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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_PTRA_H
- #define LEPTONICA_PTRA_H
- /*
- * Contains the following structs:
- * struct L_Ptra
- * struct L_Ptraa
- *
- * Contains definitions for:
- * L_Ptra compaction flags for removal
- * L_Ptra shifting flags for insert
- * L_Ptraa accessor flags
- */
- /*------------------------------------------------------------------------*
- * Generic Ptr Array Structs *
- *------------------------------------------------------------------------*/
- /* Generic pointer array */
- struct L_Ptra
- {
- l_int32 nalloc; /* size of allocated ptr array */
- l_int32 imax; /* greatest valid index */
- l_int32 nactual; /* actual number of stored elements */
- void **array; /* ptr array */
- };
- typedef struct L_Ptra L_PTRA;
- /* Array of generic pointer arrays */
- struct L_Ptraa
- {
- l_int32 nalloc; /* size of allocated ptr array */
- struct L_Ptra **ptra; /* array of ptra */
- };
- typedef struct L_Ptraa L_PTRAA;
- /*------------------------------------------------------------------------*
- * Array flags *
- *------------------------------------------------------------------------*/
- /* Flags for removal from L_Ptra */
- enum {
- L_NO_COMPACTION = 1, /* null the pointer only */
- L_COMPACTION = 2 /* compact the array */
- };
- /* Flags for insertion into L_Ptra */
- enum {
- L_AUTO_DOWNSHIFT = 0, /* choose based on number of holes */
- L_MIN_DOWNSHIFT = 1, /* downshifts min # of ptrs below insert */
- L_FULL_DOWNSHIFT = 2 /* downshifts all ptrs below insert */
- };
- /* Accessor flags for L_Ptraa */
- enum {
- L_HANDLE_ONLY = 0, /* ptr to L_Ptra; caller can inspect only */
- L_REMOVE = 1 /* caller owns; destroy or save in L_Ptraa */
- };
- #endif /* LEPTONICA_PTRA_H */
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