/*====================================================================* - Copyright (C) 2001 Leptonica. All rights reserved. - This software is distributed in the hope that it will be - useful, but with NO WARRANTY OF ANY KIND. - No author or distributor accepts responsibility to anyone for the - consequences of using this software, or for whether it serves any - particular purpose or works at all, unless he or she says so in - writing. Everyone is granted permission to copy, modify and - redistribute this source code, for commercial or non-commercial - purposes, with the following restrictions: (1) the origin of this - source code must not be misrepresented; (2) modified versions must - be plainly marked as such; and (3) this notice may not be removed - or altered from any source or modified source distribution. *====================================================================*/ #ifndef LEPTONICA_ARRAY_H #define LEPTONICA_ARRAY_H /* * Contains the following structs: * struct Numa * struct Numaa * struct Numa2d * struct NumaHash * struct Sarray * struct L_Bytea * * Contains definitions for: * Numa interpolation flags */ /*------------------------------------------------------------------------* * Array Structs * *------------------------------------------------------------------------*/ #define NUMA_VERSION_NUMBER 1 /* Number array: an array of floats */ struct Numa { l_int32 nalloc; /* size of allocated number array */ l_int32 n; /* number of numbers saved */ l_int32 refcount; /* reference count (1 if no clones) */ l_float32 startx; /* x value assigned to array[0] */ l_float32 delx; /* change in x value as i --> i + 1 */ l_float32 *array; /* number array */ }; typedef struct Numa NUMA; /* Array of number arrays */ struct Numaa { l_int32 nalloc; /* size of allocated ptr array */ l_int32 n; /* number of Numa saved */ struct Numa **numa; /* array of Numa */ }; typedef struct Numaa NUMAA; /* Sparse 2-dimensional array of number arrays */ struct Numa2d { l_int32 nrows; /* number of rows allocated for ptr array */ l_int32 ncols; /* number of cols allocated for ptr array */ l_int32 initsize; /* initial size of each numa that is made */ struct Numa ***numa; /* 2D array of Numa */ }; typedef struct Numa2d NUMA2D; /* A hash table of Numas */ struct NumaHash { l_int32 nbuckets; l_int32 initsize; /* initial size of each numa that is made */ struct Numa **numa; }; typedef struct NumaHash NUMAHASH; #define SARRAY_VERSION_NUMBER 1 /* String array: an array of C strings */ struct Sarray { l_int32 nalloc; /* size of allocated ptr array */ l_int32 n; /* number of strings allocated */ l_int32 refcount; /* reference count (1 if no clones) */ char **array; /* string array */ }; typedef struct Sarray SARRAY; /* Byte array (analogous to C++ "string") */ struct L_Bytea { size_t nalloc; /* number of bytes allocated in data array */ size_t size; /* number of bytes presently used */ l_int32 refcount; /* reference count (1 if no clones) */ l_uint8 *data; /* data array */ }; typedef struct L_Bytea L_BYTEA; /*------------------------------------------------------------------------* * Array flags * *------------------------------------------------------------------------*/ /* Flags for interpolation in Numa */ enum { L_LINEAR_INTERP = 1, /* linear */ L_QUADRATIC_INTERP = 2 /* quadratic */ }; /* Flags for added borders in Numa */ enum { L_EXTENDED_BORDER = 1, /* extended with same value */ L_MIRRORED_BORDER = 2 /* mirrored */ }; #endif /* LEPTONICA_ARRAY_H */