www.pudn.com > H323BeaconClient-v1.4_win_src.zip > ximabmp.h, change:2003-10-09,size:3199b


/* 
 * File:	ximabmp.h 
 * Purpose:	BMP Image Class Loader and Writer 
 */ 
/* === C R E D I T S  &  D I S C L A I M E R S ============== 
 * CxImageBMP (c) 07/Aug/2001 <ing.davide.pizzolato@libero.it> 
 * Permission is given by the author to freely redistribute and include 
 * this code in any program as long as this credit is given where due. 
 * 
 * CxImage version 5.00 23/Aug/2002 
 * See the file history.htm for the complete bugfix and news report. 
 * 
 * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes 
 * 
 * original CImageBMP  and CImageIterator implementation are: 
 * Copyright:	(c) 1995, Alejandro Aguilar Sierra <asierra@servidor.unam.mx> 
 * 
 * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY 
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES 
 * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE 
 * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED 
 * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT 
 * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY 
 * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL 
 * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER 
 * THIS DISCLAIMER. 
 * 
 * Use at your own risk! 
 * ========================================================== 
 */ 
 
#if !defined(__ximaBMP_h) 
#define __ximaBMP_h 
 
#include "ximage.h" 
 
#if CXIMAGE_SUPPORT_BMP 
 
class CxImageBMP: public CxImage 
{ 
public: 
	CxImageBMP(): CxImage(CXIMAGE_FORMAT_BMP) {}; 
 
	bool Decode(CxFile * hFile); 
	bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } 
 
	bool Encode(CxFile * hFile); 
	bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } 
 
protected: 
	bool DibReadBitmapInfo(CxFile* fh, BITMAPINFOHEADER *pdib); 
}; 
 
#define BFT_ICON   0x4349   /* 'IC' */ 
#define BFT_BITMAP 0x4d42   /* 'BM' */ 
#define BFT_CURSOR 0x5450   /* 'PT' */ 
 
#ifndef WIDTHBYTES 
#define WIDTHBYTES(i)           ((unsigned)((i+31)&(~31))/8)  /* ULONG aligned ! */ 
#endif 
 
#define DibWidthBytesN(lpbi, n) (UINT)WIDTHBYTES((UINT)(lpbi)->biWidth * (UINT)(n)) 
#define DibWidthBytes(lpbi)     DibWidthBytesN(lpbi, (lpbi)->biBitCount) 
 
#define DibSizeImage(lpbi)      ((lpbi)->biSizeImage == 0 \ 
                                    ? ((DWORD)(UINT)DibWidthBytes(lpbi) * (DWORD)(UINT)(lpbi)->biHeight) \ 
                                    : (lpbi)->biSizeImage) 
 
#define DibNumColors(lpbi)      ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8 \ 
                                    ? (int)(1 << (int)(lpbi)->biBitCount)          \ 
                                    : (int)(lpbi)->biClrUsed) 
 
#define FixBitmapInfo(lpbi)     if ((lpbi)->biSizeImage == 0)                 \ 
												(lpbi)->biSizeImage = DibSizeImage(lpbi); \ 
                                if ((lpbi)->biClrUsed == 0)                   \ 
                                    (lpbi)->biClrUsed = DibNumColors(lpbi);   \ 
 
#endif 
 
#endif