C++ IDirectFBDisplayLayer::Release方法代码示例

int main(int argc, char** argv) {
        
    IDirectFB *dfb = NULL;
    IDirectFBDisplayLayer *layer =  NULL;
    IDirectFBSurface *surface = NULL;
    IDirectFBVideoProvider *vp = NULL;

    CHECK(DirectFBInit (&argc, &argv));
    if (argc != 2) {
        return 1;
    }

    CHECK(DirectFBCreate(&dfb));
    /* Signals */
    signal(SIGINT, signal_handler);
    signal(SIGTERM, signal_handler);
    signal(SIGUSR1, signal_handler);
    signal(SIGUSR2, signal_handler);

    CHECK(dfb->GetDisplayLayer(dfb, 0, &layer));

    CHECK(dfb->CreateVideoProvider(dfb, argv[1], &vp));
   

    CHECK(layer->GetSurface(layer, &surface));
    CHECK(vp->PlayTo(vp, surface, NULL, flip, surface));
    while(to_exit == 0) {
        sleep(1);
    }

    CHECK(vp->Stop(vp));
    CHECK(vp->Release(vp));
    CHECK(surface->Release(surface));
    CHECK(layer->Release(layer));
    CHECK(dfb->Release(dfb));
    

    return 0;


}

int main( int argc, char *argv[] )
{
     IDirectFB              *dfb;
     IDirectFBDisplayLayer  *layer;

     IDirectFBSurface       *bgsurface;
     IDirectFBImageProvider *provider;

     IDirectFBWindow        *window1;
     IDirectFBWindow        *window2;
     IDirectFBSurface       *window_surface1;
     IDirectFBSurface       *window_surface2;

     IDirectFBEventBuffer   *buffer;

     DFBDisplayLayerConfig  layer_config;

#if ((DIRECTFB_MAJOR_VERSION == 0) && (DIRECTFB_MINOR_VERSION == 9) && (DIRECTFB_MICRO_VERSION < 23))
     DFBCardCapabilities    caps;
#else
     DFBGraphicsDeviceDescription caps;
#endif
     IDirectFBWindow*       upper;
     DFBWindowID            id1;

     IDirectFBFont          *font;
     int fontheight;
     int err;
     int quit = 0;


     DFBCHECK(DirectFBInit( &argc, &argv ));
     DFBCHECK(DirectFBCreate( &dfb ));

#if ((DIRECTFB_MAJOR_VERSION == 0) && (DIRECTFB_MINOR_VERSION == 9) && (DIRECTFB_MICRO_VERSION < 23))
     dfb->GetCardCapabilities( dfb, &caps );
#else
     dfb->GetDeviceDescription( dfb, &caps );
#endif

     dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer );

     if (!((caps.blitting_flags & DSBLIT_BLEND_ALPHACHANNEL) &&
           (caps.blitting_flags & DSBLIT_BLEND_COLORALPHA  )))
     {
          layer_config.flags = DLCONF_BUFFERMODE;
          layer_config.buffermode = DLBM_BACKSYSTEM;

          layer->SetConfiguration( layer, &layer_config );
     }

     layer->GetConfiguration( layer, &layer_config );
     layer->EnableCursor ( layer, 1 );

     {
          DFBFontDescription desc;

          desc.flags = DFDESC_HEIGHT;
          desc.height = layer_config.width/50;

          DFBCHECK(dfb->CreateFont( dfb, PACKAGE_DATA_DIR"/grunge.ttf", &desc, &font ));
          font->GetHeight( font, &fontheight );
     }

     {
          DFBSurfaceDescription desc;

          DFBCHECK(dfb->CreateImageProvider( dfb,
                                             PACKAGE_DATA_DIR"/bg.png",
                                             &provider ));

          desc.flags = DSDESC_WIDTH | DSDESC_HEIGHT;
          desc.width = layer_config.width;
          desc.height = layer_config.height;

          DFBCHECK(dfb->CreateSurface( dfb, &desc, &bgsurface ) );


          provider->RenderTo( provider, bgsurface, NULL );
          provider->Release( provider );

