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-rw-r--r--mesalib/src/glu/sgi/libtess/dict.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/mesalib/src/glu/sgi/libtess/dict.c b/mesalib/src/glu/sgi/libtess/dict.c
new file mode 100644
index 000000000..49d4f759e
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+++ b/mesalib/src/glu/sgi/libtess/dict.c
@@ -0,0 +1,111 @@
+/*
+ * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+ * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice including the dates of first publication and
+ * either this permission notice or a reference to
+ * http://oss.sgi.com/projects/FreeB/
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Silicon Graphics, Inc.
+ * shall not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization from
+ * Silicon Graphics, Inc.
+ */
+/*
+** Author: Eric Veach, July 1994.
+**
+*/
+
+#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, *next;
+
+ for( node = dict->head.next; node != &dict->head; node = next ) {
+ next = 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;
+}