vo_directx.c

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    //try to create an overlay surface using one of the pixel formats in our global list
	i=0;
    do 
    {
   		ddsdOverlay.ddpfPixelFormat=g_ddpf[i].g_ddpfOverlay;
        ddrval = g_lpdd->lpVtbl->CreateSurface(g_lpdd,&ddsdOverlay, &g_lpddsOverlay, NULL);
        if (ddrval == DD_OK)
		{
			 mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><FORMAT OVERLAY>%i %s supported\n",i,g_ddpf[i].img_format_name);
			 g_ddpf[i].drv_caps = VFCAP_CSP_SUPPORTED |VFCAP_OSD |VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_HWSCALE_UP;
			 formatcount++;}
	    else mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><FORMAT OVERLAY>%i %s not supported\n",i,g_ddpf[i].img_format_name);
		if (g_lpddsOverlay != NULL) {g_lpddsOverlay->lpVtbl->Release(g_lpddsOverlay);g_lpddsOverlay = NULL;}
	} while( ++i < NUM_FORMATS );
    mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>Your card supports %i of %i overlayformats\n",formatcount, NUM_FORMATS);
	if (formatcount == 0)
	{
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><WARN>Your card supports overlay, but we couldn't create one\n");
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>This can have the following reasons:\n");
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>- you are already using an overlay with another app\n");
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>- you don't have enough videomemory\n");
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>- vo_directx doesn't support the cards overlay pixelformat\n");
		return 1;
	}
    if(capsDrv.dwFXCaps & DDFXCAPS_OVERLAYMIRRORLEFTRIGHT)mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>can mirror left right\n"); //I don't have hardware which
    if(capsDrv.dwFXCaps & DDFXCAPS_OVERLAYMIRRORUPDOWN )mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>can mirror up down\n");      //supports those send me one and I'll implement ;)
	return 0;		
}

//find out the Pixelformat of the Primary Surface
static uint32_t Directx_CheckPrimaryPixelformat()
{	
	uint32_t i=0;
    uint32_t formatcount = 0;
	DDPIXELFORMAT	ddpf;
	DDSURFACEDESC2   ddsd;
    HDC             hdc;
    HRESULT         hres;
	COLORREF        rgbT=RGB(0,0,0);
	mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>checking primary surface\n");
	memset( &ddpf, 0, sizeof( DDPIXELFORMAT ));
    ddpf.dwSize = sizeof( DDPIXELFORMAT );
    //we have to create a primary surface first
	if(Directx_CreatePrimarySurface()!=0)return 1;
	if(g_lpddsPrimary->lpVtbl->GetPixelFormat( g_lpddsPrimary, &ddpf ) != DD_OK )
	{
		mp_msg(MSGT_VO, MSGL_FATAL ,"<vo_directx><FATAL ERROR>can't get pixelformat\n");
		return 1;
	}
    while ( i < NUM_FORMATS )
    {
	   if (g_ddpf[i].g_ddpfOverlay.dwRGBBitCount == ddpf.dwRGBBitCount)
	   {
           if (g_ddpf[i].g_ddpfOverlay.dwRBitMask == ddpf.dwRBitMask)
		   {
			   mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><FORMAT PRIMARY>%i %s supported\n",i,g_ddpf[i].img_format_name);
			   g_ddpf[i].drv_caps = VFCAP_CSP_SUPPORTED |VFCAP_OSD;
			   formatcount++;
               primary_image_format=g_ddpf[i].img_format;     
		   }
	   }
	   i++;
    }
    //get the colorkey for overlay mode
	destcolorkey = CLR_INVALID;
    if (windowcolor != CLR_INVALID && g_lpddsPrimary->lpVtbl->GetDC(g_lpddsPrimary,&hdc) == DD_OK)
    {
        rgbT = GetPixel(hdc, 0, 0);     
        SetPixel(hdc, 0, 0, windowcolor);  
        g_lpddsPrimary->lpVtbl->ReleaseDC(g_lpddsPrimary,hdc);
    }
    // read back the converted color
    ddsd.dwSize = sizeof(ddsd);
    while ((hres = g_lpddsPrimary->lpVtbl->Lock(g_lpddsPrimary,NULL, &ddsd, 0, NULL)) == DDERR_WASSTILLDRAWING)
        ;
    if (hres == DD_OK)
    {
        destcolorkey = *(DWORD *) ddsd.lpSurface;                
        if (ddsd.ddpfPixelFormat.dwRGBBitCount < 32)
            destcolorkey &= (1 << ddsd.ddpfPixelFormat.dwRGBBitCount) - 1;  
        g_lpddsPrimary->lpVtbl->Unlock(g_lpddsPrimary,NULL);
    }
    if (windowcolor != CLR_INVALID && g_lpddsPrimary->lpVtbl->GetDC(g_lpddsPrimary,&hdc) == DD_OK)
    {
        SetPixel(hdc, 0, 0, rgbT);
        g_lpddsPrimary->lpVtbl->ReleaseDC(g_lpddsPrimary,hdc);
    }
	//release primary
	g_lpddsPrimary->lpVtbl->Release(g_lpddsPrimary);
	g_lpddsPrimary = NULL;
	if(formatcount==0)
	{
		mp_msg(MSGT_VO, MSGL_FATAL ,"<vo_directx><FATAL ERROR>Unknown Pixelformat\n");
		return 1;
	}
	return 0;
}