	  DFBCHECK(bgsurface->SetFont( bgsurface, font ));

          bgsurface->SetColor( bgsurface, 0xCF, 0xCF, 0xFF, 0xFF );
          bgsurface->DrawString( bgsurface,
                                 "Move the mouse over a window to activate it.",
                                 -1, 10, 0, DSTF_LEFT | DSTF_TOP );

          bgsurface->SetColor( bgsurface, 0xFF, 0xCF, 0xFF, 0xFF );
          bgsurface->DrawString( bgsurface,
                    "You can drag them around, too, if you want.",
                                 -1, 10 , 40, DSTF_LEFT | DSTF_TOP );

          bgsurface->SetColor( bgsurface, 0xCF, 0xCF, 0xFF, 0xFF );
	  bgsurface->DrawString( bgsurface,
                    "The one with funky stuff happening and things flying around is an evas.",
                                 -1, 10, 80, DSTF_LEFT | DSTF_TOP );



//.........这里部分代码省略.........

int
main( int argc, char *argv[] )
{
    DFBResult              ret;
    int                    i;
    IDirectFB             *dfb;
    IDirectFBDisplayLayer *layer;

    /* Initialize DirectFB including command line parsing. */
    ret = DirectFBInit( &argc, &argv );
    if (ret) {
        DirectFBError( "DirectFBInit() failed", ret );
        return -1;
    }

    /* Parse the command line. */
    if (!parse_command_line( argc, argv ))
        return -2;

    SHOW_INFO( "Starting up..." );

    /* Create the super interface. */
    ret = DirectFBCreate( &dfb );
    if (ret) {
        DirectFBError( "DirectFBCreate() failed", ret );
        return -3;
    }

    /* Get the primary layer interface. */
    ret = dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer );
    if (ret) {
        D_DERROR( ret, "IDirectFB::GetDisplayLayer() failed!\n" );
        dfb->Release( dfb );
        return -4;
    }


    if (!m_toplevel_id)
        RunTest( Test_CreateWindow, "CreateWindow", layer, NULL );

    RunTest( Test_CreateSubWindow, "CreateSubWindow", layer, NULL );


    for (i=0; i<D_ARRAY_SIZE(m_tests); i++) {
        if (m_tests[i].run_top)
            RunTest( m_tests[i].func, m_tests[i].name, layer, NULL );

        if (m_tests[i].run_sub)
            RunTest( m_tests[i].func, m_tests[i].name, layer, (void*) (unsigned long) m_subwindow_id );
    }

    while (m_wait_at_end)
        direct_thread_sleep( 1000000 );

    SHOW_INFO( "Shutting down..." );

    /* Release the sub window. */
    if (m_subwindow)
        m_subwindow->Release( m_subwindow );

    /* Release the top level. */
    if (m_toplevel)
        m_toplevel->Release( m_toplevel );

    /* Release the layer. */
    layer->Release( layer );

    /* Release the super interface. */
    dfb->Release( dfb );

    return EXIT_SUCCESS;
}

static DFBEnumerationResult
display_layer_callback( DFBDisplayLayerID           id,
                        DFBDisplayLayerDescription  desc,
                        void                       *arg )
{
     int i;

     /* Name */
     printf( "     Layer (%02x) %-30s", id, desc.name );

     switch (id) {
          case DLID_PRIMARY:
               printf( "  (primary layer)" );
               break;
          default:
               break;
     }

     printf( "\n" );


     /* Type */
     printf( "        Type:    " );

     for (i=0; layer_types[i].type; i++) {
          if (desc.type & layer_types[i].type)
               printf( "%s ", layer_types[i].name );
     }

     printf( "\n" );


     /* Caps */
     printf( "        Caps:    " );

     for (i=0; layer_caps[i].capability; i++) {
          if (desc.caps & layer_caps[i].capability)
               printf( "%s ", layer_caps[i].name );
     }

     printf( "\n" );


     /* Sources */
     if (desc.caps & DLCAPS_SOURCES) {
          DFBResult                         ret;
          IDirectFBDisplayLayer            *layer;
          DFBDisplayLayerSourceDescription  descs[desc.sources];

          ret = dfb->GetDisplayLayer( dfb, id, &layer );
          if (ret) {
               DirectFBError( "DirectFB::GetDisplayLayer() failed", ret );
          }
          else {
               ret = layer->GetSourceDescriptions( layer, descs );
               if (ret) {
                    DirectFBError( "DirectFBDisplayLayer::GetSourceDescriptions() failed", ret );
               }
               else {
                    printf( "        Sources: " );

