Merge a few small blenlib changes from the render25 branch:

* define for missing hypotf on msvc.
* svd_m4 and pseudoinverse_m4_m4 functions.
* small tweak to perlin noise, use static function instead of macro.
* BLI_linklist_find and BLI_linklist_insert_after functions.
* MALWAYS_INLINE define to force inlining.

1 files changed, 29 insertions, 3 deletions

diff --git a/source/blender/blenlib/intern/BLI_linklist.c b/source/blender/blenlib/intern/BLI_linklist.c
index afa4d273090..c903e66057e 100644
--- a/source/blender/blenlib/intern/BLI_linklist.c
+++ b/source/blender/blenlib/intern/BLI_linklist.c
@@ -45,18 +45,28 @@ int BLI_linklist_length(LinkNode *list) {
 	}
 }
 
-int BLI_linklist_index(struct LinkNode *list, void *ptr)
+int BLI_linklist_index(LinkNode *list, void *ptr)
 {
 	int index;
 	
-	for (index = 0; list; list= list->next, index++) {
+	for (index = 0; list; list= list->next, index++)
 		if (list->link == ptr)
 			return index;
-	}
 	
 	return -1;
 }
 
+LinkNode *BLI_linklist_find(LinkNode *list, int index)
+{
+	int i;
+	
+	for (i = 0; list; list= list->next, i++)
+		if (i == index)
+			return list;
+
+	return NULL;
+}
+
 void BLI_linklist_reverse(LinkNode **listp) {
 	LinkNode *rhead= NULL, *cur= *listp;
 	
@@ -105,6 +115,22 @@ void BLI_linklist_prepend_arena(LinkNode **listp, void *ptr, MemArena *ma) {
 	*listp= nlink;
 }
 
+void BLI_linklist_insert_after(LinkNode **listp, void *ptr) {
+	LinkNode *nlink= MEM_mallocN(sizeof(*nlink), "nlink");
+	LinkNode *node = *listp;
+
+	nlink->link = ptr;
+
+	if(node) {
+		nlink->next = node->next;
+		node->next = nlink;
+	}
+	else {
+		nlink->next = NULL;
+		*listp = nlink;
+	}
+}
+
 void BLI_linklist_free(LinkNode *list, LinkNodeFreeFP freefunc) {
 	while (list) {
 		LinkNode *next= list->next;