C++ D_INFO函數代碼示例

static DFBResult driver_open_device(CoreInputDevice *device,
                                    unsigned int number,
                                    InputDeviceInfo *info,
                                    void **driver_data)
{
     int fd;
     MuTData *data;

     /* open device */
     fd = MuTOpenDevice (dfb_config->mut_device);
     D_INFO("MuTouch:driver_open_device %s fd %d\n", dfb_config->mut_device,fd);

     if (fd < 0) {
          return DFB_INIT;
     }

     data = D_CALLOC (1, sizeof(MuTData));
     if (!data) {
          close (fd);
          return D_OOM ();
     }

     data->fd     = fd;
     data->device = device;

     /* Must define the correct resolution of screen */
     data->screen_width  = MuT_SCREENWIDTH;
     data->screen_height = MuT_SCREENHEIGHT;

     /* The following variable are defined to adjust the orientation of
      * the touchscreen. Variables are either max screen height/width or 0.
      */
     data->min_x = MuT_MINX;
     data->min_y = MuT_MINY;

     /* fill device info structure */
     snprintf(info->desc.name, DFB_INPUT_DEVICE_DESC_NAME_LENGTH,
              "MuTouch");
     snprintf(info->desc.vendor, DFB_INPUT_DEVICE_DESC_VENDOR_LENGTH,
              "Microtouch");

     info->prefered_id     = DIDID_MOUSE;
     info->desc.type        = DIDTF_MOUSE;
     info->desc.caps        = DICAPS_AXES | DICAPS_BUTTONS;
     info->desc.max_axis   = DIAI_Y;
     info->desc.max_button = DIBI_LEFT;

     /* start input thread */
     data->thread = direct_thread_create (DTT_INPUT, MuTouchEventThread, data, "MuTouch Input");

     /* set private data pointer */
     *driver_data = data;

     return DFB_OK;
}

static int
error_handler_shm( Display *display, XErrorEvent *event )
{
     if (use_shm) {
          D_INFO( "X11/Display: Error! Disabling XShm.\n" );

          use_shm = false;
     }

     return 0;
}

int __init
libdirect_init(void)
{
     DirectResult__ctor();

     D_DEBUG_AT( Direct_Module, "%s()\n", __FUNCTION__ );

     D_INFO( "Direct/Module: Initializing module...\n" );

     return 0;
}

void
gGetDriverInfo( GraphicsDriverInfo *info )
{
     D_INFO( "DirectFB/Genefx: No software fallbacks supported\n" );

     snprintf( info->name, DFB_GRAPHICS_DRIVER_INFO_NAME_LENGTH, "Software Driver" );
     snprintf( info->vendor, DFB_GRAPHICS_DRIVER_INFO_VENDOR_LENGTH, "directfb.org" );

     info->version.major = 0;
     info->version.minor = 0;
}

static DFBResult
Test_RenderElements( IWater *water, IDirectFBSurface *surface )
{
     D_INFO( "Tests/Water: Testing RenderElements( %d )...\n", D_ARRAY_SIZE(m_test_elements) );

     /*
      * Render elements
      */
     _T( water->RenderElements( water, surface, m_test_elements, D_ARRAY_SIZE(m_test_elements) ) );

     return DFB_OK;
}

static DirectEnumerationResult
player_callback( void                    *ctx,
                 const VoodooPlayInfo    *info,
                 const VoodooPlayVersion *version,
                 const char              *address,
                 unsigned int             ms_since_last_seen )
{
     D_INFO( "Voodoo/Play: <%4ums> [ %-30s ]   %s%s   (vendor: %s, model: %s)\n",
             ms_since_last_seen, info->name, address, (info->flags & VPIF_LEVEL2) ? " *" : "",
             info->vendor, info->model );

     return DENUM_OK;
}

static DFBResult
system_initialize( CoreDFB *core, void **data )
{
     char       *driver;
     CoreScreen *screen;

     D_ASSERT( dfb_sdl == NULL );

     dfb_sdl = (DFBSDL*) SHCALLOC( dfb_core_shmpool(core), 1, sizeof(DFBSDL) );
     if (!dfb_sdl) {
          D_ERROR( "DirectFB/SDL: Couldn't allocate shared memory!\n" );
          return D_OOSHM();
     }

     dfb_sdl_core = core;

     dfb_fbdev_read_modes();  /* use same mode list as a fake */

     driver = getenv( "SDL_VIDEODRIVER" );
     if (driver && !strcasecmp( driver, "directfb" )) {
          D_INFO( "DirectFB/SDL: SDL_VIDEODRIVER is 'directfb', unsetting it.\n" );
          unsetenv( "SDL_VIDEODRIVER" );
     }

