//	bmpops.cpp?:?implementation?of?the?BMPFile?class
//	
//	This?handles?the?reading?and?writing?of?BMP?files.
//
//

#include?“stdafx.h“
#include?“bmpfile.h“

#ifdef?_DEBUG
#define?new?DEBUG_NEW
#undef?THIS_FILE
static?char?THIS_FILE[]?=?__FILE__;
#endif


BMPFile::BMPFile（）
{
	m_errorText=“OK“;
}

BMPFile::~BMPFile（）
{

}

////////////////////////////////////////////////////////////////////////////
//	write?a?24-bit?BMP?file
//
//	image?MUST?be?a?packed?buffer?（DWORD-aligned）
void?BMPFile::SaveBMP（CString?fileName		//?output?path
							BYTE?*?buf				//?BGR?buffer
							int?width				//?pixels
							int?height）
{
	short?res1=0;
????short?res2=0;
????long?pixoff=54;
????long?compression=0;
????long?cmpsize=0;
????long?colors=0;
????long?impcol=0;
	char?m1=‘B‘;
	char?m2=‘M‘;

	m_errorText=“OK“;

	int?imagesize=（width*24+31）/32*4*height;

	long?bmfsize=sizeof（BITMAPFILEHEADER）?+?sizeof（BITMAPINFOHEADER）?+
??							imagesize;	
	long?byteswritten=0;

	BITMAPINFOHEADER?header;
??	header.biSize=40;?						//?header?size
	header.biWidth=width;
	header.biHeight=height;
	header.biPlanes=1;
	header.biBitCount=24;					//?RGB?encoded?24?bit
	header.biCompression=BI_RGB;			//?no?compression
	header.biSizeImage=0;
	header.biXPelsPerMeter=0;
	header.biYPelsPerMeter=0;
	header.biClrUsed=0;
	header.biClrImportant=0;

	FILE?*fp;	
	fp=fopen（fileName“wb“）;//寫文件到磁盤
	if?（fp==NULL）?{
		m_errorText=“Can‘t?open?file?for?writing“;
		return;
	}

	//?should?probably?check?for?write?errors?here...
	
	fwrite（（BYTE??*）&（m1）11fp）;?byteswritten+=1;
	fwrite（（BYTE??*）&（m2）11fp）;?byteswritten+=1;
	fwrite（（long??*）&（bmfsize）41fp）;	byteswritten+=4;
	fwrite（（int??*）&（res1）21fp）;?byteswritten+=2;
	fwrite（（int??*）&（res2）21fp）;?byteswritten+=2;
	fwrite（（long??*）&（pixoff）41fp）;?byteswritten+=4;

	fwrite（（BITMAPINFOHEADER?*）&headersizeof（BITMAPINFOHEADER）1fp）;
	byteswritten+=sizeof（BITMAPINFOHEADER）;
	
	int?r=fwrite（bufimagesize1fp）;?//?buf?is?double?word?aligned.
	if（r=-1）{
		m_errorText=“Write?image?data?failed!“;
	}

	fclose（fp）;
}


////////////////////////////////////////////////////////////////////////////////////
//
//	148?bit?BMP?stuff
//
//	if?you?have?a?color-mapped?image?and?a?color?map...
//
//	the?BMP?saving?code?in?SaveColorMappedBMP?modified?from?Programming?
//	for?Graphics?Files?in?C?and?C++?by?John?Levine.

void?BMPFile::SaveBMP（CString?fileName?			//?output?path
					??BYTE?*?colormappedbuffer	//?one?BYTE?per?pixel?colormapped?image
					??int?width
					??int?height
?					??int?bitsperpixel			//?1?4?8
					??int?colors				//?number?of?colors?（number?of?RGBQUADs）
					??RGBQUAD?*colormap）			//?array?of?RGBQUADs?
{
	if（colormap==NULL）
		return;
	if（colormappedbuffer==NULL）
		return;

	int?datasize?cmapsize?byteswritten?row?col;

	m_errorText=“OK“;

	if?（bitsperpixel?==?24）?{
		//?the?routines?could?be?combined

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????17289??2003-06-28?22:21??threedbmp\Bmpfile.cpp

?????文件???????1534??2003-05-30?20:39??threedbmp\Bmpfile.h

?????文件????????173??2012-01-21?19:37??threedbmp\copyright.bat

?????文件???????2512??2004-01-05?17:26??threedbmp\MainFrm.cpp

?????文件???????1581??2003-10-31?17:36??threedbmp\MainFrm.h

?????文件??????29644??2012-02-09?10:00??threedbmp\OGL_MFC.APS

?????文件???????3067??2012-02-09?10:01??threedbmp\OGL_MFC.clw

?????文件???????4664??2004-01-05?21:23??threedbmp\OGL_MFC.cpp

?????文件???????5306??2012-02-09?10:01??threedbmp\OGL_MFC.dsp

?????文件????????537??2003-10-31?17:36??threedbmp\OGL_MFC.dsw

?????文件???????1367??2004-01-05?20:59??threedbmp\OGL_MFC.h

?????文件???????2572??2012-02-09?10:01??threedbmp\OGL_MFC.plg

?????文件??????12463??2004-01-06?08:47??threedbmp\OGL_MFC.rc

?????文件???????1762??2003-10-31?17:36??threedbmp\OGL_MFCDoc.cpp

?????文件???????1486??2003-10-31?17:36??threedbmp\OGL_MFCDoc.h

?????文件??????12707??2004-01-05?22:46??threedbmp\OGL_MFCView.cpp

?????文件???????2497??2004-01-05?22:26??threedbmp\OGL_MFCView.h

?????文件???????4335??2003-10-31?17:36??threedbmp\ReadMe.txt

?????文件???????1078??2003-10-31?17:36??threedbmp\res\OGL_MFC.ico

?????文件????????399??2003-10-31?17:36??threedbmp\res\OGL_MFC.rc2

?????文件???????1078??2003-10-31?17:36??threedbmp\res\OGL_MFCDoc.ico

?????文件???????1078??2003-10-31?17:36??threedbmp\res\Toolbar.bmp

?????文件???????1100??2004-01-05?21:21??threedbmp\resource.h

?????文件???????2526??2003-11-01?10:30??threedbmp\SelectColorDlg.cpp

?????文件???????1590??2003-10-31?22:33??threedbmp\SelectColorDlg.h

?????文件????????209??2003-10-31?17:36??threedbmp\StdAfx.cpp

?????文件???????1118??2004-01-05?21:00??threedbmp\StdAfx.h

?????文件??????49152??2004-01-06?08:47??threedbmp\ThreeDBMP.exe

?????文件??????11656??2002-12-04?20:58??threedbmp\Urllink.cpp

?????文件???????2848??2002-12-04?20:57??threedbmp\Urllink.h

............此處省略5個文件信息