directdraw的多画面显示rgb 分类： VC++ 2013-11-13 08:51 514人阅读 评论(0) 收藏

// showpicDlg.cpp : 实现文件

//

#include "stdafx.h"

#include "showpic.h"

#include "showpicDlg.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#endif

// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog

{

public:

CAboutDlg();

// 对话框数据

enum { IDD = IDD_ABOUTBOX };

protected:

virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持

// 实现

protected:

DECLARE_MESSAGE_MAP()

};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)

{

}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)

{

CDialog::DoDataExchange(pDX);

}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)

END_MESSAGE_MAP()

// CshowpicDlg 对话框

CshowpicDlg::CshowpicDlg(CWnd* pParent /*=NULL*/)

: CDialog(CshowpicDlg::IDD, pParent)

{

m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CshowpicDlg::DoDataExchange(CDataExchange* pDX)

{

CDialog::DoDataExchange(pDX);

DDX_Control(pDX, IDC_SCREEN, m_screen);

}

BEGIN_MESSAGE_MAP(CshowpicDlg, CDialog)

ON_WM_SYSCOMMAND()

ON_WM_PAINT()

ON_WM_QUERYDRAGICON()

//}}AFX_MSG_MAP

ON_BN_CLICKED(IDC_BUTTON1, &CshowpicDlg::OnBnClickedButton1)

ON_BN_CLICKED(IDC_BUTTON2, &CshowpicDlg::OnBnClickedButton2)

ON_WM_TIMER()

END_MESSAGE_MAP()

// CshowpicDlg 消息处理程序

BOOL CshowpicDlg::OnInitDialog()

{

CDialog::OnInitDialog();

// 将“关于...”菜单项添加到系统菜单中。

// IDM_ABOUTBOX 必须在系统命令范围内。

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);

}

}

// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动

// 执行此操作

SetIcon(m_hIcon, TRUE); // 设置大图标

SetIcon(m_hIcon, FALSE); // 设置小图标

// TODO: 在此添加额外的初始化代码

m_screen.SetWindowPos(&CWnd::wndBottom,0,0,960,720, SWP_NOMOVE | SWP_SHOWWINDOW);

return TRUE; // 除非将焦点设置到控件，否则返回 TRUE

}

void CshowpicDlg::OnSysCommand(UINT nID, LPARAM lParam)

{

if ((nID & 0xFFF0) == IDM_ABOUTBOX)

{

CAboutDlg dlgAbout;

dlgAbout.DoModal();

}

else

{

CDialog::OnSysCommand(nID, lParam);

}

}

// 如果向对话框添加最小化按钮，则需要下面的代码

// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，

// 这将由框架自动完成。

void CshowpicDlg::OnPaint()

{

if (IsIconic())

{

CPaintDC dc(this); // 用于绘制的设备上下文

SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

// 使图标在工作矩形中居中

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;

// 绘制图标

dc.DrawIcon(x, y, m_hIcon);

}

else

{

CDialog::OnPaint();

}

}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。

//

HCURSOR CshowpicDlg::OnQueryDragIcon()

{

return static_cast<HCURSOR>(m_hIcon);

}

BYTE *buf[6];

CBitmap m_bitmap;

void CshowpicDlg::OnBnClickedButton1()

{

// TODO: 在此添加控件通知处理程序代码

for(int i=0;i<6;i++)

{

HBITMAP m_hBitmap;//位图句柄

BITMAP bm;//存放位图信息的结构

CString strFilename,str;

CFileDialog openBox(TRUE,NULL,_T(""),OFN_HIDEREADONLY,_T("bmp(*.bmp)|*.bmp|ALLFiles(*.*)|*.*||"),NULL);

openBox.m_ofn.lpstrTitle=_T("打开数据文件640*480_bmp");

INT_PTR nResult = openBox.DoModal();

// 如果文件打开则准备播放

if (nResult == IDOK)

{

strFilename=openBox.GetPathName();

}

else

{

return;

}

strFilename.ReleaseBuffer();

str =strFilename;

m_hBitmap = (HBITMAP)::LoadImage(NULL,str,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); //装载位图

if(m_bitmap.m_hObject)

m_bitmap.DeleteObject();

m_bitmap.Attach(m_hBitmap);//将句柄与CBitmap关联起来

m_bitmap.GetBitmap(&bm);

int height = bm.bmHeight;//图像的宽高

int width = bm.bmWidth;

int widthBytes=bm.bmWidthBytes;//图像一行数据所占的字节数

int size=height*widthBytes;

buf[i]=new BYTE[size];

m_bitmap.GetBitmapBits(size,buf[i]);//得到RGB数据

}

}

#include <ddraw.h>

#pragma comment (lib,"ddraw.lib")

#pragma comment (lib,"dxguid.lib")

LPDIRECTDRAW lpdd=NULL;

LPDIRECTDRAW7 lpdd7=NULL;

LPDIRECTDRAWSURFACE7 lpddsback;

LPDIRECTDRAWSURFACE7 lpddsprimary=NULL;

LPDIRECTDRAWSURFACE7 lpddsmypage[6];

LPDIRECTDRAWPALETTE lpddpal=NULL;

DDSURFACEDESC2 ddsd;

LPDIRECTDRAWCLIPPER lpDDClipper = NULL;

