DirectDraw常用功能代码记录

记录一些常用的代码功能段便于自己以后查找使用：

1.常用宏和函数

#define SafeRelease(lpx) if(lpx!=NULL){lpx->Release();lpx=NULL;}//释放COM#define DD_Call(callcode) if(FAILED(callcode))return DD_FALSE    //安全创建#define DD_INIT_STRUCT(ddstruct) { memset(&ddstruct,0,sizeof(ddstruct)); ddstruct.dwSize=sizeof(ddstruct); }    //初始化结构体#define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0)    //按键判断#define KEYUP(vk_code)   ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1)    #define _RGB16BIT565(r,g,b) ((b & 31) + ((g & 63) << 5) + ((r & 31) << 11))//颜色设置#define _RGB16BIT555(r,g,b) ((b & 31) + ((g & 31) << 5) + ((r & 31) << 10))#define _RGB32BIT(a,r,g,b) ((b) + ((g) << 8) + ((r) << 16) + ((a) << 24))/*每个像素16位，用此函数前先锁住表面。*/inline void Plot_Pixel_Faster16(int x, int y,int red, int green, int blue,USHORT *video_buffer, int lpitch16){    USHORT pixel = _RGB16BIT565(red,green,blue);    video_buffer[x + y*lpitch16] = pixel;}inline void Plot_Pixel_32(int x, int y,int alpha,int red, int green, int blue,UINT *video_buffer, int lpitch32){        UINT pixel = _RGB32BIT(alpha,red,green,blue);    video_buffer[x + y*lpitch32] = pixel;}

2.初始化Device

bool graphicApp::initDevice(HWND hwnd,D3DDEVTYPE dType,bool windowed,int _width,int _height){    width=_width;    height=_height;    IDirect3D9* _direct=0;    HRESULT result=0;    D3DCAPS9 caps;    _direct=Direct3DCreate9(D3D_SDK_VERSION);    if (!_direct)    {        MessageBoxA(0,"create Directx filed!","create error",MB_OK);        return false;    }    _direct->GetDeviceCaps(D3DADAPTER_DEFAULT,dType,&caps);    int vp=0;    if (caps.DevCaps&D3DDEVCAPS_HWTRANSFORMANDLIGHT)    {        vp=D3DCREATE_HARDWARE_VERTEXPROCESSING;    }else    {        vp=D3DCREATE_SOFTWARE_VERTEXPROCESSING;    }    D3DPRESENT_PARAMETERS d3pp;    d3pp.BackBufferWidth=width;    d3pp.BackBufferHeight=height;    d3pp.BackBufferFormat=D3DFMT_A8R8G8B8;    d3pp.BackBufferCount=1;    d3pp.MultiSampleType=D3DMULTISAMPLE_NONE;    d3pp.MultiSampleQuality=0;    d3pp.SwapEffect=D3DSWAPEFFECT_DISCARD;    d3pp.hDeviceWindow=hwnd;    d3pp.Windowed=windowed;    d3pp.EnableAutoDepthStencil=true;    d3pp.AutoDepthStencilFormat=D3DFMT_D24S8;    d3pp.Flags=0;    d3pp.FullScreen_RefreshRateInHz=D3DPRESENT_RATE_DEFAULT;    d3pp.PresentationInterval=D3DPRESENT_INTERVAL_IMMEDIATE;    result=_direct->CreateDevice(D3DADAPTER_DEFAULT,dType,hwnd,vp,&d3pp,&pDevice);    if (FAILED(result))    {        MessageBoxA(0,"create Device filed!","create error",MB_OK);    }    _direct->Release();return true;}

3.设置协作等级

 //窗口模式        if (FAILED(m_pDD->SetCooperativeLevel(m_hwnd, DDSCL_NORMAL)))            return false;        //全屏模式        if (FAILED(m_pDD->SetCooperativeLevel(m_hwnd, DDSCL_FULLSCREEN | DDSCL_ALLOWMODEX | DDSCL_EXCLUSIVE | DDSCL_ALLOWREBOOT)))            return false;

4.设置模式

  if (FAILED(m_pDD->SetDisplayMode(m_iWidth,m_iHeight,m_iBpp,0,0)))            return false;

5.创建主表面

DDSURFACEDESC2 ddsd;        //页面描述memset(&ddsd,0,sizeof(ddsd));ddsd.dwSize=sizeof(ddsd);ddsd.dwFlags=DDSD_CAPS;ddsd.ddsCaps.dwCaps=DDSCAPS_PRIMARYSURFACE;hresult=m_pDD->CreateSurface(&ddsd,&lpDDSPrimary,NULL);if (hresult!=DD_OK)    　　return false;

6. 创建离屏页面

//创建离屏表面DDSURFACEDESC2 ddsd;        //页面描述memset(&ddsd,0,sizeof(ddsd));ddsd.dwSize=sizeof(ddsd); ddsd.dwFlags=DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS;ddsd.ddsCaps.dwCaps=DDSCAPS_OFFSCREENPLAIN;ddsd.dwWidth=m_iWidth;ddsd.dwHeight=m_iHeight;if(m_pDD->CreateSurface(&ddsd,&lpDDSTempBuffer,NULL)!=DD_OK)            return false;

