displaydoc.cpp

USB低层驱动程序设计

// displayDoc.cpp : implementation of the CDisplayDoc class
//

#include "stdafx.h"
#include "display.h"

#include "displayDoc.h"
//#include "d:\Cypress\usb\drivers\ezusbdrv\ezusbsys.h"
#include "winioctl.h"
#include "string.h"
//#include "submain.h"




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

#define DIB_HEADER_MARKER  ((WORD)('M'<<8)|'B')

/////////////////////////////////////////////////////////////////////////////
// CDisplayDoc

IMPLEMENT_DYNCREATE(CDisplayDoc, CDocument)

BEGIN_MESSAGE_MAP(CDisplayDoc, CDocument)
	//{{AFX_MSG_MAP(CDisplayDoc)
	ON_COMMAND(IDC_SINGLE, OnSingle)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDisplayDoc construction/destruction

CDisplayDoc::CDisplayDoc()
{
	// TODO: add one-time construction code here
	m_hDib=NULL;
	m_data=0;
	m_tmp=0;
	phand=NULL;
}

CDisplayDoc::~CDisplayDoc()
{
	
}

//DEL BOOL CDisplayDoc::OnNewDocument()
//DEL {
//DEL 	if (!CDocument::OnNewDocument())
//DEL 		return FALSE;
//DEL 
//DEL 	// TODO: add reinitialization code here
//DEL 	// (SDI documents will reuse this document)
//DEL 
//DEL 	return TRUE;
//DEL }



/////////////////////////////////////////////////////////////////////////////
// CDisplayDoc serialization

void CDisplayDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		// TODO: add storing code here
	}
	else
	{
		// TODO: add loading code here
	}
}

/////////////////////////////////////////////////////////////////////////////
// CDisplayDoc diagnostics

#ifdef _DEBUG
void CDisplayDoc::AssertValid() const
{
	CDocument::AssertValid();
}

void CDisplayDoc::Dump(CDumpContext& dc) const
{
	CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CDisplayDoc commands
BOOL CDisplayDoc::Create1(CSize size, WORD nBitCount)
{

	
	CFile fp;
	CFileException e;
	CString pFileName="test.bmp";
	if( !fp.Open( pFileName, CFile::shareDenyWrite | CFile::typeBinary, &e ) )
	{
		return false;

	}



	BITMAPFILEHEADER   bmfheader;
	DWORD              dwsize;
	dwsize=fp.GetLength();
	if(fp.Read((LPSTR)&bmfheader,sizeof(bmfheader))!=
		sizeof(bmfheader))
		return false;
	if(bmfheader.bfType!=DIB_HEADER_MARKER)
		return false;
	m_hDib = (HGLOBAL) ::GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, dwsize);
	if (m_hDib == NULL)
		return FALSE;	
	fp.SeekToBegin();
	LPSTR pDib = (LPSTR) ::GlobalLock((HGLOBAL) m_hDib);
	length=bmfheader.bfOffBits;
	if(fp.Read(pDib,length)!=length)
		return false;		
	if(fp.ReadHuge(pDib+length,dwsize-length)!=dwsize-length)
		return false;




/*	long tmpi=m_nScanWidth*m_nHeight;
	long tmpj;
	long lk=length;
	char  ch=0;
	for (tmpj=0;tmpj<tmpi;tmpj++)
	{
		*(pDib+lk+tmpj)=ch;
		ch++;
		ch=ch%255;
	}  */
	::GlobalUnlock((HGLOBAL) m_hDib);
	fp.Close();
  return true;
}

void CDisplayDoc::OnSingle() 
{
	// TODO: Add your command handler code here
	
	if (m_hDib)
	{
		::GlobalFree(m_hDib);
	}	
	if(!Create1(CSize(640,480),8))
	{
		MessageBox(NULL,"初始化图象失败","信息提示",49);
		return ;
	}
	UpdateAllViews(NULL);	

}



//
bool CDisplayDoc::bOpenDriver (HANDLE * phDeviceHandle, PCHAR devname)
{
   char completeDeviceName[64] = "";
   char pcMsg[64] = "";
   
   strcat (completeDeviceName,
      "\\\\.\\"
      );
   
   strcat (completeDeviceName,
		    devname
          );
   
   *phDeviceHandle = CreateFile(   completeDeviceName,
      GENERIC_WRITE,
      FILE_SHARE_WRITE,
      NULL,
      OPEN_EXISTING,
      0,
      NULL);
   
   if (*phDeviceHandle == INVALID_HANDLE_VALUE) {
      return (FALSE);
   } else {
      return (TRUE);
   } /*else*/
}