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- #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
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