diballoc.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef __DIBALLOC_H_
- #define __DIBALLOC_H_
- #define DibPtr(lpbi) (LPVOID)(DibColors(lpbi) + (UINT)(lpbi)->biClrUsed)
- #define DibColors(lpbi) ((LPRGBQUAD)((LPBYTE)(lpbi) + (int)(lpbi)->biSize))
- #define WIDTHBYTES(i) ((unsigned long)((i+31)&(~31))/8) //ULONG aligned !
- #define DibNumColors(lpbi) ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8
- ? (WORD)(1 << (int)(lpbi)->biBitCount)
- : (WORD)(lpbi)->biClrUsed)
- typedef HANDLE HDIB;
- #ifdef _WIN32
- typedef struct tag_DIBDATA
- {
- BITMAPINFOHEADER bmiHeader;
- RGBQUAD bmiColors[256];
- HANDLE hMapping;
- HBITMAP hBitmap;
- DIBSECTION DibSection;
- } DIBDATA;
- ///////////////////
- // private functions
- class CHXImageSample : public CHXMemoryBlock
- {
- public:
- CHXImageSample(CHXMemoryAllocator * pAllocator);
- virtual BOOL Allocate(ULONG32 uSize);
- virtual void Free();
- void SetDibData(DIBDATA* pDibData);
- DIBDATA* GetDibData();
- private:
- BOOL m_bInitialized;
- DIBDATA m_DibData;
- };
- class CHXDibSectionAllocator : public CHXMemoryAllocator
- {
- public:
- CHXDibSectionAllocator(BOOL bThreadSafe=FALSE);
- virtual ~CHXDibSectionAllocator();
- UCHAR * GetPacketBuffer(IHXUnknown ** pPacketBuffer);
- HX_RESULT SetProperties(HX20ALLOCPROPS* pRequest, HX20ALLOCPROPS* pActual);
- HX_RESULT SetDibFormat(BITMAPINFO* pbi);
- inline BITMAPINFO* GetDibFormap() { return m_pbi;}
- private:
- BITMAPINFO* m_pbi;
- };
- #endif /* _WIN32 */
- class CHXDIBits
- {
- public:
- CHXDIBits();
- virtual ~CHXDIBits();
- HX_RESULT GetDIBits(HDC /* IN */ hDC,
- HBITMAP /* IN */ hBM,
- UCHAR*& /* OUT */ pBits,
- BITMAPINFOHEADER*& /* OUT */ pHeader);
- private:
- HDIB m_hDIB;
- };
- #endif // __DIBALLOC_H_