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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
 * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */


#ifndef H5REPACK_H__
#define H5REPACK_H__

#include "hdf5.h"
#include "h5trav.h"
#include "h5diff.h"
#include "h5tools.h"

#define H5FOPENERROR "unable to open file"

#define PFORMAT  "%-7s %-7s %-7s\n" /*chunk info, compression info, name*/
#define PFORMAT1 "%-7s %-7s %-7s"     /*chunk info, compression info, name*/

#define MAX_NC_NAME 256 /* max length of a name */
#define MAX_VAR_DIMS 32 /* max per variable dimensions */

/*-------------------------------------------------------------------------
 * data structures for command line options
 *-------------------------------------------------------------------------
 */

/* a list of names */
typedef struct {
 char obj[MAX_NC_NAME];
} obj_list_t;

/*
 the type of filter and additional parameter
 type can be one of the filters
 H5Z_FILTER_NONE        0,  uncompress if compressed
 H5Z_FILTER_DEFLATE     1 , deflation like gzip
 H5Z_FILTER_SHUFFLE     2 , shuffle the data
 H5Z_FILTER_FLETCHER32  3 , letcher32 checksum of EDC
 H5Z_FILTER_SZIP        4 , szip compression
 H5Z_FILTER_NBIT        5 , nbit compression
 H5Z_FILTER_SCALEOFFSET 6 , scaleoffset compression
*/

#define CDVALUES 2

typedef struct {
 H5Z_filter_t filtn;               /* filter identification number */
 int          cd_values[CDVALUES]; /* filter client data values */
} filter_info_t;

/* chunk lengths along each dimension and rank */
typedef struct {
 hsize_t chunk_lengths[MAX_VAR_DIMS];
 int     rank;
} chunk_info_t;

/* we currently define a maximum value for the filters array,
   that corresponds to the current library filters */
#define H5_REPACK_MAX_NFILTERS 6

/* information for one object, contains PATH, CHUNK info and FILTER info */
typedef struct {
 char          path[MAX_NC_NAME];               /* name of object */
 filter_info_t filter[H5_REPACK_MAX_NFILTERS];  /* filter array */
 int           nfilters;                        /* current number of filters */
 H5D_layout_t  layout;                          /* layout information */
 chunk_info_t  chunk;                           /* chunk information */
 hid_t         refobj_id;                       /* object ID, references */
} pack_info_t;

/* store a table of all objects */
typedef struct {
 int         size;
 int         nelems;
 pack_info_t *objs;
} pack_opttbl_t;


/*-------------------------------------------------------------------------
 * command line options
 *-------------------------------------------------------------------------
 */

/* all the above, ready to go to the hrepack call */
typedef struct {
 pack_opttbl_t   *op_tbl;     /*table with all -c and -f options */
 int             all_layout;  /*apply the layout to all objects */
 int             all_filter;  /*apply the filter to all objects */
 filter_info_t   filter_g;    /*global filter INFO for the ALL case */
 chunk_info_t    chunk_g;     /*global chunk INFO for the ALL case */
 H5D_layout_t    layout_g;    /*global layout information for the ALL case */
 int             verbose;     /*verbose mode */
 hsize_t         threshold;   /*minimum size to compress, in bytes */
 int             use_native;  /*use a native type in write */  
} pack_opt_t;



/*-------------------------------------------------------------------------
 * public functions
 *-------------------------------------------------------------------------
 */

#ifdef __cplusplus
extern "C" {
#endif

int h5repack           (const char* infile, const char* outfile, pack_opt_t *options);
int h5repack_addfilter (const char* str, pack_opt_t *options);
int h5repack_addlayout (const char* str, pack_opt_t *options);
int h5repack_init      (pack_opt_t *options, int verbose);
int h5repack_end       (pack_opt_t *options);
int h5repack_verify    (const char *fname,pack_opt_t *options);
int h5repack_cmpdcpl   (const char *fname1,
                        const char *fname2);


#ifdef __cplusplus
}
#endif



/*-------------------------------------------------------------------------
 * private functions
 *-------------------------------------------------------------------------
 */


int check_objects(const char* fname,
                  pack_opt_t *options);

int copy_objects(const char* fnamein,
                 const char* fnameout,
                 pack_opt_t *options);

void print_objlist(const char *filename,
                   int nobjects,
                   trav_info_t *travi );

int do_copy_objects(hid_t fidin,
                    hid_t fidout,
                    trav_table_t *travt,
                    pack_opt_t *options);

int copy_attr(hid_t loc_in,
              hid_t loc_out,
              pack_opt_t *options
              );

int do_copy_refobjs(hid_t fidin,
                    hid_t fidout,
                    trav_table_t *travt,
                    pack_opt_t *options); /* repack options */



void read_info(const char *filename,pack_opt_t *options);
void init_packobject(pack_info_t *obj);
int print_filters(hid_t dcpl_id);



/*-------------------------------------------------------------------------
 * filters
 *-------------------------------------------------------------------------
 */

int apply_filters(const char* name,    /* object name from traverse list */
                  int rank,            /* rank of dataset */
                  hsize_t *dims,       /* dimensions of dataset */
                  hid_t dcpl_id,       /* dataset creation property list */
                  pack_opt_t *options); /* repack options */

int has_filter(hid_t dcpl_id,
               H5Z_filter_t filtnin);


int can_read(const char* name,    /* object name from traverse list */
             hid_t dcpl_id,       /* dataset creation property list */
             pack_opt_t *options); /* repack options */


/*-------------------------------------------------------------------------
 * layout functions
 *-------------------------------------------------------------------------
 */

int has_layout(hid_t dcpl_id,
               pack_info_t *obj);

int layout_this(hid_t dcpl_id,             /* DCPL from input object */
                const char* name,          /* object name from traverse list */
                pack_opt_t *options,       /* repack options */
                pack_info_t *pack /*OUT*/) /* object to apply layout */;

int apply_layout(hid_t dcpl_id,
                 pack_info_t *pack);  /* info about object  */


/*-------------------------------------------------------------------------
 * options table
 *-------------------------------------------------------------------------
 */
int          options_table_init( pack_opttbl_t **tbl );
int          options_table_free( pack_opttbl_t *table );
int          options_add_layout( obj_list_t *obj_list,
                                 int n_objs,
                                 pack_info_t *pack,
                                 pack_opttbl_t *table );
int          options_add_filter ( obj_list_t *obj_list,
                                 int n_objs,
                                 filter_info_t filt,
                                 pack_opttbl_t *table );
pack_info_t* options_get_object( const char *path,
                                 pack_opttbl_t *table);

/*-------------------------------------------------------------------------
 * parse functions
 *-------------------------------------------------------------------------
 */

obj_list_t* parse_filter(const char *str,
                         int *n_objs,
                         filter_info_t *filt,
                         pack_opt_t *options);

obj_list_t* parse_layout(const char *str,
                         int *n_objs,
                         pack_info_t *pack,    /* info about object */
                         pack_opt_t *options);

const char* get_sfilter (H5Z_filter_t filtn);
int         parse_number(char *str);



#endif  /* H5REPACK_H__ */