     /* Initialize SDL */
     if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
          D_ERROR( "DirectFB/SDL: Couldn't initialize SDL: %s\n", SDL_GetError() );

          SHFREE( dfb_core_shmpool(core), dfb_sdl );
          dfb_sdl = NULL;

          return DFB_INIT;
     }

     fusion_skirmish_init( &dfb_sdl->lock, "SDL System", dfb_core_world(core) );

     fusion_call_init( &dfb_sdl->call, dfb_sdl_call_handler, NULL, dfb_core_world(core) );

     screen = dfb_screens_register( NULL, NULL, sdlPrimaryScreenFuncs );

     dfb_layers_register( screen, NULL, sdlPrimaryLayerFuncs );

     fusion_arena_add_shared_field( dfb_core_arena( core ), "sdl", dfb_sdl );

     dfb_surface_pool_initialize( core, &sdlSurfacePoolFuncs, &dfb_sdl->sdl_pool );

     *data = dfb_sdl;

     return DFB_OK;
}

static int check_mnt_point(const char *mpoint)
{
	printf("\n\033[34m<<<<check_mnt_point\033[0m\n");
	FILE *fp;
	struct mntent *ment;
	
	fp = setmntent("/etc/mtab", "r");

	if (fp == NULL)
	{
		D_ERROR("check_mnt_point: Failed to open /etc/mtab\n");
		return -1;
	}

	while (!feof(fp))
	{
		ment = getmntent(fp);
		
		if (ment != NULL && !strcmp(ment->mnt_dir, mpoint))
		{
			D_INFO("ment->mnt_opts:%s\n", ment->mnt_opts);
			D_INFO("ment->mnt_opts:[%c%c]\n", ment->mnt_opts[0], ment->mnt_opts[1]);
			if((ment->mnt_opts[0] == 'r') && (ment->mnt_opts[1] == 'w')) //rw: writable
			{
				D_INFO("%s\n", ment->mnt_dir);
				return 0;
			}
			else
			{
				D_INFO("\033[31mRead-only device\033[0m\n");
				return -1;
			}
		}
	}
	
	return -1;
}

static void
Close( VoodooLink *link )
{
     Link *l = link->priv;

     D_INFO( "Voodoo/Link: Closing connection.\n" );

     // FIXME: how to close socket?

     direct_mutex_deinit( &l->lock );

     WSACloseEvent( l->event );

     D_FREE( l );
}

int
main( int argc, char** argv )
{
     IDirectFB *dfb = NULL; 
     ISaWMan   *saw = NULL; 
     pid_t      pid;

     D_INFO( "SaWMan/TestRun: Initializing...\n" );

     CHECK( DirectFBInit( &argc, &argv ) );

     CHECK( DirectFBCreate( &dfb ) );

     CHECK( SaWManCreate( &saw ) );

     CHECK( saw->Start( saw, ((argc > 1) && argv[1]) ? argv[1] : "Test Application", &pid ) );

     
     D_INFO( "SaWMan/TestRun: New process has pid %d.\n", pid );


//     sleep( 2 );
//     CHECK( saw->Stop( saw, pid ) );


out:
     D_INFO( "SaWMan/TestRun: Shutting down...\n" );

     if (saw)
          saw->Release( saw );

     if (dfb)
          dfb->Release( dfb );

     return 0;
}

DirectResult
DirectGetInterface( DirectInterfaceFuncs     **funcs,
                    const char                *type,
                    const char                *implementation,
                    DirectInterfaceProbeFunc   probe,
                    void                      *probe_ctx )
{
#ifdef DYNAMIC_LINKING
     int                         len;
     DIR                        *dir;
     char                       *interface_dir;
     struct dirent              *entry = NULL;
     struct dirent               tmp;
#endif

     DirectLink *link;

     pthread_mutex_lock( &implementations_mutex );

     /*
      * Check existing implementations first.
      */
     direct_list_foreach( link, implementations ) {
          DirectInterfaceImplementation *impl = (DirectInterfaceImplementation*) link;

          if (type && strcmp( type, impl->type ))
               continue;

          if (implementation && strcmp( implementation, impl->implementation ))
               continue;

          if (probe && !probe( impl->funcs, probe_ctx ))
               continue;
          else {
               if (!impl->references) {
                    D_INFO( "Direct/Interface: Using '%s' implementation of '%s'.\n",
                            impl->implementation, impl->type );
               }

