1 /* 2 ** License Applicability. Except to the extent portions of this file are 3 ** made subject to an alternative license as permitted in the SGI Free 4 ** Software License B, Version 1.1 (the "License"), the contents of this 5 ** file are subject only to the provisions of the License. You may not use 6 ** this file except in compliance with the License. You may obtain a copy 7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: 9 ** 10 ** http://oss.sgi.com/projects/FreeB 11 ** 12 ** Note that, as provided in the License, the Software is distributed on an 13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS 14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND 15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A 16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. 17 ** 18 ** Original Code. The Original Code is: OpenGL Sample Implementation, 19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, 20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. 21 ** Copyright in any portions created by third parties is as indicated 22 ** elsewhere herein. All Rights Reserved. 23 ** 24 ** Additional Notice Provisions: The application programming interfaces 25 ** established by SGI in conjunction with the Original Code are The 26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released 27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version 28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X 29 ** Window System(R) (Version 1.3), released October 19, 1998. This software 30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation 31 ** published by SGI, but has not been independently verified as being 32 ** compliant with the OpenGL(R) version 1.2.1 Specification. 33 ** 34 */ 35 /* 36 ** Author: Eric Veach, July 1994. 37 ** 38 ** $Date$ $Revision$ 39 ** $Header: //depot/main/gfx/lib/glu/libtess/dict.h#5 $ 40 */ 41 42 #ifndef __dict_list_h_ 43 #define __dict_list_h_ 44 45 /* Use #define's so that another heap implementation can use this one */ 46 47 #define DictKey DictListKey 48 #define Dict DictList 49 #define DictNode DictListNode 50 51 #define dictNewDict(frame,leq) __gl_dictListNewDict(frame,leq) 52 #define dictDeleteDict(dict) __gl_dictListDeleteDict(dict) 53 54 #define dictSearch(dict,key) __gl_dictListSearch(dict,key) 55 #define dictInsert(dict,key) __gl_dictListInsert(dict,key) 56 #define dictInsertBefore(dict,node,key) __gl_dictListInsertBefore(dict,node,key) 57 #define dictDelete(dict,node) __gl_dictListDelete(dict,node) 58 59 #define dictKey(n) __gl_dictListKey(n) 60 #define dictSucc(n) __gl_dictListSucc(n) 61 #define dictPred(n) __gl_dictListPred(n) 62 #define dictMin(d) __gl_dictListMin(d) 63 #define dictMax(d) __gl_dictListMax(d) 64 65 66 67 typedef void *DictKey; 68 typedef struct Dict Dict; 69 typedef struct DictNode DictNode; 70 71 Dict *dictNewDict( 72 void *frame, 73 int (*leq)(void *frame, DictKey key1, DictKey key2) ); 74 75 void dictDeleteDict( Dict *dict ); 76 77 /* Search returns the node with the smallest key greater than or equal 78 * to the given key. If there is no such key, returns a node whose 79 * key is NULL. Similarly, Succ(Max(d)) has a NULL key, etc. 80 */ 81 DictNode *dictSearch( Dict *dict, DictKey key ); 82 DictNode *dictInsertBefore( Dict *dict, DictNode *node, DictKey key ); 83 void dictDelete( Dict *dict, DictNode *node ); 84 85 #define __gl_dictListKey(n) ((n)->key) 86 #define __gl_dictListSucc(n) ((n)->next) 87 #define __gl_dictListPred(n) ((n)->prev) 88 #define __gl_dictListMin(d) ((d)->head.next) 89 #define __gl_dictListMax(d) ((d)->head.prev) 90 #define __gl_dictListInsert(d,k) (dictInsertBefore((d),&(d)->head,(k))) 91 92 93 /*** Private data structures ***/ 94 95 struct DictNode { 96 DictKey key; 97 DictNode *next; 98 DictNode *prev; 99 }; 100 101 struct Dict { 102 DictNode head; 103 void *frame; 104 int (*leq)(void *frame, DictKey key1, DictKey key2); 105 }; 106 107 #endif 108