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https://github.com/tesseract-ocr/tesseract.git
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81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
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/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights reserved.
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- This software is distributed in the hope that it will be
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- useful, but with NO WARRANTY OF ANY KIND.
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- No author or distributor accepts responsibility to anyone for the
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- consequences of using this software, or for whether it serves any
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- particular purpose or works at all, unless he or she says so in
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- writing. Everyone is granted permission to copy, modify and
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- redistribute this source code, for commercial or non-commercial
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- purposes, with the following restrictions: (1) the origin of this
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- source code must not be misrepresented; (2) modified versions must
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- be plainly marked as such; and (3) this notice may not be removed
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- or altered from any source or modified source distribution.
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*====================================================================*/
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#ifndef LEPTONICA_PTRA_H
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#define LEPTONICA_PTRA_H
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/*
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* Contains the following structs:
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* struct L_Ptra
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* struct L_Ptraa
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*
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* Contains definitions for:
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* L_Ptra compaction flags for removal
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* L_Ptra shifting flags for insert
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* L_Ptraa accessor flags
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*/
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/*------------------------------------------------------------------------*
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* Generic Ptr Array Structs *
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*------------------------------------------------------------------------*/
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/* Generic pointer array */
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struct L_Ptra
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{
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l_int32 nalloc; /* size of allocated ptr array */
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l_int32 imax; /* greatest valid index */
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l_int32 nactual; /* actual number of stored elements */
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void **array; /* ptr array */
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};
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typedef struct L_Ptra L_PTRA;
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/* Array of generic pointer arrays */
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struct L_Ptraa
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{
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l_int32 nalloc; /* size of allocated ptr array */
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struct L_Ptra **ptra; /* array of ptra */
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};
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typedef struct L_Ptraa L_PTRAA;
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/*------------------------------------------------------------------------*
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* Array flags *
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*------------------------------------------------------------------------*/
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/* Flags for removal from L_Ptra */
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enum {
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L_NO_COMPACTION = 1, /* null the pointer only */
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L_COMPACTION = 2 /* compact the array */
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};
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/* Flags for insertion into L_Ptra */
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enum {
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L_AUTO_DOWNSHIFT = 0, /* choose based on number of holes */
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L_MIN_DOWNSHIFT = 1, /* downshifts min # of ptrs below insert */
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L_FULL_DOWNSHIFT = 2 /* downshifts all ptrs below insert */
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};
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/* Accessor flags for L_Ptraa */
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enum {
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L_HANDLE_ONLY = 0, /* ptr to L_Ptra; caller can inspect only */
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L_REMOVE = 1 /* caller owns; destroy or save in L_Ptraa */
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};
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#endif /* LEPTONICA_PTRA_H */
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