asn1_createBitmap.c

Go to the documentation of this file.

/*******************************************************************************
 * Copyright © 2014 The DTVKit Open Software Foundation Ltd (www.dtvkit.org)
 * Copyright © 2004 Ocean Blue Software Ltd
 * Copyright © 2000 Koninklijke Philips Electronics N.V
 *
 * This file is part of a DTVKit Software Component
 * You are permitted to copy, modify or distribute this file subject to the terms
 * of the DTVKit 1.0 Licence which can be found in licence.txt or at www.dtvkit.org
 * 
 * THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
 * EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * If you or your organisation is not a member of DTVKit then you have access
 * to this source code outside of the terms of the licence agreement
 * and you are expected to delete this and any associated files immediately.
 * Further information on DTVKit, membership and terms can be found at www.dtvkit.org
 *******************************************************************************/
/*---includes for this file--------------------------------------------------*/
#include <stdio.h>
#include "vpa1_sys.h"
#include "vpa1_tgs.h"
#include "fpa1_syn.h"
#include "asn1_sys.h"


#include "glue_debug.h"
#include "mh5base.h"
#include "mh5bitmap.h"
#include "asn1_createExtras.h"
#include "asn1_createVisible.h"
#include "asn1_createBitmap.h"

/*---constant definitions for this file--------------------------------------*/


/*---local typedef structs for this file-------------------------------------*/

/*---local (static) variable declarations for this file----------------------*/
TRACER(int asn_bitmap_count = 0; )

/*---local function definitions----------------------------------------------*/

/*---global function definitions---------------------------------------------*/

MHEG5Ingredient * asn1_createBitmap( fpa1_syntaxList * listPtr )
{
   MHEG5Bitmap *bitmap;
   fpa1_syntaxList *currItem;

   DPL5((">> asn1_decodeBitmap(%X)\n", listPtr));
   assert( listPtr );
   TRACER(asn_bitmap_count++);

   bitmap = (MHEG5Bitmap *)MHEG5getMem( sizeof(MHEG5Bitmap));
   if (bitmap != NULL)
   {
      memset(bitmap, 0, sizeof(MHEG5Bitmap));
      bitmap->visible.ingredient.root.clazz = MHEG5BITMAP;

      /* Defaults */
      /*
         bitmap->tiling = MHEG5FALSE;
         bitmap->originalTransparency = 0;
       */

      /* searches current set of tags for local tags */
      currItem = listPtr->children;
      while (currItem != NULL)
      {
         /* most objects will have more than one local tag */
         switch (currItem->tag)
         {
            case TILING:
               if (currItem->data.boolData != 0)
               {
                  bitmap->tiling = MHEG5TRUE;
               }
               break;
            case OTRANS:
               bitmap->originalTransparency = currItem->data.intData;
               break;

            default:
               break;
         }
         currItem = currItem->next;
      }
      /* decode inherited tags */
      if (asn1_decodeVisible(listPtr, &bitmap->visible) != ASN_NO_ERROR)
      {
         #if (DPLEVEL >= 2)
         DPL2(("WARNING:[ASN.1] asn1_decodeBitmap() Fails\n"));
         #endif /* DPLEVEL >= 2 */
         MHEG5freeMem( bitmap );
         bitmap = NULL;
      }
   }
   else
   {
      TRACE(TERROR, ("Alloc asn1_decodeBitmap() Fails\n"))
   }

   DPL5(("<< asn1_decodeBitmap() %X\n", bitmap));

   return (MHEG5Ingredient *)bitmap;
}