                    for (i=0; i<desc.sources; i++) {
                         if (i > 0)
                              printf( ", %s", descs[i].name );
                         else
                              printf( "%s", descs[i].name );
                    }

                    printf( "\n" );
               }

               layer->Release( layer );
          }
     }


     printf( "\n" );

     return DFB_OK;
}

static void
TestResize( IDirectFB *dfb )
{
     DFBResult              ret;
     DirectThread          *thread;
     DFBWindowDescription   desc;
     IDirectFBDisplayLayer *layer;
     IDirectFBWindow       *window;
     IDirectFBSurface      *surface;
     DFBInputEvent          evt;
     IDirectFBEventBuffer  *keybuffer;

     quit = 0;

     /* Create an input buffer for key events */
     ret = dfb->CreateInputEventBuffer( dfb, DICAPS_KEYS,
                                        DFB_FALSE, &keybuffer);
     if (ret) {
          D_DERROR( ret, "DFBTest/Resize: CreateInputBuffer() failed!\n" );
          return;
     }

     ret = dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer );
     if (ret) {
          D_DERROR( ret, "DFBTest/Resize: Failed to get display layer!\n" );
          keybuffer->Release( keybuffer );
          return;
     }

     desc.flags       = DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_PIXELFORMAT;
     desc.width       = 500;
     desc.height      = 500;
     desc.pixelformat = DSPF_ARGB;

     ret = layer->CreateWindow( layer, &desc, &window );
     if (ret) {
          D_DERROR( ret, "DFBTest/Resize: CreateWindow() failed!\n" );
          keybuffer->Release( keybuffer );
          layer->Release( layer );
          return;
     }

     ret = window->GetSurface( window, &surface );
     if (ret) {
          D_DERROR( ret, "DFBTest/Resize: GetSurface() failed!\n" );
          keybuffer->Release( keybuffer );
          window->Release( window );
          layer->Release( layer );
          return;
     }

     thread = direct_thread_create( DTT_DEFAULT, TestThread, surface, "Test" );

     while (!quit) {

          ret = window->Resize( window, 500, 400 );
          if (ret)
               D_DERROR( ret, "DFBTest/Resize: Resize() failed!\n" );

          ret = window->Resize( window, 500, 500 );
          if (ret)
               D_DERROR( ret, "DFBTest/Resize: Resize() failed!\n" );

          /* Process keybuffer */
          while (keybuffer->GetEvent( keybuffer, DFB_EVENT(&evt)) == DFB_OK)
          {
              if (evt.type == DIET_KEYPRESS) {
                  switch (DFB_LOWER_CASE(evt.key_symbol)) {
                      case DIKS_ESCAPE:
                      case DIKS_SMALL_Q:
                      case DIKS_BACK:
                      case DIKS_STOP:
                      case DIKS_EXIT:
                          /* Quit main loop & test thread */
                          quit = 1;
                          direct_thread_join(thread);
                          break;
                      default:
                          break;
                  }
              }
          }
     }

     keybuffer->Release( keybuffer );
     surface->Release( surface );
     window->Release( window );
     layer->Release( layer );
}

//.........这里部分代码省略.........
		
		rect.x = case_result_align;
		rect.y = case_x[i].position;
		rect.w = case_width - case_result_align;
		rect.h = font_height;
		if((rect.y + rect.h) > screen_height)
		{
			overflow = true;
			case_x[i].enable = 0;
			printf("case %d overflow, disable all case after it\n", i);
			continue;
		}
		if(double_line)
		{
			// case_x[i].position = -2;
			rect.h *= 2;
			if(case_x[i].type)
				manu_skip--;
			else
				auto_skip--;
		}
		DFBCHECK(surface_case->GetSubSurface(surface_case, &rect, &case_x[i].surface));
		DFBCHECK(case_x[i].surface->SetFont(case_x[i].surface, font));
	}
	
	DFBCHECK(window_case->SetOpacity(window_case, 0xff ));

#ifdef __GS900A__
	system("echo 1 > /sys/devices/e0250000.hdmi/enable");
#endif
	//start case thread
	for(i = 0; i < case_num; i++)
	{
		char thread_name[10];
		sprintf(thread_name,"thread_%d", i);
		if(case_x[i].enable)
		{
			thread_case[i] = direct_thread_create(DTT_DEFAULT, case_thread, &case_x[i], thread_name);
		}
	}
	
	case_x[tp].surface = surface_tp;
	
