ximabmp.h
上传用户:pass2008
上传日期:2021-07-05
资源大小:3299k
文件大小:3k
- /*
- * File: ximabmp.h
- * Purpose: BMP Image Class Loader and Writer
- */
- /* ==========================================================
- * CxImageBMP (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
- * For conditions of distribution and use, see copyright notice in ximage.h
- *
- * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
- *
- * original CImageBMP and CImageIterator implementation are:
- * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
- *
- * ==========================================================
- */
- #if !defined(__ximaBMP_h)
- #define __ximaBMP_h
- #include "ximage.h"
- const int RLE_COMMAND = 0;
- const int RLE_ENDOFLINE = 0;
- const int RLE_ENDOFBITMAP = 1;
- const int RLE_DELTA = 2;
- #if !defined(BI_RLE8)
- #define BI_RLE8 1L
- #endif
- #if !defined(BI_RLE4)
- #define BI_RLE4 2L
- #endif
- #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); }
- #if CXIMAGE_SUPPORT_ENCODE
- bool Encode(CxFile * hFile);
- bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); }
- #endif // CXIMAGE_SUPPORT_ENCODE
- 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
- #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