bmpconverterdlg.cpp

24位真彩色转256色,24位真彩色转256色

// BmpConverterDlg.cpp : implementation file
//

#include "stdafx.h"
#include "BmpConverter.h"
#include "BmpConverterDlg.h"
#include "_OCTree.h"
#include "_ReduceList.h"
#include "_Palette.h"


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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBmpConverterDlg dialog

CBmpConverterDlg::CBmpConverterDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBmpConverterDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBmpConverterDlg)
	m_csInputFile = _T("");
	m_csOutputFile = _T("");
	m_nDepth = -1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBmpConverterDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBmpConverterDlg)
	DDX_Text(pDX, IDC_EDIT_INPUT, m_csInputFile);
	DDX_Text(pDX, IDC_EDIT_OUTPUT, m_csOutputFile);
	DDX_CBIndex(pDX, IDC_COMBO_DEPTH, m_nDepth);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBmpConverterDlg, CDialog)
	//{{AFX_MSG_MAP(CBmpConverterDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_INPUT, OnBtnInput)
	ON_BN_CLICKED(IDC_BTN_OUTPUT, OnBtnOutput)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBmpConverterDlg message handlers

BOOL CBmpConverterDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here

	m_nDepth = 5 ;

	UpdateData(FALSE);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBmpConverterDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CBmpConverterDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CBmpConverterDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CBmpConverterDlg::OnBtnInput() 
{
	// TODO: Add your control notification handler code here
	CFileDialog dlgInput(TRUE,NULL,NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
							_T("Bmp Files (*.bmp)|*.bmp||")) ;

	if(dlgInput.DoModal() == IDOK)
	{
		m_csInputFile = dlgInput.GetPathName();
		UpdateData(FALSE);
	}
}

void CBmpConverterDlg::OnBtnOutput() 
{
	// TODO: Add your control notification handler code here
	CFileDialog dlgOutput(FALSE,NULL,NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
							_T("Bmp Files (*.bmp)|*.bmp||")) ;

	if(dlgOutput.DoModal() == IDOK)
	{
		m_csOutputFile = dlgOutput.GetPathName();
		int nLen = m_csOutputFile.GetLength() ;
		if(nLen > 4)
		{
			if(		(m_csOutputFile.GetAt(nLen-1) == _T('p') || m_csOutputFile.GetAt(nLen-1) == _T('P'))  
				&&	(m_csOutputFile.GetAt(nLen-2) == _T('m') || m_csOutputFile.GetAt(nLen-2) == _T('M'))
				&&	(m_csOutputFile.GetAt(nLen-3) == _T('b') || m_csOutputFile.GetAt(nLen-3) == _T('B'))
				&&	(m_csOutputFile.GetAt(nLen-4) == _T('.') )
				)
			{
			}
			else
			{
				m_csOutputFile +=  _T(".bmp");
			}
		}
		else
		{
			m_csOutputFile +=  _T(".bmp");
		}
		UpdateData(FALSE);
	}
}

void CBmpConverterDlg::OnOK() 
{
	UpdateData(TRUE);

	// TODO: Add extra validation here
	if(m_csInputFile.IsEmpty() || m_csOutputFile.IsEmpty())
	{
		MessageBox(_T("please Input path."));
		return ;
	}

	GetDlgItem(IDC_BTN_INPUT)->EnableWindow(FALSE);
	GetDlgItem(IDC_BTN_OUTPUT)->EnableWindow(FALSE);
	GetDlgItem(IDOK)->EnableWindow(FALSE);
	GetDlgItem(IDCANCEL)->EnableWindow(FALSE);

	//######################################
	C_Timer time ;
	time.Boot();
	//######################################

	ConvertTo256();

	//######################################
	time.Stop();

	CString str ;
	str.Format(_T("use time : %.2f ms"),time.GetTime());
	MessageBox(str);
	//######################################

//	dwTime = GetTickCount() - dwTime ;

/*
*/
	GetDlgItem(IDC_BTN_INPUT)->EnableWindow(TRUE);
	GetDlgItem(IDC_BTN_OUTPUT)->EnableWindow(TRUE);
	GetDlgItem(IDOK)->EnableWindow(TRUE);
	GetDlgItem(IDCANCEL)->EnableWindow(TRUE);

}

HRESULT CBmpConverterDlg::ConvertTo256()
{

#ifdef	_DEBUG
	//######################################
	m_Timer.Boot();
	//######################################
#endif

	BITMAPFILEHEADER FileHeader;		// bmp文件头
	BITMAPINFOHEADER InfoHeader;		// bmp信息头

	FILE * fBmp = _tfopen(m_csInputFile,_T("rb"));
	if (fBmp==NULL)
	{
		return ERROR_OPEN_FILE_FAIL;
	}

	// 读取文件头
	fread(&FileHeader,sizeof(BITMAPFILEHEADER),1,fBmp);

	// 读取信息头
	fread(&InfoHeader,sizeof(BITMAPINFOHEADER),1,fBmp);

	if (InfoHeader.biBitCount != (WORD)24) 
	{
		fclose(fBmp);
		return ERROR_FORMAT_UNSUPPORT ;
	}

