memalloc.c

压缩JM12.3d的完整的全部C语言的代码文档,用于嵌入式系统的压缩编解码

/*!
 ************************************************************************
 * \brief
 *    free 3D short memory array
 *    which was allocated with get_mem3Dshort()
 ************************************************************************
 */
void free_mem3Dshort(short ***array3D, int frames)
{
  int i;

  if (array3D)
  {
    for (i=0;i<frames;i++)
    {
      free_mem2Dshort(array3D[i]);
    }
   free (array3D);
  } else
  {
    error ("free_mem3Dshort: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    free 4D short memory array
 *    which was allocated with get_mem4Dshort()
 ************************************************************************
 */
void free_mem4Dshort(short ****array4D, int idx, int frames )
{
  int  j;

  if (array4D)
  {
    for(j=0;j<idx;j++)
      free_mem3Dshort( array4D[j], frames) ;
    free (array4D);
  } else
  {
    error ("free_mem4Dshort: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    free 5D short memory array
 *    which was allocated with get_mem5Dshort()
 ************************************************************************
 */
void free_mem5Dshort(short *****array5D, int refs, int blocktype, int height)
{
  int  j;

  if (array5D)
  {
    for(j=0;j<refs;j++)
      free_mem4Dshort( array5D[j], blocktype, height) ;
    free (array5D);
  }
  else
  {
    error ("free_mem5Dshort: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    free 6D short memory array
 *    which was allocated with get_mem6Dshort()
 ************************************************************************
 */
void free_mem6Dshort(short ******array6D, int list, int refs, int blocktype, int height)
{
  int  j;

  if (array6D)
  {
    for(j=0;j<list;j++)
      free_mem5Dshort( array6D[j], refs, blocktype, height) ;
    free (array6D);
  }
  else
  {
    error ("free_mem6Dshort: trying to free unused memory",100);
  }
}


/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> double array2D[rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem2Ddouble(double ***array2D, int rows, int columns)
{
  int i;

  if((*array2D      = (double**)calloc(rows,        sizeof(double*))) == NULL)
    no_mem_exit("get_mem2Ddouble: array2D");
  if(((*array2D)[0] = (double* )calloc(rows*columns,sizeof(double ))) == NULL)
    no_mem_exit("get_mem2Ddouble: array2D");

  for(i=1 ; i<rows ; i++)
    (*array2D)[i] =  (*array2D)[i-1] + columns  ;

  return rows*columns*sizeof(double);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> double array2D[rows][columns]
 *    Note that array is shifted towards offset allowing negative values
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem2Ddb_offset(double ***array2D, int rows, int columns, int offset)
{
  int i;

  if((*array2D      = (double**)calloc(rows,        sizeof(double*))) == NULL)
    no_mem_exit("get_mem2Ddb_offset: array2D");
  if(((*array2D)[0] = (double* )calloc(rows*columns,sizeof(double ))) == NULL)
    no_mem_exit("get_mem2Ddb_offset: array2D");

  (*array2D)[0] += offset;

  for(i=1 ; i<rows ; i++)
    (*array2D)[i] =  (*array2D)[i-1] + columns  ;

  return rows*columns*sizeof(double);
}

/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory double array -> double array3D[pels][rows][columns]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem3Ddb_offset(double ****array3D, int rows, int columns, int pels, int offset)
{
  int  i,j;

  if(((*array3D) = (double***)calloc(rows,sizeof(double**))) == NULL)
    no_mem_exit("get_mem3Ddb_offset: array3D");

  if(((*array3D)[0] = (double** )calloc(rows*columns,sizeof(double*))) == NULL)
    no_mem_exit("get_mem3Ddb_offset: array3D");

  (*array3D) [0] += offset;

  for(i=1 ; i<rows ; i++)
    (*array3D)[i] =  (*array3D)[i-1] + columns  ;

  for (i = 0; i < rows; i++)
    for (j = -offset; j < columns - offset; j++)
      if(((*array3D)[i][j] = (double* )calloc(pels,sizeof(double))) == NULL)
        no_mem_exit("get_mem3Ddb_offset: array3D");

  return rows*columns*pels*sizeof(double);
}
/*!
 ************************************************************************
 * \brief
 *    Allocate 3D memory int array -> int array3D[rows][columns][pels]
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */


int get_mem3Dint_offset(int ****array3D, int rows, int columns, int pels, int offset)
{
  int  i,j;

  if(((*array3D) = (int***)calloc(rows,sizeof(int**))) == NULL)
    no_mem_exit("get_mem3Dint_offset: array3D");

  if(((*array3D)[0] = (int** )calloc(rows*columns,sizeof(int*))) == NULL)
    no_mem_exit("get_mem3Dint_offset: array3D");

