forked from bartvdbraak/blender
Generalization of node dependency sorting, avoid using the sock->link pointer. This pointer only works for sockets that follow the standard 1-to-n connectivity (an output can be linked to multiple inputs, an input can only have one connection). Future node trees may implement 1-to-1 or n-to-1 linking.
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08fc8c3561
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2a3c65169f
@ -1641,21 +1641,21 @@ int BKE_node_clipboard_get_type(void)
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/* ************** dependency stuff *********** */
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/* node is guaranteed to be not checked before */
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static int node_get_deplist_recurs(bNode *node, bNode ***nsort)
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static int node_get_deplist_recurs(bNodeTree *ntree, bNode *node, bNode ***nsort)
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{
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bNode *fromnode;
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bNodeSocket *sock;
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bNodeLink *link;
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int level = 0xFFF;
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node->done = TRUE;
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/* check linked nodes */
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for (sock = node->inputs.first; sock; sock = sock->next) {
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if (sock->link) {
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fromnode = sock->link->fromnode;
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for (link = ntree->links.first; link; link = link->next) {
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if (link->tonode == node) {
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fromnode = link->fromnode;
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if (fromnode) {
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if (fromnode->done == 0)
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fromnode->level = node_get_deplist_recurs(fromnode, nsort);
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fromnode->level = node_get_deplist_recurs(ntree, fromnode, nsort);
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if (fromnode->level <= level)
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level = fromnode->level - 1;
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}
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@ -1665,7 +1665,7 @@ static int node_get_deplist_recurs(bNode *node, bNode ***nsort)
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/* check parent node */
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if (node->parent) {
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if (node->parent->done == 0)
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node->parent->level = node_get_deplist_recurs(node->parent, nsort);
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node->parent->level = node_get_deplist_recurs(ntree, node->parent, nsort);
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if (node->parent->level <= level)
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level = node->parent->level - 1;
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}
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@ -1699,7 +1699,7 @@ void ntreeGetDependencyList(struct bNodeTree *ntree, struct bNode ***deplist, in
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/* recursive check */
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for (node = ntree->nodes.first; node; node = node->next) {
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if (node->done == 0) {
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node->level = node_get_deplist_recurs(node, &nsort);
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node->level = node_get_deplist_recurs(ntree, node, &nsort);
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}
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}
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}
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@ -1717,7 +1717,7 @@ static void ntree_update_node_level(bNodeTree *ntree)
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/* recursive check */
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for (node = ntree->nodes.first; node; node = node->next) {
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if (node->done == 0) {
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node->level = node_get_deplist_recurs(node, NULL);
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node->level = node_get_deplist_recurs(ntree, node, NULL);
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}
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}
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}
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