	//start thread
#ifdef __GS702C__
	thread_music = direct_thread_create(DTT_DEFAULT, music_thread, NULL, "music");
	thread_mic = direct_thread_create(DTT_DEFAULT, mic_thread, surface_mic, "mic");
#else
	thread_music  = direct_thread_create(DTT_DEFAULT, tinyalsa_music_thread, NULL, "tinyalsa_music");
	thread_mic = direct_thread_create(DTT_DEFAULT, tinyalsa_mic_thread, surface_mic, "tinyalsa_mic");
#endif

	thread_tp = direct_thread_create(DTT_DEFAULT, tp_thread, &case_x[tp], "tp");
	thread_flashlight = direct_thread_create(DTT_DEFAULT, flashlight_thread, &case_x[flashlight], "flashlight");
	thread_camera = direct_thread_create(DTT_DEFAULT, camera_thread, &camera_frame, "camera" );
	//thread_mic = direct_thread_create(DTT_DEFAULT, mic_thread, surface_mic, "mic");
	thread_button = direct_thread_create(DTT_DEFAULT, handle_record_button, surface_button, "button");
	sleep(1);
	
	DFBCHECK(surface_case->Flip(surface_case, NULL, 0));
	
	if(iio_read(info, case_x[gsensor].enable, case_x[gyro].enable, case_x[comp].enable) == -1)
		printf("get iio device error\n");
		
	//block in iio_read
	//useless statement
	for(i = 0; i < case_num; i++)
	{
		if(case_x[i].enable)
		{
			direct_thread_join(thread_case[i]);
			case_x[i].surface->Release(case_x[i].surface);
			direct_thread_destroy(thread_case[i]);
			printf("thread %d destroyed\n", i);
		}
	}

	direct_thread_join(thread_camera);
	direct_thread_destroy(thread_camera);
	direct_thread_join(thread_music);
	direct_thread_destroy(thread_music);
	direct_thread_join(thread_mic);
	direct_thread_destroy(thread_mic);

	surface_button->Release(surface_button);
	surface_camera->Release(surface_camera);
	camera_source->Release(camera_source);
	windowsurface->Release(windowsurface);
	window_camera->Release(window_camera);
	
	surface_case->Release(surface_case);
	window_case->Release(window_case);
	layer->Release(layer);
	font->Release(font);
	dfb->Release(dfb);
	
#ifndef __GS900A__
	ion_close_alc();
#endif
}

static DFBResult CreateYUVSurface(_THIS, struct private_yuvhwdata *hwdata,
                                  int width, int height, Uint32 format)
{
  DFBResult              ret;
  IDirectFB             *dfb = HIDDEN->dfb;
  IDirectFBDisplayLayer *layer;
  DFBDisplayLayerConfig  conf;

  ret = dfb->EnumDisplayLayers (dfb, enum_layers_callback, hwdata);
  if (ret)
    {
      SetDirectFBerror("IDirectFB::EnumDisplayLayers", ret);
      return ret;
    }

  if (!hwdata->layer_id)
    return DFB_UNSUPPORTED;

  ret = dfb->GetDisplayLayer (dfb, hwdata->layer_id, &layer);
  if (ret)
    {
      SetDirectFBerror("IDirectFB::GetDisplayLayer", ret);
      return ret;
    }

  conf.flags = DLCONF_WIDTH | DLCONF_HEIGHT | DLCONF_PIXELFORMAT;
  conf.width = width;
  conf.height = height;

  switch (format)
    {
    case SDL_YV12_OVERLAY:
      conf.pixelformat = DSPF_YV12;
      break;
    case SDL_IYUV_OVERLAY:
      conf.pixelformat = DSPF_I420;
      break;
    case SDL_YUY2_OVERLAY:
      conf.pixelformat = DSPF_YUY2;
      break;
    case SDL_UYVY_OVERLAY:
      conf.pixelformat = DSPF_UYVY;
      break;
    default:
      fprintf (stderr, "SDL_DirectFB: Unsupported YUV format (0x%08x)!\n", format);
      break;
    }