//

#define _RGB32BIT(a,r,g,b) ((b) + ((g) << 8) + ((r) << 16) + ((a) << 24))

//#define SCREEN_WIDTH 640

//#define SCREEN_HEIGHT 480

RECT rcRectSrc;

RECT rcRectDest;

int index_y = 0, index_x = 0;

int height,width,widthBytes;

int R, G, B;

int SCREEN_WIDTH,SCREEN_HEIGHT;

HWND main_window_handle;

void CshowpicDlg::OnBnClickedButton2()

{

// TODO: 在此添加控件通知处理程序代码

height=width=widthBytes=0;

main_window_handle = m_screen.GetSafeHwnd();

if(DD_OK!=(DirectDrawCreate(NULL, &lpdd, NULL)))

{

return ;

}

//获取DIRECTDRAW7 接口

if(DD_OK != (lpdd->QueryInterface(IID_IDirectDraw7,(LPVOID*)&lpdd7)))

{

return ;

}

// set the cooperative level for full-screen mode

if(DD_OK != lpdd7->SetCooperativeLevel(main_window_handle, DDSCL_NORMAL))

{

return ;

}

// set the display mode to 640x480x256

#if 0 //设置分辨率

if(DD_OK!=(lpdd7->SetDisplayMode(800,600,32,0,0)))

{

AfxMessageBox("dsf");

return ;

}

#endif

// clear ddsd and set size

memset(&ddsd,0,sizeof(ddsd));

ddsd.dwSize = sizeof(ddsd);

// enable valid fields

ddsd.dwFlags=DDSD_CAPS;

ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

// create the primary surface

/*

ddsd.ddsCaps.dwCaps=DDSCAPS_BACKBUFFER;

if (FAILED(lpddsprimary->GetAttachedSurface(&ddsd.ddsCaps,&lpddsback)))

{

return -1;

}

*/

if(DD_OK!=(lpdd7->CreateSurface(&ddsd, &lpddsprimary, NULL)))

{

return ;

}

// 创建裁剪器

if (FAILED(lpdd7->CreateClipper(0, &lpDDClipper, NULL)))

return ;

// 与窗口工作区关联

if (FAILED(lpDDClipper->SetHWnd(0, main_window_handle)))

{

lpDDClipper->Release();

return ;

}

if (FAILED(lpddsprimary->SetClipper(lpDDClipper)))

{

lpDDClipper->Release();

return ;

}

{

SCREEN_WIDTH = 640 ;SCREEN_HEIGHT = 480;

}

//

memset(&ddsd,0,sizeof(ddsd));

ddsd.dwSize = sizeof(ddsd);

ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;

ddsd.dwWidth = SCREEN_WIDTH;

ddsd.dwHeight = SCREEN_HEIGHT;

ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;

//

SetTimer(1,1000,NULL);

return; //执行成功

}

int index=0;

void CshowpicDlg::OnTimer(UINT_PTR nIDEvent)

{

// TODO: 在此添加消息处理程序代码和/或调用默认值

int tmp = 0;

for(int i=0;i<6;i++)

{

if(DD_OK!=(lpdd7->CreateSurface(&ddsd, &lpddsmypage[i], NULL)))

{

return ;

}

POINT p;

p.x = 0; p.y = 0;

m_screen.ClientToScreen(&p);

tmp = (i+index)%6;

// m_screen.GetClientRect(&rcRectDest);

if(i==5)

{rcRectDest.left = 0; rcRectDest.top=0; rcRectDest.right = 640; rcRectDest.bottom = 480;}

else if(i==4)

{rcRectDest.left = 640; rcRectDest.top=0; rcRectDest.right = 960; rcRectDest.bottom = 240;}

else if(i==3)

{rcRectDest.left = 640; rcRectDest.top=240; rcRectDest.right = 960; rcRectDest.bottom = 480;}

else if(i==2)

{rcRectDest.left = 640; rcRectDest.top=480; rcRectDest.right = 960; rcRectDest.bottom = 720;}

else if(i==1)

{rcRectDest.left = 320; rcRectDest.top=480; rcRectDest.right = 640; rcRectDest.bottom = 720;}

else if(i==0)

{rcRectDest.left = 0; rcRectDest.top=480; rcRectDest.right = 320; rcRectDest.bottom = 720;}

OffsetRect(&rcRectDest, p.x, p.y);

SetRect(&rcRectSrc, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);

/////////////////////////////////////////////////////////////

if(DD_OK != lpddsmypage[i]->Lock(NULL,&ddsd,DDLOCK_WAIT|DDLOCK_SURFACEMEMORYPTR,NULL))

{

return ;

}

DWORD *bmp_buffer = (DWORD *)ddsd.lpSurface;

memcpy(bmp_buffer,buf[tmp],SCREEN_WIDTH*SCREEN_HEIGHT*4);

if(DD_OK != lpddsmypage[i]->Unlock(NULL))

{

return ;

}

if(DD_OK != lpddsprimary->Blt( &rcRectDest, lpddsmypage[i], &rcRectSrc, DDBLT_WAIT, NULL))

{

return ;

}

if(lpddsmypage)

{

lpddsmypage[i]->Release();

lpddsmypage[i]=NULL;

}

}

index++;

CDialog::OnTimer(nIDEvent);

}