/* Fax G3/G4 tables */typedef struct cfe_code_s cfe_code;struct cfe_code_s{	unsigned short code;	unsigned short nbits;};typedef struct cf_runs_s {	cfe_code termination[64];	cfe_code makeup[41];} cf_runs;/* Encoding tables *//* Codes common to 1-D and 2-D encoding. */extern const cfe_code cf_run_eol;extern const cf_runs cf_white_runs, cf_black_runs;extern const cfe_code cf_uncompressed[6];extern const cfe_code cf_uncompressed_exit[10]; /* indexed by 2 x length of *//* 1-D encoding. */extern const cfe_code cf1_run_uncompressed;/* 2-D encoding. */enum { cf2_run_vertical_offset = 3 };extern const cfe_code cf2_run_pass;extern const cfe_code cf2_run_vertical[7]; /* indexed by b1 - a1 + offset */extern const cfe_code cf2_run_horizontal;extern const cfe_code cf2_run_uncompressed;/* 2-D Group 3 encoding. */extern const cfe_code cf2_run_eol_1d;extern const cfe_code cf2_run_eol_2d;