	BYTE * pDataSrc = new BYTE[InfoHeader.biWidth*InfoHeader.biHeight*3];
	if(pDataSrc == NULL)
	{
		fclose(fBmp);
		return ERROR_MEMORY_FAIL;
	}

	fseek(fBmp,FileHeader.bfOffBits,SEEK_SET);	
	fread(pDataSrc,InfoHeader.biWidth*InfoHeader.biHeight*3,1,fBmp);

	fclose(fBmp);

	//================================================================
	// Convert
	//================================================================

	HRESULT hRet = 0 ;

	I_OCTree * pIOCTree = new C_OCTree ;
	if(pIOCTree == NULL)
	{
		delete[] pDataSrc;
		return ERROR_MEMORY_FAIL ;
	}

	hRet = pIOCTree->Initialize(256,m_nDepth + 3);
	if(hRet != 0)
	{
		delete[] pDataSrc;
		pIOCTree->Release();  
		pIOCTree = NULL ;
		return hRet ;
	}

#ifdef	_DEBUG
	//######################################
	m_Timer.Stop();
	TRACE(_T("ReadFile : %.2f ms\n"),m_Timer.GetTime());
	//######################################

	//######################################
	m_Timer.Boot();
	//######################################
#endif

	//== AddPixel ===========
	S_Color sClr ;
	for(int i=0;i<InfoHeader.biWidth*InfoHeader.biHeight*3;i+=3)
	{
		sClr.byBlue = pDataSrc[i] ;
		sClr.byGreen = pDataSrc[i+1] ;
		sClr.byRed = pDataSrc[i+2] ;

		hRet = pIOCTree->AddPixel(&sClr);
		if(hRet != 0)
		{
			delete[] pDataSrc;
			pIOCTree->Release();  
			pIOCTree = NULL ;
			return hRet ;
		}
	}

#ifdef	_DEBUG
	//######################################
	m_Timer.Stop();
	TRACE(_T("AddPixel : %.2f ms\n"),m_Timer.GetTime());
	//######################################

	//######################################
	m_Timer.Boot();
	//######################################
#endif

	C_Palette clsPalette ;
	
	hRet = pIOCTree->FetchPalette(&clsPalette);
	if(hRet != 0)
	{
		delete[] pDataSrc;
		pIOCTree->Release();  
		pIOCTree = NULL ;
		return hRet ;
	}

	pIOCTree->Release();
	pIOCTree = NULL ;

#ifdef	_DEBUG
	//######################################
	m_Timer.Stop();
	TRACE(_T("FetchPalette : %.2f ms\n"),m_Timer.GetTime());
	//######################################

	//######################################
	m_Timer.Boot();
	//######################################
#endif

	//=====================================================================
	//=====================================================================

	BYTE * pDataDesc = new BYTE[InfoHeader.biWidth*InfoHeader.biHeight];
	if(pDataDesc == NULL)
	{
		delete[] pDataSrc ;
		pDataSrc = NULL ;
		return ERROR_MEMORY_FAIL;
	}

	int j ;
	for(i=0,j=0;i<InfoHeader.biWidth*InfoHeader.biHeight*3;i+=3,j++)
	{
		sClr.byBlue = pDataSrc[i] ;
		sClr.byGreen = pDataSrc[i+1] ;
		sClr.byRed = pDataSrc[i+2] ;

		pDataDesc[j] = (BYTE)(clsPalette.NearestColorIndex(&sClr));
	}

#ifdef	_DEBUG
	//######################################
	m_Timer.Stop();
	TRACE(_T("GetIndex : %.2f ms\n"),m_Timer.GetTime());
	//######################################

	//######################################
	m_Timer.Boot();
	//######################################
#endif

	delete[] pDataSrc ;
	pDataSrc = NULL ;
	

	FILE * f256 = _tfopen(m_csOutputFile,_T("wb"));
	if (f256==NULL)
	{
		delete[] pDataDesc ;
		pDataDesc = NULL ;
		return 0;
	}

	// Write to 256 file.
	FileHeader.bfSize = 1024+54+InfoHeader.biWidth*InfoHeader.biHeight ;
	FileHeader.bfOffBits = 1024+54 ;

	InfoHeader.biBitCount = 8 ;
	InfoHeader.biSizeImage = InfoHeader.biWidth*InfoHeader.biHeight ;


	S_Palette sPalette ;
	clsPalette.GetPalette(&sPalette);

	RGBQUAD rq[256];			// 调色板
	for(i=0;i<256 && i<(int)(sPalette.dwItemCount);i++)
	{
		rq[i].rgbBlue = sPalette.psClrData[i].byBlue ;
		rq[i].rgbGreen = sPalette.psClrData[i].byGreen ;
		rq[i].rgbRed = sPalette.psClrData[i].byRed ;
		rq[i].rgbReserved = 0 ;
	}

	// 写文件头
	fwrite(&FileHeader,sizeof(BITMAPFILEHEADER),1,f256);

	// 写信息头
	fwrite(&InfoHeader,sizeof(BITMAPINFOHEADER),1,f256);

	// 写调色板
	fwrite(rq,sizeof(RGBQUAD)*256,1,f256);

	// 写数据
	fwrite(pDataDesc,InfoHeader.biSizeImage,1,f256);

	delete[] pDataDesc ;
	pDataDesc = NULL ;

	fclose(f256);

#ifdef	_DEBUG
	//######################################
	m_Timer.Stop();
	TRACE(_T("WriteFile : %.2f ms\n"),m_Timer.GetTime());
	//######################################
#endif

	return 0 ;
}