//function handles input
static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
    {
        case WM_MOUSEACTIVATE:
            return MA_ACTIVATEANDEAT;       
	    case WM_NCACTIVATE:
        {
            if(vidmode && adapter_count > 2) //only disable if more than one adapter.
			    return 0;
			break;
		}
		case WM_DESTROY:
		{
			PostQuitMessage(0);
			return 0;
		}
        case WM_CLOSE:
		{
			mplayer_put_key(KEY_CLOSE_WIN);
			return 0;
		}
        case WM_WINDOWPOSCHANGED:
		{
			//printf("Windowposchange\n");
			if(g_lpddsBack != NULL)  //or it will crash with -vm
			{
				Directx_ManageDisplay();
			}
		    break;
		}
        case WM_SYSCOMMAND:
		{
			switch (wParam)
			{   //kill screensaver etc. 
				//note: works only when the window is active
				//you can workaround this by disabling the allow screensaver option in
				//the link to the app
				case SC_SCREENSAVE:                
				case SC_MONITORPOWER:
                mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>killing screensaver\n" );
                return 0;                      
				case SC_MAXIMIZE:
					if (!vo_fs) control(VOCTRL_FULLSCREEN, NULL);
                return 0;                      
			}
			break;
		}
        case WM_KEYDOWN:
		{
			switch (wParam)
			{
				case VK_LEFT:
					{mplayer_put_key(KEY_LEFT);break;}      
                case VK_UP:
					{mplayer_put_key(KEY_UP);break;} 
                case VK_RIGHT:
					{mplayer_put_key(KEY_RIGHT);break;} 
	            case VK_DOWN:
					{mplayer_put_key(KEY_DOWN);break;} 
	            case VK_TAB:
					{mplayer_put_key(KEY_TAB);break;}
		        case VK_BACK:
					{mplayer_put_key(KEY_BS);break;}
		        case VK_DELETE:
					{mplayer_put_key(KEY_DELETE);break;}
		        case VK_INSERT:
					{mplayer_put_key(KEY_INSERT);break;}
		        case VK_HOME:
					{mplayer_put_key(KEY_HOME);break;}
		        case VK_END:
					{mplayer_put_key(KEY_END);break;}
		        case VK_PRIOR:
			        {mplayer_put_key(KEY_PAGE_UP);break;}
		        case VK_NEXT:
			        {mplayer_put_key(KEY_PAGE_DOWN);break;}
		        case VK_ESCAPE:
					{mplayer_put_key(KEY_ESC);break;}
			}
            break;
		}
        case WM_CHAR:
		{
			mplayer_put_key(wParam);
			break;
		}
        case WM_LBUTTONDOWN:
		{
			if (!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN0);
			break;
		}
        case WM_MBUTTONDOWN:
		{
			if (!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN1);
			break;
		}
        case WM_RBUTTONDOWN:
		{
			if (!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN2);
			break;
		}
		case WM_LBUTTONDBLCLK:
		{
			if(!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN0_DBL);
			break;
		}
		case WM_MBUTTONDBLCLK:
		{
			if(!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN1_DBL);
			break;
		}
		case WM_RBUTTONDBLCLK:
		{
			if(!vo_nomouse_input)
				mplayer_put_key(MOUSE_BTN2_DBL);
			break;
		}
        case WM_MOUSEWHEEL:
		{
			int x;
			if (vo_nomouse_input)
				break;
			x = GET_WHEEL_DELTA_WPARAM(wParam);
			if (x > 0)
				mplayer_put_key(MOUSE_BTN3);
			else
				mplayer_put_key(MOUSE_BTN4);
			break;
		}
        case WM_XBUTTONDOWN:
		{
			if (vo_nomouse_input)
				break;
			if (HIWORD(wParam) == 1)
				mplayer_put_key(MOUSE_BTN5);
			else
				mplayer_put_key(MOUSE_BTN6);
			break;
		}
        case WM_XBUTTONDBLCLK:
		{
			if (vo_nomouse_input)
				break;
			if (HIWORD(wParam) == 1)
				mplayer_put_key(MOUSE_BTN5_DBL);
			else
				mplayer_put_key(MOUSE_BTN6_DBL);
			break;
		}
		
