svn-gvsig-desktop / trunk / libraries / libjni-ecwcompress / include / include-sdk / NCSJPCBuffer.h @ 12522
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/********************************************************
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** Copyright 2003 Earth Resource Mapping Ltd.
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** This document contains proprietary source code of
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** Earth Resource Mapping Ltd, and can only be used under
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** one of the three licenses as described in the
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** license.txt file supplied with this distribution.
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** See separate license.txt file for license details
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** and conditions.
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**
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** This software is covered by US patent #6,442,298,
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** #6,102,897 and #6,633,688. Rights to use these patents
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** is included in the license agreements.
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**
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** FILE: $Archive: /NCS/Source/include/NCSJPCBuffer.h $
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** CREATED: 14/03/2003 3:27:34 PM
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** AUTHOR: Simon Cope
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** PURPOSE: CNCSJPCBuffer class header
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** EDITS: [xx] ddMmmyy NAME COMMENTS
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*******************************************************/
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#ifndef NCSJPCBUFFER_H
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#define NCSJPCBUFFER_H
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#ifndef NCSJPCRECT_H
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#include "NCSJPCRect.h" |
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#endif // NCSJPCRECT_H |
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#ifndef NCSMISC_H
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#include "NCSMisc.h" |
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#endif
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#ifndef NCSECWCLIENT_H
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#include "NCSECWClient.h" |
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#endif
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#ifndef NCSMEMPOOL_H
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#include "NCSMemPool.h" |
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#endif // NCSMEMPOOL_H |
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#include <vector> |
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/**
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* CNCSJPCBuffer class - the base JPC scanline buffer.
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*
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* @author Simon Cope
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* @version $Revision: 3538 $ $Author: nacho $ $Date: 2006-01-09 12:56:54 +0100 (Mon, 09 Jan 2006) $
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*/
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class NCSJPC_EXPORT_ALL CNCSJPCBuffer: public CNCSJPCRect {
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public:
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/** Maximum UINT8 value */
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static const UINT32 MAXUINT8; |
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/** Maximum UINT16 value */
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static const UINT32 MAXUINT16; |
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/** Maximum UINT32 value */
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static const UINT32 MAXUINT32; |
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/** Minimum UINT8 value */
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static const UINT32 MINUINT8; |
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/** Minimum UINT16 value */
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static const UINT32 MINUINT16; |
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/** Minimum UINT32 value */
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static const UINT32 MINUINT32; |
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/** Maximum INT8 value */
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static const UINT32 MAXINT8; |
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/** Maximum INT16 value */
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static const UINT32 MAXINT16; |
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/** Maximum INT32 value */
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static const UINT32 MAXINT32; |
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/** Minimum INT8 value */
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static const INT32 MININT8; |
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/** Minimum INT16 value */
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static const INT32 MININT16; |
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/** Minimum INT32 value */
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static const INT32 MININT32; |
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/**
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* SystemInfo class - Some basic system capabilities we care about.
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*
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* @author Simon Cope
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* @version $Revision: 3538 $ $Author: nacho $ $Date: 2006-01-09 12:56:54 +0100 (Mon, 09 Jan 2006) $
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*/
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class NCSJPC_EXPORT_ALL SystemInfo {
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public:
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/** MMX Is present */
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bool m_bMMXPresent;
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/** SSE is present */
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bool m_bSSEPresent;
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/** SSE2 is present */
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bool m_bSSE2Present;
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/** 3DNow is present */
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bool m_b3DNowPresent;
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/** Bytes of physical memory on system */
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UINT64 m_nPhysicalMemBytes; |
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/** Default constructor */
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SystemInfo(); |
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/** Current timestamp in US */
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static NCSTimeStampUs GetTime();
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#ifdef WIN32
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private:
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/** high-resolution Timer frequency */
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static LARGE_INTEGER sm_iFrequency;
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#endif
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}; |
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/** SystemInfo instance */
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static SystemInfo sm_SystemInfo;
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/** Buffer copy US */
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static NCSTimeStampUs sm_usCopy;
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/** buffer copy bytes */
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static UINT64 sm_nCopyBytes;
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/** buffer clear US */
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static NCSTimeStampUs sm_usClear;
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/** buffer clear bytes */
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static UINT64 sm_nClearBytes;
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/** buffer Alloc US */
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static NCSTimeStampUs sm_usAlloc;
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/** Current buffer alloc bytes */