7.创建后背缓冲区（只有在全屏模式下才可以）

DD_INIT_STRUCT(ddsd);ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;    // 增加DDSD_BACKBUFFERCOUNT 表明dwBackBufferCount有效    ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE  | DDSCAPS_COMPLEX | DDSCAPS_FLIP; //  多了 DDSCAPS_COMPLEX | DDSCAPS_FLIP    ddsd.dwBackBufferCount = 1;    // 后备缓冲的个数    if (FAILED(lpdd->CreateSurface(&ddsd, &lpddsprimary, NULL)))            return 0;   ddsd.ddsCaps.dwCaps    = DDSCAPS_BACKBUFFER;    // 请求一个后备缓冲        if (FAILED(lpddsprimary->GetAttachedSurface(&ddsd.ddsCaps, &lpddsback)))  // 得到后备缓冲             return 0;

8.创建裁剪器

//裁剪器LPDIRECTDRAWCLIPPER lpDDClipper=NULL;if (FAILED(m_pDD->CreateClipper(0,&lpDDClipper,NULL)))return false;if (FAILED(lpDDClipper->SetHWnd(0,m_hwnd)))return false;if (FAILED(lpDDSPrimary->SetClipper(lpDDClipper)))return false;LPRGNDATA region_data;

9. 创建调色板

LPDIRECTDRAWPALETTE lpPalette;        //调色板PALETTEENTRY palette[256];for(int i=1;i<255;i++){    palette[i].peRed=rand()%256;    palette[i].peGreen=rand()%256;    palette[i].peBlue=rand()%256;    palette[i].peFlags=PC_NOCOLLAPSE;}palette[0].peRed=0;palette[0].peGreen=0;palette[0].peBlue=0;palette[0].peFlags=PC_NOCOLLAPSE;palette[255].peRed=255;palette[255].peGreen=255;palette[255].peBlue=255;palette[255].peFlags=PC_NOCOLLAPSE;if (m_pDD->CreatePalette(DDPCAPS_8BIT|DDPCAPS_ALLOW256|DDPCAPS_INITIALIZE,palette,&lpPalette,NULL)!=DD_OK)return false;if (FAILED(lpDDSPrimary->SetPalette(lpPalette)))

10.用DDBLTFX的color填充表面

DDBLTFX ddfx;DD_INIT_STRUCT(ddfx);int red=rand()%256;int green=rand()%256;int blue=rand()%256;ddfx.dwFillColor=_RGB32BIT(0,red,green,blue);RECT dest_rect;dest_rect.left=rand()%m_iWidth;dest_rect.right=rand()%m_iWidth;dest_rect.top=rand()%m_iHeight;dest_rect.bottom=rand()%m_iHeight;dest_rect.left=250;dest_rect.right=400;dest_rect.top=250;dest_rect.bottom=400;hret=lpDDSPrimary->Blt(&dest_rect,NULL,NULL,DDBLT_COLORFILL|DDBLT_WAIT,&ddfx);if (hret!=DD_OK){    char temp[512];    //memset(temp,sizeof(temp));    sprintf_s(temp,"Blt Error:%s",DXGetErrorString(hret));    MessageBox(NULL,temp,"ERROR",0);    return false;}return false;

11.用另一个表面填充表面

RECT src_rect;src_rect.left=0;src_rect.top=0;src_rect.right=m_iWidth;src_rect.bottom=m_iHeight;//用客户端位置进行bltRECT m_x2d_ClientRect;GetClientRect(m_hwnd, &m_x2d_ClientRect);ClientToScreen(m_hwnd, (LPPOINT)&m_x2d_ClientRect);ClientToScreen(m_hwnd, (LPPOINT)&m_x2d_ClientRect+1);hret=lpDDSPrimary->Blt(&m_x2d_ClientRect,lpBackBuffer,&src_rect,DDBLT_WAIT,NULL);if (hret!=DD_OK){    char temp[512];    sprintf_s(temp,"Blt Error:%s",DXGetErrorString(hret));    MessageBox(NULL,temp,"ERROR",0);    return false;}

12.随机设置32位色深表面

DD_INIT_STRUCT(ddsd);if(FAILED(lpDDSPrimary->Lock(NULL,&ddsd,DDLOCK_SURFACEMEMORYPTR|DDLOCK_WAIT,NULL)))return false;int memPitch=(int)(ddsd.lPitch>>2);UNINT *video_buffer=(UNINT *)ddsd.lpSurface;for (int i=0;i<1000;i++){    int x=rand()%m_iWidth;    int y=rand()%m_iHeight;    int red=rand()%256;    int green=rand()%256;    int blue=rand()%256;    Plot_Pixel_32(x,y,0,red,green,blue,video_buffer,memPitch);}if(FAILED(lpDDSPrimary->Unlock(NULL)))return false;

13.HDC载入位图到表面

HBITMAP hBitmap;hBitmap = (HBITMAP)LoadImage(NULL, "test.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);HDC hdcImage;HDC hdc;BITMAP bm;lpBackBuffer->Restore();hdcImage = CreateCompatibleDC(NULL);SelectObject(hdcImage, hBitmap);GetObject(hBitmap, sizeof(bm), &bm);lpBackBuffer->GetDC(&hdc);BitBlt(hdc, 0, 0, 800, 600, hdcImage, 0, 0, SRCCOPY);lpBackBuffer->ReleaseDC(hdc);DeleteDC(hdcImage);

14.清空一个页面

DDBLTFX ddBltFx;ddBltFx.dwSize=sizeof(DDBLTFX);ddBltFx.dwFillPixel=0;DDS[SBuffer]->Blt(NULL,NULL,NULL,DDBLT_WAIT|DDBLT_COLORFILL,&ddBltFx);

转载来自：http://www.cnblogs.com/gamesky/archive/2012/07/28/2612865.html