  /* Need to set coop level or newer DirectFB versions will fail here. */
  ret = layer->SetCooperativeLevel (layer, DLSCL_ADMINISTRATIVE);
  if (ret)
    {
      SetDirectFBerror("IDirectFBDisplayLayer::SetCooperativeLevel() failed", ret);
      layer->Release (layer);
      return ret;
    }

  ret = layer->SetConfiguration (layer, &conf);
  if (ret)
    {
      SetDirectFBerror("IDirectFBDisplayLayer::SetConfiguration", ret);
      layer->Release (layer);
      return ret;
    }

  ret = layer->GetSurface (layer, &hwdata->surface);
  if (ret)
    {
      SetDirectFBerror("IDirectFBDisplayLayer::GetSurface", ret);
      layer->Release (layer);
      return ret;
    }

  hwdata->layer = layer;

  return DFB_OK;
}

int
main( int argc, char *argv[] )
{
     DFBResult              ret;
     int                    i;
     int                    x, y;
     int                    dx, dy;
     int                    sw3, sh3;
     int                    opacity       = 255;
     int                    opacity_delta = -1;
     IDirectFB             *dfb;
     IDirectFBDisplayLayer *layer;
     IDirectFBSurface      *surface;
     DFBDisplayLayerConfig  config;
     DFBDimension           size;
     DFBInputEvent          evt;

     /* Initialize DirectFB. */
     ret = DirectFBInit( &argc, &argv );
     if (ret) {
          D_DERROR( ret, "DFBTest/Layer: DirectFBInit() failed!\n" );
          return ret;
     }


     /* Create super interface. */
     ret = DirectFBCreate( &dfb );
     if (ret) {
          D_DERROR( ret, "DFBTest/Layer: DirectFBCreate() failed!\n" );
          return ret;
     }

     dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer );

     /* Create an input buffer for key events */
     dfb->CreateInputEventBuffer( dfb, DICAPS_KEYS,
                                  DFB_TRUE, &keybuffer);

     layer->SetCooperativeLevel( layer, DFSCL_EXCLUSIVE );

     layer->GetConfiguration( layer, &config );


     config.options    = DLOP_OPACITY | DLOP_SRC_COLORKEY;
     config.buffermode = DLBM_FRONTONLY;

     layer->SetConfiguration( layer, &config );
     layer->SetSrcColorKey( layer, 0x00, 0xff, 0x00 );



     ret = layer->GetSurface( layer, &surface );
     if (ret) {
          D_DERROR( ret, "DFBTest/Layer: GetSurface() failed!\n" );
          dfb->Release( dfb );
          return ret;
     }

     surface->GetSize( surface, &size.w, &size.h );

     sw3 = ((size.w / 3) + 1) & ~1;
     sh3 = ((size.h / 3) + 1) & ~1;


     surface->Clear( surface, 0, 0, 0, 0xff );

     for (i=0; i<10; i++) {
          surface->SetColor( surface, 0xff - i*16, 0xff - i*16, 0xff - i*16, 0xff );
          surface->DrawRectangle( surface, i, i, size.w - i*2, size.h - i*2 );
     }

     surface->FillRectangle( surface, 10, size.h/2, size.w - 20, 1 );
     surface->FillRectangle( surface, size.w/2, 10, 1, size.h - 20 );

     surface->SetColor( surface, 0xff, 0x00, 0x00, 0xff );
     surface->FillRectangle( surface, size.w/3, size.h/3, size.w/3, size.h/3 );

     surface->SetColor( surface, 0x00, 0xff, 0x00, 0xff );
     surface->FillRectangle( surface, size.w/3 + size.w/9, size.h/3 + size.h/9, size.w/9, size.h/9 );

     surface->Flip( surface, NULL, DSFLIP_NONE );

#ifdef BUILD_AUTOMATION
     sleep( 2 );
#else
     sleep( 12 );
#endif
     layer->SetSourceRectangle( layer, 0, 0, size.w - sw3, size.h - sh3 );

     layer->SetScreenPosition( layer, 100, 100 );
     layer->SetScreenRectangle( layer, 100, 100, size.w - sw3, size.h - sh3 );

     sleep( 2 );
#ifdef BUILD_AUTOMATION
     sleep( 20 );
     quit = 1;
#endif

     for (x=0, y=0, dx=1, dy=1; !quit ; x+=dx, y+=dy) {
          layer->SetOpacity( layer, opacity );
//.........这里部分代码省略.........