#include <grass/gis.h>
#include <rpc/types.h>
#include <rpc/xdr.h>

#define XDR_FLOAT_NBYTES 4
#define XDR_DOUBLE_NBYTES 8
#define NULL_ROWS_INMEM 8

/* if short is 16 bits, then
 *       short will allow 32767 cols
 *       unsigned short will allow 65536 cols
 * use int if you need more columns (but this will take more memory).
 *
*/
typedef int COLUMN_MAPPING ;

struct fileinfo                  /* Information for opened cell files */
{
    int open_mode;             /* see defines below            */
    struct Cell_head cellhd;   /* Cell header                  */
    struct Reclass reclass;    /* Table reclass                */
    struct Cell_stats statf;   /* Cell stats                   */
    struct Range range;        /* Range structure              */
    struct FPRange fp_range;   /* float Range structure        */
    int want_histogram; 
    int reclass_flag;          /* Automatic reclass flag       */
    off_t *row_ptr;            /* File row addresses           */
    COLUMN_MAPPING *col_map;   /* Data to window col mapping   */
    double C1,C2;              /* Data to window row constants */
    int cur_row;               /* Current data row in memory   */
    int null_cur_row;          /* Current null row in memory   */
    int cur_nbytes;            /* nbytes per cell for current row */
    unsigned char *data;       /* Decompressed data buffer     */
    int nbytes;                /* bytes per cell               */
    RASTER_MAP_TYPE map_type;  /* type: int, float or double map */
    char *temp_name;           /* Temporary name for NEW files */
    char *null_temp_name;      /* Temporary name for NEW NULL files */
    int null_file_exists;      /* for existing raster maps     */
    char *name;                /* Name of open file            */
    char *mapset;              /* Mapset of open file          */
    int io_error;              /* io error warning given       */
    XDR xdrstream;             /* xdr stream for reading fp    */
    unsigned char *NULL_ROWS [NULL_ROWS_INMEM];
    unsigned char *null_work_buf;  /* data buffer for reading null rows    */
    int min_null_row;          /* Minimum row null row number in memory */
    struct Quant quant;
};

struct G__                         /*  Structure of library globals */
{
    int fp_nbytes;                   /* size of cell in floating maps */
    RASTER_MAP_TYPE fp_type;         /* type for writing floating maps */
    struct Cell_head window;         /* Contains the current window          */
    int window_set;                  /* Flag: window set?                    */
    int mask_fd;                     /* File descriptor for automatic mask   */
    int auto_mask;                   /* Flag denoting automatic masking      */
    CELL *mask_buf;
    char *null_buf;                  /* buffer for reading null rows         */
    CELL *temp_buf;
    unsigned char *compressed_buf;   /* Pre/post compressed data buffer      */
    int compressed_buf_size;         /* sizeof compressed_buf                */
    unsigned char *work_buf;         /* work data buffer                     */
    int work_buf_size;               /* sizeof work_buf                      */
    int null_buf_size;               /* sizeof null_buf                      */
    int mask_buf_size;               /* sizeof mask_buf                      */
    int temp_buf_size;               /* sizeof temp_buf                      */
    int want_histogram; 

    int fileinfo_count;
    struct fileinfo *fileinfo;
};

extern struct G__ G__;      /* allocated in gisinit */

#define OPEN_OLD              1
#define OPEN_NEW_COMPRESSED   2
#define OPEN_NEW_UNCOMPRESSED 3
#define OPEN_NEW_RANDOM       4