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static UINT64 sm_nAllocBytes;
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/** buffer free US */
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static NCSTimeStampUs sm_usFree;
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typedef enum { |
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/** s16 integer buffer type */
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BT_INT16 = NCSCT_INT16, |
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/** s32 integer buffer type */
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BT_INT32 = NCSCT_INT32, |
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/** IEEE4 single precision float buffer type */
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BT_IEEE4 = NCSCT_IEEE4 |
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} Type; |
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/** FLAG: This buffer owns resources */
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static const UINT32 AT_OWNER; |
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/** FLAG: A child node returned the buffer and will free it later */
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static const UINT32 AT_CHILD; |
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/** Buffer is locked and can't be assigned to. */
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static const UINT32 AT_LOCKED; |
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/**
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* CNCSJPCBufferPool class - a rotating pool of buffers
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*
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* @author Simon Cope
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* @version $Revision: 3538 $ $Author: nacho $ $Date: 2006-01-09 12:56:54 +0100 (Mon, 09 Jan 2006) $
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*/
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class CNCSJPCBufferPool {
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public:
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/** NCS memory pool */
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NCSPool *m_pPool; |
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/** Size */
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UINT32 m_nSize; |
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/** Constructor */
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CNCSJPCBufferPool(); |
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/** Destructor */
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~CNCSJPCBufferPool(); |
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/** Set the CodeBlock size */
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void SetCBSize(Type eType, UINT32 nWidth, UINT32 nHeight);
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/** Alloc a buffer from the pool */
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void *Alloc();
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/** Return a buffer to the pool */
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void Free(void *p); |
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}; |
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/** Buffer type */
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Type m_eType; |
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/** buffer flags */
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UINT32 m_Flags; |
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/** Actual buffer pointer */
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void *m_pBuffer;
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/** Pool - optional */
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CNCSJPCBufferPool *m_pPool; |
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/** Buffer step size to next line */
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int m_nStep;
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/** Default constructor, initialises members */
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CNCSJPCBuffer(); |
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/** Copy constructor */
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CNCSJPCBuffer::CNCSJPCBuffer( const class CNCSJPCBuffer& src );
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/** constructor, specify rect values */
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CNCSJPCBuffer(UINT32 nWidth, Type eType); |
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/** constructor, specify rect values */
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CNCSJPCBuffer(UINT32 nWidth, UINT32 nHeight, Type eType); |
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/** constructor, specify rect values */
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CNCSJPCBuffer(INT32 nX0, INT32 nY0, INT32 nX1, INT32 nY1, Type eType); |
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/** constructor, specify rect values */
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CNCSJPCBuffer(INT32 nX0, INT32 nY0, UINT32 nWidth, UINT32 nHeight, Type eType); |
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/** Virtual destructor */
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virtual ~CNCSJPCBuffer(); |
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/** Assignment operator */
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class CNCSJPCBuffer& CNCSJPCBuffer::operator=( const class CNCSJPCBuffer& src );
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/** Alloc a buffer the specified width and type */
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bool Alloc(UINT32 nWidth, Type eType);
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/** Alloc a buffer the specified width, height and type */
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bool Alloc(UINT32 nWidth, UINT32 nHeight, Type eType);
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/** Alloc a buffer with the specified TL, BR and type */
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bool Alloc(INT32 nX0, INT32 nY0, INT32 nX1, INT32 nY1, Type eType);
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/** Alloc a buffer with the specified TL, width, height and type */
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bool Alloc(INT32 nX0, INT32 nY0, UINT32 nWidth, UINT32 nHeight, Type eType);
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/** Free the buffer */
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void Free();
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/** Assign a buffer to this buffer */
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bool Assign(Type eType, void *pPtr, INT32 nStep = 0, bool bFree = true); |
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/** Assign a buffer to this buffer */
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bool Assign(UINT32 nWidth, Type eType, void *pPtr, INT32 nStep = 0, bool bFree = true); |
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/** Assign a buffer to this buffer */
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bool Assign(UINT32 nWidth, UINT32 nHeight, Type eType, void *pPtr, INT32 nStep = 0, bool bFree = true); |
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/** Assign a buffer to this buffer */
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bool Assign(INT32 nX0, INT32 nY0, INT32 nX1, INT32 nY1, Type eType, void *pPtr, INT32 nStep = 0, bool bFree = true); |
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/** Assign a buffer to this buffer */
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bool Assign(INT32 nX0, INT32 nY0, UINT32 nWidth, UINT32 nHeight, Type eType, void *pPtr, INT32 nStep = 0, bool bFree = true); |
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/** Release this buffer */
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void Release();
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/** Set flags */
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void SetFlag(UINT32 Flag) { m_Flags |= Flag; };
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/** Unset flags */
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void UnSetFlags(UINT32 Flags) { m_Flags &= ~Flags; };
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/** Get flags */
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UINT32 GetFlags() { return(m_Flags); };
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/** test flags */
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bool TestFlags(UINT32 Flag) { return((m_Flags & Flag) ? true : false); }; |
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/**
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* Return the size of a buffer in bytes (default 1 cell).
