//?cdib.cpp
//?new?version?for?WIN32
#include?“stdafx.h“
#include?“cdib.h“

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

IMPLEMENT_SERIAL（CDib?Cobject?0）;

CDib::CDib（）
{
	m_hFile?=?NULL;
	m_hBitmap?=?NULL;
	m_hPalette?=?NULL;
	m_nBmihAlloc?=?m_nImageAlloc?=?noAlloc;
	Empty（）;
}

CDib::CDib（CSize?size?int?nBitCount）
{
	m_hFile?=?NULL;
	m_hBitmap?=?NULL;
	m_hPalette?=?NULL;
	m_nBmihAlloc?=?m_nImageAlloc?=?noAlloc;
	Empty（）;
	ComputePaletteSize（nBitCount）;
	m_lpBMIH?=?（LPBITMAPINFOHEADER）?new?
		char[sizeof（BITMAPINFOHEADER）?+?sizeof（RGBQUAD）?*?m_nColorTableEntries];
	m_nBmihAlloc?=?crtAlloc;
	m_lpBMIH->biSize?=?sizeof（BITMAPINFOHEADER）;
	m_lpBMIH->biWidth?=?size.cx;
	m_lpBMIH->biHeight?=?size.cy;
	m_lpBMIH->biPlanes?=?1;
	m_lpBMIH->biBitCount?=?nBitCount;
	m_lpBMIH->biCompression?=?BI_RGB;
	m_lpBMIH->biSizeImage?=?0;
	m_lpBMIH->biXPelsPerMeter?=?0;
	m_lpBMIH->biYPelsPerMeter?=?0;
	m_lpBMIH->biClrUsed?=?m_nColorTableEntries;
	m_lpBMIH->biClrImportant?=?m_nColorTableEntries;
	ComputeMetrics（）;
	memset（m_lpvColorTable?0?sizeof（RGBQUAD）?*?m_nColorTableEntries）;
	m_lpImage?=?NULL;??//?no?data?yet
}

CDib::~CDib（）
{
	Empty（）;
}

CSize?CDib::GetDimensions（）
{	
	if（m_lpBMIH?==?NULL）?return?CSize（0?0）;
	return?CSize（（int）?m_lpBMIH->biWidth?（int）?m_lpBMIH->biHeight）;
}

BOOL?CDib::AttachMapFile（const?char*?strPathname?BOOL?bShare）?//?for?reading
{
	//?if?we?open?the?same?file?twice?Windows?treats?it?as?2?separate?files
	//?doesn‘t?work?with?rare?BMP?files?where?#?palette?entries?>?biClrUsed
	HANDLE?hFile?=?::CreateFile（strPathname?GENERIC_WRITE?|?GENERIC_READ
		bShare???FILE_SHARE_READ?:?0
		NULL?OPEN_EXISTING?FILE_ATTRIBUTE_NORMAL?NULL）;
	ASSERT（hFile?!=?INVALID_HANDLE_VALUE）;
	DWORD?dwFileSize?=?::GetFileSize（hFile?NULL）;
	HANDLE?hMap?=?::CreateFileMapping（hFile?NULL?PAGE_READWRITE?0?0?NULL）;
	DWORD?dwErr?=?::GetLastError（）;
	
	if（hMap?==?NULL）
	{
		AfxMessageBox（“Empty?bitmap?file“）;
		return?FALSE;
	}
	
	LPVOID?lpvFile?=?::MapViewOfFile（hMap?FILE_MAP_WRITE?0?0?0）;?//?map?whole?file
	ASSERT（lpvFile?!=?NULL）;
	
	if（（（LPBITMAPFILEHEADER）?lpvFile）->bfType?!=?0x4d42）
	{
		AfxMessageBox（“Invalid?bitmap?file“）;
		DetachMapFile（）;
		return?FALSE;
	}
	
	AttachMemory（（LPBYTE）?lpvFile?+?sizeof（BITMAPFILEHEADER））;
	m_lpvFile?=?lpvFile;
	m_hFile?=?hFile;
	m_hMap?=?hMap;
	return?TRUE;
}

BOOL?CDib::CopyToMapFile（const?char*?strPathname）
{
	//?copies?DIB?to?a?new?file?releases?prior?pointers
	//?if?you?previously?used?CreateSection?the?HBITMAP?will?be?NULL?（and?unusable）
	BITMAPFILEHEADER?bmfh;
	bmfh.bfType?=?0x4d42;??//?‘BM‘
	bmfh.bfSize?=?m_dwSizeImage?+?sizeof（BITMAPINFOHEADER）?+
			sizeof（RGBQUAD）?*?m_nColorTableEntries?+?sizeof（BITMAPFILEHEADER）;
	//?meaning?of?bfSize?open?to?interpretation
	bmfh.bfReserved1?=?bmfh.bfReserved2?=?0;
	bmfh.bfOffBits?=?sizeof（BITMAPFILEHEADER）?+?sizeof

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

?????文件??????16440??2010-08-21?08:52??CDib.cpp

?????文件???????1924??2010-12-05?12:39??CDib.h

?????文件????????240??2010-12-02?14:01??KL2.clw

?????文件??????14524??2010-12-05?23:03??KL2.cpp

?????文件???????4416??2010-12-05?11:30??KL2.dsp

?????文件????????531??2010-12-02?14:01??KL2.dsw

?????文件????????317??2010-12-02?14:01??KL2.h

?????文件???????1451??2010-12-05?14:17??KL2.rc

?????文件?????172245??2010-12-09?09:30??K-L變換實驗報告.docx

?????文件???????1584??2010-12-02?14:01??ReadMe.txt

?????文件????????450??2010-12-05?14:17??resource.h

?????文件????????290??2010-12-02?14:01??StdAfx.cpp

?????文件???????1145??2010-12-02?23:43??StdAfx.h

-----------?---------??----------?-----??----

???????????????215557????????????????????13