diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2001-03-17 00:25:40 +0000 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2001-03-17 00:25:40 +0000 |
commit | 77cc447b96a75106354da02437c4e868265d27bb (patch) | |
tree | 06336e071d4786d72d681c72d68126191f0b2993 /src/glu/sgi/libtess/dict.c | |
parent | 24fab8e2507d9ccc45c1a94de0ad44088cfb8738 (diff) |
SGI SI GLU library
Diffstat (limited to 'src/glu/sgi/libtess/dict.c')
-rw-r--r-- | src/glu/sgi/libtess/dict.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/glu/sgi/libtess/dict.c b/src/glu/sgi/libtess/dict.c new file mode 100644 index 0000000000..fac8032ff3 --- /dev/null +++ b/src/glu/sgi/libtess/dict.c @@ -0,0 +1,117 @@ +/* +** License Applicability. Except to the extent portions of this file are +** made subject to an alternative license as permitted in the SGI Free +** Software License B, Version 1.1 (the "License"), the contents of this +** file are subject only to the provisions of the License. You may not use +** this file except in compliance with the License. You may obtain a copy +** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +** +** http://oss.sgi.com/projects/FreeB +** +** Note that, as provided in the License, the Software is distributed on an +** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +** +** Original Code. The Original Code is: OpenGL Sample Implementation, +** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +** Copyright in any portions created by third parties is as indicated +** elsewhere herein. All Rights Reserved. +** +** Additional Notice Provisions: The application programming interfaces +** established by SGI in conjunction with the Original Code are The +** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +** Window System(R) (Version 1.3), released October 19, 1998. This software +** was created using the OpenGL(R) version 1.2.1 Sample Implementation +** published by SGI, but has not been independently verified as being +** compliant with the OpenGL(R) version 1.2.1 Specification. +** +*/ +/* +** Author: Eric Veach, July 1994. +** +** $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $ +** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libtess/dict.c,v 1.1 2001/03/17 00:25:41 brianp Exp $ +*/ + +#include <stddef.h> +#include "dict-list.h" +#include "memalloc.h" + +/* really __gl_dictListNewDict */ +Dict *dictNewDict( void *frame, + int (*leq)(void *frame, DictKey key1, DictKey key2) ) +{ + Dict *dict = (Dict *) memAlloc( sizeof( Dict )); + DictNode *head; + + if (dict == NULL) return NULL; + + head = &dict->head; + + head->key = NULL; + head->next = head; + head->prev = head; + + dict->frame = frame; + dict->leq = leq; + + return dict; +} + +/* really __gl_dictListDeleteDict */ +void dictDeleteDict( Dict *dict ) +{ + DictNode *node; + + for( node = dict->head.next; node != &dict->head; node = node->next ) { + memFree( node ); + } + memFree( dict ); +} + +/* really __gl_dictListInsertBefore */ +DictNode *dictInsertBefore( Dict *dict, DictNode *node, DictKey key ) +{ + DictNode *newNode; + + do { + node = node->prev; + } while( node->key != NULL && ! (*dict->leq)(dict->frame, node->key, key)); + + newNode = (DictNode *) memAlloc( sizeof( DictNode )); + if (newNode == NULL) return NULL; + + newNode->key = key; + newNode->next = node->next; + node->next->prev = newNode; + newNode->prev = node; + node->next = newNode; + + return newNode; +} + +/* really __gl_dictListDelete */ +void dictDelete( Dict *dict, DictNode *node ) /*ARGSUSED*/ +{ + node->next->prev = node->prev; + node->prev->next = node->next; + memFree( node ); +} + +/* really __gl_dictListSearch */ +DictNode *dictSearch( Dict *dict, DictKey key ) +{ + DictNode *node = &dict->head; + + do { + node = node->next; + } while( node->key != NULL && ! (*dict->leq)(dict->frame, key, node->key)); + + return node; +} |