grib2.h

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#ifndef _grib2_H
#define _grib2_H
#include <stdio.h>
#include <stdint.h>
 
#define G2_VERSION "1.7.0" 
#define G2_PNG_ENABLED 1 
#define G2_JPEG2000_ENABLED 1 
typedef int64_t g2int; 
 
typedef uint64_t g2intu; 
 
typedef float g2float;
 
struct gribfield
{
    g2int version;
 
    g2int discipline;
 
    g2int *idsect;
 
    g2int idsectlen;
 
    unsigned char *local;
 
    g2int locallen;
 
    g2int ifldnum;
 
    g2int griddef;
 
    g2int ngrdpts;
 
    g2int numoct_opt;
 
    g2int interp_opt;
 
    g2int num_opt;
 
    g2int *list_opt;
 
    g2int igdtnum;
 
    g2int igdtlen;
 
    g2int *igdtmpl;
 
    g2int ipdtnum;
 
    g2int ipdtlen;
 
    g2int *ipdtmpl;
 
    g2int num_coord;
 
    float *coord_list;
 
    g2int ndpts;
 
    g2int idrtnum;
 
    g2int idrtlen;
 
    g2int *idrtmpl;
 
    g2int unpacked;
 
    g2int expanded;
 
    g2int ibmap;
 
    g2int *bmap;
 
    float *fld;
};
 
typedef struct gribfield gribfield; 
/*  Prototypes for unpacking sections API  */
g2int g2_unpack1(unsigned char *cgrib, g2int *iofst, g2int **ids, g2int *idslen);
g2int g2_unpack2(unsigned char *cgrib, g2int *iofst, g2int *lencsec2,
                 unsigned char **csec2);
g2int g2_unpack3(unsigned char *cgrib, g2int *iofst, g2int **igds, g2int **igdstmpl,
                 g2int *mapgridlen, g2int **ideflist, g2int *idefnum);
g2int g2_unpack4(unsigned char *cgrib, g2int *iofst, g2int *ipdsnum, g2int **ipdstmpl,
                 g2int *mappdslen, float **coordlist, g2int *numcoord);
g2int g2_unpack5(unsigned char *cgrib, g2int *iofst, g2int *ndpts, g2int *idrsnum,
                 g2int **idrstmpl, g2int *mapdrslen);
g2int g2_unpack6(unsigned char *cgrib, g2int *iofst, g2int ngpts, g2int *ibmap,
                 g2int **bmap);
g2int g2_unpack7(unsigned char *cgrib, g2int *iofst, g2int igdsnum, g2int *igdstmpl,
                 g2int idrsnum, g2int *idrstmpl, g2int ndpts, float **fld);
 
/*  Prototypes for unpacking API  */
void seekgb(FILE *lugb, g2int iseek, g2int mseek, g2int *lskip,
            g2int *lgrib);
g2int g2_info(unsigned char *cgrib, g2int *listsec0, g2int *listsec1,
              g2int *numfields, g2int *numlocal);
g2int g2_getfld(unsigned char *cgrib, g2int ifldnum, g2int unpack, g2int expand,
                gribfield **gfld);
void g2_free(gribfield *gfld);
 
/*  Prototypes for packing API  */
g2int g2_create(unsigned char *cgrib, g2int *listsec0, g2int *listsec1);
g2int g2_addlocal(unsigned char *cgrib, unsigned char *csec2, g2int lcsec2);
g2int g2_addgrid(unsigned char *cgrib, g2int *igds, g2int *igdstmpl, g2int *ideflist,
                 g2int idefnum);
g2int g2_addfield(unsigned char *cgrib, g2int ipdsnum, g2int *ipdstmpl,
                  float *coordlist, g2int numcoord, g2int idrsnum, g2int *idrstmpl,
                  float *fld, g2int ngrdpts, g2int ibmap, g2int *bmap);
g2int g2_gribend(unsigned char *cgrib);
 
