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directdraw的多畫麵顯示rgb
// showpicDlg.cpp : 實現文件
//
#include "stdafx.h"
#include "showpic.h"
#include "showpicDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用於應用程序“關於”菜單項的 CAboutDlg 對話框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 對話框數據
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 實現
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 對話框
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 消息處理程序
BOOL CshowpicDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 將“關於...”菜單項添加到係統菜單中。
// IDM_ABOUTBOX 必須在係統命令範圍內。
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);
}
}
// 設置此對話框的圖標。當應用程序主窗口不是對話框時，框架將自動
// 執行此操作
SetIcon(m_hIcon, TRUE); // 設置大圖標
SetIcon(m_hIcon, FALSE); // 設置小圖標
// TODO: 在此添加額外的初始化代碼
m_screen.SetWindowPos(&CWnd::wndBottom,0,0,960,720, SWP_NOMOVE | SWP_SHOWWINDOW);
return TRUE; // 除非將焦點設置到控件，否則返回 TRUE
}
void CshowpicDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向對話框添加最小化按鈕，則需要下麵的代碼
// 來繪製該圖標。對於使用文檔/視圖模型的 MFC 應用程序，
// 這將由框架自動完成。
void CshowpicDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用於繪製的設備上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使圖標在工作矩形中居中
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;
// 繪製圖標
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
//當用戶拖動最小化窗口時係統調用此函數取得光標顯示。
//
HCURSOR CshowpicDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
BYTE *buf[6];
CBitmap m_bitmap;
void CshowpicDlg::OnBnClickedButton1()
{
// TODO: 在此添加控件通知處理程序代碼
for(int i=0;i<6;i++)
{
HBITMAP m_hBitmap;//位圖句柄
BITMAP bm;//存放位圖信息的結構
CString strFilename,str;
CFileDialog openBox(TRUE,NULL,_T(""),OFN_HIDEREADONLY,_T("bmp(*.bmp)|*.bmp|ALLFiles(*.*)|*.*||"),NULL);
openBox.m_ofn.lpstrTitle=_T("打開數據文件640*480_bmp");
INT_PTR nResult = openBox.DoModal();
// 如果文件打開則準備播放
if (nResult == IDOK)
{
strFilename=openBox.GetPathName();
}
else
{
return;
}
strFilename.ReleaseBuffer();
str =strFilename;
m_hBitmap = (HBITMAP)::LoadImage(NULL,str,IMAGE_BITMAP,0,0,LR_LOADFROMFILE); //裝載位圖
if(m_bitmap.m_hObject)
m_bitmap.DeleteObject();
m_bitmap.Attach(m_hBitmap);//將句柄與CBitmap關聯起來
m_bitmap.GetBitmap(&bm);
int height = bm.bmHeight;//圖像的寬高
int width = bm.bmWidth;
int widthBytes=bm.bmWidthBytes;//圖像一行數據所占的字節數
int size=height*widthBytes;
buf[i]=new BYTE[size];
m_bitmap.GetBitmapBits(size,buf[i]);//得到RGB數據
}
}
#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: 在此添加控件通知處理程序代碼
height=width=widthBytes=0;
main_window_handle = m_screen.GetSafeHwnd();
if(DD_OK!=(DirectDrawCreate(NULL, &lpdd, NULL)))
{
return ;
}
//獲取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 //設置分辨率
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 ;
}
// 創建裁剪器
if (FAILED(lpdd7->CreateClipper(0, &lpDDClipper, NULL)))
return ;
// 與窗口工作區關聯
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; //執行成功
}
int index=0;
void CshowpicDlg::OnTimer(UINT_PTR nIDEvent)
{
// TODO: 在此添加消息處理程序代碼和/或調用默認值
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);
}
最後更新：2017-04-03 14:54:18