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* @param eType Type of buffer
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* @param nWidth Number of pixels in buffer.
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* @return UINT32 calculated buffer size in bytes.
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*/
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static NCS_INLINE UINT32 Size(Type eType, UINT32 nWidth = 1, UINT32 nHeight = 1) { |
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UINT32 nLineSize = 0;
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switch(eType) {
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case BT_INT16:
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nLineSize = sizeof(INT16) * nWidth;
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break;
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case BT_INT32:
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nLineSize = sizeof(INT32) * nWidth;
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break;
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case BT_IEEE4:
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nLineSize = sizeof(IEEE4) * nWidth;
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break;
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} |
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if(nHeight != 1 && nLineSize % 32) { |
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// Pad scanlines to 32 byte multiples for performance
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// when the buffer is > 1 line high
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nLineSize = (1 + nLineSize / 32) * 32; |
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} |
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return(nLineSize * nHeight);
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} |
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/** Get buffer step in cells */
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NCS_INLINE UINT32 GetStep() { return(m_nStep); };
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/** Get buffer step in bytes */
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NCS_INLINE UINT32 GetStepBytes() { return(m_nStep * Size(m_eType)); };
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/** get buffer type */
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NCS_INLINE Type GetType() { return(m_eType); };
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/** get pointer to start of buffer (0,0) */
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NCS_INLINE void *GetPtr() { return(m_pBuffer); }; |
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/** get pointer to buffer at (x,y) */
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NCS_INLINE void *GetPtr(INT32 x, INT32 y) { return((UINT8*)m_pBuffer + (y - GetY0()) * (INT32)GetStepBytes() + (x - GetX0()) * (INT32)Size(GetType())); }; |
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/**
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* Return the size of the Wavelet Tranform border for the specified pipeline type.
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* @param eType Type of buffer
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* @return UINT32 Width/Height of border in CELLS.
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*/
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static NCS_INLINE UINT32 Border(Type eType) {
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switch(eType) {
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case BT_INT16:
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case BT_INT32:
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return(1); |
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break;
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case BT_IEEE4:
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return(2); |
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break;
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} |
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return(0); |
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} |
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/** Clear buffer to 0 */
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void Clear();
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/**
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* Convert a line to a line of type T.
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* @param pDst Pointer to Destination buffer
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* @return bool true on succes, else false.
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*/
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template <class T> bool Convert(T *pDst, UINT8 nStep = 1) { |
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if(m_pBuffer && pDst) {
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UINT32 x = 0;
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UINT32 nWidth = GetWidth(); |
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if(nStep == 1) { |
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// Single band
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)((INT16*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)((INT32*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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FLT_TO_INT_INIT(); |
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)NCSfloatToInt32_RM(((IEEE4*)m_pBuffer)[x]); |
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// pDst[x] = (T)NCSFloor(((IEEE4*)m_pBuffer)[x]);
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} |
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FLT_TO_INT_FINI(); |
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break;
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} |
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} else if(nStep == 3) { |
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// 3 band - eg RGB
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 3] = (T)((INT16*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 3] = (T)((INT32*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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FLT_TO_INT_INIT(); |
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for(x = 0; x < nWidth; x++) { |
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pDst[x*3] = (T)NCSfloatToInt32_RM(((IEEE4*)m_pBuffer)[x]);
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} |
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FLT_TO_INT_FINI(); |
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break;
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} |
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} else if(nStep == 4) { |
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// 4 band, eg RGBA
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 4] = (T)((INT16*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 4] = (T)((INT32*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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FLT_TO_INT_INIT(); |
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for(x = 0; x < nWidth; x++) { |
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pDst[x*4] = (T)NCSfloatToInt32_RM(((IEEE4*)m_pBuffer)[x]);
|
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} |
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FLT_TO_INT_FINI(); |
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} |
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} else {
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * nStep] = (T)((INT16*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * nStep] = (T)((INT32*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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FLT_TO_INT_INIT(); |
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for(x = 0; x < nWidth; x++) { |
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pDst[x*nStep] = (T)NCSfloatToInt32_RM(((IEEE4*)m_pBuffer)[x]); |
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} |
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FLT_TO_INT_FINI(); |
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break;
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} |
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} |
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return(true); |
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} |
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return(false); |
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} |
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/**
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* Convert a line to a line of type T.
