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/*
* 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 int32_t RLE_COMMAND = 0;
const int32_t RLE_ENDOFLINE = 0;
const int32_t RLE_ENDOFBITMAP = 1;
const int32_t 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) (uint32_t)WIDTHBYTES((uint32_t)(lpbi)->biWidth * (uint32_t)(n))
#define DibWidthBytes(lpbi) DibWidthBytesN(lpbi, (lpbi)->biBitCount)
#define DibSizeImage(lpbi) ((lpbi)->biSizeImage == 0 \
? ((uint32_t)(uint32_t)DibWidthBytes(lpbi) * (uint32_t)(uint32_t)(lpbi)->biHeight) \
: (lpbi)->biSizeImage)
#define DibNumColors(lpbi) ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8 \
? (int32_t)(1 << (int32_t)(lpbi)->biBitCount) \
: (int32_t)(lpbi)->biClrUsed)
#define FixBitmapInfo(lpbi) if ((lpbi)->biSizeImage == 0) \
(lpbi)->biSizeImage = DibSizeImage(lpbi); \
if ((lpbi)->biClrUsed == 0) \
(lpbi)->biClrUsed = DibNumColors(lpbi); \
#endif
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