  (*array3D) [0] += offset;

  for(i=1 ; i<rows ; i++)
    (*array3D)[i] =  (*array3D)[i-1] + columns  ;

  for (i = 0; i < rows; i++)
    for (j = -offset; j < columns - offset; j++)
      if(((*array3D)[i][j] = (int* )calloc(pels,sizeof(int))) == NULL)
        no_mem_exit("get_mem3Dint_offset: array3D");

  return rows*columns*pels*sizeof(int);
}


/*!
 ************************************************************************
 * \brief
 *    free 2D double memory array
 *    which was allocated with get_mem2Ddouble()
 ************************************************************************
 */
void free_mem2Ddouble(double **array2D)
{
  if (array2D)
  {
    if (array2D[0])
      free (array2D[0]);
    else 
      error ("free_mem2Ddouble: trying to free unused memory",100);

    free (array2D);

  }
  else
  {
    error ("free_mem2Ddouble: trying to free unused memory",100);
  }
}


/*!
************************************************************************
* \brief
*    free 2D double memory array (with offset)
*    which was allocated with get_mem2Ddouble()
************************************************************************
*/
void free_mem2Ddb_offset(double **array2D, int offset)
{
  if (array2D)
  {
    array2D[0] -= offset;
    if (array2D[0])
      free (array2D[0]);
    else error ("free_mem2Ddb_offset: trying to free unused memory",100);

    free (array2D);

  } else
  {
    error ("free_mem2Ddb_offset: trying to free unused memory",100);
  }
}
/*!
 ************************************************************************
 * \brief
 *    free 3D memory array with offset
 ************************************************************************
 */
void free_mem3Ddb_offset(double ***array3D, int rows, int columns, int offset)
{
  int i, j;

  if (array3D)
  {
    for (i = 0; i < rows; i++)
    {
      for (j = -offset; j < columns - offset; j++)
      {
        if (array3D[i][j])
          free(array3D[i][j]);
        else
          error ("free_mem3Ddb_offset: trying to free unused memory",100);
      }
    }
    array3D[0] -= offset;
    if (array3D[0])
      free(array3D[0]);
    else
      error ("free_mem3Ddb_offset: trying to free unused memory",100);
    free (array3D);
  }
  else
  {
    error ("free_mem3Ddb_offset: trying to free unused memory",100);
  }
}

/*!
 ************************************************************************
 * \brief
 *    free 3D memory array with offset
 ************************************************************************
 */
void free_mem3Dint_offset(int ***array3D, int rows, int columns, int offset)
{
  int i, j;

  if (array3D)
  {
    for (i = 0; i < rows; i++)
    {
      for (j = -offset; j < columns - offset; j++)
      {
        if (array3D[i][j])
          free(array3D[i][j]);
        else
          error ("free_mem3Dint_offset: trying to free unused memory",100);
      }
    }
    array3D[0] -= offset;
    if (array3D[0])
      free(array3D[0]);
    else
      error ("free_mem3Dint_offset: trying to free unused memory",100);
    free (array3D);
  }
  else
  {
    error ("free_mem3Dint_offset: trying to free unused memory",100);
  }
}
/*!
 ************************************************************************
 * \brief
 *    Allocate 2D memory array -> int array2D[rows][columns]
 *    Note that array is shifted towards offset allowing negative values
 *
 * \par Output:
 *    memory size in bytes
 ************************************************************************
 */
int get_mem2Dint_offset(int ***array2D, int rows, int columns, int offset)
{
  int i;

  if((*array2D      = (int**)calloc(rows, sizeof(int*))) == NULL)
    no_mem_exit("get_mem2Dint: array2D");
  if(((*array2D)[0] = (int* )calloc(rows*columns,sizeof(int))) == NULL)
    no_mem_exit("get_mem2Dint: array2D");

  (*array2D)[0] += offset;

  for(i=1 ; i<rows ; i++)
    (*array2D)[i] =  (*array2D)[i-1] + columns  ;

  return rows*columns*sizeof(int);
}


/*!
************************************************************************
* \brief
*    free 2D double memory array (with offset)
*    which was allocated with get_mem2Ddouble()
************************************************************************
*/
void free_mem2Dint_offset(int **array2D, int offset)
{
  if (array2D)
  {
    (*array2D)[0] -= offset;
    if (array2D[0])
      free (array2D[0]);
    else 
      error ("free_mem2Dint_offset: trying to free unused memory",100);

    free (array2D);

  } 
  else
  {
    error ("free_mem2Dint_offset: trying to free unused memory",100);
  }
}