geom.hpp
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上传日期:2007-02-02
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文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*************************************************************************
- This software module was originally developed by
- Ming-Chieh Lee (mingcl@microsoft.com), Microsoft Corporation
- Wei-ge Chen (wchen@microsoft.com), Microsoft Corporation
- Bruce Lin (blin@microsoft.com), Microsoft Corporation
- Chuang Gu (chuanggu@microsoft.com), Microsoft Corporation
- (date: March, 1996)
- in the course of development of the MPEG-4 Video (ISO/IEC 14496-2).
- This software module is an implementation of a part of one or more MPEG-4 Video tools
- as specified by the MPEG-4 Video.
- ISO/IEC gives users of the MPEG-4 Video free license to this software module or modifications
- thereof for use in hardware or software products claiming conformance to the MPEG-4 Video.
- Those intending to use this software module in hardware or software products are advised that its use may infringe existing patents.
- The original developer of this software module and his/her company,
- the subsequent editors and their companies,
- and ISO/IEC have no liability for use of this software module or modifications thereof in an implementation.
- Copyright is not released for non MPEG-4 Video conforming products.
- Microsoft retains full right to use the code for his/her own purpose,
- assign or donate the code to a third party and to inhibit third parties from using the code for non <MPEG standard> conforming products.
- This copyright notice must be included in all copies or derivative works.
- Copyright (c) 1996, 1997.
- Module Name:
- geom.hpp
- Abstract:
- 2D geometry for polygons
- Revision History:
- *************************************************************************/
- #ifndef __GEOM_HPP_
- #define __GEOM_HPP_
- Class CPolygonI;
- Class CPolygonI {
- public:
- // Constructors
- CPolygonI () : m_csit (0), m_rgsit (NULL)
- {}
- CPolygonI (const CPolygonI& poly);
- CPolygonI (UInt csit, const CSite* rgsit, Bool bCheckCorner = FALSE, const CRct& rc = CRct ());
- CPolygonI (const CRct& r);
- ~CPolygonI () {delete [] m_rgsit, m_rgsit=NULL;}
- // operations
- Void crop (const CRct& rct); //crop to stay in rct
- Void close (); //close possible open polygons
- // Properties
- UInt nSites () const {return m_csit;}
- const CSite& operator [] (UInt i) const {return at (i);}
- Void unpack (UInt& csit, CSite*& rgsit) const;
- CPolygonI* sample (int rate=1, const CRct& rc = CRct());
- Void dump (const Char* pchFileName) const;
- protected:
- UInt m_csit;
- CSite* m_rgsit;
- const CSite& at (Int isit) const
- {assert (isit < (Int) m_csit && isit >= - (Int) m_csit);
- return m_rgsit[isit >= 0 ? isit : (isit + (Int) m_csit)];}
- void allocate (UInt n);
- Void checkCorner (const CRct& rc);
- };
- #endif // __GEOM_HPP