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* @param pDst Pointer to Destination buffer
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* @return bool true on succes, else false.
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*/
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template <class T> bool ConvertFLT(T *pDst, UINT8 nStep = 1) { |
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if(m_pBuffer && pDst) {
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UINT32 x = 0;
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UINT32 nWidth = GetWidth(); |
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|
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if(nStep == 1) { |
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// Single band
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)((INT16*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)((INT32*)m_pBuffer)[x]; |
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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for(x = 0; x < nWidth; x++) { |
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pDst[x] = (T)((IEEE4*)m_pBuffer)[x]; |
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} |
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break;
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} |
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} else if(nStep == 3) { |
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// 3 band - eg RGB
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 3] = (T)((INT16*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 3] = (T)((INT32*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 3] = (T)((IEEE4*)m_pBuffer)[x];
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} |
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break;
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} |
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} else if(nStep == 4) { |
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// 4 band, eg RGBA
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switch(GetType()) {
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case CNCSJPCBuffer::BT_INT16:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 4] = (T)((INT16*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_INT32:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 4] = (T)((INT32*)m_pBuffer)[x];
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} |
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break;
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case CNCSJPCBuffer::BT_IEEE4:
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for(x = 0; x < nWidth; x++) { |
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pDst[x * 4] = (T)((IEEE4*)m_pBuffer)[x];
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} |
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break;
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} |
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} else {
|
| 448 |
switch(GetType()) {
|
| 449 |
case CNCSJPCBuffer::BT_INT16:
|
| 450 |
for(x = 0; x < nWidth; x++) { |
| 451 |
pDst[x * nStep] = (T)((INT16*)m_pBuffer)[x]; |
| 452 |
} |
| 453 |
break;
|
| 454 |
case CNCSJPCBuffer::BT_INT32:
|
| 455 |
for(x = 0; x < nWidth; x++) { |
| 456 |
pDst[x * nStep] = (T)((INT32*)m_pBuffer)[x]; |
| 457 |
} |
| 458 |
break;
|
| 459 |
case CNCSJPCBuffer::BT_IEEE4:
|
| 460 |
for(x = 0; x < nWidth; x++) { |
| 461 |
pDst[x * nStep] = (T)((IEEE4*)m_pBuffer)[x]; |
| 462 |
} |
| 463 |
break;
|
| 464 |
} |
| 465 |
} |
| 466 |
return(true); |
| 467 |
} |
| 468 |
return(false); |
| 469 |
} |
| 470 |
/**
|
| 471 |
* Read buffer to a type T.
|
| 472 |
* @param pDst Pointer to Destination buffer
|
| 473 |
* @return bool true on succes, else false.
|
| 474 |
*/
|
| 475 |
template <class T> bool Read(T *pDst, UINT8 nStep = 1) { |
| 476 |
for(UINT32 y = 0; y < GetHeight(); y++) { |
| 477 |
Convert(pDst, nStep); |
| 478 |
} |
| 479 |
return(true); |
| 480 |
} |
| 481 |
/**
|
| 482 |
* Read buffer to a (IEEE4/IEEE8) type T.
|
| 483 |
* @param pDst Pointer to Destination buffer
|
| 484 |
* @return bool true on succes, else false.
