mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-03 17:29:04 +08:00
83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
|
/**************************************************************************
|
||
|
|
* Revision 5.1 89/07/27 11:46:53 11:46:53 ray ()
|
||
|
|
* (C) Copyright 1989, Hewlett-Packard Ltd.
|
||
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
** you may not use this file except in compliance with the License.
|
||
|
|
** You may obtain a copy of the License at
|
||
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
** Unless required by applicable law or agreed to in writing, software
|
||
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
** See the License for the specific language governing permissions and
|
||
|
|
** limitations under the License.
|
||
|
|
*
|
||
|
|
**************************************************************************/
|
||
|
|
#include "mfcpch.h"
|
||
|
|
#include "expandblob.h"
|
||
|
|
#include "tessclas.h"
|
||
|
|
#include "const.h"
|
||
|
|
#include "structures.h"
|
||
|
|
#include "freelist.h"
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
free_blob(blob) frees the blob and everything it is connected to,
|
||
|
|
i.e. outlines, nodes, edgepts, bytevecs, ratings etc
|
||
|
|
*************************************************************************/
|
||
|
|
void free_blob( /*blob to free */
|
||
|
|
register TBLOB *blob) {
|
||
|
|
if (blob == NULL)
|
||
|
|
return; /*duff blob */
|
||
|
|
free_tree (blob->outlines); /*do the tree of outlines */
|
||
|
|
oldblob(blob); /*free the actual blob */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/***************************************************************************
|
||
|
|
free_tree(outline) frees the current outline
|
||
|
|
and then its sub-tree
|
||
|
|
*****************************************************************************/
|
||
|
|
void free_tree( /*outline to draw */
|
||
|
|
register TESSLINE *outline) {
|
||
|
|
if (outline == NULL)
|
||
|
|
return; /*duff outline */
|
||
|
|
if (outline->next != NULL)
|
||
|
|
free_tree (outline->next);
|
||
|
|
if (outline->child != NULL)
|
||
|
|
free_tree (outline->child); /*and sub-tree */
|
||
|
|
free_outline(outline); /*free the outline */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
free_outline(outline) frees an outline and anything connected to it
|
||
|
|
*********************************************************************************/
|
||
|
|
void free_outline( /*outline to free */
|
||
|
|
register TESSLINE *outline) {
|
||
|
|
if (outline->compactloop != NULL)
|
||
|
|
/*no compact loop */
|
||
|
|
memfree (outline->compactloop);
|
||
|
|
|
||
|
|
if (outline->loop != NULL)
|
||
|
|
free_loop (outline->loop);
|
||
|
|
|
||
|
|
oldoutline(outline);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*********************************************************************************
|
||
|
|
free_loop(startpt) frees all the elements of the closed loop
|
||
|
|
starting at startpt
|
||
|
|
***********************************************************************************/
|
||
|
|
void free_loop( /*outline to free */
|
||
|
|
register EDGEPT *startpt) {
|
||
|
|
register EDGEPT *edgept; /*current point */
|
||
|
|
|
||
|
|
if (startpt == NULL)
|
||
|
|
return;
|
||
|
|
edgept = startpt;
|
||
|
|
do {
|
||
|
|
edgept = oldedgept (edgept); /*free it and move on */
|
||
|
|
}
|
||
|
|
while (edgept != startpt);
|
||
|
|
}
|