    }
	return DefWindowProc(hWnd, message, wParam, lParam);
}


static int preinit(const char *arg)
{
    HINSTANCE hInstance = GetModuleHandle(NULL);
    char exedir[MAX_PATH];
    WNDCLASS   wc;
	if(arg)
	{
		if(strstr(arg,"noaccel"))
		{
			mp_msg(MSGT_VO,MSGL_V,"<vo_directx><INFO>disabled overlay\n");
		    nooverlay = 1;
		}
	}
	/*load icon from the main app*/
    if(GetModuleFileName(NULL,exedir,MAX_PATH))
    {
        mplayericon = ExtractIcon( hInstance, exedir, 0 );
  	}
    if(!mplayericon)mplayericon=LoadIcon(NULL,IDI_APPLICATION);
    mplayercursor = LoadCursor(NULL, IDC_ARROW);
    monitor_rect.right=GetSystemMetrics(SM_CXSCREEN);
    monitor_rect.bottom=GetSystemMetrics(SM_CYSCREEN);
	
    windowcolor = vo_colorkey;
    colorbrush = CreateSolidBrush(windowcolor);
    blackbrush = (HBRUSH)GetStockObject(BLACK_BRUSH);
    wc.style         =  CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
    wc.lpfnWndProc   =  WndProc;
    wc.cbClsExtra    =  0;
    wc.cbWndExtra    =  0;
    wc.hInstance     =  hInstance;
    wc.hCursor       =  mplayercursor;
    wc.hIcon         =  mplayericon;
    wc.hbrBackground =  vidmode ? blackbrush : colorbrush;
    wc.lpszClassName =  WNDCLASSNAME_WINDOWED;
    wc.lpszMenuName  =  NULL;
    RegisterClass(&wc);
    if (WinID != -1) hWnd = WinID;
    else
    hWnd = CreateWindowEx(vidmode?WS_EX_TOPMOST:0,
        WNDCLASSNAME_WINDOWED,"",(vidmode || !vo_border)?WS_POPUP:WNDSTYLE,
        CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,NULL,NULL,hInstance,NULL);
    wc.hbrBackground = blackbrush;
    wc.lpszClassName = WNDCLASSNAME_FULLSCREEN;
    RegisterClass(&wc);
	
	if (Directx_InitDirectDraw()!= 0)return 1;          //init DirectDraw
	
    if(!vidmode)hWndFS = CreateWindow(WNDCLASSNAME_FULLSCREEN,"MPlayer Fullscreen",WS_POPUP,monitor_rect.left,monitor_rect.top,monitor_rect.right-monitor_rect.left,monitor_rect.bottom-monitor_rect.top,hWnd,NULL,hInstance,NULL);			
    mp_msg(MSGT_VO, MSGL_DBG3 ,"<vo_directx><INFO>initial mplayer windows created\n");
    