|
| 485 |
*/
|
| 486 |
template <class T> bool ReadFLT(T *pDst, UINT8 nStep = 1) { |
| 487 |
for(UINT32 y = 0; y < GetHeight(); y++) { |
| 488 |
ConvertFLT(pDst, nStep); |
| 489 |
} |
| 490 |
return(true); |
| 491 |
} |
| 492 |
|
| 493 |
/** Read value(s) from the buffer at the specified position, size */
|
| 494 |
NCS_INLINE bool Read(void *pValue, INT32 nX, INT32 nY = 0, UINT32 nWidth = 1, UINT32 nHeight = 1, UINT32 nStep = 1) { |
| 495 |
UINT32 x, y; |
| 496 |
switch(m_eType) {
|
| 497 |
case BT_INT16:
|
| 498 |
for(y = 0; y < nHeight; y++) { |
| 499 |
for(x = 0; x < nWidth; x++) { |
| 500 |
*((INT16*)pValue + nStep * y + x) = *((INT16*)m_pBuffer + m_nStep * ((nY - m_Y0) + y) + (nX - m_X0) + x); |
| 501 |
} |
| 502 |
} |
| 503 |
break;
|
| 504 |
case BT_INT32:
|
| 505 |
for(y = 0; y < nHeight; y++) { |
| 506 |
for(x = 0; x < nWidth; x++) { |
| 507 |
*((INT32*)pValue + nStep * y + x) = *((INT32*)m_pBuffer + m_nStep * ((nY - m_Y0) + y) + (nX - m_X0) + x); |
| 508 |
} |
| 509 |
} |
| 510 |
break;
|
| 511 |
case BT_IEEE4:
|
| 512 |
for(y = 0; y < nHeight; y++) { |
| 513 |
for(x = 0; x < nWidth; x++) { |
| 514 |
*((IEEE4*)pValue + nStep * y + x) = *((IEEE4*)m_pBuffer + m_nStep * ((nY - m_Y0) + y) + (nX - m_X0) + x); |
| 515 |
} |
| 516 |
} |
| 517 |
break;
|
| 518 |
} |
| 519 |
return(true); |
| 520 |
} |
| 521 |
/** Read from the buffer to the destination buffer, copying only the intersecting area */
|
| 522 |
NCS_INLINE bool Read(CNCSJPCBuffer *pDst) {
|
| 523 |
CNCSJPCRect r(NCSMax(GetX0(), pDst->GetX0()), |
| 524 |
NCSMax(GetY0(), pDst->GetY0()), |
| 525 |
NCSMin(GetX1(), pDst->GetX1()), |
| 526 |
NCSMin(GetY1(), pDst->GetY1())); |
| 527 |
if(pDst->GetType() == GetType()) {
|
| 528 |
return(Copy(r.GetWidth(), r.GetHeight(),
|
| 529 |
(UINT8*)pDst->GetPtr() + (r.GetY0() - pDst->GetY0()) * pDst->GetStepBytes() + Size(m_eType, r.GetX0() - pDst->GetX0()), |
| 530 |
pDst->GetStepBytes(), |
| 531 |
(UINT8*)GetPtr() + (r.GetY0() - GetY0()) * GetStepBytes() + Size(m_eType, r.GetX0() - GetX0()), |
| 532 |
GetStepBytes(), |
| 533 |
m_eType)); |
| 534 |
} else {
|
| 535 |
for(UINT32 y = 0; y < r.GetHeight(); y++) { |
| 536 |
CNCSJPCBuffer tmp; |
| 537 |
tmp.Assign(r.GetX0(), r.GetY0(), r.GetWidth(), r.GetHeight(), GetType(), (UINT8*)GetPtr() + (y + r.GetY0() - GetY0()) * GetStepBytes() + Size(m_eType, r.GetX0() - GetX0())); |
| 538 |
switch(pDst->GetType()) {
|
| 539 |
case BT_INT16:
|
| 540 |
tmp.Convert((INT16*)((UINT8*)pDst->GetPtr() + (y + r.GetY0() - pDst->GetY0()) * pDst->GetStepBytes() + Size(m_eType, r.GetX0() - pDst->GetX0()))); |
| 541 |
break;
|
| 542 |
case BT_INT32:
|
| 543 |
tmp.Convert((INT32*)((UINT8*)pDst->GetPtr() + (y + r.GetY0() - pDst->GetY0()) * pDst->GetStepBytes() + Size(m_eType, r.GetX0() - pDst->GetX0()))); |
| 544 |
break;
|
| 545 |
case BT_IEEE4:
|
| 546 |
tmp.ConvertFLT((IEEE4*)((UINT8*)pDst->GetPtr() + (y + r.GetY0() - pDst->GetY0()) * pDst->GetStepBytes() + Size(m_eType, r.GetX0() - pDst->GetX0()))); |
| 547 |
break;
|
| 548 |
} |
| 549 |
tmp.Release(); |
| 550 |
} |
| 551 |
} |
| 552 |
return(true); |
| 553 |
} |
| 554 |
|
| 555 |
/**
|
| 556 |
* Clip valus in the buffer to the specified range.