/* Compression. */
void pngpack(float *fld, g2int width, g2int height, g2int *idrstmpl,
             unsigned char *cpack, g2int *lcpack);
g2int pngunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,
                float *fld);
void pngpackd(double *fld, g2int width, g2int height, g2int *idrstmpl,
             unsigned char *cpack, g2int *lcpack);
g2int pngunpackd(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,
                double *fld);
void jpcpack(float *fld, g2int width, g2int height, g2int *idrstmpl,
             unsigned char *cpack, g2int *lcpack);
g2int jpcunpack(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,
                float *fld);
void jpcpackd(double *fld, g2int width, g2int height, g2int *idrstmpl,
             unsigned char *cpack, g2int *lcpack);
g2int jpcunpackd(unsigned char *cpack, g2int len, g2int *idrstmpl, g2int ndpts,
                double *fld);
 
/* Logging, for debugging purposes. */
int g2c_set_log_level(int new_level);
 
/* Error codes for G2 API. */
#define G2_NO_ERROR 0             
#define G2_CREATE_GRIB_VERSION -1 
#define G2_INFO_NO_GRIB 1         
#define G2_INFO_GRIB_VERSION 2    
#define G2_INFO_NO_SEC1 3         
#define G2_INFO_WRONG_END 4       
#define G2_INFO_BAD_END 5         
#define G2_INFO_INVAL_SEC 6       
#define G2_GETFLD_NO_GRIB 1       
#define G2_GETFLD_GRIB_VERSION 2  
#define G2_GETFLD_INVAL 3         
#define G2_GETFLD_WRONG_END 4     
#define G2_GETFLD_WRONG_NFLDS 6   
#define G2_GETFLD_BAD_END 7       
#define G2_GETFLD_INVAL_SEC 8     
#define G2_GETFLD_NO_DRT 9        
#define G2_GETFLD_BAD_SEC1 15     
#define G2_GETFLD_BAD_SEC2 16     
#define G2_GETFLD_BAD_SEC3 10     
#define G2_GETFLD_BAD_SEC4 11     
#define G2_GETFLD_BAD_SEC5 12     
#define G2_GETFLD_BAD_SEC6 13     
#define G2_GETFLD_BAD_SEC7 14     
#define G2_GETFLD_NO_BITMAP 17    
#define G2_GRIBEND_MSG_INIT -1    
#define G2_BAD_SEC -4             
#define G2_UNPACK_BAD_SEC 2       
#define G2_UNPACK_NO_MEM 6        
#define G2_UNPACK3_BAD_GDT 5      
#define G2_UNPACK4_BAD_PDT 5      
#define G2_UNPACK5_BAD_DRT 7      
#define G2_UNPACK6_BAD_BITMAP 4   
#define G2_UNPACK7_CORRUPT_SEC 7  
#define G2_UNPACK7_WRONG_GDT 5    
#define G2_UNPACK7_BAD_DRT 4      
#define G2_ADD_MSG_INIT -1        
#define G2_ADD_MSG_COMPLETE -2    
#define G2_BAD_SEC_COUNTS -3      
#define G2_ADDFIELD_BAD_PDT -5    
#define G2_ADDFIELD_BAD_GDS -6    
#define G2_ADDFIELD_BAD_DRT -7    
#define G2_ADDFIELD_BAD_BITMAP -8 
#define G2_ADDFIELD_BAD_GDT -9    
#define G2_ADDFIELD_ERR -10       
#define G2_ADDGRID_BAD_GDT -5     
#define G2_JPCUNPACK_MEM 1        
#define G2_SPECUNPACK_TYPE -3     
#define G2_JASPER_INIT -2         
#define G2_JASPER_ENCODE -3       
#define G2_JASPER_DECODE -3       
#define G2_JASPER_DECODE_COLOR -5 
/* These are the new error codes. */
#define G2C_NO_ERROR 0       
#define G2C_NOT_GRIB -50     
#define G2C_MSG_COMPLETE -51 
#endif  /*  _grib2_H  */