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