part of the package you downloaded
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// to obtain this file, or directly from our office. For a copy of the license governing
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// this software, you may contact us at legalaffairs@codeproject.com, or by calling 416-849-8900.
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// //////////////////////////////////////////////////////////////////////////
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// Properties:
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// NO Abstract class (does not have any objects)
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// YES Derived from CObject
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// NO Is a Cwnd.
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// NO Two stage creation (constructor & Create())
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// NO Has a message map
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// NO Needs a resource (template)
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// NO Persistent objects (saveable on disk)
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// YES Uses exceptions
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// //////////////////////////////////////////////////////////////////////////
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// Desciption :
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// This class is the base class for compressionn decompression and translation of
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// JPEG images. It some global error handling and progression callbacks.
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// method
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// Remark:
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//
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// Prerequisites (necessary conditions):
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __JPEGCODEC_H__
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#define __JPEGCODEC_H__
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#if _MSC_VER >= 1000
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#pragma once
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#endif // _MSC_VER >= 1000
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#include "OXDllExt.h"
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extern "C"
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{
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#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */
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#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */
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#include "jversion.h"
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#include "jinclude.h"
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#include "jpeglib.h"
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#include "jerror.h" /* get library error codes too */
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#include "cderror.h" /* get application-specific error codes */
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}
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enum EDiscreteCosTransf
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{
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DC_Undefined = 0,
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DC_Int = 1,
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DC_FastInt = 2,
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DC_Float = 3
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};
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const EDiscreteCosTransf DC_FIRST = DC_Int;
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const EDiscreteCosTransf DC_LAST = DC_Float;
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class OX_CLASS_DECL COXJPEGCodec : public CObject
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{
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// Data Members
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public:
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protected:
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static CMapPtrToPtr m_RunningCodecsMap;
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CString m_sWarnings;
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private:
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// Member Functions
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public:
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COXJPEGCodec();
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// --- In :
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// --- Out :
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// --- Returns :
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// --- Effect : Contructor of object
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virtual ~COXJPEGCodec();
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// --- In :
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// --- Out :
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// --- Returns :
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// --- Effect : Destructor of object
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#ifdef _DEBUG
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virtual void Dump(CDumpContext&) const;
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virtual void AssertValid() const;
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#endif //_DEBUG
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CString GetWarningMessages()
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{ return m_sWarnings; }
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// --- In :
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// --- Out :
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// --- Returns : a concatenated string (separator = \n) of warnings
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// --- Effect :
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protected:
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static void error_exit(j_common_ptr cinfo);
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static void output_message(j_common_ptr cinfo);
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static void emit_message(j_common_ptr cinfo, int msg_level);
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static void format_message(j_common_ptr cinfo, TCHAR* buffer);
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static void reset_error_mgr(j_common_ptr cinfo);
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BOOL SetJPEGErrorHandling(struct jpeg_error_mgr* err);
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virtual void ProcessError(j_common_ptr cinfo);
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virtual void OutputMessage(j_common_ptr cinfo);
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virtual void EmitMessage(j_common_ptr cinfo, int msg_level);
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virtual void FormatMessage(j_common_ptr cinfo, LPTSTR buffer);
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virtual void ResetError(j_common_ptr cinfo);
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private:
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};
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#endif //__JPEGCODEC_H__
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