    if (Directx_CheckPrimaryPixelformat()!=0)return 1;
	if (!nooverlay && Directx_CheckOverlayPixelformats() == 0)        //check for supported hardware
	{
		mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>hardware supports overlay\n");
		nooverlay = 0;
 	} 
	else   //if we can't have overlay we create a backpuffer with the same imageformat as the primary surface
	{
       	mp_msg(MSGT_VO, MSGL_V ,"<vo_directx><INFO>using backpuffer\n");
		nooverlay = 1;
	}
 	mp_msg(MSGT_VO, MSGL_DBG3 ,"<vo_directx><INFO>preinit succesfully finished\n");
	return 0;
}

static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y )
{
	uint8_t *s;
    uint8_t *d;
    uint32_t i=0, uvstride=dstride/2;
	// copy Y
    d=image+dstride*y+x;                
    s=src[0];                           
    mem2agpcpy_pic(d,s,w,h,dstride,stride[0]);
    
	w/=2;h/=2;x/=2;y/=2;
	
	// copy U
    d=image+dstride*image_height + uvstride*y+x;
    if(image_format == IMGFMT_YV12)s=src[2];
	else s=src[1];
    mem2agpcpy_pic(d,s,w,h,uvstride,stride[1]);
	
	// copy V
    d=image+dstride*image_height +uvstride*(image_height/2) + uvstride*y+x;
    if(image_format == IMGFMT_YV12)s=src[1];
	else s=src[2];
    mem2agpcpy_pic(d,s,w,h,uvstride,stride[2]);
    return 0;
}

static void flip_page(void)
{
   	HRESULT dxresult;
	g_lpddsBack->lpVtbl->Unlock (g_lpddsBack,NULL);
	if (vo_doublebuffering) 
    {
		// flip to the next image in the sequence  
		dxresult = g_lpddsOverlay->lpVtbl->Flip( g_lpddsOverlay,NULL, DDFLIP_WAIT);
		if(dxresult == DDERR_SURFACELOST)
		{
			mp_msg(MSGT_VO, MSGL_ERR,"<vo_directx><ERROR><vo_directx><INFO>Restoring Surface\n");
			g_lpddsBack->lpVtbl->Restore( g_lpddsBack );
		    dxresult = g_lpddsOverlay->lpVtbl->Flip( g_lpddsOverlay,NULL, DDFLIP_WAIT);
		}
		if(dxresult != DD_OK)mp_msg(MSGT_VO, MSGL_ERR,"<vo_directx><ERROR>can't flip page\n");
    }
	if(nooverlay) 
	{
		DDBLTFX  ddbltfx;
        // ask for the "NOTEARING" option
	    memset( &ddbltfx, 0, sizeof(DDBLTFX) );
        ddbltfx.dwSize = sizeof(DDBLTFX);
        ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
        g_lpddsPrimary->lpVtbl->Blt(g_lpddsPrimary, &rd, g_lpddsBack, NULL, DDBLT_WAIT, &ddbltfx);
    }	
	g_lpddsBack->lpVtbl->Lock(g_lpddsBack,NULL,&ddsdsf, DDLOCK_NOSYSLOCK | DDLOCK_WAIT , NULL);
    if(vo_directrendering && (dstride != ddsdsf.lPitch)){
      mp_msg(MSGT_VO,MSGL_WARN,"<vo_directx><WARN>stride changed !!!! disabling direct rendering\n");
      vo_directrendering=0;
    }
	dstride = ddsdsf.lPitch;
    image = ddsdsf.lpSurface;
}

static int draw_frame(uint8_t *src[])
{
  	fast_memcpy( image, *src, dstride * image_height );
	return 0;
}

static uint32_t get_image(mp_image_t *mpi)
{
    if(mpi->flags&MP_IMGFLAG_READABLE) {mp_msg(MSGT_VO, MSGL_V,"<vo_directx><ERROR>slow video ram\n");return VO_FALSE;} 
    if(mpi->type==MP_IMGTYPE_STATIC) {mp_msg(MSGT_VO, MSGL_V,"<vo_directx><ERROR>not static\n");return VO_FALSE;}
    if((mpi->width==dstride) || (mpi->flags&(MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH)))
	{