コード例 #1
0
ファイル: layer_region.c プロジェクト: maxupunk/DIR685
static DFBResult
unrealize_region( CoreLayerRegion *region )
{
     DFBResult                ret;
     int                      index;
     CoreLayer               *layer;
     CoreLayerShared         *shared;
     const DisplayLayerFuncs *funcs;

     D_ASSERT( region != NULL );
     D_ASSERT( region->context != NULL );
     D_ASSERT( D_FLAGS_IS_SET( region->state, CLRSF_REALIZED ) );

     layer = dfb_layer_at( region->context->layer_id );

     D_ASSERT( layer != NULL );
     D_ASSERT( layer->shared != NULL );
     D_ASSERT( layer->funcs != NULL );

     shared = layer->shared;
     funcs  = layer->funcs;

     D_ASSERT( fusion_vector_contains( &shared->added_regions, region ) );

     index = fusion_vector_index_of( &shared->added_regions, region );

     D_DEBUG_AT( Core_Layers, "Removing region (%d, %d - %dx%d) from '%s'.\n",
                 DFB_RECTANGLE_VALS( &region->config.dest ), shared->description.name );

     /* Remove the region from hardware and driver. */
     if (funcs->RemoveRegion) {
          ret = funcs->RemoveRegion( layer, layer->driver_data,
                                     layer->layer_data, region->region_data );
          if (ret) {
               D_DERROR( ret, "Core/Layers: Could not remove region!\n" );
               return ret;
          }
     }

     /* Remove the region from the 'added' list. */
     fusion_vector_remove( &shared->added_regions, index );

     /* Deallocate the driver's region data. */
     if (region->region_data) {
          SHFREE( shared->shmpool, region->region_data );
          region->region_data = NULL;
     }

     /* Update the region's state. */
     D_FLAGS_CLEAR( region->state, CLRSF_REALIZED );
     D_FLAGS_SET( region->state, CLRSF_FROZEN );

     if (region->surface && region->surface_lock.buffer) {
          dfb_surface_unlock_buffer( region->surface, &region->surface_lock );
          dfb_surface_destroy_buffers( region->surface );
     }

     return DFB_OK;
}
コード例 #2
0
static DFBResult
realize_region( CoreLayerRegion *region )
{
     DFBResult          ret;
     CoreLayer         *layer;
     CoreLayerShared   *shared;
     DisplayLayerFuncs *funcs;

     D_ASSERT( region != NULL );
     D_ASSERT( region->context != NULL );
     D_ASSERT( D_FLAGS_IS_SET( region->state, CLRSF_CONFIGURED ) );
     D_ASSERT( ! D_FLAGS_IS_SET( region->state, CLRSF_REALIZED ) );

     layer = dfb_layer_at( region->context->layer_id );

     D_ASSERT( layer != NULL );
     D_ASSERT( layer->shared != NULL );
     D_ASSERT( layer->funcs != NULL );

     shared = layer->shared;
     funcs  = layer->funcs;

     D_ASSERT( ! fusion_vector_contains( &shared->added_regions, region ) );

     /* Allocate the driver's region data. */
     if (funcs->RegionDataSize) {
          int size = funcs->RegionDataSize();

          if (size > 0) {
               region->region_data = SHCALLOC( 1, size );
               if (!region->region_data)
                    return D_OOSHM();
          }
     }

     D_DEBUG_AT( Core_Layers, "Adding region (%d, %d - %dx%d) to '%s'.\n",
                 DFB_RECTANGLE_VALS( &region->config.dest ), shared->description.name );

     /* Add the region to the driver. */
     if (funcs->AddRegion) {
          ret = funcs->AddRegion( layer,
                                  layer->driver_data, layer->layer_data,
                                  region->region_data, &region->config );
          if (ret) {
               D_DERROR( ret, "Core/Layers: Could not add region!\n" );

               if (region->region_data) {
                    SHFREE( region->region_data );
                    region->region_data = NULL;
               }

               return ret;
          }
     }

     /* Add the region to the 'added' list. */
     fusion_vector_add( &shared->added_regions, region );

     /* Update the region's state. */
     D_FLAGS_SET( region->state, CLRSF_REALIZED );

     /* Initially setup hardware. */
     ret = set_region( region, &region->config, CLRCF_ALL, region->surface );
     if (ret) {
          unrealize_region( region );
          return ret;
     }

     return DFB_OK;
}