|
| 557 |
* @param nMin Min value
|
| 558 |
* @param nMax Max value
|
| 559 |
* @return bool true on success, else false & error set.
|
| 560 |
*/
|
| 561 |
bool Clip(INT32 nMin, INT32 nMax);
|
| 562 |
/**
|
| 563 |
* Clip valus in a buffer to the specified range.
|
| 564 |
* @param fMin Min value
|
| 565 |
* @param fMax Max value
|
| 566 |
* @return bool true on success, else false & error set.
|
| 567 |
*/
|
| 568 |
bool Clip(IEEE4 fMin, IEEE4 fMax);
|
| 569 |
/**
|
| 570 |
* Add a constant value to the buffer.
|
| 571 |
* @param nValue Constant value to add
|
| 572 |
* @param nScale Scale factor, *= NCS2Pow(-nScale)
|
| 573 |
* @return bool true on succes, else false.
|
| 574 |
*/
|
| 575 |
bool Add(const INT32 nValue, INT16 nScale = 0); |
| 576 |
/**
|
| 577 |
* Add a constant value to the line.
|
| 578 |
* @param fValue Constant value to add
|
| 579 |
* @param nScale Scale factor, *= fScale
|
| 580 |
* @return bool true on succes, else false.
|
| 581 |
*/
|
| 582 |
bool Add(const IEEE4 fValue, INT16 nScale = 0); |
| 583 |
/**
|
| 584 |
* Change bit depth (data range) of a buffer
|
| 585 |
* @param nCurrentBits Current bit depth
|
| 586 |
* @param nNewBits New bit depth
|
| 587 |
* @return bool true on succes, else false.
|
| 588 |
*/
|
| 589 |
bool OffsetShift(const INT32 nValue, UINT8 nCurrentBits, UINT8 nNewBits); |
| 590 |
/**
|
| 591 |
* Copy from one pointer to another (may overlap).
|
| 592 |
* @param nWidth Width in pixels.
|
| 593 |
* @param nHeight Height in pixels.
|
| 594 |
* @param pDst Dest buffer
|
| 595 |
* @param nDstStep Dest buffer step size
|
| 596 |
* @param pSrc Src buffer
|
| 597 |
* @param nSrcStep Src buffer step size
|
| 598 |
* @param eType Buffer Type
|
| 599 |
* @return bool true on success, else false & error set.
|
| 600 |
*/
|
| 601 |
static bool Copy(UINT32 nWidth, UINT32 nHeight, void *pDst, INT32 nDstStep, const void *pSrc, INT32 nSrcStep, Type eType); |
| 602 |
|
| 603 |
protected:
|
| 604 |
|
| 605 |
private:
|
| 606 |
static CNCSJPCBufferPool sm_Pool;
|
| 607 |
|
| 608 |
bool Alloc();
|
| 609 |
}; |
| 610 |
|
| 611 |
typedef std::vector<CNCSJPCBuffer> CNCSJPCBufferVector;
|
| 612 |
|
| 613 |
class NCSJPC_EXPORT_ALL CNCSJPCBufferCache {
|
| 614 |
public:
|
| 615 |
virtual ~CNCSJPCBufferCache() {};
|
| 616 |
virtual void SetBuffers(UINT32 nBuffers);
|
| 617 |
virtual CNCSJPCBuffer *GetBuffer(UINT32 nBuffer); |
| 618 |
virtual CNCSJPCBuffer *FindBuffer(UINT32 &nBuffer, CNCSJPCRect &r, bool &bFound, CNCSJPCBuffer::Type eType);
|
| 619 |
private:
|
| 620 |
CNCSJPCBufferVector m_Buffers; |
| 621 |
}; |
| 622 |
|
| 623 |
#endif // !NCSJPCBUFFER_H |