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- /*====================================================================*
- - Copyright (C) 2001 Leptonica. All rights reserved.
- -
- - Redistribution and use in source and binary forms, with or without
- - modification, are permitted provided that the following conditions
- - are met:
- - 1. Redistributions of source code must retain the above copyright
- - notice, this list of conditions and the following disclaimer.
- - 2. Redistributions in binary form must reproduce the above
- - copyright notice, this list of conditions and the following
- - disclaimer in the documentation and/or other materials
- - provided with the distribution.
- -
- - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *====================================================================*/
- #ifndef LEPTONICA_ARRAY_H
- #define LEPTONICA_ARRAY_H
- /*
- * Contains the following structs:
- * struct Numa
- * struct Numaa
- * struct Numa2d
- * struct NumaHash
- * struct L_Dna
- * struct L_Dnaa
- * struct Sarray
- * struct L_Bytea
- *
- * Contains definitions for:
- * Numa interpolation flags
- * Numa and FPix border flags
- * Numa data type conversion to string
- */
- /*------------------------------------------------------------------------*
- * 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 DNA_VERSION_NUMBER 1
- /* Double number array: an array of doubles */
- struct L_Dna
- {
- 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_float64 startx; /* x value assigned to array[0] */
- l_float64 delx; /* change in x value as i --> i + 1 */
- l_float64 *array; /* number array */
- };
- typedef struct L_Dna L_DNA;
- /* Array of double number arrays */
- struct L_Dnaa
- {
- l_int32 nalloc; /* size of allocated ptr array */
- l_int32 n; /* number of L_Dna saved */
- struct L_Dna **dna; /* array of L_Dna */
- };
- typedef struct L_Dnaa L_DNAA;
- #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 and Fpix */
- enum {
- L_CONTINUED_BORDER = 1, /* extended with same value */
- L_SLOPE_BORDER = 2, /* extended with constant normal derivative */
- L_MIRRORED_BORDER = 3 /* mirrored */
- };
- /* Flags for data type converted from Numa */
- enum {
- L_INTEGER_VALUE = 1, /* convert to integer */
- L_FLOAT_VALUE = 2 /* convert to float */
- };
- #endif /* LEPTONICA_ARRAY_H */
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