               *funcs = impl->funcs;
               impl->references++;

               pthread_mutex_unlock( &implementations_mutex );

               return DFB_OK;
          }
     }

     Surface( EGL                  &egl,
              IDirectFB             dfb,
              int                   width,
              int                   height,
              IDirectFBEventBuffer  events )
          :
          egl( egl )
     {
          DFBSurfaceDescription desc;

          /* Fill description for a shared offscreen surface. */
          desc.flags  = (DFBSurfaceDescriptionFlags)(DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT);
          desc.caps   = (DFBSurfaceCapabilities)(DSCAPS_SHARED | DSCAPS_TRIPLE);
          desc.width  = width;
          desc.height = height;

          /* Create a primary surface. */
          surface = dfb.CreateSurface( desc );

          surface.MakeClient();

          /* Create event buffer */
          surface.AttachEventBuffer( events );

          surface_id = surface.GetID();

          surface.AllowAccess( "*" );

          surface.Clear( 0xff, 0xff, 0xff, 0xff );

          D_INFO( "DFBTest/EGLCompositor: Created new surface with ID %u\n", surface_id );

          image = egl.CreateImage( EGL_NO_CONTEXT, EGL_IMAGE_IDIRECTFBSURFACE_DIRECTFB, (EGLClientBuffer) surface.iface, NULL );

          glGenTextures( 1, &tex );

          glBindTexture( GL_TEXTURE_2D, tex );

          egl.EGLImageTargetTexture2D( GL_TEXTURE_2D, image );

          glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
          glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );


          glDisable( GL_CULL_FACE );
          glDisable( GL_DEPTH_TEST );
     }

DirectResult
fusion_ref_down (FusionRef *ref, bool global)
{
     D_ASSERT( ref != NULL );

     D_DEBUG_AT( Fusion_Ref, "fusion_ref_down( %p [%d]%s )\n", ref, ref->multi.id, global ? " GLOBAL" : "" );

     if (ref->multi.id == fusion_config->trace_ref) {
          D_INFO( "Fusion/Ref: 0x%08x down (%s)\n", ref->multi.id, global ? "global" : "local" );
          direct_trace_print_stack( NULL );
     }

     fusion_world_flush_calls( _fusion_world( ref->multi.shared ), 1 );

     while (ioctl (_fusion_fd( ref->multi.shared ), global ?
                   FUSION_REF_DOWN_GLOBAL : FUSION_REF_DOWN, &ref->multi.id))
     {
          switch (errno) {
               case EINTR:
                    continue;
               case EINVAL:
                    D_ERROR ("Fusion/Reference: invalid reference\n");
                    return DR_DESTROYED;
               default:
                    break;
          }

          if (global)
               D_PERROR ("FUSION_REF_DOWN_GLOBAL");
          else
               D_PERROR ("FUSION_REF_DOWN");

          return DR_FAILURE;
     }

// FIMXE: the following had to be commented out as the ref down may cause a ref watcher to free the memory of 'ref' (via ioctl)
#if 0
     if (ref->multi.shared)
          D_DEBUG_AT( Fusion_Ref, "  -> %d references now\n",
                      ioctl( _fusion_fd( ref->multi.shared ), FUSION_REF_STAT, &ref->multi.id ) );
     else
          D_DEBUG_AT( Fusion_Ref, "  -> destroyed\n" );
#endif

     return DR_OK;
}

static int driver_get_available( void )
{
  int fd;
 
  /* we will only use the ELO device if it has been configured */
  if(!dfb_config->elo_device) {
    return 0;
  }
  fd = eloOpenDevice (dfb_config->elo_device);
  if (fd < 0) {
    D_INFO("Elo:driver_get_available NON OK\n");
    return 0;
  }
  close(fd);

  return 1;
}

static void
Close( VoodooLink *link )
{
     Link *l = link->priv;

     D_INFO( "Voodoo/Link: Closing connection.\n" );

     close( l->fd[0] );

     if (l->fd[1] != l->fd[0])
          close( l->fd[1] );

     close( l->wakeup_fds[0] );
     close( l->wakeup_fds[1] );

     D_FREE( link->priv );
     link->priv = NULL;
}